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INSTALLATION – SOLAR CONTROL UNIT
To connect the solar hot pipe to the solar storage tank:
•
Insulate the solar non return valve of the air bleed valve and solar non
return
valve
insulation (13) provided.
•
Fit the air bleed valve and solar non return valve assembly (11) to the solar
hot water inlet of the solar storage tank. Ensure the bleed valve outlet is
pointing vertically downwards.
•
Connect a DN15 copper drain line to the bleed valve to carry the discharge
clear of the water heater and solar control unit (refer to
page 7), using the compression nut and olive provided.
•
Fit a ½" x ½" hex nipple (1) to the exposed end (inlet) of the air bleed valve
and solar non return valve assembly (11) (ensure the compression end of
the nipple is exposed).
•
Connect the solar hot pipe (from the collector) to the nipple (1) on the air
bleed valve and solar non return valve assembly (11) using the
compression nut (5) and olive (6) provided.
•
Insulate the tee and bleed valve, from the solar hot pipe to the drain line of
the bleed valve, with the 150 mm long x 35 mm diam insulation (13) and
secure with the cable ties (14) provided.
•
Insulate the drain line from the bleed valve with closed cell polymer
insulation or similar (minimum thickness 13 mm). The insulation must be
weatherproof and UV resistant if exposed.
from solar
collectors
refer to the
installation diagram
on page
5 for
assembly details of
solar cold and hot
pipe connections
Solar Storage Tank with Solar Control Unit
assembly (11)
with
the
50 mm long
to solar
collectors
4
x
35 mm diam
"Bleed Valve Drain"
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