Page 1
SERVICE MANUAL
EN
MULTI VARIABLE SERIES
MV-E36BI, MV-E42BI
Page 2
“Originalinstructions”
IMPO
RTANT N
Read this manual ca
or operating your new air conditioning
unit. Make sure to save this manual for
futu
re r
efe
ence.
r
OTE:
r
efully befo
r
e installing
Page 3
Service Manual
Table of Contents
Part
1. Summary
2. Specications
: Technical Information
Ⅰ
......................................................................................................................1
..........................................................................................................2
3. Outline Dimension Diagram
4. Refrigerant System Diagram
5. Electrical Part
5.1 Wiring Diagram ......................................................................................................................8
5.2 PCB Printed Diagram ..........................................................................................................12
6. Function and Control
Part
: Installation and Maintenance
Ⅱ
...........................................................................................................8
......................................................................................13
7. Notes for Installation and Maintenance
8. Installation Manual
............................................................................................19
.......................................................................1
........................................................................6
......................................................................7
.................................................15
..........................................15
8.1 Preparation before Installation.............................................................................................20
8.2 Installation Instruction ..........................................................................................................22
9. Troubleshooting
9.1 Malfunction Indicator ...........................................................................................................28
9.2 Malfunction Checking and Elimination.................................................................................29
9.3 Maintenance Method for Normal Malfunction
10. Exploded View and Parts List
11. Removal Procedure
Appendix:
Appendix 1: Reference Sheet of Celsius and Fahrenheit .........................................................54
Appendix 2: Conguration of Connection Pipe ..........................................................................54
Appendix 3: Pipe Expanding Method ........................................................................................55
Appendix 4: List of Resistance for Temperature Sensor ...........................................................56
........................................................................................................................54
..................................................................................................28
......................................................................41
..............................................................43
.......................................................................................47
Page 4
Service Manual
Part
Ⅰ
: Technical Information
1. Summary
Outdoor Unit
MV-E36BI
MV-E42BI
1
Page 5
Service Manual
2. Specications
Model MV-E36BI MV-E42BI
Product Code CN860W0311 CN860W0321
Power
supply
Cooling capacity(max~min) W 10500(2600~12000) 12000(2600~12000)
Heating capacity(max~min) W 12000(2600~13500) 12000(2600~14500)
Cooling Power Input W 3100 3450
Heating Power Input W 3200 3500
Cooling Current Input A 14 16
Heating Current Input A 13 15
Rated Power Input W 4000 4000
Rated Current A 20 20
AEER W/W / /
ACOP W/W / /
Outdoor
Unit
Rated Voltage V~ 220-240 220-240
Rated Frequency Hz 50 50
Phases 1 1
Compressor Trademark
ZHUHAI LANDA
COMPRESSOR CO.,LTD
ZHUHAI LANDA
COMPRESSOR CO.,LTD
Compressor Model QXFS-D32zX090D QXFS-D32zX090D
Compressor Refrigerant Oil Type FW68DA FW68DA
Compressor Type Inverter Rotary Inverter Rotary
L.R.A A / /
Compressor Rated Load Amp (RLA) A 17.8 17.8
Compressor Power Input W 3750 3750
Compressor Thermal Protector
Throttling Method Electron expansion valve Electron expansion valve
Cooling Operation Ambient Temperature Range
Heating Operation Ambient Temperature Range
1NT11L-6233/HPC115/95U1/
KSD115
O
C -15~43 -15~43
O
C -20~24 -20~24
℃
1NT11L-6233/HPC115/95U1/
KSD115
Condenser Material Aluminum Fin-copper Tube Aluminum Fin-copper Tube
Condenser Pipe Diameter mm Φ7.94 Φ7.94
Rows-Fin Gap(mm) mm 2-1.4 2-1.4
Coil length (l) X height (H) X coil width (L) mm 1056X286X776 1056X286X776
Fan Motor Speed (rpm) (H/M/L) rpm 820 820
Output of Fan Motor W 170 170
Fan Motor RLA A / /
Fan Motor Capacitor μF / /
Air Flow Volume of Outdoor Unit m
3
/h 5500 5500
Fan Type-Piece Axial-ow Axial-ow
Fan Diameter mm Φ570 Φ570
Defrosting Method Automatic Defrosting Automatic Defrosting
Climate Type T1 T1
Isolation I I
Moisture Protection IPX4 IPX4
Permissible Excessive Operating Pressure for the
Discharge Side
Permissible Excessive Operating Pressure for the
Suction Side
MPa 4.3 4.3
MPa 2.5 2.5
Dimension (WXHXD) mm 1087X1103X440 1087X1103X440
Dimension of Package (LXWXH) mm 1155X480X1115 1155X480X1115
Dimension of Package(LXWXH) mm 1158X483X1130 1158X483X1130
Net Weight kg 90 90
Gross Weight kg 98 98
efrigerant Charge R32 R32
Refrigerant Charge kg 2.75 2.75
℃
2
Page 6
Service Manual
Outdoor
Unit
Cross-sectional Area of Power Cable Conductor mm
2
4.0 4.0
Recommended Power Cable(Core) N 3 3
Connection Pipe Connection Method - Flare Connection Flare Connection
Not Additional Gas Connection Pipe Length m 40 40
Connection Pipe Gas Additional Charge g/m 20 20
Outer Diameter of Liquid Pipe
(Metric)1
Outer Diameter of Gas Pipe
(Metric)1
Outer Diameter of Liquid Pipe
(Metric)2
Outer Diameter of Gas Pipe
(Metric)2
Outer Diameter of Liquid Pipe
(Metric)3
Outer Diameter of Gas Pipe
(Metric)3
Outer Diameter of Liquid Pipe
(Metric)4
Outer Diameter of Gas Pipe
(Metric)4
Outer Diameter of Liquid Pipe
(Metric)5
Outer Diameter of Gas Pipe
(Metric)5
Connection Pipe Max. Height Distance(indoor and
indoor)
Max. equivalent connection pipe length(outdoor to last
indoor)
mm Φ6 Φ6
mm Φ9.52 Φ9.52
Φ6 Φ6
Φ9.52 Φ9.52
Φ6 Φ6
Φ9.52 Φ9.52
Φ6 Φ6
Φ9.52 Φ9.52
/ Φ6
/ Φ9.52
m 7.5 7.5
m 25 25
Connection Pipe Max. Length Distance(total lenght) m 75 75
The above data is subject to change without notice. Please refer to the nameplate of the unit.
3
Page 7
Service Manual
3. Outline Dimension Diagram
631
1016
1106
361
1098
401
440
Unit:mm
6
Page 8
Service Manual
4. Refrigerant System Diagram
M
Heat Exchanger
Outdoor Unit
Electronic Expansion Valve
Filter
Stop Valve
Indoor Unit
Filter
Heat Exchanger
Heat Exchanger
Compressor
Gas/Liqiud Separator
Heat Exchanger
Heat Exchanger
Heat Exchanger
Four-way Valve
Silencer
High Pressure Swicth
Heating
Cooling
Schematic Diagram of Free Match Series Inverter Heat Pump System
7
Page 9
Service Manual
5. Electrical Part
5.1 Wiring Diagram
●Instruction
Symbol Symbol Color Symbol Symbol Color Symbol Name
WH White GN GREEN COMP Compressor
YE Yellow BN Brown Grouding wire
RD Red BU Blue
YEGN Yellow/Green BK Black
VT Violet OG Orange
● Outdoor Uni
MV-E36BI
32:(5
/
1
7(50,1$/
%1%.
%8
<(*1
3(
7(50,1$/%/2&.
%8
%.
%1
<(*1
,1'22581,7$
3(
7(50,1$/%/2&.
%8
%.
%1
<(*1
,1'22581,7%
3(
7(50,1$/%/2&.
%8
%.
%1
<(*1
,1'22581,7&
3(
7(50,1$/%/2&.
%8
%.
%1
<(*1
,1'22581,7'
3(
%/2&.
/
1
;7
1
;7$
1
;7%
1
;7&
1
;7'
0$*1(7,&
5,1*
%8 %1
/
/
/
/
%8 %1
%1
%8
%1
%8
%1
%8
0$*1(7,&
5,1*
/
/
/
/
5'
%.
<(
:+
(/(&7521,&
(;3$16,21
9$/9($
(.9$ .9%( (.9& .9'(
(/(&7521,&
(;3$16,21
9$/9(%
(/(&7521,&
(;3$16,21
9$/9(&
(/(&7521,&
(;3$16,21
9$/9('
<(*1
$&/
1
+33/33
(
3(
/2:35(6685(
3
/3
6:,7&+
97
<9
6$7
/
/
/
0$*1(7,&
5,1*
/
/
/
/
0$*1(7,&
5,1*
%8
<(
5'
:$<9$/9(
29(5/2$'3527(&725
&203
8
&203
9
3(
:
/$
5($&725$
/%
5($&725%
&2035(6625
%$1'+($7(5
(+
<(*1
3(
:$<
&208
%1
3
*1'
%8
*1'
3
29&&203
/;
/;
/;
/;
97
5'
5'
;
%8
8
<(
9
5'
:
:+
2*
:+
2*
5'
+($7
5'
8
57$
(;+$867
7(03
6(1625
:+ %. *1 %8
&1
.
.
57%
28778%(
7(03
6(1625
.
57&
.
57'
2875220
7(03
6(1625
.
57$
&1
.
57%
57&
/,48,'3,3(
7(03
6(1625
.
57'
3(
2)$1
(9'(9&(9%(9$
57$
.
57% 57&
*$63,3(
7(03
6(1625
.
$30DLQ%RDUG
.
+($7
5'
%27720
%$1'
+($7(5
&1
.
.
57'
5'
(+
0
<(*1
)$102725
1RWH0RWRUJURXQG
RQO\DSSOLHVWRWKH
LURQVKHOOPRWRU
3(
287'22581,7
60000700131601
Page 10
Service Manual
MV-E42BI
32:(5
/
1
7(50,1$/
%1%.
%8
<(*1
3(
7(50,1$/%/2&.
%8
%.
%1
<(*1
,1'22581,7$
3(
7(50,1$/%/2&.
%8
%.
%1
<(*1
,1'22581,7%
3(
7(50,1$/%/2&.
%8
%.
%1
<(*1
,1'22581,7&
3(
7(50,1$/%/2&.
%8
%.
%1
<(*1
,1'22581,7'
3(
7(50,1$/%/2&.
%8
%.
%1
<(*1
,1'22581,7(
3(
%/2&.
/
1
;7
1
;7$
1
;7%
1
;7&
1
;7'
1
;7(
%8%1
0$*1(7,&
5,1*
%8%1
%8
%8
%8 %1
0$*1(7,&
5,1*
/
%1
%8
/
/
/
/
/
/
/
$&/
1
+33/33
5'
:$<
%.
