Sinclair MULTI VARIABLE SERIES User manual

MULTI VARIABLE SERIES
DUCT
MV-DxxBI
SERVICE MANUAL
EN


“Originalinstructions”
IMPORTANT NOTE:
Read this manual carefully before installing
or operating your new air conditioning
unit. Make sure to save this manual for
future reference.

Service Manual
Table of Contents
Part Ⅰ: Technical Information.......................................................................1
1. Summary......................................................................................................................1
2. Specications..........................................................................................................2
3. Outline Dimension Diagram........................................................................6
4. Refrigerant System Diagram......................................................................7
5. Electrical Part...........................................................................................................8
5.1 Wiring Diagram.................................................................................................................8
5.2 PCB Printed Diagram .......................................................................................................9
6. Function and Control......................................................................................10
6.1 Remote Controller Introduction .....................................................................................10
6.2 Brief Description of Modes and Functions......................................................................14
6.3 Wired Remote Controller XK19 ......................................................................................16
Part Ⅱ: Installation and Maintenance ................................................25
7. Indoor Unit Installation ................................................................................25
8. Maintenance............................................................................................................36
8.1 Error Code List ...............................................................................................................36
8.2 Troubleshooting for Main Malfunction ............................................................................37
9. Exploded View and Parts List .................................................................41
10. Removal Procedure.......................................................................................47

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Service Manual
1. Summary
Part Ⅰ: Technical Information
Indoor Unit
MV-D09BI
MV-D12BI
MV-D18BI
MV-D24BI
Remote Controller
YT1F(MOTO)

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Service Manual
Parameter Unit Value
Model MV-D09BI MV-D12BI
Product Code CN210N0150 CN210N0160
Power
Supply
Rated Voltage V~ 220-240 220-240
Rated Frequency Hz 50 50
Phases 1 1
Cooling Capacity W 2500 3500
Heating Capacity W 2800 3850
Air ow volume(SH/H/M/L/SL) m3/h -/450/350/280/- -/550/400/300/-
Dehumidifying Volume L/h 0.8 1.4
Fan Type Centrifugal Centrifugal
Fan Diameter-height mm Φ139.45-134.62 Φ139.45-134.62
Fan Motor Speed rpm 950/750/650/550 1000/920/780/720
Fan Motor Power Output W 40 30
Fan Motor Power Input W 75 65
Motor Full Load Amp(FLA) A 0.34 0.34
Fan Motor Capacitor μF 3.0 3.0
Evaporator Material Inner Groove Copper -Aluminum Inner Groove Copper -Aluminum
Evaporator Pipe Diameter mm Φ7Φ7
Evaporator Number of Rows-Fin Pitch mm 2-1.6 3-1.6
Evaporator Length(L)XHeight(H)XWidth(W) mm 527X209.55X25.4 527X209.55X25.4
Fuse Current A 3.15 3.15
Sound Pressure Level(SH/H/M/L/SL) dB (A) 37/34/31/47/41 39/35/32/49/42
Sound Power Level(SH/H/M/L/SL) dB (A) 47/44/41/57/51 49/45/42/59/52
Dimension of Outline(LXWXH) mm 700X615X200 700X615X200
Dimension of Carton Box(LXWXH) mm 890X740X290 890X740X290
Dimension of Package(LXWXH) mm 893X743X305 893X743X305
Net Weight kg 21 22
Gross Weight kg 26 28
Liquid pipe mm Φ6 Φ6
Gas Pipe(to indoor unit) mm Φ9.52 Φ9.52
2. Specications
2.1 Specication Sheet
The above data is subject to change without notice. Please refer to the nameplate of the unit.

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Service Manual
Parameter Unit Value
Model MV-D18BI
Product Code CN210N0170
Power
Supply
Rated Voltage V~ 220-240
Rated Frequency Hz 50
Phases 1
Cooling Capacity W 5000
Heating Capacity W 5500
Air ow volume(SH/H/M/L/SL) m3/h -/700/600/500/-
Dehumidifying Volume L/h 1.8
Fan Type Centrifugal
Fan Diameter-height mm Φ139.45-134.62
Fan Motor Speed rpm 1140/955/755/670
Fan Motor Power Output W 40
Fan Motor Power Input W 80
Motor Full Load Amp(FLA) A 0.51
Fan Motor Capacitor μF 3.0
Evaporator Material Inner Groove Copper -Aluminum
Evaporator Pipe Diameter mm Φ7
Evaporator Number of Rows-Fin Pitch mm 3-1.6
Evaporator Length(L)XHeight(H)XWidth(W) mm 725X209.55X38.1
Fuse Current A 3.15
Sound Pressure Level(SH/H/M/L/SL) dB (A) 41/33/51/43/-
Sound Power Level(SH/H/M/L/SL) dB (A) 51/43/61/53/-
Dimension of Outline(LXWXH) mm 900X615X200
Dimension of Carton Box(LXWXH) mm 1120X740X290
Dimension of Package(LXWXH) mm 1123X743X305
Net Weight kg 26
Gross Weight kg 32
Liquid pipe mm Φ6
Gas Pipe(to indoor unit) mm Φ12
The above data is subject to change without notice. Please refer to the nameplate of the unit.
MV-D24BI
CN210N0130
220-240
50
1
7100
8000
-/1000/750/550/-
2.5
Centrifugal
Φ139.45-134.62
1185/1070/910/810
80.00
110.00
0.64
3.50
Inner Groove Copper -Aluminum
Φ7
3-1.6
925X209.55X38.1
3.15
42/34/52/44/-
52/44/62/55/-
1100X615X200
1320X740X290
1323X743X305
30
40
Φ9.52
Φ16

