Daikin Dedicated Outdoor Air System WGOV008K1RFBLLB002000S7500

Lubrication Compatibility Check

Verify lubricant compatibility with R-410A

Ensure system is charged with OEM recommended lubricant for R-410A

Is the system ready for use with R-410A?

Record water pressure drop (heating)

Record water pressure drop (cooling)

Compare logged data with start-up and annual data

Ensure all construction dirt and debris are removed from the water circulating system.

Connect supply and return run-outs together at each conditioner location if equipped with water shutoff valves.

Fill the system at the city water makeup connection with all air vents open.

Close all air vents after filling.

Start main circulator with the pressure reducing valve open.

Check vents in sequence to bleed off any trapped air

Is power to the heat rejector unit off and supplementary heat control set at 80°F (27°C)?

Ensure the recycle or recovery equipment is designed for R-410A

Install a valve in the charging line to flash the liquid to vapor if necessary

Enter the superheat value (8 to 14 degrees)

Enter the head pressure (335-355 PSIG)

Verify the system is designed for commercial use

Check filters at 60-day intervals

Can light be seen through the filter when held up to sunlight or a bright light?

Is filter replacement necessary based on light visibility?

Replace the filter if necessary

Describe any issues encountered during the inspection

Is a more critical standard for filter inspection required?