<(
:+
&208
29&&203
2*
%1
(.9(
3
*1'
%8
*1'
3
/;
/;
/;
/;
%1
%1
(/(&7521,&
(;3$16,21
9$/9($
(/(&7521,&
(;3$16,21
9$/9(%
(.9$(.9% (.9&(.9'
(/(&7521,&
(;3$16,21
9$/9(&
(/(&7521,&
(;3$16,21
9$/9('
(/(&7521,&
(;3$16,21
9$/9((
+($7
:+ 5'%8*1%.
&1
.
57$
57%
(;+$867
28778%(
7(03
7(03
6(1625
6(1625
:+ 5'%8*1%.
.
.
.
57'
57&
2875220
7(03
6(1625
57$
.
57%
(9'(9&(9%(9$
&1
.
.
57&
/,48,'3,3(
7(03
6(1625
57'
.
57(
.
(9(
57$
.
57% 57&
&1
.
*$63,3(
7(03
6(1625
$30DLQ%RDUG
2)$1
+($7
.
57'
.
5'
%27720
+($7(5
%$1'
.
57'
<(*1
(
3(
/3
6:,7&+
/2:35(6685(
3
97
<9
6$7
/
/
/
0$*1(7,&
5,1*
/
/
/
/
0$*1(7,&
5,1*
%8
<(
5'
:$<9$/9(
29(5/2$'3527(&725
&203
8
&203
9
3(
:
/$
5($&725$
/%
5($&725%
&2035(6625
%$1'+($7(5
(+
3(
0
<(*1
3(
97
5'
5'
;
%8
8
<(
9
5'
:
:+
2*
:+
2*
5'
5'
<(*1
)$102725
1RWH0RWRUJURXQG
RQO\DSSOLHVWRWKH
5'
(+
LURQVKHOOPRWRU
287'22581,7
3(
60000700132801
These circuit diagrams are subject to change without notice, please refer to the one supplied with the unit.
11
Page 11
Service Manual
5.2 PCB Printed Diagram
8
9
● Top view
7
6
10 11 12 13 14
1 T25AH 250V: Fuse
2 N: terminals of neureal wire
3 AC-L: terminals of line wire
15
16
5
4
3
12
4 PFC electrocircuit
U/V/W: terminals of
5
compressor
OVC-COMP: terminals of
6
overload protector
LPP: terminals of high
7
pressure switch
EVA-EVE: terminals of
8
EXV(electronic expansion
valve)
CN802-CN803: terminals of
9
temperature sensor
COMU: terminals of
10
communication
11 OFAN: terminals of fan
HEAT1: terminals of bottom
12
band heater
HEAT: terminals of compressor
13
band heater
4WAY: terminals of 4-way
14
valve
15 K101: Main relay
16 L4-L5: choke
● Bottom view
12
Page 12
Service Manual
6. Function and Control
1. Function Control
1) Cooling mode
a. Turning on the unit for cooling operation, and if any one of the indoor units satisfy the cooling operation condition, the system will
start for cooling operation; and the electronic expansion valve, the outdoor fan and the compressor start operation.
b. When some of the indoor units satisfy the stop-condition while some indoor units does not satisfy the stop-condition, the
compressor does not stop, the compressor adjust the frequency according to demand. For the indoor unit with stop-condition satises,
the corresponding electronic expansion valve will be closed.
c. Change Cooling mode to heating mode
When change the unit to heating mode from cooling mode, the whole system will stop rst. Then the system will restart in heating
mode after the compressor stops.
d. 4-way valve
In this mode, the 4-way valve is closed.
e. Outdoor fan control in cooling mode
The outdoor fan starts before 5s of the starting of compressor. The outdoor fan will run in high speed after starting and then it will run
in set speed.
2) Dry mode (dehumidication mode)
This mode is the same as cooling mode;
3) Heating mode
a. Turning on the unit for heating operation, If any one of the indoor unit satisfy the heating condition, the system will start to run in
heating mode
b. If all the indoor units satisfy the stop-condition, the compressor stops and the outdoor fan stops after 1min;
c. If only part of the indoor units satisfy the stop-condition, the compressor decrease the frequency immediately and operates
according to demand.
d. Change Heating mode to cooling mode or dehumidication mode, the whole system will stop rst, then restart under the required
mode.
e. Defrosting function
When the defrosting condition is satised, the 4-way valve reverses the direction, the outdoor fan stop.After the 4-way valve reverses
the direction, the frequency of compressor rises, and the unit
will start defrosting under cooling cycle.
4) Fan mode
Only indoor fan run. Compressor, outdoor fan and 4-way valve are closed .
2. Protection Function
1) Mode conict protection of indoor units
When the setting mode is different of different indoor unit, the unit runs in below status:
a. The system mode is determined by the rst turning on indoor unit except indoor unit is in fan mode. Cooling mode (dry mode) is in
conict with heating mode.
b. If the rst turning on unit is fan mode, and the second turning on unit is cooling or heating mode, then the system will run in cooling
or heating mode
2) Overload protection
If the tube temperature at the high pressure side is higher than normal, the compressor frequency is restricted or decreased to normal
operation frequency.
3) High exhaust temperature protection
If the exhaust temperature is higher than protection value, the compressor stops running.
If the exhaust temperature protection continuously appears for 6 times, the compressor can’t resume running. In this case, only by
cutting off the power and then reenergize that the compressor can restart. If the running duration of the compressor is longer than
10min, the protection times will be cleared to zero time.
4) Communication malfunction
Detection of the quantity of installed indoor units: after 3min of energizing, if the outdoor unit does not receive the communication data
of certain indoor unit, the outdoor unit will judge that indoor unit is not installed. If the outdoor unit receives the communication data of
that indoor unit later, the communication malfunction will be cleared.
13
Page 13
Service Manual
5) System high-pressure protection
a. When the high-pressure switch detects the system pressure higher than limit ,then the high-pressure switch cuts off, the system will stop
to run.
b.If high-pressure protection is detected for two times within one hour, only by cutting off the power and then reenergize that the compressor
can restart.
6) Compressor overload protection
No matter the compressor is on or off, when the compressor overload switch is detected activated, the system will stop and indoor unit
will display H3. If the compressor overload protection appears for more than 6 times, in this case, only by cutting off the power and then
reenergize that the compressor can restart. If the running duration of the compressor is longer than 30min, the protection times will be
cleared to zero.
7) Antifreeze protection
Under cooling and dry mode, 6minutes after the compressor is started:
When it is detected for 3 minutes successively that Tevap. Is less than -2
activated, in which case the outdoor unit will immediately shut off the indoor electronic expansion valve and the capacity will be set to “0”.
If Tevap. exceed 13
O
C and the compressor has remained at OFF for at least 3minutes, the compressor will resume its original operation
O
C(varying with indoor unit), the antifreeze protection will be
state.
8) IPM Protection
a. When the IPM module protection is detected, the unit will stop as the indoor temperature reaching set temperature, PFC is closed,
display IPM protection malfunction. After the compressor stops for 3min, the unit will resume operation status automatically; if the IPM
protection is detected for more than 6 times continuously (If the running time of the compressor is longer than 10min, the protection times
record will be cleared), the system will stop and send the signal of module protection to indoor unit. The unit can not resume operation
status automatically, but can resume running only after cutting off the power and then putting through the power.
b. IPM module overheating protection
(a) When TIPM＞88
(b) When 88
O
C＜TIPM＜95OC, the operation frequency of compressor lows down 1HZ/1s;
(c) When TIPM＞100
O
C, prohibit to raise frequency;
O
C, the compressor stops. After the compressor stops for 3min, if TIPM＜77OC, the compressor and the outdoor fan
will resume operation.
9) DRED function
If the power of DRED device is supplied by switching power supply, when different DRED signals are received, the corresponding
optocouplers are put through to make the AD sample circuit on the main board detect the different voltages. Different voltages are
corresponding to different DRED modes. After entering DRED mode, the indoor unit displays the corresponding operation code of DRED
mode.
d1: Outdoor compressor stops;
d2: The electricity consumption of complete unit in 30min is less than or equals to 50% of rated electricity consumption;
d3: The electricity consumption of complete unit in 30min is less than or equals to 75% of rated electricity consumption
14
Page 14
Service Manual
Part
: Installation and Maintenance
Ⅱ
7. Notes for Installation and Maintenance
Safety Precautions:
Important!
Please read the safety precautions carefully before
installation and maintenance.
The following contents are very important for installation
and maintenance.
Please follow the instructions below.
●The installation or maintenance must accord with the
instructions.
●Comply with all national electrical codes and local
electrical codes.
●Pay attention to the warnings and cautions in this
manual.
●All installation and maintenance shall be performed by
distributor or qualied person.
●All electric work must be performed by a licensed
technician according to local regulations and the
instructions given in this manual.
●Be caution during installation and maintenance. Prohibit
incorrect operation to prevent electric shock, casualty and
other accidents.
Warnings
Electrical Safety Precautions:
1. Cut off the power supply of air conditioner before
checking and maintenance.
2. The air condition must apply specialized circuit and
prohibit share the same circuit with other appliances.
3. The air conditioner should be installed in suitable
location and ensure the power plug is touchable.
4. Make sure each wiring terminal is connected firmly
during installation and maintenance.
5. Have the unit adequately grounded. The grounding
wire can’t be used for other purposes.
6. Must apply protective accessories such as protective
boards, cable-cross loop and wire clip.
7. The live wire, neutral wire and grounding wire of
power supply must be corresponding to the live wire,
neutral wire and grounding wire of the air conditioner.
8. The power cord and power connection wires can’t be
pressed by hard objects.
9. If power cord or connection wire is broken, it must be
replaced by a qualied person.
10. If the power cord or connection wire is not long enough,
please get the specialized power cord or connection wire
from the manufacture or distributor. Prohibit prolong the wire
by yourself.
11. For the air conditioner without plug, an air switch must
be installed in the circuit. The air switch should be all-pole
parting and the contact parting distance should be more than
3m.
12. Make sure all wires and pipes are connected properly and
the valves are opened before energizing.
13. Check if there is electric leakage on the unit body. If yes,
please eliminate the electric leakage.
14. Replace the fuse with a new one of the same specication
if it is burnt down; don’t replace it with a cooper wire or
conducting wire.
15. If the unit is to be installed in a humid place, the circuit
breaker must be installed.
Installation Safety Precautions:
1. Select the installation location according to the requirement of this manual.(See the requirements in installation
part)
2. Handle unit transportation with care; the unit should not
be carried by only one person if it is more than 20kg.
3. When installing the indoor unit and outdoor unit, a sufcient xing bolt must be installed; make sure the installation
support is rm.
4. Ware safety belt if the height of working is above 2m.
5. Use equipped components or appointed components during installation.
6. Make sure no foreign objects are left in the unit after nishing installation.
Refrigerant Safety Precautions:
1. Avoid contact between refrigerant and re as it generates
poisonous gas; Prohibit prolong the connection pipe by
welding.
2. Apply specied refrigerant only. Never have it mixed with
any other refrigerant. Never have air remain in the refrigerant
line as it may lead to rupture or other hazards.
