Explanation Of Functional Parts - Toshiba MiNi-SMMS MCY-MAP0501HT Service Manual

4-2. Explanation of Functional Parts

Functional part name
Solenoid valve SV2
SV4
SV5
Capillary tube 1
2
4-way valve
PMV (Pulse motor valve)
Temp. sensor TD
TS
TE
TL
TO
High-pressure sensor
Low-pressure sensor
Compressor case heater
Accumulator case heater
1) Low-pressure release function
2) High-pressure release function
3) Gas balance function during off time
4) Hot gas bypass into accumulator
1) High-pressure release function
2) Low-pressure release function
1) Preventive function for high-pressure rising in heating operation
ID : Ø1.5, Length : 200 mm
ID : Ø2.2, Length : 100 mm
1) Cooling/heating exchange
2) Reverse defrost
1) Super heat control function in all heating and majority heating
operation
2) Sub-cool adjustment function in cooling operation
1) Protection of compressor discharge temp. Used for release
1) Controls super heat in heating operation
1) Controls defrost in heating operation
2) Controls outdoor fan in heating operation
1) Detects under cool in cooling operation
1) Detects outside temperature
1) Detects high-pressure and controls compressor capacity
2) Detects high-pressure in cooling operation and controls the fan in low
ambient cooling operation
1) Detects low-pressure in cooling operation and controls compressor
capacity
2) Detects low-pressure in heating operation and controls the super heat
1) Prevents liquid accumulation to compressor
1) Prevents liquid accumulation to accumulator
Functional outline
52
Connector
CN312 (White)
CN311 (Blue)
CN310 (White)
CN317 (Blue)
CN300 (White)
CN502 (White)
CN504 (White)
CN505 (Green)
CN521 (White)
CN507 (Yellow)
CN501 (Red)
CN500 (White)
CN316 (White)
CN321 (Red)