Chromalox UB-2502A - Manual (Page 7)

7
MAINTENANCE
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.
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.
RENEWAL PARTS IDENTIFICATION
Model Voltage Phase Heating Element
240 3 118-045307-011 (6)
480 1 or 3 118-045307-012 (6)
UB-2502A 550 3 118-045307-013 (6)
575 3 118-045307-014 (6)
600 3 118-045307-015 (6)
240 3 118-045307-002 (6)
480 1 or 3 118-045307-003 (6)
UB-3002A 550 3 118-045307-007 (6)
575 3 118-045307-016 (6)
600 3 118-045307-017 (6)
1
1 HEATING ELEMENTS
Note: Number in parentheses ( ) indicates the quantity of that part required.