Daikin Packaged Rooftop System DPSO28AHMG4DV-4

- Prepare for storage control compartment

1. Daikin Applied recommends that the electronic control equipment in the unit be stored in a 5% to 95% RH (non-condensing) environment

2. 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

3. Check the control compartment every two weeks to confirm that the heat source is functional and is adequate for current conditions;

Check combustion inducer fan for dirt buildup and lint

Check combustion air intake louvers and flue box/vent for accumulation of dirt and debris

Inspect and clean flue tubes and combustion chamber

Keep burner vestibule clean. Dirt and debris can result in poor combustion and lower efficiency

Sign off on the rooftop system maintenance

Warning: This service requires trained personnel with PPE!

Rebel 003–015 units equipped with a ground fault interrupter?

Current sensing donut on the power wires to the compressor(s) present?

Device monitoring the balance between the three phase power and the neutral conductor?

Note: The device is not intended to provide overcurrent or short circuit protection to the equipment.

Device opening the 120V controls circuit in a fault condition?

Open condition on the ground fault interrupter indicates the compressor has been grounded?

Sign off on the Compressor Ground Fault Interrupter Service

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);

The supply, condenser and exhaust fan motors are permanently lubricated and require no periodic lubrication.

Each unit as shipped is trim balanced to operate smoothly. To provide satisfactory operation after shipping and installation, use accepted industry guidelines for field balancing fans.

NOTE: Excessive vibration from any cause contributes to premature fan and motor bearing failure. Monitor overall vibration levels every six months of operation. An increase in levels is an indication of potential trouble.

Fan passed the post-maintenance test?

Sign off on the fan maintenance