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CONNECTIONS – PLUMBING
BLEED VALVE DRAIN
A copper drain line must be fitted to the bleed valve to carry the discharge clear
of the water heater and solar control unit. Connect the drain line to the bleed
valve using a disconnection union. The pipe work from the bleed valve to the
drain should be as short as possible and fall all the way from the valve 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 AS/NZS 3500.4) - but arranged so water discharge
will not cause injury, damage, nuisance or splashing. The water discharged
may be of a high temperature under certain conditions. The drain line must be
fully insulated with closed cell polymer insulation or similar (minimum thickness
13 mm). The insulation must be weatherproof and UV resistant if exposed.
SADDLING - PIPE WORK
To prevent damage to the cylinder when attaching pipe clips or saddles to the
water heater jacket, we recommend the use of self-drilling screws with a
maximum length of 13 mm. Should pre drilling be required extreme caution
must be observed when penetrating the jacket of the water heater.
Note: Damage to the cylinder as a result of saddling to the jacket will void
the warranty.
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