Johnson & Starley 42-416-18, С водяным циркулятором Intejan

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TIME CONTROL REMOVAL
17.8.3 Disconnect spade terminal connectors “
C1
”, “
C2
”, “
C3
” and “
C5
” from the time control.
17.8.4 Release the 3 x fixing screws securing the clock mounting plate to the electrical door and withdraw
the total assembly from the door.
17.8.5 Remove the 3 x M3 bolts that secure the time clock mechanism and remove from the mounting
plate.
17.8.6 Refitting or replacement is in reverse order.
LED INDICATOR (DAUGHTER BOARD)
17.8.7 Disconnect the daughter board by unplugging the fly lead from the control module board.
17.8.8 Release the 3 x fixing screws securing the clock mounting plate to the electrical door and withdraw
the total assembly from the door.
17.8.9 Remove the 2 x M3 nuts holding the board onto the bolts and remove.
17.8.10 Replacement is in reverse order, ensuring to refit the spacers.
SWITCH/S REMOVAL
17.8.11 Disconnect the spade terminal connectors “
S1
”, “
S2
” and “
S3
” or “
S4
”, “
S5
” and “
S6
” from the
switch terminals.
17.8.12 Release the switch/s by pressing out from the back of the electrical door assembly.
17.8.13 Fit new switch/s and lock into position by pressing home until the locking tabs locate on the top and
bottom of the switch.
17.8.14 Re-connect the spade connectors.
17.8.15 Re-fitting of the electrical door assembly is in reverse order.
17.8.16 Close the electrical door assembly and secure using the 3 x fixing screws.
17.8.17 Set the time control to correct time.
17.8.18 Set the time control to the required “ON” and “OFF” periods.
17.9 FAN DELAY CONTROL/LIMIT SWITCH REMOVAL
17.9.1 Ensure that the electrical supply is isolated.
17.9.2 Remove the appliance front door.
17.9.3 Remove the 2 x fixing screws holding the FDC/limit switch assembly in place and withdraw from
the appliance.
17.9.4 Disconnect the wires from the terminal block and release the clamping bush, in order to remove
the wiring harness.
17.9.5 Refitting or replacement is in reverse order.
17.10 WATER CIRCULATOR THERMOSTAT REMOVAL
17.10.1 Remove the appliance front door.
17.10.2 Disconnect the two spade terminals from the back of the thermostat.
17.10.3 Carefully loosen the control knob from the shaft of the thermostat using a large flat head screwdriver
and remove.
17.10.4 Loosen and remove the 2 x screws securing the thermostat and remove the thermostat from its
mounting bracket.
17.10.5 Refitting or replacement is in reverse order.
17.11 HEAT EXCHANGER ACCESS
17.11.1 Ensure that the gas and electrical supplies are isolated.
17.11.2 Remove the appliance front door.
17.11.3 Remove the fixing screws holding the sealing panel in place and carefully remove the panel.
17.11.4 Remove the burner assembly as detailed at 17.3
17.11.5 Remove the multifunctional control for the water circulator (IF FITTED)
17.11.6 Release the fixing screws securing the combustion chamber heat shield and withdraw the heat
shield.
17.11.7 Release the fixing screws securing the top access cover plates and withdraw the cover plate and gasket.
17.11.8 Release the fixing screws securing the heat exchanger top sealing plate and withdraw the sealing
plate and gasket.
17.11.9 Reassembly is in reverse order.
NOTE: When reassembling ensure that gaskets are soundly sealed and replaced where necessary
(See cautionary note at paragraph 10) Prior to use, you MUST fully commission the heater in
accordance with these instructions.