34
INITIAL LIGHTING
THE DISPLAY
Note:
Legend
A.
B.
C.
D.
E.
F.
G.
H.
J.
K.
L.
M.
N.
1.
Note.
It is important the burner is not operated before the system is fully vented of
air. If it is necessary to operate the appliance pump to assist venting of the
air this must be done with the gas service cock turned off.
2.
3.
4.
5.
6.
7.
8.
Note. The boiler incorporates a fan overrun cycle which
MUST NOT be prematurely interrupted by isolation of the
mains electricity supply.
CENTRAL HEATING
9.
10.
.
DOMESTIC HOT WATER
11.
12.
IMPORTANT
The gas input to the burner is regulated by the gas valve
according to the air ow produced by the fan. It is NOT user-
adjustable. Any interference to sealed settings on the gas valve
will adversely affect operation and render our warranty void.
13.
MECHANICAL TIMER
INSTALLATION
205367-3.indd 31 13/12/2010 16:21:31
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