Caution
Apply proper sealant to the pipe joints to prevent leakage. Do not over-tighten the safety valve to
avoid damage.
Water inlet and outlet connection
Three-way discharge pipe connection
Refer below for the connection of the three-
pass discharge tube. The port of the relief
valve and condensation pipe are connected
to the floor drain by the three-way discharge
pipe.
Power connection
This water heater must be connected by fixed wiring to the supply mains. Ensure that the fixed wiring
for the water heater is incorporated with contact separation of at least 3mm in all poles for
disconnection. The insulation of the fixed wiring must be protected by an insulating sleeving with a
temperature rating of at least 80°C.
Ensure the water heater is reliably grounded. The earth wire must be longer than the current carrying
conductors. The maximum power of this water heater is 3300W, hence a single dedicated power
supply circuit is proposed. The core area of the electric supply wire should not be less than 2.5 mm
²
.
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 (0.85 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.
12
Fig. 6
Fig. 7
