Download SERVICE MANUAL

Domestic Air Conditioner
SERVICE MANUAL
Models
HSU-22H03/R2(DB)
l Features
l
l
l
l
Comfortable:wide -angle airflow
health air purifying
quiet operation
energy efficient
Serial Number:
Version:00.00
1
Edition: 2005-11-16
Domestic Air Conditioner
Model: HSU-22H03/R2(DB)
Content
1.
2.
3.
4.
Description of product model coding and series introduction--3
Specifications -------------------------------------------------------------6
Curves of performance of compressor-------------------------------8
Description, net dimensions and functions of main component s
and accessories------------------------------------------------------------10
5. Knock-down drawings and part lists ---------------------------------13
6. Brief introduction to electrical control functions ------------------18
7. Wiring diagram ----------------------------------------------------------30
8. Circuit diagram ------------------------------------------------------------33
9. Abnormity diagnosis ------------------------------------------------------- 36
10. Trouble shooting ------------------------------------------------------------38
11. Refrigerating cycle diagram ------------------------------------------40
12. Noise level test chart and air velocity distribution -------------------------- 42
13. Installation manual -----------------------------------------------------45
2
Domestic Air Conditioner
Model:
HSU-22H03/R2(DB)
DESCRIPTION OF
PRODUCT MODEL CODING
& SERIES INTRODUCTION
3
Domestic Air Conditioner
Model:
HSU-22H03/R2(DB)
Introductory Remarks
Description of coding rules of unit model
Coding rules and descriptions are as follows:
1
2
3
4
5
6
7
8
9
10
11
Inverter type:(DB),(B)
Refrigerant type:R1(R407C),R2(R410A)
Applicable voltage:3(220~230V),4(240V)
Applicable frequency:0(50HZ),1(60HZ)
Developing sequence :A,B,C,D...
L/C-cooling only
Function code R/H-heat pump
E-electric aided heating
Nominal cooling capacity (BTU/h)with the first two
numbers based on thousand unit
The structure code of indoor & outdoor unit: S(wall-mounted),W(window type),P (cabinet type)
H-Abbreviation of Haier
Examples:
HSU-22H03/R2(DB) represents wall-mounted split type heat pump DC inverter air conditioner .
and "R2" means
The cooling capacity is 22000BTU/h and the power supply is 230V/50Hz
the refrigerant is R410A.
4
Domestic Air Conditioner
Model:HSU-22H03/R2(DB)
Description of product model coding and series introduction
Standard Situation/Conditions
No.
Operating condition
indoor air status
DB C
WBOC
outdoor air status
DB C
WBOC
1
Norminal cooling
27OC
19OC
35OC
24OC
2
Norminal heating
20OC
Not control
7OC
6OC
3
Norminal electrical
heating
---
---
O
---
---
O
C.Series brief introduction
1.comfortable:wide-angle airflow
The vertical dual-flap and horizontal wide-angle louvers ensure the cool (warm) air reaches
every corner of the room.
2.Health air purifying
An air purifying filter with deodorizing and disinfecting functions keeps the air clean and users
healthy.
3.Quiet operation
Fan With Random-pitched Blades.
Random-pitched blades help reduce operating noise while maintaining a high airflow rate.
4.Energy efficient
The design of inner-grooved copper tube greatly increases the refrigerant contact area and
the efficiency of cooling/heating functions.
5.Convenience
Auto restart and washable panel:
The grille can be removed and washed easily when necessary. With Auto restart function the
unit will automatically return to the operating settings in use before the power failure when
power is restored.
6.Wide variety of functions
24-Hour Timer:
24-hour timer allows users to select the exact time they would like the air conditioner to turn on
and to turn off. Timers on previous models operation are based on the number of hours of desired
operation.
7.Night-set models
When the air conditioner is operating on the timer-off circuit.The preset room temperature
gradually rises (going down in heating) before the unit stops as shown below. Users can sleep
comfortably without sudden change in temperature.
8.Program”dry”
This function automatically reduces the level of humidity while maintaining the preset indoor
temperature.
5
Domestic Air Conditioner
Specifications
6
Model:HSU-22H03/R2(DB)
Domestic Air Conditioner
Model:
Domestic Air Conditione
HSU-22H03/R2(DB)
Model: HSU-22H03/R2(DB)
Specifications
Model: HSU-22H03/R2(DB)
Cooling capacity(W)
6000(720-6300)W
Cooling coefficient (W/W)
Cooling power input (W)
Moiture removal (m/h)
3.03
Heating coefficient(W/W)
1980(310-2450)W
3
Heating capacity(W)
-3
2.3 X10
Heating power input(W)
Frequency range(Hz)
Operating voltage range V( )
230
Refrigerant type
Operating temp.range OC( )
-7-43
Variation of temp.adjust OC( )
+1
Climate type:
T1
Class of electric shock
44/39/37
44/39/37
Net dimensions mm
(indoor unit)
Packaging dimensions mm
(indoor unit)
Net/gross weight (kg)
(indoor unit)
Max. mounting height
Refrigerant charge(g)
(R410A)
Compressor model
Compressor oil charge (cc)
Maxi. length of connecting
pipe (m)
Cap. tube type muffle
model:
cool
heat
(outdoor unit)
two-way
Cut-off vavle(inch) three-way
Max. operating pressure at
2060W(430-2600)W
50
outdoor unit
Outdoor unit noise
(cooling)
60O
Cross flow fan
Axial flow fan
I
56
Outdoor unit noise
(heating)
Net dimensions mm
(outdoor unit)
Packaging dimensions mm
(outdoor unit)
Net/gross weight (kg)
(outdoor unit)
56
810×288×680
915×325×699
45/53
indoor unit
8
outdoor unit
Current entering side
(indoor/outdoor)
4
Piling layers
indoor
Once/2 weeks
Max. refrigerant charge (g)
15
C-6RVN93H0N
Compressor manufacturer
HUARUN
350(poe)
Compressor protector type
drain hose length(mm)
diametre(mm)
Internal
2000
16
15
1/4
Type of tube of evaporator
and condenser
Size of tube of evaporator
and condenser(mm)
Appearance features of indoor
unit
Appearance features of outdoor
1/2
unit
TP2Y
Fan speed(r/min)
warm side(Mpa)
11/14
1900
Frequency of filter cleaning
(indoor unit)
990×260×315
5
difference(m)
Fan speed(H/M/L)(r/min)
938×182×265
3.01
R410A
Air sending angle
indoor unit
Fan type
Indoor unit noise
(cooling)
Indoor unit noise
(heating)
6200W(1080-7750)W
1350/1250/1150
1350/1250/1150
760
Max. operating pressure at
4.15
cool side(Mpa)
7
Internal thread
Ø 6.35 / Ø 12.7
plastic
metal
4.15
Domestic Air Conditioner
Model:
HSU-22H03/R2(DB)
Curves of performance of compressor
8
Domestic Air Conditioner
Model:HSU-22H03/R2(DB)
Curves of cooling capacity and heating capacity as a function of outdoor
temperature(-7OC~43OC)
150
140
130
120
15
110
20
100
25
90
15
20
25
9
Domestic Air Conditioner
Model:
HSU-22H03/R2(DB)
Description,dimensions and functions of
main components and accessories
10
Domestic Air Conditioner
Model: HSU-22HV03/R2(DB)
Test running switch(manual)
Used only for test running in cooling
when room temp. is below 16oC.
Don't use it in normal operation.
Inlet grille
Emergency switch(manual)
Used when remote controller is lost or
defective. Unit will run temporarily.
Remote signal receiver
Air filter
A beeping sound is generated when
a signal from remote controller is
received.
Vertical flap
Power indicator
Timer mode indicator
Operation mode indicator
Use remote controller to
adjust up and down air flow.
(Don't adjust it manually.)
Lights up when unit starts.
Lights up when Timer operation
is selected.
Lights up during compressor
running.
For model: HSU-22H03/R2(DB)
11
Domestic Air Conditioner
Model: HSU -22H03/R2(DB)
NET DIMENSIONS: Indoor unit for HSU-22H03/R2(DB)
938
265
182
690
NET DIMENSIONS: outdoor unit for HSU-22H03/R2(DB)
113.5
583
810
12
Domestic Air Conditioner
Model:HSU-22H03/R2(DB)
Knock-down drawings and part lists
13
Domestic Air Conditioner
14
Model: HSU-22H03/R2(DB)
Domestic Air Conditioner
No. in
Spare parts
explode
number
d view
Spare parts description
in english
HSU-22H03/R2(DB)
Failure
rate
Model
Qty.
