CCI Thermal Technologies FX5-SD - Explosion-Proof Electric Air Unit Heater - Manual (Page 2)

2
For Electric Forced Air Heaters
Heater Model: _________________________ Serial No.: ___________________________
Date of Maintenance: ___________________ Maintenance Done By: _________________
Comments: _________________________________________________________________
__________________________________________________________________________
WARNING
Disconnect heater from power supply at integral disconnect or fuse box before opening enclosures or servicing heater.
Lock the switch in the “OFF” (open) position and/or tag the switch to prevent unexpected power application.
IF INTEGRAL DISCONNECT IS BEING SERVICED, verify that power has been disconnected at fuse box or main panel.
Lock the switch in the “OFF” (open) position and/or tag the switch to prevent unexpected power application.
This heater should only be serviced by personnel with heating and hazardous location equipment experience.
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Preventative Maintenance Grid
Regular Service Severe Service
Annual
Start Up
1 Month 3 Month 12
Month
Annual
Start Up
1 Month 3 Month 12
Month
Clean:
ƒ Finned Tubes
ƒ Fan
ƒ Fan Guard
ƒ Motor
ƒ Louvers
Remove dust using compressed air.
Do not Spray with water or
solvents.
Do not immerse in water or
solvents.
X X X
Electrical
Check all terminal
connections and
conductors.
Tighten loose connections.
Replace conductors with damaged
insulation & frayed wiring. For
drilling rigs, this should be done
with every rig re-location.
X X X X
Inspect contactor
contacts.
If badly pitted, burned or welded
shut, replace with factory supplied
contactor. For drilling rigs, this
should be done with every rig re-
location.
X X X
Check Fuses The Correct fuse rating and type
are printed on the circuit board.
Always ensure a backup fuse is
available on the PCB. For drilling
rigs, this should be done with
every rig re-location.
X X
Mechanical
Check for fluid
leakage
Inspect the Pressure Release Valve
label indicator for signs of rupture
and degradation. If any fluid
leakage occurs from the heater,
disconnect it from the power
supply and have the core replaced
immediately. For drilling rigs,
this should be done with every
rig re-location.
X X X
Check all enclosures The interiors of each enclosure
must be clean, dry and free of
foreign materials. For drilling
rigs, this should be done with
every rig re-location.
X X X
Check motor shaft
bearing play
If the motor does not run quietly
and smoothly and has excessive
play replace the motor. For
drilling rigs, this should be done
with every rig re-location.
X X X
h e at e r m a i n t e n a n c e c h e c k l i s t
p r e v e n tat i v e m a i n t e n a n c e g r i d