30
• Loosen the bolt holding the wire motor band around the motor shell and pull the motor
from the motor mount. Note the motor position in the mount for re-assembly.
• To re-assemble, insert the motor shaft through the hub in the blower wheel and orient
the motor to original position.
• For proper motor cooling, it is important that the motor be mounted the same as the
original, as far into the blower as practical.
• The dimension from the face of the motor end plate (shaft end) to the first wire on the
motor mount band around the shell should be:
1.25” for (-)BHP-17
1.25” for (-)BHP-21
1.25” for (-)BHP-24
1.5” for (-)BHP-25
• With motor held to above position and motor lead plugs oriented to the original posi-
tion (the wire connectors on the motor must point straight to the supply air end of the
unit and away from the return air [filter] end of the unit). Securely tighten the bolt on
the mount band to the motor shell.
• Turn the motor shaft so that the flat on the shaft is located under blower wheel
setscrew, and the blower wheel is centered in the blower housing with the same dis-
tance on each side between the inlet venturi and the outside of the blower wheel.
• Re-assemble the motor wiring (high and low voltage plugs) into the motor.
IMPORTANT: DO NOT FORCE POWER PLUG INTO THE MOTOR CONNECTOR
BACKWARDS. The A.C. power plug to the motor has locking tabs. It has been
proven that by applying excessive force to the A.C. cable half of the connector
it is possible to force the connector in backwards. It will not seat and “click”
properly but will make connection. If A.C. power is applied with the connector
reversed the motor will be immediately destroyed.
13.0 REPLACEMENT PARTS
Any replacement part used to replace parts originally supplied on equipment must be the
same as or an approved alternate to the original part supplied. The manufacturer will not
be responsible for replacement parts not designed to physically fit or operate within the
design parameters the original parts were selected for.
These parts include but are not limited to: Circuit breakers, heater controls, heater limit
controls, heater elements, motor, motor capacitor, blower relay, control transformer,
blower wheel, filter, indoor coil and sheet metal parts.
When ordering replacement parts, it is necessary to order by part number and include
with the order the complete model number and serial number from the unit data plate.
(See parts list for unit component part numbers).
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