17
Sales/Spares & Replacement Help Line 01604 762881
15
8.14
SPILLAGE MONITORING DEVICE (TTB) REMOVAL:
8.14.1 Ensure that the electrical supply is isolated.
8.14.2 Remove the appliance lower and upper doors.
8.14.3 Remove the Air Circulation Fan as detailed in para 8.8.
8.14.4 Cover the aperture to the Heat Exchanger in the top shelf to prevent objects falling into the Heat Exchanger.
8.14.5 Release and remove the 6 x screws securing the Fan Compartment rear plate, and withdraw the rear plate.
8.14.6 Release and remove the 6 x screws securing the Draught Diverter Access Panel, and withdraw the access panel.
8.14.7 Whilst holding the TTB Access Panel, release the 2 x securing screws and withdraw the TTB Access Panel.
8.14.8 Release the screw securing the TTB Assembly, and withdraw the assembly.
8.14.9 Release the 2 x 4mm screws securing the TTB Bracket to the TTB Assembly and withdraw the bracket.
8.14.10 Disconnect the TTB from its conductors.
8.14.11 Refitting or replacement is in reverse order.
8.15
HEAT EXCHANGER ACCESS:
8.15.1 Ensure that the electrical supply is isolated.
8.15.2 Remove the appliance lower and upper doors.
8.15.3 Remove the Electrical Assembly as detailed in sect 8.9.
8.15.4 Release the 8 x screws securing the Heat Exchanger Access Panel and remove the access panel cap and gasket.
8.15.5 Release the 4 x screws securing each end cap and remove the end caps and gaskets.
8.15.6 Remove the Heat Exchanger baffles.
8.15.7 Reassembly is in reverse order.
NOTE: When reassembling, ensure that the baffle is pushed fully home and the access cap is fully sealed. In the event of
the heat exchanger requiring replacement, contact Johnson and Starley Service Department.
14
NON-MODAIRFLOW models:
8.9.6
Disconnect the following:
a.
230V connections (L/N/E) from the Fan Assembly,
b.
230V mains ‘
L
’, ‘
N
’ and ‘
E
’ from connection block terminals ‘
1
’ and ‘
3
’, and earth stud respectively,
c.
Room thermostat from connection block terminals ‘
17
’ and ‘
18
’,
d.
Limit switch ‘
LOAD
’ and ‘
COMMON
’ connections,
e.
Fan Control ‘
LOAD
’, ‘
COMMON
’ and ‘
EARTH
’ connections,
Both model types:
8.9.7
Disconnect the 2 x TTB connections from the terminal block on the fan compartment diaphragm..
8.9.8
Disconnect the Multifunctional Control connections.
8.9.9
Release 4 x 4mm screws securing the Electrical Assembly to the heater cabinet and remove the Electrical
Assembly, releasing wiring from cable clamps and grommets as required..
8.9.10 Refitting or replacement is in reverse order.
8.10
ELECTRONIC MODULE REMOVAL (MODAIRFLOW models only)
8.10.1 Remove the Electrical Assembly as detailed in sect 8.9.
8.10.2 Disconnect the Electronic Module from the Electrical Assembly.
8.10.3 Release the 3 x screws securing the Electronic Module to the Electrical Assembly and remove the module.
8.10.4 Refitting or replacement is in reverse order.
8.11
TRANSFORMER REMOVAL (MODAIRFLOW models only):
8.11.1 Remove the Electrical Assembly as detailed in sect 8.9.
8.11.2 Disconnect the Transformer from the Electrical Assembly terminal block, and fuse from Earth stud,
8.11.3 Release the 2 x screws and nuts securing the Transformer to the Electrical Assembly, and remove the
Transformer.
8.11.4 Refitting or replacement is in reverse order.
8.12
TIME CONTROL REMOVAL:
8.12.1 Ensure that the electrical supply is isolated.
8.12.2 Release the securing screw situated on the lower face of the Time Control and remove the Time Control by
partially withdrawing the bottom and then lifting the Time Control upwards.
8.12.3 Disconnect the Time Control electrical connections from the integral terminal strip.
8.12.4 Refitting or replacement is in reverse order.
8.12.5 Set the Time Control to required ON and OFF times.
8.12.6 Set the Time Control to correct time.
8.13
FAN CONTROL, LIMIT SWITCH AND AIRFLOW SENSOR REMOVAL:
NOTE: Airflow sensor applies to MODAIRFLOW models only, whilst Fan Delay Control applies solely to non-
MODAIRFLOW models.
8.13.1 Ensure that the electrical supply is isolated.
8.13.2 Remove the appliance lower and upper doors.
8.13.3 Release the 2 x 4mm screws securing the Limit Switch cover and withdraw the cover.
8.13.4 Disconnect the required control/switch.
8.13.5 Release the 2 x securing screws and remove required control/switch.
8.13.6 Refitting or replacement is in reverse order.
Summary of Contents for 42-451-15
Page 25: ...25 Sales Spares Replacement Help Line 01604 762881 Fig 5b Non MODAIRFLOW CIRCUIT DIAGRAM...
Page 26: ...www johnsonandstarley co uk 26 12 FUNCTIONAL DIAGRAMS Fig 6a Non MODAIRFLOW FUNCTIONAL DIAGRAM...
Page 27: ...27 Sales Spares Replacement Help Line 01604 762881 Fig 6b Non MODAIRFLOW FUNCTIONAL DIAGRAM...
Page 28: ...www johnsonandstarley co uk 28 13 DIMENSIONS Fig 7 HI SPEC J90 DIMENSIONS...
Page 29: ...29 Sales Spares Replacement Help Line 01604 762881 14 NOTES...
