Download HDU-42HA03/M(R1)

Service Manual
Commercial Air Conditioning
Duct type
HDU-42H03/M (AD42NAMACA+AU42NAPAGA) HDU-42HA03/M(R1)(AD42NAMBAA+AU42NAPBAA)
HDU-42C03/M (AD42NAMMAA+AU42NAPMAA) HDU-36HA03/M(R1)(AD36NAMBAA+AU36NAPBAA)
HDU-28H03/M (AD282AMACA+AU282ANAFA) HDU-28HA03/M(R1)(AD28NAMBAA+AU28NANBAA)
HDU-28C03/M (AD282AMMAA+AU282ANMAA)
Contents
1. Products coding direction and series introduction
2. Products technical parameters
3. Products specification
4. Name,size and function of the major component and accessories
5. Explosion diagram and assemblies detailss
6. Usage and setting of the remote controller
7. Introduction to electric control function
8. Electrical diagram
9. Diagnostic of abnormal phenomenon
10. System flow chart
11. Installation and maintenance
12. Disassembly procedure
Features
Wired Remote Control
Flexible setting of the air outlet
Super-silence design
Remote network control for thousands miles
Haier Group
2002.2.
1. Description of Product Codes and Brief Introduction to Series of Products
a). Description of Model Coding
H
D U
-
4
2
H
3 / M
0
Middle external static pressare
Type of Power Source:3-phased
Function Code :dual use for cooling and heating
Nominal cooling output(BTU/h):
the first two numbers based on thousand unit
Code for structure of indoor and outdoor units:split type air duct
conditioner
H-abbreviation for Haier
A
D
42
N
A M A
C
A
Type of climate:T1
Serial number for designing
Category of product:heat pump
Features of external appearance
Product series:one outdoor unit for one indoor unit
Applicable voltage;380V/50Hz
Product spedification:valid digit above kilobit
Type of product :air duct type indoor unit
Air Conditioner
b)Table 1
No.
Operating Mode
1
2
Nominal Cooling
Nominal Heating
Indoor Operating Mode
Temp.
Humidity
DB:27
WB:19
DB:20
WB:15
Outdoor Operating Mode
Temp.
Humidity
DB:35
WB:24
DB:7
WB:6
c)Brief Introduction to Series of Products
i)Seriation of products:
The following air duct type air conditioners are now available for export:
HDU-42H03/M HDU-42C03/M HDU-42HA03/M(R1) HDU-28H03/M HDU-28C03/M
HDU-36HA03/M(R1) HDU-28HA03/M(R1)
ii)Features of Products:
Totally concealed machine body
All the machine body is to be installed inside the ceiling, having no effect on the
beauty of the room and without taking any room space.
Air intake via the rear air intake duct
This new design has changed the former unique pattern of air intake, and a larger
distance between air intake and air return cycles as well as better air quality can be
achieved.
Flexible and easier installation
The machine body is to be installed in a totally concealed way,its fan system has a longer distance
coverage so as to supply its airflow to several rooms, and the indoor unit may be installed inside the
ceiling of a room or corridor. The installation is simple and flexible, and there is no need to have
specified personnel for management, thus cutting down the expenses; the machine is lighter and
smaller, and convenient for installation, it takes an extremely small building space, thus lower the
construction cost; the indoor unit is to be concealed inside the ceiling, and hence the usable space
can be saved and the room decoration will not be affected.
d. Brief Introduction for T1
T2 T3 working condition
Climate type
Type of Air Conditioner
T1
T2
T3
Cool only
18
43
10
35
21
52
Heat pump
-7
43
-7
35
-7
52
Electricity heating
43
35
52
2. Products technical parameters
Type
HDU-42C03/M
Appearance color (indoor/outdoor unit)
White/White
Cold producing capacity
42000 BTU/h
Heat producing capacity
————
Cold producing coefficient
8.75
Heat producing coefficient
————
Cold producing power
4800 W
Heat producing power
————
Ratio of energy generating to consuming
2.56
Defrosting capacity
5.0×10
New wind capacity
-3
3
m /h
New air inlet included
V
Negative hydronium quantity of negative
hydronium type machine
Operating current scope
————
Operating voltage scope
380~400
Operating temperature scope
18~43 ℃
Operating fitting frequency
7.82-9.5 A
50 Hz
Temperature adjustment difference
±1 ℃
Type of refrigerant
R22
Climate type
T1
Anti-static protection type
I
Indoor unit noises (cold producing)
42/36/30 dB(A)
Outdoor unit noises (cold producing)
64 dB(A)
Indoor unit noises (heat producing)
————
Outdoor unit noises (heat producing)
————
External dimension of indoor unit
1410×645×350 mm
External dimension of outdoor unit
948×340×1225 mm
Package dimension of indoor unit
1557×800×370 mm
Package dimension of outdoor unit
1050×440×1375 mm
Installation motherboard dimension
————
Layer restriction of laminated indoor and
outdoor unit
4/2
Net weight/gross weight of indoor unit
55/75 kg
Net weight/gross weight of outdoor unit
85/111 kg
30 m
Current-in side (indoor/outdoor)
————
3.07 kg
Maximum infusing quantity of refrigerant
5.77 kg
Cleanout frequency of filter
Once per month
Type of filter (filer screen)
XPE
Filtration efficiency
————
Dimension of filter (filter screen)
————
Type of air compressor
H23A62QDBE
Oil inpouring volume to air compressor
1628 cc
Type of air compressor protector
Cut off valve type
Φ9.52/Φ19.05
Four-way valve type
————
Dimension of air-in grid shaking flake
Maximum installation fall
Allowable
refrigerant
infusing
quantity
of
Bristol
Manufacturer of air compressor
————
————
Quantity /space of air-in grid shaking flake
————
Length of maximum connecting pipe of
unit
50 m
Total length of refrigerating pipe circuit
(liquid /gas)
————
Drainage pipe type
PVC
Length/ diameter of drainage pipe
Φ25(indoor)
Φ32(outdoor)
Evaporator：3 enter，3 go
Condensator：5 enter，5 go
Type /diameter
condensator pipe
Total area of evaporator
0.338 m2
Total area of condensator
0.92 m2
Temperature scope of evaporator
2~7 ℃
Temperature scope of condensator
43~60 ℃
Total fin quantity /its row number
Indoor：651/1
Outdoor：902/2
Thickness /space of fin
1.85/1.80 mm
Fin coefficient
————
Fin material kind
Aluminum foil
Type of capillary
TP2Y
Diameter /length of capillary
————
Protector type on control panel
See chapter 7.2
Temperature sensor type
10/23/5 KΩ
Real-time adjustment scope
————
Consumed power capacity
————
Type of accessories on computer board
See chapter 7.2
Type of segregator for gas and liquid
————
Rotating speed of air fan
Indoor：(odd)1050/960/870r/min
(Two)980/890/810 r/min
Outdoor：840 r/min
Type /quantity of air fan
Indoor unit：centrifugal type/3
Outdoor unit：axial flow type/2
Type of muffle
Φ40×2
Kind of adopted noise reduction material
daub
Air-out grid flake’s shaking frequency
————
Angle /distance of air ventilation
—/10 m
Maximum work pressure on heated side
2.8 MPa
Maximum work pressure on cold side
0.9 MPa
Indoor hygrometer temperature
32/23℃
Outdoor hygrometer temperature
43/26℃
Authentication certificate held
CE
Antisepsis screen(sterilization screen) type
and dimension
Resin net
Appearance feature of in and outdoor
unit of the product
See chapter 4
Shelter material
Dispersed electro-zinl coated
sheet
Product peculiarities
1） low noise
2） easy to instal
Product performance
See chapter 7
Flow value
condensator
of
evaporator
and
of
evaporator
and
TP2MΦ9.52
Type
HDU-42HA03/M(R1)
Appearance color (indoor/outdoor unit)
White/White
Cold producing capacity
42000 BTU/h
Heat producing capacity
46000BTU/h
Cold producing coefficient
8.4BTU/W
Heat producing coefficient
8.85BTU/W
Cold producing power
5000 W
Heat producing power
５２００　Ｗ
Ratio of energy generating to consuming
-----------
Defrosting capacity
5.0×10
New wind capacity
-3
3
m /h
New air inlet included
V
Negative hydronium quantity of negative
hydronium type machine
Operating current scope
————
Operating voltage scope
380~400
Operating temperature scope
-7~43 ℃
Operating fitting frequency
50 Hz
7.82-9.5 A
Temperature adjustment difference
±1 ℃
Type of refrigerant
R407C
Climate type
T1
Anti-static protection type
I
Indoor unit noises (cold producing)
42/36/30 dB(A)
Outdoor unit noises (cold producing)
64 dB(A)
Indoor unit noises (heat producing)
————
Outdoor unit noises (heat producing)
————
External dimension of indoor unit
1410×645×350 mm
External dimension of outdoor unit
948×340×1225 mm
Package dimension of indoor unit
1557×800×370 mm
Package dimension of outdoor unit
1050×440×1375 mm
Installation motherboard dimension
————
Layer restriction of laminated indoor and
outdoor unit
4/2
Net weight/gross weight of indoor unit
55/75 kg
Net weight/gross weight of outdoor unit
91/111 kg
30 m
Current-in side (indoor/outdoor)
————
Maximum installation fall
Allowable
refrigerant
infusing
quantity
of
3.8 kg
Maximum infusing quantity of refrigerant
---------
Cleanout frequency of filter
Once per month
Type of filter (filer screen)
XPE
Filtration efficiency
————
Dimension of filter (filter screen)
————
Type of air compressor
C-SBN373H8A
Oil inpouring volume to air compressor
1700ml
Type of air compressor protector
Cut off valve type
Φ9.52/Φ19.05
Four-way valve type
————
Dimension of air-in grid shaking flake
Manufacturer of air compressor
SANYO
————
————
Quantity /space of air-in grid shaking flake
————
Length of maximum connecting pipe of
unit
50 m
Total length of refrigerating pipe circuit
(liquid /gas)
————
Drainage pipe type
PVC
Length/ diameter of drainage pipe
Φ25(indoor)
Φ32(outdoor)
Evaporator：3 enter，3 go
Condensator：5 enter，5 go
Type /diameter
condensator pipe
Total area of evaporator
0.338 m2
Total area of condensator
0.92 m2
Temperature scope of evaporator
2~7 ℃
Temperature scope of condensator
43~60 ℃
Total fin quantity /its row number
Indoor：651/1
Outdoor：902/2
Thickness /space of fin
1.85/1.80 mm
Fin coefficient
————
Fin material kind
Aluminum foil
Type of capillary
TP2Y
Diameter /length of capillary
————
Protector type on control panel
See chapter 7.2
Temperature sensor type
10/23/5 KΩ
Real-time adjustment scope
————
Consumed power capacity
————
Type of accessories on computer board
See chapter 7.2
Type of segregator for gas and liquid
————
Rotating speed of air fan
Indoor：(odd)1050/960/870r/min
(Two)980/890/810 r/min
Outdoor：840 r/min
Type /quantity of air fan
Indoor unit：centrifugal type/3
Outdoor unit：axial flow type/2
Type of muffle
Φ40×2
Kind of adopted noise reduction material
daub
Air-out grid flake’s shaking frequency
————
Angle /distance of air ventilation
—/10 m
Maximum work pressure on heated side
2.8 MPa
Maximum work pressure on cold side
2.8MPa
Indoor hygrometer temperature
32/23℃
Outdoor hygrometer temperature
43/26℃
Authentication certificate held
CE
Antisepsis screen(sterilization screen) type
and dimension
Resin net
Appearance feature of in and outdoor
unit of the product
See chapter 4
Shelter material
Dispersed electro-zinl coated
sheet
Product peculiarities
1） low noise
2） easy to instal
Product performance
See chapter 7
Flow value
condensator
of
evaporator
and
of
evaporator
and
TP2MΦ9.52
Type
HDU-42H03/M
Appearance color (indoor/outdoor unit)
White/White
Cold producing capacity
42000 BTU/h
Heat producing capacity
46000 BTU/h
Cold producing coefficient
8.75
Heat producing coefficient
9.9
Heat producing power
4700 W
Ratio of energy generating to consuming
2.56/2.87
Cold producing power
4800 W
Defrosting capacity
5.0×10
-3
3
m /h
Negative hydronium quantity of negative
hydronium type machine
Operating current scope
New wind capacity
New air inlet included
Operating voltage scope
380~400
Operating temperature scope
-7~43 ℃
Operating fitting frequency
50 Hz
Temperature adjustment difference
±1 ℃
Type of refrigerant
R22
Climate type
T1
Anti-static protection type
I
V
————
7.82-9.5 A
Indoor unit noises (cold producing)
42/36/30 dB(A)
Outdoor unit noises (cold producing)
64 dB(A)
Indoor unit noises (heat producing)
42/36/30 dB(A)
Outdoor unit noises (heat producing)
64 dB(A)
External dimension of indoor unit
1410×645×350 mm
External dimension of outdoor unit
948×340×1225 mm
Package dimension of indoor unit
1557×800×370 mm
Package dimension of outdoor unit
1050×440×1375 mm
Installation motherboard dimension
————
Layer restriction of laminated indoor and
outdoor unit
4/2
Net weight/gross weight of indoor unit
55/75 kg
Net weight/gross weight of outdoor unit
91/111 kg
30 m
Current-in side (indoor/outdoor)
————
3.52 kg
Maximum infusing quantity of refrigerant
6.22 kg
Cleanout frequency of filter
Once per month
Type of filter (filer screen)
XPE
Filtration efficiency
————
Dimension of filter (filter screen)
————
Type of air compressor
H23A62QDBE
Manufacturer of air compressor
Bristol
Oil inpouring volume to air compressor
1628 cc
Type of air compressor protector
————
Cut off valve type
Φ9.52/Φ19.05
Four-way valve type
STF-0401
Dimension of air-in grid shaking flake
Maximum installation fall
Allowable
refrigerant
infusing
quantity
of
————
Quantity /space of air-in grid shaking flake
————
Length of maximum connecting pipe of
unit
50 m
Total length of refrigerating pipe circuit
(liquid /gas)
————
Drainage pipe type
PVC
Length/ diameter of drainage pipe
Φ25(indoor)
Φ32(outdoor)
Evaporator：3 enter，3 go
Condensator：5 enter，5 go
Type /diameter
condensator pipe
Flow value
condensator
of
evaporator
and
2
of
evaporator
and
TP2MΦ9.52
Total area of evaporator
0.338 m
Total area of condensator
0.92 m2
Temperature scope of evaporator
2~7 ℃
Temperature scope of condensator
43~60 ℃
Total fin quantity /its row number
Indoor：651/1
Outdoor：902/2
Thickness /space of fin
1.85/1.80 mm
Fin coefficient
————
Fin material kind
Aluminum foil
Type of capillary
TP2Y
Diameter /length of capillary
————
Protector type on control panel
See chapter 7.2
Temperature sensor type
10/23/5 KΩ
Real-time adjustment scope
————
Consumed power capacity
————
Type of accessories on computer board
See chapter 7.2
Type of segregator for gas and liquid
3.65 L
Rotating speed of air fan
Indoor：(odd)1050/960/870r/min
(Two)980/890/810 r/min
Outdoor：840 r/min
Type /quantity of air fan
Indoor unit：centrifugal type/3
Outdoor unit：axial flow type/2
Type of muffle
Φ40×2
Kind of adopted noise reduction material
daub
Air-out grid flake’s shaking frequency
————
Angle /distance of air ventilation
—/10 m
Maximum work pressure on heated side
2.8 MPa
Maximum work pressure on cold side
2.8 MPa
Indoor hygrometer temperature
Cold producing：27/19℃
Heat producing：20/—℃
Outdoor hygrometer temperature
Cold producing：35/24℃
Heat producing：7/6℃
Authentication certificate held
CE
Antisepsis screen(sterilization screen) type
and dimension
Resin net
Appearance feature of in and outdoor
unit of the product
See chapter 4
Shelter material
Dispersed electro-zinl coated
sheet
Product peculiarities
1） low noise
2） easy to instal
Product performance
See chapter 7
Type
HDU-36HA03/M(R1)
Appearance color (indoor/outdoor unit)
White/White
Cold producing capacity
36000 BTU/h
Heat producing capacity
38000BTU/h
Cold producing coefficient
2.8W/W
Cold producing power
3800 W
Defrosting capacity
5.0×10
New wind capacity
-3
Heat producing coefficient
3
m /h
New air inlet included
V
２．９Ｗ／Ｗ
Heat producing power
３８００　Ｗ