3. Make sure no refrigerant gas is leaking out when
installation is completed.
4. If there is refrigerant leakage, please take sufficient
measure to minimize the density of refrigerant.
5. Never touch the refrigerant piping or compressor without
wearing glove to avoid scald or frostbite.
Improper installation may lead to re hazard, explosion,
electric shock or injury.
15
Page 15
Service Manual
Safety Operation of Flammable Refrigerant
Qualication requirement for installation and maintenance man
●All the work men who are engaging in the refrigeration system should bear the valid certication awarded by the
authoritative organization and the qualication for dealing with the refrigeration system recognized by this industry. If it needs
other technician to maintain and repair the appliance, they should be supervised by the person who bears the qualication for
using the ammable refrigerant.
●It can only be repaired by the method suggested by the equipment’s manufacturer
Installation notes
●The air conditioner is not allowed to use in a room that has running re (such as re source,working coal gas ware,
operating heater).
●It is not allowed to drill hole or burn the connection pipe.
●The air conditioner must be installed in a room that is larger than the minimum room area.
The minimum room area is shown on the nameplate or following table a.
●Leak test is a must after installation.
table a - Minimum room area(m
Maintenance notes
●Check whether the maintenance area or the room area meet the requirement of the nameplate.
— It’s only allowed to be operated in the rooms that meet the requirement of the nameplate.
●Check whether the maintenance area is well-ventilated.
— The continuous ventilation status should be kept during the operation process.
●Check whether there is re source or potential re source in the maintenance area.
— The naked ame is prohibited in the maintenance area; and the “no smoking” warning board should be hanged.
●Check whether the appliance mark is in good condition.
— Replace the vague or damaged warning mark.
.
2
)
Welding
●If you should cut or weld the refrigerant system pipes in the process of maintaining, please follow the steps as below:
a. Shut down the unit and cut power supply
b. Eliminate the refrigerant
c. Vacuuming
d. Clean it with N2 gas
e. Cutting or welding
f. Carry back to the service spot for welding
●Make sure that there isn’t any naked ame near the outlet of the vacuum pump and it’s well-ventilated.
●The refrigerant should be recycled into the specialized storage tank.
Filling the refrigerant
●Use the refrigerant lling appliances specialized for R32. Make sure that different kinds of refrigerant won’t contaminate with
each other.
●The refrigerant tank should be kept upright at the time of lling refrigerant.
●Stick the label on the system after lling is nished (or haven’t nished).
●Don’t overlling.
●After lling is nished, please do the leakage detection before test running; another time of leak detection should be done
when it’s removed.
Safety instructions for transportation and storage
●Please use the ammable gas detector to check before unload and open the container.
●No re source and smoking.
●According to the local rules and laws.
16
Page 16
Service Manual
Safety Precautions for Installing and Relocating the Unit:
To ensure safety, please be mindful of the following precautions.
Warnings
1. When installing or relocating the unit, be sure to keep the refrigerant circuit free from air or substances other than the
specied refrigerant.
Any presence of air or other foreign substance in the refrigerant circuit will cause system pressure rise or compressor rupture, resulting in
injury.
2.When installing or moving this unit, do not charge the refrigerant which is not comply with that on the nameplate or
unqualied refrigerant.
Otherwise, it may cause abnormal operation, wrong action, mechanical malfunction or even series safety accident.
3.When refrigerant needs to be recovered during relocating or repairing the unit, be sure that the unit is running in cooling
mode.Then, fully close the valve at high pressure side (liquid valve).About 30-40 seconds later, fully close the valve at low
pressure side (gas valve), immediately stop the unit and disconnect power. Please note that the time for refrigerant recovery
should not exceed 1 minute.
If refrigerant recovery takes too much time, air may be sucked in and cause pressure rise or compressor rupture, resulting in injury.
4.During refrigerant recovery, make sure that liquid valve and gas valve are fully closed and power is disconnected before
detaching the connection pipe.
If compressor starts running when stop valve is open and connection pipe is not yet connected, air will be sucked in and cause pressure
rise or compressor rupture, resulting in injury.
5.When installing the unit, make sure that connection pipe is securely connected before the compressor starts running.
If compressor starts running when stop valve is open and connection pipe is not yet connected, air will be sucked in and cause pressure
rise or compressor rupture, resulting in injury.
6.Prohibit installing the unit at the place where there may be leaked corrosive gas or ammable gas.
If there leaked gas around the unit, it may cause explosion and other accidents.
7.Do not use extension cords for electrical connections. If the electric wire is not long enough, please contact a local service
center authorized and ask for a proper electric wire.
Poor connections may lead to electric shock or re.
8.Use the specied types of wires for electrical connections between the indoor and outdoor units. Firmly clamp the wires so
that their terminals receive no external stresses.
Electric wires with insufcient capacity, wrong wire connections and insecure wire terminals may cause electric shock or re.
Safety Precautions for Refrigerant
●To realize the function of the air conditioner unit, a special refrigerant circulates in the system. The used refrigerant is the
uoride R32,which is specially cleaned. The refrigerant is ammable and inodorous. Furthermore, it can leads to explosion
under certain conditions. But the ammability of the refrigerant is very low. It can be ignited only by re.
●Compared to common refrigerants, R32 is a nonpolluting refrigerant with no harm to the ozonosphere. The inuence upon
the greenhouse effect is also lower. R32 has got very good thermodynamic features which lead to a really high energy
efciency. The units therefore need a less lling.
WARNING:
●Do not use means to accelerate the defrosting process or to clean, other than those recommended by the manufacture.
Should repair be necessary,contact your nearest authorized Service Centre. Any repairs carried out by unqualied
personnel may be dangerous. The appliance shall be stored in a room without continuously operating ignition sources. (for
example:open ames , an operating gas appliance or an operating electric heater.)
●Do not pierce or burn.
●Appliance shall be installed, operated and stored in a room with a oor area larger than 4m (or 6m ).
●Appliance lled with ammable gas R32. For repairs, strictly follow manufacturer’
refrigrants not contain odour.
●Read specialist’s manual.
s instructions only.Be aware that
17
Page 17
Service Manual
Main Tools for Installation and Maintenance
1. Level meter, measuring tape
4. Electroprobe
7. Electronic leakage detector
2. Screw driver
5. Universal meter
8. Vacuum pump
3. Impact drill, drill head, electric drill
6. Torque wrench, open-end wrench, inner
hexagon spanner
9. Pressure meter
10. Pipe pliers, pipe cutter
11. Pipe expander, pipe bender
12. Soldering appliance, refrigerant container
18
Page 18
Service Manual
.
8. Installation Manual
Installation procedures
Preparation before installation
Start installation
Read the requirements
for electric connection
Select indoor unit
installation location
Install wall-mounting
frame, drill wall holes
Connect pipes of indoor
unit and drainage pipe
Connect wires of indoor unit
Bind up pipes and
hang the indoor unit
Make the bound pipes pass
through the wall hole and then
connect outdoor unit
select installation
location
Prepare tools
Select outdoor unit
installation location
Install the support of outdoor unit
(select it according to the actual situation)
Fix outdoor unit
Install drainage joint of outdoor unit
(only for cooling and heating unit)
Connect pipes of outdoor unit
Connect wires of outdoor unit
Neaten the pipes
Vacuum pumping and leakage detection
Check after installation and test operation
Finish installation
Note: this flow is only for reference; please find the more detailed installation steps in this section
19
Page 19
Service Manual
8.1 Preparation before Installation
8.1.1 Standard parts
Please use the following standard parts supplied by SINCLAIR.
Pars of Outdoor Unit
NameNamber
Picture
Quantity
Remark
2
Owner’s manual
Tube connector
1 1
6
subassy
8.1.2 Selecting installation site
Forbidden Items! It indicates that improper operation might lead to human casualty or sever injury.
Items need to be followed. It indicates that improper operation might lead to personal injury or property damage.
Install the unit at a place where is
adequa to withstand the weight
of the unit and make sure the
unit would not shake or fall off.
Never expose the unit under
direct sunshine and rainful.
install the unit at a place where
is against dust, typhoon and
earthquake.
20
Try to keep the unit away from
combustible, inammable and
corrosive gas or exhaust gas.
Keep the indoor and outdoorunits
close to each other as much as
possible to reduce the pipe
length and bends.
Leave some space for heat
exchanging and servicing so
as to guarantee unit normal
operation.
Never allow children to approach
to the unit and take measures
to prevent children touching the
unit.
Page 20
Service Manual
When the outdoor unit is totally surrounded by walls, the installation space of the unit should be as required in Fig.1.
＞1000
＞
500
＞2000
＞
500
＞500
500
＞
＞2000
unit:mm
8.1.3 Piping Connection
Fig.1
The maximum pipe length is shown in the following table. When the distance between units (piping length) is out of the range listed
below, normal run of the unit can not be guaranteed.
M ode l
MV-E36BI
MV-E42BI
ConnectingPipe(mm)
Ф 6.35 9.52
ФФ 75
Φ75
9.526.35
Max. Pipe length(m
Max. Height Difference between
)
I ndoor Unit andOutdoor Unit (m)Liqu id Gas
When the outdoor unit is above maximum
height difference between indoor and
outdoor units is up to 15m; When the indoor
unit is above,maximum height difference
between indoor and outdoor units is up to
15m.
Note:
①
Use water-proof insulating pipe.
②
Wall thickness of pipe: 0.5-1.0 mm;bearing pressure: 3.0MPa
③
The longer the connection pipe is, the more cooling and heating capacity will decrease.
21
Page 21
Service Manual
8.2 Installation Instruction
1106
1106
8.2.1 Outline and dimension of the outdoor unit
MV-E36BI
Outline dimension andMounting holes
350282
90
1080
631 194
MV-E42BI
Outline dimension andMounting holes
440
401
Fig.2
1080
631 194
22
440
401
282 45090
Fig.3
Page 22
Service Manual
8.2.2 Installation of the Connection Pipe
Φ6.35 mm ≥0.8 mm 1530 N·m
Φ9.52 mm
≥0.8
mm 35
40 N·m
Φ12.7 mm ≥ mm 4550 N·m
Φ15.9 mm ≥1.0 mm 6065 N·m
0.8
Pipe
diameter
Thickness of
copper tube
Tightening
torque
Safety Precautions
Please read this manual carefully before using and operating correctly as instructed in this manual.
Please especially take notice of the following two symbols:
Connecting piping for indoor unit and outdoor unit are in manifold mode. (As shown below).
Fig.4
1) Piping between the Indoor and Outdoor Units
● If the liquid and gas stop valves which have the sign of A , B, C, D or E have not been connected to the indoor units, please turn off the
screw cap with the spanner airproof.
● Refer to Fig.5 for the moments of torque for tightening screws.
● Let the are end of the copper pipe point at the screw and then tighten the screw by hand.
● After that, tighten the screw by the torque wrench unit it clatters (as shown in Fig.5).
● The bending degree of the pipe can not be too small; otherwise it will crack. And please use a pipe tube bender to bend the pipe.
