A plastic expansion tube must be placed into the drilled holes before the brackets are inserted.
It is necessary to use a special inner hexagon spanner to fasten the bolts into the expansion tubes, no
other tools are permitted. Ensure the screw is not excessively tightened. This may damage the
expansion tubes.
Insert the square holes on the upper of supporting rack at the back of the water heater onto the
brackets, then press the water heater down firmly to ensure the holes are lodged against the
brackets.
CAUTION:
•
The mounting accessories provided can only be used for solid walls, as shown in the drawing
above. Improper installation may cause the water heater to dislodge.
Plumbing Connection
Do not alter the installation position or block the relief valve. Connect the safety valve provided with
this unit to the inlet of the water heater (inlet pipe has a blue cap). The arrow points to the direction
of water flow (to the heater). The storage heater must be permanently connected to the water mains
and the use of a hose set is prohibited. The safety valve must be connected to the discharge pipe,
mounted downwards to a floor drain in a frostless environment. As water may drip from the
discharge pipe during operation of the heater, a floor drain should be provided nearby. The pipes
should not be blocked.
The hot water pipe is connected to the water outlet (outlet pipe has a red cap). If the water pressure
of the inlet pipe approaches or exceeds the relief limit (0.80 MPa) of the safety valve, the valve will
relieve pressure automatically. Refer to the following diagram for the pipe connection. Nylon hoses
should be used for the connection between the tapping pipe and the heater.
We recommend the use of a double check valve assembly for the installation of the water heaters.
The double check valve assembly is a safe and effective measure for preventing backflow and back-
siphonage of water from the water heaters through the inlet pipe.
CAUTION:
•
Apply proper sealant to the pipe joints to prevent leakage. Do not over-tighten the safety valve
to avoid damage.
8
correct installation
incorrect installation
100mm depth
