Frozen Mode; Control State Transition And Common Control; Operation Of Magnetic Contactor And Solenoid Valve - Daikin LXE10E-A18C Service Manual And Parts List

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2. FROZEN MODE

2.1 Control state transition and common control

Continuous compressor running for
2 minutes or more and RS SP - 0.5˚C
LPT< 0kPa
RS : Return air temperature
SP : Setting point temperature

2.2 Operation of magnetic contactor and solenoid valve

Component name
Compressor
Evaporator fan. High speed
Evaporator fan. Low speed
Condenser fan
Liquid solenoid valve
Economizer solenoid valve
Injection solenoid valve
Hot-gas solenoid valve
Defrost solenoid valve
Discharge gas by-pass solenoid valve
Suction modulating valve
Electronic expansion valve
Note) ※1: High pressure control
※2: Injection control (Refer to Page 2-25 of Service manual)
※3: Economizer control (Refer to Page 2-26 of Service manual)
Thermostat ON (Pull-down range)
●Compressor
●Evaporator fan
≤ ≤
Pump down
●Compressor
●Evaporator fan
Thermostat OFF
●Compressor
●Evaporator fan
CC
EFH
EFL
CF
LSV
ESV
ISV
HSV
DSV
BSV
SMV
EV
Running
Low speed (L)
RS > SP + 0.5˚C
Running
Low speed
Stop
Low speed
LPT : Low pressure transducer
Thermostat ON
ON
OFF
ON
ON / OFF※1 ON / OFF※1
ON
ON(OFF※3) ON(OFF※3)
OFF(ON※2) OFF(ON※2)
OFF
OFF
OFF
9
Pump down Thermostat OFF
ON OFF
OFF OFF
ON ON
OFF
OFF OFF
OFF
OFF
OFF OFF
OFF OFF
OFF OFF
100%
10 to 100%