56
Part name
Sign
Function
Data
Remark
Compressor
/
"Capacity control, to meet indoor load through
frequency adjustment."
ANB52FKQMT:
0.302Ω
20°C
ANB66FVAMT: 0,23Ω
ANB78FVAMT: 0,23Ω
Pressure switch
HPs1/2
Protection control for high pressure
4.15Mpa, OFF setting
Pressure sensor
Pd1
In heating , compressor frequency adjustment and
protection control for abnormal pressure
0~4.15MPa
Ps
In cooling , compressor frequency adjustment and
protection control for abnormal pressure
0~1.7MPa
Electronic
expansion
valve
LEVa1, 2 Refrigerant flow control in heating
8-14HP:Ø3.0
16-22HP:Ø4.0
LEVb
Sub-cooling valve, in cooling, be controlled as the
Tliqsc target.
8-22HP:Ø2.5
Solenoid valve
SV1
1. Balance between high and low pressures when the
compressor starts and stops;
AC220V
2A
2. Protection to prevent high and low pressures.
SV3
Started when the compressor discharging
temperature and oil temperature are too high to carry
out temperature reduction by refrigerant spraying.
AC220V
2A
SV10
Outdoor unit SV10 for oil suction starts during oil
balance; for pressure relief to prevent explosion of
pipe group.
AC220V
2A
SV9
The outdoor unit for oil discharging starts SV9 for oil
balancing during oil balance among modules.
AC220V
2A
Four-way valve
4WV1
Switch between cooling and heating
AC220V Power on
during heating and
power off during
cooling or defrosting.
4WV2
Switch between cooling and heating
4WV3
Change over between cooling and heating
AC220V, power on in
heating; power off in
cooling or defrosting
Unloading valve DPC
Avoid the oil equalization circuit being blocked by
liquid seal.
Opened when the
circuit’s pressure is
over 4.1MPa
Temperature
sensor
Toil1/2
To detect the temperature of refrigeration lubricant at
the compressor bottom.
"R (80°C ) = 50K
B (25/80°C )=4450K
Tsacc
To detect the inlet temperature of gas-liquied
seperator
Td1/Td2 To detect the top temperature of inverter/ON-OFF
compressor.
Tdef1
Tdef2
To detect the frosting of outdoor heat exchanger.
R(25°C )=10K,
B(25°C /50°C ) =3700
K
Toci1
Toci2
To detect the temperature of condenser main gas
pipe to control LEVa1, 2 during heating.
Tao
To detect ambient temperature and control the initial
air speed and defrosting conditions.
Tsco
Detect the branch outlet pipe’s temp. of heat
regenerator in order to control LEVb during cooling.
Tliqsc
Detect the main outlet pipe’s temp. of heat
regenerator in order to control LEVb during cooling.
CH1/2
Used to heat the compressor oil in the inverter
compressor.
33W, 220V, 2 pieces/
compressor
Summary of Contents for MRV 5-RC VP1-112B
Page 1: ...MRV 5 RC Service Manual SYJS 03 2019REV A Edition 2019 03 ...
Page 3: ......
Page 55: ...52 AV08 10 12 14IMVURA 4 Center of gravity x X 347 9587 y 471 5454 z 725 6683 y z ...
Page 56: ...53 AV16 18 20 22IMVURA x X 650 5962 y 380 7255 z 706 5342 y z ...
Page 106: ...103 2 Dimension 4 19 200 60 25 25 25 249 108 232 84 69 388 73 82 65 103 177 4 44 4 35 277 ...
Page 116: ...113 2 Preparation before installation ...
Page 162: ...159 One by one valve box PCB code 0151800186A 2 Valve box PCB photo and dip switch setting ...
Page 165: ...162 One by four valve box PCB code 0151800466 ...