Ratio of energy generating to consuming
-----------
Negative hydronium quantity of negative
hydronium type machine
Operating current scope
————
Operating voltage scope
380~400
Operating temperature scope
-7~43 ℃
Operating fitting frequency
50 Hz
7.82-9.5 A
Temperature adjustment difference
±1 ℃
Type of refrigerant
R407C
Climate type
T1
Anti-static protection type
I
Indoor unit noises (cold producing)
42/36/30 dB(A)
Outdoor unit noises (cold producing)
64 dB(A)
Indoor unit noises (heat producing)
————
Outdoor unit noises (heat producing)
————
External dimension of indoor unit
1410×645×350 mm
External dimension of outdoor unit
948×340×1225 mm
Package dimension of indoor unit
1557×800×370 mm
Package dimension of outdoor unit
1050×440×1375 mm
Installation motherboard dimension
————
Layer restriction of laminated indoor and
outdoor unit
4/2
Net weight/gross weight of indoor unit
55/75 kg
Net weight/gross weight of outdoor unit
91/111 kg
30 m
Current-in side (indoor/outdoor)
————
Maximum installation fall
Allowable
refrigerant
infusing
quantity
of
3.8 kg
Maximum infusing quantity of refrigerant
---------
Cleanout frequency of filter
Once per month
Type of filter (filer screen)
XPE
Filtration efficiency
————
Dimension of filter (filter screen)
————
Type of air compressor
C-SBN373H8A
Oil inpouring volume to air compressor
1700ml
Type of air compressor protector
Cut off valve type
Φ9.52/Φ19.05
Four-way valve type
————
Dimension of air-in grid shaking flake
Manufacturer of air compressor
SANYO
————
————
Quantity /space of air-in grid shaking flake
————
Length of maximum connecting pipe of
unit
50 m
Total length of refrigerating pipe circuit
(liquid /gas)
————
Drainage pipe type
PVC
Length/ diameter of drainage pipe
Φ25(indoor)
Φ32(outdoor)
Evaporator：3 enter，3 go
Condensator：5 enter，5 go
Type /diameter
condensator pipe
Total area of evaporator
0.338 m2
Total area of condensator
0.92 m2
Temperature scope of evaporator
2~7 ℃
Temperature scope of condensator
43~60 ℃
Total fin quantity /its row number
Indoor：651/1
Outdoor：902/2
Thickness /space of fin
1.85/1.80 mm
Fin coefficient
————
Fin material kind
Aluminum foil
Type of capillary
TP2Y
Diameter /length of capillary
————
Protector type on control panel
See chapter 7.2
Temperature sensor type
10/23/5 KΩ
Real-time adjustment scope
————
Consumed power capacity
————
Type of accessories on computer board
See chapter 7.2
Type of segregator for gas and liquid
————
Rotating speed of air fan
Indoor：(odd)1050/960/870r/min
(Two)980/890/810 r/min
Outdoor：840 r/min
Type /quantity of air fan
Indoor unit：centrifugal type/3
Outdoor unit：axial flow type/2
Type of muffle
Φ40×2
Kind of adopted noise reduction material
daub
Air-out grid flake’s shaking frequency
————
Angle /distance of air ventilation
—/10 m
Maximum work pressure on heated side
2.8 MPa
Maximum work pressure on cold side
2.8MPa
Indoor hygrometer temperature
32/23℃
Outdoor hygrometer temperature
43/26℃
Authentication certificate held
CE
Antisepsis screen(sterilization screen) type
and dimension
Resin net
Appearance feature of in and outdoor
unit of the product
See chapter 4
Shelter material
Dispersed electro-zinl coated
sheet
Product peculiarities
1） low noise
2） easy to instal
Product performance
See chapter 7
Flow value
condensator
of
evaporator
and
of
evaporator
and
TP2MΦ9.52
Type
HDU-28C03/M
Appearance color (indoor/outdoor unit)
White/White
Cold producing capacity
28000 BTU/h
Heat producing capacity
————
Cold producing coefficient
6.8
Heat producing coefficient
————
Cold producing power
2600 W
Heat producing power
————
Ratio of energy generating to consuming
3.16
Negative hydronium quantity of negative
hydronium type machine
————
Defrosting capacity
3.0×10
New wind capacity
-3
3
m /h
New air inlet included
Operating voltage scope
220~230
Operating current scope
11.05-16.5A
Operating temperature scope
-7~43 ℃
V
Operating fitting frequency
50 Hz
Temperature adjustment difference
±1 ℃
Type of refrigerant
R22
Climate type
T1
Anti-static protection type
I
Indoor unit noises (cold producing)
35/32/29 dB(A)
Outdoor unit noises (cold producing)
58 dB(A)
Indoor unit noises (heat producing)
————
Outdoor unit noises (heat producing)
————
External dimension of indoor unit
990×650×300 mm
External dimension of outdoor unit
948×340×830 mm
Package dimension of indoor unit
1137×800×320 mm
Package dimension of outdoor unit
1050×440×979 mm
Installation motherboard dimension
————
Layer restriction of laminated indoor and
outdoor unit
4/2
Net weight/gross weight of indoor
unit
40/57 kg
Net weight/gross weight of outdoor unit
70/89 kg
Maximum installation fall
15 m
Current-in side (indoor/outdoor)
————
2.2 kg
Maximum infusing quantity of refrigerant
3.7 kg
Cleanout frequency of filter
Once per month
Type of filter (filer screen)
XPE
Filtration efficiency
————
Dimension of filter (filter screen)
————
Type of air compressor
ZR34K3-PFJ-522
Manufacturer of air compressor
1247 cc
Type of air compressor protector
Cut off valve type
Φ9.52/Φ15.88
Four-way valve type
————
Dimension of air-in grid shaking flake
Allowable
refrigerant
infusing
Oil inpouring
compressor
quantity
volume
to
of
air
Copeland Compressor Inc.of
USA
32HM50-63,Dezhou
Instrument Factory
————
Quantity /space of air-in grid shaking flake
————
Length of maximum connecting pipe
of unit
30 m
Total length of refrigerating pipe circuit
(liquid /gas)
————
Drainage pipe type
PVC
Length/ diameter of drainage pipe
Φ25(indoor)
Φ32(outdoor)
Evaporator：6 enter，6 return
Condensator：10 enter,10 return
Type /diameter
condensator pipe
Total area of evaporator
0.221 m2
Total area of condensator
0.62 m2
Temperature scope of evaporator
2~7 ℃
Temperature scope of condensator
43~60 ℃
Total fin quantity /its row number
Indoor：440/1
Outdoor：451/2
Thickness /space of fin
1.85/1.80 mm
Fin coefficient
————
Fin material kind
Aluminum foil
Type of capillary
TP2Y
Diameter /length of capillary
————
Protector type on control panel
See chapter 7.2
Temperature sensor type
10/23/5 KΩ
Real-time adjustment scope
————
Consumed power capacity
————
Type of accessories on computer
board
See chapter 7.2
Type of segregator for gas and liquid
2.0 L
Rotating speed of air fan
Indoor：980/890/810 r/min
Outdoor：840 r/min
Type /quantity of air fan
Indoor unit：centrifugal type/2
Outdoor unit：axial flow type/1
Type of muffle
Φ40×2
Kind of adopted noise reduction material
daub
Air-out grid flake’s shaking frequency
————
Angle /distance of air ventilation
—/10 m
Maximum work pressure on heated
side
2.8 MPa
Maximum work pressure on cold side
0.8 MPa
Indoor hygrometer temperature
32/23℃
Outdoor hygrometer temperature
43/26℃
Authentication certificate held
CE
Antisepsis screen(sterilization screen) type
and dimension
Resin net
Appearance feature of in and outdoor
unit of the product
See chapter 4
Shelter material
Dispersed electro-zinl coated
sheet
Product peculiarities
1） low noise
2） easy to instal
Product performance
See chapter 7
Flow value
condensator
of
evaporator
and
of
evaporator
and
TP2MΦ9.52
Type
HDU-28HA03/M(R1)
Appearance color (indoor/outdoor unit)
White/White
Cold producing capacity
28000 BTU/h
Heat producing capacity
30000 BTU/h
Cold producing coefficient
2.4W/W
Heat producing coefficient
2.8W/W
Cold producing power
3400 W
Heat producing power
3200 W
Defrosting capacity
3.0×10
Ratio of energy generating to consuming
------------
Negative hydronium quantity of negative
hydronium type machine
————
New wind capacity
-3
3
m /h
New air inlet included
Operating current scope
5.4-8.0A
Operating temperature scope
Operating voltage scope
-7~43 ℃
380-400 V
Operating fitting frequency
50 Hz
Temperature adjustment difference
±1 ℃
Type of refrigerant
R407C
Climate type
T1
Anti-static protection type
I
Indoor unit noises (cold producing)
35/32/29 dB(A)
Outdoor unit noises (cold producing)
58 dB(A)
Indoor unit noises (heat producing)
35/32/29 dB(A)
Outdoor unit noises (heat producing)
58 dB(A)
External dimension of indoor unit
990×650×300 mm
External dimension of outdoor unit
948×340×830 mm
Package dimension of indoor unit
1137×800×320 mm
Package dimension of outdoor unit
1050×440×979 mm
Installation motherboard dimension
————
Layer restriction of laminated indoor and
outdoor unit
4/2
Net weight/gross weight of indoor
unit
40/57 kg
Net weight/gross weight of outdoor unit
74/89 kg
Maximum installation fall
15 m
Current-in side (indoor/outdoor)
————
2.62kg
Maximum infusing quantity of refrigerant
3.9 kg
Cleanout frequency of filter
Once per month
Type of filter (filer screen)
XPE
Filtration efficiency
————
Dimension of filter (filter screen)
————
Allowable
refrigerant
infusing
quantity
of
Type of air compressor
Oil inpouring
compressor
volume
ZR40K3E-TFD-522
to
air
Copeland Compressor Inc.of
USA
32HM50-63,Dezhou
Instrument Factory
Manufacturer of air compressor
1247 cc
Type of air compressor protector
Cut off valve type
Φ9.52/Φ15.88
Four-way valve type
STF-0203
Dimension of air-in grid shaking flake
————
Quantity /space of air-in grid shaking flake
————
Length of maximum connecting pipe
of unit
50 m
Total length of refrigerating pipe circuit
(liquid /gas)
————
Drainage pipe type
PVC
Length/ diameter of drainage pipe
Φ25(indoor)
Φ32(outdoor)
Evaporator：6 enter，6 return
Condensator：10 enter,10 return
Type /diameter
condensator pipe
Total area of evaporator
0.221 m2
Total area of condensator
0.62 m2
Temperature scope of evaporator
2~7 ℃
Temperature scope of condensator
43~60 ℃
Total fin quantity /its row number
Indoor：440/1
Outdoor：451/2
Thickness /space of fin
1.85/1.80 mm
Fin coefficient
————
Fin material kind
Aluminum foil
Type of capillary
TP2Y
Diameter /length of capillary
————
Protector type on control panel
See chapter 7.2
Temperature sensor type
10/23/5 KΩ
Real-time adjustment scope
————
Consumed power capacity
————
Type of accessories on computer
board
See chapter 7.2
Type of segregator for gas and liquid
2.0 L
Rotating speed of air fan
Indoor：980/890/810 r/min
Outdoor：840 r/min
Type /quantity of air fan
Indoor unit：centrifugal type/2
Outdoor unit：axial flow type/1
Type of muffle
Φ40×2
Kind of adopted noise reduction material
daub
Air-out grid flake’s shaking frequency
————
Angle /distance of air ventilation
—/10 m
Maximum work pressure on heated
side
2.8 MPa
Maximum work pressure on cold side
2.8 MPa
Indoor hygrometer temperature
Cold producing： 32/23℃
Heat producing：27/—℃
Outdoor hygrometer temperature
Cold producing：43/26℃
Heat producing：24/18℃
Authentication certificate held
CE
Antisepsis screen(sterilization screen) type
and dimension
Resin net
Appearance feature of in and outdoor
unit of the product
See chapter 4
Shelter material
Dispersed electro-zinl coated
sheet
Product peculiarities
1） low noise
2） easy to instal
Product performance
See chapter 7
Flow value
condensator
of
evaporator
and
of
evaporator
and
TP2MΦ9.52
Type
HDU-28H03/M
Appearance color (indoor/outdoor unit)
White/White
Cold producing capacity
28000 BTU/h
Heat producing capacity
29000 BTU/h
Cold producing coefficient
6.8
Heat producing coefficient
6.6
Cold producing power
2600 W
Heat producing power
2500 W
Defrosting capacity
3.0×10
Ratio of energy generating to consuming
3.16/3.40
Negative hydronium quantity of negative
hydronium type machine
————
New wind capacity
-3
3
m /h
New air inlet included
Operating voltage scope
220~230
Operating current scope
11.05-19.5A
Operating temperature scope
-7~43 ℃
V
Operating fitting frequency
50 Hz
Temperature adjustment difference
±1 ℃
Type of refrigerant
R22
Climate type
T1
Anti-static protection type
I
Indoor unit noises (cold producing)
35/32/29 dB(A)
Outdoor unit noises (cold producing)
58 dB(A)
Indoor unit noises (heat producing)
35/32/29 dB(A)
Outdoor unit noises (heat producing)
58 dB(A)
External dimension of indoor unit
990×650×300 mm
External dimension of outdoor unit
948×340×830 mm
Package dimension of indoor unit
1137×800×320 mm
Package dimension of outdoor unit
1050×440×979 mm
Installation motherboard dimension
————
Layer restriction of laminated indoor and
outdoor unit
4/2
Net weight/gross weight of indoor
unit
40/57 kg
Net weight/gross weight of outdoor unit
74/89 kg
Maximum installation fall
15 m
Current-in side (indoor/outdoor)
————
2.4 kg
Maximum infusing quantity of refrigerant
3.9 kg
Cleanout frequency of filter
Once per month
Type of filter (filer screen)
XPE
Filtration efficiency
————
Dimension of filter (filter screen)
————
Type of air compressor
ZR34K3-PFJ-522
Manufacturer of air compressor
1247 cc
Type of air compressor protector
Cut off valve type
Φ9.52/Φ15.88
Four-way valve type
STF-0203
Dimension of air-in grid shaking flake
Allowable
refrigerant
infusing
Oil inpouring
compressor
quantity
volume
to
of
air
Copeland Compressor Inc.of
USA
32HM50-63,Dezhou
Instrument Factory
————
Quantity /space of air-in grid shaking flake
————
Length of maximum connecting pipe
of unit
50 m
Total length of refrigerating pipe circuit
(liquid /gas)
————
Drainage pipe type
PVC
Length/ diameter of drainage pipe
Φ25(indoor)
Φ32(outdoor)
Evaporator：6 enter，6 return
Condensator：10 enter,10 return
Type /diameter
condensator pipe
Total area of evaporator
0.221 m2
Total area of condensator
0.62 m2
Temperature scope of evaporator
2~7 ℃
Temperature scope of condensator
43~60 ℃
Total fin quantity /its row number
Indoor：440/1
Outdoor：451/2
Thickness /space of fin
1.85/1.80 mm
Fin coefficient
————
Fin material kind
Aluminum foil
Type of capillary
TP2Y
Diameter /length of capillary
————
Protector type on control panel
See chapter 7.2
Temperature sensor type
10/23/5 KΩ
Real-time adjustment scope
————
Consumed power capacity
————
Type of accessories on computer
board
See chapter 7.2
Type of segregator for gas and liquid
2.0 L
Rotating speed of air fan
Indoor：980/890/810 r/min
Outdoor：840 r/min
Type /quantity of air fan
Indoor unit：centrifugal type/2
Outdoor unit：axial flow type/1
Type of muffle
Φ40×2
Kind of adopted noise reduction material
daub
Air-out grid flake’s shaking frequency
————
Angle /distance of air ventilation
—/10 m
Maximum work pressure on heated
side
2.8 MPa
Maximum work pressure on cold side
2.8 MPa
Indoor hygrometer temperature
Cold producing： 32/23℃
Heat producing：27/—℃
Outdoor hygrometer temperature
Cold producing：43/26℃
Heat producing：24/18℃
Authentication certificate held
CE
Antisepsis screen(sterilization screen) type
and dimension
Resin net
Appearance feature of in and outdoor
unit of the product
See chapter 4
Shelter material
Dispersed electro-zinl coated
sheet
Product peculiarities
1） low noise
2） easy to instal
Product performance
See chapter 7
Flow value
condensator
of
evaporator
and
of
evaporator
and
TP2MΦ9.52
3.Specifications of Products
Model
Structural features
Refrigerating capacity
Voltage
Product Series
External appearance
Quality certification
Remote controller
Refrigerant
Type of climate
Dimensions of indoor unit
Dimensions of outdoor unit
Packed dimensions(indoor u.)
