Daikin Air Handler OAH035GDDC

WARNING: Before servicing fans, lock out and tag out all power to the unit. Fans or belts can cause severe personal injury or death

WARNING: Do not open the hinged access door and screw-fastenerd access panels while the unit is operating. Moving parts and strong suction forces can cause severe personal injury or death

Replace the variable pitched motor sheave with a properly sized, fixed sheave

Replace the adjustable sheaves with fixed sheaves

Measure the diameter of the V-belt outer surface where it passes around the sheave (pitch diameter)

Calculate fan speed from the motor nameplate rpm

Sign off on the fan drive 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

CAUTION: For safety, stop rotating equipment before lubrication

Equipment stopped for lubrication?

Enter the temperature of the bearing after lubrication

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

Compatibility of grease checked?

Select the lubrication interval based on RPM and temperature

Enter the type of grease used for lubrication

Sign off on the fan shaft bearings lubrication

Freezing point of antifreeze solution

Remove and Replace Components of Coils

Power to the unit locked out and tagged out?

Fan shaft, motor, and any drive components removed and replaced?

Coil is clean for maximum performance

Coil checked once a year under normal operating conditions

If coil is dirty, it has been brushed or vacuum cleaned

Chemical coil cleaner used on multiple row coils

Chemical cleaner’s instructions read and followed

Fins not damaged while cleaning