Ecoplus ZR9W-250V Instruction Manual - Page 19
Browse online or download pdf Instruction Manual for Water Heater Ecoplus ZR9W-250V. Ecoplus ZR9W-250V 20 pages. Domestic hot water unit, air source heat pump with external coil
Print Page7.APPENDIX
2). Wiring diagram
Heat pump unit with 1kw Auxiliary electrical heating refer to diagram 1
COMPRESSOR
YLW/
CM
GRN
C
R
S
YLW/GRN
L N
Diagram 2 for unit with 1.5kw or 2kw Auxiliary electrical heating
COMPRESSOR
YLW/GRN
CM
C
R
S
YLW/GRN
L N
E-HEATER
OUT1
OUT2
1
3
2
4
OUT3
BLU
OUT4
RED
-
AC
N
CN3
CN1 CN2
3
Temp-sw
CONTROLLER
TRANSFORMER
POWER 1PH 220V/50Hz
OUT1
OUT2
1
3
2
OUT3
OUT4
-
AC
N
CN3
CN1 CN2
3
Temp sw
CONTROLLER
TRANSFORMER
POWER 1PH 220V/50Hz
WIRING DIAGRAM 1
FM
CN4
MCU
HIGH PRESSURE PROTECT
LOW PRESSURE PROTECT
WIRING DIAGRAM 2
FM
CN4
4
MCU
HIGH PRESSURE PROTECT
LOW PRESSURE PROTECT
17
COMPRESSOR LOW PRESSURE
SIDE TEMPERATURE
COIL TEMPERATURE
TANK UPPER AREA WATER
TEMPERATURE
TANK BOTTOM WATER
TEMPERATURE
Temp-sw
80
Thermostat
FU
95
Fuse protector
COMPRESSOR LOW PRESSURE
SIDE TEMPERATURE
COIL TEMPERATURE
TANK UPPER AREA WATER
TEMPERATURE
TANK BOTTOM WATER
TEMPERATURE
Temp sw
80
Thermostat
FU
95
Fuse protector