１
１
１
１
１
１
１
１
１
１
１
１
１
１
１
１
１
１
１
１
1
0.0
１
１
１
１
１
１
0.1
1
0010807073
Indoor elecrtic box
HSU-22H03/R2(DB)
2
0010403617
PCB
HSU-22H03/R2(DB)
3
001A0600287
Riever
HSU-22H03/R2(DB)
4
001A1431717
Motor cover
HSU-22H03/R2(DB)
5
001A3900059
Coil cover
HSU-22H03/R2(DB)
6
0010400633
transformer
HSU-22H03/R2(DB)
7
001A40001６１
Terminal block
HSU-22H03/R2(DB)
8
----
Wires
HSU-22H03/R2(DB)
9
001A1231134
Front panel
HSU-22H03/R2(DB)
10
001A1231135
Front grille
HSU-22H03/R2(DB)
11
001A0100276
Frame assy.
HSU-22H03/R2(DB)
12
001A1431494
Service cover
HSU-22H03/R2(DB)
13
001A3000088
Motor cover
HSU-22H03/R2(DB)
14
0010202227
Fan
HSU-22H03/R2(DB)
15
001A0300005
Bearing
HSU-22H03/R2(DB)
16
001A0900104
Drain horse
HSU-22H03/R2(DB)
17
001A3000008
Motor cover
HSU-22H03/R2(DB)
18
001A1231139
Flap
HSU-22H03/R2(DB)
19
001A0900011
Dain horse
HSU-22H03/R2(DB)
20
0010707193
Heat exchanger
HSU-22H03/R2(DB)
21
001A2400080
Air filter
HSU-22H03/R2(DB)
22
0010101275
Mounting plate
HSU-22H03/R2(DB)
23
001A1431368
Piping support
HSU-22H03/R2(DB)
24
001A1431038
Piping clamp
HSU-22H03/R2(DB)
25
0010403894
Remote controller
HSU-22H03/R2(DB)
26
001A1434039
Drain horse
HSU-22H03/R2(DB)
The proportion
of the spare remark
part stock
X
0.1
0.2
*
0.2
*
0.0
X
0.1
0.2
*
0.1
0.2
*
0.1
0.1
0.1
0.1
0.2
*
0.2
*
0.2
*
0.1
0.1
0.1
0.1
0.1
0.1
0.2
*
0.2
*
0.1
27
001A1231140
Flap
HSU-22H03/R2(DB)
0.1
1,The failer rate and the proportion of the spare-part stock are regarded as the reference of the stock for spareparts;The first time should be stocked accroded with the proportion of the spare-parts,and it should be adjusted with
the actual quantity 3 months later.
2,easy-damaged;The spare-part which is often damaged and the customer must stock in the spare-parts
warehouse,and should be marked with"*"
3,possible damaged:The spare-part which is not often damaged like the easy damaged one and the customer may
stock in the spare-part warehouse accord with the actual case,should be marked with " ".
4,not need provided :The spare-part which is seldom damaged or the maintenance man could not maitmains.The
spare parts may be air freighted by the factory if they were damaged.The customer nees not stock in the spare-part
warehouse,should be marked with " x ".
5,Above should be improved accord with the reply of the market half a year per time.
6.The spare parts price on net is FOB Qingdao term.
15
Domestic Air Conditioner
Model: HSU-22H03/R2(DB)
17
22
21
19
20
24
1
2
3
4
26
5
25
6
8
7
9
12
23
13 14
11
18
10
15
16
KNOCK-DOWM DRAWINGS FOR OUTDOOR UNIT
16
Domestic Air Conditioner
Model: HSU-22H03/R2(DB)
Edition:2005/11/16
No. in
exploded
view
Spare parts number
Spare parts description in
english
Model
Qty
Failure
rate(%)
The proportion
of the spare
part stock
Remark
1
001A1303126A
Front grille
HSU-22H03/R2(DB)
1
outdoor
2
001A1101038
Front panel
HSU-22H03/R2(DB)
1
outdoor
3
001A2331024
Axial fan
HSU-22H03/R2(DB)
1
outdoor
4
0010403895
Motor
HSU-22H03/R2(DB)
1
outdoor
5
001A1301133
Bracket for fan motor
HSU-22H03/R2(DB)
1
outdoor
6
0010705512
Condenser
HSU-22H03/R2(DB)
1
outdoor
7
001A0100356
Side panel(left)
HSU-22H03/R2(DB)
1
outdoor
8
001A1436182
Handle
HSU-22H03/R2(DB)
1
outdoor
9
001A0100124
Panel(top)
HSU-22H03/R2(DB)
1
outdoor
10
001A0100125
Service cover
HSU-22H03/R2(DB)
1
outdoor
11
001A0100997
Side panel(fight)
HSU-22H03/R2(DB)
1
outdoor
12
0010806797
Electric box assy.
HSU-22H03/R2(DB)
1
outdoor
13
0010703520
4-wan valve coil
HSU-22H03/R2(DB)
1
outdoor
14
---
Tube assy
HSU-22H03/R2(DB)
1
outdoor
14-1 0010706999
Discharging tube assy.
HSU-22H03/R2(DB)
1
outdoor
14-2 0010707000
Suction tube
HSU-22H03/R2(DB)
1
outdoor
14-3 0010707001
Suction tube assy.
HSU-22H03/R2(DB)
1
outdoor
14-4 0010707002
Discharging tube assy.
HSU-22H03/R2(DB)
1
outdoor
15
0010706999
Capillary assy.
HSU-22H03/R2(DB)
1
outdoor
16
0010705987
Service valve
HSU-22H03/R2(DB)
1
outdoor
17
0010705989
Service valve
HSU-22H03/R2(DB)
1
outdoor
18
---
Nut
HSU-22H03/R2(DB)
1
outdoor
19
---
Service cover
HSU-22H03/R2(DB)
1
outdoor
20
---
Nut
HSU-22H03/R2(DB)
1
outdoor
21
0010707200
Compressor
HSU-22H03/R2(DB)
1
outdoor
22
---
Rubber cushion
HSU-22H03/R2(DB)
1
outdoor
23
---
Wire group
HSU-22H03/R2(DB)
1
outdoor
24
001A17621543
Pad
HSU-22H03/R2(DB)
1
outdoor
25
0010806754
Bottom plate assy.
HSU-22H03/R2(DB)
1
outdoor
26
0010800009
Separating plate
HSU-22H03/R2(DB)
1
outdoor
1,The failer rate and the proportion of the spare-part stock are regarded as the reference of the stock for spare-parts;The first time should
be stocked accroded with the proportion of the spare-parts,and it should be adjusted with the actual quantity 3 m
2,easy-damaged;The spare-part which is often damaged and the customer must stock in the spare-parts warehouse,and should be marked
with"*"
3,possible damaged:The spare-part which is not often damaged like the easy damaged one and the customer may stock in the spare-part
warehouse accord with the actual case,should be marked with " ".
4,not need provided :The spare-part which is seldom damaged or the maintenance man could not maitmains.The spare parts may be air
freighted by the factory if they were damaged.The customer nees not stock in the spare-part warehouse,should be marked wit
5,Above should be improved accord with the reply of the market half a year per time.
6.The spare parts price on net is FOB Qingdao term.
17
Domestic Air Conditioner
Model:
HSU-22H03/R2(DB)
Brief introduction to electrical
control functions
18
Domestic Air Conditioner
Model:
HSU-22H03/R2(DB)
One. Basic Control
1. Function Display
Lights up when unit starts.Lights up when Timer operation is selectedn；
2. Temperature Adjustment Function
In temperature adjustment function, operation frequency of outdoor unit is
determined based on indoor temperature and set temperature.
During wind speed adjustment, indoor fan PI（D）is controlled as per the needs of
temperature adjustment.
3. Compressor Off
Compressor is off when indoor temperature is 1o above set temperature (heating
mode) / 1o below set temperature (cooling mode).
4. Compressor On
Compressor is on when indoor temperature is -0.67o below set temperature (heating
mode)/ 0.67o above set temperature (cooling mode).
5. Remote Control Operation
In remote control, if temperature changes, PI operation will start in 2s.
If change of set temperature is towards compressor off, compressor will shut down
when it falls into compressor-off temperature range.
