Normal Operation (Cool Mode) - Low Outside Air Temperature (Roughly Below 20°C) - Toshiba MMY-MAP1004HT5P Service Manual

4-2. Normal Operation (COOL Mode) - Low Outside Air
Temperature (Roughly Below 20°C)
H e a d r e u i n
PMV1
PMV2
TE1
PMV4
TE2
Pressure sensor
(high pressure)
SV3D
TL
SV
SV41
SV
Liquid tank
TD1
Compressor
1
SV3A
PMV
TC2
TCJ
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".
( t M M - Y M A P 1 6 0 4 ) *
FM
TO
4-Way valve
SV6
SV
SV
SV2
O.S.
Accumulator
SV
SV
SV42
SV3C
SV43
HPS HPS
TD2
TD3
HPS
TK4
Compressor
Compressor
2
3
TK2
TK1
TK3
TK5
SV3E
SV SV3F
SV3B
SV
Balance pipe
Liquid pipe
Gas pipe
Gas pipe
Liquid pipe
PMV
TC1
TC2
TCJ
PMV1
PMV2
TS1
TL
Pressure sensor
(low pressure)
Liquid tank
PMV
TC1
TC2
TCJ
Indoor unit
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.)
– 59 –
F l o o l w r e u i n ( t M M - Y M A P 1 2 0
FM
TE1
SV
SV5
4-Way valve
Pressure sensor
Pressure sensor
(low pressure)
(high pressure)
SV
SV2
SV3D O.S.
SV
SV41
SV SV
TD1 TD2
HPS HPS
SV3C
A3
TK4
Compressor
Compressor
1
2
TK1 TK2
SV3E
TK5
SV3A
SV SV3B
PMV
TC1
TC2
TCJ
4 ) *
TO
TS1
SV42
Accumulator
TC1