Ariston CLAS HE R, Installation And Servicing Instructions

Page: 29 / 64

/ 29
COMMISSIONING
Initial preparation
Ariston Thermo UK Ltd Ltd support the benchmark initiative.
On pages 59 and 60 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:
Close all air release valves on the central heating system;
Open system
Fill the boiler system via the feed and expansion tank.
Sealed 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;
Inspect the system for water tightness and remedy any leaks discovered.
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 15mm (22mm on 38Kw)
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. The final pipe size must not
be smaller than the appliance inlet size.
Pipe work must be of an adequate size. Pipes of less than 22mm should not
be used, final connection being 15mm.
Open the gas isolating valve (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 7593:2006 (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
: F
AiluRe to cARRy out the FlushiNg pRoceduRe will Result iN the wARRANty
becomiNg void
.