27
Mexico Super RS485 - RS4125 -
Installation & Servicing
SERVICING
42 CONTROL PANEL REPLACEMENT
Thermostat
bracket
Control
thermostat
Mex 2184
9
8
3
5
7
Clamp
43 OVERHEAT THERMOSTAT REPLACEMENT (if fitted)
"
mex2209
1.
Refer to Frame 37.
2.
Remove the 2 screws and lift off the
lower front panel. Refer to Frame 31.
3.
Pull off the thermostat knob.
4.
Disconnect the inline electrical
connector between the control box
and PCB box.
5.
Unscrew the 2 screws and pull
down the control panel so that the 2
tabs clear the top panel.
6.
Remove the thermostat phial from
the pocket. Refer to Frame 31.
7.
Remove the bottom screw and
remove the cover from the control
box.
8.
Remove the top screw and ease the
control box off the control panel.
9.
Disconnect the mains electrical
supply from the terminal strip and
release from its clamp.
10.
Assemble new control box and
panel and fit to the casing in reverse
order.
11.
Insert control thermostat phial into
pocket and secure with the split pin.
12.
Refit the inline electrical connector between the control box
and the PCB box.
13.
Remove control box cover and remake electrical supply
connections to the terminal strip.
1.
Refer to Frame 37.
2.
Remove the 2 screws and lift off the lower front
panel. Refer to Frame 31.
3.
Slacken the screw at the thermostat pocket and
withdraw the phial from the pocket.
4.
Remove the thermostat retaining nut and
withdraw the thermostat from the control panel.
5.
Transfer the electrical leads from the old
thermostat to the replacement (polarity is not
important).
6.
Fit the new thermostat, ensuring that the
alignment peg on the thermostat sits in the small
hole adjacent to the main fixing hole, and
reassemble in reverse order.
7.
Replace the lower front panel and secure with
the 2 fixing screws.
8.
Check the operation of the boiler.
SER
VICING
200942-1.p65
3/4/2004, 9:25 AM
27