York DGPA070ABTA User Manual
SEALED COMBUSTION
DOWNFLOW GAS FURNACE
MODELS: DGAA, DGAH, DGPA, AND DGPH
For Installation In:
1, Manufactured (Mobile) Homes
2. RecreationaIVehicles & Park Models
3. Modular Homes & Buildings
IMPORTANT - Only individuals having proven expedence with this
type ofequipment shouldattempt to performset-up.
Proper furnace set-up and adjustment is the responsibility of the
retailer/homeowner and is not covered under warranty.
FURNACE START-UP CHECK LIST
Has roof jack crownbeen correctly installed?
Has furnace gas valve and burner orificebeen correctlycon-
vetted for Propane. gaswhere applicable?
Has furnace gas valve been de-rated for altitudesabove 2000
feet where applicable?
Is gas lineoutlet pressure properlyset for fuel type? (naturalgas
is 3.5" W.C.; Propane is 10"W.C.)
Is cross-overduct installed per home builderand UPG installa-
tion instructions?
Has furnace been operated througha complete heatingcycle?
Has the pilotflame been adjusted properly? (DGPH and DGPA
Models)
035-16328-002 Rav. C (0902)
035-16328-002Rev.C(0902)
FURNACE SPECIFICATIONS
DGAA -- AUTOMATIC IGNITION -- WITH BUILT-IN COIL CABINET -- 4 TON - AIC READY
MODEL NO, Factor'/Equipped for use with Input/BTUH OutputJBTUH
DGAA056BDTA NATURAL GAS 56,000 45,000
DGAA07OBDTA NATURAL GAS 70,000 56,000
DGAAO77BDTA NATURAL GAS 77,000 62,000
DGAAO9OBDTA NATURAL GAS 90,000 72,000
DGPA -- STANDING PILOT -- WITH BUILT-IN COIL CABINET -- 3 TON - AIC READY
DGPA056ABTA NATURAL GAS 56,000 45,000
DGPA070ABTA NATURAL GAS 70,000 56,000
DGPA077ABTA NATURAL GAS 77,000 62,000
DGPA090ABTA NATURAL GAS 90,000 72,000
DGPH -- STANDING PILOT -- WITH BUILT-IN COIL CABINET -- 3 TON - NO AIC CONTROLS
DGPHO56ABTA NATURALGAS 56,000 45,000
DGPHO70ABTA NATURALGAS 79,000 66,000
DGPH077ABTA NATURALGAS 77,005 62,000
DGPH09OABTA NATURALGAS 90,000 72,000
DGAH -- AUTOMATIC IGNITION -- HEATING ONLY -- NO COIL CABINET
DGAH056BBSA
DGAHO77BBSA
Electdcal Power Supply
Thermostat Circuit
Nominal Anticipator Setting
I NATURALGASI 66,090I 45,006
Breaker or Fuse
Gas Valve Inlet
NATURAL GAS 77,000 62,000
ELECTRICAL SPECIFICATIONS
115 Volts - 60 Hz - 1 Phase
15 Arnp
24 Volt - 60 Hz - 40 VA
.50
1/2" NFPT
24-314"
DGAHSeries
FIGURE 1 : Furnace Dimensions
24-314"
19.1/2 °
19-1/2"
76"
5g=1/2"
DGPH, DGPA & DGAA Series
2 Unitary Products Group
035-16328-002 Rev. C (0902)
GENERAL INFORMATION
NOTE: The words "Shall" or "Must" indicate a requirement
which is essential to satisfactory and safe product perfor-
mance.
The words "Should" or "May" indicate a recommendation
or advice which is not essential and not required but
which may be useful or helpful.
IMPORTANT - These instructions are primarily intended to
assist qualified individualsexperienced in the proper installa-
tion of heating and/or air conditioning appliances. Some local
codes require licensed installation service personnel for this
type of equipment. Read all instructions carefully before start-
ing the installation.
I_WARNING
I
Improper installation may damage equipment,
can create a shook hazard, and will void the war-
ran_
The furnace shall be installed so the electrical
components are protected from water
The furnace is not to be used for temporary heat-
ing of buildings or structures under construction.