6. Indoor Fan Rotate Speed
Mode
Heating
Cooling
Wind
Speed
Weak
650
Low
950
Middle
1050
High
1150
Super High
--
Weak
650
Low
950
Middle
1050
High
1150
Super High
Ventilation
Rated
Rotate Speed（rpm）
--
Low
950
Middle
1050
High
1150
Cooling
Heating
1350
1350
19
Domestic Air Conditioner
Model:
HSU-22H03/R2(DB)
Two. Operation Mode:
1. Half-automatic Operation Mode
Half-automatic function is based on original automatic function.
a. Cooling & Heating Model Unit
When system is on and operation mode switches to automatic, the system will
determine operation mode based on the difference of current set temperature and room
temperature and will start operation as per mode determined. In the following selective
conditions, Tr represents room temperature and Ts represents set temperature.
Upon initial entry into automatic mode, operation mode is selected as per the
following conditions:
Tr≥Ts-3℃
Cooling mode is selected
Tr＜Ts-3℃
Heating mode is selected
When entering automatic mode, the system can switch between cooling and
heating mode corresponding to change of room temperature: If the unit is currently in
cooling mode, compressor will shut down when temperature falls into compressor off
temperature range. 15 minutes after compressor is off, compressor will perform
temperature check, at which time if Tr＜Ts-3℃ the system will enter heating mode
otherwise it will remain in cooling mode. If the unit is currently in heating mode,
compressor will shut down when temperature rises into compressor off temperature
range. 15 minutes after compressor is off, compressor will perform temperature check, at
which time if Tr＞Ts+3℃ the system will enter cooling mode otherwise it will remain in
heating mode.
2.Cooling Mode:
*Temperature Control Range:16℃---30℃
*Temperature Difference: ±1℃
*In the first 2 minutes after compressor starts, it is not under the control of
temperature sensor.
*Control Feature: When Tr（air intake）>Ts（set）℃,compressor external air fan is on,
indoor fan operates at set speed.
When Tr（air intake）<Ts（set）,compressor external air fan is off,
indoor fan operates at set speed.
When Tr= Ts, the system will remain its original state.
*Wind Speed Control:（temperature difference 1℃）
Automatic: When Tr>=Ts+3℃, high wind；
When Ts+1℃≤Tr　Ts+3℃, middle wind；
When Tr<Ts+1℃, low wind
Temperature sensor is off and air fan is in low wind speed
Manual: High, middle, low and automatic wind may be set as needed when
unit is on. (The unit will act 5s after receiving remote control signal.)
*Compressor Control: Compressor is not under the control of temperature sensor in
the first 2 minutes after it starts and compressor can only restart at least 3 minutes after it
shuts down. There is no 3-minute protection at initial energization. (There are power
cutoff compensation and 3-minute protection features).
20
Domestic Air Conditioner
Model:
HSU-22H03/R2(DB)
* In case change of set temperature by remote control meets the condition of unit
shut down or unit is powered off manually, the operation is not restricted by the 2-minute
non-response feature and the unit will shut down immediately.
3.Dehumidification Mode:
*Temperature Control Range:16---30℃
*Temperature Difference :±1℃
*Control Feature: When Tr >Ts +2℃, compressor operates at normal state and
indoor fan operates at set speed.
z When Tr is between Ts+2℃ and Ts, compressor operates at low frequency
and fan is in weak wind mode.
zF Tr <Ts, compressor and external fan will shut down, and indoor fan will stop
for 3 minutes and then enters weak wind mode.
zF There is ±1℃ set temperature difference in each mode.
*Wind Speed Control:
Automatic When Tr >=Ts +5℃, high wind；
When Ts +3℃≤Tr <Ts+5℃, middle wind；
When Ts+2℃≤Tr <Ts+3℃, low wind;
When Ts≤Tr<Ts+2℃, intermittent operation at weak wind;
Tr <Ts, fan will standby for 3 minutes and indoor fan is off
(except oxygen or fresh air feature is set)
Tr<Ts, fan will standby for 3 minutes and enter weak wind mode.
*Compressor Control: Compressor is not under the control of temperature sensor in
the first 2 minutes after compressor starts and compressor can only restart at least 3
minutes after it shuts down. There is no 3-minute protection at initial energization. (There
is 3-minute protection if the unit has power outage compensation feature.
* In case change of set temperature by remote control meets the condition of unit
shut down or unit is powered off manually, the operation is not restricted by the 2-minute
non-response feature and will shut down immediately.
4.Heating Mode:
*Temperature Control Range:16---30℃
*Temperature Difference :±1℃
*Control Feature: When for the first time Tr≤Ts, compressor, four-way valve and
external fan are turned on and indoor fan operates at anti cold wind mode. +4o
temperature compensation will automatically be added on entering heating mode.
When Tr >Ts+5, external fan of compressor is off and indoor fan will operate in
residual heat blow mode.
When Tr<Ts+5, compressor, four-way valve and external fan are turned on and
indoor fan operates at anti cold wind mode.
*Indoor Fan Control:
Manual Control:
High, middle, low and automatic wind may be set as needed
Automatic Control: when Tr >Ts, high wind, when Ts>=Tr> Ts+2℃, middle wind,
when Tr> Ts+2℃, low wind.
There is no delay when wind speed rise from low to high speed while there is a
3-minute delay when wind speed fall from high to low speed (Fan will operates in high
wind for 3 minutes). The unit can restart at least 3 minutes after shut down. There is no
3-minute protection at initial energization. (There is 3-minute protection if the unit has
power outage compensation feature.
*Compressor Control: Compressor Control: Compressor is not under the control of
temperature sensor in the first 2 minutes after compressor starts and compressor can
only restart at least 3 minutes after it shuts down. There is no 3-minute protection at initial
energization. (There is 3-minute protection if the unit has power outage compensation
21
Domestic Air Conditioner
Model:
HSU-22H03/R2(DB)
feature.
*In case change of set temperature by remote control meets the condition of unit
shut down or unit is powered off manually, the operation is not restricted by the 2-minute
non-response feature and will shut down immediately.
*Anti Current Surge: External fan starts 2s after compressor is on. *Timed Power On
& Off Feature *Sleep Control Feature
*Four-way Valve Control: Four-way valve is on 10s prior to compressor startup and
off 2 minutes and 30 seconds after compressor shutdown.
*Anti Cold Wind Operation:
（1）Compressor operation or compressor operation after defrosting. When indoor
heat exchanger temperature is below 23℃, indoor fan is off; when indoor heat
exchanger temperature is above 23℃, fan operates in weak wind mode.
（2）If, after 4 minutes, coil temperature can not exceed 38℃, fan will operate at set
speed.
（3）If coil temperature exceed 38℃, fan will operate at set speed.
（4）If coil temperature falls below 38℃ when compressor is running, fan will still
operate at set speed.
*Residual Heat Blow: Temperature sensor is off: If coil temperature is above 23℃,
fan will enter weak wind mode, if coil temperature below 23℃, indoor fan will stop.
Remote Control Shut Down: Deflector will close after set wind blows for 1 minute.
*Automatic Temperature Compensation in Heating Mode
1 Condition: Compressor shutdown time is less than 5 minutes
2. Operation Rule:
1）Ts =Trc+5℃+（Trc -Tt [The instant when compressor starts up] ）
2）Trc-Tt[The instant when compressor starts up] ≤2℃
Note: The above two conditions are not applicable to initial start-up.
3 ） Press “–”temperature key on remote control, and resume Ts =Trc+5℃
operation; Press “+”temperature key on remote control, it will operate based on
automatic compensation set value.
4）If Trc -Tt[before compressor is on] ≤0℃, it will operate as per Ts=Trc+5.
3. If ventilation door is in healthy up-flow position, set temperature in heating mode
will be increased by 2℃on its original basis.
5.Defrosting Mode
Air fan will engage in anti cold wind operation based on the data sent by heat
exchanger temperature sensor. Sensor fault will not be checked within the first 2 minutes
after exiting defrosting mode.
6. Negative Ion Health Feature Control
When receiving remote control signal, if fan is operating, negative ion generator will
start working to discharge negative ion.
If air fan is off, negative ion generator will be off.
When negative ion generator is off, if health feature is set, then negative ion
generator will turn on when fan start operation again.
7. Timed Operation
22
Domestic Air Conditioner
Model:
HSU-22H03/R2(DB)
Time count starts based on time difference between timing clock and current clock.
Time off may be set and operation will stop when unit receives time off signal.
Timed on may be set and operation will start when unit receives time on signal.
