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106 F300S/F300SQ Ultraviolet Lamp System
2. Pull the silicone tubing off the low pressure port of the switch.
3. Disconnect the two electrical leads from the switch.
4. Reach inside the air distribution plenum and remove the short length of silicone
tubing which secures the pressure switch to the plenum wall.
5. Insert the high pressure port (longer) of the new switch through the hole in the
plenum wall and secure the switch with a new length of silicone tubing (supplied
with the switch.)
6. Reconnect the electrical leads.
7. Reconnect the low pressure tube to the low pressure port (shorter) on the switch.
8. Reinstall the irradiator cover.
P300M/P300MQ Power Supply
The only routine 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.
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.