● Wrap the exposed refrigerant pipe and the joints by sponge and then tighten them with the plastic tape.
Pipe Flare Nut
Spanner
Fig.5
CAUTION!
. During the connection of the indoor unit and the refrigerant pipe, never pull any joints of the indoor unit by force;
①
otherwise the capillary pipe or other pipe may crack, which then would result in leakage.
. The refrigerant pipe should be supported by brackets, that is, don’t let the unit withstand the weight of it.
②
. If the piping connection size of outdoor unit does not match the piping connection size of indoor unit, use the piping
③
connection dimension of indoor unit. And use different-diameter joints which is installing on the
place of the piping connection to connect the indoor unit.
CAUTION!
● For the Free Match system, each pipe should be labeled to tell which system it belongs to avoid mistaken inaccurate piping.
Pipe
diameter(inch)
Φ6.35mm ≥0.8mm 15~30 N·m
Φ9.52mm ≥0.8mm 35~40 N·m
Φ12.7mm ≥0.8mm 45~50 N·m
Φ15.9mm ≥1.0mm 60~65 N·m
Thickness of
copper tube
Tightening
torque(ft·Ibf)
23
Page 23
Service Manual
2) Allowable pipe length and drop height among indoor and outdoor units
Height difference between indoor unit and outdoor unit H1
x
If the total refrigerant pipe length (liquid pipe) is smaller than that listed in the table below, no additional refrigerant will be charged.
Model
Total
Liquid Pi pe
Lenght(a+b+c+d+e)
Allowable Length and Height Fall of the Refrigerant Pipe
MV-E36BI
Total length(actual length) of
fitting pipe
length of farthest fitting pipe(ft)
Height difference
between outdoor
unit and indoor
unit
Outdoor unit
at upper
Outdoor unit
at lower
Height difference between
indoor units(ft)
MV-E36BI MV-E42BI
40 40
Allowable Value
Fitting pipe
75m
25m
MV-E42BI
75m
25m
15m 15m
15m 15m
7.5m 7.5m
Outdoor unit
Indoor unit
Height difference between
indoor units H2
Equivalent length of the farthest fitting pipe L
L4L3L2 L5L1
a
b
Indoor unit
Fig.6
c
d
e
24
Page 24
Service Manual
3) Installation of the Protection Layer of the Refrigerant Pipe
Safety Precautions
Please read this manual carefully before using and operating correctly as instructed in this manual.
Please especially take notice of the following two symbols:
Safety Precautions
Please read this manual carefully before using and operating correctly as instructed in this manual.
Please especially take notice of the following two symbols:
Warning! It indicates improper operation which will lead to human casualty or severe injury.
a. The refrigerant pipe should be insulated by the insulating material and plastic tape in order to prevent condensation and water
leakage.
b. The joints of the indoor unit should be wrapped with the insulating material and no gap is allowed on the joint of the indoor unit, as
shown in Fig.7.
Fig.7
No gap
CAUTION!
After the pipe is protected well enough, never bend it to form a small angle; otherwise it would crack or break.
4)Wrap the Pipe with Tape
a. Bundle the refrigerant pipe and electric wire together with tape, and separate them from the drain pipe to prevent the condensate
water overowing.
b. Wrap the pipe from the bottom of the outdoor unit to the top of the pipe where it enters the wall. During the wrapping, the later circle
should cover half of the former one.
c. Fix the wrapped pipe on the wall with clamps.
CAUTION!
. Do not wrap the pipe too tightly; otherwise the insulation effect would be weakened. Additionally, make sure the drain hose is
①
separated from the pipe.
.After that, ll the hole on the wall with sealing material to prevent wind and rain coming into the room.
②
(4) Support and protection for pipeline Support should be made for hanging connection pipe. Distance between each support can not be
over 1m.
:
8.2.3 Air Purging and Refrigerant Charge
Air purging
1) The refrigerant has been charged into the outdoor unit before shipment, while additional refrigerant still need be charged into the
refrigerant pipe during the eld installation.
2) Check if the liquid valve and the gas valve of the outdoor unit are closed fully.
3) As shown in the following gure (Fig.8), expel the gas inside the indoor unit and refrigerant pipe out by the vacuum pump.
ManometerManometer
"LO"Knob
liquid valve
Connection hose
Gas valve
4) When the compressor is not running, charge the R32 refrigerant into the refrigerant pipe from the liquid valve of the outdoor unit (do
not do it from the gas valve).
Additional refrigerant charging
a. Refrigerant Charge in the Outdoor Unit before Shipment
Notes
:
. Outdoor unit has been charged refrigerant before delivery. The refrigerant charge is not included those charged additionally in the
①
"HI"Knob
Vacuuming pump
Fig.8
25
Page 25
Service Manual
indoor unit and the refrigerant pipe.
. The amount of the additional refrigerant charge is dependent on the diameter and length of the liquid refrigerant pipe which is decided by
②
the actual yield installation requirement.
. Record the additional refrigerant charge for future maintenance.
③
b. Calculation of the Additional Refrigerant Charge
Additional Refrigerant Charge=(ΣLength of Liquid Pipe Φ9.52X54+ΣLength of Liquid PipeΦ6.35X22)-880
The biggest additional refrigerant charge value is 800g. It means that if the calculated value exceed 800g, the additional refrigerant charge
takes 800g, while the calculated value less than 800g, the additional refrigerant charge takes the calculated value.
8.2.4 Electric Wiring
1) Wiring precautions
● The installation must be done in accordance with the national wiring regulations.
● Only the power cord with the rated voltage and exclusive circuit for the air conditioning can be used.
● Do not pull the power cord by force.
● The electric installation should be carried out by the technician as instructed by the loc al laws, regulations and also this manual.
● The diameter of the power cord should be large enough and once it is damaged it must be replaced by the dedicated one.
● The earthing should be reliable and the earth wire should be connected to the dedicated device of the building by the technician. Besides,
the air switch coupled with the leakage current protection switch must be equipped, which is of enough capacity and of both magnetic and
thermal tripping functions in case of the short circuit and overload.
Models
MV-E36BI
MV-E42BI
brown
(black)
1
/
brown
(black)
blue
1
/
blue
/1
32:(5
yellowgreen
Power Supply
220-240V~,50Hz
220-240V~,50Hz
1
yellow-
blue
1
black
black
,1'22581,7$
$
brown
green
blue
Capacity of the air Switch(A)
32
32
Recommended Cord(piecesx
sectional area)
3x4mm
3x4mm
2
2
MV-E36BI
287'225 81,7
$
brown
yellowgreen
%
1
brown
blue
black
,1'22581,7%
MV-E42BI
yellowgreen
1
blue
black
,1'22581,7&
&
brown
yellowgreen
1
blue
black
,1'22581,7'
'
brown
yellowgreen
287'225 81,7
blue
1
black
(
brown
yellowgreen
%
yellowgreen
1
blue
black
brown
yellowgreen
blue
1
black
&
brown
yellowgreen
1
blue
black
'
brown
yellowgreen
26
/1
32:(5
,1'22581,7$
,1'22581,7%
,1'22581,7&
,1'22581,7'
,1'22581,7(
Page 26
Service Manual
2) Earthing Requirements
Safety Precautions
Please read this manual carefully before using and operating correctly as instructed in this manual.
Please especially take notice of the following two symbols:
● The air conditioner is classied into the Class I appliances, so its earthing must be reliable.
● The yellow-green line of the air conditioner is the earth line and can not be used for other purpose, cut off or xed by the tapping screw;
otherwise it would cause the hazard of electric shock.
● The reliable earth terminal should be provided and the earth wire can not be connected to any of the following places.
Running water pipe;
①
3) Electrical Cable Connection Cautions!
. The mistake connecting line will result in malfunction. After the electrical wiring working, ensure the wire between the connection
①
place and the xed place has a certain freedom degree.
. The connection piping and connection line of each indoor unit should connect well according to the instruction.
②
. The electric installation should be carried out by the technician as instructed by the local laws, regulations and also this manual.
③
. The installation location should be dry, and can't be expose in direct sunlight or strong breeze.
④
. Have to install a breaker in the circuit that can shut off the main power supply of the system. Besides, the air switch coupled with the
⑤
leakage current protection switch must be equipped.
4) Wiring of the Power Cord
. Open the side plate.
①
. Connect the power card to the terminals “L”, “N” and also the earthing bolt, and then connect the wiring terminals “N(1),2,3” of the
②
indoor unit to those of the outdoor unit correspondingly.
. Fix the power cord with wire clips.
③
. Let the power cord go through the rubber ring.
④
.Supply cords of parts of appliances for outdoor use shall not be lighter than polychloroprene sheathed exible cord(code designation
⑤
60245 IEC 57).
CAUTIONS!
If the supply cord is damaged, it must be replaced by the manufacturer or its service agent or a similarly qualied person in order to avoid
a hazard.
Coal gas pipe;
②
Sewage pipe;
③
Other places where the professional personnel think unreliable.
④
27
Page 27
Service Manual
9. Troubleshooting
9.1 Malfunction Indicator
The error code will be displayed on the wired controller and the main board of the outdoor unit.
The meaning of each error, as shown in table 13.
Name of malfunction
Compressor runs Flash once
Defrost Flash twice H1
Anti-freezing protection Flash 3 times E2
IPM protection Flash 4 times H5
AC over-current protection Flash 5 times E5
Over-burden protection Flash 6 times H4
Compressor exhaust high temperature protection Flash 7 times E4
Compressor overload protection Flash 8 times H3
Power protection Flash 9 times L9
EEPROM reads and write protection Flash 11 times
Low PN voltage protection Flash 12 times PL
Over voltage protection for PN Flash 13 times PH
PFC protection Flash 14 times HC
Yellow light Red light Green light
The indicator display
Indoor display
PFC module temperature protection Flash 15 times oE
Low pressure protection Flash 17 times E3
High pressure protection Flash 18 times E1
Limit/decline frequency(electric current) Flash 1 times
Frequency limit(exhaust) Flash 2 times
Frequency limit(Over-burden) Flash 3 times
Outdoor ambient sensor malfunction Flash 6 times F3
Outdoor tube sensor malfunction Flash 5 times F4
Exhaust sensor malfunction Flash 7 times F5
Attain the temperature of switch on Flash 8 times
Frequency limit(power) Flash 13 times
Outdoor fan malfunction Flash 14 times
Frequency limit(PFC module temperature) Flash 15 times
PFC module sensor malfunction Flash 16 times oE
Liquid pipe temperature sensor malfunction of A Flash 17 times
28
Page 28
Service Manual
14/18K: 24/28K:
43 Communication failure with Unit A
● Ƽ ● ●
44 Communication failure with Unit B Ƽ Ƽ ● ●
45 Communication failure with Unit C ○ ○ Ƽ ●
46 Communication failure with Unit D ● ○ Ƽ ●
47 Unit A freeze protection Ƽ ○ Ƽ ●
48 Unit B freeze protection ○ ● Ƽ ●
49 Unit C freeze protection ● ● Ƽ ●
50 Unit D freeze protection Ƽ
●
Ƽ
●
51 Unit A
overheating prevention protection
○
Ƽ
Ƽ
●
52 Unit B
overheating prevention protection
●
Ƽ Ƽ
●
53 Unit C
overheating prevention protection
Ƽ Ƽ Ƽ
●
54 Unit D
overheating prevention protection
○
○
○
Ƽ
55 Unit A communication wire misconnection or expansion valve malfunction
●
○
○
Ƽ
56 Unit B communication wire misconnection or expansion valve malfunction Ƽ
○
○
Ƽ
57 Unit C communication wire misconnection or expansion valve malfunction
○
●
○
Ƽ
58 Unit D communication wire misconnection or expansion valve malfunction
●
●
○
Ƽ
Note: discharge the position in below pictures with discharge resistance after open the top cover and
check if the voltage is below 20V with universal meter, then begin to check.
