Panasonic WH-MXC09J3E8 Service Manual page 54

Air-to-water heatpump
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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.
12.1.4
Connect the Cable to Mono Bloc Unit
This section is for authorised and licensed electrician only. Work behind the cabinet front plate ⑯ secured by screws must only be carried out
under supervision of qualified contractor, installation engineer or service person.
12.1.4.1
Remove The Cabinet Front Plate ⑯
1. Remove the 4 mounting screws as shown in the illustration.
2. Slide the cabinet front plate ⑯ downward to release the pawls. Then, pull it toward front to remove it.
12.1.4.2
Fixing of Power Supply Cord
(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.
o
Connect the approved polychloroprene sheathed power supply 1 cord and power supply 2 cord and type
o
designation 60245 IEC 57 or heavier cord to the terminal board, and to the other end of the cord to isolating
device (Disconnecting means). See below table for cable size requirement.
For model WH-MXC09J3E8
Power Supply Cord
1
2
For model WH-MXC12J9E8
Power Supply Cord
1
2
For model WH-MXC16J9E8
Power Supply Cord
1
2
2. To avoid the cable and cord being damaged by sharp edges, the cable and cord must be passed through the
designated holes before being connected to the terminal block.
3. Secure the cable onto the control board with the holder (clamper).
Cabinet front plate
Mounting screws
Cable Size
Isolating Devices
2
5 x minimum 1.5 mm
3 x minimum 1.5 mm
2
15/16A
Cable Size
Isolating Devices
5 x minimum 1.5 mm
2
5 x minimum 1.5 mm
2
Cable Size
Isolating Devices
5 x minimum 2.5 mm
2
2
5 x minimum 1.5 mm
If necessary, use a hose clamp to tighten the hose
at drain hose connector to prevent it from leaking.
WARNING
16
Recommended RCD
20A
30mA, 4P, type A
30mA, 2P, type AC
Recommended RCD
20A
30mA, 4P, type A
20A
30mA, 4P, type AC
Recommended RCD
20A
30mA, 4P, type A
20A
30mA, 4P, type AC
54
Drain hose
connector
Drain hose
Illustration of how to fix
drain hose to Mono bloc unit
Mounting
screws

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