A-Series CFWH installation guide 01-18
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5
General installation information
Securing the Rinnai INFINITY
The wall or structure on which the units are
mounted MUST BE capable of supporting the
weight of the appliance and associated pipe
work. Refer p. 7 for the specific model weight.
Ensure that suitable fixing screws or bolts
are used to secure the unit to the wall, in
accordance with AS/NZS 5601 section 6.
Wooden plugs shall not be used.
The top bracket has a keyhole slot so that the
appliance can be positioned by hanging it on
one screw, once in position the appliance can
then be secured with appropriate fittings.
The appliance can be mounted directly
against the wall or structure. There is no need
to use non-combustible sheeting between the
appliance back panel and the wall or structure
for the purposes of meeting the temperature
hazard requirements of AS/NZS 5601.
Pipe sizing
If the gas pipe sizing is insufficient the
appliance won’t perform properly. Gas pipe
sizing must consider the gas input into this
appliance as well as other gas appliances in the
premises. The gas meter and regulator must
be specified for this gas rate.
An approved sizing chart such as the one in
AS/NZS 5601 should be used. Refer p. 7 for
model specific gas consumption details.
Water pipe sizing and layout should be
performed in accordance with AS/NZS 3500.
All hot water pipe work should be insulated to
optimise performance and energy efficiency.
Water supply
The appliance is intended to be permanently
connected to the water mains.
Refer p. 7 for model specific operational
water pressure limitations. Approved
pressure limiting valves may be required if
the maximum rated water supply pressures
are exceeded. To achieve the rated flow, the
minimum water supply pressures must be
met.
The A-Series water heaters will operate at
lower pressures than the specifications, but
will not achieve the rated flow. Contact Rinnai
for gravity fed or low pressure installations.
Water chemistry and impurity limits are
detailed in the operation guide within the
warranty section. Most metropolitan water
supplies fall within the requirements.
If you are unsure about your local water
quality, contact your water authority. If sludge
or foreign matter is present in the water
supply, a suitable filter or strainer should be
incorporated in the water supply to the Rinnai
INFINITY.
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