Download Beko ROOM AIR CONDITIONER Service manual

SERVICE MANUAL
-Controller and Accessory
Infrared controller:
YR-H71..........Page 1
YR-H65..........Page 12
YR-H50..........Page 13
YR-H49..........Page 13
Address set controller:
ASC-002........Page 14
Wired controller:
YR-E06..........Page 15
YR-E12..........Page 24
Central controller:
YCZ-A001......Page 29
ICR01.............Page 35
Weekly timer:
YCS-A001......Page 40
Detector:
YCJ-001.........Page 46
IGU04.............Page 57
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Caution: YR-H71 has code A and code B, for code B, controller hasn't swing etc. functions ,and after changing
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The first site of dip switch in YR-E06 is used to distinguish diferent types, ON:H MRV or
Fixed frequence types, OFF:Single split inverter. Their diagnostic codes are different.
Error Discription
Normal state
Indoor ambient temp. sensor error
Indoor pipe temp. sensor error
Indoor pipe is over-heat in heating mode
Indoor pipe is in anti-freezing function in cooling
Communication error between indoor and outdoor units
Communication error between indoor and wired controller
Outdoor power model error
Outdoor current is too low
Compressor is over-heat
CT current is over high/one phase of power line is lost
Outdoor ambient temp. sensor error
Outdoor pipe temp. sensor 1 error
The voltage is over-high or over-low
Outdoor high or low pressure error
Outdoor pipe temp. sensor 2 error
The indoor pipe sensor temp. is too high
Outdoor pipe temp. sensor 3 error
Outdoor suction temp. sensor error
Compressor temp. sensor error
Indoor mid-evaporator temp. sensor error
Indoor PCB error
Water outlet system problem
Power lines is in wrong connection turn or one phase is lost
Humidity sensor error
z 23z
SW1-1
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ON
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E2
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F5
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F6
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E12
E14
E13
F7
F3
F8
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E10
E11
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F5
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F7
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E2
E4
E5
E6
E7
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E13
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4. Diagnostic code display
Failure description
Code on wired controller
Room temp. sensor abnormal
01
Indoor coil temp. sensor abnormal
02
Outdoor temp. sensor abnormal
4A
Outdoor coil temp. sensor abnormal
49
Over-current malfunction
48
High / Low pressure abnormal
53
Communication malfunction between indoor and wired controller
07
Communication malfunction between indoor and outdoor abnormal 06
Drainage system malfunction
08
N/A
0B
Coil gas pipe temp. Sensor abnormal
03
Temperature protection malfunction
0D
Indoor EEPROM abnormal
05
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Failure diagnosis
Upon abnormal operation:
Please read the User s Manual attached with the indoor unit before asking for
repairing. You may contact the after-sales technicians after careful checkup.
appears along with the error code.
When faults arise, the symbol
The central controller faults corresponding to error codes are given in the
following list (including air conditioner faults and group control network faults):
Code
Blank
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
Meaning
None (normal operation)
Fault with indoor ambient temperature sensor
Fault with indoor tube temperature sensor
Indoor heating overload protection
Indoor cooling icing (overload) protection
Indoor & outdoor communication error
Communication fault between panel (wire controller) and indoor unit
(air conditioner indication, central controller shows 30)
Module fault (PFC protection DC)
No load
Compressor overheating
Abnormal CT current
Fault with outdoor ambient temperature sensor
Fault with outdoor heat exchanger (tube temperature) sensor
Protection of supply overvoltage or undervoltage
High voltage protection
--- Fault with outdoor evaporator sensor
--- Cooling overload
EEPROM fault
Fault with outdoor return gas sensor
Fault with compressor sensor
--- Fault with indoor evaporator sensor
Drain system failure
Power supply 3-phase fault (phase lack or mistake)
Humidity sensor malfunction
Indoor fan failure (fan overcurernt, fan IPM protection, fan Holtz
element fault)
25
Outdoor fan failure (fan overcurernt, fan IPM protection, fan Holtz
element fault)
26
27
28
29
30
31
Low voltage protection
--- Electronic expansion valve failure
--- Dust remover screen needs cleaning
Insufficient refrigerant
Abnormal communication between monitor and air conditioner
Abnormal communication between monitor and bus
z 34 z
Commercial Air Conditioner
1.9 Central Controller ICR01 0010451974A
1.9.1 Appearance
Total on/Total off
MONITOR
GROUP
SET
TOTAL
1
2
3
4
UNIT
5
6
7
8
9
RUN
CENTRAL
SLAVE
STOP
LOCK
TIMER
10 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 38 39 40 41 42 43 44 45 46 47 48
49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64
MONITOR
TOTAL
SET
GROUP
MODE
FAN
FAN
SPEED
COOL
AUTO
DRY
HIGH
HEAT
MID
AUTO
LOW
MODE
TIMER
STANDBY
FILTER
SET FAILURE CHECK
1
2
RECOVERY SWING
AUTO NORMAL HRV
RECOVERY
CHECK
TEMP.
