Panasonic WH-ADC0916G9E8, Service Manual, Page: 56 / 205

56

Recommended Pressure Relief Valve
specifications:
o
Set pressure: 1.0 MPa (10.0 bars)

Must connect a faucet to Tank Unit Tube
Connector
i
and main water supply, in order to
supply water with appropriate temperature for
shower or tap usage. Failure to do so might cause
scalding.

Failure to connect the tube appropriately might
causing the Tank Unit malfunction.
(C) Pressure Relief Valve Drainage Pipework

Connect a drain hose with inner diameter of
15 mm to Pressure Relief Valve Drainage .

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.

The water may drip from this discharge hose.
Therefore must guide the hose without close or
block the outlet of the hose.

Do not insert this hose into sewage hose or
cleaning hose that may generate ammonia gas,
sulphuric gas etc.

If necessary, use a hose clamp to tighten the hose
at drain hose connector to prevent it from leaking.

Guide the drain hose to outdoor as illustrated at
the right figure.
(D) Domestic Hot Water Tank Discharge Pipework

Use R½" male connector for Domestic Hot Water
Tank Discharge connection.

Piping must to be installed in a continuously
downward direction and in a frost-free
environment.

Discharge pipes must be visible and away from
electrical components.

Guide the drain hose to outdoor as illustrated at
the below figure.

It is recommended to fit a tundish into this
pipework. Tundish should be visible and
positioned away from frost environment and
electrical components.
(E) Drain Elbow and Hose Installation

Fix the Drain Elbow and Packing to the bottom of
Drain Water Hole .

Use inner diameter 17 mm drain hose in the
market.

This hose must to be installed in a continuously
downward direction and in a frost-free
environment.

Guides this hose outlet to outdoor only.

Do not insert this hose into sewage or drain pipe
that may generate ammonia gas, sulphuric gas,
etc.

If necessary, use hose clamp to further tighten the
hose at drain hose connector to prevent leakage.

Water will drip from this hose, therefore the outlet
of this hose must be installed in an area where the
outlet cannot become blocked.
11.1.4 Connect the Cable to Tank Unit
WARNING
This section is for authorized and licensed electrician only. Work behind the Control Board Cover secured by screws must only be carried out
under supervision of qualified contractor, installation engineer or service person.
Fixing of Power Supply Cable and Connecting Cable 11.1.4.1
1 Connecting cable between Tank Unit and Outdoor Unit shall be approved polychloroprene sheathed flexible
cord, type designation 60245 IEC 57 or heavier cord. See below table for cable size requirement.
Model
Connecting Cable Size
Tank Unit Outdoor Unit
ADC0916*E8*
UX09*E8* / UX12*E8* /
UX16*E8* / UD09*E8* /
UD12*E8* / UD16*E8*
6 x min 1.5 mm
2
o
Ensure the colour of wires of Outdoor Unit and the terminal no. are the same to the Tank Unit
respectively.
o
Earth wire shall be longer than the other wires as shown in the figure for the electrical safety in case of
the slipping out of the cord from the Holder (Clamper).
Drain
hose
connector
Drain
hose
Illustration of how to fix
drain hose to Tank Unit
Illustration of guide
drain hose to outdoor
Discharge below
fixed grating
Fixed grating
Trapped gulley
Possible wall
Packing
3
Drain
Elbow
2