14/18K: 24/28K:
43 Communication failure with Unit A
●
Ƽ
●
●
44 Communication failure with Unit B Ƽ Ƽ
●
●
45 Communication failure with Unit C
○
○
Ƽ
●
46 Communication failure with Unit D
●
○
Ƽ
●
47 Unit A freeze protection Ƽ
○
Ƽ
●
48 Unit B freeze protection
○
●
Ƽ
●
49 Unit C freeze protection
●
●
Ƽ
●
50 Unit D freeze protection Ƽ
●
Ƽ
●
51 Unit A
overheating prevention protection
○
Ƽ
Ƽ
●
52 Unit B
overheating prevention protection
●
Ƽ Ƽ
●
53 Unit C
overheating prevention protection
Ƽ Ƽ Ƽ
●
54 Unit D
overheating prevention protection
○
○
○
Ƽ
55 Unit A communication wire misconnection or expansion valve malfunction
●
○
○
Ƽ
56 Unit B communication wire misconnection or expansion valve malfunction Ƽ
○
○
Ƽ
57 Unit C communication wire misconnection or expansion valve malfunction
○
●
○
Ƽ
58 Unit D communication wire misconnection or expansion valve malfunction
●
●
○
Ƽ
Note: discharge the position in below pictures with discharge resistance after open the top cover and
check if the voltage is below 20V with universal meter, then begin to check.
1 IPM protection malfunction:
Main checking point:
● If the input voltage of the unit is within normal range?
● If the connection wire of compressor is connected well? Is it loose? If the connection sequence is correct?
Gas pipe temperature sensor malfunction of A Flash 18 times
Liquid pipe temperature sensor malfunction of B Flash 19 times
Gas pipe temperature sensor malfunction of B Flash 20 times
Liquid pipe temperature sensor malfunction of C Flash 21 times
Gas pipe temperature sensor malfunction of C Flash 22 times
Liquid pipe temperature sensor malfunction of D Flash 23 times
Gas pipe temperature sensor malfunction of D Flash 24 times
Liquid pipe temperature sensor malfunction of E Flash 25 times
Gas pipe temperature sensor malfunction of E Flash 26 times
Exit of the condenser tube sensor malfunction Flash 27 times
Correspondence is normal
Communication failure between indoor unit and
outdoor unit
Indoor ambient sensor malfunction F1
Indoor evaporate sensor malfunction F2
Mode conict E7
Refrigerant gathering mode
Jumper cap malfunction protection C5
Flash 7
times(n=indoor
unit number)
Often bright
(indoor unit all
Communication
failure)
Anti-freezing protection FH
Fo
9.2 Malfunction Checking and Elimination
1 IPM protection malfunction:
Main checking point:
● If the input voltage of the unit is within normal range?
● If the connection wire of compressor is connected well? Is it loose? If the connection sequence is correct?
● If the resistance of compressor coil is normal? If the isolation of compressor coil with copper pipe is good?
● If the unit is overloaded? If the heat radiation of the unit is good?
● If the refrigerant charge is suitable?
Flow chart:
29
Page 29
Service Manual
Energize the unit
Please check:
1. if the indoor and outdoor heat exchanges are
dirty, if there is obstacle to affect the radiation;
2. if the indoor and outdoor fans are running
normally;
3. if the pressure of the
4. if the refrigerant is too much which causes
the high level of pressure;
If the wire of compressor is connected
well and correctly?
system is too high;
No
If the above cases are existed?
No
Yes
Correct according to the service
manual and then energize the
unit to operate
Yes
Yes
Test the resistance between
the three phases
If the resistance is normal?
Yes
Test the isolation impedance
between the
compressor and thecopper pipe
If the resistance is above 500M ?
three phases of the
No
Replace the
compressor
Reconnect the wire of the
compressor according to the
correct wiring method
No
30
Malfunction is eliminated
No
Replace the outdoor
mainboard
End
Yes
Page 30
Service Manual
2. PFC protection malfunction, capacity charging malfunction
Main checking points:
If the wiring of the induction is connected well and if the induction is broken;
If the mainboard is broken;
Flow chart:
Start
Check If the power supply is normal
Power supply is abnormal
No
Yes
Turn on the unit after the
power supply resumes to
normal situation
Check if the outdoor induction is broken
No
Replace the outdoor
mainboard
End
Yes
No
noitcudni eht ecalpeRnekorb si noitcudni ehT
Malfunction is eliminated
Yes
31
Page 31
Service Manual
3. Compressor desynchronizing malfunction
Main checking points:
If the pressure of the system is too high;
If the eletric expansion valve is working normally or it is broken;
If the radiation of the unit is good;
Flow chart:
The unit appears desynchronizing
as soon as energizing and starting
The stop duration of the compressor is longer
than 3min?
Yes
The wiring of the compressor is
connected properly?
Yes
The eletric expansion valve is broken?
Yes
No
No
No
No
No
Reconnect the wire properly
Eliminate the malfunction
Replace the eletric
expansion valve
Eliminate the malfunction
Yes
Yes
32
Replace the outdoor mainboard
Eliminate the malfunction
No
Replace the compressor
End
Yes
Page 32
Service Manual
Desynchronizing happens
during operation
Outdoor unit is working?
Yes
Unit radiation is good?
Yes
Input voltage is normal?
Yes
Refrigerant amount is too much?
No
Replace the outdoor
mainboard
No
No
No
Yes
Check if fan
terminal is
connected well
Improve radiation
situation of the unit
(such as cleaning
the heat exchanger,
improve ventilation
Turn on the unit
after the power
supply voltage
resumes normal
Charge refrigerant
according to the
service manual
Replace the fan capacitor
Replace the outdoor unit
Eliminate the malfunction
No
Replace the compressor
End
Yes
33
Page 33
Service Manual
4. Compressor overload, diacharge protectionmalfunction
Main checking points:
Note: the detection method of the coil of the eletric expansion valve: there is five pieces of coil of the eletric expansion va
n
). Judge the condition of the electronic expansion valve through detecting these resistance.
If the eletric expansion valve is connected well or it is broken;
If there is refrigerant leakage;
If the overload protector is broken;
Flow chart:
Start
Replace the
overload
protector
No
If the overload protector is connected well?
Yes
Check the resistance between the two
ends of the overload protector in ambient temperature,
if the resistance is below 1k
Yes
If the wiring of the eletric expansion valve
is coonected well?
Yes
Check the coil of the eletric
expansion valve, replace
it if it is broken
Eliminate the malfunction
No
Check the refrigerant status, if there is
refrigerant leakage, recharge it according
to the service manual
Yes
No
No
Reconnect according
to the wiring diagram
Eliminate the malfunction
No
Replace outdoor
mainboard
End
Yes
the resistance of one of them (the leftmost or the rightmost one) is almost the same as the resistance of other terminal (withi
100
34
lve,
Page 34
Service Manual
5. Start failuremalfunction
Main checking points:
If the connection wire of the compressor is connected properly;
If the stop duration of the compressor is sufficient;
If the compressor is broken;
If the refrigerant charging amount is too much;;
Flow chart:
Energize and
start the unit
No
If the stop duration of the compressor
is longer than 3min
Yes
If the connection wire of the compressor
is connected well and correctly
Yes
No
If the refrigerant charging
amount is too much
Yes
Charge the refrigerant
according to the
service manual
Eliminate the malfunction
Yes
No
Reconnect the connection wire
of the compressor according
No
to the wiring diagram
Eliminate the malfunction
Yes
The stop duration of the unit is
not enough, the high and low
pressure of the system is not
balanced, restart it after 3min
No
Replace the outdoor
mainboard
Eliminate the malfunction
No
Replace the compressor
End
Yes
35
Page 35
Service Manual
6.
Temperature sensor malfunction
Main checking points:
If the temperature sensor is damaged or broken;
If the terminal of the temperature sensor is loosended or not connected;
If the mainboard is broken;
Flow chart:
Start
Check whether the wiring terminal between
temperature sensor and controller is loosened or poorly
contacted?
No
No
Check whether the
temperature senspr is normal according to
resistance table
Yes
Replace the controller with
the same model
No
No
Yes
Insert the temperature
sensor tightly
Eliminate the
malfunction
Replace the temperature sensor
with the same model
Eliminate the malfunction
6.
Yes
Yes
36
End
Page 36
Service Manual
7. DC fan malfunction
Main checking points:
If the outdoor fan is blocked by foreign objects;
Flow chart:
The connection wire of DC fan is connected reliably? If it is loose?
Start
Check if the
outdoor fan is blocked by
foreign objects?
No
If the connection wire
of DC fan is loose?
No
Replace the outdoor
mainboard
End
Yes
Yes
Turn on the unit
after removing the
foreign objects
Turn on the unit after
the connection wire
is properly connected
37
Page 37
Service Manual
8. Communication malfunction
Main checking points:
If the connection wire between the indoor unit and outdoor unit is connected well, if the wires inside the unit is connected well
;
If the indoor mainboard or outdoor main board is broken;
Flow chart:
Communication malfunction of some
De-energize,check if the connection
wire of indoor and outdoor unit and
the wire of the eletric box is
connected correctly
indoor units
Connected correctly
Yes
De-energize, change the communication wire of the well-
communicated indoor unit and malfunction indoor unit,
then energize the unit and wait for 3min
The malfunction indoor unit
resumes normal
No
Replace the mainboard of the
malfunction indoor unit
No
Yes
Reconnect according to
the wiring diagram
Replace outdoor
mainboard
Eliminate the malfunction
No
Yes
38
End
Page 38
Service Manual
All the indoor units appear
communication malfunction
De-energize,check if the connection
wire of indoor and outdoor unit and
the wire of the eletric box is
connected correctly
Connected correctly?
Yes
De-energize, check if the connection wire between
the outdoor mainboard and the filter board
according to the wiring diagram
Connected correctly?
Yes
The connection wire is broken?
No
Check if there is power input
bewtween the netrual wire and live
wire of the outdoor mainboard
No
No
Reconnect according to
the wiring diagram
Reconnect according to
the wiring diagram
Yes
Replace the
connection wire
Eliminate the malfunction
Eliminate the malfunction
No
Eliminate the malfunction
No
Yes
Yes
Yes
There is power input?