SELECT
FAN
SPEED
CENTRAL
LOCK
FILTER
CONFIRM
GROUP SET
Figure1
Function description:
ICR01 central controller is developed from YCZ-A001, the operation and dimension is same with
YCZ-A001, please refer YCZ-A001 part, ICR01 is used for X Multi, MRVII(R22, R410A) series, YCZA001 is used for Unitary Free, Unitary smart and Free Multi seires. But the wiring installation is
completely different.
Important! Timer and Recovery buttons are not in use.
1.9.2 LCD icons introduction
LCD of central controller displays indoor state and setting mode of different units.
central controller state indication
MONITOR
GROUP
SET
TOTAL
1
2
3
4
5
indoor group and
indoor state
unit number indication
indication
UNIT
6
7
8
9
RUN
CENTRAL
SLAVE
STOP
LOCK
TIMER
10 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 38 39 40 41 42 43 44 45 46 47 48
49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64
STANDBY
FILTER
MODE
FAN
FAN
SPEED
COOL
AUTO
1
DRY
HIGH
2
HEAT
MID
AUTO
LOW
SET FAILURE CHECK
RECOVERY SWING
AUTO NORMAL HRV
temp. setting and
failure indication
indoor unit number indication
Figure 2: LCD diagram of central controller
z 35 z
Commercial Air Conditioner
1.9.3. Installation drawing
(1PH, 220V AC power source)
N
L
0010451974A
ICR01
Central controller
Figure 3. back of central controller
1.9.4. Exterior dimensions for central controller
65
92
180
49
136
R
MONITOR
GROUP
SET
TOTAL
1
2
3
4
5
UNIT
6
7
8
9
RUN
CENTRAL
SLAVE
STANDBY
STOP
LOCK
TIMER
FILTER
10 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 38 39 40 41 42 43 44 45 46 47 48
70 121
49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64
MODE
FAN
FAN
SPEED
COOL
AUTO
DRY
HIGH
HEAT
MID
AUTO
LOW
SET FAILURE CHECK
1
2
RECOVERY SWING
AUTO NORMAL HRV
86
Figure 4: Exterior dimension
70
(mm)
1.9.5. Communication wire specs
The wire between connecting board to the central controller is the dual-core STP (shielded twisted pair).
The detailed specs are as below:
wire length(m)
Specs
<100
0.3mm2 * 2-core STP
<200
200 and <300
300 and <400
400 and <600
100 and
0.5mm2 * 2-core STP
0.75mm2 * 2-core STP
1.25mm2 * 2-core STP
2mm2 * 2-core STP
Shielded layer of communication wire must be earthed on one end.
1.9.6. Dip switch setting of central controller: shown in the below figure (ON:0, OFF: 1)
ON
1
2
3
4
Dip switch setting meaning:
The first bit: central bux line selection, 0: indoor bus line(Install without IGU04); 1: central bus line
The second bit: master/slave central controller selection, 0: master central controller; 1: slave central
controller
The third, fourth bit: control range, 00: 1~64, 01: 65~128, 10: 129~192, 11: 193~256. Every central
controller only can control 64 units, and every unit can include max. 16 indoors, but the central controller
only displays the master indoor state.
z 36 z
Commercial Air Conditioner
position
0: ON
1: OFF
1
2
3
4
indoor bus line master controller 00: 1~64 01: 65~128
central bus line slave controller 10: 129~192 11: 193~256
For example:
Select central bus line, master central controller, control range is 00, so the dip switch is 1 0 0 0 (default)
Select indoor bus line, master central controller, control range is 00, so the dip switch is 0 0 0 0.
1.9.7. Can set the central control unit as a group, and the max. 64 units of indoor can be set a group.
After setting unit, the indoor in one group can be controlled the same operation (when out of factory, one
unit is regarded as one group).
connecting board
IGU04
Indoor 1
central controller
Indoor 1
Indoor 3
Indoor 2
Indoor 2
YR-E12
YR-E12
YR-E12
Unit 1
Indoor 3
Unit 2
Unit 3
Figure 5 Central unit and group diagram
1.9.8. Control function
1. Features and functions of central controller
Central controller control(ICR01) diagram is as below:
connecting board 1
IGU04
P,Q
outdoor
unit 1
central controller
ICR01
B-A
B-B
connecting board ...
IGU04
P,Q
unit 3
wired controller
YR-E12
wired controller
YR-E12
Infrared controller
YR-H71
unit 2
outdoor
connecting board5
IGU04
P,Q
outdoor
max. 16 indoors
wired controller
YR-H71
unit 64 (max. 64 units)
Figure 6 MRV II central control system diagram
1.9.9.Summarization
For installation, connect communication wires from central controller ICR01 port B-A,B-A, to connecting board IGU04. and then connect
communication wires from IGU04 P,Q to outdoor or indoor unit communication port P,Q. Notice, the default position of ICR01 dip switch
is 1 0 0 0, the address of IGU04 and the indoor address must be set in different number.
When one central controller control one air condition system, also can directly connect wires from ICR01 B-A,B-B port to P, Q port of
outdoor or indoor communication port.
z 37 z
Chff^j\bZe Abj Chg]blbhg^j
Press [check] button, ICR01 will show the diagnostic code, when unit * is in error, and choose the number in
ICR01, you will see the diagnostic code, and if not select the error units, the error units number will be
flashing.
