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1
Ducted Type Air Conditioner
Indoor unit with round air outlet
Indoor unit with rectangle air outlet
Indoor unit with high static pressure(with filter in return air inlet
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2
Outdoor unit (2.6kw~10kw)
Outdoor unit (12kw~16kw)
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1. Summary and Features
1.1 Model Designation
FG / N-
Unit type
Power type
Refrigerant type
Static pressure type
Cooling capacity
Product type
Ducted type air conditioning
Meaning of standard model before/
Meaning FG Product type Cooling capacity Static pressure type
Cooling only type-omitted Common type-omitted
Heat pump auxiliary
electric heat type-R
High static pressure-H
Expression
method
Ducted type air
conditioning
Nominal cooling
capacity (kW)
The outdoor unit is not
expressed.
Meaning of supplementation code after /
Meaning Refrigerant Power supply type Indoor and outdoor unit code
R22-omitted 1Ph-220~230V-50Hz-o
mitted
Outdoor unit-O
R407-N 1Ph-220~230V-50Hz
below 10kw-E
Indoor unit-I
Expression
method
R410a-Na 3Ph-380~420V-50Hz-M The entire unit is notexpressed.
Example1FGR2.6/NIt refers to the ducted air conditioning unit with a nominal cooling capacity of 2.6kW. Its
refrigerant is R407C, power supply is 1Ph-220~230V-50Hz.
2FGR10/N-MIt refers to the ducted air conditioning unit with a nominal cooling capacity of 10kW. Its
refrigerant is R407C, power supply is Ph-380~420V-50Hz.
1.2 Product feature
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GREE FG Series Ducted type Air-conditioning Units has combined the comfort, top grade from the central
air conditioners as well as the convenient installation and facility from the mini type of the split air conditioners. It
could be divided into the ordinary units and high static pressure units can satisfy with the different requirements
from customers. The FG Series Ducted Air-conditioning Units can be widely used in small supermarkets,
chain stores, hotels, restaurants, offices and meeting rooms etc. Is especially fit for the small commercial
and industrial application.
a) Flexible installationair-supply or air-return type, condensation water exit direction, andmodes of twyer(adopting neither air back or rear air back) etc can be selected flexibly;
b) Energy effectivelyquality compressor, hydrophilic aluminum sheet and inner groovecopper pipe are adopted, so as to improve the efficiency of units greatly;
c) Long-distance duct air supply : it adopt high static pressure design, so air is centralized
handling in the indoor unit and implant long-distance duct air supply.
d) Good indoor air quality: it can connect many supply-air outlet to the duct, so that it can
make the temperature and humidity of the whole room equality, meanwhile, it can lead in
fresh air, makes well indoor unit air quality
e) Reliably operation: it has perfect safe protection function, and powerful malfunction
self-diagnosis function;
f) Convenient operation: Simple controller and intelligent remote controller make unit
more convenient operation.
1.3 Microcomputer control system, as shown in table 1-1.
Table 1-1
Control function Protection function Display function
Memory function High/low pressure protection Timing ON/OFF display
Remote control function Overload protection Fan speed display
Timing function Over current protection Function model display
Self-diagnosis with alarm
function
Discharge high temperature
protection Defrosting display
Sleep function Reverse (open) phase protection Testing display
Automatic functionAnti-freeze temperature
sensorSleep mode display
Cool air proof functionAnti-high temperature
protectionTemperature display
Blow residual heat function Sensor malfunction alarm Malfunction code display
Sub-room control function
Centralization control
function
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Control function Memory function: when unit restart after power off, it will run on former status, the mode and parameter are
kept the same
Remote control function: wireless controller and remote controller can be opted, and the maximum control
distance of remote controller is 10m.
Timing function: it can timing ON/ OFF separately, meanwhile, it can also can timing on circularly
Self-diagnosis with alarm function : once unit has malfunction, the malfunction code will be indicated and
alarm ring immediately
Energy efficiency: it can self control for saving energy in energy saving mode.
Automatic model function: the fan of indoor unit can adjust fan speed automatically based on actual demand
when cooling or heating under automatic mode
Cool air proof function: the fan starts only when the temperature of indoor unit heat exchanger is higher than
indoor temperature under heating mode
Sub-room control function: it can control the unit by controlling each sub-room
Blow residual heat function: under heating mode, fan of indoor unit will work for a period after compressor
stops
Protection function
High/low pressure protection: when suction pressure is too low or discharge pressure is too high, compressor
will stop and unit display malfunction code
Overload protection: compressor has its own overheat protection, once the temperature of compressor is
higher than allowable level, compressor will stop and only when temperature recovery, compressor restart
Over current protection: once the current of compressor is higher that normal level, compressor will stop and
unit display malfunction code
Discharge high temperature protection: once the discharge temperature of compressor is higher than
allowable value, compressor will stop and unit display malfunction code
Reverse (open) phase protection: once the phase sequence of power supply is incongruent or the phase is
absent, unit cant work and display malfunction code (Remark: this function is only available for
FG(R)10/N-M and FG(R)12/N-M)
Anti-freeze temperature protection: once the heat exchanger temperature of indoor unit is
too low, compressor will stop and unit display malfunction code.
Anti-high temperature protection: once the heat exchanger temperature of indoor unit is too
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high, compressor stop and unit display malfunction code.
Sensor malfunction alarm: once the sensor short out or shutdown, unit will display malfunction code.
Display function Time display: display and set real time
Timing turn ON/OFF display: display and timing turn ON/OFF time.
Cancel timing display: display the cancel of timing
Fan speed display: display the speed (highmediumlow) of fan
Function mode display: cooling modedehumidifying modeheating modefan mode
Defrost display: display defrosting status under deforst mode
Testing display: display testing mode
Energy efficiency display: display energy saving mode
Temperature display: display room temperature and set temperature
Malfunction code display
Centralization control system (optional function)Ducted Type Air Conditionerhas centralization control function, each centralization controller can
control 16 set of main units simultaneously and control each main unit separately, this function
can make you more convenient for controlling main units. The centralization controller of
Ducted type air conditioner communicate with wire controller of each unit by 485 mode, the
longest distance is 1200m; centralization controller can display the code of each unit that is
delimited by the different dial-up location of each unit. The connection of centralization
controller and wire controller is as follow fig:
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Remark: if you need this function, please notify us before ordering.
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2. Specification and technical parameter
2.1 Nominal work condition and working temperature rangeas shown in table 2.1-1
Table 2.1-1
Work condition Temperature Indoor air temperature Outdoor air temperature
Nominal 27 DB / 19 WB 35 DB / 24 WB
Max. 32 DB / 23 WB 43 DB / 26 WBCooling
Min. 18 DB / 14 WB 18 DB /
Nominal 20 DB / 7 DB / 6 WB
Max. 24 DB / 18 WB 27 DB /Heating
Min. 15 DB / 7 DB / -8 WB
2.2 Specification and technical parameter
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2.2.2 Technical parameter of FG(R)2.6/NFG(R)3.5/NFG(R)5/NFG(R)7/N-E
COOLING HEATING COOLING HEATING COOLING HEATING COOLING HEATING
2600 2900 3500 3700 5000 5800 7000 8200
930 998 1340 1217 1935 1849 3000 3000
1300 1300 1850 1850 2750 2750 4050 4050
4.5 5 6.8 6.1 8.9 8.54 14.6 13.5
2.796 2.906 2.612 3.04 2.584 3.137 2.3 2.7
Model of Indoor Unit
Fan Motor Speed (r/min) (H/M/L)
Output of Fan Motor (w)
Fan Motor Capacitor (uF)
Fan Type-Piece
Diameter-Length (mm)
Evaporator
Pipe Diameter (mm)
Row - Fin Gap (mm)
Working Area (m2)
Swing Motor Model
Output of Swing Motor (W)
Fuse (A)
Sound Pressure Level dB (A) (H/M/L)
Dimension (W/D/H)( mm)
Dimension of Package (W/D/H)( mm)
Net Weight /Gross Weight (kg)
Model of Outdoor Unit
Compressor Model
L.R.A. (A)
Overload Protector
Throttling Method
Starting Method
Working Temp Range ()
Condenser
Pipe Diameter (mm)
Rows - Fin Gap (mm)
Working Area (m2)
Fan Motor Speed (rpm) (H/M/L)
Output of Fan Motor (W)
Fan Motor Capacitor (uF)
Air Flow Volume of Outdoor unit(m3 /H)
Fan Type-Piece
