Engineered Air HVAC Unit HE251/O

Are the bearings that require lubrication?

Enter the bearing temperature (°F)

Is the bearing temperature under 158°F (70°C)?

Select the environment conditions

Is the environment dusty or wet?

Select the shaft diameter for grease quantity

Use lithium base lubricant only

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)

Check if motors run in severe conditions and grease as specified by the manufacturer

Verify the position of the slide damper

Adjust the slide damper for the current season

Is the damper operating smoothly without obstruction?

Inspect the damper for any signs of wear or damage

Determine filter-changing intervals based on

Enter the scheduled interval for filter changes (in months)

Is the unit operating with high levels of outside air?

Is there heavy frost or snow in the area?

Check for plugged or excessively dirty filters

Record filter quantities, sizes, and types from submittal record

Ensure replacement filters are of the same size and type

Is the bearing temperature under 120°F (50°C) in a dusty environment?

Is the bearing temperature under 158°F (70°C) in a clean environment?

Select shaft diameter for grease quantity

Use lithium base lubricant for greasing

Ensure not to overgrease the bearings

Additional notes or observations