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Solar Pool Heating System -- Installation & User Manual
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Page 51
27
Optimizing Collector Pressure
27.1
Installing the Pressure Gauge
The pressure gauge
must be installed on the return line preferably near eye level.
Drill
into the PVC pipe using an 8.5mm drill. Insert the rubber grommet into the hole
tapered end first. Use pink Teflon tape on brass tread, lubricate the brass barb with
silicon spray prior to insertion into the grommet.
Note: PVC plastic should be
preheated to 50
˚C using a heat gun
or it may split when drilling.
27.2
Pressure Check Procedure
To make pressure adjustment depending on over-pressure or under-pressure situations,
you’ll need to install either
a ball by-pass valve (18) to reduce pressure or a ball break valve (16) on the return line to increase back pressure
(both at near ground level for easy adjustment). Manual type systems need only the adjustable 3-way ball valve.
Collector pressures can then be adjusted as follow:
