Connect The Cord And Cable To Mono Bloc Unit - Panasonic WH-MHF12G9E8 Service Manual

Drainage piping installation

Use a drain hose with inner diameter of 15 mm.

The hose must be installed in a continuously downward direction and left open to the frost-free atmosphere.

If drain hose is long, use a metal support fixture along the way to eliminate the wavy pattern of drain tube.

Water will drip from this hose, therefore the outlet of this hose must be installed in an area where the outlet
cannot become blocked.

Do not insert this hose into sewage or drain pipe that may generate ammonia gas, sulfuric gas, etc.

If necessary, use a hose clamp to tighten the hose at drain hose connector to prevent it from leaking.

11.4 Connect The Cord And Cable To Mono Bloc Unit

(REFER TO WIRING DIAGRAM AT UNIT FOR DETAIL)
1. An isolating device must be connected to the power supply cable.

Isolating device (Disconnecting means) should have minimum 3.0 mm contact gap.

Connect the approved polychloroprene sheathed power supply 1 cord (5 × min 1.5 mm
cord (3 × min 1.5 mm
heavier cord to the RCCB, and to the other end of the cord to isolating device (Disconnecting means).
2. To avoid the cable and cord being damaged by sharp edges, the cable and cord must be passed through a
bushing (located at the right hand side of the mono bloc unit) before being connected to the terminal block. The
bushing must be used and must not be removed.
3. Secure the cable onto the control board with the holder (clamper).
Terminal on the Mono bloc unit
(Power Supply Cord)
Terminals on the isolating device
from power supply
(Disconnecting means)
Power Supply 2
RCCB
Power Supply 1
RCCB
Earth wire
must be
longer than
other wire for
safety reason
Holder
(Clamper)
POWER
POWER
SUPPLY 2
SUPPLY 1
How to guide power supply cords and optional cable / cord for
(View without internal wiring)
Illustration of how to fix drain hose to Mono bloc unit
2
) -9kW models or (5 × min 1.5 mm
L L L N L N
A1 A2 A3
L L L N L N
A1 A2 A3
Power Supply 1 Power Supply 2
Solar Pump Station Cable
(Optional)
Solar Three-way Valve Cable
(Optional)
External Control Cable (Optional)
Tank Sensor Cable (Optional)
Tank OLP Cable (Optional)
Room Thermostat Cable (Optional)
Booster Heater Cord (Optional)
Earth wire must be longer than
other wire for safety reason
Three-way Valve Cable
(Optional)
9kW models
Drain hose connector
Drain hose
2
) -12kW models, type designation 60245 IEC 57 or
L
Terminal on the Mono bloc unit
A1
(Power Supply Cord)
L
Terminals on the isolating
A1
device from power supply
(Disconnecting means)
Power Supply 1
Power Supply 2
RCCB
Power Supply 1
RCCB
Earth wire must
be longer than
other wire for
safety reason
Holder
(Clamper)
POWER POWER
SUPPLY 1 SUPPLY 2
How to guide power supply cords and optional cable / cord for
(View without internal wiring)
39
2
) and power supply 2
L L N L L L N
A2 A3 C1 C2 C3
L L N L L L N
A2 A3 C1 C2 C3
Power Supply 2
Solar Pump Station Cable (Optional)
Solar Three-way Valve Cable
(Optional)
External Control Cable (Optional)
Tank Sensor Cable (Optional)
Tank OLP Cable (Optional)
Room Thermostat Cable (Optional)
Booster Heater Cord (Optional)
Earth wire must be longer than
other wire for safety reason
Three-way Valve Cable (Optional)
12kW models