Engineered Air HVAC Unit LM-8-K

Refer to motor manufacturer for lubrication recommendations

Remove grease drain plugs and operate motor for 15 minutes before replacing plugs

Ensure not to over grease the motor

Recommended Motor Lubrication Intervals for motors over 40 HP (29.8 kW)

Grease motors running in severe conditions as specified by the manufacturer

Check set screws for looseness on the shaft

Tighten set screws where required

Was the check performed before initial start-up?

Was the check performed after a run-in period of 2 weeks?

Was the check performed on a 4 month interval?

Record any issues found during the check

Record the torque applied to set screws

Ensure that sufficient airflow as marked on the unit rating plate is passing through the heater.

Check for signs of potential problems

Inspect open coil elements for maintenance needs

Check if elements viewed in the dark with the unit operating have areas that are glowing bright red.

Measure the static pressure drop across the DX coil

Does the static pressure drop match the specified value in the Unit Function?

Adjust bypass dampers to match the specified static pressure drop, if necessary

Describe any adjustments made to the bypass dampers

Lubrication of Dodge Fan Bearings — Ball Bearing Pillow Block

Select the shaft diameter and speed (RPM) for lubrication schedule

Is it safe to re-lubricate while running?

Re-lubricate while running until some purging occurs at seals, if safe

Adjust lubrication frequency based on condition of purged grease

Consider hours of operation, temperature, and surrounding conditions

Double the lubrication frequency for 24-hour operation

Select the grease type used for lubrication

Lubricate bearings prior to extended shutdown or storage