Technical data

down
v) Turn off the electrical supply
w) Close the side panel
x) Set thermostat to desired setting
y) Ensure that the user is familiar with the
heater and its controls and that the user is
satisfied with the commissioning and testing,
and that he is aware of the instructions within
the manual
It is strongly advised that the commissioning
engineer runs through the lighting, shutdown,
and general safe and efficient running of the
heater before hand over.
3.4 Hand over
Upon satisfactory completion of
commissioning and testing, a record of
commissioning information (contact name
date etc) should be made in the log book left
with the heater by the commissioning
engineer together with the user instructions
At the same time the user should be made
aware of the most efficient and economical
methods of operation.
The user must be familiar and satisfied with
the safety, ignition, shutdown, and general
operational procedures.
4.0 Servicing
Warning
It is a requirement that only qualified
personnel are allowed to carry out installation
commissioning or servicing.
In addition only spare parts recommended by
the manufacturer may be fitted, and the
installer should provide a list of
recommended spare parts that are available
through the manufacturer or his agent (see
section 8)
Before commencing any maintenance or
servicing work the heater must be shut down
and allowed to cool, and have the gas and
electric supplies to it turned off at the supply
cock and isolator respectively.
Always test for gas soundness after
completing any service work particularly
if this has necessitated the removal and /
or replacement of gas carrying
components
It is advisable that routine inspections are
carried out on a frequent basis, servicing
must also be carried out regularly, and in
accordance with the manufacturers
recommendations i.e. at a maximum interval
of one year. In certain applications the
frequency of servicing will have to be
increased, this to a large extent is governed
by the working environment, and both the
manufacturer and the installer will be able to
offer further advice.
A safe working platform giving good access
to the heater is required,
Clean all accessible surfaces including the
outside of the tubular heat exchanger by
removal of the fan assembly and the louvres.
Check for panel damage and that all
fasteners are present and secure.
Visually check all electrical wiring for signs of
damage, possibly through contact with hot
surfaces, check conduit for signs of chaffing
and for security . Check all terminals are
secure and free from escaped / stray
conductor strands.
4.1 Servicing procedure - major
component parts
Heat exchanger
Remove louvres and fan assembly and carry
out visual inspection of the tubular heat
exchanger using an inspection lamp and
mirror.
Check seams and joints for perforations.
Check for severe corrosion and splits in the
heat exchanger.
Check that there are no blockages and that
there is not an excessive build up of soot
within the heat exchanger.
If required remove the burner manifold
allowing access for cleaning, with a flexible
flue brush and vacuum cleaner.
Warning If the heat exchanger is found to be
perforated the heater must not be fired until a
replacement heat exchanger has been fitted
Injectors and Manifold
Undo the gas pipe connection
Remove the 6 manifold fixing screws.
Remove the manifold and injector assembly
from the right hand side of the heater.
Check that the manifold is straight, the