York DGAA056BDTA Installation Instructions Manual page 5

Sealed combustion downflow gas furnace
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035-16328-002
Rev. C(0902)
Return Air Grille Part No.
7900-287P/A * White
250 SQ. IN
MINIMUM
FREE AREA
B
250 SQ. IN.
MINIMUM
50
SQ
LN
FREE
AREA
_ MINIMUM
FREE AREA
Furnace to Closet Door Clearance --
5 Inches or more
The closet door MUST have a minimum o1250 Square Inches
of free area in the upper half of the door.
If opening for return air is located in the floor or sidewalls and
below the top of the furnace casing:
1. 6 inches minimum clearance must be provided on side
where return is located, and
2. 6 inches minimum clearance must be maintained from the
Pont of furnace.
J_
i5_°_r
_ac/_"t Return Air Closet Door Part No.
DOOR
7900-7771/C * White
FIGURE 3 : Closet To Door Clearance
- 6" or Greater
As an option to _e lower grill,
an undercut of 2-1/2" will provide
50 Square
Inches of free area.
250 SQ, IN
MINIMUM
t FREE AREA
B
50 SQ IN.
MINIMUM
FREE AREA
250 SQ. IN
MINIMUM
FREE AREA
Furnace to Closet Door Clearance --
Greater than 1 Inch and Up to 5 Inches
1. The closet door MUST have a minimum of 250 Square Inches
of free area in the upper half of the door and a minimum of
50 Square Inches of free area in the lower area of the door.
The lower closet door grille may be omitted if an undercut of
2-1/2 inches is provided in the door.
2. A fully Iouvered closet door MUST have a minimum of 250
Square Inches of free area in the upper half of the door.
FIGURE 4 : Furnace To Closet Door Clearance
- 1" To 6"
_i_
250 SQ. IN
MINIMUM
FREE AREA
50 SQ. IN.
MINIMUM
FREE AREA
Furnace to Closet Door Clearance --
Less than 1 Inch
The closet door MUST have three return air gdlles. The
total free area of the two upper grilles must be minimum
of 250 Square Inches. The total free area of the lower
gdlle MUST be a minimum of 50 Square Inches.
The grilles MUST BE ALIGNED directly opposite the
return air grille of the furnace door.
FIGURE 5 : Furnace To Closet Door Clearance
- Less Than 1"
Unitary Products Group
5

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