Daikin Packaged Gas Unit DCG0721404BXXXAC

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

Inspect filters for dirt and damage

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

Replace dirty filters with new ones

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

Sign off on the filter maintenance

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

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

Flames should be stable, soft and blue (dust may cause orange tips but must not be yellow). The flames must extend directly outward from the burner without curling, floating or lifting off

At least once a year, prior to or during the heating season, make a visual check of the burner flames

NOTE: This will involve removing and reinstalling the heat exchanger door on the unit, which is held by two screws. If you are uncertain about your ability to do this, contact a qualified servicer

If a strong wind is blowing, it may alter the airflow pattern within the unit enough that an inspection of the burner flames is not possible

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