SiUS281117
Special Control
42
Function and Control
3.5
Restart Standby
Ta: Outdoor air temperature
Restart is stood by force to prevent frequent power-ON/OFF and to equalize pressure in the
refrigerant system.
3.6
Stopping Operation
Operation of the actuator when the system is down, is cleared up.
3.6.1 When System is in Stop Mode
Parts Name
Symbol
Electric Symbol
Operation
Remarks
RZR18/24/32P
RZQ18/24/30P
RZR36/42P
RZQ36/42P
Compressor
(INV.)
M1C
M1C
OFF
Outdoor unit
fan
M1F
M1F
M2F
Ta > 86
F: STEP 4
Ta
86
F: OFF
Four-way
valve
20S1
Y1S
Y1S
Keep former condition.
Electronic
expansion
valve (Main)
EV1
Y1E
Y1E
0 pls
Solenoid valve
(Hot gas)
SVP
Y2S
Y2S
ON
Solenoid valve
(Receiver gas
discharging)
SVG
Y3S
OFF
Ending conditions
5 minutes
Parts Name
Symbol
Electric Symbol
Operation
RZR18/24/32P
RZQ18/24/30P
RZR36/42P
RZQ36/42P
Compressor
(INV.)
M1C
M1C
OFF
Outdoor unit fan
M1F
M1F
M2F
OFF
Four-way valve
20S1
Y1S
Y1S
Keep former condition.
Electronic
expansion valve
(Main)
EV1
Y1E
Y1E
0 pls
Solenoid valve
(Hot gas)
SVP
Y2S
Y2S
OFF
Solenoid valve
(Receiver gas
discharging)
SVG
Y3S
OFF
Ending conditions
Indoor unit thermostat is turned ON.