Packed dimensions(indoor u.)
Packing list
Model
Structural features
Refrigerating capacity
Voltage
Product Series
External appearance
Quality certification
Remote controller
Refrigerant
Type of climate
Dimensions of indoor unit
Dimensions of outdoor unit
Packed dimensions(indoor u.)
Packed dimensions(indoor u.)
Packing list
HDU-42H03/M
HDU-42C03/M
HDU-28H03/M HDU-28C03/M
compact structure,using pump to drain water
42000BTU/h
28000BTU/h
3N~ 380-400V
low electrostatic level
1PH 220-230V
equipped with decorated panel
CE
wire controller
R22
T1
990 650 300mm
948x340x830mm
1040 800 320mm
1050x440x980mm
1410 645 350mm
948x 340 x1225mm
1557 800 370mm
1050x440x1375mm
HDU-42HA03/M(R1)
HDU-36HA03/M(R1)
HDU-28HA03/M(R1)
compact structure,using pump to drain water
42000BTU/h
36000BTU/h
28000BTU/h
3N~ 380-400V
low electrostatic level
equipped with decorated panel
CE
wire controller
R407C
T1
1410 645 350mm
948x 340 x1225mm
1557 800 370mm
1050x440x1375mm
990 650 300mm
948x340x830mm
1040 800 320mm
1050x440x980mm
A. Capability modification curver
(1)HDU-42H(C)03/M HDU-42HA03/M(R1) HDU-36HA03/M(R1)(Cold producing/Heat producing)
Alteration curve of indoor air wet-bulb temperature
13
11
9
14
18
22
26
30
Indoor air wet-bulb temperature(
capability modification(kw)
capability modification(kw)
15
Alteration curve of outdoor air dry-bulb temperature
15
9
20
)
30
35
Outdoor air dry-bulb temperature(
Alteration curve of indoor air dry-bulb temperature
40
43
)
Alteration curve of outdoor air wet-bulb temperature
15
capability modification(kw)
capability modification(kw)
15
13
13
11
9
10
15
20
12
11
8
7
-10
-5
0
5
10
15
(2)HDU-28H(C)03/M HDU-28HA03/M(R1)(Cold producing/Heat producing)
Alteration curve of indoor air
wet-bulb temperature
Alteration curve of outdoor air dry-bulb temperature
capability modification(kw)
capability modification(kw)
1.1
1.1
0.9
0.7
0.5
0.5
14
18
22
26
30
Indoor air wet-bulb temperature(
20
)
0.7
0.6
10
15
20
40
43
)
Alteration curve of outdoor air wet-bulb temperature
capability modification(kw)
capability modification(kw)
0.8
35
Outdoor air dry-bulb temperature(
Alteration curve of indoor air
dry-bulb temperature
0.9
30
0.9
0.6
-10
-5
0
5
10
15
B.Specification brochure of the product
Ambient temperature range for cooling operation:
35
30
25
unload period
40
consecutive operation
outdoor ambient temperature ( C)
50
20
15
0
15
20
23 25 28
indoor ambient temperature ( C)
30
Ambient temperature range for heating operation
10
5
0
consecutive operation
15
unload period
outdoor ambient temperature ( C)
20
-5
-10
5
7
10
15
20
indoor ambient temperature ( C)
25 27
30
C. Airflow volume/External static pressure
HDU-42HA03/M(R1) OR HDU-36HA03/M(R1)
HDU-28HA03/M(R1)
D. Performance curves
Model: HDU-28C03/M HDU-28H03/M HDU-28HA03/M(R1)
Cool capacity graph
12
Capacity(KW)
10
20
22
25
27
30
32
8
6
4
2
Indoor
0
-7
5
15
25
35
43
DB(
)
Outdoor DB( )
EER graph
5
EER
4
20
22
25
27
30
32
3
2
Indoor
1
DB(
-7
5
15
25
Outdoor DB( )
35
43
)
Heat capacity graph (only heat type available)
12
11
16
18
20
22
24
26
28
Capacity(KW)
10
9
8
7
6
5
Indoor
4
DB(
-7
-5
0
7
10
)
15
Outdoor DB( )
COP graph (only heat type available)
4
16
18
20
22
24
26
28
COP
3
2
Indoor
1
DB(
-7
-5
0
7
Outdoor DB( )
10
15
)
Model: HDU-36HA03/M(R1)
Cool capacity graph
14
Capacity(KW)
13
20
22
25
27
30
32
12
11
10
9
8
7
Indoor
6
DB(
-7
5
15
25
35
)
43
Outdoor DB( )
EER graph
4
3.5
20
22
25
27
30
32
EER
3
2.5
2
1.5
Indoor
DB(
1
-7
5
15
25
Outdoor DB(
35
)
43
)
Heat capacity graph (only heat type available)
13
Capacity(KW)
12
16
18
20
22
24
26
28
11
10
9
8
7
Indoor
6
DB(
-7
-5
0
6
10
)
15
Outdoor DB( )
COP graph (only heat type available)
4
3.5
16
18
20
22
24
26
28
COP
3
2.5
2
1.5
Indoor
1
DB(
-7
-5
0
6
Outdoor DB( )
10
15
)
Model: HDU-42C03/M HDU-42H03/M HDU-42HA03/M(R1) HDU-36HA03/M(R1)
Capacity(KW)
Cool capacity graph
18
16
14
12
10
8
6
4
2
0
20
22
25
27
30
32
Indoor
DB(
-7
5
15
25
35
)
43
Outdoor DB( )
EER graph
5
EER
4.5
4
20
22
25
27
30
32
3.5
3
2.5
2
1.5
1
Indoor
-7
5
15
25
Outdoor DB(
35
)
43
DB(
)
Heat capacity graph (only heat type available)
16
15
16
18
20
22
24
26
28
Capacity(KW)
14
13
12
11
10
9
Indoor
DB(
8
-7
-5
0
6
Outdoor DB(
10
)
15
)
COP graph
4
16
18
20
22
24
26
28
COP
3
2
Indoor
1
DB(
-7
-5
0
6
Outdoor DB( )
10
15
)
Resistance numerical value（KΩ）
300
290
280
270
260
250
240
230
220
210
200
190
180
170
160
150
140
130
120
110
100
90
80
70
60
50
40
30
20
10
0
-20℃
-18℃
-16℃
-14℃
-12℃
Sensor R/T
-10℃
-8℃
-6℃
-4℃
-2℃
0℃
2℃
4℃
6℃
8℃
10℃
12℃
14℃
16℃
18℃
20℃
22℃
24℃
26℃
28℃
30℃
32℃
34℃
36℃
R25=23KΩ
38℃
40℃
42℃
44℃
Temperature（℃）
46℃
48℃
50℃
52℃
54℃
56℃
58℃
60℃
E. Sensor graph
F.3HP Air Velocity distribution +Temperature distribution
a. Cooling / Air Velocity Distribution
Model:HDU-28C03/M HDU-28H03/M HDU-28HA03/M(R1)
Cooling
Blowy angle:5
Air Velocity Distribution
2.4
1.8
0.5
0
5.5
b. Cooling / Temperature Distribution
Model:HDU-28C03/M HDU-28H03/M HDU-28HA03/M(R1)
Cooling
Blowy angle:5
Temperature Distribution
2.4
1.8
22
25
27
0
5.5
c. Heating / Air Velocity Distribution
Model:HDU-28C03/M HDU-28H03/M HDU-28HA03/M(R1)
Heating
Blowy angle:45
Air velocity Distribution
2.4
1.8
1.0
0.5
0
5.5
d. Heating / Temperature Distribution
Model:HDU-28C03/M HDU-28H03/M HDU-28HA03/M(R1)
Heating
Blowy angle:45
Temperature Distribution
2.4
1.8
27
25
0
22
5.5
G. 5HP Air Velocity distribution +Temperature distribution
a. Cooling / Air Velocity Distribution
Model:HDU-42C03/M HDU-42H03/M HDU-42HA03/M(R1) HDU-36HA03/M(R1)
Cooling
Blowy angle:5
Air Velocity Distribution
2.4
1.8
0.5
0
5.5
b. Cooling / Temperature Distribution
Model:HDU-42C03/M HDU-42H03/M HDU-42HA03/M(R1) HDU-36HA03/M(R1)
Cooling
Blowy angle:5
Temperature Distribution
2.4
1.8
22
0
25
27
5.5
c. Heating / Air Velocity Distribution
Model:HDU-42C03/M HDU-42H03/M HDU-42HA03/M(R1) HDU-36HA03/M(R1)
Heating
Blowy angle:45
Air velocity Distribution
2.4
1.8
1.0
0.5
0
5.5
d. Heating / Temperature Distribution
Model:HDU-42C03/M HDU-42H03/M HDU-42HA03/M(R1) HDU-36HA03/M(R1)
Heating
Blowy angle:45
Temperature Distribution
2.4
1.8
27
0
25
22
5.5
4.Names, Dimensions and Functions of Main Parts and Accessories
Indoor unit: 1. HDU-42H03/M HDU-42C03/M
2.HDU-28H03/M HDU-28C03/M
HDU-42HA03/M(R1) HDU-36HA03/M(R1)
air duct
HDU-28HA03/M(R1)
air duct
Outdoor unit: 1. HDU-42H03/M HDU-42C03/M HDU-42HA03/M(R1) HDU-36HA03/M(R1)
Air inlet
Air outlet
Compressor (inside)
2.HDU-28H03/M HDU-28C03/M HDU-28HA03/M(R1)
Air inlet
Air outlet
Compressor (inside)
5. Explosive View and Detailed List of Parts
Model:HDU-42H03/M HDU-42C03/M HDU-42HA03/M(R1) HDU-36HA03/M(R1)
Indoor
Model：HDU-42H03/M HDU-42HA03/M(R1) HDU-36HA03/M(R1)
Indoor：
N0.
Name of part
Specialized
NO.
N0.
Name of part
Specialized
NO.
