Stopping Operation; When System Is In Stop Mode; Stop Due To Malfunction - Daikin RTSQ20PY1 Service Manual

SiBE31-801_C

2. Stopping Operation

2.1

When System is in Stop Mode

Both master units and slave units all stop according to the following contents.
Actuator
Compressor 1
Compressor 2
Compressor 3
Outdoor unit fan1
Outdoor unit fan2
Electronic expansion valve
(Main)
Electronic expansion valve
(Subcooling)
Electronic expansion valve
(Refrigerant charge)
Solenoid valve (Refrigerant
regulator gas purging pipe)
Four way valve (Heat
exchanger switch)
Solenoid valve (Refrigerant
regulator liquid pipe)
Solenoid valve (Hot gas)
Solenoid valve (Main bypass)
Solenoid valve (Refrigerant
regulator discharge pipe)
Solenoid valve (Refrigerant
regulator discharge pipe)
Four way valve (High/low
pressure gas pipe switch)
Ending conditions
2.2

Stop due to Malfunction

In order to protect compressors, if abnormal conditions occur, the system will make "stop with thermostat OFF" and the
malfunction will be determined according to the number of retry times.
(Refer to P.213~215 "List of Malfunction Code" in Part 6 "Troubleshooting" about the items of malfunction decision.)
Operation by which this malfunction is determined: The system makes a stop and the remote controller displays the
relevant "Malfunction code".
Function
Elect.
Symbol
symbol
— M1C
— M2C
— M3C
— M1F
— M2F
EVM Y1E
EVT Y3E
EVJ Y2E
SVG Y1S
20SA Y3S
SVL Y4S
SVP Y5S
SVE Y6S
SVO Y7S
SVT Y8S
20SB Y2S
—
Operation
RTSQ8P RTSQ10•12P
OFF
—
—
OFF
—
80 pls
Holds
Holds
Indoor unit thermostat is turned ON.

Stopping Operation

RTSQ14•16P
OFF OFF
OFF OFF
— OFF
OFF OFF
— OFF
0 pls
0 pls
OFF
OFF
OFF
OFF
OFF
OFF
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