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61
kling sound of the closed circuit fluid returning into
er by placing your ear against the side toward the
he solar circuit, a trickling sound will
ba
k:
sconnected at the solar storage tank.
the hot sensor lead at the solar storage
e work betwe
r pump, located behind the lower front
e tank, is fully open.
11. Check the closed circuit fluid is circulating around the solar circuit.
To check circulation:
Listen for the tric
the heat exchang
top of the solar storage tank.
If the fluid is circulating around t
be heard as the fluid returns
If no trickling sound is heard, chec
¾ the hot sensor lead is di
If connected, disconnect
tank (refer to step 9).
¾ the isolation valve in the pip
exchanger and the sola
cover of the solar storag
ck into the heat exchanger.
en the outlet of the heat
Warning: Switch off the electrical supply at the isolating
switch to the solar storage tank before entering the area inside
the solar storage tank behind the front cover.
o check
roof space and
g, rectify any leaks in the solar circuit.
t exceeded the maximum allowable height.
imum recommended
solar
storage tank, or install a second solar pump, or relocate the solar
storage tank closer to the solar collectors. Refer to “Pipe
Lengths” on page 33.
If closed, open the isolation valve on the outlet of the heat
exchanger (refer to step 4).
¾ there is no leakage from the solar circuit. It is important t
all of the solar circuit pipe work, including in the
on the roof.
If leakin
¾ the height from the base of the storage tank to the top of the
collectors has no
¾ the length of solar cold and solar hot pipe has not exceeded the
maximum recommended pipe length.
If the maximum allowable height or the max
pipe length has been exceeded, it may be necessary to relocate
the solar collectors to either a lower level or closer to the