Timed on/off may be set, which will be performed as per set sequence.
8. Sleep Operation
8－1.In cooling/dehumidification mode, set temperature will rise by 1℃ after one
hour of operation and it will rise another 1℃ after another hour. The unit will shut down
after operation for another 6 hours.
8－2.In heating mode, set temperature will fall 2℃ after one hour and it will fall
another 2℃ for another hour and it will rise 1℃ after another 3 hours and the unit will
shut down operation after another 3 hours.
8－3 If wind speed of indoor fan is high before setting sleep mode, then it will switch
to middle wind after sleep mode is set. If wind speed of indoor fan is middle before
setting, it will switch to low level after setting. If wind speed of indoor fan is low before
setting, then it will remain unchanged after setting.
9.Trial Operation
Wind speed is high and trial operation will end in 30 mins, and unit will shut down. In
trial operation, the unit will exit trial operation mode when receives remote control signal
and low load protection will not be activated.
10.EEPROM Control
When outdoor unit is supplied with power, if EEPORM parameter is inconsistent with
checksum, EEPROM faults.
When indoor unit receives EEPROM fault signal from outdoor unit, it will display
outdoor unit EEPROM fault.
At this time, control and emergency operation are not accepted and the fault can only
be relieved by power off.
Three. Special Function
1.Power-off Compensation
a Entry Condition: Press sleep key 10 times in 7s and buzzer sounds 4 times and the
current status is saved into indoor unit EEPROM upon the entry.
b. On entering power-off compensation operation, indoor unit operates as per the
following procedures:
The unit operates as per condition set by remote control and emergency setting and
current status is saved into indoor unit EEPROM.
c. Exit Condition: Press sleep key 10 times in 7s and buzzer sounds 2 times
2. Rated Operation
① Rated Cooling
a. Entry Condition: The unit will enter rated cooling upon receipt of remote control
signal.
b. Indoor unit will operate as per the following procedures when entering remote
control cooling mode:
Air fan will enter manual high wind (or rated wind) operation, panel will display
cooling and rated data signal is in communication.
c. Exit Conditions: The unit will exit rated operation when receiving remote control or
press-key signal and it will enter the mode set by remote control and press key.
23
Domestic Air Conditioner
Model:
HSU-22H03/R2(DB)
② Rated Heating
a Entry Condition: The unit will enter rated heating upon receipt of remote control
signal.
b Indoor unit will operate as per the following procedures when entering rated
heating mode:
Air fan will enter manual high wind (or rated wind) operation, panel will display
heating and rated data signal is in communication.
c Exit Conditions: The unit will exit rated operation when receiving remote control or
press-key signal and it will enter the mode set by remote control and press key.
3. Emergency Switch:
When unit is in shutdown condition, press emergency switch down for less than 5s,
the unit will start emergency operation.
When unit is in shutdown condition, press emergency switch down for more than 5s
but less than 10s, the unit will start trial operation.
When shutdown, press emergency switch down for more than 10s but less than 15s,
it will display the previous fault.
When unit is in shutdown condition, press emergency switch down, the panel will
display automatic operation.
When fault occurs, press emergency switch and the unit will shut down and fault is
cleared.
During fault display, press emergency switch will end fault display mode.
24
Domestic Air Conditioner
Model:
HSU-22H03/R2(DB)
One. System Major Function
Sensor Code Definition: Tai= Indoor Ambient Temperature, Tao=Outdoor Ambient
Temperature, Tc1=Indoor Coil, Td= Air Discharge, Te= Outdoor Coil, Ts=Air Intake
1.1: Outdoor Unit Operation Frequency and Control
1.1.1: Compressor Operation Frequency Control
z Compressor Operation Frequency Range:
Outdoor Temperature
~0℃
0℃~
Heating
17RPM
110RPM
17RPM
120RPM
Cooling
20RPM
110RPM
20RPM
120RPM
Defrosting
88rpm
1.1.2: Compressor Startup
Regardless of target frequency of indoor unit, each time when compressor is from off to on, it
must maintain 60Hz and 90Hz for one minute respectively (Frequency will be immediately
decreased under the condition that outdoor unit air discharge temperature overheating protection
is activated or overcurrent of compressor) then the compressor will operate towards target
frequency. This process does not exist in normal operation of unit.
1.1.3:Heating:
z When completing compressor startup operation, it will operate as per frequency of
indoor unit.
z After 2 minutes, compressor operation frequency will be compensated as per relevant
conditions.
1.1.4 Cooling & Dehumidification:
z When completing compressor startup operation, it will operate as per frequency of
indoor unit.
z After 2 minutes, compressor operation frequency will be compensated as per relevant
conditions.
1.1.5: Compressor Frequency Increase/Decrease Speed
Rapid Frequency Increase/Decrease Speed 1 ----------1HZ/s
Slow Frequency Increase/Decrease Speed 2 -----------1HZ/10s
1.2: Outdoor Fan Control
1.2.1: Wind speed control when AC fan is adopted for outdoor unit.
z Whether to use AC fan or DC fan is determined by EEPROM
z Residual Heat Blow: After compressor shuts down in cooling mode, fan will run for 30s at low
speed before stop.
z Wind Speed Adjustment Table (when compressor starts up for 3 minutes)
Ambient Temperature
~10
10~25
25~
Cooling & Dehumidification
Low Wind
Low Wind
High Wind
Heating
High Wind
Low Wind
Low Wind
z Wind Speed Adjustment Table
(based on ambient temperature and compressor frequency after compressor runs for 3
minutes)
Cooling Compressor Frequency
F<25Hz
25Hz<=F<45Hz
45Hz<=F
Above 28℃
Low Wind
High Wind
High Wind
Tao
Below 28℃
Low Wind
Low Wind
High Wind
Heating Compressor Frequency
F<25Hz
25
25Hz≤F<45Hz
45Hz≤f
Domestic Air Conditioner
Tao
Above 15℃
Below 15℃
Low Wind
Low Wind
Model:
HSU-22H03/R2(DB)
Low Wind
High Wind
High Wind
High Wind
1.3: Four-way Valve Control
z Defrosting Four-way Valve Control，(please see defrosting process for details)
Time sequence of the defrosting operation is as follows:
Compressor
Outdoors fan motor
Four-way valve
60×9Max
Four-way Valve Work Status in Other Modes:
In heating mode, four-way valve is on. If compressor is off or is switched to non-heating
mode, four-way valve ensures that it is off at least 2 minutes after compressor shuts down.
1.5 Outdoor Defrosting Control
A. Defrosting Mode Entry Conditions
The unit will enter defrosting mode when compressor starts up and operates for 10 minutes
continuously in heating mode and accumulated running time exceeds 45 minutes (Upon
completion of defrosting or when switched to cooling mode, compressor accumulated operation
time will be cleared) and when 2 minutes’ continuous checking by defrosting sensor TE (check
frosting condition of outdoor unit heat exchanger) and outdoor ambient temperature sensor TA
meets the following conditions:
TE≤C×TA－α
Among which :C:TA＜0℃，C=0.8
TA≥0℃，C=0.6
For area prone to frost, the value is set at 6 when unit leaves the factory.
Defrosting entry temperature control -15℃≤C×TA－α≤-5℃
B. Defrosting Time Interval
z When data calculated by C×TA－αfalls into the range of -15℃≤C×TA－α, time interval
between two defrosting cycles is 45 minutes.
z When data calculated by C×TA－αfalls into the range of C×TA－α<-15℃, time interval
between two defrosting cycles is 65 minutes.
z C. Defrosting Operation
z When defrosting begins, compressor will stop for one minute, external fan is
running and 50s later, four-way valve will be off.
z When compressor starts, external fan will be off, compressor will run at 60HZ
for 60s then move on to target frequency of 88HZ.
z During defrosting, compressor current and air discharge overheat protection
features are effective. During defrosting, if compressor shuts down due to
activation of protection feature or due to malfunction, it will resume after 3
minutes. In the unit is still within defrosting cycle, it will resume defrosting and
startup of compressor will be based on the rule for defrosting startup. (The unit
will exit defrosting mode and handle fault in the event of 3 consecutive restart
failures.)
z On entering defrosting, it must guarantee that compressor will operate for a
minimum of 2 minutes in defrosting mode before exit.
D. Defrosting Exit Condition
z
26
Domestic Air Conditioner
Model:
HSU-22H03/R2(DB)
When one of the following conditions is met, defrosting operation will be switched to
heating operation.
