York D2NA060 User Manual
NORMAL MAINTENANCE
WARNING: Prior to any of the following maintenance proce-
dures, shut off all power to the unit, to avoid per-
sonal injury.
sonal injury.
Periodic maintenance consists of changing or cleaning filters.
Under some conditions, the main burners should be cleaned.
Under some conditions, the main burners should be cleaned.
FILTERS - Inspect once a month. Replace Disposable or clean
Permanent Type as necessary. DO NOT replace Permanent
Type with Disposable.
Permanent Type as necessary. DO NOT replace Permanent
Type with Disposable.
MOTORS - Indoor and outdoor fan motors, along with the com-
bustion blower are permanently lubricated and require no
maintenance.
bustion blower are permanently lubricated and require no
maintenance.
OUTDOOR COIL - Dirt should not be allowed to accumulate on
the outdoor coil surface or other parts in the air circuit. Cleaning
should be as often as necessary to keep the coil clean. Use a
brush, vacuum cleaner attachment, or other suitable means. If
water is used to clean the coil, be sure that the power to the unit
is shut off prior to cleaning.
the outdoor coil surface or other parts in the air circuit. Cleaning
should be as often as necessary to keep the coil clean. Use a
brush, vacuum cleaner attachment, or other suitable means. If
water is used to clean the coil, be sure that the power to the unit
is shut off prior to cleaning.
CAUTION: Exercise care when cleaning the coil so that the
coil fins are not damaged.
Do not permit the hot condenser air discharge to be
obstructed by overhanging structures or shrubs.
obstructed by overhanging structures or shrubs.
BURNER - At the beginning of each heating season, make a
visual check of the main burner flame. If it is not possible to ad-
just for the proper flame, the burners may need cleaning.
visual check of the main burner flame. If it is not possible to ad-
just for the proper flame, the burners may need cleaning.
TO CLEAN BURNERS - Remove them from the furnace as ex-
plained in “Burner Instructions”. Clean burners with hot water
applied along top of the burner.
plained in “Burner Instructions”. Clean burners with hot water
applied along top of the burner.
COMBUSTION AIR DISCHARGE - Visually inspect discharge
outlet periodically to insure soot and dirt buildup is not exces-
sive. If necessary, clean to maintain adequate combustion air
discharge.
outlet periodically to insure soot and dirt buildup is not exces-
sive. If necessary, clean to maintain adequate combustion air
discharge.
The manufacture recommends that the furnace system be in-
spected once a year by a qualified service person.
spected once a year by a qualified service person.
CLEANING FLUE PASSAGES AND HEATING ELEMENTS
With proper combustion adjustment the heating element of a
gas fired furnace will seldom need cleaning. If the element
should become sooted, it can be cleaned as follows:
gas fired furnace will seldom need cleaning. If the element
should become sooted, it can be cleaned as follows:
1. Remove the burner assembly as outlined in “BURNER IN-
STRUCTIONS”.
2. Remove the screws securing the restrictor plate to the tube
sheet.
3. Using a wire brush on a flexible wand, brush out the inside
of each heat exchanger from the burner inlet and flue outlet
ends.
ends.
4. Brush out the inside of the restrictor plate to the tube sheet.
5. If soot build-up is particularly bad, remove the vent motor
and clean the wheel and housing.
6. After brushing is complete, blow all brushed areas with air
or nitrogen. Vacuum as needed.
7. Replace parts in the order they were removed in steps 1
thru 3.
035-18265-001-A-0202
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Unitary Products Group
MAINTENANCE