PRESTIGE Excellence
HX Field Replacement
Kit
10
If during the install of the internal vent pipe or
vent outlet adapter the flue gasket becomes dis-
lodged, it is extremely important that the install
is halted and the gasket is reseated. Failure to
comply could result in leakage of flue products
into the surrounding area resulting in death or
personal injury.
Installation of Electrical Connections (MCBA)
1. Connect the orange wire leads to the Low Water
Cut-Off (LWCO) pressure switch.
2. Connect the Harness Adapter to the blue return
temperature sensor wires of the boiler wiring
harness using the included Wire Taps.
- Place the unstripped wire harness wire into
the run channel of the Wire Tap and close
the side cover (Fig. 13).
- Insert the Harness Adapter unstripped wire
into the Wire Tap and use pliers to squeeze
the U-Connection into the Wire Tap.
- Close the hinged cover and make sure it
latches.
- Plug the Harness Adapter into the return
temperature sensor
3. Connect the Harness Adapter to the red supply
temperature sensor wires of the boiler wiring
harness using the included Wire Taps. Follow
the Harness Adapter instructions above then
plug the Harness Adapter into the supply tem-
perature sensor.
4. Reconnect the yellow flue temperature wires to
the flue temperature sensor if the sensor was not
replaced. If the flue temperature sensor was
replaced, connect the Harness Adapter to the
yellow flue temperature sensor wires of the
boiler wiring harness using the included Wire
Taps. Follow the Harness Adapter instructions
above then plug the Harness Adapter into the
flue temperature sensor.
5. Connect the black rectifier plug to the gas valve
and secure with provided screw.
6. Connect the electrical connection(s) for the
blower to the blower housing.
7. Connect the green ground wire to the igniter
ground terminal.
8. Pass the orange low voltage and high voltage
wiring terminal strips through the lower cutouts
of the control mounting panel. Close the control
mounting panel and secure with the retaining
screw. Connect the orange low and high voltage
wiring terminal strips to the upper portion.
WARNING
Run Channel
Wire Harness
Adapter Wire
Wire Harness
Sensor Wire
U-Connection
Fig. 13: Harness Adapter Installation
