Supplied By www.heating spares.co Tel. 0161 620 6677
9
221098C
56 BBU/2
FIRE
FIXING
WALL FACE
45 BBU/2
FIRE
FIXING
WALL FACE
N
BACK BOILER
AIR DUCT
56/2
BBU
45/2
BBU
P
*'D'
*'D'
*'D'
FIRE FRONT
SENSING
TUBE
*'D' = Distance from fire fixing
wall face to datums on
back boiler air duct.
This represents the
length of pipe that requires
cutting off.
3 F i r e F r o n t P r e p a r a t i o n
Diagram 3.4
BACK
BOILER
ONLY 'ON'
TURNED
FULLY
CLOCKWISE
BACK
BOILER &
FIRE 'ON'
TURNED TO
MID POSITION
90˚
180˚
'OFF'
TURN FULLY
ANTI-
CLOCKWISE
Diagram 3.6
BACK
BOILER
AIR
DUCT
*'C' = Distance from fire fixing wall face to datums
on back boiler air duct. This represents the
length of pipe that requires cutting off.
'P'
*'C'
*'C'
GAS FIRE
SUPPLY TUBE
FIRE FIXING
WALL FACE
Diagram 3.5
5078
5245
GAS SERVICE
COCK UNION
Firefront sensing tube
Shorten the plain end of the fire front sensing tube by
distance “D”, no shortening of the tube is required when
45/2 back boiler is fitted and point “P” is level with the
fire fixing wall face. Similarly when a 56/2 back boiler
is fitted no shortening is required when point “N” is level
with the fire fixing wall face. In both cases “D” is zero
the maximum distance of “D” for both the 45/2 and 56/2
back boiler will be 25mm, see diagram 3.6.
Deburr the tube end inside and out.
3.4 Battery
Remove the fire front from the base tray.
Take the battery from the fittings pack and fit as shown
in diagram 4.1, make sure that the terminals are correctly
fitted.