Solahart Streamline Closed Circuit, Руководство пользователя

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CONNECTIONS – PLUMBING
27
RELIEF VALVE
The temperature pressure relief valve is shipped behind the lower front cover of the water heater. The
temperature pressure relief valve must be fitted before the water heater is operated. Before fitting the
relief valve, make sure the probe has not been bent. Seal the thread with Teflon tape - never hemp.
Make sure the tape does not hang over the end of the thread.
Screw the valve into the correct opening
(refer to the installation diagram on page 21 ) leaving the valve
outlet pointing downwards. Do not use a wrench on the valve body - use the spanner flats provided.
RELIEF VALVE DRAIN
Temperature Pressure Relief Valve
A copper drain line must be fitted to the relief valve to carry the discharge clear of the water heater.
Connect the drain line to the relief valve using a disconnection union. The pipe work from the relief
valve to the drain should be as short as possible and fall all the way from the water heater with no
restrictions. It should have no more than three right angle bends in it. Use DN15 pipe.
The outlet of the drain line must be in such a position that flow out of the pipe can be easily seen (refer
to AS/NZS 3500.4) - but arranged so hot water discharge will not cause injury, damage or nuisance.
The drain line must discharge at an outlet or air break not more than 9 metres from the relief valve.
In locations where water pipes are prone to freezing, the drain line must be insulated and not exceed
300 mm in length. In this instance, the drain line is to discharge into a tundish through an air gap of
between 75 mm and 150 mm.
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.
Solar Circuit Relief Valve
Ensure the outlet of the solar circuit relief valve is facing toward the rear of the water heater installation.
A copper drain line must be fitted to the relief valve to carry the discharge clear of the water heater.
Connect the drain line to the relief valve using a compression nut and brass or copper olive. The pipe
work from the relief valve to the drain should be as short as possible and fall all the way from the water
heater with no restrictions. It should have no more than three right angle bends in it. Use DN15 pipe.
The outlet of the drain line must be in such a position that flow out of the pipe can be easily seen (refer
to AS/NZS 3500.4) - but arranged so hot water discharge will not cause injury, damage or nuisance.
The drain line must discharge at an outlet or air break not more than 9 metres from the relief valve.
In locations where water pipes are prone to freezing, the drain line must be insulated and not exceed
300 mm in length. In this instance, the drain line is to discharge into a tundish through an air gap of
between 75 mm and 150 mm.
EXPANSION CONTROL VALVE
Local regulations may make it mandatory to install an expansion control valve (ECV) in the cold water
line to the water heater. In other areas, an ECV is not required unless the saturation index is greater
than +0.4 (refer to
“Water Supplies” on page 52). However, an ECV may be needed in a corrosive
water area where there are sufficient quantities of silica dissolved in the water.
The expansion control valve must always be installed after the non return valve and be the last valve
installed prior to the water heater
(refer to diagram on page 26 ) . A copper drain line must be run
separately from the drain of the relief valve.