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3.
COMMISSIONING
3.1
I
P
NITIAL
REPARATION
MTS (GB) Limited support the
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 by them. Please instruct your customer
that they must have their
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.
F
H
S
ILLING THE
EATING
YSTEM
Lower the control panel and remove the case panels
(see S
2.12 for further information).
ECTION
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 for water soundness and remedy
any leaks discovered.
F
D.H.W. S
ILLING OF THE
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.
G
S
:
AS
UPPLY
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 (F
If the gas supply serves other appliances, ensure that
an adequate supply is available both to the boiler and
22
initiative. Within
logbook with them
:
:
. 2.5).
IG
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
3.2) and run it until the temperature has
system (S
ECTION
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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