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I.
HEATER MAINTENANCE CHECKLIST
Heater Model
Serial Number
Comments
I.1 Periodic
(before and as required during heating season)
•
Clean - Use compressed air only.
Heating Elements
…
Louvers
…
Motor
…
Inlet Grille
…
Fan
…
I.2 A nnual
•
Electrical Check
All terminal connections and conductors.
…
Tighten loose connections. Conductors with
damaged insulation must be replaced.
Electrical resistance on all load side legs.
…
Reading should be balanced (± 5%).
WARNING.
Disconnect heater from power supply at
integral disconnect or fuse box before opening enclosures
or servicing heater.
WARNING
Lock the switch in the "OFF" (open) position and tag the
switch to prevent unexpected power application.
This heater should only be serviced by qualified personnel
with electrical heating equipment experience.
Install and use the heater in accordance with local codes
and this manual.
WARNING.
Use this heater only as described in this
manual. Any other use not recommended by the
manufacturer may cause fire, electric shock, or injury
WARNING
to persons.
(before heating season)
Date of Maintenance
Maintenance Done By
•
Mounting & Motor Check
All mounting hardware condition and
…
tightness
Motor for smooth, quiet operation
…
•
Mechanical Check
Check heating elements for corrosion and
…
debris buildup. Clean as required.
Check motor shaft bearing play. Replace
…
motor if play is excessive, or if motor does
not run quietly and smoothly. Bearings are
permanently lubricated.
Check fan. Replace immediately if cracked,
…
damaged, or out of balance.
Check tightness of all hardware. All fasteners
…
must be tight.
Turn heater on for a minimum of five minutes.
…
Check for warm air exiting heater through
discharge louvers.
15
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