Daikin Air Handler CAH025GDDC

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

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)

Sign off on the motor bearings lubrication

Warning: Cleaning should be performed by qualified personnel

Drain pans in any air conditioning unit may have some moisture

Algae, etc., can grow due to airborne spores and bacteria

Periodic cleaning is necessary to prevent this buildup from plugging the drain and causing the drain pan to overflow

Also, keep the drain pans clean to prevent the spread of disease

Dirt and lint can clog the condensate drain, especially with dirty filters. Inspect twice a year to help avoid overflow

Sign off on the coil maintenance

Did you clean the drain pan regularly to prevent mold development?

Did you drain all coils as thoroughly as possible?

Did you fill each coil independently with an antifreeze solution using a small circulating pump and again thoroughly drain?

Did you check freezing point of antifreeze before proceeding to next coil?

Remove and Replace Components of Coils

Did you remove the flat head fasteners located along the sides of the panel?

Did you remove the frame channels that run the length of the unit along the top?

Did you remove the fan shaft, motor, and any drive components?

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.

Belt tension slacked off if belts have been installed

Capscrews E loosened but not removed

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

Setscrews D and capscrews E tightened

Belt tension readjusted if belts have been installed, or belts installed and tension adjusted if not previously installed

All keys are in place and all setscrews and all capscrews are tight before starting the drive