Toshiba MMY-MAP0804HT5P - Normal Operation (COOL Mode) - Low Outside Air Temperature (Roughly below 20°C)

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TL
PMV1
TD2
TS1
SV2
TE1
FM
SV3D
PMV2
TK2
SV3B
TK1
SV3A
HPS HPS
HPS
TD1
TK4
SV3E
TK5
SV41
SV42
PMV4
TE2
TD3
SV43
TK3
SV6
TO
SV3F
SV3C
SV
SV
SV
SV
SV
SV
SV
SV
SV
SV
SV
TL
PMV1
TD2
TS1
SV2
SV5
TE1
FM
SV3D
PMV2
TK2
SV3B
TK1
SV3A
HPS HPS
TD1
TK4
SV3E
TK5
SV41
SV42
A3
SV3C
TO
SV
SV
SV
SV
SV
SV
SV
SV
SV
TC2
TCJ
TC1
TC2
TCJ
TC1
TC2
TCJ
TC1
TC2
TCJ
TC1
PMV
PMV
PMV
PMV
)*4021PAM-YMM( tinu rewolloF)*4061PAM-YMM( tinu redaeH
4-Way valve
Pressure sensor
(high pressure)
O.S.
Pressure sensor
(low pressure)
Accumulator
Compressor
1
Compressor
2
Compressor
3
Liquid tank
Balance pipe
Liquid pipe
Gas pipe
Liquid pipe
Gas pipe
4-Way valve
Pressure sensor
(low pressure)
Pressure sensor
(high pressure)
O.S.
Liquid tank
Accumulator
Compressor
1
Compressor
2
Indoor unit
High-pressure gas or condensate liquid refrigerant
Evaporative gas refrigerant (low-pressure gas)
Normal refrigerant line
Note: The "header unit" is the outdoor unit to which the indoor-outdoor communication
line is connected. All other outdoor units are called "follower units".
Note: With a 14 or 16 HP outdoor unit, the main heat exchanger and sub-heat
exchanger may be switched over depending on the outside temperature and
air conditioning loads.
(The diagram shows a 28 HP system (16 HP + 12 HP) as an example.)
4-2. Normal Operation (COOL Mode) - Low Outside Air
Temperature (Roughly Below 20°C)