Diagnostic code for outdoor master unit
20
Outdoor defrost temp. sensor TE error
The temp. tested from sensor is keeping lower than
21
Outdoor ambient temp. Sensor TA error
-60.87
22
Outdoor suction temp. sensor TS error
system will automatically change to backup running mode.
24
Outdoor oil temp. sensor Toil error
23
Outdoor discharge temp. Sensor TD
or higher than 135.4
The temp. tested from sensor is keeping lower than
-4.45
error
for 60 seconds, and
or higher than 337.14
for 60 seconds, and
system will automatically change to backup running mode.
25
Master compressor current is over high
Signal comes from MCU 840
26
Communication error between indoor
Outdoor didn ¯t fi nd anyi ndoor uni
and outdoor unit
27
Compressor oil temp. is over-high
Oil temp. is keep higher than 90
for 5 minutes, when the
temp. is lower than 75 , the alarm will be disappeared
automatically.
28
Master unit high pressure sensor error
The signal voltage is higher than 4.9V, or lower than 0.1V
29
Master unit low pressure sensor error
for 30 seconds
30
High
pressure
switch
alarms
for
over-high pressure
31
Low
pressure
The switch keep open for 1 minute, alarm, if switch keep
short-connecting for over 1 minute, the alarm will be gone
switch
alarms
for
automatically
over-high pressure or over-low pressure
32
Inverter IPM problem
Signal comes from MCU 840
33
Master unit PCB MB89F538 EEPROM
EEPROM data is lost or is installed in wrong way.
error
34
35
Outdoor compressor discharge temp.
Discharge temp. sensor TD1 temperature is higher than
sensor alarms
125
The
protection
part
in
inverter
for 10 seconds when lower than 100 , resume
Check the part in compressor.
compressor is acted
37
Master unit high/low pressure sensor is
installed in wrong turn
39
Master unit low pressure sensor alarms
In the first 3 minutes of compressor running, Pd/Ps<1 for
over 60 seconds
Cooling: Ps< 0.2kgG/cm2 for 30 seconds, alarm
Heating: Ps <-0.2kgG/cm2 for over 10 minutes, alarm.
40
High pressure sensor alarms
Pd>28.5kgG/cm2 for over 30 seconds
41
Suction temp. sensor TS alarm
TS>40
42
Current over-high
Signal is higher than setting Max. current for 5 seconds
z 38 z
for over 10 minutes
Chff^j\bZe Abj Chg]blbhg^j
43
Master discharge temp. sensor alarm in
low frequence
44
Communication error between master
When inverter compressor frequence is lower than 30Hz,
TD1 is higher than 110
No signal for over 4 minutes
unit MB89F538 and MCU 807(indoor)
45
Communication error between master
No signal from indoor unit or central controller for over 4
unit MB89F538 and MCU 807 (indoor)
seconds
MB89F538 and 807 central controller
46
Communication error between master
No signal for over 2 minutes
unit connecting board and inverter PCB
49
Master inverter drive PCB EEPROM
EEPROM data is lost or installed in wrong way.
error
50
The total capacity of indoor units is too
Total capacity of indoor units>outdoor capacity x 135%
high
51
Outdoor communication signal is lost
52
Indoor units is over than 64 sets
53
Central control address repeat
Check the address of all indoor units
54
Master unit oil temp. is over-low
In running, the temp. of compressor oil is lower than
(ps+10
for 5 minutes
69
Slave unit is lost
Communication of slave unit error or switched off
70
Shortage of refrigeration
Only show diagnostic code, doesn t stop units
z 39 z
Chff^j\bZe Abj Chg]blbhg^j
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1.11 Detector YCJ-A001
Safety Precautions
Below are four kinds of safety precautions and suggestions:
WARNING: Improper use may result in severe consequences of death or serious injures.
CAUTION: Improper use may result in injures or machine damages; in some cases may
cause serious consequences
: It must be strictly prohibited where marked with “Prohibited”, otherwise may
result in machine damages or endanger the user’ personal safety.
: It must be strictly followed where marked with “To be followed”, otherwise
may result in machine damages or endanger the user’ personal safety.
Instructions: This information can ensure correct operation of the machine.
Be sure to follow the following important safety precautions.
These precautions should be at hand to be checked at any time when needed.
If air conditioner is transferred to a new user, this manual should be as well transferred
to the new user.
WARNING
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Entrusting Installation
Installation should be entrusted to after
service staff; self-installation may result
in electric shock, fire and the similar
because of improper installation.
If any abnormal phenomena are found
(e.g. smell of burning), please stop
running and cut off power supply, and
contact after service staff to find out
treatment method.
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When intend to move and reset controller,
ask after service staff for responsibility.
Improper installation may result in electric
shock and fire.
Absolutely
not
to
alter
without
authorization.
Improper alteration may result in accident of
electric shock, fire and the similar.
When repair needed, ask after service staff
to handle it.
Improper maintenance and repair may result
in electric shock and fire.
