York Rooftop Unit Y14AC04C1LABAB

CAUTION: Prior to any of the following maintenance procedures, shut off all power to the unit. Failure to do so could cause personal injury. Label all wires prior to disconnection when servicing controls. Wiring errors can cause improper and dangerous operation. Verify proper operation after servicing.

MOTORS: Outdoor fan motors are permanently lubricated and require no maintenance. Lubrication, if desired, is to be performed by a qualified service agency. Ventor motors are factory lubricated for an estimated 10-year life.

All wires labeled prior to disconnection?

Verified proper operation after servicing?

Sign off on the maintenance procedure

Prior to any of the following maintenance procedures, shut off all power to the unit

Failure to do so could cause personal injury

Label all wires prior to disconnection when servicing controls

Wiring errors can cause improper and dangerous operation

Verify proper operation after servicing

Replace disposable or clean permanent type as necessary

WARNING: Perform all maintenance operations on the blower motor with power disconnected from the unit. Do not attempt to lubricate bearings with the unit in operation.

Check the motor for accumulations of dust that may block the cooling slots in the motor shell.

Check for loose, damaged or misaligned drive components.

Check that all mounting bolts are tight.

Replace defective parts as required.

Sign off on the blower motor check

The indoor blower motor features ball bearings that do not require periodic lubrication

Periodic lubrication of the motor bearings can extend the life but is optional

Damage can occur if the bearings are over lubricated

To go to bypass mode, the bypass VFD installed in this unit must be switched by hand on the front of the bypass enclosure in the fan cabinet of the rooftop unit

It does not automatically go to bypass mode if the drive fails

The switches on the front of the bypass box control its run mode

WARNING: Perform all maintenance operations on the blower motor with power disconnected from the unit. Do not attempt to lubricate bearings with the unit in operation.

Power disconnected from the unit?

Both pipe plugs at each end shell removed and cleaned out any hardened grease or foreign matter?

One plug on each end replaced with a clean grease fitting?

Grease (Chevron SRI-2 or equivalent) pumped into the bearing cavity until new grease shows at the open port using a low pressure grease gun?

WARNING: Do not over-lubricate.

Motor run for ten minutes until excess grease is purged from the cavity?

Sign off on the blower motor pipe plugs change