22
221469B
10 Boiler Fixing
10.1 Mounting the Boiler
After installing the boiler mounting frame, domestic and heating
water systems, making the electrical connections and preparing
the flue components, continue as below:
Lift the boiler into position, hooking it onto the boiler mounting
frame at the top, then loosely fit the two boiler securing screws
at the top, see diagram 6.3.
10.2 Gas and Water Connections
Locate the boiler water pipes into the isolation valves and the
gas service cock union halves. Fully push the boiler back to the
mounting frame, locating the studs into the clips.
Make the compression joint on the isolating valves and join the
gas service cock union. Secure all of the valves and gas service
cock with the clips.
10.3 Boiler Securing
Secure the boiler by tightening the two boiler securing screws
at the top.
10.4 Discharge Pipe
Remove the two control housing screws, see diagram 10.1.
Remove the control housing and support it on a surface or by
screwing it to the front edge of the base, using one of the
securing screws, see diagram 10.1.
Fit the short discharge pipe to the safety valve using the nut and
olive supplied loose, see diagram 10.2.
Extend the discharge pipe, using only a compression type fitting
to join the discharge extension, refer also to Section 8.3 “Safety
Valve Discharge”.
10.5 Clock/timer (if applicable)
Fit the clock/timer kit following the appropriate sections of the
instructions supplied with it.
10.6 Electrical Connector
Connect the two halves of the electrical connector together.
Clip the connector into position on the boiler mounting frame.
Secure the cables with cable clamp immediately behind the
connector.
Carryout preliminary electrical system checks as below:
1. Test insulation resistance to earth of mains cables.
2. Test earth continuity and short circuit of all cables
3. Test the polarity of the mains.
FASCIA
FASCIA
SECURING
SCREW (3)
CONTROL HOUSING
SECURING SCREW (2)
SECURING
SCREW
(To support the
control housing if
necessary)
CONTROL HOUSING
COVER SECURING
SCREW
CONTROL
HOUSING
COVER
3894 S
2292
DO NOT
ADJUST
HOT WATER
GAS
PRESSURE
ADJUSTER
CONTROL
BOARD
CENTRAL
HEATING
GAS PRESSURE
ADJUSTER
Diagram 10.1
2795
UNION
CONNECTION
Diagram 10.2
'NOTCH'
DISCHARGE PIPE
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