Important Information - Dimplex ASCARI MA12 Installation Manual

2.2 - Important Information

• The information given in this booklet is a guide only. All installations must follow the current
regulations for this type of device and where no information or conflicting information is given in
this guide to that of the current regulations, the current regulations will apply.
• Disconnect the Electricity Supply before attempting to remove the cover of the boiler.
• The boiler weighs 38kg and requires two persons to lift and install the product. Please ensure all
mounting fixings and the wall onto which it is to be installed are sufficiently strong to take the
weight of the unit plus its water contents.
• The heating system must be installed by a competent person and to current regulations in force at
the time.
• All wiring should conform to the regulations in force at the time. The appliance is approved to a
protection rating of IPX1. Therefore if the appliance is to be installed in a room containing a bath
or a shower, any electrical switch or control utilising mains electricity must be so situated that it
cannot be touched by a person using the bath or shower. Attention is drawn to the requirements
of the current BS 7671 (I.E.E Wiring Regulations) and in Scotland the electrical provisions of the
Building Regulations applicable in Scotland.
• Complete all plumbing work before connecting the boiler to the electricity supply.
• This appliance must be earthed!
• The boiler should be permanently connected to the electricity supply, direct from a 63A fused
supply on the consumer unit via a double pole linked switch with minimum contact gap of 3mm.
No other appliances should be powered from this supply.
• The expansion vessel is pre-charged to 1 bar (0.1MPa). During the installation process and
before operating the boiler this should be checked using a suitable pressure gauge.
• A 3 bar (0.3MPa) pressure relief device is incorporated within the product, the cold system pressure
should not exceed 1.5bar (0.15MPa).
• When using with radiators fitted with TRV controls the heating system must have a bypass radiator
fitted capable of circulating water at 350litres/hour.
• The system should be flushed prior to connecting the boiler to remove all particles from the
pipework. Do not use the fitted pressure relief valve to flush the system as particles trapped in the
valve will cause incorrect valve operation.
• The outlet of the pressure relief valve should be left open to the atmosphere, any connection to
the outlet pipe must be of a minimum diameter of 15mm, should fall continuously and should
terminate so that water/steam may visibly and safely discharge. Should any water or steam be
seen to be exiting from this outlet the boiler electricity supply should be switched off and the
Dimplex customer service centre contacted.
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