（1）:Temperature of outdoor heat exchanger exceeds 7℃ for 80s continuously
（2）:Temperature of outdoor heat exchanger exceeds 12℃ for 5s continuously
（3）:Defrosting operation continues for 9 minutes.
E. When defrosting exit conditions are met, the unit will operate as follows
Compressor stops and external fan starts, 50s later, four-way valve will be on, 60s
later, compressor will operate as per startup process.
1.6:PTC Output Control
z When outdoor unit is energized, PTC output value is 0, 10s later, output value is 1.
z When compressor stops for 10 minutes continuously, PTC output value is 0.
z On receiving compressor startup instruction, initial PTC output is 1, and compressor
startup will be performed 5s later.
Two. System Protection Function
2.1:Time interval between compressor shutdown and restart is set at 3 minutes to ensure that
compressor will only restart after 3-minute shutdown and initial energization valves are turned on
to adequate opening position after being fully turned off.
2.2:TD High Temperature Protection
As long as unit is on, the TD air discharge overheat protection feature will be activated, yet
air discharge sensor fault must be alarmed 4 minutes after compressor starts.
TD（℃）
Abnormal Shutdown
117
rapid frequency drop（1HZ/s）
109
slow frequency drop (1HZ/10s)
98
invariable frequency
93
frequency rise (1HZ/10s)
90
frequency rise（1HZ/1s）
When TD>117℃ for 20s continuously，air discharge overheat protection will be activated and
fault will be reported to indoor unit.
In other protection features, there is no continuous allowance.
2.3: Indoor unit TC high temperature prevention and control in heating mode:
Indoor heat exchanger sensor will check temperature of indoor heat exchanger, if the
temperature is higher than 55℃,compressor rotate speed will be reduced to activate indoor heat
exchanger high temperature protection. When temperature of indoor heat exchanger falls below
48℃, normal control will be resumed.
TC
P
65
Slow Drop
Q
Maintain
R
Slow Rise
55
52
48
P: Drop at the speed of 1Hz/10s
27
Domestic Air Conditioner
Model:
HSU-22H03/R2(DB)
Q: Maintain the previous instruction cycle.
R: Rise at the speed of 1Hz/10s
If TC>=65℃，and continues for 5s，the unit will shutdown, outdoor fault indicator
lamp will blink and fault will not be reported to indoor unit.。
When compressor shutdown exceeds 3 minutes, and TC<48℃，compressor will
restart.
2.4.Overcurrent Prevention and Control
z During startup of compressor, if current is larger than 13A (The value is represented by A.)
for 3s, compressor will shutdown and alarm, After 3 minutes, compressor will restart. In
the event restart occurs 3 times in 10 minutes, compressor will stop and alarm to
determine the fault. Compressor can only continue operation when power is cut off.
z Overcurrent Frequency Drop Protection
When current is larger than 12 A，compressor frequency will drop at a speed of1HZ/s.
When current is lower than 12A and higher than11A, frequency drop will stop and
frequency will be increased at a speed of 1HZ/10s. When current is lower than 9A，target
operation frequency will be resumed.
2.5. Indoor Heat Exchanger Anti-freeze Protection
z Anti-freeze during cooling
11℃
9℃
7℃
6℃
5℃
When TC〈 5℃，compressor frequency will drop at a speed of 1HZ/10s
When TC starts to rise，and 6〈=TC 〈=7℃，compressor frequency will remain
unchanged.
When 7〈TC〈11℃, frequency will rise at a speed of 1HZ/10s.
If TC<=0℃，for 2 consecutive minutes, compressor will shutdown and outdoor fault
lamp blinks. Fault will not be reported to indoor unit.
When compressor shuts down for more than 3 minutes ， and when TC>7℃ ，
compressor will restart.
2.6.Outdoor Temperature Limit
Cooling: When outdoor temperature is lower than 15℃, cooling operation will start,
compressor frequency is limited to less than 50 HZ, outdoor wind speed is forced at level 1.
Heating: When outdoor temperature is higher than 20℃, heating operation will start,
compressor frequency is limited to less than 50 HZ, outdoor wind speed is forced at level 1.
2.7 Rated Operation
Rated Cooling:
When receiving the instruction of indoor unit rated operation, the unit will start rated cooling
operation.
Rated Heating:
When receiving the instruction of indoor unit rated operation, the unit will start rated heating
operation.
2.8: Special Features
1,Power Operation: When receiving indoor power signal, the unit will operate as per
frequency set by EEPROM, fan rotate speed is determined by ambient temperature and
frequency. Power operation will stop when indoor power signal is cancelled.
2,Silence Operation: When receiving indoor silence signal, the unit will operate as per
frequency set by EEPROM, fan rotate speed is determined by ambient temperature and
frequency. Power operation will stop when indoor silence signal is cancelled.
28
Domestic Air Conditioner
Model:
HSU-22H03/R2(DB)
3. Forced Cooling: When receiving indoor forced cooling signal, cooling operation will start
in a frequency signaled by indoor unit. Only air discharge temperature and overcurrent protection
features are effective and other protection features are invalid.
4. Rated, Middle and Minimum Capacity Operation: When receiving indoor, rated, middle
and minimum capacity operation signal, outdoor unit will operate as per wind speed and
frequency set by EEPROM and all the protection features are effective.
Three. Fault Display and Treatment
z In case outdoor unit faults, the alarm indicator lamp will blink and blink frequency is 1HZ，
Time interval between blink cycles is 3s.
z Alarm indicator lamp is off when there is no fault.
z Three are three ways of fault alarm.
It is ensured that fault alarm indicator lamp will blink for more than 2 minutes and 30s each
time.
（1）: Resumable Alarm, fault code is sent to indoor unit.
（2）: Resumable Alarm，if there are 3 consecutive non-resumable fault codes in 10 minutes,
