Stopping Operation - Daikin RXYQ96PYDN Service Manual

Special Control
Electronic expansion valve
(Main)
Electronic expansion valve
(Subcooling)
Electronic expansion valve
(Refrigerant charge)
Four-way valve (Heat
exchanger switch)
Four-way valve (High/low
pressure gas pipe switch)
Solenoid valve (Main bypass) SVE
Solenoid valve (Hot gas)
Solenoid valve (Refrigerant
regulator liquid pipe)
Solenoid valve (Refrigerant
regulator gas vent pipe)
Solenoid valve (Refrigerant
regulator exhaust pipe)
Solenoid valve (Refrigerant
regulator discharge pipe)
Ending conditions
7.6.2 Crankcase Heater Control
In order to prevent the refrigerant from condensing in the compressor oil in the stopped mode, this mode is used to control
the crankcase heater.
Crankcase heater
7.7

Stopping Operation

7.7.1 When System is in Stop Mode (Normal operation stop)
This mode is used to define actuator operations when the system stops.
Actuator
Compressor1
Compressor2
Outdoor unit fan1
Outdoor unit fan2
Electronic expansion valve
(Main)
Electronic expansion valve
(Subcooling)
Electronic expansion valve
(Refrigerant charge)
Four-way valve (Heat
exchanger switch)
Four-way valve (High/low
pressure gas pipe switch)
208
Y1E
EVM Y1E
Y3E
Y2E
EVT Y3E
Y5E
EVJ Y4E Y2E
Y2S
20SA Y3S
Y9S
20SB Y8S Y2S
Y5S
Y10S Y6S
SVP Y4S Y5S
SVL Y3S Y4S
SVG Y1S Y1S
SVO Y7S Y7S
SVT Y6S Y8S
—
temperature < 158 ˚F
OFF
temperature > 167 ˚F
Elect.
symbol
Symbol
REYQ REMQ
— M1C M1C
— M2C M2C
— M1F M1F
— M2F M2F
Y1E
EVM Y1E
Y3E
Y2E
EVT Y3E
Y5E
EVJ Y4E Y2E
Y2S
20SA Y3S
Y9S
20SB Y8S Y2S
Discharge pipe
Discharge pipe
REYQ72~144P
OFF
OFF
OFF
OFF
0 pls
0 pls
80 pls
Holds
Holds
OFF
OFF
OFF
OFF
OFF
OFF
2 min.
Crankcase heater
ON
Operation
REMQ72P REMQ96·120P
OFF
—
OFF
—
0 pls
0 pls
80 pls
Holds
Holds
VRVIII R-410A Heat Recovery 60Hz
SiUS34-801A_b
OFF
OFF
OFF
—