Daikin Packaged Gas / Electric Unit DFG0727DH

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!

Turn off the fuel or combustion air supply before starting the cleaning process.

Is the flame sensor visibly dirty?

Upload a photo of the flame sensor before cleaning

Carefully clean the flame sensor with steel wool.

Upload a photo of the flame sensor after 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

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.

Visual check of the burner flames

Sign off on the burner flame check

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 months during operating seasons

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

Sign off on the filter replacement