Explanation Of Functional Parts - Toshiba MMY-MAP0806HT8P Service Manual

Explanation of Functional Parts

F u n t c o i n l a p a t r n a m e
SV2
SV3A
SV3B
SV3C
SV3D
Solenoid valve
SV41
SV42
SV51
SV52
4-way valve
PMV1, 3
Pulese motor
valve
PMV4
Oil separator
TD1
TD2
TS1
TS3
TG1
TG2
Temp. Sensor
TE1
TE2
TK1,TK2
TK4,TK5
TL1,TL2
TL3
TO
High pressure
sensor
Pressure sensor
Low pressure
sensor
Compressor
case heater
Heater
Accumulator
case heater
B a a l n c e p p i e
High pressure switch High pressure SW 1
(4.15MPa) High pressure SW 2
F
(Hot gas bypass) (Connector CN311: White)
1) Low pressure release function
2) High pressure release function
3) Gas balance function during stop time
(Connector CN321: White)
1) Supplies oil reserved in the oil header during ON time.
(Connector CN321: White)
1) Returns oil supplied in the balance pipe to the compressor.
(Connector CN321: White)
1) Pressurizes oil reserved in the oil header during ON time.
(Connector CN322: White)
1) Reserves oil in the oil separator during OFF time.
2) Returns oil reserved in the oil separator to the compressor during ON time.
(Start assure valve of compressor)
(SV41 Connector CN312: Blue, SV42 Connector CN312: Blue.
1) For gas balance start
2) High pressure release function
3) Low pressure release function
(Connector CN314: White)
1) Gas injection function during hot gas defrost in heating operation
(Connector CN314: White)
1) Preventive function for high-pressure rising in heating operation
2) Gas injection function during hot fas defrost in heating operation
(Connector CN317:Blue)
1) Cooling/heating exchange
2) Reverse defrost
(PMV1 Connector CN300: White, PMV3 Connector CN302: Blue)
Super heat control function in heating operation
1)
Liquid line shut-down function while follower unit stops
2)
Subcool adjustment function in cooling operation
3)
Exchange function between main and sub exchangers in cooling operation
4)
(Connector CN303: Red)
1) Subcool adjustment function in cooling operation
Liquid bypass function for discharge temperature release (cooling bypass function)
2)
1) Prevention for rapid decreasing of oil (Decreases oil flowing to the cycle)
2) Reserve function of surplus oil
(TD1 Connector CN502: White, TD2 Connector CN503: Pink )
Protection of compressor discharge temp.
1)
Used for dischage temperature release
2)
(Connector CN505: White)
Controls PMV1 super heat in heating operation
1)
Protection of compressor
2)
(Connector CN903: Purple)
Controls PMV4 super heat in heating operation
1)
(TG1 Connector CN525: Blue, TG2 Connector CN526: White )
Controls PMV1 super heat in heating operation
1)
(TE1 Connector CN520: Green, TE2 Connector CN521: Red )
Controls defrost in heating operation
1)
Controls outdoor fan in heating operation
2)
(TK1 Connector CN531: Black, TK2 Connector CN532: Green, TK4 Connector CN534: Yellow,
TK5 Connector CN535: Red)
Judges oil level of the compressor
1)
(TL1 Connector CN523: White, TL2 Connector CN524: Gray, TL3 Connector CN902:
Pink)
Detects subcool in cooling operation
1)
(Connector CN507: Yellow)
Detects outside temperature
1)
(Connector CN501: Red)
1) Detects high pressure and controls compressor capacity
2) Detects high pressure in cooling operation, and controls the fan in low ambient cooling operation
3) Detects subcool in indoor unit in heating operation
(Connector CN500: White)
1) Detects low pressure in cooling operation and controls compressor capacity
2) Detects low pressure in heating operation, and controls the super heat
(Compressor 1 Connector CN331: White, Compressor 2 Connector CN332: Blue.
1) Prevents liquid accumulation to compressor
(Connector CN334: Red)
1) Prevents liquid accumulation to accumulator
) 1 O l i b a a l n c n i g n i e a c h o u d t o r o u n t i
(High pressure SW 1,2 Connector CN251: BLK)
1) Piping resisting pressure protection
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u n t c o i n l a o u l t n i e