Restart Standby; Stopping Operation - Daikin RMXS-L Series Service Manual

Special Control
3.4.1 Pump-down Residual Operation in Cooling Operation
3.4.2 Pump-down Residual Operation in Heating Operation
3.5

Restart Standby

Restart is prohibited to prevent frequent ON/OFF and to equalize pressure in the refrigerant system.
3.6

Stopping Operation

Operation of the actuator is cleared up when the system is down.
60
Actuator
Compressor
Outdoor fan
Four way valve (Y1S)
Main electronic expansion valve (Y1E)
Subcooling electronic expansion valve (Y3E)
Hot gas bypass solenoid valve (Y2S)
Ending conditions
Actuator
Compressor
Outdoor fan
Four way valve (Y1S)
Main electronic expansion valve (Y1E)
Subcooling electronic expansion valve (Y3E)
Hot gas bypass solenoid valve (Y2S)
Ending conditions
Actuator
Compressor
Outdoor fan
Four way valve (Y1S)
Main electronic expansion valve (Y1E)
Subcooling electronic expansion valve (Y3E)
Hot gas bypass solenoid valve (Y2S)
Ending conditions
Actuator
Compressor
Outdoor fan
Four way valve (Y1S)
Main electronic expansion valve (Y1E)
Subcooling electronic expansion valve (Y3E)
Hot gas bypass solenoid valve (Y2S)
Ending conditions
SiUS181631EA
Pump-down residual operation
Step 1
124 Hz Full load 52 Hz Full load
Fan control Fan control
OFF OFF
480 pulse 240 pulse
0 pulse 0 pulse
OFF OFF
2 sec. 2 sec.
Pump-down residual operation
124 Hz Full load
STEP 7
ON
0 pulse
0 pulse
OFF
4 sec.
Operation
OFF
Ta > 30°C (86°F): STEP 4
Ta ≤ 30°C (86°F): OFF
Former condition remains.
0 pulse
0 pulse
OFF
2 min.
Operation
OFF
OFF
Former condition remains.
0 pulse
0 pulse
OFF
Indoor unit thermostat is turned ON.
Functions and Control
Step 2