TM005 Rheem Solar Hiline Service Instructions REV D
D.O.I 20/02/2009
This document is stored and maintained electronically by
Service. All printed copies not bearing this statement in RED are deemed “uncontrolled”.
17
Fault Finding (Chart 2)
- Reinstall on a side pitch roof stand
- Relocate to a northerly aspect.
- Add an extra collector
- Accept reduced solar gain.
YES
Are there trees or
buildings shading the
collectors at any
time of the day?
Are the collectors facing
within 45º of north?
NO
YES
Are the collectors dipping
in the centre?
Dipping of the collectors can
create an air lock or heat trap
preventing thermosiphoning.
This may be due to
insufficient roof strength
NO
YES
The ideal collector inclination
is equal to the local latitude.
The minimum collector
inclination for the system to
operate is 10º.
Are the collectors lying
too flat?
NO
YES
Is collector glass
broken or dirty?
NO
YES
Is the surface coating on
the collector absorber
plate deteriorating?
Does the hot pipe have a
continuous rise to the
tank?
NO
YES
NO
NO
YES
Collectors not in optimum position.
Discuss options with client:
Advise customer to prune trees if
possible or reposition heater and
collectors to shade free location.
Advise customer to have roof
strengthened or pack up the collectors
to eliminate air lock or heat trap.
Reposition heater and collectors
onto a flat roof stand.
Clean glass or replace collector.
Replace collector.
Refit the hot pipe with a continuous
rise to the tank.
2
2.1