1
Guard plate 1
1101223
24
Terminal board
4000151
2
Guard plate 2
1101226
25
Fan capacitor
3600237
3
Evaporator assembly
0400184
26
Fan capacitor
3600134
4
Right fixing plate assembly
0100744
27
Electrical box cover assembly
0100859
5
Supporting plate assembly
0100807
28
Fixing bolt
5002256
6
Seal ring for scroll case
1301988
29
W ater pump fixing stand
1309785
7
Centrifugal fan
2331089
30
Damping pad
17511246
8
Cushion
17621153
31
Dual shaft electric motor
3000250
9
Cushion
17621151
32
Water pump motor
3000197
10
Cushion
17341291
33
Floater fixing stand
1301786
11
Air outlet
14311066
34
Water drain pipe assembly
0900093
12
Cushion
17341292
35
Connecting plate 2
1301783
13
Base platee assembly
0100742
36
Water pump support
1301784
14
Cushion
17341156
37
Connecting plate 1
1301782
15
Chshion
17341269
38
Connecting plate 1
3400076
16
Long fixing tendon
1101228
39
Fixed handle 1
1301789
17
Enclosure
1101224
40
Fixed handle 2
1301790
18
Inlet wind connect frame
1101225
41
Single-shaft motor
3000251
19
Transformer
3800005
42
Scroll case
1101205
20
Transformer case assembly
0100858
43
Left fixing plate assembly
0100743
21
Rubber ring
1452909
44
W ater collecting pan assembly
0900094
22
Rubber ring
1452861
45
Cushion
17621350
23
PCB
0010400132
Model：HDU-42C03/M
Indoor：
N0.
Name of part
Specialized
NO.
N0.
Name of part
Specialized
NO.
1
Guard plate 1
1101223
24
Terminal board
4000151
2
Guard plate 2
1101226
25
Fan capacitor
3600237
3
Evaporator assembly
0400184
26
Fan capacitor
3600134
4
Right fixing plate assembly
0100744
27
Electrical box cover assembly
0100859
5
Supporting plate assembly
0100807
28
Fixing bolt
5002256
6
Seal ring for scroll case
1301988
29
W ater pump fixing stand
1309785
7
Centrifugal fan
2331089
30
Damping pad
17511246
8
Cushion
17621153
31
Dual shaft electric motor
3000250
9
Cushion
17621151
32
Water pump motor
3000197
10
Cushion
17341291
33
Floater fixing stand
1301786
11
Air outlet
14311066
34
Water drain pipe assembly
0900093
12
Cushion
17341292
35
Connecting plate 2
1301783
13
Base platee assembly
0100742
36
Water pump support
1301784
14
Cushion
17341156
37
Connecting plate 1
1301782
15
Chshion
17341269
38
Connecting plate 1
3400076
16
Long fixing tendon
1101228
39
Fixed handle 1
1301789
17
Enclosure
1101224
40
Fixed handle 2
1301790
18
Inlet wind connect frame
1101225
41
Single-shaft motor
3000251
19
Transformer
3800005
42
Scroll case
1101205
20
Transformer case assembly
0100858
43
Left fixing plate assembly
0100743
21
Rubber ring
1452909
44
W ater collecting pan assembly
0900094
22
Rubber ring
1452861
45
Cushion
17621350
23
PCB
0010400136
Outdoor
Model: HDU-42H03/M HDU-42C03/M HDU-42HA03/M(R1) HDU-36HA03/M(R1)
1
2
3
4
5
41
42
43
6
7
8
9
10
40 39
38
11
12
13
14
15 16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
Model：HDU-42H03/M
Outdoor：
N0.
Name of part
Specialized
NO.
N0.
Name of part
Specialized
NO.
1
Screw
5002108
23
Right side plate gasket
17621214
2
Front guard net
1236028
24
Heat exchanger guard net
1303642
3
Screw
5002035
25
Rubber block
1752289
4
Left front panel
1301640
26
Handle
1436160
5
Acorn nut
5102027
27
Fixing plate
1301465
6
Axial-flow type fan
5402022
28
4-way valve
2500117
7
Electric motor
3000244
29
Liquid reservoir
2000175
8
Motor support
1301645
30
2-way shut-off valve
2500115
9
Vertical foam slice
17421215
31
3-way shut-off valve
2500116
10
Vertical slice
1301469
32
Return air pipe assembly
11
Damping cushion
17341207
33
Flange nut
12
Upper heat exchanger assembly
0010700713
34
Compressor
2000195
13
Temperature sensor clamp
5736055
35
Shock-resisting sleeve
17621208
14
Partition plate
1301468
36
Valve seat
1301762
15
Electrical case assembly
0010800609
37
Base plate assembly
0100735
16
Partition plate pad
17561212
38
Support
1431952
17
Air discharge pipe assembly
0500721
39
Screw
5002103
18
Air collecting pipe assembly
0010700231
40
Heat exchanger assembly
19
Top cover
1101034
41
Small cover plate
1301464
20
Upper fluid collecting pipe assembly
0500522
42
Maintenance panel
1301707
21
Special screw
5002152
43
Handle
1436160
22
Right side plate
1101197
0500714
5102050
0010700713
Model：HDU-42C03/M
Outdoor：
N0.
Name of part
Specialized
NO.
N0.
Name of part
Specialized
NO.
1
Screw
5002108
23
Right side plate gasket
17621214
2
Front guard net
1236028
24
Heat exchanger guard net
1303642
3
Screw
5002035
25
Rubber block
1752289
4
Left front panel
1301640
26
Handle
1436160
5
Acorn nut
5102027
27
Fixing plate
1301465
6
Axial-flow type fan
5402022
28
---------------
----------
7
Electric motor
3000244
29
Liquid reservoir
2000175
8
Motor support
1301645
30
2-way shut-off valve
2500115
9
Vertical foam slice
17421215
31
3-way shut-off valve
2500116
10
Vertical slice
1301469
32
Return air pipe assembly
0500714
11
Damping cushion
17341207
33
Flange nut
12
Upper heat exchanger assembly
0010700713
34
Compressor
2000174
13
Temperature sensor clamp
5736055
35
Shock-resisting sleeve
17621208
14
Partition plate
1301468
36
Valve seat
1301762
15
Electrical case assembly
0010800339
37
Base plate assembly
0100735
16
Partition plate pad
17561212
38
Support
1431952
17
Air discharge pipe assembly
0500713
39
Screw
5002103
18
Air collecting pipe assembly
0010700231
40
Heat exchanger assembly
19
Top cover
1101034
41
Small cover plate
1301464
20
Upper fluid collecting pipe assembly
0500522
42
Maintenance panel
1301707
21
Special screw
5002152
43
Handle
1436160
22
Right side plate
1101197
5102050
0010700713
Model：HDU-42HA03/M(R1)
Outdoor：
N0.
Name of part
Specialized
NO.
N0.
Name of part
Specialized
NO.
1
Screw
5002108
23
Right side plate gasket
17621214
2
Front guard net
1236028
24
Heat exchanger guard net
1303642
3
Screw
5002035
25
Rubber block
1752289
4
Left front panel
1301640
26
Handle
1436160
5
Acorn nut
5102027
27
Fixing plate
1301465
6
Axial-flow type fan
5402022
28
4-way valve
2500151
7
Electric motor
3000244
29
Liquid reservoir
2000175
8
Motor support
1301645
30
2-way shut-off valve
2500149
9
Vertical foam slice
17421215
31
3-way shut-off valve
2500150
10
Vertical slice
1301469
32
Return air pipe assembly
11
Damping cushion
17341207
33
Flange nut
12
Upper heat exchanger assembly
001A0400164
34
Compressor
0010750471
13
Temperature sensor clamp
5736055
35
Shock-resisting sleeve
17621208
14
Partition plate
1301468
36
Valve seat
0010450235
15
Electrical case assembly
0010800609
37
Base plate assembly
0100735
16
Partition plate pad
17561212
38
Support
1431952
17
Air discharge pipe assembly
0500721
39
Screw
5002103
18
Air collecting pipe assembly
0010700231
40
Heat exchanger assembly
19
Top cover
1101034
41
Small cover plate
1301464
20
Upper fluid collecting pipe assembly
0500522
42
Maintenance panel
1301707
21
Special screw
5002152
43
Handle
1436160
22
Right side plate
1101197
0500714
5102050
001A0400183
Model：HDU-36HA03/M(R1)
Outdoor：
N0.
Name of part
Specialized
NO.
N0.
Name of part
Specialized
NO.
1
Screw
5002108
23
Right side plate gasket
17621214
2
Front guard net
1236028
24
Heat exchanger guard net
1303642
3
Screw
5002035
25
Rubber block
1752289
4
Left front panel
1301640
26
Handle
1436160
5
Acorn nut
5102027
27
Fixing plate
1301465
6
Axial-flow type fan
5402022
28
4-way valve
2500151
7
Electric motor
3000244
29
Liquid reservoir
2000175
8
Motor support
1301645
30
2-way shut-off valve
2500149
9
Vertical foam slice
17421215
31
3-way shut-off valve
2500150
10
Vertical slice
1301469
32
Return air pipe assembly
11
Damping cushion
17341207
33
Flange nut
12
Upper heat exchanger assembly
001A0400164
34
Compressor
0010750196
13
Temperature sensor clamp
5736055
35
Shock-resisting sleeve
17621208
14
Partition plate
1301468
36
Valve seat
0010450235
15
Electrical case assembly
0010800518
37
Base plate assembly
0010150056
16
Partition plate pad
17561212
38
Support
1431952
17
Air discharge pipe assembly
0010750198
39
Screw
5002103
18
Air collecting pipe assembly
0010700231
40
Heat exchanger assembly
001A0400183
19
Top cover
1101034
41
Small cover plate
1301464
20
Upper fluid collecting pipe assembly
0500522
42
Maintenance panel
1301707
21
Special screw
5002152
43
Handle
1436160
22
Right side plate
1101197
0010750042
5102050
Model：HDU-28H03/M
Iutdoor：
HDU-28C03/M
HDU-28HA03/M(R1)
Model：HDU-28H03/M
Indoor：
N0.
Name of part
Specialized
NO.
N0.
Name of part
Specialized
NO.
1
Guard plate 1
0010100223
23
PCB
3300351
2
Guard plate 2
0010100228
24
Terminal board
4000151
3
Evaporator assembly
0010700742
25
Fan capacitor
3600134
4
Right fixing plate assembly
0010800106
26
Electrical box cover assembly
0100859
5
Supporting plate assembly
0010100016
27
Fixing bolt
5002256
6
Seal ring for scroll case
1301988
28
W ater pump fixing stand
1309785
7
Centrifugal fan
2331089
29
Damping pad
17511246
8
Cushion
17621153
30
Dual shaft electric motor
3000250
9
Cushion
0010200120
31
Water pump motor
3000197
10
Cushion
17341291
32
Floater fixing stand
1301786
11
Air outlet
14311066
33
Water drain pipe assembly
0900093
12
Cushion
17341292
34
Connecting plate 2
1301783
13
Base platee assembly
0010800155
35
Water pump support
1301784
14
Cushion
0010200121
36
Connecting plate 1
1301782
15
Chshion
0010200122
37
Connecting plate 1
3400076
16
Long fixing tendon
0010100224
38
Fixed handle 1
1301789
17
Enclosure
0010100226
39
Fixed handle 2
1301790
18
Inlet wind connect frame
0010100227
40
Scroll case
1101205
19
Transformer
3800005
41
Left fixing plate assembly
0100743
20
Transformer case assembly
0100858
42
W ater collecting pan assembly
0900094
21
Rubber ring
1452909
43
Cushion
17621350
22
Rubber ring
1452861
Model：HDU-28C03/M
Indoor：
N0.
Name of part
Specialized
NO.
N0.
Name of part
Specialized
NO.
1
Guard plate 1
0010100223
23
PCB
0010400132
2
Guard plate 2
0010100228
24
Terminal board
4000151
3
Evaporator assembly
0010700742
25
Fan capacitor
3600134
4
Right fixing plate assembly
0010800106
26
Electrical box cover assembly
0100859
5
Supporting plate assembly
0010100016
27
Fixing bolt
5002256
6
Seal ring for scroll case
1301988
28
W ater pump fixing stand
1309785
7
Centrifugal fan
2331089
29
Damping pad
17511246
8
Cushion
17621153
30
Dual shaft electric motor
3000250
9
Cushion
0010200120
31
Water pump motor
3000197
10
Cushion
17341291
32
Floater fixing stand
1301786
11
Air outlet
14311066
33
Water drain pipe assembly
0900093
12
Cushion
17341292
34
Connecting plate 2
1301783
13
Base platee assembly
0010800155
35
Water pump support
1301784
14
Cushion
0010200121
36
Connecting plate 1
1301782
15
Chshion
0010200122
37
Connecting plate 1
3400076
16
Long fixing tendon
0010100224
38
Fixed handle 1
1301789
17
Enclosure
0010100226
39
Fixed handle 2
1301790
18
Inlet wind connect frame
0010100227
40
Scroll case
1101205
19
Transformer
3800005
41
Left fixing plate assembly
0100743
20
Transformer case assembly
0100858
42
W ater collecting pan assembly
0900094
21
Rubber ring
1452909
43
Cushion
17621350
22
Rubber ring
1452861
Model：HDU-28H03/M(R1)
Indoor：
N0.
Name of part
Specialized
NO.
N0.
Name of part
Specialized
NO.
1
Guard plate 1
0010100223
23
PCB
3300351
2
Guard plate 2
0010100228
24
Terminal board
4000151
3
Evaporator assembly
0010750298
25
Fan capacitor
3600134
4
Right fixing plate assembly
0010800106
26
Electrical box cover assembly
0100859
5
Supporting plate assembly
0010100016
27
Fixing bolt
5002256
6
Seal ring for scroll case
1301988
28
W ater pump fixing stand
1309785
7
Centrifugal fan
2331089
29
Damping pad
17511246
8
Cushion
17621153
30
Dual shaft electric motor
3000250
9
Cushion
0010200120
31
Water pump motor
3000197
10
Cushion
17341291
32
Floater fixing stand
1301786
11
Air outlet
14311066
33
Water drain pipe assembly
0900093
12
Cushion
17341292
34
Connecting plate 2
1301783
13
Base platee assembly
0010800155
35
Water pump support
1301784
14
Cushion
0010200121
36
Connecting plate 1
1301782
15
Chshion
0010200122
37
Connecting plate 1
3400076
16
Long fixing tendon
0010100224
38
Fixed handle 1
1301789
17
Enclosure
0010100226
39
Fixed handle 2
1301790
18
Inlet wind connect frame
0010100227
40
Scroll case
1101205
19
Transformer
3800005
41
Left fixing plate assembly
0100743
20
Transformer case assembly
0100858
42
W ater collecting pan assembly
0900094
21
Rubber ring
1452909
43
Cushion
17621350
22
Rubber ring
1452861
Outdoor
Model: HDU-28H03/M HDU-28C03/M HDU-28HA03/M(R1)
Model：HDU-28H03/M
Outdoor：
N0.
