1-15
1.4.5 Compressor, Fan Motor, Valve Function
●Frozen Mode
Component Name Pull-down
Modulated
Control
Cooling Off
------ Notes -----
※1 EFM operates at
RS≦-5.0℃
※ 2 High pressure
control
※3 EFM operates
H only or L only
depend on user
requirement
EEV fully open: 420 pls
EMV fully open: 300 pls
DMV fully open: 760 pls
Motor
Compressor
CM※7,8
Max.130r/s 20〜130r/s OFF
Evaporator fan motor
EFM H(L ※1) LL
Condenser fan motor
CFM H/L/OFF ※2 H/L/OFF ※2OFF
Solenoid
Valve
Liquid solenoid valve
LSV ON ON OFF
Economizer solenoid valve
ESV ON ON OFF
Hot gas solenoid valve
HSV OFF OFF OFF
Reheat solenoid valve
RSV OFF OFF OFF
Modulation
Valve
Electronic expansion valve
EEV※8
2〜100% 2〜100% 0%
Economizer modulation valve
EMV※8
2〜100% 2〜100% 0%
Discharge modulation valve
DMV※8
100% 100% 100%
●Chilled Mode ●
Dehumidification mode
Component
Name
Pull-down
Modulated
Control
Cooling Off Heating Dehumidification
Motor
CM※7, 8
Max.130r/s 20〜130r/s OFF 20〜95r/s 20〜95r/s
EFM H H/L ※3 H/L H/OFF H
CFM H/L/OFF ※2 H/L/OFF ※2 OFF OFF(L/H ※5) H(L/OFF ※6)
Solenoid
Valve
LSV ON ON OFF OFF(ON/OFF ※4) ON
ESV ON ON/OFF OFF OFF(ON ※4) OFF
HSV OFF OFF OFF ON(ON/OFF ※4,5) OFF
RSV OFF OFF OFF OFF ON
Modulation
Valve
EEV※8
2〜100% 2〜100% 0% 0%(0〜36% ※4) 2〜100%
EMV※8
2〜100% 2〜100% 0% 0%(24〜24% ※4) 0%
DMV※8
100% 100% 100%
0%(0〜100% ※4)
(13〜100% ※5)
20〜100%
●Defrost Mode
Component
Name
Pumpdown Defrost
------ Notes -----
※4 Charging control
※5 Release control
※6 CFM may become L/OFF in some case to
increase dehumidification capacity.
※7 Compressor may reduce its revolution
prior to take protection control when
the protection control activated in some
reason.
※8 Compressor revolution (r/s) and EEV,
EMV, DMV opening (pls) are displayed in
panel. (Refer to ※3 Sensor information in
paragraph 2.3.)
Motor
CM※7, 8
Max.50r/s 20〜95r/s
EFM H/L/OFF ※2OFF
CFM H OFF(L/H ※5)
Solenoid
Valve
LSV ON OFF(ON/OFF ※4)
ESV OFF OFF(ON ※4)
HSV OFF ON(ON/OFF ※4,5)
RSV OFF
OFF(ON/OFF ※4,5)
Modulation
Valve
EEV※8
0% 0%(0〜36% ※4)
EMV※8
0% 0%(0〜24% ※4)
DMV※8
100%
0%(0〜100% ※4)
(13〜100% ※5)