Daikin Air Handler CAH012GDAM

CAUTION: Sharp fin edges are a potential injury hazard. Avoid contact with them

To obtain maximum performance, the coil must be clean

Check once a year under normal operating conditions and, if dirty, brush or vacuum clean.

Use a chemical coil cleaner on multiple row coils

Read and follow the chemical cleaner's instructions as some cleaners may contain harsh chemicals

Take care not to damage fins while cleaning.

Warning: This maintenance check requires trained personnel with PPE!

Loosen setscrews B and C in moving parts of sheave and pull out external key E.

Adjust sheave pitch diameter for desired speed, open moving parts by half or full turns from closed position.

Replace external key E and securely tighten setscrews B over key and setscrews C into keyway in fixed half of the sheave.

Put on belts and adjust tension. Do not force belts over grooves.

Make future adjustments by loosening the belt tension and increasing or decreasing the pitch diameter of the sheave by half or full turns as required. Readjust belt tension before starting drive.

To provide the same pitch diameter, adjust both halves of the two-groove sheaves by the same number of turns from closed position.

Verify that all keys are in place and that all se screws are tight before starting drive. Check setscrews and belt tension after 24 hours service.

Sign off on the Pitch Key Sheave Maintenance

Warning: This procedure requires trained personnel with PPE!

Belt tension slacked off if belts have been installed

Capscrews E loosened but not removed

NOTE: This key projects a small amount providing a grip for removing

Pitch diameter adjusted by opening or closing the movable flanges by half or full turns

NOTE: Two-groove sheaves are supplied with both grooves set at the same pitch diameter. To provide the same pitch diameter for satisfactory operation, move both movable flanges the same number of turns. Do not open sheaves more than five turns for A belts or six turns for B belts

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

Motor bearings and ball bearings lubricated

Supply and return fans lubricated

Upper and lower grease plugs removed and cleaned

Grease fitting inserted into the upper hole and clean grease added with a low pressure gun

Motor run for five minutes before replacing the plugs

Amount of lubricant used (in oz)

CAUTION: For safety, stop rotating equipment before lubrication

Equipment stopped for lubrication?

Enter the temperature after lubrication

CAUTION: Monitor specific applications regularly and adjust lubrication intervals and amounts accordingly

Compatibility of grease checked?

Select the RPM and temperature range

Select the recommended lubricant