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Service Manual
Notes:
a. The rated cooling capacity data is measured under the following work condition: Indoor Temperature is 27ć
DB, 19ćWB. Outdoor Temperature is 35ćDB. The rated heating capacity data is measured under the following
work condition: Indoor Temperature is 20ćDB. Outdoor Temperature is 7ćDB, 6ćWB.
b. The data will change with the change of products. Refer to those parameters listed on nameplate.
c. Noise was tested in semi-silenced room, so the actual noise value will be a little higher for change of ambient.
Working Temperature Range
Sorts etatsedisroodnI
Dry bulb temp. ć Wet bulb temp. ć
Rated Cooling 27 19
Max. cooling 32 23
Min. cooling 21 15
Rated Heating 20 15
Max. heating 27 —
Min. heating 20 15

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Service Manual
3. Outline Dimension Diagram
Unit:mm
Item
Model
A B C D E F G H I J
MV-D09BI
742 491 662 620 700 615 782 156 200 635
MV-D12BI
MV-D18BI 942 491 862 820 900 615 982 156 200 635
1142 491 1062 1020 1100 615 1182 156 200 635
MV-D24BI

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Service Manual
4. Refrigerant System Diagram
Schematic Diagram of Super Free Match Series Inverter Heat Pump Multi System
The units start to work once the power is switched on.
During the cooling operation, the low temperature, low pressure refrigerant gas from the heat exchanger of
each indoor unit gets together and then is taken into the compressor to be compressed into high temperature, high
pressure gas, which will soon go to the heat exchanger of the outdoor unit to exchange heat with the outdoor air
and then is turned into refrigerant liquid. After passing through the BU module, the temperature and pressure of
the refrigerant liquid will further decrease and then go the main valve. After that, it will be divided and go to the
heat exchanger of each indoor unit to exchange heat with the air which needs to be conditioned. Consequently, the
refrigerant liquid become low temperature, low pressure refrigerant gas again. Such a refrigeration cycle goes
round and round to achieve the desired refrigeration purpose.
During the heating operation, the four-way valve is involved to make the refrigeration cycle run reversely.
The refrigerant radiates heat in the heat exchanger of the indoor unit (so do the electric heating devices) and
absorb heat in the heat exchanger of the outdoor unit for a heat pump heating cycle so as to achieve the desired
heating purpose.

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Service Manual
5. Electrical Part
5.1 Wiring Diagram
● Indoor Unit
● Instruction
Symbol Symbol Color Symbol Symbol Color Symbol Name
WH White GN Green CAP Jumper cap
YE Yellow BN Brown COMP Compressor
RD Red BU Blue Grounding wire
YEGN Yellow/Green BK Black / /
VT Violet OG Orange / /
Note: Jumper cap is used to determine fan speed and the swing angle of horizontal lover for this model.
63625690
These circuit diagrams are subject to change without notice, please refer to the one supplied with the unit.
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Service Manual
5.2 PCB Printed Diagram
No. Name
1Fan terminal 7Communication terminal for indoor unit and outdoor unit
2Water pump terminal 8Liquid level switch inspection
3Live wire 9 Output terminal of transformer
4Neutral wire 10 Ambient temperature sensor
5Fuse 11 Tube temperature sensor
6Transformer input 12 Wired controller
●Top view
●Bottom view
1
23 45 6
78
910
1112

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Service Manual
6. Function and Control
6.1 Remote Controller Introduction
operation mode
auto mode
cool mode
dry mode
fan mode
heat mode
clock
sleep mode
Note:
set fan speed
send signal
X-fan mode
ventilation operation
set temperature
turbo mode
set time
TIMER ON/TIMER
OFF
child lock
light
swing
Temp. display type
:set temp.
:outdoor ambient temp.
:indoor ambient
temp.
health function
I feel
2
3
6
8
11
13
14
1
7
4
5
9
10
12
15
This is a general use remote controller
, it could be used for the air conditioners with multifunction; For some function, which the model
don't have, if press the corresponding button on the remote controller that the unit will keep the original running status
.