Yes
Replace the outdoor
mainboard
Resume communication?
Yes
End
Replace the filter board of
No
the outdoor unit
No
Replace indoor
mainboard
Eliminate the malfunction
No
Yes
39
Page 39
Service Manual
9. Anti-high temperatureand overload malfunction
Main checking points:
If the outdoor ambient temperature is within the normal range;
If the indoor fan and outdoor fan are running normally;
If the indoor and outdoor radiation environment is good;
Flow chart:
Start
If the outdoor ambient temperature
is above 53
No
If the indoor and outdoor radiation
is insufficient
No
If the outdoor fan is working normally
Yes
Replace outdoor
mainboard
No
Yes
Yes
It is a normal protection, please
operate the unit after the outdoor
ambient temperature has changed
Improve the radiation
environment of the unit
Check if the terminal of the fan is
connected well, if the fan is broken
Replace fan capacitor
40
Replace outdoor fan
End
Page 40
Service Manual
9.3 Maintenance Method for Normal Malfunction
1. Air Conditioner Can't be Started Up
Possible Causes Discriminating Method (Air conditioner Status) Troubleshooting
Conrm whether it's due to power failure. If yes,
No power supply, or poor
connection for power plug
Wrong wire connection between
indoor unit and outdoor unit,
or poor connection for wiring
terminals
Electric leakage for air conditioner
Model selection for air switch is
improper
2. Poor Cooling (Heating) for Air Conditioner
Possible Causes Discriminating Method (Air conditioner Status) Troubleshooting
Set temperature is improper Observe the set temperature on remote controller Adjust the set temperature
Rotation speed of the IDU fan
motor is set too low
Filter of indoor unit is blocked Check the lter to see it's blocked Clean the lter
Installation position for indoor unit
and outdoor unit is improper
Refrigerant is leaking
Malfunction of 4-way valve Blow cold wind during heating Replace the 4-way valve
Malfunction of capillary
Flow volume of valve is
insufcient
Malfunction of horizontal louver Horizontal louver can’t swing
Malfunction of the IDU fan motor The IDU fan motor can’t operate
Malfunction of the ODU fan motor The ODU fan motor can't operate
Malfunction of compressor Compressor can't operate
After energization, operation indicator isn’t bright
and the buzzer can't give out sound
Under normal power supply circumstances,
operation indicator isn't bright after energization
After energization, room circuit breaker trips off at
once
After energization, air switch trips off Select proper air switch
Small wind blow Set the fan speed at high or medium
Check whether the installation postion is proper
according to installation requirement for air
conditioner
Discharged air temperature during cooling is
higher than normal discharged wind temperature;
Discharged air temperature during heating is
lower than normal discharged wind temperature;
Unit's pressure is much lower than regulated
range
Discharged air temperature during cooling is
higher than normal discharged wind temperature;
Discharged air temperature during heating is
lower than normal discharged wind temperature;
Unit't pressure is much lower than regulated
range. If refrigerant isn’t leaking, part of capillary
is blocked
The pressure of valves is much lower than that
stated in the specication
wait for power recovery. If not, check power
supply circuit and make sure the power plug is
connected well.
Check the circuit according to circuit diagram
and connect wires correctly. Make sure all
wiring terminals are connected rmly
Make sure the air conditioner is grounded
reliably
Make sure wires of air conditioner is connected
correctly
Check the wiring inside air conditioner. Check
whether the insulation layer of power cord is
damaged; if yes, place the power cord.
Adjust the installation position, and install the
rainproof and sunproof for outdoor unit
Find out the leakage causes and deal with it.
Add refrigerant.
Replace the capillary
Open the valve completely
Refer to point 3 of maintenance method for
details
Refer to troubleshooting for H6 for maintenance
method in details
Refer to point 4 of maintenance method for
details
Refer to point 5 of maintenance method for
details
3. Horizontal Louver Can't Swing
Wrong wire connection, or poor
connection
Stepping motor is damaged Stepping motor can't operate Repair or replace stepping motor
Main board is damaged
Possible Causes Discriminating Method (Air conditioner Status) Troubleshooting
Check the wiring status according to circuit
diagram
Others are all normal, while horizontal louver
can't operate
Connect wires according to wiring diagram to
make sure all wiring terminals are connected
rmly
Replace the main board with the same model
41
Page 41
Service Manual
4. ODU Fan Motor Can't Operate
Possible causes Discriminating method (air conditioner status) Troubleshooting
Wrong wire connection, or poor
connection
Capacity of the ODU fan motor is
damaged
Power voltage is a little low or
high
Motor of outdoor unit is damaged
5. Compressor Can't Operate
Possible causes Discriminating method (air conditioner status) Troubleshooting
Wrong wire connection, or poor
connection
Capacity of compressor is
damaged
Power voltage is a little low or
high
Coil of compressor is burnt out
Cylinder of compressor is blocked Compressor can't operate Repair or replace compressor
Check the wiring status according to circuit
diagram
Measure the capacity of fan capacitor with an
universal meter and nd that the capacity is out of
the deviation range indicated on the nameplate of
fan capacitor.
Use universal meter to measure the power supply
voltage. The voltage is a little high or low
When unit is on, cooling/heating performance
is bad and ODU compressor generates a lot of
noise and heat.
Check the wiring status according to circuit
diagram
Measure the capacity of fan capacitor with an
universal meter and nd that the capacity is out of
the deviation range indicated on the nameplate of
fan capacitor.
Use universal meter to measure the power supply
voltage. The voltage is a little high or low
Use universal meter to measure the resistance
between compressor terminals and it's 0
Connect wires according to wiring diagram to
make sure all wiring terminals are connected
rmly
Replace the capacity of fan
Suggest to equip with voltage regulator
Change compressor oil and refrigerant. If no
better, replace the compressor with a new one
Connect wires according to wiring diagram to
make sure all wiring terminals are connected
rmly
Replace the compressor capacitor
Suggest to equip with voltage regulator
Repair or replace compressor
6. Air Conditioner is Leaking
Possible causes Discriminating method (air conditioner status) Troubleshooting
Drain pipe is blocked Water leaking from indoor unit
Drain pipe is broken Water leaking from drain pipe Replace drain pipe
Wrapping is not tight
7. Abnormal Sound and Vibration
Possible causes Discriminating method (air conditioner status) Troubleshooting
When turn on or turn off the unit,
the panel and other parts will
expand and there's abnormal
sound
When turn on or turn off the unit,
there's abnormal sound due
to ow of refrigerant inside air
conditioner
Foreign objects inside the indoor
unit or there're parts touching
together inside the indoor unit
Foreign objects inside the outdoor
unit or there're parts touching
together inside the outdoor unit
Short circuit inside the magnetic
coil
Abnormal shake of compressor Outdoor unit gives out abnormal sound
Abnormal sound inside the
compressor
Water leaking from the pipe connection place of
indoor unit
There's the sound of "PAPA"
Water-running sound can be heard
There's abnormal sound fro indoor unit
There's abnormal sound fro outdoor unit
During heating, the way valve has abnormal
electromagnetic sound
Abnormal sound inside the compressor
Eliminate the foreign objects inside the drain
pipe
Wrap it again and bundle it tightly
Normal phenomenon. Abnormal sound will
disappear after a few minutes.
Normal phenomenon. Abnormal sound will
disappear after a few minutes.
Remove foreign objects. Adjust all parts'
position of indoor unit, tighten screws and stick
damping plaster between connected parts
Remove foreign objects. Adjust all parts'
position of outdoor unit, tighten screws and
stick damping plaster between connected parts
Replace magnetic coil
Adjust the support foot mat of compressor,
tighten the bolts
If add too much refrigerant during maintenance,
please reduce refrigerant properly. Replace
compressor for other circumstances.
42
Page 42
Service Manual
11. Removal Procedure
Warning: Be sure to wait for a minimum of 20 minutes after turning off all
power supplies and discharge the refrigerant completely before removal.
Steps Procedure
1. Before disassembly
Complete axonometric drawing.
2. Remove valve cover
Remove the connection screw xing the valve
cover and then remove the valve cover.
Valve cover
47
Page 43
Service Manual
Steps Procedure
3. Remove top cover
Remove the screws connecting the top cover
with outer case, right side plate and left side
plate; lift the top cover upwards to remove it.
4. Remove front side plate
Remove the screws connecting the front side
plate with chassis and middle isolation sheet,
and then remove the front side plate.
Top cover
5. Remove right side plate
48
Front side plate
Remove the screws connecting the right side
plate with electric box assy, valve support,
chassis and condenser side plate, and then
remove the right side plate.
Right side plate
Page 44
Service Manual
Steps Procedure
6. Remove grille
Remove the 4 screws connecting the grille
and outer case, and then remove the panel
grille.
Grille
7. Remove outer case
Remove screws connecting outer case and
motor support, middle isolation sheet and
chassis, pull the outer case upwards slightly,
loosen clasps between outer case and left
side plate, and then remove the outer case.
8. Remove electric box assy
a.Remove the grounding wire screw on
the electric box assy and then remove the
grounding wire.
Outer case
Electric box assy
b.Disconnect the wiring terminals of
compressor, high pressure switch, compressor
overload protector, temperature sensor,
outdoor fan motor and 4-way valve.
Note:
keep pressing the circlip when disconnecting
the wiring terminal of reactor; keep pressing
the retainer when disconnecting other wiring
terminals.
c.Remove the wire inside the wiring groove.
49
Page 45
Service Manual
Steps Procedure
9. Remove blade, motor, motor support
a.Remove nuts fixing axial flow blade with
wrench, and then remove the axial ow blade.
b.Remove screws connecting motor support
and chassis, loosen damper block and then
remove the motor support.
c.Remove screws fixing motor, and then
remove the motor
10. Remove 4-way valve
Unsolder the spot weld between 4-way valve
and vapour liquid separator, compressor cutoff valve sub-assy and condenser, and then
remove the 4-way valve.
Note:
When unsoldering the spot weld, wrap the
4-way valve with wet cloth completely to avoid
damage to valve due to high temperature.
Motor support
Motor
Blade
4-way valve
11. Remove valve support
50
Valve support
Unsolder all spot welds connected with valve
support and then remove the valve support.
Note:
When unsoldering the spot weld, wrap the
gas valve and liquid valve with wet cloth
completely to avoid damage to valve due to
high temperature.
Page 46
Service Manual
Steps Procedure
12. Remove connection pipe sub-assy
Remove all spot welds connected with
connection pipe, and then remove the
connection pipe sub-assy.
13. Remove compressor
Remove the 3 foot nuts xing compressor and
then lift the compressor upwards to remove
the compressor and damping cushion.
Note:
Keep the ports of discharge pipe and suction
pipe from foreign objects.
