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221954D
8.9 Thermostatic Radiator Valves
If thermostatic radiator valves are fitted care must be taken to
ensure that an adequate flow rate through the boiler when they
close, refer to the current issue of BS7478 for guidance.
8.10 Operational Checks and Completion
Adjust the boiler temperature control and any system controls
to their required settings. In addition it is necessary to complete
the "Benchmark" logbook.
For IE, it is necessary to complete a "Declaration of Conformity"
to indicate compliance to I.S.813. An example of this is given in
the current edition of I.S.813.
Do not attempt to adjust the thermostat calibration screw.
Operate the boiler again on full service and check that the
balancing is satisfactory, making adjustments as necessary.
Fit the front cover by hooking it under at the top and securing
with the screws previously removed, see diagram 8.5.
Fit the controls cover by hooking into the sliders and pushing it
back as far as it will go, see diagram 8.6.
Testing Flue Gases:
If any doubt exists that the flue products
are not exhausting correctly, investigate by use of a gas
analyser (FGA).
8.11 Protection against Freezing
If the boiler is to be out of use for a period of time during severe
weather conditions we recommended that the whole of the
system, including the boiler, be drained off to avoid the risk of
freezing up.
Diagram 8.6
CONTROLS
COVER
SLIDERS
RETAINING
CLIP
7364
8 Commissioning