Fan Diameter (mm)
Defrosting Method
Sound Pressure Level dB (A) (H/M/L)
Dimension (W/D/H)( mm)
Dimension of Package (W/D/H)( mm)
Net Weight /Gross Weight (kg)
Refrigerant Charge (kg)
Length (m)
Liquid Pipe 1/4" Liquid Pipe 1/4" Liquid Pipe 1/4" Liquid Pipe 3/8"
Gas Pipe 3/8" Gas Pipe 1/2" Gas Pipe 1/2" Gas Pipe 5/8"
Height (m) 15 Height (m) 15 Height (m) 15 Height (m) 15
Length (m) 20 Length (m) 20 Length (m) 20 Length (m) 25
5 5
950x412x700
1100x450x905
75/80
2.8 (R407C)2.1 (R407C)
59/64
Axial fan1
450
Auto defrost
59
780
60
3
2600
Aluminum fin-copper tube
9.52
2-1.8
0.56
3HM
Capillary
PSC
-7DB43DB
55/59
FG(R)7/N-E(O)
C-RN220H5B
75
3.15A
46/44/42
1108x756x300
1245x785x360
3-1.8
0.24
----
----
Centrifugal fan -3
190x200
Aluminum fin-copper tube
9.52
FG(R)7/N-E
230V ~
50Hz
1200
2.7
FG(R)7/N-E(I)
1050/1000/750
150
8
57
760x250x530
878x360x590
2200
Axial fan1
450
Auto defrost
0.44
780
60
3
-7DB43DB
Aluminum fin-copper tube
9.52
2-1.7
55
UP3-07
Capillary
PSC
1068x766x320
36/39
FG(R)5/N(O)
CHW33TC4-U
----
3.15A
42/41/40
980x736x276
9.52
3-1.8
0.18
----
4
Centrifugal fan -2
155x175
Aluminum fin-copper tube
2
FG(R)5/N (I)
1250/1150/1050
70
FG(R)5/N
230V ~
50Hz
840
Model FG(R)2.6/N
Function
Rated Voltage 230V ~
Rated Frequency 50Hz
Capacity (W)
Power Input (W)
Rated Input (W)
Rated Current (A)
Air Flow Volume (m3/h) 450
Dehumidifying Volume (Kg/h) 1.01
C.O.P / EER (W/W)
Indoorunit
FG(R)2.6/N (I)
770/570/500
20
1.5
Centrifugal fan -2
155x175
Aluminum fin-copper tube
6
2-1.6
0.15
----
----
3.15A
38/37/36
913x680x220
1012x708x275
27/31
Outdoorunit
FG(R)2.6/N (O)
C-RV167H01AA
23
MST20ALU-9201
Capillary
PSC
-7DB43DB
Aluminum fin-copper tube
9.52
1-1.6
0.31
805
30
2.5
1200
Axial fan1
400
Auto defrost
Conn
ectio
n
Pipe
Outer Diameter
Max Distance
55
760x250x530
878x360x590
32/37
FG(R)3.5/N
230V ~
50Hz
520
1.4
FG(R)3.5/N (I)
1100/870/720
20
2.5
Centrifugal fan -2
155x175
Aluminum fin-copper tube
6
3-1.6
0.14
----
----
3.15A
40/39/38
913x680x220
1012x708x275
27/31
FG(R)3.5/N (O)
C-RV227H01AA
31
MRA98619-9200
Capillary
PSC
-7DB43DB
Aluminum fin-copper tube
9.52
1-1.4
0.31
885
48
3
2200
Axial fan1
450
Auto defrost
0.9 (R407C)
5 5
56
760x250x530
878x360x590
32/37
0.95 (R407C)
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2.2.3 FG(R)10/N-EFG(R)10/N-MFG(R)12/N-MFGR16/NC-M technical parameter
COOLING HEATING COOLING HEATING COOLING HEATING HEATING
10000 11000 10000 11000 12000 13200 16000 18000
4200 4200 4200 4200 5200 5200 5900 6000
5670 5670 5670 5670 7020 7020 10980 14580
19.6 19.6 7.3 7.3 8.7 8.7 13 12.5
2.4 2.6 2.4 2.6 2.3 2.5 2.71 3
Model of Indoor Unit
Fan Motor Speed (r/min) (H/M/L)
Output of Fan Motor (w)
Fan Motor Capacitor (uF)
Fan T ype-Piece
Diameter-Length (mm )
Evaporator
Pipe Diameter (mm)
Row - Fin Gap (mm)
Working Area (m2)
Swing Motor Model
Output of Swing Motor (W)
Fuse (A)
Sound Pressure Level dB (A) (H/M/L)
Dimension (W/D/H)( mm)
Dimension of Package (W/D/H)( mm)
Net Weight /Gross Weight (kg)
Model of Outdoor Unit
Compressor Model
L.R.A. (A)
Overload Protector
Throttling Method
Starting Method
Working Temp Range ()
Condenser
Pipe Diameter (mm)
Rows - Fin Gap (mm)
Working Area (m2)
Fan Motor Speed (rpm) (H/M/L)
Output of Fan Motor (W)
Fan Motor Capacitor (uF)
Air Flow Volume of O utdoo r unit(m3 /H )
Fan T ype-Piece
Fan Diameter (mm)
Defrosting Method
Sound Pressure Level dB (A) (H/M/L)
Dimension (W/D/H)( mm)
Dimension of Package (W/D/H)( mm)
Net Weight /Gross Weight (kg)
Refrigerant Charge (kg)
Length (m)
Liquid Pipe 1/2" Liquid Pipe 1/2" Liquid Pipe 1/2" Liquid Pipe 1/2"
Gas Pipe 3/4" Gas Pipe 3/4" Gas Pipe 3/4" Gas Pipe 3/4"
Height (m) 25 Height (m) 25 Height (m) 25 Height (m) 25
Length (m) 35 Length (m) 35 Length (m) 35 Length (m) 35
123/134
1110x450x1280
5
3.8 (R407C)
112/123
Axia l fan2
450
Auto defrost
63
950X 412X 1250
5
5 (R407C)
940
92
4
6000
Alum inum fin-copper tube
9.52
2-1.8
0.83
UO-10-16A
Capillary
PSC
-7DB43DB
95/100
FGR16/NC-M(O)
C-SB453H8A
48
3.65A
53/49/46
1463x 756x370
1514x785x430
3-1.8
0.318
----
----
Centrifugal fan -3
190x200
Alum inum fin-copper tube
9.52
FGR16/NC-M
400V 3N ~
50Hz
3500
5.2
FGR16/NC-M(I)
1100/1000/900
180/80
10/5
62
950x340x1250
1110x450x1280
5200
Axial fan2
450
Auto defrost
0.83
840
68
3.5
-7DB43DB
Alum inum fin-copper tube
9.52
2-1.8
48
34HM500-B
Capillary
PSC
1514x785x360
72/76
FG(R)12/N-M(O)
C-SBN373H8A
----
3.15A
48/46/44
1463x756x300
9.52
3-1.80.318
----
8/5
Centrifugal fan -3
190x200
Alum inum fin-copper tube
4.8
FG(R)12/N-M (I)
1050/1000/750
150/75
FG(R)12/N-M
400V 3N ~
50Hz
2000
Model FG(R)10/N-E
Function
Rated Voltage 230V ~
Rated Frequency 50Hz
Capacity (W)
Power Input (W)
Rated Input (W)
Rated Current (A)
Air Flow Volume (m3/h) 2000
Dehumidifying Volume (Kg/h) 4
C.O.P / EER (W/W)
Indoor
unit
FG(R)10/N-E (I)
1050/1000/750
150/75
8/5
Centrifugal fan -3
190x200
Alum inum fin-copper tube
9.52
3-1.80.318
----
----
3.15A
48/46/44
1463x756x300
1514x785x360
72/76
Outdoorunit
FG(R)10/N-E (O)
C-SBN301H5A
48
UP16RC1210-Z1
Capillary
PSC
-7DB43DB
Alum inum fin-copper tube
9.52
2-1.8
0.56
840
68
3.5
5200
Axial fan2
450
Auto defrost
Conn
ectio
n
Pipe
Outer Diameter
Max Distance
62
950x340x1250
1110x450x1280
112/123
FG(R)10/N-M
400V 3N ~
50Hz
2000
4
FG(R)10/N-M(I)
1050/1000/750
150/75
8/5
Centrifugal fan -3
190x200
Alum inum fin-copper tube
9.52
3-1.8
0.318
----
----
3.15A
48/46/44
1463x756x300
1514x785x360
72/76
FG(R)10/N-M (O)
C-SBN303H8A
48
34HM500-B
Capillary
PSC
-7DB43DB
Alum inum fin-copper tube
9.52
2-1.8
0.83
840
68
3.5
5200
Axial fan2
450
Auto defrost
3.55 (R407C)
5 5
62
950x340x1250
1110x450x1280
112/123
3.55 (R407C)
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3. Characteristic chart
3.1 The relationship between low pressure of air conditioner and temperatureas shown inchart 3-1
Cooling mode: the working condition of indoor and outdoor is the same.
Heating mode: the working condition of indoor is: 21 DB/15.5 WB
50 60 70 80(%)
2
3
4
5
6
7
15 20 25 30 35
DB()/Humidity(%)
Lowp
ressure(ab
solutedate)bar
2
3
4
5
6
7
0 5 10 15 20
DB()/Humidity(%)
Lowp
ressure(absolutedate)bar
(a) Cooling mode (b)Heating mode
chart 3-1
3.2 Performance chart ( as shown in chart 3-2)
(a) Cooling (b)Heating
chart 3-2
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3.3 The relationship between cooling capacitycharge of refrigerant and the length of connectpipeas shown in chart 3-3
92%
94%
30 40
90%
30
20
96%
98%
10
0 100%
-30
-20
-10
10 20
(m)
(m)
(a) relationship between cooling capacity (b) relationship between charge of refrigerant
and length of pipe and length of pipe
chart 3-3
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4. Main parts name4.1 Indoor unit and outdoor unit structure schematic plan
fig. 4-1Indoor unit
Remark1round air outtake 2rectangular air outtake
3condensate water pipe 4return air intake
Fig. 4-2 Outdoor unit
Remark4air intake 5air outtake
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5. Outlines and dimensions of the units5.1 Outlines and dimensions of indoor unit (as shown in chart. 5-1)
(a)FGR2.6/NFGR3.5/N
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bFG(R)5/N(I)~ FG(R)16/NC-M(I)
chart 5-1Outlines and dimensions of indoor unit
5.2 Outlines and dimensions of outdoor unitas shown in chart.5-2
E
A
D
B
chart 5-2
Item
ModelA B C D E F G H I J
FG(R)5/N(I) 932 430 738 904 980 736 738 207 207 266
FG(R)7/N-E(I) 1112 420 918 1070 1155 756 1008 207 250 300
FG(R)10/N-M(I) 1382 420 1155 1340 1425 756 1278 207 250 300
FG(R)10/N-E(I) 1382 420 1155 1340 1425 756 1278 207 250 300
FG(R)12/N-M(I) 1382 420 1155 1340 1425 756 1278 207 250 300
FG(R)16/NC-M(I) 1382 420 1155 1340 1425 756 1278 273 320 370
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ModelItem
FG(R)2.6/N(O)FG(R)3.5/N(O)FG(R)5/N(O)
FG(R)7/N-E(O)FG(R)10/N-E(O)FG(R)10/N-M(O)FG(R)12/N-M(O)FG(R)16/NC-M(O)
A 760 950
B 320 412
C 530 700 1250
D 540 572
E 286 378
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6. Air conditioner working principle
Cooling cycleLow temperature and low pressure refrigerant gas goes from evaporator,then be suction into compressor and compressed into high temperature and high pressure gas by
compressor and discharge to condenser; in condenser, the high temperature and high pressure gas
exchange heat with outdoor fresh air, then the gas becomes high temperature and high pressure
liquid; then it is cooled and decompressed by capillary and go into evaporator. In the evaporator, the
liquid refrigerant and gas refrigerant are mixed and evaporated, the heat which is demanded for
evaporation is supplied by indoor air, so the indoor air is cooled at the same time. Then the gas from
evaporator goes into compressor again, so the cooling cycle begins. And the cooled air is supplied
into air conditioning area through duct by fan.Heating cycle: The heating cycle is inverse cycle to cooling cycle. Four-way valve changes
its direction, so refrigerant change the direction. It means the high temperature and high pressure
refrigerant gas goes from compressor and into indoor heat exchanger, after the refrigerant is
condensed by condenser and throttled by capillary, it goes into outdoor heat exchanger and be
evaporated, then be suctioned by compressor again, so the heating cycle begins. And the warm air is
supplied into air conditioning area through duct by fan.
