Specifications

SiBE28-805 Special Control
Function 41
3.2.2 Oil Return Operation in Heating Operation
Outdoor Unit Actuator
Oil return preparation
operation
Oil return operation Post-oil-return operation
Compressor Upper limit control 176 Hz
124 Hz
2-steps increase/20sec.
till Pc - Pe>0.4 MPa
Outdoor unit fan
STEP7
or
STEP8
OFF STEP8
Four way valve ON OFF ON
Main motorized valve (EV1) SH control → 480 pls 480 pls 55 pls
Subcooling motorized valve (EV2) SH control 0 pls 0 pls
Hot gas bypass valve (SVP) OFF OFF OFF
Accumulator oil return valve (SVO) ON ON ON
Injection (SVT) (CMSQ200A7 model only) OFF OFF OFF
Ending conditions 170 sec.
• 4 min.
• Ts - Te<5°C
• 10 sec.
• Pc - Pe>0.4MPa
or
or
Indoor unit actuator Heating oil return operation
Fan
Thermostat ON unit OFF
Stopping unit OFF
Thermostat OFF unit OFF
Electronic expansion valve
Thermostat ON unit Oil return EV opening degree
Stopping unit 256 pls
Thermostat OFF unit Oil return EV opening degree