Zenith Econoboil - Installation & Operating Instructions - 804544NZ - 03.17 v1.00
Page 5 of 12
Visible Tundish
Vent line
Installation Procedures
Continued
Step 3 – Connecting
THE FOLLOWING PROCEDURE IS TO BE DONE BY AN AUTHORISED
INSTALLER ONLY.
a) Plumbing
For exposed plumbing connection, connect the cold water inlet pipe
from the base of the heater directly to the 1/2” or 12.7 mm compression
fittings.
For concealed plumbing connections, connect the cold water pipe
through the rear of the chassis using a 1/2” or 12.7 mm capillary elbow
(# 63 Swivel Elbows).
Cold water pipes must be flushed before connection to the inlet. Any
clogging due to sediment or fines will adversely affect the operation of
the heater.
It is recommended that the heater be installed with a stop cock which
allows it to be isolated from the mains supply for servicing as requried
by AS3500.
Water pressure requirements:
Minimum - 70 kPa, maximum - 700 kPa.
Warning: If pressure is likely to exceed 700 kPa, a pressure
limiting valve must be installed in the cold water supply line. Zenith
recommends a valve rated at 350 kPa for this application.
b) Venting
A vent at the base of the heater must be plumbed to a safe visible
location as, under certain conditions, it may discharge cold or boiling
water and/or steam.
For exposed vent plumbing, connect vent outlet from the base of heater
to a 1/2” or 12.7 mm pipe which has a continuous fall, is no more than 3
metres long, has no more than 3 right angle bends, and discharges to a
waste water drain.
For concealed vent plumbing, connect plumbing to the vent outlet
from the heater rear using a elbow protruding 45 mm from the wall.
Alternatively attach a tun dish to the wall as shown and plumb away to
waste.
Tun Dish part numbers:
Wall Mounted Tun Dish- 99017NZ and Benchtop Tun Dish- 99018NZ.
c) Electrical
Do not turn the power ON yet. Power is only to be turned on after the
cover and the tap is fitted and the unit is filled with water.
This unit is designed for connection to 220-240 volt AC power supply
via either a concealed electrical connection or an exposed electrical
connection.
For an exposed electrical connection, the pre-fitted flex and plug
cable is plugged into the PCB as shown. Use a standard
10 amp 220-
240 volt power outlet within 1500 mm from the heater with adequate
power for the unit.
Concealed power and water
are connected through rear.
Electrical
Exposed power and water
are connected through base.
