Solahart 151J, Руководство пользователя

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INSTALLATION INSTRUCTIONS - ALL MODELS
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The expansion control valve and its easing gear must be accessible from ground or floor level. It must not be installed
either on the roof or in the ceiling space, unless it is an accessible trafficable area or local regulations allow it to be
installed in these locations. Extend the cold water line from the expansion control valve to the cold water inlet fitting on the
water heater.
The valve, if installed within 500 mm of the water heater, must be insulated with closed cell polymer insulation or similar
(minimum thickness 9 mm) and the insulation installed so as not to impede the operation of the valve. The insulation must
be weatherproof and UV resistant if exposed.
RELIEF VALVE DRAIN
DN15 copper drain lines must be fitted to the temperature pressure relief valve and expansion control valve. Connect the
drain lines to the valves using disconnection unions. The drain line from the valve to the point of discharge should be as
short as possible, have a continuous fall all the way from the water heater to the discharge outlet and have no tap, valves or
other restrictions in the pipe work.
A drain line from a relief valve must comply with the requirements of AS/NZS 3500.4. A drain line must be no longer than
9 metres with no more than three bends greater than 45° before discharging at an outlet or air break. The maximum length
of 9 metres for a drain line is reduced by 1 metre for each additional bend required of greater than 45°, up to a maximum of
three additional bends. Where the distance to the point of final discharge exceeds this length, the drain line can discharge
into a tundish.
Subject to local regulatory authority approval, the drain lines from the temperature pressure relief valve and expansion
control valve from an individual water heater may be interconnected.
The outlet of a drain line must not discharge onto roofing materials, roof gutters or onto paved areas. It must be in such a
position that flow out of the pipe can be easily seen, but arranged so discharge will not cause injury, damage or nuisance.
The termination point of a drain line must comply with the requirements of AS/NZS 3500.4.
In locations where water pipes are prone to freezing, drain lines must be insulated, must not exceed 300 mm in length and
are to discharge into a tundish through an air gap of between 75 mm and 150 mm. If a drain line discharges into a tundish,
the drain line from the tundish must be not less than DN20. The drain line from a tundish must meet the same requirements
as for a drain line from a relief valve.
Where a drain line crosses over a metal roof, the pipe work must be fully insulated with weatherproof lagging to offer
corrosion protection to the metal roof against water runoff over the copper pipe. The insulation must be UV resistant if
exposed.
Warning: As the function of the temperature pressure relief valve on this water heater is to discharge high temperature
water under certain conditions, it is strongly recommended the pipe work downstream of the relief valve be capable of
carrying water exceeding 93°C. Failure to observe this precaution may result in damage to pipe work and property.
WATER PRESSURE
Solahart advises the limiting of water pressure to 500kPa with a pressure limiting valve to suit this solar water heater and
its associated pressure relief valves. Refer to local plumbing codes (e.g. AS/NZS3500.4) for specific requirements of
permissible supply pressure and associated reduction/limiting valve type applicability.
COLD SUPPLY LINE VALVE LOCATION
Solahart supply a TRIO valve (part no 203701) in the parts kit.
The TRIO valve is a combination cold water isolation valve,
non-return valve and water strainer and enables the water to be
turned off for servicing purposes. This must be installed on the
cold water line to the water heater. The ECV must always be
installed after the TRIO valve. An acceptable arrangement is
shown in the diagram.
The TRIO valve and expansion control valve must be accessible
from ground or floor level to enable homeowner operation
without the need for a ladder. They must not be installed either
on the roof or in the ceiling space, unless it is an accessible
trafficable area or local regulations allow it to be installed in
these locations. Extend the cold water line to the cold water inlet
fitting on the solar storage tank.