Instructions / Assembly

ZN80M
n
ZN110M 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 sepa-
rate 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 time-delay
mode. (See below.)
Time Delay:
Fancontinuestorunatcertified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.
ZN80M User-adjustable controls
ZN110M 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.