Engineered Air HVAC Unit HE20/O

Remove tie-down bolts, straps and blocks

Set all associated electrical switches, controls, thermostats and main disconnect switch to 'OFF' position.

Close all manual valves and field piping valves.

Confirm that all shipping materials have been removed.

Check all bearings, drive and fan set screws for tightness.

Check drive alignment and belt tension.

Inspect all electrical wiring for loose connections.

Is the bearing rotating slowly?

Is a lithium base lubricant being used?

Are extended lubrication lines provided?

Select the shaft diameter and apply the correct grease quantity

Is the bearing temperature under 120°F (50°C)?

Additional notes or observations

Select the SAE value based on operating temperature

Measure the oil’s operating temperature

Is the oil level at the center of the lower-most roller?

Refill with new mineral oil of appropriate viscosity

Wipe the viewing area with a soft cloth dampened with concentrated detergent

Check for any remaining contamination on the viewing area

Note any issues or observations during cleaning

Refer to the UV scanner manufacturers’ literature for additional information

Remove any scale from the burner plates

Ensure holes on burner plates and gas orifices are clear of foreign material

Verify the size of the first 2 orifices on the tee casting are #45

Verify the size of all other casting orifices are #42