Name of part
Specialized
NO.
N0.
Name of part
Specialized
NO.
1
Front guard assy.
001A0100122
14
Guard for heat exchanger
001A0100109
2
Front panel
001A1101078
15
Condenser assy.
001A0400119
3
Fan motor
001A3000082
16
Wire cover
001A0100394
4
Motor mounting plate
001A1301321
17
Slide plate (right)
001A0100390
0010400212
18
Valve pedestal
001A1301506
5
PCB
6
Transformer
001A3800005
19
3-way valve
001A2500082
7
Fan motor capacitor
001A3600018
20
2-way valve
001A2500082
8
AC contactor
001A3900161
21
Compressor
001A2000087
9
Top cover assy.
001A0100264
22
Terminal block
001A4000011
10
Liquid reservoir
001A2101857
23
Partition plate
001A0100350
11
Pipe Assy.
001A0500376
24
Running capacitor
001A3600030
12
Rubber pad.
001A1752289
25
Axial fan
001A5402022
13
Screw
001A5002152
Model：HDU-28C03/M
Outdoor：
N0.
Name of part
Specialized
NO.
N0.
Name of part
Specialized
NO.
1
Front guard assy.
001A0100122
14
Guard for heat exchanger
001A0100109
2
Front panel
001A1101078
15
Condenser assy.
001A0400139
3
Fan motor
001A3000082
16
Wire cover
001A0100394
4
Motor mounting plate
001A1301321
17
Slide plate (right)
001A0100390
5
PCB
----------
18
Valve pedestal
001A1301506
6
Transformer
----------
19
3-way valve
001A2500082
7
Fan motor capacitor
001A3600018
20
2-way valve
001A2500082
8
AC contactor
001A3900161
21
Compressor
001A2000087
9
Top cover assy.
001A0100264
22
Terminal block
001A4000011
10
Liquid reservoir
----------
23
Partition plate
001A0100350
11
Pipe Assy.
----------
24
Running capacitor
001A3600030
12
Rubber pad.
001A1752289
25
Axial fan
001A5402022
13
Screw
001A5002152
Model：HDU-28HA03/M(R1)
Outdoor：
N0.
Name of part
Specialized
NO.
N0.
Name of part
Specialized
NO.
1
Front guard assy.
001A0100122
14
Guard for heat exchanger
001A0100109
2
Front panel
001A1101078
15
Condenser assy.
001A0400119
3
Fan motor
001A3000082
16
Wire cover
001A0100394
4
Motor mounting plate
001A1301321
17
Slide plate (right)
001A0100390
0010400133
18
Valve pedestal
001A1301506
5
PCB
6
Transformer
001A3800141
19
3-way valve
001A2500154
7
Fan motor capacitor
001A3600018
20
2-way valve
001A2500153
8
AC contactor
001A3900161
21
Compressor
0010700989
9
Top cover assy.
001A0100264
22
Terminal block
001A4000011
10
Liquid reservoir
001A2101857
23
Partition plate
001A0100350
11
Pipe Assy.
0010700383
24
Running capacitor
001A3600030
12
Rubber pad.
001A1752289
25
Axial fan
001A5402022
13
Screw
001A5002152
6. Usage and setting of the remote controller
Operation
Buttons and display of the wire controller.
MODE
CLOCK
Used to select AUTO
RUN, COOL, DRY,
HEAT and FAN
operation.
Used to set correct time.
TIMER
Used to select
TIMER ON,
TIMER OFF,
TIMER ON/OFF.
FAN SPEED
MODE
FAN
SWING
Used to select fan
speed: LO, MED, HI,
AUTO
AUTO
TEMP
SET
% ROOM
ON
AM
PM
CLOCK
SET
TEMP
TIMER
SLEEP
Used to select your
•
FILTER RESET RESET
OFF
AM
PM
ON/OFF
TIME
SET
Used to confirm Timer
and Clock settings.
Used to set clock and
SLEEP
Power ON/OFF
Used to select sleep
Used for unit start and
Cautions:
On cooling only unit, heating
mode is not available.
Note:
The above information is the explanation of
the displayed information therefore varies
with those displayed in actual operation.
Operation
Buttons and display of the wire controller.
DRY
HEAT
FAN OPERATION
COOL
SLEEP
AUTO
MODE
FAN
SWING
AUTO
TEMP
SET
% ROOM
ON
AM
PM
CLOCK
SET
TIMER
SLEEP
•
FILTER RESET RESET
OFF
AM
PM
ON/OFF
FAN SPEED
TIMER ON
TIMER OFF
CLOCK
OPERATING LAMP
Remote control
TEMP.
Clock set
When unit is started for the first time, clock should be adjusted as follows:
Press CLOCK button, "AM"or "PM" flashes.
Press or to set correct time. Each press will increase or decrease 1min. If the
button is kept depressed, time will change quickly.
After time setting is confirmed, press SET, "AM "and "PM" stop flashing, while clock
starts working.
The air conditioner has the function of POWER
FAILURE RESUME.
MODE
SWING
3
TEMP
2
ROOM
FAN
CLOCK
SET
TIMER
SLEEP
•
FILTER RESET RESET
AM
4
ON/OFF
1
Fan operation
Enjoy yourself by just a gentle press.
(1) Unit start
(3) Fan
Press ON/OFF button, unit starts.
Previous operation status appears on display.
(Not Timer setting)
Power indicator on indoor unit lights up.
Press FAN button. For each press, fan speed
changes as follows:
LOW
(2) Select operation mode
Press MODE button. For each press, operation
mode changes as follows:
AUTO
COOL
DRY
HEAT
FAN
Unit will run in selected mode.
stop display at "
"FAN.
For cooling only type no " HEAT
" function.
MID
HIGH
Unit will run at selected fan speed.
(4) Unit stop
Press ON/OFF button.
Only time and room temp remains on LCD.
All indicators on indoor unit go out.
Vertical flap closed automatically.
Hints
Wire controller can memorize settings in each operation mode. To run it next time just select
the operation mode and it will start with the previous setting.
No reselecting is needed.(TIMER ON/OFF needs reselecting)
In FAN and AUTO mode, temp. can't be set.
AUTO RUN, COOL,HEAT and DRY operation
Recommendations
Use COOL in summer.
Use HEAT in winter.
Use DRY in spring,autumn and in damp climate.
FAN
MODE
SWING
AUTO
TEMP
2
CLOCK
SET
4
3
SET
TIMER
SLEEP
•
FILTER RESET RESET
AM
5
ON/OFF
1
(1) Unit start
(4) Fan speed selection
Press ON/OFF button, unit starts.
Previous operation status appears on display
(Not Timer setting).Power indicator on indoor
unit lights up.
Press FAN button. For each press, fan speed changes
as follows:
AUTO
(2) Select operation mode
LOW
Press MODE button. For each press, operation mode
MID
HIGH
AUTO
Unit will run in operation mode displayed on LCD.
Stop display at your desired mode.
Unit runs at the speed displayed on LCD.
In HEAT mode, warm air will blow out after a short
period of time due to cold-draft prevention function.
In DRY mode, when room temp. becomes 2•higher
unit will run intermittently at LOW
speed regardless of FAN setting.
(3) Select temp. setting
(5) Unit stop
Press TEMP button
Press ON/OFF button.
Only time and room temp remains on LCD.
All indicators on indoor unit go out.
Vertical flap closes automatically.
AUTO
COOL
DRY
HEAT
FAN
Every time the button is pressed, temp. setting
•.
If button is kept depressed, temp.setting will
increase quickly.
Every time the button is pressed, temp. setting
•.
If button is kept depressed, temp. setting will
decrease quickly.
Unit will start running to reach the temp. setting
Hints
Wire controller can memorize each operation
When starting it next time, just press
ON/OFF button and unit will run in previous
status.
FAN
MODE
SWING
TEMP
CLOCK
SET
2TIMER
SET
SLEEP
•
3
FILTER RESET RESET
ON
AM
4
AM
ON/OFF
1
TIMER operation
Set Clock correctly before starting Timer operation.
You can let unit start or stop automatically at following time: Before you wake up in the
morning, or get back from outside or after you fall asleep at night.
TIMER ON/OFF
(1)After unit start, select your desired
Operation mode will be displayed on LCD.
Power indicator on indoor unit lights up.
(2)TIMER mode selection
Press TIMER button to change TIMER mode.
Every time the button is pressed, display changes
(3)Timer setting
Press TIME
button.
Every time the button is pressed, time increases 10min.
If button is kept depressed, time will change quickly.
Every time the button is pressed, time decreases 10min.
If button is kept depressed, time will change quickly.
Time will be shown on LCD. It can be adjusted within
24hours.
(4)Confirming your setting
ON
OFF
ON
blank
OFF
Select your desired TIMER mode (ON or OFF)
After setting correct time, press SET button to confirm
"ON" or "OFF" stops flashing.
Time displayed: Unit starts or stops at x hour x min (ON
orOFF).
Timer mode indicator on indoor unit lights up.
To cancel TIMER mode
Just press TIMER button several times until TIMER mode disappears.
Hints
Wire controller possesses memory function, when use TIMER mode next time, just
press SET button after mode selecting if timer setting is the same as previous one.
MODE
FAN
SWING
TEMP
3
CLOCK
2 TIMER
SET
SET
SLEEP
•
ON
OFF
PM
AM
4
6
5
FILTER RESET RESET
ON/OFF
1
TIMER ON-OFF
(1)After unit start, select your desired
After time setting, press TIMER button to confirm.
"ON" stops blinking, While "OFF" starts blinking.
Operation mode will be displayed on LCD.
Power indicator on indoor unit lights up.
Time displayed: Unit starts at Xhour X min.
(2) Press TIMER button to change TIMER
mode
Every time the button is pressed, display changes as follows:
ON
OFF
ON
(4) Time confirming for TIMER ON
(5)Time setting for TIMER OFF
Follow the same procedures in "Time setting for
blank
OFF
ON
Select OFF
.
(3)Time setting for TIMER ON
(6)Time confirming for TIMER OFF
After time setting, press SET button to confirm
"OFF" stops flashing.
Time displayed: Unit stops at X hour X min.
Press TIME button.
Every time the button is pressed, time increases 10min.
If button is kept depressed, time will change quickly.
Every time the button is pressed, time decreases 10min.
If button is kept depressed, time will change quickly.
Time will be shown on LCD.
It can be adjusted within 24hours.
AM refers to morning and PM to afternoon.
To cancel TIMER mode
Just press TIMER button several times until TIMER mode disappears.
According to the Time setting sequence of TIMER ON or TIMER OFF, either Start-Stop or Stop-Start can
Comfortable Sleep
At night, before going to bed you
can press down the SLEEP button
on the controller and the airconditioner will run by the
comfortable sleeping mode to
make you sleep more comfortable.
MODE
FAN
SWING
TEMP
CLOCK
SET
SET
TIMER
SLEEP
•
FILTER RESET RESET
OFF
AM
AM
ON/OFF
Press SLEEP button once to make the air conditioner have the previous-set sleep time (first poweron is "1h"), the sleep symbol will appear. Press time button / , you can choose the time in 1~8
hours. Each press of / , the time increases/reduces 1 hour and "xh" appears in the humidity
setting part, "OFF" appears in "TIMER OFF" display part and timer-off time; press SLEEP button
again to cancel sleep function, the sleep symbol diappears.
In cooling, dehumidifying mode
One hour after sleeping operation start, the temp. is 1•C higher than the setting one. After another
hour the temp. rises 1•C and then run continuously for another 6hrs' and then close. The actual
temp. is higher than the setting one which is to prevent from being too cool to your sleep.
In heating mode
One hour after start up, the temp. decrease 2•C lower than the setting one. After another hour
decrease by more 2•C.
The temperature will automatically rise by 1•C after another 3hrs' operation, and then automatically
close after 3hrs' continuous operation. The actral temperature is lower than the setting one which
is to prevent from being too hot to your sleep.
Note:
In AUTO mode, unit will run in SLEEP function according to the operation mode.
After setting SLEEP function, it is forbidden to calibrate clock.
If the set sleep-time does not reach 8 hours, the unit will stop operation automatically after set
Set "TIMER-OFF" function first, then set SLEEP, and the sleep-set is performance; set TIMERON function first, the sleep function can only be set before TIMER-ON; if set theSLEEP function
first, the TIMER function can not be set.
SETTING T
SHUT DOWN
1 hr
SLEEP RUN BEGINS
SLEEP RUN STOPS
about 6 hrs
decrease 2•C
1 hr
1 hr
decreases 2•C
increase 1•C
about 3 hrs
3 hrs
1 hr
increase1•C
increase 1•C
SHUT DOWN
SETTING T
SLEEP RUN BEGINS
Heat mode
SLEEP RUN STOPS
Cooling mode
Remote Control
There is a telecommunication interface for remote control on the control panel of the
indoor unit. After the peripheral equipment have been installed in accordance with the
instruction manual of the selected remote control detector, the air conditioner will be
computerized and controlled from a far-away place.
Power Failure Compensation (to be applied for a necessary situation)
After the power failure compensation is set, if power failure suddenly occurs while the air conditioner
is working, it will resume the previous working state when the power is supplied again.
Setting Method: When the remote controller is on (excluding timer mode and fan mode), press
the "Sleeping" button on the remote controller 10 times within 5 seconds, and
after the buzzer rings 4 times, the air conditioner will enter the state of power
failure compensation.
Cancel Method: Press the "Sleeping" button on the remote controller 10 times within 5 seconds,
and after the buzzer rings 2 timer, the power failure compensation mode will be
cancelled.
Notes: When a power failure suddenly occurs during the air conditioner is working after the power
after the power failure compensation is set, if the air conditioner will not be used for a long time,
please cut off the power supply to prevent its operation from being resumed after the power is
supplied again, or press the "Switch On/Off" button after the power comes again.
Change-over switch
MARK
ON
OFF
1
3 level fan speed
2 level fan speed
2
AUTO mode
3
Swing
No swing
4
Display of humidity
No display of humidity
In this series changeover switch is set:
1. ON 2.OFF
3.OFF
4.OFF
Varible Temp. setting Auto Mode
please check the following things about your air conditioner before making a servie call.
Unit fails to start
Is the power source
switch adjust cut in?
ON
Is city supply power in Isn't the signal receivingIsn't the earth leakage
normal?
section exposed to thebreaker in action?
direct sunlight or strong
illumination?
It is dangerous. Turn off
the power supply switch
immediately and contact
the sales dealer.