Working principle schematic for cooling only unit
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Working principle schematic for heat pump unit
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1
7. Electric schematic diagram
7.1 Indoor unit static-pressure adjustment wiring diagramMulti-static pressure indoor unit can adjust its static pressure by changing wire
connection mode. There are two unit type: standard static pressure mode and high
static pressure mode, their wiring diagram is as follows(refer to fig. 7.1-1)
XT2
XT3
2
2
1
1
FH
FM
FL FL
FH
FM
XT2
1
2
1
XT3
2
High static pressure typeStandard static pressure type
(omitted type from factory)
Contr
olpanel
white
black
yellow
blue
blue
blue
yellow
yellow
blackblack
white
white
Contr
olpanel
white
black
yellow
blue
blue
blue
yellow
yellow
blackblack
white
white
(a)double-motor high static pressure type
FL
FH
FM
XT2
1
2
1
XT3
2
XT2
FL
FM
FH
1
2
1
2
XT3
Standard static pressure type(omitted type from factory)
High static pressure type
Controlpanel
Controlpanel
white (yellow)
black (red)
yellow (blue)
blue (black)
white (yellow)
black (red)
yellow (blue)
blue (black)
white (yellow)
black (red)
yellow (blue)
blue (black) blue (black)
yellow (blue)
black (red)
white (yellow)
(b) single-motor high static pressure type
fig. 7.1-1
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2
7.2 Electric wiring diagram of units
Electric wiring diagram of FG2.6/N, FG3.5/N
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3
Electric wiring diagram of FGR2.6/N, FGR3.5/N
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4
Electric wiring diagram of FG5/N
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5
Electric wiring diagram of FGR5/N
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6
Electric wiring diagram of FG7/N-E
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7
Electric wiring diagram of FGR7/N-E
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8
Electric wiring diagram of FG10/N-E
5F
8F
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9
Electric wiring diagram of FGR10/N-E
5F
8F
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10
Electric wiring diagram of FG10/N-M, FG12/N-M
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11
Electric wiring diagram of FGR10/N-M, FGR12/N-M
8F
5F
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12
Electric wiring diagram of FGR16/NC-M
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8. Wire controller function and operation
8.1 Composition and function of wire controllertype one as shown in fig 8.1-1
88:88
8888
LCDDisplay information.
ON/OFF buttonpress one time, unitturn on; press once
again, unit turn off
Automatichighmediumlow
Fan speed control button:every
press, speed adjust as follows:
Sleep mode button:press
one time, enter sleep
mode, press once again,
exit sleep mode
Timing button: set timing turn
OFF/ON under ON/OFF status.press every time, the timing willadd half an hour.
The circle mode is as follows:0--24hours
cancel timing
Temperature buttonpress
every time , settedtemperature rises 1pressevery time , setted timereduce 1
Mode button: pressevery time, mode
change as follows:
dehumidifyheatingblow
Automaticcooling
ON/OFF
Sleep
Timing
Fan speed
Mode
Temperature adjust
ON/OFF
Timing
AM PM Hour Swing
Sleep
Auto
Setting EnvironmentDefrost
Test
Fan speed
Auto Cool Dry
HeatBlowMode
Fig 8.1-1
8.2 Operation of wire controller1) Cooling operation methodas shown in fig 8.2-1
Micro-computer can select cool mode ON or OFF according to the temperature
differential between set temperature-Tsetand indoor air temperature- Tindoor that
is detected by temperature sensor.
When Tindoor is higher than Tset, the unit start to work in cool mode.
When Tindoor is lower than Tset, the cool mode turn off, only the fan of indoor unit
works.
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The set temperature rang is in the range of 1630
ModeSwing
Sleep
Temperature adjust
Hour
ON/OFFTiming
AM PM
Fan speed
Auto
ON/OFF
Fan speed
Test
88
BlowMode
CoolAuto
Sleep
Timing
Setting Defrost Environment
Dry
Heat
88
88:88
1.Make sure
power is supplied,
press this button,
unit starts work.
2.Press this button
to choose operate
mode-cool
3.Press this button
to set fan speed 4.Press this buttonto set temperature
Fig 8.2-1
2) Heating operation methodas shown in fig8.2-2When Tindoor is lower than Tset, compressor start to work, and heating mode operate.
When Tindoor is higher than Tset, compressor and fan of outdoor unit stop, only thefan of indoor unit still works.
When heating mode is in operation, if the outdoor temperature is low and humidity
is low, the outdoor unit will frost and then heating efficiency reduces. In such
a case, unit will begin the defrost cycle automatically. And the controller panel
will display Defrost.
The set temperature range is 1630
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ModeSwing
Sleep
Temperature adjust
Hour
ON/OFF
Timing
AM PM
Fan speed
Auto
ON/OFF
Fan speed
Test
88
BlowMode
CoolAuto
Sleep
Timing
Setting Defrost Environment
Dry
Heat
88
88:88
1.Make surepower is supplied,press this button,unit starts work.
3.Press this button
to set fan speed 4.Press this buttonto set temperature
2.Press this buttonto choose operatemode-heat
8.2-2
3) Dry mode operation method, as shown in fig8.2-3When Tindoor is in the range of Tset,2the unit work in cool mode. When Tindoor is
higher than Tset, the unit start to work in cool mode, and the speed of indoor unit
fan can be adjusted.
The set temperature range is 1630
1.Make sure
power is supplied,
press this button,
unit starts work.
88:88
88
Heat
Dry
EnvironmentDefrostSetting
Timing
Sleep
Auto Cool
Mode Blow
88Test
Fan speed
ON/OFF
Auto
Fan speed
AM PM
Timing
ON/OFF
Hour
Temperature adjust
Sleep
SwingMode
2.Press this button to choose
operate mode-Dry( theindoor unit fan speed can't
adjust under this mode).
3.Press this buttonto set temperature
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Fig. 8.2-3
4) Auto mode operation methodas shown in figure8.2-4When the unit run in auto mode, the standard set temperature for cooling is 26, and the
standard set temperature for heating is 20.
ModeSwing
Sleep
Temperature adjust
Hour
ON/OFF
Timing
AM PM
Fan speed
Auto
ON/OFF
Fan speed
Test
88
BlowMode
CoolAuto
Sleep
Timing
Setting Defrost Environment
Dry
Heat
88
88:88
1.Make sure
power is supplied,
press this button,
unit starts work.
2.Press this button to choose
operate mode-Auto, then
microcomputer will choose
operation status-coolingheatingdryingautomatically for the mostcomfortable condition.
8.2-4
5) Sleep mode operation method, as shown in figure8.2-5
When the unit runs in Cool mode or Dry mode, press Sleep button and after it operates for 1
hour, the pre-set temperature will increase by 1. After 2 hours, the pre-temperature will increase
by another 1. Then based on this set temperature, the cool mode or Dry mode operation is
performed.
When the unit runs in Heat mode, press Sleep button and after it operates for 1 hour, the
pre-set temperature will reduce by 1. After 2 hours, the pre-temperature will reduce by another 1
. Then based on this set temperature, the Heat mode operation is performed.
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ModeSwing
Sleep
Temperature adjust
Hour
ON/OFF
Timing
AM PM
Fan speed
Auto
ON/OFF
Fan speed
Test
88
BlowMode
CoolAuto
Sleep
Timing
Setting Defrost Environment
Dry
Heat
88
88:88
1.Make sure
power is supplied,
press this button,
unit starts work.
4.Press this button
to set temperature
3.Press this button
to set fan speed
5.Press this button,
unit runs in sleep
mode, and press
once again, unit exit
sleep mode.
2.Press this button to
choose operate
mode-CoolDry orHeat.
