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70 NetworkAIR FM DX 60 Hz Operation, Maintenance, and Troubleshooting
Mechanical
Check the evaporator fans and motors. All components should be moving freely with no signs of
binding or damage.
Check the condenser fluid cooler motors, fan blades, and fan guards. All components should be
moving freely with no signs of binding or damage.
Inspect the set-screws on fan blades to make sure that they are tight.
Verify that the condensate line is unrestricted.
Verify there are no leaks at the fill and drain valves of the humidification system.
Verify the humidification modes of operation are functional.
Ensure that there are no kinks in the steam delivery system from the cylinder top to the steam
distributor.
On optional cleanable cylinders, check for build-up in the cylinder and clean as required.
• Cylinder size________________________________________
Replace disposable humidifier cylinders as required.
• Cylinder size________________________________________
Visually inspect the liquid line sight glass for excessive bubbles (when full cool) and condition of
moisture indicator.
Verify the chilled water supply temperature for Modules with the MultiCool option.
• Chilled water supply temperature.
Electrical
Inspect the electrical panel for tight connections. Look for any overheated connections from loose
contact terminals.
Confirm that the incoming main power matches the Module nameplate. Measurement should be
within 10% of nameplate listing.
Verify the control transformer voltages. Voltage should be within 10% of the rated output voltage.