Technical information

30
3. COMMISSIONING
3.1. INITIAL PREPARATION
M
TS (GB) Limited support the initiative. In Sections 11
and 12 of this manual you will find the commissioning
checklist (page 78) and the service interval record (Page 79), It
is important the commissioning checklist is completed
i
n the presence of your customer, they are shown how to use it,
and it is signed by them. Please instruct your customer that they
m
ust have this manual with them whenever they contact a
service engineer or us.
P
reliminary 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.
FILLING THE HEATING SYSTEM:
Remove the case and lower the control panel (see section 3.2.
for further information).
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 it only when clear water, free of air, is visible.
Purge the air from the pump by unscrewing the pump plug
and also manually rotate the pump shaft in the direction
indicated by the pump label to ensure the pump is free.
I
M
PORTANT
!!
O
PEN THE MANUAL AIR VENT AND ENSURE THAT THE PRIMARY
E
XCHANGER
IS F
REE OF AIR. (See FI
G
. 3.1A)
Close the pump plug.
Continue filling the system until at least 1 bar registers on the
pressure gauge.
Inspect the system for water soundness and remedy any leaks
discovered.
FILLING
OF
THE
D
.H.W.S
YSTEM:
Close all hot w
ater dra
w-off taps
.
Open the cold water inlet cock supplied with the connection kit.
Open slowly each dr
a
w-off tap and close it only when clear
w
ater
, free of bub
b
les, is visible
GAS SUPPLY:
Inspect the entire installation including the gas meter, test for
soundness and purge, all as descr
ibed in BS 6891:1988.
Open the gas coc
k (supplied with the connection kit) to the
appliance and check the gas connector on the appliance for
leaks.
Water Treatment
The boiler is equipped with an aluminium allo
y main heat
e
xchanger
.
The detailed recommendations for water treatment are given in
BS 7593:1992 (Treatment of water in domestic hot water central
heating systems); the f
ollo
wing notes are giv
en f
or general
guidance:
- If the boiler is installed in an existing system, any unsuitable
additiv
es m
ust be remo
v
ed;
-
Under no circumstances should the boiler be fired bef
ore the
system has been thoroughly flushed;
the flushing procedure
must be in line with BS7593:1992.
Firstly fill the centr
al heating system and boiler with the po
w
er
M
anual Air Vent
FIG. 3.1A