Service; Replacing Fan Motors And Blades - Hussmann Q3SSM10R Installation & Operation Manual

S E R V I C E
5-1
REPLACING FAN MOTORS AND
BLADES
Should it ever be necessary to service or
replace the fan motors or blades be certain that
the fan blades are reinstalled correctly. The
blades must be installed with raised
embossing (part number on plastic
blades) positioned as indicated on The
parts list.
For access to these fans:
1. Remove product and place in a refrigerated
area. Turn off power to the merchandiser.
2. Remove bottom display pans.
3. Disconnect fan from wiring harness.
4. Remove fan blade.
5. Lift fan plenum and remove screws holding
bottom of motor to fan basket.
6. Replace fan motor and blade.
7. Lower fan plenum.
8. Reconnect fan to wiring harness.
9. Turn on power.
10. Verify that motor is working and blade is
turning in the correct direction.
HUSSMANN CORPORATION • BRIDGETON, MO 63044-2483 U.S.A.
Note: Plenum length
and number of fans will
vary withmodel.
— LOCK OUT / T AG OUT—
To avoid serious injury or death from electri-
cal shock, always disconnect the electrical
power at the main disconnect when servicing
or replacing any electrical component. This
includes, but is not limited to, such items as
doors, lights, fans, heaters, and thermostats.
11. Close air gaps under fan plenum. Warmer
air moving into refrigerated air reduces
effective cooling. If the plenum does not
rest against the case bottom without gaps,
apply foam tape to the bottom of the fan
plenum to reduce improper air movement.
Use silicone sealant to close other gaps.
12. Reinstall display pans. Bring merchandiser
to operating temperature before restocking.
Q3 Remote Merchandisers
P/N 3068445 _D