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INSTALLATION & MAINTENANCE - GAS BOOSTED SYSTEMS
GAS BOOSTER LOCATION
The gas booster is designed for 'Outdoor" Installation only. As such, it must be located in an above
ground open air situation with natural ventilation, without stagnant areas, where gas leakage and
products of combustion are rapidly dispersed by wind and natural convection. The location must
comply with the clearances specified in AS 5601.
The gas booster must be mounted on a vertical structure with the water and gas connections on the
underside pointing downwards. The heated outlet of the cylinder is connected to cold water inlet of
the gas booster.
Ensure that the wall or structure on which it is to be mounted are capable of supporting the weight
of the appliance and associated pipe work. See Table 5 for individual gas booster weights. For gas
boosters installed on elevated structures or under floors specific requirements apply.
Refer to AS 5601 for details.
• Attach the gas booster to the wall using screws.
• Location of the gas booster flue terminal must be in accordance with Figure 5.3 of
AS 5601.
• If an internal model which has been converted to a solar gas booster follow information
supplied with the unit for location, mounting and flueing requirements.
GAS SUPPLY
The maximum gas consumption of the gas booster and the required gas pressure are shown on the
appliance data plate. If the gas pipe sizing is insufficient the customer will not get the full performance
benefit. Gas pipe sizing must consider the gas input to the gas booster as well as all the other gas
appliances on the premises. The gas meter and regulator must be specified for this gas rate. An
approved sizing chart such as the one in AS 5601 should be used. An approved full flow isolation
valve and disconnection union must be fitted to the gas supply inlet of the gas booster. Isolation
valves must not be fitted directly.
HOT WATER DELIVERY TEMPERATURE
Gas boosters for use in solar hot water systems are preset to deliver a fixed temperature of 60°C in
accordance with plumbing regulations. In addition, they contain the warning stating "Rinnai Water
Controllers are NOT compatible with solar hot water installations and MUST NOT BE USED" in the
vicinity of the temperature controller connections inside the appliance.
•
Gas Boosters other than models designated "S20", S26"or "Solar" must not be
used.
NOTE
•
Gas Boosters marked with the text: "THIS APPLIANCE DELIVERS WATER NOT
EXCEEDING 50°C IN ACCORDANCE WITH AS 3498" are incompatible with
solar hot water systems and must not be used.
SMARTSTART®
Smartstart® Function
The Smartstart® is a separate system that works in conjunction with the Rinnai solar hot water
system.
When activated by the manual activation switch, water in the pipework connected between the solar
hot water system and the hot water outlets is warmed before any outlets are opened. This results in
water savings and added convenience. Refer the Figure 28 for installation details.
Rinnai Australia
- 34 -
Solar Close Coupled Operating / Installation Manual Issue 7 - 16/9/10
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