Power
OFF
Power supply switch is
Cooling or heating is not sufficient
Is the thermostat adjustIsn't the air filter dirty? Isn't any doors or windowsDoesn't any obstacle
exist at the air inlet or
as required?
outlet?
Cooling is not sufficient
Isn't the swing louver
horizontal?
Isn't sun-shine invadingIsn't any unexpected Isn't the room much
(At HEATING mode)
heating load generated?crowded?
If swing louver is horizontal, direct?
the blow wind does not reach
floor.
The wind does not blow
during heating operation
Isn't it warming up?
page 9
When the air conditioner does not operate properly after you have checked the above mentioned
items or when the following phenomenon is observed, stop the operation of the air conditioner
and contact your sales dealer.
The fuse or breaker often shuts down.
Water drops off during cooling operation.
There is a irregularity in operation or abnormal sound is audible.
When the CHECK lamp (yellow) flickers, an irregularity has occurred in the air conditioner.
Flickering
Content of defect
1 Time/8 sec.
2 Time/8 sec. 3 Time/8 sec. 4 Time/8 sec. 5 Time/8 sec. 6 Time/8 sec.
Abnormality of
Abnormality of
return air thermistor
Abnormality of
ourdoor unit
Drain trouble
Gas is short
Overload in heating
Note:
This unit has a function of automatic restart system after recovering power stoppage. Please contact the sales
dealer if it is not required.
Dimension of remote controller
UP
ON/OFF
LEFT
RIGHT
DOWN
风速
模式
摆风
温度
时钟
设定
定时
睡眠
滤网复位
复位
ON/OFF
7.Introduction of electrical control functions
This section includes introduction of items and electrical functions of serial machines
7.1 Introduction of electrical control functions
7.1.1 Auto-running
After system is on and turned to auto-running mode, the system shall first choose a suitable
operation mode according to present indoor temperature. Then it shall operate under the
chosen mode. Tr represents indoor temperature and Ts represents set temperature in the
following choices.
a. To both cold and heat producing machine
For the first time when the machine enters auto-running mode, it shall choose operation
mode according to the following listed:
Tr ≥Ts –3oC
choose cold producing mode ( set temperature is Ts+3 )
Tr ≤Ts-3oC
choose heat producing mode ( set temperature is Ts-3 )
After it enters into auto-running, operating mode shall switch between cold producing and
heat producing according to changes of indoor and outdoor temperature. The switching
mode is as the following chart showing:
cold producing
indoor
temperature
drops
Ts+3
Ts-3
cold producing
heat producing
air supply
Ts-3
indoor
temperature
rises
heat producing
b. For only cold-producing machine
For the first time it enters auto-running mode, the system shall choose running mode
according to the following listed:
Tr ≥Ts –3oC
choose cold producing mode ( set temperature is Ts+3 oC
Tr ≤Ts-3oC
choose ventilation mode
)
After it enters into auto-running, operation mode shall switch between cold producing and
ventilation according to changes of indoor and outdoor temperature. The switching mode is
as the following chart shows:
cold producing
indoor
temperature
drops
ventilation
cold producing
Ts-3
ventilation
Ts+3
indoor
temperature
rises
7.1.2 Auto wind speed choice
Tr herein after refers to indoor temperature and Ts refers to set temperature.
a. When machine is for cold producing and wind speed is switched from low speed
to high speed, switching shall not be enabled until operation under present wind speed
exceeds 3 minutes. There is no time lag when switching from high wind speed to low wind
speed. Switching shall be as the following chart shows:
high speed
set temperature+3 oC
temperature
drops
set temperature +2 oC
high speed
medium speed
set temperature+1 oC
medium speed
low speed
set temperature
temperature
rises
low speed
b. During heat producing (suitable for both heat and cold producing machine), when
wind speed is switched from low to high, switching shall not be enabled until operation
under present wind speed exceeds 3 minutes. There is no time lag when switching from
high wind speed to low wind speed.
Switching shall be as the following chart shows:
temperature
drops
low speed
Ts
low speed
medium speed
Ts－1℃
Ts－2℃
medium speed
high speed
Ts－3℃
high speed
temperature
rises
7.1.3 Dehumidifying running
When system enters dehumidifying running, air-compressor, outdoor unit and indoor fan
shall operate as the following stipulations: (Tr herein after refers to indoor temperature and
Ts refers to set temperature)
7.1.3.1 Tr>Ts+2 oC, and when air compressor and outdoor fan are continuously running,
indoor fan runs in set wind speed. Working section under such status is section A.
7.1.3.2 Ts≤Tt≤Ts+2 oC, air compressor and outdoor fan runs for 10 minutes with a 6
minutes’ break, and indoor fan runs in low speed. Working section under such status is
section B.
7.1.3.3 Tr<Ts, air compressor and outdoor fan stops running, indoor air fan runs in low
speed. Working section under such status is section C.
After system enters dehumidifying operation mode, it shall switch among section A, B, and
C with changes of indoor temperature. Switching of operation mode is as the following
chart shows:
indoor
temperature
drops
section A
Ts＋1
section A
Ts＋3
section B
section B
Ts－1
Ts
section C
section C
indoor
temperature
rises
7.1.4 Over-heating cut-off protection (suitable for both cold and heat producing
machine )
Under heat producing mode, if indoor air fan is on and air compressor has been
running for over 30 seconds, detecting indoor vent pipe temperature and transferring it
outdoor. When indoor vent pipe temperature is above 53oC, outdoor air fan shall operate in
low speed. Whenever indoor vent pipe temperature is lower than 50 oC, outdoor air fan
shall get back to high speed operation. If indoor vent pipe temperature is above 56 oC,
outdoor air fan shall stop running. Whenever indoor vent pipe temperature is lower than 53
o
C, outdoor air fan shall get back to low speed operation. When indoor board receives
signals of outdoor air fan off from outdoor board for over 2 minutes, if indoor vent pipe
temperature is over 70 oC, or indoor vent pipe temperature is over 56 oC after 10 minutes, it
shall send stop operation signal to outdoor air compressor. After air compressor stops
running, if detected indoor vent pipe temperature is lower than 46 oC and air compressor
has been out of operation for over 3 minutes, it shall send signals for starting operation to
outdoor air compressor and enable it back to operation. Control of outdoor air fan shall be
carried out outdoor.
If indoor air vent temperature is above 59oC, the low speed rank of indoor air fan shall
be of no effect and it shall switch into medium speed operation automatically. When indoor
air vent temperature is above 63 oC, indoor air fan shall switch into high speed rank
automatically. When indoor air vent temperature replaces to below 53 oC, air fan shall get
back to operate in original speed. Outdoor MCU is adopted for carrying out over-heating
protection according to temperature value.
7.1.5 Cold wind preventing in heat producing (suitable for heat and cold producing
machine)
For the first time the machine enters heat-producing mode or when the last defrosting
completes, if indoor vent pipe temperature equals to or above 28 oC and lower than 38 oC,
indoor air fan shall run in low speed. Whenever indoor vent pipe temperature is higher than
38 oC or air compressor has been operating for more than 4 minutes, indoor air fan shall run
in set wind speed.
7.1.6 Blowing of left heat during heat producing (suitable for cold and heat producing
machine)
When air compressor is out of operation during heat producing or heat producing is turned
off, indoor air compressor shall run in low speed for 50 minutes and then stop running.
7.1.7 Auto defrosting control (suitable for cold and heat producing machine)
7.1.7.1 Conditions for defrosting starts:
a. Machine enters into heat producing and air compressor has been running continuously
for over 35 minutes.
b. Air compressor has been continuously running for over 5 minutes and the accumulated
running time of air compressor is over 40 minutes.
When one of the above conditions is met and temperature is within the scope shown in
shadow in the following chart, defrosting shall start.
vent
pipe
temperature (℃)
-12℃
-1℃
0
circumstance
temperature（℃）
-6℃
-18℃
7.1.7.2 Conditions for defrosting stops
When outdoor vent pipe temperature equals to or higher than 14 oC, or defrosting has been
lasting for more than 12 minutes, defrosting shall end and send signals of defrosting
releasing to outdoor.
7.1.7.3 After defrosting starts, elements shall carry out the following actions:
During defrosting, air compressor and all-direction valve shall be commanded indoor.
Outdoor air fan is controlled outside. The specific actions are as following listed:
Air compressor and outdoor air fan stops. Meanwhile indoor air fan stops operating. After
55 seconds, switching-direction valve turns off and after another 5 seconds, air compressor
starts. After defrosting completes, air compressor shall stop operating and outdoor air fan
shall run in high speed. After 55 second, switching-direction valve turns on and after
another 55 minutes, air compressor gets back to operation. Indoor air fan operates under
anti-cool wind conditions.
Manual defrosting
When manual defrosting signal is sent from the panel, indoor and outdoor unit shall operate
defrosting function without testing of each defrosting condition. The defrosting process is
the same as automatically defrosting. Exiting condition is defrosting time shall exceed 5
minutes.
7.1.8 Test of water fill and control of drainage pump
a. Under cold producing mode (including automatically cold producing operation)
and dehumidifying mode, air compressor turns on and water pump then starts working.
When air compressor is turned off, water pump shall be turned off after 5 minutes.
b. After water tanker is full, floater switch shall break. When controller detects this
signal, pump shall get into operating. After floater replaces, water pump shall continue
working for 5 minutes.
c. Whenever water full signal is detected continuously for over 5 minutes, pump
lamp shall blink for alarming. Air compressor shall stop working and pump shall be on for
5 minutes with every 5 seconds break. After floater replaces, there is a time lag of 5
minutes and then the pump stops running.
7.1.9 3 minutes’ protection for air compressor
After air compressor stops running, it shall not be re-operated until 3 minutes later.
Whenever system is out of power during operation for less than 3 minutes, air compressor
shall re-operate at least after 3 minutes when power on again.
7.1.10 Control of outdoor air fan (suitable for cold and heat producing machine)
cold producing operation
high speed wind
low speed wind
28
heat producing operation
26
high speed wind
low speed wind
13
15
Wind speed switching shall only be possible after at least 45 seconds’ of operation in
present operating speed.
7.1.11Over current protection
When air compressor is on for more than 40 seconds, if air compressor current is
higher than 15.5/12.6A (voltage of current testing orifice is 2.58V) and lasts for more than
10 seconds, outdoor air fan shall switch into low wind speed operation. When current is
lower than 13.5/11A(2.22V), outdoor air fan shall then get back to high speed operation.
When current is higher than 18/14.7A(3.07V) and lasts for 10 seconds, outdoor fan shall
then stop operating. When operating current is lower than 16.5/12.7A(2.80V), outdoor unit
shall get back to low speed operation. (wind speed switching frequency shall be higher than
30 seconds). After air compressor operates for 5 minutes, if operating current is higher than
26/21A(4.25V) and lasts for 5 second, air compressor shall then stop operating and get
back to work after 3 minutes. If air compressor protection occurs 3 times within 30 minutes,
air compressor shall not operate again and shall transmit error code to indoor unit. E5 shall
be shown on linear controlling machine panel. Only after power is on again after being cut
off, protection shall be released.
7.1.12 Pressure protection
Pipe circuit pressure shall be tested after air compressor operates for more than 8
minutes. When pipe circuit pressure is too high, air compressor and outdoor air fan shall
stop operating and get back to operation 3 minutes later. Pipe circuit pressure shall be
retested 8 minutes after air compressor re-operates. The above procedure shall be repeated.
System shall stop operating if air compressor stops operation for 3 times within 30 minutes
due to over-pressure in pipe circuit and then it shall transmit error code to indoor unit. E6
shall appear on linear controlling machine panel. Only after power is on again after being
cut off, protection shall be released.
7.1.13 Power cut-off memory function
When power being cut-off, repaired for faults, or operating stopped for fixing occurs
during operation, the system shall re-operate under previous conditions after power is on.
P.S：
a. Function set: press sleeping key continuously for 10 times within 5 seconds, panel
beeper rings for 4 times.
b. Memory items: operation mode, set wind speed, set temperature, wind swing situation,
electrical heating situation, and health function situation.
c. Function cancellation: press the sleeping key for 10 times using the controller and then
panel beeper rings for two times.
7.1.14 Remote network monitoring and controlling function
Air conditioner is connected to remote controlling detector (manufactured by Haier) for
tele-communication through prefabricated orifice on main board by two-core wire, and it
shall carry out orders form the computer or centralized controller through remote-control
detector. Meanwhile, air conditioner shall send its present operation situation and error
information to remote-control detector.
The following drawing is connection of air conditioner with remote-control detector
CN11
Computer
board
1
2
AA+
remote-control detector connecting orifice
7.1.15 Trail run
After receiving compelled cold producing signal from the board, main unit shall operate for
cold making, outdoor air fan shall be high speed operating, and air compressor shall starts
operating. After outdoor air fan operates in high speed for more than 5 minutes, it shall
switch into cold making mode and send signal to outdoor. The system shall not carry out
any protection and shall be beyond environment temperature restrictions within 5 minutes.
Air compressor shall be under restrictions of 3 minutes protection.
7.2 Defrost operation Flow Chart
Come to defrost
Compressor
ON
Open outdoor fun
Compressor
Condition
off or 55s?
E-Heat off for 30s?
for
compressor
Return
OFF
Operation
fun motor
indoor
Return
Turn off compressor
outdoor fun
OFF
compressor
4-way value
ON
Return
Compressor
ON ?
Turn off for
55s?
Turn off
4-way value
Return
Clear the sign of
defrosts
Return
Compressor
ON
Return
B
Return
7.3 Circuit layout plane in printed circuit board and parameter of main elements
Circuit Layout plane of in printed circuit board
Parameter chart of main elements
No of
sequence
Name
Type of elements
Quantity
1
Power resistance
RJ15 10K/0.5W
2
R22R23
2
Precise resistance
RJJ14 20K
1
R15
CC1 102/63V
1
C8
3
Capacitance
Unit
Code
Remarks
Zibo Liu Factory, Tianjin
Xinda
Zibo Liu Factory, Tianjin
Xinda
Hongming Guangdong
Fenghua
Handan Hongda
4
Ceramic crystal
vibrator
8MHz
CSTS0800MG03
1
OSC
AVX
5
Ray couple
TLP521-1 GR
1
IC5
TOSHIBA
6
Ray couple
TLP371
1
IC4
Provided by Haier
7
Voltage balancing
block
7805
1
7805
ST Guoban TI
8
Voltage sensitive
resistance
550NR-14D
S14KV561
1
VR(with
protection
cover)
Northern land of Japan
Simens
9
Fuse
F3.15A 250VL
1
10
Relay
JQ1aP-12V
3
JK1 JK5
JK6
Japan Panasonic
11
Relay
JQ1P-12V
2
JK6
Japan Panasonic
Suzhou Lite
7.4 Wiring Diagrams
(1) HDU-28H03/M HDU-28HA03/M(R1)
HDU-28H03/M ＨＤＵ－２８ＨＡ０３／Ｍ（Ｒ１）INDOOR
WIRING REMOTE
CONTROLLER
FLOAT
SWITCH
PIPING
TEMP.