it need to restart by cut off the power.
29
Domestic Air Conditioner
Model:
Wiring diagram
30
HSU-22H03/R2(DB)
Domestic Air Conditioner
31
Model:
HSU-22H03/R2(DB)
Domestic Air Conditioner
Model: HSU-22H03/R2(DB)
Wiring diagram of outdoor unit
ＯＵＴＤＯＯＲ　ＵＮＩＴ　ＷＩＲＩＮＧ　ＤＩＡＧＲＡＭ　００１０５５６８３０
ＷＡＲＮＩＮＧ
ＣＡＵＴＩＯＮ
ＲＥＡＣＴＯＲ
ＤＯＮ＇Ｔ　ＴＯＵＣＨ　ＣＡＰＡＣＩＴＯＲ，　ＥＶＥＮ　ＡＦＴＥＲ　ＰＬＵＧ－ＯＦＦ　（　ＤＡＮＧＥＲ　ＯＦ　ＥＬＥＣＴＲＩＣ　ＳＨＯＣＫ）
SPDU
Ｍ
(IPDU)
Ｂ
Ｗ
Ｒ
ＡＭＢＩＥＮＴ　ＴＥＭＰ．ＳＥＮＳＯＲ
ＣＮ１１
ＤＥＦＲＯＳＴ　ＴＥＭＰ．ＳＥＮＳＯＲ
ＣＮ１０
ＣＯＭＰ．ＴＥＭＰ．ＳＥＮＳＯＲ
Ｔｈｅ　ｃａｐａｃｉｔｏｒ　ｒｅｔａｉｎｓ　ｈｉｇｈ　ｖｏｌｔａｇｅ　ｅｖｅｎ　ａｆｔｅｒ　ｔｈｅ　ｐｌｕｇ－ｏｆｆ．　Ｆｏｒ　ｙｏｕｒ　ｓａｆｅｔｙ，　ｂｅ　ｓｕｒｅ　ｔｏ　ｗａｉｔ　ａｔ　ｌｅａｓｔ　５　ｍｉｎｕｔｅｓ．　ａｆｔｅｒ　ｐｌｕｇ　ｏｆｆ　ａｎｄ　ｕｓｅ　ａ　ｔｅｓｔｅｒ　ｔｏ　ｃｏｎｆｉｒｍ　ｔｈｅ　ｖｏｌｔａｇｅ　ｂｅｔｗｅｅｎ　ｃｏｎｎｅｃｔｏｒ　ＣＮ３　ａｎｄ　ＣＮ４　ｉｓ　ｌｅｓｓ　ｔｈａｎ　ＤＣ　１０Ｖ　ｂｅｆｏｒｅ　ｓｔａｒｔ　ｓｅｒｖｉｃｉｎｇ．
Ｎ（－） Ｐ（＋） ＲＩ
ＲＯ
（ＣＮ６） （ＣＮ５） （ＣＮ４） （ＣＮ３）
ＡＣＮ
ＡＣＬ
（ＣＮ１）
（ＣＮ２）
Ｗ
ＣＮ９
FUSE
ＣＡＰ　ＢＯＡＲＤ
Ｒ（Ｙ）
ＣＯＭＰＲＥＳＳＯＲ
ＯＵＴＤＯＯＲ　ＰＣＢ
４－ＷＡＹ　ＶＡＬＶＥ
T25A/250VAC
ＢＬ
FUSE
T3.15A/250VAC
ＴＥＲＭＩＮＡＬ　ＢＬＯＣＫ
ＴＯ　ＩＮＤＯＯＲ
ＦＩＬＴＥＲ
ＰＯＷＥＲ　ＳＵＰＰＬＹ
Ｒ（Ｙ）
ＯＲ
ＤＣ　ＭＯＴＯＲ
ＦＡＮ　ＭＯＴＯＲ
ＮＯＴＥＳ：
ＴＨＥ　ＰＡＲＴ　ＯＦ　ＤＯＴＴＥＤ　ＩＳ　ＯＰＴＩＯＮＡＬ
32
Ｙ：ＹＥＬＬＯＷ
Ｂ：　ＢＬＡＣＫ
Ｒ：　ＲＥＤ
ＯＲ：ＯＲＡＮＧＥ
ＢＬ：ＢＬＵＥ
Ｗ：　ＷＨＩＴＥ
Ｙ／Ｇ：ＹＥＬＬＯＷ
／ＧＲＥＥＮ
Domestic Air Conditioner
Model:
HSU-22H03/R2(DB)
CIRCUIT DIAGRAM
33
COM
RL1
1
CN11
FWHITE
FLZ
+12V
2W6.8K
R29
FLZ
CN12
220-N
FRED
FLZ
2
1
CN5
AC-N
C19
1.2uF/450VAC
AC-L
C
PGO
IN4007
D6
IN4007
D7
LED1
103/275V
AC-N
IC5
3
4
1
2
3
IC8
TLP371
IC7
+5V
102
C16
C20
2
1
2
3
9013
3
2
1
CN1-2
10K
Q2
ＰＧ驱动
R25
CN1-1
R26
2.2K
S14K350
ZE1
330
R30
680
R21
+5V
+12V
1uF/275VAC
T3.15A 250VAC
FUSE1
6
5
4
2
1
TLP521
TLP3526
CN14
AC-L
330K
C17
R27 104
2.2K
R28
R24
120/1W
C18
4
1K
R31 室外通讯输出
室外通讯输入
D3
D2
2
3
104
C14
1
R7 10K
E3
+12V
+5V
C5
103
TXI
1000uF/35V
3
2
1
CN8
IN4007
D5
D4
IN4007
D1
3
+5V
Vin
IC4
7805
Vout
C9
103
2.2K
R6
SW1
3
102
C6
C2
103
+5V
8M
4
E4
10K
VSS
X1
X0
/RST
P61
C15
104
102
C7
E8
C
R17
10K
C21
104
P33/EC
R19
10K
4.7U
16
A 15
遥控接收14 P34/T0/INT10
ＰＧ反馈 13 P35/INT11
过零检测12 P36/INT12
蜂鸣器11 P37/BZ/PPG
10
9
8
7
应急开关6
104
OSC1
C4
R5
P07/INT27
5
缩时／自检
P60
换新风4
P06/INT26
Q3
9013
1K
R18
10K
R20
+5V
P32/UI/SI
P31/UO/SO
P30/UCK/SCK
P50/PWM
P70
P71
P72
P40/AN0
P41/AN1
P42/AN2
P43/AN3
P00/-INT20/AN4
P01/-INT21/AN5
P02/-INT22/AN6
P03/-INT23/AN7
面板选择 3
VCC
2
室外通讯输入
P05/INT25
IC1
1
室外通讯输出
P04/INT24
470uF/16V +5V
R4
10K
+5V
R12
C1 102 CN10 10K
TEST
R32 1K
2.2K
R11
TXO
4
+5V
C22
5
Date:
File:
B
Size
Title
17 B 自动运行
18 C 机型选择
19 D 导板选择
20
21
22
23
24
25
26
27
28
29
30 风机输出
104
31 负离子
32
5
+5V
10K
R39 2.2K
R10 2.2K
D
C
B
A
IC3
1
2
3
SW3
1
2
3
SW2
5
4
3
2
1
CN6
1
2
3
4
C11 104
8
7
6
5
+5V
+12V
100
R36
1
2
3
4
CN4
102
C23
R38
6
+5V
1K
R2
+5
R1
220
+12V
TIMER
RUN
REC
GND
电源 Ｇ
电源 Ｒ
BUZ1
4.7U
1
2
3
4
5
6
7
CN2-1
Revision
E7
8-Dec-2004
Sheet of
C:\Documents and Settings\YINDEYANG\桌面
Drawn
\原理图
By:.DDB
2.2K
104
R9
R34
R37
R35
R15
10K
470
470
1K
16 FLZ
15 PGO
14
IC2
13
12
11
10
9
Number
C10
1
2
3
4
5
6
7
8
R13
3.3K
C12
C13
102 R14
20K 102
PIPE
ROOM
+5V
6
A
B
C
D
Model:
A
B
C
D
1
2
3
4
5
CN9
2
GND
1
3
1
34
2
Domestic Air Conditioner
HSU-22H03/R2(DB)
D
C
C
D
B
A
+12V
PMV
CN2
6
5
4
3
2
1
XC25-06WS
+5V
1
C17
30P
C18
30P
R13
15V
X1
C19
16.000MHz
10K
3
18
19
24
21
6
7
9
10
11
12
13
14
15
16
IC1
CD1
2
25V/220U
COM GND
IC2
ULN2003
XIN
XOUT
RESET
VDD
VAREF
AVDD
P20
P21
P22
P10
P11
P12
P13
P14
P15
P00/INT0
P01
P02
P03
P04
P05
P06
P07
COM
1
104
TEST
P30
P31
P32
P33
P34
P35
P36
P37
8
7
6
5
4
3
2
1
RP2
25
22
23
39
38
37
36
35
34
26
27
28
29
30
31
32
33
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+5V
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10K
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IC6
TLP371
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6
5
4
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1
2
HSU-22H03/R2(DB)
Model:
Domestic Air Conditioner
Domestic Air Conditioner
Model:
HSU-22H03/R2(DB)
ABNORMITY DIAGNOSIS
36
Domestic Air Conditioner
Model:
HSU-22H03/R2(DB)
HSU-18H03/R2(DB) Fault display code
Fault codes
Faulty Points
Power
Timing
Running
Indoor
Outdoor
Faulty indoor thermistor
Blinking
Off
Off
*
*
Sensor in short or broken current
Faulty indoor thermistor
Blinking
On
On
*
*
Sensor in short or broken current
Faulty EEPROM
Blinking
On
Blinking
*
Defrosting temperature sensor
in short or broken current
On
On
Blinking
Poor contact of components or poor
control board
Compressor discharge
temperature sensor in short or
broken current
Blinking
On
Off
Poor contact of components or poor
control board
Thermistor on wiring
wiringboard
boardin
in
short current
On
Blinking
On
Poor contact of components or poor
control board
Poor communication
Off
Off
Blinking
*
Resumable
Wrong data or no EEPROM
1, Strong interruption 2, Poor wiring or
control board
Off
Blinking
Off
1,Short or excessive gas 2, High
（above 242v）or low (below 187v)
voltage 3,Jammed capillary tube
(compressor running fast with low
current input) 4,Faulty thermistor or
control board 5, High ambient
temperature
High AC current
Blinking
Blinking
Off
1, Excessive gas 2, Low voltage 3,Poor
CT or control board 4, Faulty
compressor, high running current
High DC current
Blinking
Blinking
On
1, Jammed compressor 2, Damaged
power module 3, High voltage (above
242v) or low voltage (below 187v)
Broken CT wire
Blinking
Off
Blinking
Off
Blinking
On
1, Low voltage input 2, Damaged control
board
Blinking
1, Jammed compressor 2, Damaged
power module 3, Irregular heat emitting
gum 4, High voltage (above 242v) or low
voltage (below 187v)
Overheating discharge pipe
Low voltage
Overload or high restrictions
Blinking
Blinking
1, Damaged control board 2, Short gas
3, Poor 4-way valve switch
The indoor motor finds no motor signal in a 10-sencond period after increasing the voltage. Running for 30 senconds
Indoor motor warning (BP AC, after cutting off the output voltage for the indoor motor, AC gives no motor signal but warning under new voltage for the
DP OF K SERIES)
motor. Both he power light and running light blink twice at 1 Hz/s and then the power light, timing light and running light
blink once. The sames cycle goes on.
