Loading ...
Loading ...
Loading ...
CONNECTIONS – PLUMBING
31
PIPE SIZES
To achieve true mains pressure operation, the cold water line to the water heater
should be the same size or bigger than the hot water line from the water heater.
The pipe sizing for hot water supply systems should be carried out by persons
competent to do so, choosing the most suitable pipe size for each individual
application. Reference to the technical specifications of the water heater and
local regulatory authority requirements must be made.
TEMPERATURE PRESSURE RELIEF VALVE
The temperature pressure relief valve is shipped in a plastic bag attached to the
water heater. The temperature pressure relief valve must be fitted before the
water heater is operated. Before fitting the relief valve, make sure the probe has
not been bent. Seal the thread with an approved thread sealant such as Teflon
tape - never hemp. Make sure the tape does not hang over the end of the thread.
Screw the valve into the selected opening labelled “Relief Valve” (refer to the
installation diagram on page 27) leaving the valve outlet pointing downwards. Do
not use a wrench on the valve body - use the spanner flats provided. A copper
drain line must be fitted to the temperature pressure relief valve (refer to "Relief
Valve Drain" on page 32).
The valve must be insulated with
closed cell polymer insulation or
similar (minimum thickness 9 mm)
and the insulation installed so as not
to impede the operation of the valve.
The insulation must be weatherproof
and UV resistant if exposed.
The insulation collar supplied with
the temperature pressure relief valve
must be placed over the body of the
valve, prior to fitting the valve to the
water heater (refer to the diagram on
page 31).
SK7400 A4
REV AD 02/13
USE TEFLON TAPE
FIT SUPPLIED INSULATION TO
VALVE AS SHOWN
Loading ...
Loading ...
Loading ...