Daikin Air Handler OAH082GDGM

Coil is clean for maximum performance

Coil checked once a year under normal operating conditions

If coil is dirty, it is brushed or vacuum cleaned

Chemical coil cleaner used on multiple row coils

Instructions of the chemical cleaner followed

Fins not damaged while cleaning

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.

Cleaning should be performed by qualified personnel.

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

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. Service if needed

Warning: This procedure requires trained personnel with PPE!

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

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

Adjust sheave pitch diameter for desired speed

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

Make future adjustments by loosening the belt tension and increasing or decreasing the pitch diameter of the sheave as required

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