Fig.8.2-5
8.3 Wire controller malfunction displayWhen there is malfunction existing in the system running, malfunction code will be displayed
on the controller panel. The meaning of malfunction codes are as shown in table 8.3-1
Table 8.3-1
Malfunction code Malfunction
E1 Compressor high pressure protection
E2 Indoor unit anti-freezing protection
E3 Compressor low pressure protection
E4Compressor air discharge high temperatur
protection
E5 Compressor overload protection
E6 Communication malfunction
F0 Indoor unit tube sensor malfunction
F1 Evaporator temperature sensor malfunction
F2 Condensor temperature sensor malfunction
F3 Outdoor unit tube sensor malfunction
F4 Air discharge temperature sensor malfunction
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8.4 Name and function of wire controllertype two as shown in fig 8.4-1
Fig.8.4-1
Composition of wire controller
1 Timing display 10 Display of sleep mode
2Fan speed display (auto, high speed,
middle speed, low speed)11 Mode button
3 Display of defrost mode 12 Button for increasing the set temperature
4 Display of energy-saving mode 13 Button for reducing the set temperature
5 Display of set temperature 14 Fan speed button(can set fresh air)
6 Display of room temperature 15Button of sleep mode(for require the
ambient temperature)
7 Display of fresh air mode 16 Button for timing
8Display of operation modeautomatic,
cooling, dry, heating, fan17 ON/OFF button
9 Display of malfunction status
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Auto -------- 1630
Fan -------- No temperature setting function
Fig.8.5-4 Fig.8.5-5 Fig.8.5-6
8.5.4 Sleep function setting (as shown in figure 8.5-4
When the unit runs in Cool mode or Dry mode, press Sleep button and after it operates for 1hour, the pre-set temperature will increase by 1. After 2 hours, the pre-temperature will increase
by another 1. Then based on this set temperature, the cool mode or Dry mode operation is
performed.
When the unit runs in Heat mode, press Sleep button and after it operates for 1 hour, the pre-set temperature
will reduce by 1. After 2 hours, the pre-temperature will reduce by another 1. Then based on this set
temperature, the Heat mode operation is performed.
8.5.5 Operation mode setting (as shown in figure 8.5-5)
NoteThe auto mode of this air-conditioning unit can only be controlled by the wire controller but not the
remote controller.
If this button is pressed consecutively, the operating mode shall change as per the following sequence
CoolingDehumidifyingFanHeatingAuto
When the unit operates under cooling mode, the Cool word shall be displayed. Now the set temperature
must be lower than the ambient temperature, or else, the unit shall not run in cooling mode but only in fan
mode.
When the unit operates under dehumidifying mode, the DRY word shall be displayed. Now the fan of
indoor unit shall operate in low speed within a certain range of temperature. The dehumidifying effort under
this mode is better than that under cooling mode and saves more energy.
When the unit operates under heating mode, the Heat word shall be displayed. Now the set temperature
must be higher than the ambient temperature, or else, the unit shall not run in heating mode but only in fan
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mode.
When the unit operates under fan mode, the Fan word shall be displayed. When the unit operates under
auto mode, the Auto word shall be displayed and the unit shall adjust its speed automatically according to the
ambient temperature.
When the unit operates under heat mode and the ambient temperature is low and humidity is high, frost shall
generate at the outdoor unit and the heating efficiency shall be decreased. When frosting happens, the unit shall
runs in defrost mode automatically, and Defrost word shall be displayed.
Note: The cooling only type unit does not have heat mode, and once the energy mode is set, the auto mode
shall be invalidated.
8.5.6 Timing setting (as shown in figure8.5-6)
When the unit is turn off, timing start can be set; after the unit is turn on, timing turnoff can be set. Press the
Time button, the unit enters the timing status and the word TIME flashed on the display. Now user can
press or to increase or reduce the set time. Press the TIME button again and then the timing shall go
into effect. Now the unit starts to count the time passed. When the unit is under timing status, you can cancel
timing set by pressing the TIME button.
The range of set time is between 0.5 to 24 hours.
Fig.8-.5-7 Fig. 8.5-8 Fig.8.5-9
8.5.7 Fresh air valve setting (as shown in figure8.5-7)
When the unit is turn off, you can enter the fresh air setting by pressing the FAN button for 5 seconds. The
word FRESH shall flash on the LCD and the set temperature area shall display the current fresh air setting. User
can adjust the fresh air set by pressing the button or button.
Definitions of the code:
00 always turn off.
01the unit operate continually for 60 minutes, and the fresh air valve opens for 6 minutes.
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the last button input, and the normal shutoff status interface shall be displayed.
After the above setting are completed, the system shall display SAVE when the unit turn on the next time.
Now the set temperature shall not exceed the temperature range of the energy saving setting before. For example,
the lower cooling limit temperature is set as 23 and the upper cooling limit temperature is set as 27 for the
energy saving temperature setting as shown in fig.8.5-8, so the cooling temperature can only be selected in the
range of 23 to 27 by using the remote controller or the wire controller later.
If the upper limit temperature is the same as the lower limit temperature, the system can only operate at such
temperature under relevant modes.
Remove of energy saving setting: To remove the energy saving setting after it takes into effect, you can
press the FAN button and the button simultaneously for 5 consecutive seconds when the unit turn off. But
the data set before will not be cleared but as the initial set temperature for the next energy saving setting.
After the unit is disconnected to power supply, the energy saving setting shall be stored. The
setting still functions when the unit is connected to power supply again.
If the energy saving mode is set, the sleep mode and the auto mode shall be invalidated.
8.5.9 Display of outdoor ambient temperature (as shown in figure 8.5-9)
Under normal condition, the OUT ENV area shall only display the indoor temperature. Press the SLEEP
button for 5 consecutive seconds when the unit is turn off or turn on, the LCD shall display OUT ENV. After
the outdoor temperature is display for 10 seconds, the system shall return to the display interface of indoor
temperature. Note: if the unit is not equipped with an outdoor ambient temperature sensor, the unit shall not have
this function.
Fig.8.5-10 Fig.8.5-11 Fig.8.5-12
8.5.10 Power-fail memory function setting (as shown in figure8.5-10)
Press and hold the MODE button for 10 seconds when the unit is turn off to switch set values so as to
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decide if the unit operating status for shutoff status shall be memorized after a power fail. If the set temperature
area display 01, it means the unit operating status or shutoff status shall be memorized after a power fail; 02
means the operating status or shutoff status shall not be memorized. Press the ON/OFF button to store the set
value and exit the setting.
8.5.11 Debug function (as shown in figure8.5-11)
When the unit is turn off, press the FAN button and the SLEEP button simultaneously for
10 seconds to activate the debug menu. Now the LCD displays DEBUG. Press the MODE
button to select setting item and the button and the button to set actual value.
Setting of ambient temperature sensor.
Under the debug mode, press the MODE button so as to display 01 on the set temperature area (at the
left of the word DEBUG). The OUT ENV area (at the right of the word DEBUG) displays setting status. Now
use the button and the button to select from the following two setting:
The indoor room temperature is measured at the return-air intake (Now the OUT ENV area display
01).
The indoor room temperature is measured at the wire controller (Now the OUT ENV area display 02).
The default room temp. sensor is located at the return-air intake.
8.6 Malfunction display(as shown is figure.8.5-12)
When there is malfunction in the unit operation, the word ERROR will flash on the LCD of the wire
controller and the malfunction code will also be displayed. When there are multiple malfunction at the same time,
the malfunction codes will be displayed on the wire controller one by one. The first digit of the code denotes the
system number. When there is only one system, the system number will not displayed. The last two digits denote
the detailed malfunction code. For example, the code in Fig. 8.5-11 means low pressure protection of compressor
of system 1.
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The malfunction codes definition are as follows:
Cod Malfunction Code Malfunction
E0 Pump malfunction F0 Malfunction of indoor room temp.
sensor at air intake
E1 High pressure protection of compressor F1 Malfunction of evaporator tem.
sensor
E2 Indoor frost-proof protection F2 Malfunction of condenser tem.
sensor
E3 Low pressure protection of compressor F3 Malfunction of outdoor ambient
temperature sensor
E4 Exhaust high temperature protection of
compressor
F4 Malfunction of exhaust gas
temperature sensor
E5 Overload protection of compressor F5 Malfunction of indoor room sensor
at wire controller
E6 Communication malfunction EH Malfunction of auxiliary
E8 Indoor unit fan protection EE Buttons are locked (not malfunction)
E9 Full water protection CC The unit is remotely monitored or
controlled by centralized controller
and the wire controllers function are
invalidated (not malfunction)
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1
9.Disassembly Procedures
9.1 Disassembly procedures for FG(R)2.6/N, FG(R)3.5/N,FG(R)5/N indoor
unit
Operation procedure Fig.
1Disassemble outsidecasing plate
1) Disassemble the filter of rear return
air inlet
pull out two filters of rear return air
inlet, as shown in fig.1
2) Disassemble side plate of rear return
air inlet
Screw off the fastening screw of the
rear air return inlet, take down the side
plate of the rear air return inlet (as shown
in fig.2)
3) Disassemble cover plate of return airinlet
Screw off the fastening screw of the air
return inlet, take down cover plate of the
air return inlet (as shown in fig.3)
filter of rear return air inlet
Fig.1
Fig. 2
cover plate of return air inlet
Fig. 3
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2
Operation procedure Fig.
4) Disassemble bottom cover plate
Screw off the fastening screw of the
bottom cover plate, take down the bottomcover plate (as shown in fig.4)
2Disassemble the watertray
Screw off the fastening screw of the
water tray, then take down the water tray
(as shown in fig.5)
3 Disassemble fan and
motor1disassemble the front and rear volute
Screw off the fastening screw of the
front and rear volute, then take down the
front and rear volute (as shown in fig.6)
the bottom cover plate
Fig. 4
water tray
Fig. 5
the front and rear volute
Fig. 6
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3
Operation procedure Fig.
2disassemble centrifugal fan
Screw off the fastening screw between
the fan and motor, then take down thecentrifugal fan wheel (as shown in fig.7)
3Disassemble the motor support frame
Screw off the fastening screw of the
motor support frame, then take down the
frame (as shown in fig.8).
Loosen the connection plug of motor
wire in the electric box, and take down the
motor (as shown in fig. 9)
centrifugal fan wheel
Fig. 7
motor support frame
Fig. 8
Fig. 9
support frame for fan
Fig. 10
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4
Operation procedure Fig.
