6
OPERATING INSTRUCTIONS FOR THE USER
THE GAS SAFETY (INSTALLATION AND USE) REGULATIONS
1996. It is the law that all gas appliances are installed by a
registered person, in accordance with the above regulations.
Failure to install appliances correctly could lead to prosecu-
tion. It is in your own interest, and that of safety, to ensure
that the law is complied with.
It is essential that the appliance is correctly earthed. An
electricity supply of 240 V - 50 Hz fused at 3 A is required.
Read these instructions carefully before attempting to oper-
ate the appliance.
1.1 INTRODUCTION
The Sime “MURELLE HE 25/55 - 30/55” family is a fully
automatic, wall mounted, room sealed, fan assisted range of
combination boilers.
The D.H.W. storage tank allows a variety of requests to be
met thanks to the abundance of water.
When operating in summer mode, the central heating is not
operational however the appliance continues to supply hot
water whenever it is required.
1.2 APPLIANCE OPERATION
Priority is given to the domestic hot water unless this is on a
separate time control.
On demand, domestic hot water is supplied from the internal
cylinder at the storage temperature. The initial 55 litres will
be at storage temperature. after this the water tempera-
ture will alter according to the flow rate (see 1.3 on page 5
of the installation guide).
When the demand ceases the cylinder will be heated to the
desired storage temperature, then if required the central
heating will resume.
1.3 OPERATING INSTRUCTIONS
1.3.1 Boiler ignition (fig. 24)
The first ignition of the boiler must be carried out by qualified
technical personnel. Successively, if it is necessary to start
up the boiler again, adhere strictly to the following instruc-
tions: open the gas tap to allow the flow of the fuel.
Move the mains supply switch of the system to “ON”.
A sequence of checks will be carried out and the display
shows as in fig 24, indicating the pressure of the system.
Correct functioning is indicated by the presence of a blue
luminous bar.
Winter
Press the key of the controls (pos. 2) to activate the win-
ter mode functioning (heating and D.H.W.). The display will be
as shown.
Fig. 24
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