Ariston microGENUS HE 32 MFFI Technical Information download pdf (Page 22)

MTS (GB) Limited support the initiative. Within

the information pack you will find a copy of the

logbook.

It is important that this is completed in the

presence of your customer, they are shown how to use it,

and it is signed b

y 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

saf

ety must be carried out by a competent person i.e.

polarity, earth continuity, resistance to earth and short

circuit.

FILLING THE HEATING SYSTEM:

Lower the control panel and remove the case panels

(see

SECTION 2.12 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 lowest point

and close them only when clear water, free of air, is

visible.

Purge the air from the pump by unscrewing the

pump plug anticlockwise, also manually rotate the

pump shaft in the direction indicated by the pump

label to ensure the pump is free.

Refit the pump plug.

Continue filling the system until at least 1.5 bar

registers on the pressure gauge.

Inspect the system f

or w

ater soundness and remedy

any leaks discovered.

FILLING

OF THE

.H.W. S

YSTEM:

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 them only

when clear water, free of bubbles, is visible.

GAS SUPPLY:

Inspect the entire installation including the gas meter

and test for soundness. The entire installation should

be in accordance with the relevant standards. In GB

this is BS 6891 and in IE this is the current edition of

I.S.813.

The connection to the appliance is a 15mm copper tail

located at the rear of the gas service cock (

FIG. 2.5).

If the gas supply serves other appliances, ensure that

an adequate supply is available both to the boiler and

3. COMMISSIONING

3.1 INITIAL PREPARATION

the other appliances when they are in use at the same

time.

Pipework must be of an adequate size. Pipes of less

than 22mm should not be used.

Open the gas cock (supplied with the connection kit) to

the appliance and check the gas connection on the

appliance for leaks.

When the installation and filling are completed, flush the

system while cold, refill, turn on the Central Heating

system (SECTION 3.2) 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 boiler and system following the

flushing procedure.

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.

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