Stopping Operation - Daikin RXYQ96PYDN Service Manual

SiUS34-801A_b
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 when 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)
Solenoid valve (Main bypass)
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
VRVIII R-410A Heat Pump 60Hz
SVO Y7S
SVT Y6S
—
Discharge pipe
temperature < 158 ˚F
OFF
Discharge pipe
temperature > 167 ˚F
Elect. symbol
Symbol
RXYQ
144PTJU
— M1C
— M2C
M1F
—
M2F
Y1E
EVM
Y3E
Y2E
EVT
Y5E
EVJ Y4E
Y2S
20SA
Y9S
20SB Y8S
Y5S
SVE
Y10S
SVP Y4S
SVL Y3S
SVG Y1S
SVO Y7S
SVT Y6S
—
Y7S
Y8S
Crankcase heater
For any model
other than that
shown on the left
M1C
M2C
M1F
—
Y1E
Y3E
Y2E
Y3S
Y2S
Y6S
Y5S
Y4S
Y1S
Y7S
Y8S
Indoor unit thermostat is turned ON.
Special Control
OFF
OFF
2 min.
ON
Operation
OFF
OFF
OFF
OFF
0 pls
0 pls
80 pls
Holds
Holds
OFF
OFF
OFF
OFF
OFF
OFF
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