PRESTIGE Front Display/
Control Panel Replacement
Instructions
1. Disconnect the electrical power to the unit at the
service panel.
For your safety turn off electrical power sup-
ply at service panel before proceeding to
avoid possible electrical shock hazard. Using
the service switch provided on the boiler is
not adequate in disconnecting power to unit.
Failure to do so can cause severe personal
injury or death.
2. Remove the front jacket panel.
3. Disconnect the pressure gauge fitting from the
boiler piping mounting adapater.
The boiler piping mounting nut for the pres-
sure gauge fitting contains an internal check
valve. There should be no need in isolating
the boiler or draining the boiler when remov-
ing the pressure gauge fitting.
4. Lift the Display / Control panel up to disengage
the mounting screws from the bottom jacket
panel.
The mounting screws for the Display /
Control panel are accessible from the rear of
the bottom jacket panel and may require to
be loosen for removal of the panel.
5. Disengage the ON-OFF switch from the
Display / Control panel by depressing the upper
and lower retaining clips on the switch.
6. Remove the wire connections from the switch.
Note and label the location of the wires to the
switch prior to removal.
7. Disengage the pressure gauge from the Display
/ Control panel by depressing the retaining clips
on the side of the pressure gauge.
8. Remove the pressure gauge tubing through the
bottom jacket panel. Ensure the tubing does not
become crimped or damaged during removal.
9. Dismount the Display panel from the Display /
Control panel by removing the (4) mounting
screws. Do not discard the mounting screws as
they will be required for re-assembly of the
panel.
10. Pass the switch wiring through the backside of
the new Display / Control panel. Reconnect the
wiring to the switch as shown in Figure 1.
11. Remount the switch onto the new Display /
Control panel. Ensure the switch snaps into
place and is secured.
12. Pass the pressure gauge tubing through the front
side of the new Display / Control panel. Re-
route the tubing through the bottom jacket
panel.
Ensure the pressure gauge tubing does not
become crimped or damaged.
13. Remount the pressure gauge fitting onto the
boiler piping mounting adapter. Ensure fitting
is tight. Pipe sealant is not required.
14. Remount the Display panel on the back side of
the new Display / Control panel using the exist-
ing (4) mounting screws.
15. To mount the new Display / Control panel onto
the unit, ensure the (2) mounting screws are 1 to
2 full turns out from full insertion into the panel.
NOTICE
NOTICE
NOTICE
WARNING
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