
30
221954D
Diagram 12.5
SELF ADHESIVE
ALUMINIUM FOIL
GASKET
MICA WINDOW
PEEL OFF
BACKING
PAPER
OPENING
(INSIDE FACE
OF THE BOILER
FRONT COVER)
Diagram 12.4
SECURING SCREW
FRONT
INSULATION
SIDE INSULATION
4303
7907
12.13 Air Pressure Switch - diagram 12.6
Release the control box as Section 7.1
Remove the pressure tubes and the electrical connections from
the PCB, release the screws and remove the switch.
When fitting the replacement make sure that the plastic tubes
and electrical connections are made as shown in diagram 11.5
and 12.6.
Diagram 12.3
SOLENOIDS
ELECTRICAL
PLUG
SECURING
SCREW
EXTENDED
SCREW
(8 off)
RESTRICTOR
(120FF Only)
PILOT PIPE
TUBING NUT
4302
12 Replacement of Parts
Diagram 12.6
RED
CLEAR
AIR PRESSURE
SWITCH TUBES
SECURING
SCREWS
AIR
PRESSURE
SWITCH
ELECTRICAL
CONNECTIONS
CONTROL
BOX
9077