Supplied By www.heating spares.co Tel. 0161 620 6677
6
commissioning
Initial preparation
MTS (GB) Limited support the benchmark initiative. On pages
pages 65 and 66 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:
Switch the electrical supply to the boiler on in order to view the
system pressure on the display;
Remove the front casing panel and lower the control panel as
described on page 13).
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
. f
ailure
to
VeNt
adequately
may
damage
the
heat
exchaNger
(
page
7,
legeNd
2).
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 15mm 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 connection being 15mm.
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,
n
ote
: f
AiluRe
to
cARRy
out
the
flushing
pRoceduRe
will
Result
in
the
wARRAnty
becoMing
void
.