37
Domestic Air Conditioner
Model:
HSU-22H03/R2(DB)
TROUBLE SHOOTING
38
Domestic Air Conditioner
39
Model:
HSU-22H03/R2(DB)
Domestic Air Conditioner
Model:
HSU-22H03/R2(DB)
REFRIGERATING CYCLE DIAGRAM
40
Domestic Air Conditioner
Refrigerating cycle diagram
41
Model:
HSU-22H03/R2(DB)
Domestic Air Conditioner
Model:
HSU-22H03/R2(DB)
Noise level test chart and air velocity distribution
42
Domestic Air Conditioner
Model:
HSU-22H03/R2(DB)
Noise level test chart and air velocity distribution
60
50
50
40
40
30
30
20
20
10
10
0
dB(A)
60
dB(A)
Noise level test chart
0
63Hz
125Hz
250Hz
500Hz
1000Hz
2000Hz
4000Hz
8000Hz
indoor
outdoor
43
Domestic Air Conditioner
Model:
HSU-22H03/R2(DB)
Noise level test chart and air velocity distribution
Air velocity distribution
Air velocity distribution
unit m/s
m2
Fig 1
top view
flow control panel horizal
lourer:center
1
0
1.0
2.0
0.5
0.25
1
2
1
3
2
5
4
6
7
8
unit m/s
m3
2
Fig 2
top view
flow control panel horizal
lourer:right and left
m
10
9
1
0.5 0.25
1.0
2.0
0
1.0
1
0.5
2
3
0 1
2
0.25
3
4
5
6
7
8
9
10
m
unit m/s
Fig 3
top view
flow control panel horizal
lourer:center
3
1.8
2.0
0.5 0.25
1.0
1
0
1
3
2
4
5
7
3.0
9
10
m
Condition
Fan speed:high
Operation mode:fan
Voltage:230V,50Hz
2.0
1.8
1.0
0.5
0
8
unit m /s
m
Fig 4
top view
flow control panel vertical
lourer:center
6
1
2
3
4
0.25
44
5
6
m
Domestic Air Conditioner
Model:
Installation manual
45
HSU-22H03/R2(DB)
Domestic Air Conditioner
Model:
HSU-22H03/R2(DB)
Installation Manual of Room Air Conditioner
Read this manual before installation
Explain sufficiently the operating means to the user
according to this manual.
Necessary Tools for Installation
1.Driver
2.Hacksaw
3.Hole core drill
4.Spanner(17,19 and 26mm)
5.Torque wrench(17mm,22mm,26mm)
6.Pipe cutter
7.Flaring tool
8.Knife
9.Nipper
10.Gas leakage detector or
soap-and-water solution
11.Measuring tape
12.Reamer
Drawing for the installation of indoor and outdoor units
Accessory parts
1
2
Accessory parts
Remote controller
R-03 dry battery
The models adopt HFC free refrigerant R410A
Number
of
articles
1
Optional parts for piping
2
Mark
Mounting plate
1
4
Drain hose
5
6
4X50
Steel nail, cement
4X25
Screw
Plastic cap
Parts name
A
1
3
more than 5cm
No.
mo
re th
an
Non-adhesive tape
B
Adhesive tape
C
Saddle(L.S) with screws
D
E
Connecting electric cable
for indoor and outdoor
Drain hose
F
Heating insulating material
10c
m
mo
6
an
10c
m
Piping hole cover
G
4
re th
Attention must be paid to
the rising up of drain hose
7
Drain-elbow
1
8
Cover
1
9
Cushion
4
Arrangement of piping directions
1
Left
Rear left
10
Pipe supporting plate
Rear
right
Right
11
Connecting cable
Below
1
m
an
re th
10c
mo
mo
re
tha
n1
0c
m
more
more
The marks from
A
G
to
in the figure are the parts numbers.
The distance between the indoor unit and the floor should be
more than 2m.
No.
46
than
60cm
than
15c
m
Domestic Air Conditioner
Model:
HSU-22H03/R2(DB)
Floor fixing dimensions
of the outdoor unit
(Unit:mm)
HSU-22H03/R2(DB)
Fixing of outdoor unit
Fix the unit to concrete or block with bolts( 10mm) and nuts firmly and horizontally.
When fitting the unit to wall surface, roof or rooftop, fix a supporter surely with nails
or wires in consideration of earthquake and strong wind.
If vibration may affect the house, fix the unit by attaching a vibration-proof mat.
Indoor Unit
Selection of Installation Place
Place, robust not causing vibration, where the body can be supported
sufficiently.
Place, not affected by heat or steam generated in the vicinity, where
inlet and outlet of the unit are not disturbed.
Place, possible to drain easily, where piping can be connected with the
outdoor unit.
Place, where cold air can be spread in a room entirely.
Place, nearby a power receptacle, with enough space around. (Refer
to drawings).
Place where the distance of more than lm from televisions, radios,
wireless apparatuses and fluorescent lamps can be left.
In the case of fixing the remote controller on a wall, place where the
indoor unit can receive signals when the fluorescent lamps in the room
are lightened.
Outdoor Unit
Place, which is less affected by rain or direct sunlight and is
sufficiently ventilated.
Place, possible to bear the unit, where vibration and noise are
not increased.
Place, where discharged wind and noise do not cause a
nuisance to the neighbors.
Place, where a distance marked
is available as illustrated
in the above figure.
Power Source
Before inserting power plug into receptacle, check the voltage without fail. The power source is the same as the corresponding name plate.
Install an exclusive branch circuit of the power.
A receptacle shall be set up in a distance where the power cable can be reached. Do not extend the cable by cutting it.
Selection of pipe
To this unit, both liquid and gas pipes shall be insulated
as they become low temperature in operation.
Use optional parts for piping set or pipes covered with
equivalent insulation material.
The thickness of the pipe must be 0.8mm at least.
47
For 18
For 22
Liquid pipe
6.35mm(1/4")
6.35mm(1/4")
Gas pipe
12.7mm(1/2")
12.7mm(1/2")
Indoor unit
1.Fitting of the Mounting Plate and Positioning of the wall Hole
When the mounting plate is first fixed
1.Carry out, based on the neighboring pillars or lintels, a proper leveling for the plate to be
fixed against the wall, then temporarily fasten the plate with one steel nail.
2. Make sure once more the proper level of the plate, by hanging a thread with a weight from
the central top of the plate, then fasten securely the plate with the attachment steel nail.
3. Find the wall hole location A using a measuring tape
A=145mm
30mm
B= 60mm
When the mounting plate is fixed side bar and lintel
Fix to side bar and lintel a mounting bar, Which is separately sold, and then fasten
the plate to the fixed mounting bar.
Refer to the previous article, "
position of wall hole.
When the mounting plate is first fixed ", for the
2.Making a Hole on the Wall and Fitting the Piping Hole Cover
Make a hole of 60 mm in diameter,
slightly descending to outside the wall.
Install piping hole cover and seal it
off with putty after installation
Indoor side
Wall hole
60mm
(Section of wall hole)
48
Outdoor side
Thickness
of wall
Piping hole pipe
Indoor unit
3.Installation of the Indoor Unit
Drawing of pipe
Rear piping
Draw pipes and the drain hose, then fasten them with the adhesive tape
Left Left-rear piping
In case of left side piping, cut away, with a nipper, the lid for left piping.
In case of left-rear piping, bend the pipes according to the piping direction to the mark of hole for left-rear
piping which is marked on heat insulation materials.
1. Insert the drain hose into the dent of heat insulation materials of indoor unit.
2. Insert the indoor/outdoor electric cable from backside of indoor unit, and pull it out on the front side, then
connect them.
3. Coat the flaring seal face with refrigerant oil and connect pipes.
Cover the connection part with heat insulation materials closely, and make sure fixing with adhesive tape
Heat insulation
material
Piping
Pipe supporting plate
Lid for left piping Drain hose
Lid for right piping
Lid for under piping pipe
Indoor/outdoor
electric cable
Fix with adhesive tape
Indoor/outdoor electric cable and drain hose must be bound with refrigerant piping by protecting tape.
