Toshiba Two-Way Radio MMU-AP0091H Guia De Especificação
59
5-6. Defrost
(Note 1) SV4 on the stopped compressor is ON.
(Note 2) May be controlled.
Outdoor unit
Flow selector/Indoor unit
4-way valve
OFF
SV3A
OFF
Cooling thermo.-ON
Others
SV4 (n)
(Note 1)
SV3B
OFF
SVD
OFF
SVD
OFF
SV5
ON
SV3C
OFF
SVS
ON
SVS
ON
SV6
Control
SV3D
Control
SVDD
OFF
SVDD
OFF
SV11
OFF
SV3E
ON
SVSS
ON
SVSS
ON
SV12
Close
PMV1, 2
Control
PMV
Control
PMV
Control
Outdoor fan
Stop (Note 2)
PMV3
Control
Fan
Control
Fan
Stop
Sensor
TO
TS2
TL
Main heat exchanger
SV2
SV12
TE1
SV5
SV41
SV3A
SV3E
SV3B
SV3D
SV6
SV11
SV3C
Accumulator
Pd sensor
Pd
sensor
sensor
TK1
TK4
TK3
SV42
HP
HP
Compressor 2
(In
ve
rter)
Compressor 1
(In
ve
rter)
TK2
TD2
TD1
Liquid
tank
Oil tank
PMV1
PMV2
PMV3
Main heat exchanger
OS
ST
ST
SVD
SVS
SVDD SVSS
Cooling
FS unit
Indoor unit
TCJ
TC2
TC1
PMV
ST
ST
SVD
SVS
SVDD SVSS
Heating
TCJ
TC2
TC1
PMV
ST
ST
SVD
SVS
SVDD SVSS
Heating
TCJ
TC2
TC1
PMV
ST
ST
SVD
SVS
SVDD SVSS
Stop
TCJ
TC2
TC1
PMV
Suction gas pipe
Discharge gas pipe
Liquid pipe
TS1
4-Way valve
OFF
Header unit
Follower unit
FM
FM
Sensor
TO
TS2
TL
Main heat exchanger
SV2
SV12
TE1
SV5
SV41
SV3A
SV3E
SV3B
SV3D
SV6
SV11
SV3C
Accumulator
Pd sensor
Pd
sensor
sensor
TK1
TK4
TK3
SV42
HP
HP
Compressor 2
(In
ver
ter)
Compressor 1
(In
ver
ter)
TK2
TD2
TD1
Liquid
tank
Oil tank
PMV1
PMV2
PMV3
Main heat exchanger
OS
TS1
4-Way valve
OFF
High pressure gas or condensed liquid refrigerant
Low pressure gas refrigerant
Low pressure gas refrigerant (Refrigerant recovery line)
High pressure refrigerant (Push-in circuit)
Defrost operation is carried out during all heating operation or Mainly heating, part cooling operation.