Daikin Air Handler CAH025DGCC

Warning: Moving belt and fan can cause severe personal injury or death. Always ensure safety measures are in place.

Is the belt tension at the lowest tension at which the belt does not slip under peak load conditions?

Measure the force applied to the belt tension checker

Does the measured force match the required values?

Is the belt free from foreign material that can cause slippage?

Is the V-drive in good condition?

Are the belt and fan guards on plenum fan units always in place?

Is the fan locked and tagged out to prevent accidental start up?

CAUTION: For safety, stop rotating equipment before lubrication

Did you add one half of the recommended amount of lubricant?

Start bearing, and run for a few minutes

Did you stop the bearing and add the second half of the recommended amount of lubricant?

A temperature rise, sometimes 30°F (1°C) after lubrication is normal. Bearing should operate at temperature less than 200°F (94°C) and should not exceed 225 (107°C) for intermittent operation

CAUTION: For best results, specific applications should be monitored regularly and lubrication intervals and amounts adjusted accordingly

Any good quality lithium or lithium complex base grease, using mineral oil, conforming to NLGI grade 2 consistency, and an oil viscosity of 455-1135 SUS at 100°F (100-200 cSt at 40°C) may be used for re-lubrication

Compatibility of grease is critical. Lubricatable bearings are supplied with grease fittings or zerks for ease of lubrication with hand or automatic grease guns. Always wipe the fitting and grease nozzle clean

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 and correct 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?

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.