ABOUT YOUR WATER HEATER
8
PIPE WORK AND INSULATION
The solar hot and solar cold pipe work between the solar storage tank and the
solar collectors MUST BE of copper and fully insulated with closed cell polymer
insulation or similar (minimum thickness 13 mm). The insulation must be
weatherproof and UV resistant if exposed. The insulation is essential to assist
in providing freeze protection, will offer corrosion protection to a metal roof
against water runoff over the copper pipe, assist in avoiding accidental contact
with the solar pipe work and also reduce pipe heat losses.
The insulation must be fitted up to the connections on both the solar collectors
and the solar storage tank, as very high temperature water can flow from the
solar collectors to the solar storage tank under certain conditions.
Plastic pipe MUST NOT be used, as it will not withstand the temperature and
pressure of the water generated by the solar collectors under certain conditions
(refer to Warning on page 38).
DOES THE WATER QUALITY AFFECT THE WATER HEATER?
The water heater is suitable for most public water supplies, however some
water qualities may have detrimental effects on the cylinder, solar collectors
and fittings. If you are in a known harsh water area you must read page 56.
If you are not sure, have your water quality checked against the conditions
described on page 56.
HOW LONG WILL THE WATER HEATER LAST?
There are a number of factors that will affect the length of service the water
heater will provide. These include the water quality, the water pressure,
temperature (inlet and outlet) and the water usage pattern. However, your
water heater is supported by a comprehensive warranty (refer to page 60).
ANODE PROTECTION
The anode(s) installed in your water heater will slowly dissipate whilst
protecting the cylinder. The life of the water heater cylinder may be extended
by arranging for an authorised person to inspect the anode(s) and replacing it if
required.
The suggested time after installation when the anode(s) should be inspected is
8 years.
For softened water supplies or in areas of poor water quality, it is
recommended the anode be inspected 3 years earlier than shown (refer to
“Water Supplies” on page 56).