Specifications
Special Control SiUS39-601
44 Function
3.4 Pump-down Residual Operation
3.4.1 Pump-down Residual Operation in Cooling Operation
3.4.2 Pump-down Residual Operation in Heating Operation
Actuator Operation
Compressor 210 Hz + OFF
Outdoor unit fan Fan control
Four way valve OFF
Main motorized valve (EV1) 0 pls
Subcooling motorized valve (EV2) 0 pls
Hot gas bypass valve (SVP) ON
Oil equalization valve (SVO) ON
Receiver gas charging valve (SVL) OFF
Receiver gas discharging valve (SVG) ON
Non-operating unit gas discharging valve (SVSG) OFF
Non-operating unit liquid pipe stop valve (SVSL) ON
Ending conditions
• 5 min.
• Pe<72.5 psi
• Td>230°F
or
Actuator Operation
Compressor 124 Hz + OFF
Outdoor unit fan STEP8
Four way valve ON
Main motorized valve (EV1) 0 pls
Subcooling motorized valve (EV2) 0 pls
Hot gas bypass valve (SVP) ON
Oil equalization valve (SVO) ON
Receiver gas charging valve (SVL) OFF
Receiver gas discharging valve (SVG) ON
Non-operating unit gas discharging valve (SVSG) OFF
Non-operating unit liquid pipe stop valve (SVSL) ON
Ending conditions
• 30 sec.
• Pe<36 psi
•
Td>230
°
F
or