4Disassemble evaporator1
Disassemble right side plate Screw off the fastening screw of the
right side plate, then take down the
plate(as shown in fig.11)
2Disassemble left side plate
Screw off the fastening screw of the
left side plate, then take down the
plate(as shown in fig.12)
3Disassemble evaporator
Screw off the fastening screw of the
evaporator.
Take down the evaporator (as shown
in fig.13)
4Disassemble the evaporator support
frame
Screw off the fastening screw of the
evaporator support frame, then take
down the frame (as shown in fig.14).
Fig. 11
Fig. 12
Fig. 13
Fig. 14
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5
9.2 Disassembly procedures for FG(R)2.6/N, FG(R)3.5/N,FG(R)5/N outdoor
unit
Operation procedure Fig.
1Disassemble outside casingplate
1) Disassemble the front side plate
Screw off the fastening screw of the front
side plate
Push the front side plate downwards.(there
is hook behind the plate) as shown in fig. 2
2) Disassemble the top cover plate
Screw off the fastening screw of the top
cover plate, then take down the plate. (asshown in fig.3)
3Disassemble the protection grill
Screw off the fastening screw of the
protection grill, then take down the protection
grill. (as shown in fig.3)
Fig. 1
Fig. 2
Fig. 3
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6
Operation procedure Fig.
4
Disassemble the outer shellScrew off the fastening screw of the outer
shell, then take down the shell. (as shown in
fig.4)
(2) Disassemble hte axial flow
fan
Screw off the spheric nuts fastening the
axial flow fan, then take down the external
gear locking ring. (as shown in fig.5)
Take down the axial flow fan. (as shown in
fig. 5)
(3) Disassemble the motor of
fan
Screw off the fastening screw of the motor
support frame, then take down the frame. (as
shown in fig.6)
Fig. 4
Fig. 5
Fig. 6
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7
Operation procedure Fig.
Screw off the fastening screw between
the motor and the motor support frame,
then take down the motor backwards (asshown in fig.7)
Loosen the connection plug of the
motor wire and lead the motor wire
through the wire hole.
(4) Disassemble the four-way
vale and capillary
1. Disassemble the four-way valve
Screw off the fastening screw on
four-way valve for fastening the magnet
coil.
Take down the magnet coil.
Unsolder welding spot between the
four-way valve and another pipes.
Take down the four-way valve. (as
shown in fig. 8)
Notes: please be careful when you the
capillary and other pipes, make sure fire
cant touch another parts, meanwhile, the
valve should be packaged by wet cloth for
fear the valve is hurt by high temperature.
2.Disassemble the capillary
Unsolder the two welding spot among
the capillary and other pipes.
Take down the capillary (as shown in
fig. 8).
Fig. 7
four-way valve capillary
Fig. 8
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1
9.3 Disassembly procedures for FG(R)7/N-E indoor unit
Operation procedure Fig.
1 Disassemble outsidecasing plate
1) Disassemble side plate of supply-air
outlet
screw off the fastening bolts on the
supply-air outlet, then take down the side
plate of supply-air outlet. (as shown in fig
1)
2) Disassemble the filter of rear return
air inlet
pull out two filters of rear return air
inlet, as shown in fig.2
3) Disassemble side plate of return-airoutlet
screw off the fastening bolts on the
return-air outlet, then take down the side
plate of return-air outlet. (as shown in fig
3)
side plate of supply-air outlet
Fig. 1
filter of rear return air inlet
Fig.2
Fig.3
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2
Operation procedure Fig.
4) Disassemble cover plate of return air
inlet
Screw off the fastening screw of the airreturn inlet, take down cover plate of the
air return inlet (as shown in fig.4)
5) Disassemble bottom cover plate
Screw off the fastening screw of the
bottom cover plate, take down the bottom
cover plate (as shown in fig 5)
2Disassemble the water
tray Screw off the fastening screw of the
water tray, then take down the water tray
(as shown in fig.6)
cover plate of return air inlet
Fig.4
bottom cover plate
Fig.5
water tray
Fig.6
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3
Operation procedure Fig.
3Disassemble fan
Screw off the fastening screw of thefan. (as shown in fig.7)
Screw off the fastening screw between
fan and motor, then take down the fan. (as
shown in fig. 8)
2Disassemble the motor support frame
Screw off the fastening screw of the
motor support frame. then take down the
frame (as shown in fig. 9)
Loosen the connection plug of motor
wire in the electric box, and take down the
motor (as shown in fig. 10)
the fastening screw of the fan
Fig.7
fastening screw
Fig.8
motor support frame
Fig.9
Fig.10
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4
Operation procedure Fig.
4Disassemble evaporator1
Disassemble right side plate Screw off the fastening screw of the
right side plate, then take down the
plate(as shown in fig.11)
2Disassemble left side plate
Screw off the fastening screw of the
left side plate, then take down the
plate(as shown in fig.12)
3Disassemble the pipe clamp
Screw off the fastening screw of pipe
clamp. (as shown in fig. 12)
4Disassemble evaporator
Screw off the fastening screw of the
evaporator.
Take down the evaporator (as shown
in fig.13)
5Disassemble the evaporator support
frame
Screw off the fastening screw of the
evaporator support frame, then take
down the frame (as shown in fig.13).
Fig. 11
Fig. 12
Fig. 13
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5
9.4 Disassembly procedures for FG(R)7/N-E outdoor unit
Operation procedure Fig.
1Disassemble outside casingplate
1) Disassemble the front side plate
Screw off the fastening screw of the front
side plate
Push the front side plate downwards.(there
is hook behind the plate) as shown in fig. 2
2) Disassemble the top cover plate
Screw off the fastening screw of the top
cover plate, then take down the plate. (asshown in fig.3)
Fig. 1
Fig. 2
Fig. 3
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6
Operation procedure Fig.
3Disassemble the outer shell
Screw off the fastening screw of the outershell, then take down the shell. (as shown in
fig.4)
4Disassemble the protection grill
Screw off the fastening screw of the
protection grill, then take down the protection
grill. (as shown in fig.5 and fig. 6)
protection grill
Fig. 4
Fig. 5
Fig. 6
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7
Operation procedure Fig.
(2) Disassemble axial flow fan
Screw off the spheric nuts fastening theaxial flow fan, then take down the
external gear locking ring. (as shown in
fig.7)
Take down the axial flow fan. (as
shown in fig. 7)
(3) Disassemble the motor of
fan
Screw off the fastening screw of the
motor support frame, then take down the
frame. (as shown in fig.8)
spheric nuts
Fig.7
motor support frame
Fig. 8
Fig. 9
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8
Operation procedure Fig.
Screw off the fastening screw between themotor and the motor support frame, then
take down the motor backwards (as shown
in fig.10)
Loosen the connection plug of the motor
wire and lead the motor wire through the
wire hole.
(4) Disassemble the four-way
vale and capillary
1. Disassemble the four-way valve
Screw off the fastening screw on four-way
valve for fastening the magnet coil.
Take down the magnet coil.
Unsolder the welding spot between the
four-way valve and another pipes.
Take down the four-way valve. (as shown
in fig. 11)
Notes: please be careful when you the
capillary and other pipes, make sure
fire cant touch another parts,
meanwhile, the valve should be
packaged by wet cloth for fear the
valve is hurt by high temperature.
2.Disassemble the capillary
Unsolder the two welding spots among
the capillary and other pipes.
Take down the capillary (as shown in fig.
12).
Fig.10
Fig.11
Fig.12
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10
Operation procedure Fig.
(7) Disassemble the gas
valve and liquid valve
1. Disassemble the gas valve
screw off the 2 screw bolts that
fasten the valve.
Unsolder the two welding spots
between the valve and the gas return
pipe, then take down the gas valve. (as
shown in fig. 12)
Notes: the valve should be packaged
by wet cloth for fear the valve is hurt
by high temperature when you
unsoldering.
2. Disassemble the liquid valve
screw off the 2 screw bolts that
fasten the valve.
Unsolder the spot weld between the
valve and the gas return pipe, then
take down the liquid valve. (as
shown in fig. 13)
Notes: the valve should be packaged
by wet cloth for fear the valve
is hurt by high temperature
when you unsoldering.
Gas valve
screw bolt
Fig.15
Liquid valve
screw bolt
Fig.16
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1
9.5 Disassembly procedures for FG(R)10/N-E, FG(R)10/N-MFG(R)12/N-MFGR16/NC-M indoor unit
Operation procedure Fig.
1 Disassemble outsidecasing plate
1) Disassemble side plate of supply-air
outlet
screw off the fastening bolts on the
supply-air outlet, then take down
the side plate of supply-air outlet.
(as shown in fig 1)
2) Disassemble the filter of rear return
air inlet
pull out two filters of rear return air
inlet, as shown in fig.2
3) Disassemble side plate of return-airoutlet
screw off the fastening bolts on the
return-air outlet, then take down
the side plate of return-air outlet.
(as shown in fig 3)
Fig. 1
Fig. 2
Fig. 3
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2
Operation procedure Fig.
4) Disassemble cover plate of return air
inlet Screw off the fastening screw of the
air return inlet, take down cover plate of
the air return inlet (as shown in fig.4)
5) Disassemble bottom cover plate
Screw off the fastening screw of the
bottom cover plate, take down the bottom
cover plate (as shown in fig 5)
2Disassemble the watertray
Screw off the fastening screw of the
water tray, then take down the water tray
(as shown in fig.6)
Fig. 4
bottom cover plate
Fig. 5
water tray
Fig. 6
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3
Operation procedure Fig.
