Frozen Mode - Daikin LXE10E-A14 Service Manual

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2.5.1 Frozen mode

Control state transition and common control
LPT<–50kPa
RS : Return air temperature
SP : Setting point temperature
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 2-18)
※3: Economizer control (Refer to Page 2-19)
Thermostat ON (Pull-down range)
GCompressor
GEvaporator fan
Continuous compressor running for
≤ ≤
2 minutes or more and RS SP
Pump down
GCompressor
GEvaporator fan
Thermostat OFF
GCompressor
GEvaporator fan
CC
EFH
EFL
CF
LSV
ESV
ISV
HSV
DSV
BSV
SMV
EV
Running
Low speed (L)
RS > SP + 1.0˚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
2-9
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%