Zip Hydroboil - Installation & Operating Instructions - 81447 - February 2004
Page 5 of 12
Install plumbing and wiring, and prepare pipe ends for connection as shown in
step 3.
Screw heater chassis to wall using screws or bolts suited to the wall surface.
Screws/bolts must be able to support the following weights when filled.
Step 3 – Connecting
a)
Plumbing
For exposed plumbing connection, connect the cold water inlet pipe from the
base of the heater directly to the 15 mm or 1/2 inch BSP compression fittings.
For concealed plumbing connections, connect the cold water pipe through the
rear of the chassis using a 15 mm or 1/2 inch BSP capillary elbow (# 63
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 isolating valve which
allows it to be isolated from the mains supply for servicing.
Water pressure requirements:
Minimum - 0.1 bar, Maximum - 7 bar.
Warning: If pressure is likely to exceed 7 bar, a pressure limiting valve must be
installed in the cold water supply line. We recommend a valve rated at
3.5 bar 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
15 mm OD 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 capillary elbow protruding 45 mm from the wall.
Installation Procedures
Continued
COLD
INLET
VENT
OUTLET
INLET
POSITION
VENT
POSITION
45mm
Elbow
250mm
Wiring
Concealed
Vent
Concealed
Inlet
45 mm
Side View
Front View
Exposed vent
With Tundish
