Daikin Super Multi Plus E-Series RMXS112E8V1B User Manual

Special Control SiBE18-821_C
86 Function
3.4 Pump-down Residual Operation
When activating compressor, if the liquid refrigerant remains in the heat exchanger, the liquid
enters into the compressor and dilutes oil therein resulting in decrease of lubricity.
Therefore, the pump-down residual operation is performed to collect the refrigerant in the heat
exchanger when the compressor is down.
3.4.1 Pump-down Residual Operation in Cooling Operation
3.4.2 Pump-down Residual Operation in Heating Operation
Actuator
Pump-down residual operation
Step 1 Step 2
Compressor 124 Hz Full load 52 Hz Full load
Outdoor fan Fan control Fan control
Four way valve (Y1S) OFF OFF
Main electronic expansion valve (Y1E) 480 pls 240 pls
Subcooling electronic expansion valve
(Y3E)
0 pls 0 pls
Hot gas bypass valve (Y2S) OFF OFF
Ending conditions 2 sec. 2 sec.
Actuator Pump-down residual operation
Compressor 124 Hz Full load
Outdoor fan STEP 7
Four way valve (Y1S) ON
Main electronic expansion valve (Y1E) 0 pls
Subcooling electronic expansion valve
(Y3E)
0 pls
Hot gas bypass valve (Y2S) OFF
Ending conditions 4 sec.

Daikin Super Multi Plus E-Series RMXS112E8V1B Specifications

General

Brand	Daikin
Model	Super Multi Plus E-Series RMXS112E8V1B
Category	Air Conditioner
Language	English