3 Disassemble fan andmotor
Screw off the fastening screw of the
fan. (as shown in fig.7)
2Disassemble the motor support frame
Screw off the fastening screw of the
motor support frame, then take down the
frame (as shown in fig. 8)
3Disassemble the wire plug of motor
Loosen the connection plug of motor
wire in the electric box, and take down the
motor (as shown in fig. 9)
Fig. 7
Fig. 8
Fig. 9
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4
Operation procedure Fig.
4) Disassemble motor wiringLoosen the connection plug of motor,
and lead the wire through the wire hole
(as shown in fig.10)
5) Disassemble the fan
Screw off the fastening screw between
fan and motor, then take down the fan.
(as shown in fig. 11)
6Disassemble the motor
Screw off the fastening screw that
fasten the motor, then take down the
motor. (as shown in fig. 12)
Fig. 10
fastening screw
Fig. 11
Fig. 12
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5
Operation procedure Fig.
4 disassemble theauxiliary electric heater
Notice: only the heat pump (cooling
capacity is up to 16kw) has auxiliary electric
heater, the other type dont need this
procedure.
Loose the connection wire of high
temperature protector. (as shown in
fig.13)
Screw off the fastening bolts for the
auxiliary electric heater clamp.(as shown
in fig. 14)
Take down the connection wire of the
auxiliary electric heater, then take down
the auxiliary electric heater.(as shown in
fig. 15)
high temperature protector
Fig. 13
Fig. 14
Fig. 15
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6
Operation procedure Fig.
5Disassemble evaporator
1Disassemble right side plate
Screw off the fastening screw of the
right side plate, then take down the
plate(as shown in fig.16)
2Disassemble the tube temperature
sensor
Pull out the tube temperature sensor of
evaporator.(as shown in fig. 17)
3Disassemble the pipe clamp
Screw off the fastening bolts of pipe
clamp.(as shown in fig. 18)
Fig. 16
tube temperature sensor
Fig. 17
pipe clamp
Fig. 18
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7
Operation procedure Fig.
4) Disassemble evaporator
Screw off the fastening screw of theevaporator.
Take down the evaporator (as shown
in fig.19)
5Disassemble the evaporator support
frame
Screw off the fastening screw of the
evaporator support frame, then take
down the frame (as shown in fig.20).
Fig. 19
Fig. 20
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10
Operation procedure Fig.
(2) Disassemble axial flow fan
Screw off the spheric nuts fastening theaxial flow fan, then take down the
external gear locking ring. (as shown
in fig.6)
Pull out the axial flow fan. (as shown in fig.
6)
Fig. 5
Fig. 6
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11
Operation procedure Fig.
(3) Disassemble the motor of
fan
Screw off the fastening screw of the
motor support frame, then take down
the frame. (as shown in fig. 7)
Screw off the fastening screw between
the motor and the motor support
frame, then take down the motor
backwards (as shown in fig.8)
Loosen the connection plug of the motor
wire and lead the motor wire through the
wire hole.
Fig. 7
Fig. 8
Fig. 9
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12
Operation procedure Fig.
(4) Disassemble the four-way
vale and capillary
1. Disassemble the four-way valve
Screw off the fastening screw on
four-way valve for fastening the magnet
coil.
Take down the magnet coil.
Unsolder the four-way valve and another
pipes.
Take down the four-way valve. (as shown
in fig. 10)
Notes: please be careful when you the
capillary and other pipes, make sure fire
cant touch another parts, meanwhile, the
valve should be packaged by wet cloth for
fear the valve is hurt by high temperature.
2.Disassemble the capillary
Unsolder the two connected spot weld
among the capillary and other pipes.
Take down the capillary (as shown in
fig. 11).
magnet coil
Fig. 10
Fig. 11
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13
Operation procedure Fig.
(5) Disassemble electric box
Screw off the fastening screw on theelectric box, then pull it up and take down
the electric box. (as shown in fig. 12)
2Disassemble environment temperature
sensor
Pull out the environment temperature
sensor in condenser, then take down the
sensor with communication line. (as shown
in fig.13 and fig. 14)
Fig. 12
environment temperature sensor
Fig. 13
Fig. 14
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14
Operation procedure Fig.
3 Disassemble the discharge gas
temperature sensor
Pull out the temperature sensor on thedischarge pipe, then take down the sensor
with communication line. (as shown in
fig.15)
4Disassemble high pressure switch
Pull out the high pressure switch on the
discharge pipe, then take down the switch
with communication line. (as shown in
fig.16)
5Disassemble low pressure switch
Pull out the low pressure switch on the
suction pipe, then take down the switch
with communication line. (as shown in
fig.17)
6) Disassemble the defrost temperature
sensor
Pull out the temperature sensor on the
condenser, then take down the sensor with
communication line. (as shown in fig.18)
discharge gas temperature sensor
Fig. 15
high pressure switch
Fig. 16
Fig. 17
defrost temperature sensor
Fig. 18
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15
Operation procedure Fig.
(6) Disassemble compressor and
the gas-liquid separator
1 Disassemble compressor
Loosen the connection wire on the blinding
post of compressor. (as shown in fig. 19)
Loosen the fastening elastic spring and
connection wire between the compressor and
auxiliary electrical heater. (as shown in fig.
20)
Unsolder the suction pipe and discharge pipe
of compressor. (as shown in fig. 21)
Screw off the fastening nut on the
compressor and take down the compressor.
Fig. 19
fastening elastic spring
Fig. 20
Fig. 21
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16
Operation procedure Fig.
2 Disassemble the gas-liquid separator
Screw off the fastening nut on the
gas-liquid separator and take down theseparator.(as shown in fig. 22)
(7) Disassemble the gas valve
and liquid valve
1. Disassemble the gas valve
screw off the 2 screw bolts that fasten
the valve.
Unsolder the spot weld between the
valve and the gas return pipe, then
take down the gas valve. (as shown in
fig. 23)
Notes: the valve should be packaged by
wet cloth for fear the valve is hurt
by high temperature when you
unsoldering.
2. Disassemble the liquid valve
screw off the 2 screw bolts that fasten
the valve.
Unsolder the spot weld between the
valve and the gas return pipe, then
take down the liquid valve. (as shown
in fig. 24)
Notes: the valve should be packaged by
wet cloth for fear the valve is hurt
by high temperature when you
unsoldering.
fastening nut
Fig. 22
Gas valve
screw bolt
Fig. 23
Liquid valve
screw bolt
Fig. 24
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10.Explosive view and parts detailed list
10.1 Explosive view and parts detailed list for FG(R)2.6/N FG(R)3.5/N10.1.1 Explosive view and parts detailed list for FG(R)2.6/N(I) FG(R)3.5/N(I)
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FG(R)2.6/N(I) FG(R)3.5/N(I)No Description
Qty Part Code Qty Part Code
1 Top Cover 1 01259051 1 01259051
2 Evaporator Parts 1 01039051 1 01039062
3 Liquid Inlet Pipe 1 032390521 1 036324561
4 Collecting Gas Pipe 1 03638704 1 03639090
5 Left Side Plate 1 01309051 1 01309051
6 Left Support of Evaporator 1 01079055 1 01079055
7 Seal of Connection Pipe1 1 01499051 1 01499051
8 Seal of Connection Pipe 1 01499054 1 01499054
9 Electric Box 1 01408627 1 01408627
10 Room Temp Sensor 1 390000451 1 390000451
11 Tube Temp Sensor 1 3900018717 1 3900018717
12 Main PCB2 1Heat pump:30224405
Cooling only:302244031
Heat pump: 30224405
Cooling only: 30224403
13 Transformer SC39 1 43110209 1 43110209
14 Remote Controller ZY512A 1 305050031 1 305050031
15 Capacitor 1 33010020 1 33010027
17 Terminal Board 1 420111562 1 420111562
18 Isolation plate C 1 70410523 1 70410523
19 Wire Clamp 3 71010102 2 71010102
20 Terminal Board 2-8 2 42011103 2 42011103
21 Hook 2 02112446 2 02112446
22 Right Side Plate 1 01309055 1 01309055
23 Right Support Frame of Evaporator 1 01079056 1 01079056
24 Hook 2 02112446 2 02112446
25 Water Tray 1 01279051 1 01279051
26 Fan Fixed Plate 1 01339095 1 01339062
27 Motor Support Frame 2 01709058 2 01709058
28 Fan parts 1 150024011 1 150024011
29 Motor FG20C 1 15019053 1 15019522
30 Fan parts 1 150024011 1 150024011
31 Bottom Cover 1 01259086 1 01259055
32 Bottom Cover parts 1 01259054 1 01259054
33 Cover of Air-return inlet 1 01259056 1 01259056
34 Side Plate of Air-return inlet 1 01499055 1 01499055
35 Display Panel 1Heat pump: 30294403
Cooling only: 302944021
Heat pump:30294403
Cooling only:30294402
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10.1.2 Explosive view and parts detailed list for FG(R)2.6/N(O), FG(R)3.5/N(O)
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FG(R)2.6/N(O) FG(R)3.5/N(O)NO Description
Qty Part Code Qty Part Code
1 Panel Grill 1 22413431 1 22413431
