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112 F300S/F300SQ Ultraviolet Lamp System
NOTE: When colors are indicated, the first is the wire color and the second is
the stripe color.
P300MT Power Supply
The P300MT power supply is electrically identical to the standard P300M power
supply except that the chassis is 7 inches (184 mm) shorter than the standard P300M.
NOTE: The P300MT cannot be retrofitted for the Quick Restart Option (QRO).
Routine Maintenance
The only maintenance required on the power supply is periodic cleaning. The service
interval will vary depending on the environment in which the unit is operated.
Safety Procedures
Before servicing the power supply, first turn off and disconnect all power to the unit.
Table 20. Transformer Terminal Orientation
XFMR COM Tap
P300M/
P300MQ
T101 Black/White Red/White
T102 Black/White Red/White
WARNING: Exercise extreme caution; the chassis weighs up to
40.3 kg (88.6 lbs.)
All high voltage capacitors have internal discharge resistors
which should discharge to a safe level in 5 seconds. Physically
shorting the capacitor terminals with an insulated screwdriver
blade is advised as a second level of safety.
CAUTION: The integrated circuits on the control board
assembly can be damaged by relatively small charges of static
electricity. Static charges transmitted by fingertip (for example,
those generated by walking across a carpet) may be sufficient
to cause damage. Always touch a grounded metal surface
before removing or examining the control card.