HAMWORTHY HEATING LTD
WESSEX-HE 200 BOILER
500001008/K
20
NOTE:
For adjustment of the temperature limiter
operating range, refer to section 8.10.1 and follow this
procedure. Adjustment can be made with screwdriver
when limiter is removed.
14.8 Sequence Controller Renewal
- HHL Part No.
747246236
The sequence controller can be removed complete.
Firstly remove the fascia as described in 13.2.1.
Unscrew the cheese head screw retaining the
controller to its terminal wiring base. Pull the
controller firmly from its base, there will be some
resistance due to the "push-in" terminal connections.
Locate new controller correctly to base and push
firmly home, tighten retaining screw.
14.9 Neon Indicators and On/Off Switch Renewal
Item HHL
Part
No.
Green neon lamp
747436456
Red neon lamp
747436449
On/off rocker switch
339006648
Pull off the electrical leads to the appropriate item
spade connectors. Release switch or lamp from
mounting fascia by pressing in the plastic retaining
lugs at the top and bottom. Pull components out
frontwards. Push in new component until lugs lock in
position and reconnect leads. Consult wiring diagram
on controls cover or Figure No. 5 if in doubt regarding
reconnection.
14.10 Ignition Spark Generator
- HHL Part No.
747217120
The ignition spark generator is located behind the
sequence controller. Firstly remove the fascia as
described in 13.2.1. Release the screw retaining the
sequence controller and pull the top clear of the base-
plate to expose the terminal rails. Pull off HT cap
from ignition electrode and unscrew the clip inside the
cap and pull out the lead (use 'Pozidrive' No. 2 point
in the clip). Disconnect wiring from base-plate at
terminals A, 8 and E. Release two screws securing
base plate and transformer to controls bracket,
remove transformer.
Re-assemble components in reverse order making
sure that the transformer is earthed at the earthing
terminal.