Connection pipe
sub-assy
Compressor
14. Remove vapour liquid separator
Unsolder spot welds connected with vapour
liquid separator, remove screws connected
vapour liquid separator and middle isolation
sheet, and then remove the vapour liquid
separator.
vapour liquid
separator
51
Page 47
Service Manual
Steps Procedure
15. Remove compressor mounting plate sub-assy
Remove the 4 foot nuts fixing compressor
mounting plate sub-assy and chassis, to
remove the compressor mounting plate subassy.
16. Remove PFC electrical inductance
compressor mounting
plate sub-assy
PFC electrical
inductance
Remove the screws fixing PFC electrical
inductance and isolation sheet, to remove the
PFC electrical inductance.
17. Remove middle isolation sheet
Remove screws connecting middle isolation
sheet and support plate of condenser, chassis,
and then remove the middle isolation sheet.
Middle isolation sheet
52
Page 48
Service Manual
Steps Procedure
18. Remove left side plate
Remove screws connecting left side plate and
support plate of condenser, chassis, and then
remove the left side plate.
Left side plate
19. Remove condenser
Remove screws connecting condenser and
chassis, and then remove the condenser.
Remove screws connecting support plate of
condenser and condenser, and then remove
the support plate of condenser.
Condenser
Chassis sub-assy
53
Page 49
Service Manual
Appendix:
Appendix 1: Reference Sheet of Celsius and Fahrenheit
Conversion formula for Fahrenheit degree and Celsius degree: Tf=Tcx1.8+32
Set temperature
Fahrenheit
display
temperature
（℉）
61 60.8 16 69/70 69.8 21 78/79 78.8 26
62/63 62.6 17 71/72 71.6 22 80/81 80.6 27
64/65 64.4 18 73/74 73.4 23 82/83 82.4 28
66/67 66.2 19 75/76 75.2 24 84/85 84.2 29
68 68 20 77 77 25 86 86 30
Ambient temperature
Fahrenheit
display
temperature
（℉）
32/33 32 0 55/56 55.4 13 79/80 78.8 26
34/35 33.8 1 57/58 57.2 14 81 80.6 27
36 35.6 2 59/60 59 15 82/83 82.4 28
37/38 37.4 3 61/62 60.8 16 84/85 84.2 29
39/40 39.2 4 63 62.6 17 86/87 86 30
41/42 41 5 64/65 64.4 18 88/89 87.8 31
43/44 42.8 6 66/67 66.2 19 90 89.6 32
45 44.6 7 68/69 68 20 91/92 91.4 33
46/47 46.4 8 70/71 69.8 21 93/94 93.2 34
48/49 48.2 9 72 71.6 22 95/96 95 35
50/51 50 10 73/74 73.4 23 97/98 96.8 36
52/53 51.8 11 75/76 75.2 24 99 98.6 37
54 53.6
Fahrenheit
（℉）
Fahrenheit
（℉）
Celsius
（℃）
Celsius
（℃）
12 77/78 77 25
Fahrenheit
display
temperature
（℉）
Fahrenheit
display
temperature
（℉）
Fahrenheit
（℉）
Fahrenheit
（℉）
Celsius
Celsius
（℃）
（℃）
Fahrenheit
display
temperature
（℉）
Fahrenheit
display
temperature
（℉）
Fahrenheit
（℉）
Fahrenheit
（℉）
Celsius
Celsius
（℃）
（℃）
Appendix 2: Conguration of Connection Pipe
1.Standard length of connection pipe
● 16.4ft,24.6ft, 26.2ft.
2.Min. length of connection pipe is 9.84ft.
3.Max. length of connection pipe and max. high difference.（More details please refer to the specications.)
4.The additional refrigerant oil and refrigerant charging required after prolonging connection pipe
● After the length of connection pipe is prolonged for 32.8ft at the basis of standard length, you should add 5ml of refrigerant oil for
each additional 16.4ft of connection pipe.
● The calculation method of additional refrigerant charging amount (on the basis of liquid pipe):
● When the length of connection pipe is above 16.4ft, add refrigerant according to the prolonged length of liquid pipe. The additional
refrigerant charging amount per meter is different according to the diameter of liquid pipe. See the following sheet.
● Additional refrigerant charging amount = prolonged length of liquid pipe X additional refrigerant charging amount per meter
Additional refrigerant charging amount for R32
Diameter of connection pipe Outdoor unit throttle
Liquid pipe(mm) Gas pipe(mm) Cooling only,
cooling and heating(g / m)
Ф6 Ф9.5 or Ф12 16 12 16
Ф6 or Ф9.5 Ф16 or Ф19 40 12 40
Ф12 Ф19 or Ф22.2 80 24 96
Ф16 Ф25.4 or Ф31.8 136 48 96
Ф19 / 200 200 200
Ф22.2 / 280 280 280
Note: The additional refrigerant charging amount in Sheet 2 is recommended value, not compulsory.
Cooling only
(g / m)
Cooling and heating
(g/m)
54
Page 50
Service Manual
The length is equal
s
Smooth surface
Downwards
Pipe
Shaper
Pipe
Pipe
Appendix 3: Pipe Expanding Method
Note:
Improper pipe expanding is the main cause of refrigerant leakage.Please
expand the pipe according to the following steps:
A:Cut the pip
● Conrm the pipe length according to the distance of indoor unit and outdoor unit.
● Cut the required pipe with pipe cutter.
B:Remove the burrs
● Remove the burrs with shaper and prevent the burrs from getting into the pipe.
C:Put on suitable insulating pipe
D:Put on the union nut
● Remove the union nut on the indoor connection pipe and outdoor valve; install
the union nut on the pipe.
E:Expand the port
● Expand the port with expander.
Note:
● "A" is different according to the diameter, please refer to the sheet below:
Outer diameter(inch)
Max Min
A(inch)
Ф0.23 - 0.25 (1/4") 0.051 0.028
Ф9.52 (3/8") 0.063 0.039
Ф0.37 - 0.5 (1/2") 0.071 0.039
Ф0.63 (5/8") 0.095 0.087
Union pipe
Expander
Pipe cutter
Leaning Uneven Burr
Hard
mold
Pipe
F:Inspection
● Check the quality of expanding port. If there is any blemish, expand the
port again according to the steps above.
Improper expanding
damaged
leaning
surface
crack uneven
thicknes
55
Page 51
Service Manual
Appendix 4: List of Resistance for Temperature Sensor
Resistance Table of Ambient Temperature Sensor for Indoor and Outdoor Units(15K)
Temp(oC) Resistance(kΩ) Temp(oC) Resistance(kΩ) Temp(oC) Resistance(kΩ) Temp(oC) Resistance(kΩ)
-19 138.1 20 18.75 59 3.848 98 1.071
-18 128.6 21 17.93 60 3.711 99 1.039
-17 121.6 22 17.14 61 3.579 100 1.009
-16 11 5 23 16.39 62 3.454 101 0.98
-15 108.7 24 15.68 63 3.333 102 0.952
-14 102.9 25 15 64 3.217 103 0.925
-13 97.4 26 14.36 65 3.105 104 0.898
-12 92.22 27 13.74 66 2.998 105 0.873
-11 87.35 28 13.16 67 2.896 106 0.848
-10 82.75 29 12.6 68 2.797 107 0.825
-9 78.43 30 12.07 69 2.702 108 0.802
-8 74.35 31 11.57 70 2.611 109 0.779
-7 70.5 32 11.09 71 2.523 110 0.758
-6 66.88 33 10.63 72 2.439 111 0.737
-5 63.46 34 10.2 73 2.358
-4 60.23 35 9.779 74 2.28 11 3 0.697
-3 57.18 36 9.382 75 2.206 114 0.678
-2 54.31 37 9.003 76 2.133 115 0.66
-1 51.59 38 8.642 77 2.064 116 0.642
0 49.02 39 8.297 78 1.997 117 0.625
1 46.6 40 7.967 79 1.933 118 0.608
2 44.31 41 7.653 80 1.871 119 0.592
3 42.14 42 7.352 81 1.811 120 0.577
4 40.09 43 7.065 82 1.754 121 0.561
5 38.15 44 6.791 83 1.699 122 0.547
6 36.32 45 6.529 84 1.645 123 0.532
7 34.58 46 6.278 85 1.594 124 0.519
8 32.94 47 6.038 86 1.544 125 0.505
9 31.38 48 5.809 87 1.497 126 0.492
10 29.9 49 5.589 88 1.451 127 0.48
11 28.51 50 5.379 89 1.408 128 0.467
12 27.18 51 5.197
13 25.92 52 4.986 91 1.322 130 0.444
14 24.73 53 4.802 92 1.282 131 0.433
15 23.6 54 4.625 93 1.244 132 0.422
16 22.53 55 4.456 94 1.207 133 0.412
17 21.51 56 4.294 95 1.171 134 0.401
18 20.54 57 4.139 96 1.136 135 0.391
19 19.63 58 3.99 97 1.103 136 0.382
90 1.363 129 0.456
112 0.717
56
Page 52
Service Manual
Resistance Table of Tube Temperature Sensors for Indoor and Outdoor (20K)
Temp(oC) Resistance(kΩ) Temp(oC) Resistance(kΩ) Temp(oC) Resistance(kΩ) Temp(oC) Resistance(kΩ)
-19 181.4 20 25.01 59 5.13 98 1.427
-18 171.4 21 23.9 60 4.948 99 1.386
-17 162.1 22 22.85 61 4.773 100 1.346
-16 153.3 23 21.85 62 4.605 101 1.307
-15 145 24 20.9 63 4.443 102 1.269
-14 137.2 25 20 64 4.289 103 1.233
-13 129.9 26 19.14 65 4.14 104 1.198
-12 123 27 18.13 66 3.998 105 1.164
-11 116.5 28 17.55 67 3.861 106 1.131
-10 110.3 29 16.8 68 3.729 107 1.099
-9 104.6 30 16.1 69 3.603 108 1.069
-8 99.13 31 15.43 70 3.481 109 1.039
-7 94 32 14.79 71 3.364 110 1.01
-6 89.17 33 14.18 72 3.252 111 0.983
-5 84.61 34 13.59 73 3.144 112 0.956
-4 80.31 35 13.04 74 3.04 113 0.93
-3 76.24 36 12.51 75 2.94 114 0.904
-2 72.41 37 12 76 2.844 115 0.88
-1 68.79 38 11.52 77 2.752 116 0.856
0 65.37 39 11.06 78 2.663 117 0.833
1 62.13 40 10.62 79 2.577 118 0.811
2 59.08 41 10.2 80 2.495 119 0.77
3 56.19 42 9.803 81 2.415 120 0.769
4 53.46 43 9.42 82 2.339 121 0.746
5 50.87 44 9.054 83 2.265 122 0.729
6 48.42 45 8.705 84 2.194 123 0.71
7 46.11 46 8.37 85 2.125 124 0.692
8 43.92 47 8.051 86 2.059 125 0.674
9 41.84 48 7.745 87 1.996 126 0.658
10 39.87 49 7.453 88 1.934 127 0.64
11 38.01 50 7.173 89 1.875 128 0.623
12 36.24 51 6.905 90 1.818 129 0.607
13 34.57 52 6.648 91 1.736 130 0.592
14 32.98 53 6.403 92 1.71 131 0.577
15 31.47 54 6.167 93 1.658 132 0.563
16 30.04 55 5.942 94 1.609 133 0.549
17 28.68 56 5.726 95 1.561 134 0.535
18 27.39 57 5.519 96 1.515 135 0.521
19 26.17 58 5.32 97 1.47 136 0.509
57
Page 53
Service Manual
Resistance Table of Discharge Temperature Sensor for Outdoor(50K)
GREE ELECTRIC APPLIANCES, INC. OF ZHUHAI
Add: West Jinji Rd, Qianshan, Zhuhai,Guangdong, China, 519070
Tel: (+86-756) 8522218
Fax: (+86-756) 8669426
E-mail: gree@gree.com.cn www.gree.com
HONG KONG GREE ELECTRIC APPLIANCES SALES LIMITED
Add: Unit 2612,26/F.,Miramar Tower 132 Nathan Road,TST,Kowloon,HK
Tel: (852) 31658898 Fax: (852) 31651029
For product improvement, specifications and appearance in this manual are subject to change without prior notice.