2 Front side plate 1 01533012 1 01533012
3 Axial Flow Fan 1 10333413 1 103334134 Motor FW30K 1 15013067 1 15013066
5 Motor Support Frame 1 01703069 1 01703069
6 Condenser Parts 1 011032023 1 011032002
7 Top Cover 1 01253443 1 01253443
8 Protection Grill 1 01473030 1 01473030
9Capacitor CBB65
22.5uF/450V(VDE/TUV)1 33000002 1 33000017
10 Electric Box 1 01409070 1 01409070
11 Isolation Plate D 1 70410525 1 70410525
12 4-way Valve 1430004021
Only for FGR2.6/N(O)1
430004021
Only for FGR3.5/N(O)
13 Wire Clamp 1 71010103 1 71010103
14 Discharge Pipe 1Heat pump: 03613129
Cooling only: 036131281
Heat pump:03613105
Cooling only:03619081
15 Right Side Plate 1 01302004 1 01302004
16 Handle 1 26233433 1 26233433
17 Valve (R407C) # 1 07100134 1 07100149
18 Valve Support Frame 1 01713041 1 01713041
19 Compressor and parts 1 00100355 1 00100352
20 Isolation plate 1 01239052 1 01239052
21 Bottom plate 1 01213429 1 01203008
22 Temp sensor 13900012125
Only for FGR2.6/N(O)1
3900012125
Only for FGR3.5/N(O)
23 Main PCB1 1Heat pump:30224404
Cooling only: 302244021
Heat pump:30224404
Cooling only:30224402
24 Transformer SC39 1 43110209 1 43110209
25 Terminal Board (2 bit) 1 420111531 1 420111531
26 AC Contactor CJX9B-25S/D 1 44010245 1 44010245
27 Terminal Board 2-8 142011103
Only for FGR2.6/N(O)1
42011103
Only for FGR3.5/N(O)
28 4-way Valve parts 1430004002
Only for FGR2.6/N(O)1
430004002
Only for FGR3.5/N(O)
29 Capacitor 1 33010026 1 33010027
30 Valve (R407C) # 1 07100135 1 07100133
31 Overload Protector for compressor 1 Fitting parts for compressor 1 Fitting parts for compressor
32 Compressor Gasket 3 Fitting parts for compressor 3 Fitting parts for compressor
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FG(R)5/N(I)No. Description
Qty Part Code
1 Top Cover 1 01259064
2 Evaporator Parts 1 01038623
3 Liquid Inlet Pipe 1 032391094 Collecting Gas Pipe 1 03639072
5 Left Side Plate 1 01308668
6 Left Support Frame of Evaporator 1 01078629
7 Seal of Connection Pipe1 1 01498640
8 Seal of Connection Pipe2 1 01498644
9 Electric Box 1 01409204
10 Tube Temp Sensor 1 3900018717
11 Room Tube Temp Sensor 1 390000451
12 Main PCB2 1 Heat pump: 30224405Cooling only30224403
13 Transformer SC39 1 43110209
15Capacitor CBB61 4F/450V
133010011
17 Terminal Board (5 bits) 1 420111562
18 Isolation plate C 1 70410523
19 Wire Clamp 2 71010102
20 Terminal Board 2-8 1 42011103
21 Hook 2 0211246622 Right Side Plate 1 01308670
23 Right Support Frame of Evaporator 1 01078625
24 Hook 2 02112466
25 Water Tray 1 01278633
26 Fan Fixed Plate 1 01339058
27 Remote Controller ZY512A 1 305050031
28 Motor Parts 1 15002401
29 Motor FG70B 1 15018322
30 Motor Parts 1 15002401
31 Display Panel 1Heat pump: 30294403
Cooling only: 30294402
32 Bottom Cover 1 01258649
33 Cover of Air-return inlet 1 01258650
34 Side Plate of Air-return inlet 1 01499061
35 Air-return inlet parts 1 01498641
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10.2.2 Explosive view and parts detailed list for FG(R)5/N(O)
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FG(R)7/N-EINo Description
Qty Part Code
1 Top Cover 1 01258651
2 Evaporator Parts 1 010086281
3 Left Side Plate 1 01308676
4 Left Support Frame of Evaporator 101078603
5 Seal of Connection Pipe1 1 01308680
6 Seal of Connection Pipe 2 1 01498610
7 Electric Box 1 01408628
8 Room Temperature Sensor 1 390000451
9 Tube Temperature Sensor 1 3900018717
10 Main PCB2 Z4415_M 1 30224403
11 Transformer SC39 1 43110209
12 Capacitor CBB61 8F/450V 1 33010014
13 Terminal Board 2-8 2 42011103
14 Terminal Board (3 bits) 1 420111591
15 Isolation Plate C 1 70410523
16 Wire Clamp 2 71010102
17 Right Side Plate 1 01308677
18 Right Support Frame of Evaporator 101078604
19 Water Tray 1 01278612
20 Fan Fixed Plate 1 01338631
21 Fan (right)SYP-200/190J-1 1 15018604
22 Motor FG150B 1 15018612
23 Fan (left)SYP-200/190J-1 115018603
24 Bottom Cover 1 012586121
25 Cover of Air-return inlet 1 01258614
26 Side Plate of Air-return inlet 1 01499074
27 Side Plate of Air-supply outlet 1 0149861228 Hook 4 02118504
29 Remote controller ZY512A 1 305050031
30 Display Panel Z44351_M 1Heat pump: 30294403
Cooling only:30294402
31 Capillary 3 81020149
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10.3.2 Explosive view and parts detailed list for FG(R)7/N-E(O)
10 9 8
1
3
2
4
1711
7
20
19
18
13
12
5
6
14
15
16
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FG(R)7/N-E(O)No Description
Qty Part Code
1 Panel Grill 1 22265251
2 Front side plate 1 01435254
3 Protection Grill 1 01475252
4 Top Cover 1 01255262
5 Back Side Plate 1 01305261
6 Handle 2 26235253
7 Valve Support Frame 1 01715001
8 Bottom cover 1 01203066
9 Front Side Plate 1 01305247
11 Axial Flow Fan 1 10335253
12 Condenser Parts 1Heat pump: 01109063
Cooling only: 01103468
13 Motor Support Frame 1 01705252
14 Motor FW60T 1 15013703
15 Isolation Plate 1 01235253
16 4-way Valve 1430004031
Only for FGR7/N-E(O)
17 Compressor C-RN220H5B 1 00100063
18 Gas Valve 1 07105007
19 Liquid Valve 1 07105002
20 Temp Sensor 13900012125
Only for FGR7/N-E(O)
21 Electric Box 1 01409092
22 Terminal Board (4 bits) 1 42011201
23 Transformer SC39 1 43110209
24 Terminal Board 2-8 1 42011103
25 Main PCB1 Z4435_M 1 30224404
26 Capacitor CBB61 3.0F/450V 1 33010027
27 AC Contactor CJX9B-25S/01 1 44010222
28 Capacitor CBB65 40F/440V 1 33000022
29 Capacitor Clamp 1 02143401
30 Isolation plate D 2 70410523
31 Wire Clamp 2 71010102
32 4-way Valve1
430004002
Only for FGR7/N-E(O)
33 Compressor Gasket 527-0116-00 4 Fitting parts for compressor
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10.4 Explosive view and parts detailed list for FG(R)10/N-EFG(R)10/N-MFG(R)12/N-M10.4.1 Explosive view and parts detailed list for FG(R)10/N-EIFG(R)10/N-MIFG(R)12/N-MI
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FG(R)10/N-EI FG(R)10/N-MI FG(R)12/N-MINo Description
Qty Part Code Qty Part Code Qty Part Code
1 Top Cover 1 01258606 1 01258606 1 01258606
2 Evaporator Parts 1 01009069 1 01009060 1 010090603 Left Side Plate 1 01308676 1 01308676 1 01308676
4 Left Support Frame of Evaporator 1 01078603 1 01078603 1 01078603
5 Seal of Connection Pipe 1 1 01308672 1 01308672 1 01308672
6 Seal of Connection Pipe 2 1 01498601 1 01498601 1 01498601
7 Electric Box 1 01408628 1 01408628 1 01408628
8 Room Temperature Sensor 1 3900012123 1 3900012123 1 3900012123
9 Tube Temperature Sensor 1 3900018717 1 3900018717 1 3900018717
10 Main PCB2 Z4435_M 1
Heat pump:
30224405
Cooling only:
30224403
1
Heat pump:
30224405
Cooling only:
30224403
1
Heat pump:
30224405
Cooling only:
30224403
11 Transformer SC39 1 43110209 1 43110209 1 43110209
12 Capacitor CBB61 8F/450V 1 33010014 1 33010014 1 33010014
13 Capacitor CBB61 5F/450V(TUV/VDE) 1 33010064 1 33010064 1 33010064
14 Terminal Board 2-8 2 42011103 2 42011103 2 42011103
15 Terminal Board (3 bits) 1 420111591 1 420111591 1 420111591
16 Isolation Plate C 1 70410523 1 70410523 1 70410523
17 Wire Clamp 2 71010102 2 71010102 2 71010102
18 Right Side Plate 1 01308677 1 01308677 1 01308677
19 Left Support Frame of Evaporator 1 01078604 1 01078604 1 01078604
20 Water Tray 1 01278620 1 01278620 1 01278620
21 Fan Fixed Plate 1 01338630 1 01338630 1 01338630
22 Fan (right)SYP-200/190J 1 15019058 1 15019058 1 15019058
23 Motor FG150B 1 15018612 1 15018612 1 15018612
24 Fan (left)SYP-200/190J 2 15019059 2 15019059 2 15019059
25 Motor FG75B 1 15018613 1 15018613 1 15018613
26 Bottom Cover 1 01258604 1 01258604 1 01258604
27 Cover of Air-return inlet 1 01258602 1 01258602 1 01258602
28 Side Plate of Air-return inlet 1 01499066 1 01499066 1 01499066
29 Side Plate of Air-supply outlet 1 01498607 1 01498607 1 01498607
30 Hook 4 02118504 4 02118504 4 02118504
31 Remote Controller ZY512A 1 305050031 1 305050031 1 305050031
32 Display Panel Z44351_M 1
Heat pump:
30294403
Cooling only:
30294402
1
Heat pump:
30294403
Cooling only:
30294402
1
Heat pump:
30294403
Cooling only:
30294402
33 Capillary 5 81020069 5 81020069 5 81020069
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10.4.2 Explosive view and parts detailed list for FG(R)10/N-EOFG(R)10/N-MOFG(R)12/N-M(O)
FG(R)10/N-EO FG(R)10/N-MO FG(R)12/N-MONo. Description
Qty Part Code Qty Part Code Qty Part Code
1 Panel Grill 2 22265251 2 22265251 2 22265251
2 Front side plate 1 01435433 1 01435433 1 01435433
3 Protection Grill 1 01475432 1 01475432 1 01475432
4 Top Cover 1 01255262 1 01255262 1 01255262
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10.5 Explosive view and parts detailed list for FGR16/NC-M
10.5.1 Explosive view and parts detailed list for FGR16/NC-M(I)
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FGR16/NC-M(O)No Description
Qty Part Code
1 Top Cover 1 01259074
2 Evaporator Parts 1 01039057
3 Gas Piping Parts 1 036390794 Left Side Plate 1 01309060
5 Left Support Frame of Evaporator 1 01079067
6 Seal of Connection Pipe 1 1 01308672
7 Seal of Connection Pipe 2 1 01498601
8 Electric Box 1 01418601
9 Room Temp Sensor 1 3900018717
10 Tube Temp Sensor 1 3900012123
11 Main PCB2 Z4435_M 1 30224405
