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commissioning
28
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 Thermo UK LTD 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 e cient.
Filling the Heating System:
Remove the front casing panel and lower the control panel as
described on page 16).
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.
I
MPORTANT!
M
ANUALLY VENT THE HEAT EXCHANGER AT THE MANUAL AIR VENT. FAILURE TO VENT
ADEQUATELY MAY DAMAGE THE HEAT EXCHANGER (PAGE 7, LEGEND 2).
Filling of the DHW System (Combi only):
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 22 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
7593:1992 (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 BS7593:1992.
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,
N
OTE: FAILURE TO CARRY OUT THE FLUSHING PROCEDURE WILL RESULT IN THE WARRANTY
BECOMING VOID.