If keep using under this
situation, may result in
accident of electric and
fire.
CAUTIONS
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Not be allowed to spray flammable spraying agent directly to controller.
Otherwise may result in fire.
Not be allowed to operate switch with damp hands, and not to spray
controller with water.
Otherwise may result in electric shock.
Not be allowed to press switch with matter having sharp tip.
Otherwise may result in malfunction or electric shock.
Maintenance
When maintenance or abnormity appeared, be sure to cut off manual operation power.
It will cause color change or paint-fading if wipe appearance of operation
portion with gasoline, thinner or chemical wiping cloth; be careful.
If operation portion is heavily soiled, shall immerse cloth in diluted neutral
detergent, and wipe that portion after wring the cloth, and wipe cleanly with
dry cloth.
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Abstract of Function
Remote control detector (heveunder as: detector) is the necessary part and user’s optional part of Haier
commercial air conditioner remote monitor and control system. Net air conditioner (heveunder as: air
conditioner or remote) means a air conditioner with remote control interface on indoor computer board,
onlu which could combine with parts such as detector and central controller to form remote or detector
interface monitor and control system.
Detector is a key part of Haier commercial air conditioner remote monitor and control system, used for
transferring standard digital interface to realize communication between bus code and sub-address. It is
connected directly to air conditioner to realize local operation and collection of control information and
working information of air conditioner. Together with air conditioner central controller (hereunder as:
central controller) and air conditioner, form the Haier commercial air conditioner remote monitor and
control system — group control function network to realize data exchange and monitoring. Abstract
description as follows:
A.
Communication Function
1.
Communication with air conditioner
Perform wire communication with at most two air conditioners through 4-poles screw-fixing terminal,
and can realize two-unit switchover function when connected to two air conditioners, which control
operation status of air conditioner by different ways according to inner control or inquiry demand of
detector, and check working information and malfunction information of air conditioner at the same
time.
2.
Communication with central controller (another optional accessory, a control component of Haier
commercial air conditioner remote monitor and control system)
Realize communication with central controller through RS-485 interface bus. According to the
components number set by internal dialing switch, receive commands from central controller, form
internal control or enquiry request of detector and answer reception status and working information
and malfunction information of air conditioner.
B.
Power Failure Resume
To reduce the impaction to power network when air conditioners simultaneously start, detector have
power blackout compensation function to replace the power blackout compensation function of local
air conditioner when use group control net; When power restored after blackout, air conditioner can
automatically restart with different delay according to basic running status before power blackout.
C.
Two-unit Switchover Function
To increase operation reliability of air conditioner, detector is equipped with two-unit switchover
function, and the internal dialing switch of detector set single-unit operation mode or two-unit
switchover mode. When select single unit mode, detector controls unit A according to commands
from previous unit. When select two-unit mode, unit A and unit B have absolutely equal position in
realizing two-unit switchover function.
z 47 z
Chff^j\bZe Abj Chg]blbhg^j
Abstract of Function
Realization of two-unit switchover function: in normal operation status, one air conditioner is started
to operate under the control of detector and another one stops to wait, when it’s time for switchover
the detector wakens the waiting air conditioner and recalculates time, and the previous running one
will continue to operate and automatically stops to wait half hour later. If any of air conditioner fails
to function, switchover timing is temporally stopped, the detector is automatically controlled to waken
another air conditioner and after that stop the malfunction one to wait status. The detector will
forward transfer the malfunction information when inquiring and automatically restore two-unit
switchover function after malfunction is removed. If air conditioner cannot reach the setting
temperature after a period of running, that is over-load, switchover timing will be temporally stopped,
the detector is automatically controlled to waken another air conditioner and two units operate
together until the setting temperature is obtained, now automatically stop the latter started conditioner
and restore two-unit switchover function automatically.
D.
Unit Number Setting Function
There is a 8-bit dialing switch inside the detector, the highest order is D8 used for setting single unit
operation mode or two-unit switchover operation mode; lower seven bits (D7, D6, D5, D4, D3, D2
and D1) are used for setting unit number (group control network) or two-unit switchover time
(two-unit switchover).
E.
Working Status Display Function
Detector indicators are divided into power indicator (red LED) and operation indicator (green LED):
the operation indicator has the function of displaying operation status, and the power indicator lights if
power is normal after power on; lit operation indicator means that detector works normally, and
flashed operation indicator shows operation status of detector and distinguishes the meaning of
different status by flashing times.
F.
Time Delay Control Function
When forming central control network through RS-485 bus, detector sets start delay function to
reduce impaction to power network because of simultaneous control and operation of air conditioners,
and delay time is created by detector randomly and automatically.
G.
Detector can only be used for some of Haier Commercail indoor type , for example: Free Multi Wall
mounted type, Console type etc. Detector is necessary for Weekly timer or central controller
installation for this types. But Duct type, Cassette type, Convertible type couldn’t use detector., they
can directly be connected with weekly timer or central controller.
z 48 z
Chff^j\bZe Abj Chg]blbhg^j
Introduction of System
1.
