Servicing And Maintenance; Fault Finding - gledhill Torrent GreenHeat OV TGH140 Design, Installation & Servicing Instructions

SERVICING AND MAINTENANCE

Annual Servicing
No annual servicing of the Torrent GreenHeat is necessary.
However, if required, a hot water performance test can be carried out to prove the
appliance is working satisfactorily and within its speci cation.
If it is decided to carry out the above test, the water level in the top cistern should
also be checked and if necessary topped up.
Changing Components
Free of charge replacements for any faulty components are available from Gledhill
during the in-warranty period on return of the faulty part (normally 12 months).
After this, spares can be obtained direct from Gledhill Spares, or through any of the
larger plumbers merchants/specialist heating spares suppliers.
Help and advice is also available from the Technical Helpline on 01253 474584.
However, all components are readily accessible and can be changed quickly and easily
by the installer using common plumbing/electrical practice.
Note: All maintenance work on the Torrent GreenHeat must be carried out by
a competent trades person.
After servicing, complete the relevant Service Interval Record section of the Benchmark
Checklist located on the inside back pages of this document.
SERVICING AND MAINTENANCE
Page 40
SERVICING AND MAINTENANCE
UNSATISFACTORY Is the power supply
NO
HOT WATER to the PHE controller
PERFORMANCE switched on
YES
Is the model
Is the boiler
YES
suitable for the NO
thermostat
hot water
set to max?
requirement?
YES
NO
Is the Torrent
Adjust boiler
NO
thermostat set
thermostat to
too low?
maximum
YES
Correct Torrent
thermostat setting
(set to 75ºC)
Is the boiler
Report to the NO
NO
thermostat
boiler
adjustable?
manufacturer
YES
Adjust to
maximum
Descaling
of the PHE
required
YES
Is heat
NO
exchanger
scaled up
internally?
(Indicated by
reduction of
flow rate)
Alter pipe
NO
sizes
Page 41
Follow the
Switch it on

fault finding

chart
Change for
larger model
Is the boiler
Change boiler
NO
output at least
for larger
10% more than the
model
rad. loading?
YES
Does the boiler
flow reach
temperature?
YES
Does the temp
rise across the
boiler exceed 11°C
YES
Increase boiler
NO
pump setting
NO Is the temp.
H.W. flow too
rise too high?
great?
YES
YES
Regulate flow
from outlet fitting
Is air
(tap)
trapped in
the primary
circuit?
NO
Is the circuit
YES
correctly sized?
Fit an air vent
YES
Investigate for
Is the temp.
blockage NO
rise now
satisfactory?
YES
FAULT FINDING