A.O. Smith CAHP-MC-38 Installation, Operation And Maintenance Instructions page 47

Menu Description ： ： ： ：
Menu Item
Defrost DEFROST ON TEMP
Setting
DEFROST OFF TEMP
DEFROST INTERVAL
DEFROST TIME
Please refer to "Defrost Setting Operation" section for detailed setting method.
EEV EEV CONTROL
Setting
EEV INIT STEPS
EEV MIN STEPS
EEV MAX STEPS
Please refer to "EEV Setting Operation" section for detailed setting method.
TARGET SUPERHEAT
Heat Pumps Configuration
DEFROST ON TEMP is one of the parameters to judge whether the heat pump
should enter the defrosting cycle.
Setting Range: -30~-2 ℃
Default Value: -7
DEFROST OFF TEMP is one of the parameters to judge whether the heat
pump should exit the defrosting cycle.
Setting Range: 0~30℃
Default Value: 15
DEFROST INTERVAL is the time frame for the controller to judge whether the
heat pump should enter the defrosting cycle.
SettingRange: 15~90 Minute
Default Value:30
DEFROST TIME is one of the parameters to judge whether the heat pump
should exit the defrosting cycle.
Setting Range: 1~20 Minute
Default Value: 8
EEV CONTROL is used to set the control method of the electronic expansion
valve, it could be set as MANUAL for trouble shooting during service.
Setting Options: AUTO, MANUAL
Default Option: AUTO
EEV INIT STEPS is the parameter which determines the initial openning of the
electronic expansion valve during the unit start up period.
Setting Range: 0~500 Steps
Default Value: 350
EEV MIN STEPS is the parameter which determines the minimum openning of
the electronic expansion valve during control.
Setting Range: 0~500 Steps
Default Value: 50
EEV MAX STEPS is the parameter which determines the maximum openning
of the electronic expansion valve during control.
Setting Range: 0~500 Steps
Default Value: 480
TARGET SUPERHEAT is the parameter which set the suction superheating
target for the electronic expansion valve control.
Setting Range:-20~20℃
The Default:3
Description