Daikin Packaged Rooftop System DPS005AHCE4DW-4

Warning: This maintenance requires trained and experienced service technician

Warning: Fuel pressure settings and control settings should be made only by persons thoroughly experienced with the burner and control system

Warning: Always replace covers on burner controls and boxes as the electrical contacts are sensitive to dust and dirt

Warning: Installation and maintenance must be performed only by qualified personnel who are experienced with this type of equipment and familiar with local codes and regulations

Warning: Gas or Hot Water Piping: A qualified Architect or Systems HVAC Design Engineer familiar with piping design, local codes and regulations, must provide piping design

Danger: Moving machinery and electrical power hazards. May cause severe personal injury or death. Disconnect and lock off all power before servicing equipment

Warning: Sharp edges are inherent to sheet metal parts, screws, clips, and similar items. May cause personal injury

Danger: Hazardous voltage. May cause severe injury or death. Disconnect electric power before servicing equipment

All blowers, including furnace inducer, have sealed bearings. No lubrication is necessary

Check vent terminal screens for blockages and accumulation

Heater and the Venting System shall be inspected once a year by a qualified service agency.

Check all valves, piping and connections of Gas Train for leakage with a rich soap solution or UL 913 combustible gas leak detector. Any bubbling is considered a leak and must be eliminated.

Inspect and clean flame rod, ignition electrode, and burner manifold

Remove any debris that may have accumulated in the drain pain and drain

Sign off on the rooftop system maintenance

Check cabinet air filters and replace if dirty

After heavy snowfall verify that combustion air intakes are not blocked by snow

Periodically check during periods of snow accumulation as drifting may also lead to combustion air intake blockage

Open a door on each section and verify that no moisture or debris is accumulating in the unit monthly during preparation for storage (p.137);

Prepare for storage control compartment

Is the electronic control equipment in the unit stored in a 5% to 95% RH (non-condensing) environment?

It may be necessary to put a heat source (light bulb) in the main control panel to prevent the accumulation of atmospheric condensate within the panel. The location and wattage of the heat source is dependent on local environmental conditions

Is the heat source adequate for current conditions?

Sign off on the rooftop system maintenance

Clean Option E Coated Coils Surfaces

Quarterly cleaning is essential to extend the life of an Option E Coated Coil and is required to maintain warranty coverage

Coil cleaning shall be part of the unit's regularly scheduled maintenance procedures

Failure to clean an Option E Coated Coil will void the warranty and may result in reduced efficiency and durability in the environment

For routine quarterly cleaning, first clean the coil with the below approved coil cleaner

Coil cleaned with approved cleaner?

After cleaning the coils with the approved cleaning agent, use the approved chloride remover (under the Recommended Chloride Remover section) to remove soluble salts and revitalize the unit

Coil cleaned with approved chloride remover?