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GENERAL INSTALLATION INSTRUCTIONS
WATER SUPPLY
See Table 1, page 30 for applicable water pressures. Approved pressure limiting valves may be
required if the 'Maximum' rated water supply pressures in Table 1 are exceeded. To achieve the rated
flow, the 'Minimum' water supply pressures in Table 1 must be supplied.
The water heaters will operate at lower pressures but will not achieve the rated flow. Contact Rinnai
for 'gravity fed' or 'low pressure' installations.
Water chemistry and impurity limits are detailed under 'Warranty Conditions'. 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 water heater.
HOT WATER DELIVERY TEMPERATURE
Local regulations and or the requirements of AS/NZS 3500 must be considered regarding the
temperature limitations of hot water supplied to areas used primarily for personal hygiene. The
temperature of water to these areas may be limited to 50°C or less. To ensure these regulations and
or requirements are met the system MUST be installed in accordance with the 'Water Heater and
Controller Installation Configurations' Section of these instructions.
WATER HEATER AND CONTROLLER INSTALLATION CONFIGURATIONS
If the appliance is marked to state that it delivers water not exceeding 50°C, local regulations may
permit it's installation without a Temperature Limiting Device. Installations without a Temperature
Limiting Device are shown in Diagram 1 (page 29). If you are unsure about your local regulations
contact your regulating authority or Rinnai.
If the appliance is NOT marked to state that it delivers water not exceeding 50°C, or your local
regulations require installation with a Temperature Limiting Device then install the appliance in
accordance with Diagram 2 (page 29).
Ensure that suitable fixing screws or bolts are used to secure the units 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,
then the other screws can be secured.
MOUNTING THE APPLIANCE
See Table 1, page 30 for individual appliance weights. The wall or structure on which the units are to
be mounted must be capable of supporting these weights and the associated pipe-work.
The top bracket has a keyhole slot so that the appliance can be positioned by hanging it on one screw,
then the other screws can be secured.
The appliance can be mounted directly against the wall or structure. There is no need to use, non
combustible sheeting or leave an air gap between the appliance back panel and the wall or structure
for the purposes of meeting the temperature hazard requirements of AS/NZS 5601.
If the appliance is to deliver water primarily for the purposes of personal hygiene in an
early childhood centre, primary or secondary school, nursing home or a similar facility
IMPORTANT
for the care of young, aged, sick or disabled persons as defined in AS/NZ 3500 a
Temperature Limiting Device (TLD), such as a Tempering Valve may be required even
if the appliance is set to 50º C or less.
For these types of applications contact Rinnai.
50º C
H
C
G
O
O
A
T
L
S
D
Minimum length of pipe from hot outlet
to nearest hot water tap 2 metres.
Rinnai Australia
Water controller
ENSUITE
(optional)
Water controller
LAUNDRY
(optional)
Water controller
BATHROOM
(optional)
Water controller
KITCHEN
(optional)
Diagram 1 - 50°C Appliance
Water controller
Water controller
(optional)
(optional)
KITCHEN
LAUNDRY
H
C
G
O
O
A
T
L
S
D
Diagram 2 - Not a 50°C Appliance
Note: TLD = Temperature Limiting Device
29
Water controller
Water controller
(optional)
(optional)
ENSUITE
BATHROOM
TLD
Installation Manual
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