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INSTALLATION – SOLAR STORAGE TANK
18
The top of the solar storage tank must be a minimum of 500 mm below the bottom of the solar
collectors for the system to operate correctly.
As a guide the following requirements extracted from the Australian Gas Installations Standard
AS 5601, must be observed.
• At least 300 mm between the top of the gas booster and the
eaves.
• At least 300 mm between the gas booster and the edge of
any opening into the building, measured horizontally along
the wall.
• At least 300 mm between the gas booster and a return wall
or external corner, measured horizontally along the wall.
• At least 1500 mm below any openable window.
• At least 1500 mm between the gas booster and any opening
into a building, in the direction of the flue discharge.
• At least 500 mm between the gas booster and a fence, wall or other obstruction, in the direction of
the flue discharge.
The water heater can be turned through 90°, either to the left or to the right, with the discharge from the
flue terminal discharging parallel to the wall. It is important the distance requirements from the
Australian Gas Installations Standard AS 5601 are observed.
FROST PROTECTION
The water heater has a frost protection system. The frost protection system will protect the water heater
from damage, by preventing ice forming in the waterways of the water heater, in the event of freezing
conditions occurring.
The solar collectors and solar cold and solar hot pipes only contain closed circuit fluid when the pump is
operating during periods of solar gain when heating is required. When the solar pump stops operating,
the closed circuit fluid drains back into the storage tank heat exchanger. The closed circuit fluid is an
anti-freeze agent which, when mixed to the correct specification, can withstand temperatures of -17°C
before it may freeze.
The frost protection system to the gas booster will be rendered inoperable if electrical power is not
available at the water heater. Damage to the water heater caused by freezing of the pipe work to or
from the water heater is not covered under warranty. Refer to AS/NZS 3500.4 for precautions to be
taken for installations in frost prone areas. The water heater is not suitable for installation in areas
where the ambient temperature falls below -20ºC (including wind chill factor).