Installer’s Guide
6
Pre Boosted Gas Solar Water Heater MP15
H4099 4099 Rev. D
Installer’s Guide
• Pipes
must
be fully insulated
with
UV stabilized insulation suitable for
solar working temperatures. We
recommend Armaflex DuoSolar /
Solar insulation, minimum 13mm
thick (or as per local regulations).
Note: Warranty will be void
if this minimum insulation
requirement is not used.
• It is
critical
to stop any chance of an
air lock developing, so ensure that:
– no pipework is higher than the air
bleed valve
– flow and return pipes from the solar
collectors to the water storage tank
have a minimum of 5° continuous fall
– pipes have no high points that
allow air to be trapped
– the minimum number of bends in
the pipes are used.
• Flow and return lines should be
neatly installed and hidden inside the
roof cavity if possible.
• Take care when running flow
and return lines through the roof,
cladding and the eaves.
Note: Where roof and
the eaves are made from
asbestos, specialised handling
and advice is necessary.
Pipes must be fully
insulated with UV
stabilized insulation
suitable for solar working
temperatures, minimum
13mm thick (refer to local
regulations)
Minimum 5°
continuous fall
To collectors
Non continuous
fall
To collectors
Incorrect
Correct
Ensure flow and return pipes from the solar collectors to the
water storage tank have a minimum of 5° continuous fall
Pipes must have no
high points that allow
air to be trapped
No pipes can be higher than
the automatic air vent valve