Temp(oC) Resistance(kΩ) Temp(oC) Resistance(kΩ) Temp(oC) Resistance(kΩ) Temp(oC) Resistance(kΩ)
-29 853.5 10 98 49 18.34 88 4.75
-28 799.8 11 93.42 50 17.65 89 4.61
-27 750 12 89.07 51 16.99 90 4.47
-26 703.8 13 84.95 52 16.36 91 4.33
-25 660.8 14 81.05 53 15.75 92 4.20
-24 620.8 15 77.35 54 15.17 93 4.08
-23 580.6 16 73.83 55 14.62 94 3.96
-22 548.9 17 70.5 56 14.09 95 3.84
-21 516.6 18 67.34 57 13.58 96 3.73
-20 486.5 19 64.33 58 13.09 97 3.62
-19 458.3 20 61.48 59 12.62 98 3.51
-18 432 21 58.77 60 12.17 99 3.41
-17 407.4 22 56.19 61 11.74 100 3.32
-16 384.5 23 53.74 62 11.32 101 3.22
-15 362.9 24 51.41 63 10.93
-14 342.8 25 49.19 64 10.54 103 3.04
-13 323.9 26 47.08 65 10.18 104 2.96
-12 306.2 27 45.07 66 9.83 105 2.87
-11 289.6 28 43.16 67 9.49 106 2.79
-10 274 29 41.34 68 9.17 107 2.72
-9 259.3 30 39.61 69 8.85 108 2.64
-8 245.6 31 37.96 70 8.56 109 2.57
-7 232.6 32 36.38 71 8.27 110 2.50
-6 220.5 33 34.88 72 7.99 111 2.43
-5 209 34 33.45 73 7.73 112 2.37
-4 198.3 35 32.09 74 7.47 113 2.30
-3 199.1 36 30.79 75 7.22 114 2.24
-2 178.5 37 29.54 76 7.00 115 2.18
-1 169.5 38 28.36 77 6.76 116 2.12
0 161 39 27.23 78 6.54 11 7 2.07
1 153 40 26.15 79 6.33 11 8 2.02
2 145.4 41 25.11
3 138.3 42 24.13 81 5.93 120 1.91
4 131.5 43 23.19 82 5.75 121 1.86
5 125.1 44 22.29 83 5.57 122 1.82
6 119.1 45 21.43 84 5.39 123 1.77
7 113.4 46 20.6 85 5.22 124 1.73
8 108 47 19.81 86 5.06 125 1.68
9 102.8 48 19.06 87 4.90 126 1.64
80 6.13 11 9 1.96
102 3.13
58
Page 54
PARTS GUIDE
MULTI VARIABLE SERIES
MV-E36BI, MV-E42BI
Page 55
MV-E36BI
Page 56
No Description Part Code Note Qty
Price Code
MODEL: MV-E36BI Outdoor unit
1 Front Grill 26905200121 1 AN
2 Handle 26233053 1 AB
3 Front Side Plate Sub-Assy 01305508 1 AR
4 Front Side Plate 01305065P 1 AQ
5 Insulated Board (Cover of Electric Box) 20113003 1 AF
6 Cabinet 01435007P 1 AY
7 Axial Flow Fan 10335010 1 AR
8 Fan Motor 1570280201 1 BL
9 Motor Support Assy 000046000051 1 BM
10 Reactor 43130186 2 AU
11 Compressor and Fittings 009001000231 1 BT
12 Compressor Gasket 009012000004 3 AE
13 Drainage Joint 26113009 1 AD
14 Sensor Sub-assy 39004100006G 1 AM
15 Compressor Overload Protector(External) 00180030 1 AQ
16 Bolt 70210051 2 AB
17 Electric Expand Valve Fitting 4304413234 1 AR
18 Strainer A 07210022 2 AE
19 Bidirection Strainer 07220016 1 AR
20 Cut off Valve 07130239 1 AK
21 Electric Expand Valve Fitting 4304413235 1 AR
22 Right Side Plate 01314100027P 1 AV
23 Valve Cover 26904100053 1 AT
24 Wiring Clamp 26115004 1 AB
25 Cut off Valve 071302391 1 AM
26 Electric Expand Valve Fitting 4304413237 1 AR
27 Rear Grill 01574100007 1 AM
28 Condenser Assy 01163780 1 CB
29 Condenser support plate 01895309 1 AG
30 Valve Support Assy 030163000007 1 BN
31 Electronic Expansion Valve 07334447 2 AU
32 Electric Expand Valve Fitting 4304413208 1 AU
33 4-Way Valve Assy 030152000372 1 BB
34 Top Cover Sub-Assy 01264100028 1 AU
35 Pressure Protect Switch 4602001539 1 AK
36 Left Handle none 0 37 Left Side Plate 01305064P 1 AR
38 Radiator 49018000077 1 AX
39 Electric Box 26904100013 1 AM
40 Main Board 300027000527 1 BQ
41 communication Interface Board none 0 42 Cable Cross Loop 76510021 2 AB
43 Magnetic Ring 49010109 3 AC
44 Insulation Gasket 70410503 2 AA
45 Wire Clamp 71010102 1 AA
46 Socket none 0 47 Terminal Board 422000060015 1 AE
48 Terminal Board 422000060012 1 AG
49 Wire Clamp 71010103 4 AA
50 Sensor Sub-assy 39004100005G 1 AQ
51 Electric Box Assy 100002003334 1 BT
The data are subject to change without notice.
Page 57
MV-E42BI
Page 58
No Description Part Code Note Qty
Price Code
MODEL: MV-E42BI Outdoor unit
1 Front Grill 26905200121 1 AN
2 Handle 26233053 1 AB
3 Front Side Plate Sub-Assy 01305508 1 AR
4 Front Side Plate 01305065P 1 AQ
5 Insulated Board (Cover of Electric Box) 20113003 1 AF
6 Cabinet 01435007P 1 AY
7 Axial Flow Fan 10335010 1 AR
8 Fan Motor 1570280201 1 BL
9 Motor Support Assy 000046000051 1 BM
10 Reactor 43130186 2 AU
11 Compressor and Fittings 009001000231 1 BT
12 Compressor Gasket 009012000004 3 AE
13 Drainage Joint 26113009 1 AD
14 Sensor Sub-assy 39004100006G 1 AM
15 Compressor Overload Protector (External) 00180030 1 AQ
16 Bolt 70210051 2 AB
17 Electric Expand Valve Fitting 4304413222 1 AQ
18 Strainer A 07210022 2 AE
19 Bidirection Strainer 07220016 1 AR
20 Cut off Valve 07130239 1 AK
21 Electric Expand Valve Fitting 4304413234 1 AR
22 Right Side Plate 01314100027P 1 AV
23 Valve Cover 26904100053 1 AT
24 Wiring Clamp 26115004 1 AB
25 Cut off Valve 071302391 1 AM
26 Electric Expand Valve Fitting 4304413235 1 AR
27 Rear Grill 01574100007 1 AM
28 Condenser Assy 01163780 1 CB
29 Condenser support plate 01895309 1 AG
30 Valve Support Assy 030163000002 1 BQ
31 Electric Expand Valve Fitting 4304413237 1 AR
32 Electronic Expansion Valve 07334447 2 AU
33 Electric Expand Valve Fitting 4304413208 1 AU
34 4-Way Valve Assy 030152000372 1 BB
35 Top Cover Sub-Assy 01264100028 1 AU
36 Pressure Protect Switch 4602001539 1 AK
37 Left Handle none 0 38 Left Side Plate 01305064P 1 AR
39 Radiator 49018000077 1 AX
40 Electric Box 26904100013 1 AM
41 Main Board 300027000528 1 BQ
42 Communication Interface Board none 0 43 Cable Cross Loop 76510021 2 AB
44 Magnetic Ring 49010109 2 AC
45 Insulation GasketC 70410523 1 AA
46 Wire Clamp 71010103 5 AA
47 Socket none 0 48 Terminal Board 422000060015 1 AE
49 Terminal Board 422000060012 1 AG
50 Wire Clamp 71010102 1 AA
51 Sensor Sub-assy 39004100007G 1 AR
52 Electric Box Assy 100002003335 1 BU
The data are subject to change without notice.
Page 59
Page 60
NOTE CONCERNING PROTECTION OF
ENVIRONMENT
This product must not be disposed of via normal household waste after its service life, but must be
taken to a collection station for the recycling of electrical and electronic devices. The symbol on the
product, the operating instructions or the packaging indicate such disposal procedures. The materials
are recyclable in accordance with their respective symbols. By means of re-use, material recycling or
any other form of recycling old appliances you are making an important contribution to the protection
of our environment. Please ask your local council where your nearest disposal station is located.
INFORMATION CONCERNING USED REFRIGERANT
MEDIUM
This unit is containing fluorinated gases included in the Kyoto protocol. The maintenance and the liquidation must
be carried out by qualified personnel.
Type of refrigerant: R32
The quantity of the refrigerant: please see the unit label.
The value GWP: 675 (1 kg R32 = 0,675 t CO2 eq)
GWP = Global Warming Potential
Appliance filled with flammable gas R32.
In case of quality problem or other please contact your local supplier or authorized service center.
Emergency number: 112
PRODUCER
SINCLAIR CORPORATION Ltd.
1-4 Argyll St.
London W1F 7LD
Great Britain
www.sinclair-world.com
This product was manufactured in China (Made in China).
REPRESENTATIVE
SINCLAIR EUROPE spol. s r.o.
Purkynova 45
612 00 Brno
Czech Republic
TECHNICAL SUPPORT
NEPA spol. s r.o.
Purkynova 45
612 00 Brno
Czech Republic
Tel.: +420 800 100 285
Fax: +420 541 590 124
www.sinclair-solutions.com
info@sinclair-solutions.com
Loading...