Air Source Heat Pump EAP range user manual - www.ecoairpump.co.uk
COMP1:
Compressor 1
COMP2:
Compressor 2
4WV1:
4-way Reversing Valve 1
4WV2:
4-way Reversing Valve 2
FAN1:
Fan Motor, Low Speed
FAN2:
Fan Motor, High Speed
PUMP:
Water Pump
HOT:
Backup Electricity Heater
A-HOT:
Crankcase Heater
P-W:
Solenoid for Hot Water
S-F:
Solenoid for Defrost Heating Cable
ERR:
Error Light
CN3 :
Inlet Water Temperature Sensor
CN4 :
Outlet Water Temperature Sensor
CN5 :
Ambient Temperature Sensor
CN6 :
Evaporator Coil Temperature 1 Sensor
CN7 :
Evaporator Coil Temperature 2 Sensor
CN8 :
Hot Water Temperature Sensor
CN9 :
Gas Discharge Temperature 1 Sensor
CN10:
Gas Discharge Temperature 2 Sensor
CN11:
Control Panel
CN12:
Assist Unit
COM:
Common Port
EN:
Interlock Signal
HP1:
High Pressure Protection 1
LP1:
Low Pressure Protection 1
HP2:
High Pressure Protection 2
LP2:
Low Pressure Protection 2
OV1:
Compressor 1 Overload
OV2:
Compressor 2 Overload
FLOW:
Water Flow Switch
SET:
Anti-freeze Protection
BUS:
Comprehensive Protection
14.2. Jumper Settings
State
Function
Switch
Disconnected
Loop Wired
Remarks
JP1
Equipments Self-checkup. User regulation not
allowed.
JP2
Both Systems Valid
System 1 Valid Only
JP3
Backup
JP4
Backup