Daikin Air Handler CAH011GDAM

WARNING: Personal Injury Hazard. Power supply can cause electrical shock. Always disconnect all power to unit before servicing

WARNING: UV-C exposure is harmful to the skin and eyes. Looking at an illuminated UV-C bulb can cause permanent blindness. UV-C skin exposure can cause cancer

WARNING: Fluorescent bulbs contain mercury, which can cause personal injury if breathed or ingested. Use appropriate protective gear to clean up broken bulbs

Verify the UV lights are off by using the view window

Disconnect power to the power receptacle before servicing

Verify the power is disconnected

Before opening the access panels, use the viewing window to make sure the UV lights are off

Before handling, allow bulbs to cool for 5 minutes

Grasp body of bulb firmly at each end

Warning: This maintenance check 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?

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.

Setscrews D and capscrews E tightened?

Warning: This maintenance check requires trained personnel with PPE!

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

Coils cleaned and free from mold?

Freezing point of antifreeze solution

Remove and Replace Components of Coils

Power to the unit locked out and tagged out?

Flat head fasteners removed from the panel?

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