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Diagnostic IGC Control LEDs — The IGC board
has LEDs for diagnostic purposes. Refer to Troubleshooting
sectiononpage51.
Optional Hinged Access Doors — When the optional
service package is ordered or the if the hinged access doors
option is ordered, the unit will be provided with external and
internal hinged access doors to facilitate service.
Four external hinged access doors are provided on size
016-025 units. Two external hinged doors are provided on size
028 units. All external doors are provided with 2 large
1
/
4
turn
latches with folding bail-type handles. (Compressor access
doors have one latch.) A single door is provided for filter and
drive access. One door is provided for control box access. The
control box access door is interlocked with the non-fused
disconnect which must be in the OFF position to open the door.
Two doors are provided on 48TM016-025 units for access to
the compressor compartment.
Two internal access doors are provided inside the filter/
drive access door. The filter access door (on the left) is secured
by2small
1
/
4
turn latches with folding bail-type handles. This
door must be opened prior to opening the drive access door.
The drive access door is shipped with 2 sheet metal screws
holding the door closed. Upon initial opening of the door, these
screws may be removed and discarded. The door is then held
shut by the filter access door, which closes over it.
SEE
DETAIL
"C"
SEE
DETAIL
"C"
SEE
DETAIL
"C"
48TMD016
48TMD020-028 AND 48TMF016
48TMF020-028
Fig. 56 — Spark Gap Adjustment