Daikin Packaged Gas / Electric Unit DFG0903L

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, SERVICE 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

Maintenance tasks to be performed

Maintenance tasks completed successfully?

Sign off on the maintenance tasks

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.

Was the heat exchanger door successfully removed?

Was the burner flame visually checked?

Was the heat exchanger door successfully reinstalled?

Sign off on the burner flame check

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

All flue product carrying areas of the furnace, its vent system, and main burners 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

This examination is accomplished in the following manner

1. Disconnect power to the unit and remove furnace section access panel

a. Disconnect the wires from the gas valve after noting which wires are connected to each terminal

b. Disconnect wires from the flame rod and ignition electrode

c. Disconnect the gas piping at the union

Warning: This procedure should be performed by trained personnel only!

Is the flame sensor visibly dirty?

If the flame sensor is dirty, proceed with the cleaning. If not, report the condition to the maintenance team.

Upload a photo of the flame sensor before cleaning

Enter the microamp signal after cleaning

Sign off on the flame sensor 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

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;

Describe the condition of the filter

Sign off on the filter inspection