Installation Guide

XB50L1
n
XB80L1
n
XB110L1 Installation Guide
Page 12
WARNING Before servicing or cleaning unit,
switch power off at service panel and lock the service
disconnecting means to prevent power from being
switched on accidentally. When the service disconnecting
means cannot be locked, securely fasten a prominent
warning device, such as a tag, to the service panel.
Operation
To Operate Fan
Use an ON/OFF switch to operate this ventilator.
It is normal for this ventilation fan to take approximately 5
seconds to start running after it is turned on.
To Operate Lights
The fan and light can be operated independently, using
separate switches. The light may be operated with a
dimmer switch. See wiring diagrams.
Cleaning and Maintenance
To Clean
For quiet and efficient operation, long life and attractive
appearance, remove Grille and vacuum interior of unit
with a dusting brush attachment.
The Motor is permanently lubricated and never needs
oiling. If the motor bearings are making excessive or
unusual noises, replace the Control Assembly and Motor.
CAUTION
IN ORDER TO PREVENT MOTOR/CONTROL DAMAGE:
DO NOT remove motor plug to stop spinning motor.
Power must be disconnected (see WARNING above) before
motor plug is removed or inserted into control assembly.
Troubleshooting
Symptom: The fan does not run.
• Check for an open fuse or circuit breaker in the building’s
service panel.
• Check that the two (2) plug-in connections for the Motor
and the Control are seated firmly in place.
• Check that the Blower Wheel spins freely.
Symptom: The fan runs erratically.
• Check that the Blower Wheel is firmly attached to the
Motor shaft and both spin freely.
Symptom: The fan seems noisy.
• Check that the back draft damper in the fan’s Duct
Connector pivots freely. Screws used to attach the duct to
the Duct Connector may be preventing the damper from
opening.
• Check that the back draft damper in the wall or roof cap
pivots freely. These dampers are sometimes mistakenly
painted shut or obstructed by bird and insect debris..