SENSOR
FZ
PUMP
M
FAN MOTOR
M
CAPACITOR
Y/G
CN5
CN3
CN12
CN11
CN1
CN2
REMOTE CONTROL
DETECTOR
CN8
3.15A/250V~
CN10
CN9
FUSE
Y/G
W
B
R
1
2
3
Y/G
TRANSFORMER
R: RED
B: BLACK
W : W HITE
Y/G: YELLOW /GREEN
H03/M OUTDOOR
TO OUTDOOR UNIT
(2) HDU-28C03/M
WIRING DIAGRAM OF INDOOR UNIT
PIPING
FLOAT TEMP.
SWITCH SENSOR
CONTROL
WIRE BOX
PUMP
M
CN5
CN3
FZ
CN2
CN11
FAN MOTOR
CN2
M
FAN MOTOR
CAPACITOR
CN1
REMOTE CONTROL DETECTOR
CN8
3.15A/250V~
Y/G
CN10
CN9
CN7
FUSE
TRANS.
W
B
R
1
2
3
Y/G
TO OUTDOOR UNIT
B: BLACK
R: RED
W: WHITE
Y/G: YELLOW/GREEN
WIRING DIAGRAM OF OUTDOOR UNIT
PRESSURE
SWITCH
PIPING TEMP.
THERMISTOR
Y/G
CN1
MAGNETIC
CONTACTOR
R W BL
CN5
OUTDOOR PC BOARD
CN2
AMBIENT TEMP.
THERMISTOR
R
CN9
COMP.
R
FAN
MOTOR
CAPACITOR
R W
BL
R S T
POWER
R W B
N
1 2
CN3
CN7
AC-L/C
CN8
COMMUNICATOR
AC-N
TERMINAL
AC-L/B
B
AC-L/A
Y/G
FAN
MOTOR
CAPACITOR
4-WAY
VALVE
R
Y/G
3
TRANS.
TO INDOOR UNIT
W: WHITE
B: BLACK
R: RED
BL: BLUE
Y/G: YELLOW/GREEN
(3) HDU-42H03/M HDU-42HA03/M(R1) HDU-36HA03/M(R1)
HDU-42H03/M HDU-42HA03/M(R1) HDU-36HA03/M(R1) INDOOR
R: RED
B: BLACK
W: WHITE
Y/G: YELLOW/GREEN
HDU-42HA03/M(R1) HDU-36HA03/M(R1)
HDU-42H03/M OUTDOOR
PIPING TEMP. SENSOR
AMBIENT TEMP. SENSOR
CN3
TRANSFORMER
OUTDOOR PCB
PRESSURE SWITCH
CN1
CURRENT TEST
R
CN8
B
CN4
N
CN7
R
CN6
FAN MOTOR
CAPACITOR
FUSE
S
R
S
T
2
1
BL
3.15A/250V~
R
3
4 WAY WALVE
R
BL
S
B
N
T
R:RED
B
W:WHITE
MAGNETIC CONTACTOR
BL:BLUE
Y/G
COMPRESSOR
CRANKCASE HEAFER
B
POWER SUPPLY TO INDOOR UNIT
3N~,380V,50Hz
Y/G:YELLOW/GREEN
CAPACITOR
R
L
R
Y/G
B
B:BLACK
FAN MOTOR
(3) HDU-42C03/M
WIRING DIAGRAM OF INDOOR UNIT
PIPING
TEMP.
SENSOR
FLOAT
SWITCH
CONTROL
WIRE BOX
FZ
PUMP
M
CN5
CN3
CN2
CN11
CN2
FAN MOTOR
M
FAN MOTOR
Y/G
CAPACITOR
REMOTE CONTROL DETECTOR
CN8
3.15A/250V~
CN10
CN9
FAN MOTOR
CAPACITOR
CN1
CN7
FUSE
M
FAN MOTOR
Y/G
TRANS.
W
B
1
2
R
Y/G
3
TO OUTDOOR UNIT
B: BLACK
R: RED
W: WHITE
Y/G: YELLOW/GREEN
ＯＵＴDOOR WIRING DIAGRAM
COMPRESSOR
T
R
S
BL
FAN MOTOR
R
CAPACITOR CAPACITOR
MAGNETIC
CONTACTOR
FAN MOTOR
B
R
BL
B
R
R
B
R
POWER SUPPLY:
S
T
N
3N~,380V,50Hz
1
Y/G
2
3
TO INDOOR UNIT
W: WHITE
R: RED
BL: BLUE
B: BLACK
Y/G: YELLOW/GREEN
F
E
D
C
B
A
CND
C6
104
100
1
R8
10K
C5
7005
3 Vout
Vin
IC2
600D
100
1
C17
F/50V
C9
103
R5
10K
OSC
10
C13
6
Q1
9014
R4
1K
12
6
2
F/16V
C4
104
1
F/16V
C7
104
R1
5.6K
Q1
9014
R32
10K
7012
3 Vout
Vin
C26
12
R9
1K
2
R33
10K
12
R29
10K
1K
R7
6
C27
104
4.7
R2
10K
10K
R18
6
C14
103
6
12
IC7
4
6
5
8
12
R3
10K
7
LM358
DL3
F/16V
6
6
CN11
C16
104
XT
DL2
A B C D
DL1
DL10
1
GND
2
GND
2
CN12
12
IC1
TMP87C846
4
UREF
6
2200
3
F/35V
F/50V
C12
L1
101K
D2
4.7
C3 D4
CN1
EX HT
6
D3
D1
C18
103
T1
4
CN9
CHECK
R11
10K
CN3
6
42
41
48
39
38
37
36
35
34
33
32
31
30
29
28
27
26
25
24
23
22
0.1
R15
20K
1
Panel signal reception
UDD
2
Panel signal emission Single cold or Fan-coil
3
With or without outdoor PCB
4
Wire control or remote control
5
Switch
Outdoor signal emission
6
Outdoor signal reception
Model
7
Distance emission
Selection
8
Compressor
9
Buzzer
Distance reception
10
Low wind
11
Medium wind
12
High wind
13
Crankshaft
14
Anion
Step motor
15
Temperature compensation selection
Pump
16
Electric heating
Dobber
17
Resistance detection
TEST
18
Indoor coil pipe
RESET
19
XIN
Room temperature
20
XOUT
Forced service
21
GND
3
RA1
6
F/275V
C2
5
0.1
C1
1
R6
10K
UR
FUSE
3.15A/250V
3 12
8
4
CHD
18
17
16
15
14
13
12
11
2
DL4
1
2
3
4
5
6
7
8
9
6
6
6
164
C26
8
N
L
CN10
R27
10K
R26
10K
12
18
17
16
15
14
13
12
11
10
TLP521
IC5
12
DL5
VCC
08
07
06
05
04
03
02
01
IC4
TLP371
R12
5.6K
IC3
2803
R14
1K
R18
330
C19
103
CN2
Q2
IC7
LM358
F/275V
Q3
9014
12
CA1
R26
1K
8HY
LM
5.6K
R21
5
C8
102
LX
L2
331K
C23
104
5.6K
R24
R13
10K
6
C21
104
12
7
C16
103
33K
C11
103
R17
7
CN4
CN5
HF
MF
LF
N
CN8
D5
28
39
40
8
with Temperature without Temperature Compensation
Compensation
Wire remote control remote control
With ooutdoor PCB Without ooutdoor PCB
Low
Single Cold
High
Cooling
and Heating
41
47
C22
0.01 F/275
R28
FM
PUMP
D6
R23
10K/6.5W
R22
10K/6.5W
PIN
JK6
JK5
JK1
JK2
JK3
R16
2.2K
LED
8
N
8
F
E
D
C
B
A
8.Electrical diagram
(1) Indoor electrical diagram
A
B
C
D
CT1
CN3
1
DB1
TM TH
EX HT
R7
CN2
CA1
+5
+5
C18
103
560
28 series
RW
101
R7
560
FS
C7
10UF/16V
TEST
C13
1K
840
42 series
R5
1K
C8
10UF/16V
R6
2
2
HEAT
IC5
T600D
10K
R9
470UF/16V
R4
5.1K
+5
COOL
R3
5.1K
+5
D8
4148
R21
10K
+5
C11
104
OSH
FIU
RXJG
RA1
1
C6
104
3
100UF/16V
C5
+5
C12
104
C9
104
OSC
8MHz
C10
4.7UF/50V
R8
1K
2
Vout
VOLTREG
+5
GND
2
XXN
YNA
KGNB
UWYG
A
JF
KGNB
Y
G
CF
TYI
K
FMAFW
TQIY
GAK
UDU
Vin
14
13
12
11
10
9
8
7
6
5
4
indicator lamp
choice on defrosting
VCC
RESET
4
22
23
24
25
26
27
28
current test
3
C4
104
1
R10
10K
C3
2200UF/35V
+12
+5
VAREF
DO
VSS
D1
D2
D4
D3
4
2
1
CS
SK
DI
air compressor
all direction valve
outdoor vent pipe temperature heating of curving axe
outdoor temperature
+5
CN1
4PIN
15
16
17
18
19
20
compelled cool producing outdoor air fan low speed wind
outdoor air fan high speed wind 21
pressure test
sending end of communication
receiving end of communication
compelled heat producing
choice on wind speed
TEST
3
2
crystal vibrating
crystal vibrating
IC1
TMP87P808N
1
3
2
1
C2
0.1UF/275V
CN4
4PIN
C17
103
R20
1K
5
+5
5.6K
R19
8
1
2
3
4
5
6
7
9
D5
C1
VR
R17
33K
6
6
C14
22UF/250V
D6
D7
C16
103
FUS2
200K
R14
4007
R13
+5
C15
103
2.2K
R18
+12
16
15
14
13
12
11
10
J9
R16
10k
TLP371
IC4
0.1UF/275V
LX
IC3
R15
560
Q1
Q2
Q3
Q4
Q5
Q6
Q7
VCC
TLP521-1
GND
A1
A2
A3
A4
A5
A6
A7
IC2
ULN2003A
R11
R12
62K/1W*3
+5
C19
103
5
N
L
+12
R23
10K/0.5W
R22
10K/0.5W
5
25
D9
4007
7
Pipe foot
JK2
JK3
JK4
JK5
7
8
Standard
Single speed
V
C
Two ranks
CN6
CN7
OF
Low
S
2PIN
2PIN
H
L
N
High
1
2
1
2
CN9
8
A
B
C
D
(2) Outdoor electrical diagram
A
B
C
With setting
ON
With setting
wind speed
Three ranks
C10
104
1
+5
C9
R2
5.1K
+5
C11
103
R13
10K
+5
+5
2
R3
10K
+5
1
R8
1M
2
3
D
3
YCH
DL1
+5
COM
C
DL2
B
Q2
2712
1K*4
3K
R22
R7
R5
R6
R4
R20
1K
R21
3K
OFF
C14
104
R23
10K
4
8
+12
OPTION
IC3
LM358
4
3
2
ON
1
R27
10K
R24
3K
R11
10K
R10
1K
C6
22P
Q4
2712
R9
10K
Q3
2712
R26
1k
R14
1K
OSC
4MHz
With humidity
C5
22P
RT1
Humidity set
4.7UF/50V
IC2
T600D
ISS187
D1
R15
10k
C8
4.7UF/50V
4 Choice of temperature
3 Choice of wind orientation Swing wind set With swing wind
of set temperature
2 Auto-runChoice
OFF
Two ranks wind
speed
OPTION
1 Choice of wind speed
A
+12
DL3
C13
102
D2
ISS187
R25
68
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
4
AVCC
R70AN0
R71AN1
R72AN2
R73AN3
R80AN4
P81AN5
AVSS
TEST
OSC1
OSC2
GND
X2
X1
REST
VCC
D0INT0
D1INT1
D2
D3
4
5
80
79
78
77
76
75
74
73
72
71
70
69
68
67
66
65
64
63
62
61
IC1
HD4889
V0
V1
V2
V3
COM4
COM3
COM2
COM1
SEG32
SEG31
SEG30
SEG29
SEG28
SEG27
SEG26
SEG25
SEG24
SEG23
SEG22
SEG21
D4
D5
D6
D7
D8
D9
D10
D11
R00WU0
R01WU1
R02WU2
R03WU3
R10EVN
R11EVN
R12BUZ
R13TOB
R20TOC
R21SCK
R22SI
R23
C4
104
7812
93C46
6543
+5
C7
104
100UF/25V
C3
+5
J3
J1
C17
104
3
J4
5
J2
LCD
78M05
R17
510
SEG20
SEG19
SEG18
SEG17
R63S16
R62S15
R61S14
R60S13
R53S12
R52S11
R51S10
R50SE9
R43SE8
R42SE7
R41SE6
R40SE5
R33SE4
R32SE3
R31SE2
R30SE1
Vout
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
3
Vin
60
59
58
57
56
55
54
53
52
51
50
49
48
47
46
45
44
43
42
41
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
GND
2
6
1
C2
104
LED1
C1
+12
6
100uF/25V
DL4
+5
23
24
25
26
27
28
29
30
31
32
33
34
35
36
2
5.1K
R16
7
1K
R19
7
+5
R28
110K
SW1
SW2
SW14
SW4
SW3
SW5
SW8
SW7
SW12
SW11
SW15
SW10
SW9
SW6
SW17
DQ4
2712
BUZ
R18
1K
8
wind speed
mode
temperature rises
wind orientation
temperature drops
health
time increases
switch
setting
timer
time decreases
sleeping
time o'clock
replacement of filter
electrical heating
8
A
B
C
D
(3) Wire remote controller electrical diagram
9.Abnormity diagnosis
Once abnormity appears, you could perform fault analysis on the basis of the
following chart and try to solve problems (For only cold-producing machine, faults with
the mark of * do not exit).
