Commissioning; Initial Preparation; Electricity Supply; Filling The Heating System - Ariston E-COMBI 24 Installation And Servicing Instructions

commissioning

Initial preparation

At the time of commissioning, complete all
relevant sections of the Benchmark Checklist
located on the inside back pages of this
document.
ARISTON (GB) Limited support the Benchmark
initiative. On pages pages 53 and 54 of this
manual the Benchmark Commissioning Checklist
and Service interval Record can be found. It is
important that this is completed in the presence
of your customer, they are shown how to use it,
and it is signed by them. Please instruct your
customer that they must have this manual 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.

Electricity supply

- Check that the voltage and frequency of the
electricity supply correspond to the data shown
on the boiler data plate;
- Make sure that the earthing connection is
efficient.

Filling the Heating System:

Remove the front casing panel and lower the
control panel as described on page 15).
Open the central heating flow and return cocks
supplied with the connection kit;
Lift the cap on the automatic air release valve
and leave open permanently;
Close all air release valves on the central heating
system;
Gradually open the valves at the filling point
(filling loop) 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 anti-clockwise, 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 for water tightness and
remedy any leaks discovered.
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aNually VeNt the heat exchaNger at the maNual air
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Filling of the DHW System:

Close all hot water draw off taps;
Open the cold water inlet cock supplied with the
connection kit;
Slowly open 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 tightness. 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 on the the appliance is a 15
mm nut and olive located at the rear of the gas
service cock.
If the gas supply serves other appliances, ensure
that an adequate supply is available both to the
boiler and the other appliances when they are in
use at the same time.
Pipe work must be of an adequate size. Pipes of
less than  mm should not be used, final being
15 mm.
Open the gas cock (supplied with the connection
kit) to the appliance and check the gas
connection on the appliance for leaks.

Water Treatment:

The boiler is equipped with a stainless steel heat
exchanger.
The detailed recommendations for water
treatment are given in BS 7593:199 (Treatment
of water in domestic hot water central heating
systems); the following notes are given for
general guidance;
If the boiler is installed on an existing system, any
unsuitable additives must be removed;
Under no circumstances should the boiler be
fired before the system has been thoroughly
flushed; the flushing procedure must be in line
with BS7593:199.
Firstly fill the central heating system with
the power off, and flush through cold, fill the
central heating system again, adding a flushing
detergent, run the boiler on central heating
until it reaches its operating temperature and
flush the system, refill the system with a suitable
corrosion inhibitor,
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ote ailuRe to caRRy out
Result iN the waRRaNty becomiNg
the FlushiNg pRoceduRe will
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