Only use two-unit switchover function
Detector is connected to two air conditioners with same type through a 4-poles screw-fixing terminal
at the interface of air conditioner, and correspondingly set dialing switch of the detector as two-unit
switchover operation mode. When only use two-unit switchover function, system do not need to
connect other parts. Two-unit switchover time can be set within the range of 1-127 hours by the low 7
bits of dialing switch, see dialing switch setting table for detail settings and corresponding times.
2.
Use central controller to realize group control function
Please reference “Central controller YCZ-A001 manual” and “Weekly timer YCS-A001 manual”.
Use central controller to realize two-unit switchover group control function
Please reference “Central controller YCZ-A001 manual” and “Weekly timer YCS-A001 manual”.
3.
z 49 z
Chff^j\bZe Abj Chg]blbhg^j
Maintenance
Status Inspection
z
Control unit A when select single unit, and when unit A fails to function, detector will forward transfer
malfunction information during inquiry. Control unit A and B when select two units, as long as one air
conditioner fails to function, detector will forward transfer malfunction information during inquiry.
z
Display of detector running status and operation indicator: 0.5 second ON and 0.5 second OFF of
operation indicator is a cycle, and indicate information using times of the cycle, which form status
indication, and an interval of 2 seconds between status indication and status indication. Detector puts
all detected status together to form a status indication cycle, and an interval of 4 seconds between
status indication and status indication. For example: under two-unit status, there is an air conditioner
interface communication error, then indication 2 + 2 seconds waiting + indication 3 + 4 seconds
waiting and recycles like this.
Serial
No.
Flashing
times
1
1
Communication error with previous unit interface RS-485
2
2
Communication error with previous unit interface RS-232C
3
3
Communication error with interface of air conditioner A
4
4
Communication error with interface of air conditioner B (do not check this
interface under single unit status
5
5
Data error of detector’s EEPROM
6
6
Data collection of air conditioner cannot inquiry and confirms error.
7
7
Control commands from previous unit cannot be performed.
Meaning
Be sure to cut off manually controlled power supply switch when maintenance.
z
Wipe with a soft dry cloth. If too dirty, immerse cloth in diluted neutral detergent and wipe after wring
the cloth, and clean with dry cloth.
z
Forbid to wipe with gasoline, thinner, household cleanser or chemical wiping cloth, otherwise may
result in color change, paint-fading, deformation or break.
z 50 z
Chff^j\bZe Abj Chg]blbhg^j
Appearance, Dimension and Interface
1-----------2-----------3-----------4-----------5-----------6-----------7-----------8------------
Reset Port
Signal Ground Wire of Unit B
Signal Line of Unit B
Signal Ground Wire of Unit A
Signal Line of Unit A
Central Control Interface — B
Central Control Interface — A
Communication Line for RS-232 Linking Control Computer or Communication Line
of MODEM (We only offer agreement of deteetor for programming control software )
9------------ Power Cord. If damaged, to avoid dangers, the power cord must be replaced by
manufacturer or its maintenance department or similar professional staff.
Performance Parameters and Accessories
Power Supply
1PH, 220~230VAC, 50Hz
Consumed Power
3W
The Maximum Dimension
139 × 142 × 55 mm
Weight
0.53 kg
Accessories
2 pieces of communication line to air conditioner
(UL2547, AWG24 2C) (Core: red/white)
z 51 z
Chff^j\bZe Abj Chg]blbhg^j
Installation and Debugging
Installation Methods
Fix detector by means of two screws hanging methods, and distance
between screws see (right figure).
1. Realization, installation, wiring and power distribution of a system only
using two-unit switchover function are much more easier, after finishing
installation of two units, connect detector to the remote control interface
of the air conditioner computer board, set detector as two-unit switchover
working mode and set two-unit switchover time as required.
2. It must form a complete set of documents (project layout for group control network, installation and
construction records for group control network, debugging records for group control net, maintenance
and repair records for group control network) for group control network of Haier commercial air
conditioner long distance system (hereinafter for short as: group control network) from layout design,
installation, debugging to after service, and file all for future reference.
3. Layout design of group control net woek shall be finished in advance, including: (1) compositions of
group control network system and quantities controlled; (2) selection type of air conditioner,
installation place, power distribution and wiring manner and connection to detector; (3) installation
place of detector, allocation of unit address code, power distribution and wiring manner and
connection to group control bus; (4) installation and wiring of group control bus, length limitation of
bus, resistance matching of two ends of bus, and single point earth of bus shielding layer; (5)
installation place of central controller, allocation of unit address code, power distribution and wiring
manner.
