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WARNING: Turn off all power to service heater. Do
not attempt to service heater while unit is operat-
ing as there is hazard of electric shock, injury from
operating fan, and burns from hot heating ele-
ments.
1. Fan motors in these heaters are provided with sealed ball bear-
ings, factory lubricated, requiring no further lubrication under
normal service conditions.
Model
UB-2502A
UB-3002A
Note: Number in parentheses ( ) indicates the quantity of that part required.
MAINTENANCE
RENEWAL PARTS IDENTIFICATION
HEATING ELEMENTS
1
Voltage
Phase
240
3
480
1 or 3
550
3
575
3
600
3
240
3
480
1 or 3
550
3
575
3
600
3
7
2. Vacuum heater before activating heater for next heating season
to remove accumulated dust or lint which otherwise may
smoke or incinerate on initial heat up.
3. Periodically inspect all electrical connections and terminals to
avoid electrical wiring difficulties. Inspect all wiring for frayed
or worn insulation.
1
Heating Element
118-045307-011 (6)
118-045307-012 (6)
118-045307-013 (6)
118-045307-014 (6)
118-045307-015 (6)
118-045307-002 (6)
118-045307-003 (6)
118-045307-007 (6)
118-045307-016 (6)
118-045307-017 (6)
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