Daikin Rooftop System MPS 026G

Heater and Ventilating systems - Inspected by a qualified service agency once a year.

Gas Train - Check all valves, piping and connections for leakage. Inspect and clean flame rod, ignition electrode, and burner manifold.

Condensate Pan/Drain/P-Trap - Check pan, drain, and p-trap.

Warning: Disconnect power to the drive motor before starting the procedure.

Power to the drive motor disconnected

Upload a photo of the segment inserted between hub plates

Segment pressed towards the center of the wheel and inwards against the spoke flanges

Segment Retainer closed and latched under the Segment Retaining Catch

Wheel rotated 180° and second segment installed opposite the first for counter balance

Two installed segments rotated 90° to balance the wheel while the third segment is installed

Wheel rotated 180° again to install the fourth segment opposite the third

Supply fan motors should have grease added after every 2000 hours of operation.

Motor is warm, but not running?

Upper and lower grease plugs removed and cleaned?

Grease fitting inserted into the upper hole and small amount of clean grease added with a low pressure gun?

Motor run for five minutes before installing the upper grease plug?

Sign off on the supply fans bearings lubrication

Check burner fan wheel for dirt buildup and lint

Check combustion air intake louver and flue box for dirt buildup and accumulation of windborne debris

Inspect flue tubes and combustion chamber, cleaning as required

Keep burner vestibule clean. Dirt and debris can result in burner air blockages

Sign off on the rooftop system maintenance

Warning: This maintenance check requires trained personnel with PPE!

Low refrigerant pressure sensing switch functional

Enter the suction pressure when the low pressure switch disables the compressor

Enter the suction pressure when the low pressure switch enables the compressor

High refrigerant pressure switch functional

The low pressure switch can be replaced without reclaiming the refrigerant

The high pressure switch cannot be replaced unless the refrigerant has been reclaimed

Has the refrigerant been reclaimed?