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3. INSTALLER IMPORTANT POINTS
Please read all instructions before fitting this appliance
• The installer shall instruct the user on the operation of the boiler, safety
devices contained within the boiler and on the location of the filling loop and
how to re-pressurize the system if the water pressure falls.
• During servicing the boiler the condensate trap needs to be cleaned.
• The installer should then hand over the instructions indicating the included
Benchmark Commissioning Checklist that has been completed.
• It is required under Gas Safe Regulations for the installation to be notified to
Building Control (Gas Safe Notification).
• Before proceeding to commission the boiler check the gas inlet pressure is
20mbar (NG) or 37mbar for Propane.
• Combustion analysis with a correctly calibrated and certificated analyzer is
essential for safe commissioning of the boiler.
• A pressure reducing valve set to 3.5 bar must be fitted if supply mains
pressure is above 4 bar.
• A suitable scale reducer must be fitted if water hardness is above 200 ppm.
• The user should be instructed to keep the instructions in a safe place for
servicing and future reference.
• It is important to keep the boiler clear of dust during the installation. In
particular, do not allow debris to enter the flue connection at the top.
• Before fitting the boiler ensure that the pipe work that you are installing is
connected to the appropriate connections on the boiler.
It is important to thoroughly flush the water circuits, after isolating the boiler,
in order to remove any fluxes and debris from them. This should be done
particularly where boilers are being fitted to existing radiator circuits (please
refer to current Standard Codes of Practice).
• BS 7593:2006 for the details to clean DHW and Central heating system).
• This boiler has been factory set but adjustment may be required to the
heating input in order to match the individual heating demand. This can be
done by changing parameter 3 (= max. power CH) or parameter 4
(= max. power domestic water).
• Please do not use the pressure relief valve as a means of flushing the
system.
• Remember that after hot water draw of a possible delay may occur before
the heating system will fire up.
• All fluxes, residues and cleaner must be flushed from pipe-work and
radiators prior to commissioning.
• External expansion vessels are best connected water side downwards to
allow correct draining/cleaning of system and to prolong the life of the vessel
diaphragm.
• Note: an anti-cycle delay time can be set up to a maximum of 15 minutes by
adjusting parameter P as described in § 10.3.
• If you experience any problems please refer to the installation and
commissioning guidelines within the boiler instruction manual. If necessary,
please contact Intergas Heating Ltd (See § 1.8).
Remember it is a requirement to complete the Benchmark code of practice
logbook before leaving the installation. You are also required to register the boiler
through the Gas Safe registration scheme.
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