Fault
code
E1
E2
E3
E4
Reasons
1.Indoor temperature circuit
sensor destroyed or get short
2. L1 on indoor computer
board destroyed
1.Indoor
vent
pipe
temperature sensor destroyed
or short circuit
2.L1 on indoor computer
board destroyed
1.Outdoor
temperature
circuit sensor destroyed or
get short
2. L1 on outdoor computer
board destroyed
1.Outdoor
vent
pipe
temperature sensor destroyed
or short circuit
2.L1 on outdoor computer
board destroyed
Solution
Remarks
Change indoor temperature
circuit sensor or indoor computer
board
Change indoor vent pipe
temperature sensor or indoor
computer board
*
Change outdoor vent pipe
temperature sensor or outdoor *
computer board
E5
1.Air compressor current
exceeds protection limit
2.Current sensor mutual
sensor on outer computer
destroyed
E6
1.Pressure switch of outer
Power on again after being cut
unit breaks
*
off
2.Insert piece of pressure
switch not properly inserted
E8
Communication
failure
between panel and indoor Check communication circuit
unit
E9
Failure in communication
between indoor unit and Check communication circuit
outdoor unit
1.Power on again after being cut
off
*
2.Change outdoor computer
board
*
Relay JK2 on outdoor board has output
Relay JK2 on outdoor board has no output
Leg 14 of 2003 on outdoor board has no
output
Relay JK3 on outdoor board has output
Relay JK3 on outdoor board has no output
Communication indicator of indoor
board does not flash
Leg 13 of 2003 on outdoor board has
no output
Abnormal power supply of outdoor board
Obstruction in signal S between indoor
and outdoor unit
Result of examination
pipe pressure is normal Two pins of CN2 on outdoor board are both
low voltage
Alarm displayed while
temperature condition
under the normal
wlrk in cool mode
Compressor does not
operation
output when in heat
4-way valve has no
board communication
indoor and outdoor
The trouble of the
Symptom
Change a new fuse
Fuse of outdoor board is damaged
Pressure testing circuit is in trouble
Socket CN7 on outdoor board and
connection wire are not linked well
Socket CN2 on outdoor board and
connection wire are not linked well
Relay JK2 on outdoor board is damaged
2003 is damaged
Temp. of indoor coil pipe is too low,
freeze-proof protection
Return it to the manufacturer for service
Link the connection wire well
Link the connection wire well
Change a new relay JK2
Change a new 2003
After the temp.of the indoor coil pipe
increasing to 8 the machine
automatically start
Socket CN6 on outdoor board and
Link the connection wire well
connection wire are not limked well
Safety unit is protecting the machine for After 3 minute the machine automatically
3 minute.
start
Change a new relay JK3
Change a new 2003
2003 is damaged
Relay JK3 on outdoor board is damaged
Return it to the manufacturer for service
Return it to the manufacturer for service
Communication circuit is in trouble
Power supply circuit of outdoor board is
in trouble
Plug in the transformer
Plug in the power line
Power line is not linked well
Transformer is not linked well
Insert the linking assemblies
Measures
Linking assemblies are not ready
Possible reason
Temp. of indoor coil pipe is too low,
freeze-proof protection
Leg 15 or 16 of 2003 on outdoor board
Relay on outdoor board has output
Relay on outdoor board has output
Change new relays
Change a new 2003
After the temp. of the indoor coil pipe
increasing to 8 the machine
automatically start.
Socket CN8 on outdor board and connection
Link the connection wire well.
wire are not linked well
Change new relays
Change a new 2003
After the temp. of the indoor coil pipe
Temp. of indoor coil pipe is too high,overheat
decreasing to 48 the machine
protection
automatically start.
Socket CN9 on outdoor board and connection
Link the connection wire well.
wire are not linked well
2003 is damaged
has no output
Relay JK1 or JK5 on outdoor board has Relay JK1 or JK5 on outdoor board is
damaged
no output
Leg 15 or 16 of 2003 on outdoor board
Change a new relay JK2
Change a new 2003
Socket CN7 on outdoor board and connection Link the connection wire well.
wire are not linked well
Relay JK2 on outdoor board has no output Relay JK2 on outdoor board is damaged
Relay JK2 on outdoor board has output
After 3 minute the machine automatically
start
Measures
Temp. of indoor coil pipe is too high,overheat After the temp. of the indoor coil pipe
decreasing to 48 the machine
protection
automatically start.
Safety unit is protecting the machine for 3
minute.
Possible reason
Leg 14 of 2003 on outdoor board has no
2003 is damaged
output
Result of examination
2003 is damaged
has no output
while outdoo rfan does
Relay JK1 or JK5 on outdoor board has Relay JK1 or JK5 on outdoor board is
not work.
damaged
no output
compressor works
In heat mode,
not work.
while outdoor fan does
compressor works
In cool mode,
temperature condition.
under the normal
work in heat mode
Compressor does not
Symptom
speed
Change a new float
Measures
Relay JK6 is damaged
CN5 on indoor board has no output
2803 is damaged
Link wire of float feedback signal is
obstructed
Relay JK1 on indoor board has no output
Relay JK1 is damaged
Change a new relay JK1
Change a new 2803
Change a new relay JK2
Relay JK2 is damaged.
Relay JK2 on indoor board has no output
Change a new relay JK1
Change a new 2803
Leg 17 of 2803 on indoor board has no output 2803 is damaged
Terminal COM of relay JK1 on indoor board
Relay JK1 is damaged.
has no voltage
Change a new relay JK1
Relay JK1 on indoor board has no output Relay JK1 is damaged.
Change a new 2803
Change a new relay JK2
2803 is damaged
Terminal COM of relay JK2 on indoor board
Relay JK2 is damaged.
has no voltage
2803 on indoor board has no output
Link CN8 well
Change a new 2803
Change a new link wire
CN11 on indoor board is not linked well Link CN11 well
Outputs of relay JK1,JK2 and JK3 are normal CN8 on indoor board is not linked well
2803 on indoor board has no output
Change a new 2803
2803 is damaged
Leg 12 of 2803 has no output
Change a new relay JK6
Change a new indoor board
CN11 on indoor board is not linked well Link CN11 well
Float itself is damaged
Possible reason
Main chip of indoor board is damaged
No signal of float rising
Result of examination
Indoor fan has no high Leg 16 of 2803 on indoor board has no output 2803 is damaged
speed
Indoor fan has no mid
speed
Indoor fan has no low
work
Indoor fan does not
is normal
Alarm when water level
when water is full.
not discharge water
Drainage pump does
Symptom
Change a new computer board
Change a new fuse
Link the transformer well or change a new
one
Parts of filter circuit are damaged
Fuse is damaged
Transtormer is not linked well or it is
damaged
Reset chip T600D is damaged
Properly loosen installation bolts of four
circuit boards
Change a new buzzer
Joints of connection line are not linked well Link the joints well
Display panel is improperly installed
Has square wave signal in both ends of buzzer Buzzer is damaged
Change a new computer board
Change a new rest chip T600D
Connection parts between front controlling
Link the connection parts well
board and indoor board is not linked well
Filter capacitor C2,C3 on power supply of
Change a new capacitor
display board is damaged
7805 and its input output filter capacitor are
damaged
Change a new computer board
Short-circuit of other circuits
Power supply part of indoor board is damaged Change a new computer board
Link power line well
Measures
Power line is not linked well
Possible reason
Has no square wave signal in both ends of
Main chip is damaged
buzzer
Reset voltage is low
+5V output is abnormal
board has no voltage
Power supply input of front controlling
Output of 7805 is abnormal
The second side of transformer has no output
No voltage after passing fuse
Power supply input of circuit board has no
voltage
Result of examination
Front board and main Front board and main board communication
Connection line is malfunction
Change new connection line
board communication line is obstructed.
malfunction displays
Socket CN2 on indoor board is not linked well Link CN2 well
E7
Four triode in the communication circuit may
Change a new computer board
be damaged
One or two button is
blocked
when pressing button
Buzzer is not sounded
switch on
has no response when
Front controlling board
switch on
No response when
Symptom
10. System flow chart
(1) Usage of the cooling medium
It adopts R22 and R407C as cooling medium. R22 and R407C are safe cooling medium
Compound manometer
which do no harm for human and are non-combustible. But if the
conditioner is installed in enclosed room, be sure to prevent
the cooling medium from leaking over the critical density.
The critical density of R22 is 0.3kg/m 3.
A
B
(2) Vacuum pumping of the system
Discharge the air inside the outdoor unit and cooling medium
vacuum pump
pipeline by vacuum pumping. Details as per the figure:
1) Fasten all of the jointer nut of the pipeline of the indoor
and outdoor units to make sure they are not leaking.
2) Under the condition that the maintenance valve (two
sides of liquid and gas) of the outdoor unit is
completely closed, pump vacuum through the
injection entrance of the maintenance valve.
3) After vacuum pumping ,loosen the nut used in
valve lever, then fasten the nut (used in valve
lever and injection entrance) under the condition
that the maintenance valve (both two sides of
liquid and gas) is completely open.
HDU-42H(C)03/M HDU-42HA03/M(R1) HDU-36HA03/M(R1):
A: three-way valve
steam pipeline 19.05mm
B: two-way valve
liquor pipeline 9.52mm
HDU-28H(C)03/M HDU-28HA03/M(R1):
A: three-way valve
steam pipeline 15.88mm
B: three-way valve
liquor pipeline 9.52mm
(3) Pipeline system chart
Piping Systematic Diagram for Cooling/Heating Type Air Conditioner
Indoor Unit
Stop
Valve
Cooling Operation
Heating Operation
Outdoor Unit
Filter
One-way Valve
Capillary Tube
Reversing Valve
Heat Exchanger
Heat Exchanger
Quieter
Compressor
Stop
Valve
(4)Type and major features of the compressor:
HDU-42H(C)03/M : The compressor adopts piston type product, with strong power and
smooth operation But it is incomparable with the swirl-type compressor on noise and efficienvy.
HDU-28H(C)03/M: The compressor adopts swirl-type product to avoid leakage
owing to abrasion.The cooling output is constant.It has very strong adaptability under critical work
condition. It has low work noise, high-efficiency and energy-saving feature. It reduces the moving
parts to control the probability of breakdown.
11.Installation and maintenance
(1) Installation tools
1 Cross screwdriver 2 Metal saw 3 70mm drill 4 Spanner(17,27mm
diameter)
5 Spanner(14,17,19,27mm diameter) 6 Pipe cutter
7 Pipe expander 8 Knife
9 Pliers
10 Leak detector or soap liquor
11 Measuring tape 12 Scraper 13 Refrigeration oil
14 Vacuum pump
15 Flat screwdriver
(2) Standard accessories
Remarks
1
Wire remote
controller
2
Small clip
3
Big clip
Shape,
name
4
Heat
insulator
5
6
Noncohesive
tape
Screw 5X25
Quantity
1
6
2
2
1
4
Remarks
7
8
9
10
11
12
Steel nail
Sealing pad
Rubber
gasket
Washer
4
8
Shape,
name
Quantity
12
4
(3)Installation sketch of indoor/outdoor unit
Cooling
oil
1
Plastic
clamp
6
a. HDU-42HA03 Installation sketch of indoor unit
fgthrtyheju
a.
HDU-42HA03 HDU-42HA03/M(R1) HDU-36HA03/M(R1) Installation sketch of indoor unit
70
Planform
75
>1000
545
690
750
>100
57
1406
1600
1660
Obstruction
b.HDU-28HA03 HDU-28HA03/M(R1) Installation sketch of indoor unit
137
30
>100
>50
30
70
Planform
75
>1000
545
690
750
>100
57
970
1164
1224
Obstruction
c. HDU-42HA03 HDU-42HA03/M(R1) HDU-36HA03/M(R1)
>1000
>1000
>100
>100
>150
>100
>150
>600
>600
4) Installation procedures and points of attention:
a. Preparation before installation:
(1) See to Figure 4 for the position relationship between the ceiling opening and
the unit and the suspension screw bolt.
(2) If there's existing ceiling, make the opening for installation on the ceiling.
Attention: After installation, be sure to strengthen the ceiling frame to keep
the ceiling even and avoid vibration.
b. Install the indoor unit
(1) Adjust the unit to proper installation position.
(2) Check if the unit is horizontal. Check the four corner of the unit in turn with
plastic hose filled with water or horizontal detector.
(3) Remove the gasket locating plate used to prevent the gasket from dropping.
Fasten the nut.
30
d. HDU-28HA03 HDU-28HA03/M(R1) Installation sketch of outdoor unit
Installation sketch of outdoor unit
>100
137
30
>100
>50
c. Cooling medium fitting pipe
(1) The size of the fitting pipe shall accord with the requirement of the model:
28000Btu/h unit:(liquid)
9.52
(gas)
15.88
42000Btu/h unit:(liquid)
9.52
(gas)
19.05
(2) Material requirement for the fitting pipe: TP2M or T2M()
(3) Thermal insulation layer outside the fitting pipe: adopt XPE materials
(4) In installation the conical nut shall be smeared with cooling oil both inside
and outside.
(5) To add extra fitting pipe and make welding point at middle part, be sure to
protect with nitrogen filling, and check if the connection pipe is leaking gas.
(6) Make thermal insulation and sealing at the jointer part. Otherwise it will
influence the cooling effect and produce condensation.
(7) Keep the copper pipe dry and clean.
d. Install the drain pipe
(1) The diameter of the drain pipe shall be larger or equal to the diameter of the
connection pipe ( size of the connection pipe: 18mm; outside diameter:
26mm)
(2) The drain pipe shall be short. The drop slope shall be at lease 1/100 to avoid
gas-bag. Reduce elbow as far as possible.
(3) To avoid bending of the drain pipe, keep 1-1.5m distance between hangers.
(4) Make thermal insulation and sealing for the indoor drain pipe. Otherwise it
may produce water drops.
(5) The drain pipe shall adopt hard PVC pipe as materials.
e. Installation circuit
5. Check after installation:
a. If the indoor unit is installed reliably
b. If the gas leakage test is performed
c. If the thermal insulation of the unit is complete
d. If the drainage is smooth
e. If the voltage of the power supply is in accordance with the nameplate of the product
f. If the wiring and pipeline are installed properly
g. If the unit id earthed safely
h. If the wire model is in accordance with the stipulation
i. If there are obstacles at the air outlet and inlet of the indoor /outdoor unit
j. If the length of the cooling medium pipe and the filling amount of the cooling medium
are recorded
12. Disassembly Instructions
Indoor units
Operation Procedure
Appearance of cassette type indoor
unit.
Remove the inlet grill
Remove the protect panel
Remove the drain pan
Photos
Disassembly Instructions
Indoor units
Operation Procedure
Remove the evaporator
Photos
Sincere Forever
Haier Group
Tel :86-532-8938396
Web site : http://www.haier.com