Daikin Air Handler CAH005GDAM

CAUTION: Bearing overheating potential. Can damage the equipment. Do not over lubricate bearings. Use only a high grade mineral grease with a 200°F safe operating temperature.

NOTE: Direct-Drive Class Il fans that are supplied with TECO motors have double shielded bearings on frame sizes 140T-280T. These bearings are pre-packed with a long life grease and are not regreaseable. Larger frame size TECO motors are regreaseable and follow the same lubrication recommendations as all other motors

Choose the type of lubricant used

Enter the amount of lubricant used

Did you clean upper and lower grease plugs?

Did you insert a grease fitting into the upper hole and add clean grease with a low pressure gun?

Did you run the motor for five minutes before replacing the plugs?

Sign off on the motor bearings lubrication

Adjust motor base forward to release belt tension

Remove the belts for easier adjustment

Loosen, but do not remove both of the locking setscrews A in the outer locking ring by using a hex key or torque wrench with a hex bit

Adjust sheave to desired pitch diameter by turning the outer locking ring, using a spanner wrench or drift inserted into the three holes that are located 120° apart on the ring

Tighten BOTH locking screws A in the outer locking ring before operating the drive. Use a torque wrench and tighten to the value

Replace belts and adjust the motor base to tension the belts properly

Do not loosen any screws other than the two locking screws A in the outer locking ring when adjusting the sheave pitch. Do not operate the drive until the locking screws have been set to the torque specifications

Freezing point of antifreeze solution

Remove and Replace Components of Coils

Power to the unit locked out and tagged out?

Fan assembly removed and replaced?

Check all moving parts for wear

Check bearing collar, sheave, and wheel hub setscrews, sheave capscrews, and bearing hold-down bolts for tightness

Annually check and snug all electrical connections

Inspect for signs of water damage such as corrosion and repair if necessary

Check ground conductor and connection integrity and correct if needed

Warning: Moving belt and fan can cause severe personal injury or death. Always use approved equipment and ensure floor surfaces are dry and free of oil or grease.

General Rules of Tensioning: The ideal tension is the lowest tension at which the belt does not slip under peak load conditions. Check tension frequently during the first 24 to 48 hours of operation. Over tensioning shortens belt and bearing life. Keep belts free from foreign material that can cause slippage.

Force applied to the belt tension checker

Does the measured force match the ideal values?

Inspect V-drive on a periodic basis. Adjust tension if the belt is slipping. Do not apply belt dressing. This can damage the belt and cause early failure.

Is the belt and fan guards on plenum fan units in place?

Is the fan locked and tagged out to prevent accidental start up?

Is the filter compartment entered only when the fan is completely stopped?