Toshiba RAV-SM2246AT8J-E Service Manual page 60

12. SV2 valve control
The conditions for opening and closing the SV2 valve are shown in the table below.
(1)
Non-operation
(2)
(3)
During Cooling
Operations
(4)
(5)
During Heating
Operations
(6)
(7)
During
Defrost
Operation
(8)
Compressor
revolution number
4-way valve
SV2
SV2 Valve "Open" Conditions
When operation stopped after operating
When power placed "ON"
When 30 second elapses after first startup
operation when power ON at TO ≤ 5˚ C
When Ps ≤ 0.23 MPa
When 30 second elapses after first startup
operation when power ON at TC < 26˚C
When Ps ≤ 0.14 MPa
When conditions for defrost satisfied.
When conditions for defrost satisfied.
Defrost
start condition
62rps
31rps
ON
OFF
Open
Close
SV2 Valve "Close" Conditions
When operation started after operating or when 30 minutes
elapsed after opening SV2 under conditions (1) (2)
When 8 minutes elapsed after starting operation.
When Ps ≥ 0.27 MPa
When 8 minutes elapsed after starting operation or when
TC ≥ 26˚C
When Ps ≥ 0.19 MPa
When 4-way valve is OFF during defrost startup.
When 2 minutes elapsed after four-way valve is ON after
defrost completion
Defrost
completion condition
Defrost operation
– 60 –
2 minutes