HELIOCOL RESIDENTIAL INSTALLATION MANUAL
40
TROUBLESHOOTING (CONTINUED)
PROBLEM
CAUSE
SOLUTION
SOME OF THE SOLAR PANELS
ARE WARM TO THE TOUCH
WHILE OTHERS ARE COOL TO
THE TOUCH
1. There is not equal flow through all
of the panels. Warm panels indicate
low water flow. Pump issue.
A. Be sure filter is clean. Backwash
to reduce pressure.
B. The pump may not be providing
enough water to the solar system.
Check water flow using a flow
meter. Increase pump horsepower if
needed to maintain recommended
flow.
C. If there is a suction type cleaner in
the pool, remove it. If this eliminates
the problem, use it only when the
solar system is off.
2. There is not equal flow through all
of the panels. Warm panels indicate
low water flow. Install issue.
A. If the system is a single row array
and there is adequate flow, use the
(HBV) on the return line to throttle
the flow back to produce more back
pressure on the system. This will
even out the flow through the panels.
If the array contains more panels
than the maximum recommended
on page 7 of this manual, change the
array to a double row or single row
split feed as show in Fig. 6.2 and 6.3.
B. If the system is a double row or a
single row split feed array and there
is adequate flow, install a ball valve
on the return side of the set of panels
that are the coolest to the throttle.
Back the flow through these panels
and force more water through the
warmer panels. If any section of the
array contains more panels than the
maximum recommended on page
9 of the manual, make changes as
needed to correct this.