4. Principles of layout design of group control net: (1) detector is essential part, to keep proper
responding speed and communication reliability, detector quantities carried by one central controller
shall not more than 64; (2) air conditioner must be a net air conditioner, installation must strictly
follow the installation and operation instructions shipped with the unit, and confirm that power
blackout compensation function of local air conditioner has been cancelled when debugging; (3)
suggest that do not use two-unit switchover function of detector in the case of high load, i.e. suggest
that do not use one detector to load two air conditioners when detector forming group control net,
otherwise temperature difference control may be affected. If it is necessary to install two-unit
switchover function for group control net, air conditioners with same type and half installation
distance of that of normal installation are required; (4) installation place of detector shall not too far
away from air conditioner, not exceed the wiring length; (5) unit address code of detector shall be
strictly allocated in a sequence from small one to big one, and set continuous unit number; (6) for
power distribution of detector, the power distribution line and communication line shall not be too
close from each other or in the same wiring channel, and no other special requirements; (7) for
connection between detector and group control bus, not allowed to connect branch line from the
group control bus; (8) shielding line of communication line between detector and air conditioner and
the shielding line of communication bus between detector and central controller shall be shorted; (9)
wiring and power distribution line of the group control bus shall not be too close from each other or
in the same wiring channel, and others may refer to wiring requirements of building autocontrol
system; (10) limit the total length of group control bus to 1000 meters; (11) at both ends between
Bus A and Bus B connect a metallic membrane precision resistance of 100 or 120 ohm respectively; if
needed (12) single point earth for bus shielding line, suggest to be arranged in the middle of
communication bus, close to central controller;
z 52 z
Chff^j\bZe Abj Chg]blbhg^j
Installation and Debugging
(13) in principle, installation place of central controller shall be arranged in the middle of
communication bus, close to shielding earth line of communication bus; (14) unit address codes of
central controller adopt the default settings; (15) central controller has its own power distribution line,
the power distribution line and communication line shall not be too close from each other or in the
same wiring channel, and no other special requirements.
5. Installation and construction of wiring of group control network shall be processed together with
installation and debugging of net air conditioner, pay attention to commissioning before installation.
6. Connection between detector and air conditioner: detector working mode and unit address code shall
be strictly set according to planned layout; detector makes wire communication with at most two air
conditioners (A, B) through 4-poles screw-fixing terminal at air conditioner interface (A+, A-, B+, B-);
connection between detector and air conditioner use uniform wiring; use uniform wiring for
connection between detector and air conditioner, one plug in type terminal of wiring connected to
Remote control interface on the computer board of air conditioner, and cores of another terminal
respectively connected to A+ and A- (B+ and B-); connection has polarity, and generally white wire
connected to A+/B+ and black/red wire connected to A-/B-; if detector cannot work normally when
debugging, then can check and remove malfunction by changing positive and negative polarity.
During debugging also can judge whether communication interface to air conditioner is normal
according to the running status indicated by operation indicator (green LED).
7. Connect detector and communication bus after finish the wiring of communication bus: connect
several detectors to communication bus in parallel, all terminal port A (including central controller)
on one bus, and all terminal port B (including central controller) on another bus, at both ends of the
communication bus - A terminal port line and B terminal port line shall paralleling connect a metal
membrane precision resistance of 100 or 120 ohm respectively if needed. Earth one point of the
shielding line of communication bus, which is at the middle position of the communication bus, and
the total length of communication bus shall be limited within 1000m.
8. Connect central controller and communication bus after finish installation and connection of detector:
central controller is connected to communication bus through the 2-post screw-fixing terminal (A and
B) of interface RS-485, locating in the middle of the communication bus, with position close to the
earth point of the shielding line of communication bus.
9. Power on and debugging: after power on, central controller periodically monitors the detector and air
conditioner groups on the communication bus, and after inquiring for a period of time the unit
number shall display as expected, check and debug if having any difference.
10. Set the dialing switch of detector: (1) there is a 8-bit (1̚8) dialing switch inside the detector, OFF
means 0 and ON means 1; (2) the eighth bit used for setting single unit working mode or two-unit
switchover working mode, OFF means single unit and ON means two-unit; (3) the lower seven bits
(from the seventh to the first bit) have up to 128 selections when forming group control net, which are
used for setting unit address code, see the table below for detail setting check list; (4) the lower seven
bits have up to 128 selections when forming group control net and using two-unit switchover function,
which are used for setting unit address code, see the table below for detail setting check list, and the
default two-unit switchover time is 24hrs; (5) the lower seven bits have up to 128 selections when not
forming group control net, which are used for setting two-unit switchover time, see the table below
for detail setting check list.
z 53 z
Chff^j\bZe Abj Chg]blbhg^j
Installation and Debugging
Two
Unit
Dialing setting
˄1 means dialing to ONˈ0 means dialing to OFF˅
Air
conditioner
installation
sequence
Unit
number
of central
controller
Two-unit
switchover
time
NO.8
NO.7
NO.6
NO.5
NO.4
NO.3
NO.2
NO.1
Low
7-bit
value
*
*
*
*
*
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
0
0
1
1
0
0
1
0
1
0
0
1
2
3
4
1
2
3
4
5
1-1
1-2
1-3
1-4
1-5
No limit
1hr
2hrs
3hrs
4hrs
*
0
0
0
0
1
0
1
5
6
1-6
5hrs
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
1
1
1
1
1
0
0
0
0
0
0
0
0
0
0
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
0
0
0
0
0
0
0
0
1
1
1
1
1
1
1
1
0
0
0
0
0
0
0
0
1
1
1
1
1
1
1
1
0
0
0
0
0
0
1
1
0
0
0
0
1
1
1
1
0
0
0
0
1
1
1
1
0
0
0
0
1
1
1
1
0
0
0
0
1
1
1
1
0
0
1
1
0
0
1
1
0
0
1
1
0
0
1
1
0
0
1
1
0
0
1
1
0
0
1
1
0
0
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
6
7
8
9
10
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
7
8
9
10
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
38
1-7
1-8
1-9
1-10
1-11
1-12
1-13
1-14
1-15
1-16
2-1
2-2
2-3
2-4
2-5
2-6
2-7
2-8
2-9
2-10
2-11
2-12
2-13
2-14
2-15
2-16
3-1
3-2
3-3
3-4
3-5
3-6
6hrs
7hrs
8hrs
9hrs
10hrs
11hrs
12hrs
13hrs
14hrs
15hrs
16hrs
17hrs
18hrs
19hrs
20hrs
21hrs
22hrs
23hrs
24hrs
25hrs
26hrs
27hrs
28hrs
29hrs
30hrs
31hrs
32hrs
33hrs
34hrs
35hrs
36hrs
37hrs
*
0
1
0
0
1
1
0
38
39
3-7
38hrs
*
0
1
0
0
1
1
1
39
40
3-8
39hrs
*
0
1
0
1
0
0
0
40
41
3-9
40hrs
*
0
1
0
1
0
0
1
41
42
3-10
41hrs
*
0
1
0
1
0
1
0
42
43
3-11
42hrs
*
0
1
0
1
0
1
1
43
44
3-12
43hrs
*
0
1
0
1
1
0
0
44
45
3-13
44hrs
*
0
1
0
1
1
0
1
45
46
3-14
45hrs
*
0
1
0
1
1
1
0
46
47
3-15
46hrs
*
0
1
0
1
1
1
1
47
48
3-16
47hrs
*
0
1
1
0
0
0
0
48
49
4-1
48hrs
*
0
1
1
0
0
0
1
49
50
4-2
49hrs
*
0
1
1
0
0
1
0
50
51
4-3
50hrs
*
0
1
1
0
0
1
1
51
52
4-4
51hrs
*
0
1
1
0
1
0
0
52
53
4-5
52hrs
*
0
1
1
0
1
0
1
53
54
4-6
53hrs
*
0
1
1
0
1
1
0
54
55
4-7
54hrs
*
0
1
1
0
1
1
1
55
56
4-8
55hrs
*
0
1
1
1
0
0
0
56
57
4-9
56hrs
*
0
1
1
1
0
0
1
57
58
4-10
57hrs
*
0
1
1
1
0
1
0
58
59
4-11
58hrs
*
0
1
1
1
0
1
1
59
60
4-12
59hrs
z 54 z
Chff^j\bZe Abj Chg]blbhg^j
Installation and Debugging
Two
Unit
Dialing setting
˄1 means dialing to ONˈ0 means dialing to OFF˅
Air
conditioner
installation
sequence
Unit
number
of central
controller
Two-unit
switchover
time
NO.8
NO.7
NO.6
NO.5
NO.4
NO.3
NO.2
NO.1
Low
7-bit
value
*
0
1
1
1
1
0
0
60
61
4-13
60hrs
*
0
1
1
1
1
0
1
61
62
4-14
61hrs
*
0
1
1
1
1
1
0
62
63
4-15
62hrs
*
0
1
1
1
1
1
1
63
64
4-16
63hrs
*
1
0
0
0
0
0
0
64
65
5-1
64hrs
*
1
0
0
0
0
0
1
65
66
5-2
65hrs
*
1
0
0
0
0
1
0
66
67
5-3
66hrs
*
1
0
0
0
0
1
1
67
68
5-4
67hrs
*
1
0
0
0
1
0
0
68
69
5-5
68hrs
*
1
0
0
0
1
0
1
69
70
5-6
69hrs
*
1
0
0
0
1
1
0
70
71
5-7
70hrs
*
1
0
0
0
1
1
1
71
72
5-8
71hrs
*
1
0
0
1
0
0
0
72
73
5-9
72hrs
*
1
0
0
1
0
0
1
73
74
5-10
73hrs
*
1
0
0
1
0
1
0
74
75
5-11
74hrs
*
1
0
0
1
0
1
1
75
76
5-12
75hrs
*
1
0
0
1
1
0
0
76
77
5-13
76hrs
*
1
0
0
1
1
0
1
77
78
5-14
77hrs
*
1
0
0
1
1
1
0
78
79
5-15
78hrs
*
1
0
0
1
1
1
1
79
80
5-16
79hrs
*
1
0
1
0
0
0
0
80
81
6-1
80hrs
*
1
0
1
0
0
0
1
81
82
