Ariston EuroCombi Type C A27 MFFI Manuale di istruzioni per l'installazione - Pagina 17
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3
COMMISSIONING
3.1
Initial Preparation
Supplied By www.heating spares.co Tel. 0161 620 6677
MTS (GB) Limited support the
you will find a copy of the
ed in the presence of your customer, they are shown how to us it, and it is
signed by them. Please instruct your customer that they must have their
logbook with them whenever they contact a service engineer or us.
Preliminary electrical system checks to ensure electrical safety must be carried out by a
competent person i.e. polarity, earth continuity, resistance to earth and short circuit.
Filling the Heating System:
Remove the panels of the case and lower the control panel (see point 3.2. for further
information).
Open the central heating flow and return cocks supplied with the connection kit.
Unscrew the cap on the automatic air release valve one full turn and leave open per-
manently.
Close all air release valves on the central heating system.
Gradually open valve(s) at the filling point (filling-loop) connection to the central heat-
ing system until water is heard to flow, do not open fully.
Open each air release tap starting with the lower point and close it only when clear
water, free of air, is visible.
Purge the air from the pump by unscrewing anticlockwise the pump plug and also
manually rotate the pump shaft in the direction indicated by the pump label to ensure
the pump is free.
Close the pump plug.
Continue filling the system until at least 1 bar registers on the pressure gauge.
Inspect the system for water soundness and remedy any leaks discovered.
Filling of the D.H.W. System:
Close all hot water draw-off taps.
Open the cold water inlet cock supplied with the connection kit.
Open slowly each draw-off tap and close it only when clear water, free of bubbles, is
visible
Gas Supply:
Inspect the entire installation including the gas meter, test for soundness and purge,
all as described in BS 6891:1988.
Open the gas cock (supplied with the connection kit) to the appliance and check the
gas connector on the appliance for leaks.
When the installation and filling are completed turn on the central heating system (sect.
3.4) and run it until the temperature has reached the boiler operating temperature. The
system must then be immediately flushed through.
The flushing procedure must be in line with BS 7593:1992 Code of practice for treat-
ment of water in domestic hot water central heating systems.
During this operation, we highly recommend the use of a central heating flushing deter-
gent (Fernox Superfloc or equivalent), whose function is to dissolve any foreign matter
that may be in the system.
Substances different from these could create serious problems to the pump or
other components.
The use of an inhibitor in system such as Fernox MB-1 or equivalent is strongly recom-
mended to prevent corrosion (sludge) damaging the boiler and system.
Failure to carry out this procedure may invalidate the appliance warranty.
initiative. Within the information pack
logbook. It is important that this is complet-
17