Overview of Primary Product

page 10
REMOVAL
Remove the motor enclosure cover by loosening the four 1.
screws. (See Figure 14)
Disconnect the conduit connector from the motor conduit 2.
box by loosening the screw on the side of the connector. Pull
the wires and wire nuts out of conduit box hole and remove
the wire nuts. NOTE: Wiring disconnection may not be
necessary for inspection and/or cleaning only.
(See Figure 15)
Remove the three or four nuts securing the motor assembly, 3.
and pull the motor assembly straight off of the unit.
(See Figure 16)
Clean off any build-up inside the blower wheel housing 4.
and the blower wheel. CAUTION: Avoid applying excess
pressure on the blower wheel when cleaning off any build-
up of material. This will cause an imbalance of the blower
wheel, which will result in excessive vibration and premature
motor failure.
PART NUMBERS
MODEL REPAIR MOTOR ASSEMBLY BLOWER WHEEL
CV-4 46234800 46310400
CV-5 46234900 46213800
CV Repair
Motor Assembly
Figure 14
Figure 15
MAINTENANCE
Motor:1. Inspect the motor once a year - motor should rotate freely. To prolong the life of the motor, it must be
lubricated with six drops of SWG Superlube, Part # 46226200, annually.
Wheel:2. Inspect the power venter wheel annually to clear any soot, ash or coating, which inhibits either
rotation or air flow. Remove all foreign materials before operating.
Vent System:3. Inspect all vent connections annually for looseness, for evidence of corrosion and for flue gas
leakage. Replace, seal or tighten pipe connections if necessary. Check the power venter choke plate to ensure
it is secured in place. Check the barometric draft control, if installed, to ensure the gate swings freely.
System Safety Devices:4. With the heating system operating, disconnect the pressure sensing tube from the
pressure switch on the CK Kit. This will stop the burner operation. Re-connecting the tube will relight the
burner. For 30 millivolt operating systems, disconnect one lead of the spill switch circuit from the thermocouple
junction block. This will shut off the pilot and the burner. Re-connection will allow relighting the pilot.
REPLACEMENT PARTS
Should the motor or blower wheel need replacing, the following replacement items are available. The Repair
Motor Assembly contains the Motor and Blower Wheel factory assembled to a mounting bracket.
REMOVAL AND INSTALLATION OF THE CV SERIES POWER VENTER MOTOR ASSEMBLY