Other direction piping
Cut away, with a nipper, the lid for piping according to the piping direction and then bend the pipe according
to the position of wall hole. When bending, be careful not to crash pipes.
Connect beforehand the indoor/outdoor electric cable, and then pull out the connected to the heat insulation
of connecting part specially.
Fixing the indoor unit body
Hang surely the unit body onto the upper notches of the
mounting plate. Move the body from side to side to verify
its secure fixing.
In order to fix the body onto the mounting plate,hold up
the body aslant from the underside and then put it down
perpendicularly.
49
Indoor unit
4.Connecting the indoor/outdoor Electric Cable
Removing the wiring cover
Remove terminal cover at right bottom corner of indoor unit, then
take off wiring cover by removing its screws.
When connecting the cable after installing the indoor unit
1. Insert from outside the room cable into left side of the wall hole, in which
the pipe has already existed.
2. Pull out the cable on the front side, and connect the cable making a loop.
When connecting the cable before installing the indoor unit
Insert the cable from the back side of the unit, then pull it out on the front side.
Loosen the screws and insert the cable ends fully into terminal block, then tighten the screws.
Pull the cable slightly to make sure the cables have been properly inserted and tightened.
After the cable connection, never fail to fasten the connected cable with the wiring cover.
Note: When connecting the cable, confirm the terminal number of indoor and outdoor units carefully. If wiring
is not correct, proper operation can not be carried out and will cause defect.
1. If the supply cord is damaged, it must be replaced by the manufacturer or its service agent or a similar
qualified person. The type of connecting wire is H05RN-F or H07RN-F.
2. If the fuse on PC board is broken please change it with the type of T. 3.15A/250V.
3. The wiring method should be in line with the local wiring standard.
4. After installation, the power plug should be easily reached.
YEL/GRN
WHT
RED
BLK
BLK
RED
WHT
YEL/GRN
Indoor unit
HSU-22H03/R2(DB)
50
Outdoor unit
Outdoor unit
1.Installation of Outdoor Unit
Install according to Drawing for the installation of indoor and outdoor units
2.Connection of pipes
To bend a pipe, give the roundness as large as possible not to crush the pipe ,and the bending radius
should be 30 to 40 mm or longer.
Connecting the pipe of gas side first makes working easier.
The connection pipe is specialized for R410A.
The max vertical distance between the indoor unit and the outdoor unit is 5 m.
Half union
Flare nut
Forced fastening without careful
centering may damage the
threads and cause a leakage of
gas.
Pipe Diameter
Spanner
Torque wrench
Fastening torque
Liquid side 6.35mm(1/4")
18N.m
Gas side 9.52mm(3/8")
42N.m
Gas side 12.7mm(1/2")
55N.m
Be careful that matters, such as wastes of sands, etc. shall not enter the pipe.
The standard pipe length is 5m. If it is over 5m, the function of the unit will be affected. If the pipe has
to be lengthened, the refrigerant should be charged, according to 20 g/m. But the charge of refrigerant
must be conducted by professional air conditioner engineer. Before adding additional refrigerant,
perform air purging from the refrigerant pipes and indoor unit using a vacuum pump,then charge
additional refrigerant.
3.Connection
Use the same method on indoor unit. Loosen
the screws on terminal block and insert the
plugs fully into terminal block, then tighten the
screws.
Insert the cable according to terminal number
in the same manner as the indoor unit.
If wiring is not correct, proper operation can
not be carried out and controller may be
damaged.
Fix the cable with a clamp.
4.Attaching Drain-Elbow
If the drain-elbow is used, please attach it as
figure.
Drain hose
Note: Only for heat pump unit.
Drain elbow
51
Outdoor unit
5.Purging Method:To use vacuum pump
Liquid Side
2-way valve
6.35mm(1/4")
2-way valve
Gas Side
12.7mm(3/8")
3-way valve
Detach the service port's cap of 3-way valve, the
valve rod's cap for 2-way valve and 3-way's, connect
Gaugemanifold(for R410A)
the service port into the projection of charge hose
Anti countercurrent joint
(low) for gaugemanifold. Then connect the projection
of charge hose (center) for gaugemanifold into
vacuum pump.
Tube(for R410A)
Vacuum pump(for R410A)
Open the handle at low in gaugemanifold, operate
Open
vacuum pump. If the scale-moves of gause (low)
reach vacuum condition in a moment, check
again.
Vacuumize for over 15min. And check the level gauge
which should read -0.1 MPa (-76 cm Hg) at low
pressure side. After the completion of vacuumizing,
close the handle 'Lo' in gaugemanifold and stop the
Close
operation of the vacuum pump.
Check the condition of the scale and hold it for 1-2min.
If the scale-moves back in spite of tightening, make
flaring work again, the return to the beginning of
.
Liquid Side
Open the valve rod for the 2-way valve to an angle of
anticlockwise 90 degrees.
6.35mm(1/4")
2-way valve
2-way valve
After 6 seconds, close the 2-way valve and make
Gas Side
the inspection of gas leakage.
12.7mm(3/8")
3-way valve
Open
90o
In case of gas leakage, tighten
No gas leakage?
Service port
90ofor 6 sec.
If it does not stop gas leakage, discharge
whole refrigerants from the service port.
After flaring work again and vacuumize,
fill up prescribed refrigerant from the gas
cylinder
parts of pipe connection. If
leakage stops, then proceed
steps.
Detach the charge hose from the service port, open
2-way valve and 3-way. Turn the valve rod anticlockwise
until hitting lightly.
Liquid Side
6.35mm(1/4")
2-way valve
To prevent the gas leakage, turn the service port's
Gas Side
12.7mm(3/8")
3-way valve
cap, the valve rod's cap for 2-way valve and 3-way's
a little more than the point where the torque increases
HSU-22H03/R2(DB)
suddenly.
After attaching the each caps, check the gas leakage
around the caps.
CAUTION:
1.If the refrigerant of the air conditioner leaks, it is necessary to
2.Please do not let other cooling medium, except specified one (R410A),
discharge all the refrigerant. Vacuumize first, then charge the liquid
or air enter into the cooling circulation system. Otherwise, there will be
refrigerant into air conditioner according to the amount marked on
abnormal high pressure in the system to make it crack and lead to
the name plate.
personal injuries.
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1.Power Source Installation
The power source must be exclusively used for air conditioner. (Over I0A)
In the case of installing an air conditioner in a moist place, please install an
earth leakage breaker.
For installation in other places, use a circuit breaker as far as possible.
2.Cutting and Flaring Work of Piping
Pipe cutting is carried out with a pipe cutter and burs must be removed.
After inserting the flare nut, flaring work is carried out.
A
Flare tool for R410A
Flare tooling die
1.Cut pipe
Clutch-type
2.Remove burs
Conventional flare tool
clutch-type(Rigid-type) Wing-nut type (Imperial-type)
0~0.5mm
1.0~1.5mm
1.5~2.0mm
3.Insert the flare nut
Incorrect
Correct
4.Flare pipe
Lean Damage of flare Crack
Partial
Too outside
3.On Drainage
Please install the drain hose so as to be downward slope without fail.
Please don't do the drainage as shown below.
Less than 5cm
It becomes high
midway.
The end is immersed
in water.
It waves.
The gap with the ground
is too small
There is the bad smell
from a ditch
Please pour water in the drain pan of the indoor unit, and confirm that drainage is
carried out surely to outdoor.
In case that the attached drain hose is in a room, please apply heat insulation
to it without fail.
Check for Installation and Test Run
Please kindly explain to our customers how to operate through the instruction manual.
Check Items for Test Run
Gas leak from pipe connecting?
Heat insulation of pipe connecting?
Are the connecting wirings of
indoor and outdoor firmly inserted
to the terminal block?
Is the connecting wiring of indoor
and outdoor firmly fixed?
Put check mark
in boxes
Is drainage securely carried out?
Is the earth line securely
connected?
Is the indoor unit securely fixed?
Is power source voltage abided
by the code?
Is there any noise?
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Is the lamp normally lighting?
Are cooling and heating (when
in heat pump) performed normally?
Is the operation of room temperature
regulator normal?
Sincere Forever
Haier Group
Haier Industrial Park, No.1, Haier Road
266101, Qingdao, China
http://www.haier.com