P/N 0467434_P
6-7
Low Temperature
Excel
HUSSMANN CORPORATION • BRIDGETON, MO 63044-2483 U.S.A.
REPLACING RETURN AIR HEATER
To replace the heater:
1. Turn OFF the power to the merchandiser.
2. Remove return grilles, package guard and
interior panel from the compartment being
serviced.
3. Remove screw and wireway cover.
4. Unplug existing return air heater. The
return air heater plug is routed on RH side
from front of merchandiser (end opposite
the main serial plate).
5. Remove screws and retainer.
6. Remove the foil tape and heater from the
retainer.
7. Clean thoroughly. Remove all adhesive
and residue. Wipe surface with alcohol
to ensure new heater tape will adhere
properly.
8. Install new heater and tape in retainer as
shown.
9. Reinstall retainer, routing plug to jumper
harness; plug in.
10. Reinstall wireway cover, interior panel,
package guard, return air grilles, display
pans and wire racks.
11. Turn on power to merchandiser and check
for proper operation.
— LOCK OUT / TAG OUT —
To avoid serious injury or death from electrical 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.
