5.
Remove the two screws holding the impeller housing to the top plate. These screws also hold
the motor in place and removing these screws will allow the motor to be removed from
beneath the top plate.
6.
Remove the fan from the motor shaft and place it on the new motor. Make certain the fan is
located in the same place on the motor shaft as it was on the shaft of the old motor.
7.
Position the new motor in place, run the motor wires through the hole in the top plate, then
fasten the motor and impeller housing to the top plate with two screws. Press the impeller
onto the motor shaft and make certain the top of the impeller is just below the top of the
impeller housing. Be certain that the impeller turns freely and does not rub on the bottom of
the housing.
8.
. Install the metal channel and secure using the eight screws. Be sure the metal strip retaining
the insulation material is in place before the screws are secured. (Note: Insulation material is
not used on Model MT-1 25).
9.
Connect the ribbon wire from the underside of the top cover to the PCB taking care to engage
all slots in the plug with corresponding pins in the socket. (Not applicable for Model MT-125).
10.
Install the top cover by spreading the louvers at the rear of the unit to engage the
boss at the rear of the cover and secure with screw. Install the two screws in the front of the
unit to secure the top cover to the top plate.
1 1. Complete the installation by installing the funnel and the collection tray and attaching the
electrical connector and the gas regulator.
7. BURNER ASSEMBLY - REPLACEMENT
Applicable for Units Manufactured prior to 2011
1.
Unplug the PowerTrap and disconnect the regulator from the propane tank.
2.
Remove the top cover. (See appendix A for instructions on removing the top cover.) Unplug
the ribbon wire from the edge of the PCB and remove the top cover completely from the unit.
3.
Disconnect remaining wires from the outside edge of the PCB. Twist off the red and yellow
thermocouple wires from the posts located at the front edge of the PCB and disconnect the
two black wires from the back edge of the board. Remove the three nuts at the top of the
board.
4.
Remove the eight screws that secure the metal channel running along the center of the top
metal plate and remove the channel (and metal strip holding the insulation material along the
side). Remove the screw in the center of the top plate which secures the top plate to the
vertical rod extending through the center of the housing. Bend the tabs (two) at the top of the
burner assembly so that they are in line with the slots in the top plate.
5.
Disconnect the copper tube from the valve located at the bottom of the burner assembly using
a 3/8" wrench.
6.
Lift the top plate off the trap housing. Remove the burner assembly by moving it to the rear
until tabs line up with the slots in the top plate and then pull it down while passing the burner
wires through the hole in the top plate.