6-2
81hrs
*
1
0
1
0
0
1
0
82
83
6-3
82hrs
*
1
0
1
0
0
1
1
83
84
6-4
83hrs
*
1
0
1
0
1
0
0
84
85
6-5
84hrs
*
1
0
1
0
1
0
1
85
86
6-6
85hrs
*
1
0
1
0
1
1
0
86
87
6-7
86hrs
*
1
0
1
0
1
1
1
87
88
6-8
87hrs
*
1
0
1
1
0
0
0
88
89
6-9
88hrs
*
1
0
1
1
0
0
1
89
90
6-10
89hrs
*
1
0
1
1
0
1
0
90
91
6-11
90hrs
*
1
0
1
1
0
1
1
91
92
6-12
91hrs
*
1
0
1
1
1
0
0
92
93
6-13
92hrs
*
1
0
1
1
1
0
1
93
94
6-14
93hrs
*
1
0
1
1
1
1
0
94
95
6-15
94hrs
*
1
0
1
1
1
1
1
95
96
6-16
95hrs
*
1
1
0
0
0
0
0
96
97
7-1
96hrs
*
1
1
0
0
0
0
1
97
98
7-2
97hrs
*
1
1
0
0
0
1
0
98
99
7-3
98hrs
*
1
1
0
0
0
1
1
99
100
7-4
99hrs
*
1
1
0
0
1
0
0
100
101
7-5
100hrs
*
1
1
0
0
1
0
1
101
102
7-6
101hrs
*
1
1
0
0
1
1
0
102
103
7-7
102hrs
*
1
1
0
0
1
1
1
103
104
7-8
103hrs
z 55 z
Chff^j\bZe Abj Chg]blbhg^j
Installation and Debugging
Two
Unit
Dialing setting
˄1 means dialing to ONˈ0 means dialing to OFF˅
Air
conditioner
installation
sequence
Unit
number
of central
controller
Two-unit
switchover
time
NO.8
NO.7
NO.8
NO.7
NO.8
NO.7
NO.8
NO.7
Low
7-bit
value
*
1
1
0
1
0
0
0
104
105
7-9
104hrs
*
1
1
0
1
0
0
1
105
106
7-10
105hrs
*
1
1
0
1
0
1
0
106
107
7-11
106hrs
*
1
1
0
1
0
1
1
107
108
7-12
107hrs
*
1
1
0
1
1
0
0
108
109
7-13
108hrs
*
1
1
0
1
1
0
1
109
110
7-14
109hrs
*
1
1
0
1
1
1
0
110
111
7-15
110hrs
*
1
1
0
1
1
1
1
111
112
7-16
111hrs
*
1
1
1
0
0
0
0
112
113
8-1
112hrs
*
1
1
1
0
0
0
1
113
114
8-2
113hrs
*
1
1
1
0
0
1
0
114
115
8-3
114hrs
*
1
1
1
0
0
1
1
115
116
8-4
115hrs
*
1
1
1
0
1
0
0
116
117
8-5
116hrs
*
1
1
1
0
1
0
1
117
118
8-6
117hrs
*
1
1
1
0
1
1
0
118
119
8-7
118hrs
*
1
1
1
0
1
1
1
119
120
8-8
119hrs
*
1
1
1
1
0
0
0
120
121
8-9
120hrs
*
1
1
1
1
0
0
1
121
122
8-10
121hrs
*
1
1
1
1
0
1
0
122
123
8-11
122hrs
*
1
1
1
1
0
1
1
123
124
8-12
123hrs
*
1
1
1
1
1
0
0
124
125
8-13
124hrs
*
1
1
1
1
1
0
1
125
126
8-14
125hrs
*
1
1
1
1
1
1
0
126
127
8-15
126hrs
*
1
1
1
1
1
1
1
127
128
8-16
127hrs
z 56 z
Chff^j\bZe Abj Chg]blbhg^j
12 Connecting board IGU04 0010451976
IGU04 detector is used with ICR01 central controller, IGU04 appearance and dimension is same with
detector YCJ-A001
12.1 Appearance
12.2 PCB photo and drawing
S1
LED4
IGU04
From central
controller
B-A
B-B
P
Q
LED2
To o u t d o o r
units
From central
controller
To 220V,50Hz
To indoor
units
CN1
J4
LED3
LED1
Caution: One central controller can control Up to 5 units of IGU04
2. Dip switch setting of connecting board ICR01
The dip switch is as below figure (ON:1, OFF: 0):
ON
S1
1
2
3
8.9
8/9
EDG@H@DC
809
819
J
J
J
J
-
-
J
J
J
J
.
J
J
.
-
.
.
4
5
6
7
8
=>G<F@EH@DC
829
,,,,
.
.
839
849
859
-
-
.
<DCC><H@C? ;D:F= :==F>GG 7.
.
.
.
.
.
<DCC><H@C? ;D:F= :==F>GG
<DCC><H@C? ;D:F= :==F>GG 7/
730
731
<>CHF:A ;IG A@C>6 03--;:I=
<>CHF:A ;IG A@C>6 /1--;:I=
<DCC><H@C? ;D:F= :==F>GG
B:CI:A G>H :==F>GG
z 57 z
Commercial Air Conditioner
S1(3-8) is used to set IGU04 address, in one central control system, the address of IGU04
must be different.
12.3.Summarization
For installation information ,please refer central controller ICR01 manual , one ICR01 can
control up to 5 sets of IGU04.
z 58 z