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ZB80M
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ZB110M 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
It is normal for this ventilation fan to take approximately 5 seconds to
start running after it is turned on.
Modes
(For reference, wiring diagrams are on pages 5 and 10.)
Continuous ventilation:
1. Turn master wall switch on.
2. Fan operates at user-adjustable airflow rate.
Motion sensing:
1. If master wall switch is not already on, turn it on.
2. Turn sensor/control wall switch on. Some installations may not have a
separate sensor/control wall switch; where it is combined with master
wall switch.
3. Fan operates at certified airflow rate and sensor detects motion.
4. When no more motion is detected, fan enters time delay mode. (See
below.)
Manual-on (optional manual-on wall switch must be installed):
1. Turn master and manual-on wall switches on (sensor/control wall
switch can be on or off).
2. Fan operates at certified airflow rate.
3. When manual-on wall switch is turned off, fan enters timed-off mode.
(See below.)
Time Delay:
Fan continues to run at cerified airflow rate until user-adjustable TIME
delay has passed, then fan reverts to user-adjustable airflow rate.
To Set the User-Adjustable Airflow Rate*
Using a small, flat-blade screwdriver, carefully rotate the CFM
adjustment until the arrow points to the desired airflow rate.
To Set the User-Adjustable Time Delay*
Using a small, flat-blade screwdriver, carefully rotate TIME adjustment
until the arrow points to the desired minutes of time delay.
* The user-adjustable controls are located in one corner of the Fan
Housing, behind the Grille.
To Turn Fan OFF
Turn the master switch OFF.
ZB80M User-adjustable controls
ZB110M User-adjustable controls
CAUTION
IN ORDER TO PREVENT MOTOR/
CONTROL DAMAGE:
DO NOT remove motor plug to stop spinning
motor.
Power must be disconnected (see
WARNING at top left of this page) before
motor plug is removed or inserted into
control assembly.
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.
Do not use cleaning sprays, solvents or water
on, or near, the sensor.
Motor is permanently lubricated and never
needs oiling. If motor is making excessive or
unusual noises, replace Control Assembly
and Motor.
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