Technical data

EM RANGE GAS FIRED
- 14 -
• Adjust burner as per manufacturers
instructions
• Consult Benson Heating Technical
Department
(s) Complete commissioning report and provide
operating instructions for the user, high-light the
fact that the manufacturer recommends that in
the interests of safety and efficiency the EM unit
is serviced on a regular basis by qualified and
competent persons.
(t) Set all controls to the requirements of the
user
4,3 Commissioning - hand over
(a) Upon full and satisfactory completion of
commissioning, a record of commissioning
information (contact, date, etc) should be left
with the unit.
(b) The commissioning engineer must ensure
that the user is familiar with the safe and
efficient use of the appliance, detailing the
function of all controls, and main components
(c) The user should be made aware of the
following in particular
• Lighting, shutdown, and operational
information.
• Safety features, data plate, and labelling.
• The requirement for regular inspection -
especially if the EM unit is within a more
demanding environment - and the need for
regular servicing, carried out by competent
and qualified persons.
5,0 Servicing
Warning
Servicing must be carried out on a regular basis,
the maximum interval between services being 1
year or 1000 hours. It is a requirement that only
suitably qualified and competent persons are
allowed to undertake servicing.
Before any maintenance or servicing work is
carried out, the appliance must be shut down
and allowed to cool. The gas and electric
supplies must also be turned off at the gas cock
and isolator respectively.
Warning
Only approved spare/replacement parts can be
fitted, failure to comply with this can
compromise the safe and efficient running of the
EM unit, and can also invalidate any warranty
claim.
5,1 Planned Servicing
In order to maintain the efficient operation of
the Exchange Module and its accompanying air
handling unit it is recommended that the
following planned servicing and preventative
maintenance programme is adopted by the user.
Quarterly Inspection
• Visual inspection of the burner
• Clean and check ionisation probes
• Check air pressure switch is operational
Bi-Annual Inspection
As per quarterly inspection, plus...
• Combustion check
Annual Inspection
As per half year inspection, plus...
• Combustion circuit inspection and cleaning
• Electrical connections
• Volumetric air test
• Gas Supply
• Burner
•
Flue
• Report
5,2 Servicing Procedure - Major Component
Parts
Flue
A visual inspection should be carried out to
ensure that the flue remains adequately
supported, both internally as well as externally,
and that the various joints are effectively sealed.
Inspection covers, where fitted, should be
removed and the flue checked to see whether
cleaning is required. If inspection covers are not
fitted the gas exit duct and flue spigot will
provide not only an indication of the cleanliness
of the flue, but will also enable access for
cleaning. The flue should also be checked for
signs of internal and external corrosion. The
presence of the flue terminal should be checked
as should the effectiveness of the seal between
the roof and the flue.
If a condensate trap and drain facility is fitted
this should be checked to ensure that it
continues to function correctly, and the drainage
of condensates is not impaired.
Heat Exchanger
The heat exchanger requires a visual inspection
at least once per year, this should be
accompanied by cleaning. It is recommended
that a flue brush and vacuum cleaner are used to
facilitate this. Access to the heat exchanger is
gained through the removal of the inspection
covers on the back panel and heat exchanger
tube bank. Servicing and cleaning should be
performed as follows.