Replacing Fan Motors And Blades - Hussmann INSIGHT REACH-IN Installation & Operation Manual

REPLACING FAN MOTORS AND BLADES

See cross section for location of evaporator fans. Should it ever be
necessary to service or replace the fan motors or blades be certain that
the fan blades are re-installed correctly. Fan assemblies may vary, but
replacement procedures are similar.
Fan Access:
1. Disconnect power to the case.
2. Remove bottom display pans.
3. Remove plug clip and disconnect fan from wiring harness.
4. Remove fan blade.
5. Remove screws holding fan motor/bracket assembly to plenum
and remove assembly.
6. Replace fan motor/bracket assembly and reinstall screws.
7. Reinstall fan blade.
8. Reconnect fan to wiring harness, and replace plug clip.
9. Turn on power.
10. Verify that motor is working and blade is turning in the correct
direction.
11. Close large 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,
however defrost water should not be blocked by fan plenum. Do
NOT seal fan plenum so that water can not drain.
12. Replace display pans. Bring merchandiser to operating
temperature before restocking.
HUSSMANN CORPORATION • U.S. & CANADA 1-800-922-1919 • BRIDGETON, MO 63044-2483 • MEXICO 1-800-890-2900 • WWW.HUSSMANN.COM • PN 3181178_A
Screws Screws
Bracket Bracket
Plenum
Plenum
Hussmann recommends against frame heater
cycling with doors to prevent door seals from
freezing to the frames and tearing.
6-3
Fan Assembly
Fan Assembly
S er vi c e # M O . X X X X X X X
Speed-Nut
Speed-Nut
XX XXXXX
Fan Blade
Fan Blade
Airflow
Airflow
Direction
Direction
Motor
Motor