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7-2. Overload Protection
575V Model
3
Tools Needed:
!
Turn off power and disconnect input
power cord.
1
Circuit Breaker CB1 (460V Model)
(See Parts List For Rating)
CB1 protects the blower motor from over-
load. If CB1 opens the unit does not operate.
Check breaker and reset if open.
2
Fuses F4, F5, F6 (575V Model)
(See Parts List For Rating)
OM-260 545 Page 24
460V Model
3
2
Protect the blower motor from overload. If
any of the fuses are open, the unit will not
operate. Check fuse(s) and replace if open.
3
Fuses F1, F2, And F3
(See Parts List For Rating)
F1, F2, and F3 protect the controller and in-
ternal power supply from overload. If any of
these fuses open the unit does not operate.
Check fuse(s) and replace if open.
1
To access fuses, remove the four screws
securing the front nameplate. Reinstall
nameplate after checking fuse.
.
If a circuit breaker or fuse opens, it usu-
ally indicates a more serious problem
exists. Contact a Factory Authorized
Service Agent.
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