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Service Manual
AUTO COOL DRY FAN HEAT

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Service Manual
(horizontal louvers
stops at current position)
no display
no display

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Service Manual
Sketch map for
replacing batteries

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Service Manual
6.2 Brief Description of Modes and Functions
1.Basic function of system
(1)Cooling mode
(1) Under this mode, fan and swing operates at setting status. Temperature setting range is 16~30ºC.
(2) During malfunction of outdoor unit or the unit is stopped because of protection, indoor unit keeps original operation status.
(2)Drying mode
(1) Under this mode, fan operates at low speed and swing operates at setting status. Temperature setting range is 16~30ºC.
(2) During malfunction of outdoor unit or the unit is stopped because of protection, indoor unit keeps original operation status.
(3) Protection status is same as that under cooling mode.
(4) Sleep function is not available for drying mode.
(3)Heating mode
(1) Under this mode, Temperature setting range is 16~30ºC.
(2) Working condition and process for heating mode:
When turn on the unit under heating mode, indoor unit enters into cold air prevention status. When the unit is stopped or at OFF status,
and indoor unit has been started up just now, the unit enters into residual heat-blowing status.
(4)Working method for AUTO mode:
1.Working condition and process for AUTO mode:
a.Under AUTO mode, standard heating Tpreset=20ºC and standard cooling Tpreset=25ºC. The unit will switch mode automatically
according to ambient temperature.
2.Protection function
a. During cooling operation, protection function is same as that under cooling mode.
b. During heating operation, protection function is same as that under heating mode.
3. Display: Set temperature is the set value under each condition. Ambient temperature is (Tamb.-Tcompensation) for heat pump unit
and Tamb. for cooling only unit.
4. If theres I feel function, Tcompensation is 0. Others are same as above.
(5)Fan mode
Under this mode, indoor fan operates at set fan speed. Compressor, outdoor fan, 4-way valve and electric heating tube stop operation.
Indoor fan can select to operate at high, medium, low or auto fan speed. Temperature setting range is 16~30ºC.
2. Other control
(1) Buzzer
Upon energization or availably operating the unit or remote controller, the buzzer will give out a beep.
(2) Auto fan
Heating mode: During auto heating mode or normal heating ode, auto fan speed will adjust the fan speed automatically according to
ambient temperature and set temperature.
(3) Sleep
After setting sleep function for a period of time, system will adjust set temperature automatically.
(4) Timer function:
General timer and clock timer functions are compatible by equipping remote controller with different functions.
(5) Memory function
memorize compensation temperature, off-peak energization value.
Memory content: mode, up&down swing, light, set temperature, set fan speed, general timer (clock timer cant be memorized).
After power recovery, the unit will be turned on automatically according to memory content.
(6)Refrigerant recovery function:
(1) Enter refrigerant recycling function
Within 5min after energizing (unit ON or OFF status is ok), continuously press LIGHT button for 3 times within 3s to enter refrigerant
recycling mode; Fo is displayed and refrigerant recycling function is started. At this moment, the maintenance people closes liquid
valve. After 5min, stick the thimble of maintenance valve with a tool. If there is no refrigerant spraying out, close the gas valve
immediately and then turn off the unit to remove the connection pipe.

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Service Manual
(2) Exit refrigerant recycling function
After entering refrigerant recycling mode, when receive any remote control signal or enter refrigerant recycling mode for 25min, the unit will
exit refrigerant recycling mode automatically If the unit is in standby mode before refrigerant recycling, it will be still in standby mode after
nishing refrigerant recycling; if the unit is in ON status before refrigerant recycling, it will still run in original operation mode.
(7)Off-peak energization function:
Adjust compressors minimum stop time. The original minimum stop time is 180s and then we change to:
The time interval between two start-ups of compressor cant be less than 180+T s(0≤T≤15). T is the variable of controller. Thats to say
the minimum stop time of compressor is 180s~195s. Read-in T into memory chip when refurbish the memory chip each time. After power
recovery, compressor can only be started up after 180+T s at least.
(8) X-fan mode
When X-fan function is turned on, after turn off the unit, indoor fan will still operate at low speed for 2min and then the complete unit will be
turned off. When x-fan function is turned off, after turn off the unit, the complete unit will be turned off directly.
(9) 8º heating function
Under heating mode, you can set 8º heating function by remote controller. The system will operate at 8ºset temperature.
(10) Turbo fan control function
Set turbo function under cooling or heating mode to enter into turbo fan speed. Press fan speed button to cancel turbo wind.
No turbo function under auto, dry or fan mode.

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Service Manual
6.3 Wired Remote Controller XK19

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Service Manual

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Service Manual