12 Display Panel 1 Z443513 1 30294407
13 Transformer SC39 1 43110209
14 Capacitor CBB61 (1A) 10F/450V AC 1 33010056
15 Capacitor CBB61 5F/450V(TUV/VDE) 1 33010064
16 AC Contactor 1 44010199
17 Terminal Board (5 bits) 1 420111563
18 Isolation Plate F 1 70410524
19 Wire Clamp 3 71010102
20 Terminal Board 2-8 2 42011103
21 Hook 2 02118504
22 Right Side Plate 1 01309063
23 Left Support Frame of Evaporator 1 01079068
24 Hook 2 02118504
25 Water Tray 1 01279065
26 Fan Fixed Plate 1 01339065
27 Fan Support Frame 2 01709060
28 Fan (right) 1 15018604
29 Motor FG180A 1 15019056
30 Fan (left) 2 15018603
31 Motor FG80A 1 15019057
32 Bottom Cover 1 01259071
33 Cover of Air-return inlet 1 01259073
34 Side Plate of Air-return inlet 1 01499068
35 Side Plate of Air-supply outlet 1 01499070
36 Electric Heater 3 32018614
37 Electric Heater Support Frame 1 01228635
38 Electric Heater Fixer 3 01222401
39 Signal Control wire 1 401101403
40 Capillary Parts (Cooling) 1 03009063
41 Capillary Parts (Heating) 1 030090632
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10.5.2 Explosive view and parts detailed list for FGR16/NC-M(O)
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FGR16/NC-M(O)No Description
Qty Part Code
1 Support leg 2 01795251
2 Bottom cover 1 01205472
3 Valve Support Frame 1 017152564 Compressor 1 00100176
5 Compressor Gasket 4 76710219
6 Condenser Parts 1 01109064
7 Gas-Liquid Separator 1 07225479
8 Motor Support Frame 1 01705472
9 Motor 2 15015451
10 Axial Flow Fan 2 10335253
11 4-way Valve 1 430004051
12 4-way Valve Parts 1 430004005
13 Electrical Box 1 01419056
14 Isolation Plate 1 01235473
15 Liquid Valve 1 07103457
16 Gas Valve 1 07103456
17 Back Side Plate 1 01305434
18 Protection Grill 1 01475431
19 Protection Grill Gasket 1 76315251
20 Front Side Plate 1 01305431
21 Front Plate 1 01435432
22 Front Grill 2 22265251
23 Top Cover 1 01255472
24 Handle 3 26235252
25 Overload Protector for compressor 1 46020103
26 Capacitor of Fan 2 33010013
27 Terminal Board (4 bits) 1 42011044
28 Terminal Board 2-8 2 42011103
29 AC Contactor 1 44010213
30 Transformer SC39 1 43110209
31 Phase Reverse Protector 1 46020052
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11. Maintenance
11.1 Clean the air filter1) Take down the air filter before clean it, or else it will cause malfunction.2) If there is too much dust in air conditioner operation environment, you should
clean the filter more frequently.(usually every two weeks one time)
Notice: Before you clean the filter, you should pay attention to some item as
follows:
a) Cut off all the power supply before you contact the wiring device.
b) Turn off the air conditioner and cut off the power supply before you clean
the air conditioner, or else you maybe get an electric shock or be hurt.
c) Dont clean the air conditioner with water, or else you maybe get an electric
shock.
d) Take care when you clean the air conditioner, and please use steady platform.
11.2 Maintenance before the operation season1) Check whether the inlet and outlet of the indoor and that of outdoor units are blocked
2) Check whether the earth lead is reliable.
3) Check whether the connection of wire is appropriate.
4) Check whether there is word appear on the display panel of wired controller when the power is on.
Notice: Once there is any abnormity of the units, please contact the service people after sale to supply help.
11.3 Maintenance after usage season1) When it is fine, operate the unit in the air supply mode for half a day to dry the inside of the unit
2) If the air conditioner is not used for a long time, shut down the power to save energy. After the power is off,
texts on the wired controller display panel will disappear.
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12. Instruction of Unit Installation
12.1 The installation accessory list, as shown in table 12.1-1
Table 12.1-1
Name Qty. Remark
Specification for usage and
installation1
gas pipe insulation material 1 use for connecting to gas pipe of indoor unit
liquid pipe insulation material 1use for connecting to liquid pipe of indoor
unitcondensate water drainage pipe
insulaiton material2
use for packing the condensate water pipe and
latex plug
nut with gasket M8 8 use for fastening the hook
nut with gasket M10 4
nut and spring gasket 44 sets, for hanging on the indoor unit
hook 4 use for hanging on the indoor unit
electric coil 4 or 8 nos. 2HP type:4nos.;others:8 nos.
wired controller 1
remote controller 1
battery 2
corrugated pipe 0,2 or 4 piece2HP type:0 piece;2.53HP type:2 piece4
5HP:4 piece
connection wire 23 piece 45HP type:3 piece; others:2 piece
12.2 Dimension requirement of the installation space of indoor unit, as shown in fig. 12.2-1
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(a) indoor unit
boutdoor unit
Fig. 12.2-1
12.3 Installation of indoor unit
12.3.1 Selection of installation site
1) Ensure the top hanging piece has strong strength to withstand the weight of unit.2) It is convenient for draining the condensate water.
3) There is no obstacle blocking the air intake and exhaust outtake, so as to ensure appropriate
air circulation.
4) The installation spaces required by the above drawing must be ensured, so as to provide
enough space for the service and maintenance.
5) The installation site must be far away from heat source, leakage of inflammable gas or
smoke.
6) The indoor unit is of ceiling mount(indoor unit is hidden inside the ceiling).
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7) The indoor and outdoor units, the power cable and the connecting electrical wiring must be
at least 1 meter from any TV set or radio. This is to avoid image interference or noise of the
TV set or radio. (Even if the distance is 1 meter, noise can also exist if there is strong
electric wave.)
12.3.2 Installation of indoor unit
1) Installation of expansion bolt
Drill 4 hole (diameter is about 10mm) on the ceiling, the distance between every hole is refer
to the fig. 3-1. then insert a M10 expansion bolt into the hole, and drive a nail into the bolt,
as shown in fig. 12.3-1
Fig.12.3-1 Fig.12.3-2
2) Install the hanger onto the indoor unit, as shown in fig. 12.3-2
3) Install the indoor unit at the ceiling, as shown in fig. 12.3-3
48mm
12.3-3
4) Level check of the indoor unitAfter the indoor unit is installed, it is required to be check the level of the whole unit, so that
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the whole unit is placed horizontally, as shown in fig.
12.3-4.
Fig. 12.3-4
12.3.3 Installation of duct
1) Installation of rectangular duct, as shown in fig.12.3-5
2
4
3
1
5 7
63
No. Name No. Name
1 Hanger 5 Filter
2 Air return duct 6 Main air supply duct3 Canvas air duct 7 Air outtake
4 Air intake
Fig.12.3-5
2) Installation of circular duct, as shown in fig.12.3-6
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4
3
2
5
1
876 9
No. Name No. Name
1 Hanger 6 Transition duct
2 Air return duct 7 Air supply duct
3 Canvas air duct 8 Diffuser
4 Air return grill 9 Diffuser joint
5 Air intake
Fig.12.3-6
Notice: The above two fig are only show the installation of rear air back type, but in fact, you also
can adopt nether air back type according to actual demand, and the installation of two type are
similar; among all the air outtake, one outtake must be opened; and you also can adopt the
circular air duct type in which the air will be supplied by circular flexible conduit to rooms;
and the air-supply duct and air-return duct are all need be covered by insulation material.
12.3.4 Installation of fresh air duct( only for the high static pressure type whose cooling
capacity is up to 6000W).
1) Before connect the fresh air duct, you should cut off the baffle plate for fresh air first, as shown
in fig.12.3-7a. if you dont use the fresh air duct, please seal the gap at fresh air baffle plate
with sponge.
2) Install circular flange for connecting the fresh air duct, as shown in fig.12.3-7(b).
3) The duct and circular flange are all need be sealed and insulated well.
4) The fresh air is the clean air that have been filtered by air filter.
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(a) (b)
Fig.12.3-7
12.3.5 Installation of air-return duct1) When the unit leave factory, the rectangular flange is acquiescently installed at the backside of
unit and the air-return cover is installed at the bottom of unit, as shown in fig.12.3-8.
Fig. 12.3-8
2) If you adopt nether air back type, you only need change the position of rectangular flange and
air-return plate.
3) Connect one end of the air-return duct to the air-return intake of indoor unit with rivetthe other
end is connected to air-return grill. For adjusting the height freely, you can make a length of
canvas duct which is strengthened by 8# iron wire and shaped rugous duct. You can adopt
optimum installation mode according to the situation of building and maintenance, as shown in
fig.12.3-9.
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installation is ad
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