ESiEN09-06 A
Special Control
Function
31
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 + ON + ON
124 Hz + OFF + OFF
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) (RXYQ5P model only)
OFF
OFF
OFF
Ending conditions
170 sec.
4 min.
Ts - Te<5 C
10 sec.
Pc - Pe>0.4MPa
or
or
AHU actuator
Heating oil return operation
Fan
Thermostat ON unit
Field setting
Stopping unit
OFF
Summary of Contents for ERQ Series
Page 2: ......
Page 16: ...Combination Table ESiEN09 06 A 6 General Information...
Page 17: ...ESiEN09 06 A Specifications 7 1 Specifications 8 1 1 Outdoor Units 8...
Page 33: ...ESiEN09 06 A Function general Function 23 1 2 Operation Mode...
Page 58: ...Outline of Control ESiEN09 06 A 48 Function...
Page 71: ...ESiEN09 06 A Wiring Diagram of Control Box Control Box EKEQ CBV3 61 3 2 F box...
Page 109: ...Test Operation ESiEN09 06 A 100 Test Operation 1 2 2 Turn power on...