Commissioning; Removing The Ontrol Anel - Ariston ecoCOMBI 27 MFFI Installation And Servicing Instructions

3. COMMISSIONING

3.1. I P
NITIAL REPARATION
3.2. R
EMOVING THE
1
A
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.
F
ILLING THE
Remove the panels of the case and lower the control panel (see section 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
permanently.
Close all air release valves on the central heating system.
Gradually open valve(s) at the filling point (filling-loop) connection to the central heating
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 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.
F
ILLING OF THE
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
G S
AS UPPLY
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 treatment of
water in domestic hot water central heating systems.
During this operation, we highly recommend the use of a central heating flushing detergent
(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 the system such as Fernox MB-1 or equivalent is strongly
recommended to prevent corrosion (sludge) damaging the boiler and system.
Failure to carry out this procedure may invalidate the appliance warranty.
C
To remove the front casing panel,
ASING
follow these steps:
1. Remove the screws "A" and
lower the control panel;
2. Remove the screws "B";
3. Lift and unhook the case panel.
2
B
A
H S :
EATING YSTEM
D.H.W. S :
YSTEM
:
B
3
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