Daikin Packaged Gas Unit DCG0721404BXXXAB

WARNING: TO AVOID PERSONAL INJURY OR DEATH DUE TO ELECTRIC SHOCK, DO NOT REMOVE ANY INTERNAL COMPARTMENT COVERS OR ATTEMPT ANY ADJUSTMENT. CONTACT A QUALIFIED SERVICER AT ONCE IF AN ABNORMAL FLAME SHOULD DEVELOP

Examine all flue product carrying areas of the furnace, its vent system, and main burners. It should be examined by a qualified service agency before the start of each heating season. This examination is necessary for continued safe operation. Particular attention should be given to deterioration from corrosion or other sources.

Disconnect power to the unit and remove furnace section access panel

Remove burner assembly: Disconnect the three wires from the gas valve after noting which wires are connected to each terminal

Disconnect wires from the flame rod and ignition electrode

Disconnect the gas piping at the union

The entire burner assembly can now be removed from the unit. NOTE: Use all screws that were removed; they are necessary for safe and proper operation of the unit

Inspect and periodically clean the vent outlet (bird screen) on the access panel

NOTE: Periodic observation of the flame and a log of CO, measurements are recommended. This will aid in determining whether the furnace is operating efficiently or if the furnace requires cleaning

CAUTION: TO PREVENT PROPERTY DAMAGE DUE TO FIRE AND LOSS OF EQUIPMENT EFFICIENCY OR EQUIPMENT DAMAGE DUE TO DUST AND LINT BUILD UP ON INTERNAL PARTS, NEVER OPERATE UNIT WITHOUT AN AIR FILTER INSTALLED IN THE RETURN AIR SYSTEM

Every application may require a different frequency of replacement of dirty filters. Filters must be replaced at least every three (3) months during operating seasons

Dirty filters are the most common cause of inadequate heating or cooling performance. Filter inspection should be made at least every two months; more often if necessary because of local conditions and usage

Dirty throwaway filters should be discarded and replaced with a new, clean filter

Disposable return air filters are supplied with this unit. See the unit Specification Sheet or Technical Manual for the correct size and part number.

To remove the filters, remove the filter access panel on return side of the unit

Sign off on the filter maintenance

WARNING: HIGH VOLTAGE! DISCONNECT ALL POWER BEFORE SERVICING OR INSTALLING THIS UNIT. MULTIPLE POWER SOURCES MAY BE PRESENT. FAILURE TO DO SO MAY CAUSE PROPERTY DAMAGE, PERSONAL INJURY OR DEATH.

WARNING: TO PREVENT PERSONAL INJURY OR DEATH DUE TO IMPROPER INSTALLATION, ADJUSTMENT, ALTERATION, SERVICE OR MAINTENANCE, REFER TO THIS MANUAL. FOR ADDITIONAL ASSISTANCE OR INFORMATION, CONSULT A QUALIFIED INSTALLER, SERVICER AGENCY OR THE GAS SUPPLIER.

CAUTION: SHEET METAL PARTS, SCREWS, CLIPS AND SIMILAR ITEMS INHERENTLY HAVE SHARP EDGES, AND IT IS NECESSARY THAT THE INSTALLER AND SERVICE PERSONNEL EXERCISE CAUTION.

Tighten all belts, set screws, and wire connections

Clean evaporator and condenser coils mechanically or with cold water, if necessary.

Align or replace belts as needed

Check for blockage of condensate drain