Do not test the fuel system at more than 14
inches water column after fumace has been con-
nected to the fuel line. Such testing may void the
warren_ Any test run above 14 inches water col-
umn may damage the furnace control valve
which could cause an explosion, fire, or asphyxi-
ation.
INSTALLATION STANDARDS
CODECOMPLIANCE
The installer must comply with all local codes and regulations
which govern the installation of this appliance. Local codes
and regulations shall take precedent over these regulations
where applicable. In lieu of local codes, the appliance shall
be installed in accordance with one or more of the following
standards.
Manufactured homes in the U.S.A.:
1, Federal Manufactured Home Construction & Safety
Standard (HU.D. Title 24, Part 3280),
2. National Fuel Gas Code (ANSI-Z223,1, NFPA-54).
3. National ElectricalCode (NFPA 70).
Manufactured homes in Canada:
1, Natural Gas and Propane Installation Code (CAN/CSA
B149,1).
2. Canadian Electrical Code, Part 1 (CSA C22,1)
Recreational Vehicles in U.S.A.:
1. Standard on Recreational Vehicles (NFPA 1192, formerly
NFPA 501C).
2. National Electrical Code (NFPA 70).
Recreational Vehicles in Canada:
1,
Unit installationshall comply with current CSA standard
CAN/CGA-Z240.4.2 - Installation Requirements for Pro-
pane Appliances and Equipment in Recreational Vehi-
cles.
2. Unit electrical widng and grounding shall comply with
current CSA standard C22.2 No.148/CAN/CSA-Z240.6.2
- Electrical Requirements for recreational vehicles.
HIGH ALTITUDE INSTALLATION
For elevation above 2,000 feet, derate furnace input 4% for
each 1,000 feet of elevation above sea level. Derating is
accomplished by reducing the orifice size. See Derating
Chart for orifice size.
In Canada, for elevations from 2000 to 4500 feet derate by
reducing gas manifold pressure to 3.0" W.C. for natural gas
and 9.0" W.C. for LP gas.
IA CAUTIONj
• Never attempt to alter or modify thisfurnace orany
of its components.
• Never attempt torepair damaged or inoperable
components. Such action could cause unsafe opera-
tion, explosion, fire and/or asphyxiation.
• If a malfunction has occurred, or if you feel that the
furnace is not operating as it should, contact a quali-
fied service agency or gas utility for assistance.
MINIMUM FURNACE CLEARANCES
Access for servicing is an important factor in the location of
any furnace. A minimum of 24 inches should be provided in
front of the furnace for access to the heating elements and
controls. This access may be provided by a closet door or by
locating the furnace 24 inches from a facing wall or partition.
These furnaces are design certified for the following minimum
clearances from combustible material in alcove or closet
instanation
Table 1: MINIMUM CLEARANCES
CLOSET ALCOVE
BACK 0" 0"
SIDES 0" 0"
FRONT 6" 24"
TOP 2" 2"
ROOF JACK 0" 0"
DUCT 0" O"
Unitary Products Group 3
035-16328-002Rev.C(0902)
RETURN AIR REQUIREMENTS
CLOSET INSTALLATIONS
Additional Requirements
Additionalrequirements for floor and ceiling returnsystem for
closet installed sealed combustion heating appliance are
given in the next paragraph.
Floor or Ceiling Return Air System
Listed in the next paragraph are the conditions to be met by
Manufactured Home Manufacturers to have U.L. acceptance
of in-floor or ceiling return air systems of closet installed
direct vent forced air heating appliances for Manufactured
Homes to be sold in the United States.
1. The return-air opening into the closet, regardless of loca-
tion, is to be sized not less than specified on the appli-
ance's rating plate.
2.
If the return-air opening is located in the floor of the
closet (versus the verticalfront or side wail), the opening
is to be provided with means to prevent its inadvertent
closureby a fiat object placad over the opening.
3.
The cross-sectional area ofthe return duct system (when
located in the floor or ceiling of the manufactured home)
leading into the closet is to be not less than that of the
opening specified on the appliance's rating plate.
4.
The total free area of openings in the floor or ceiling reg-
isters serving the return-air duct system is to be not less
than 150% of the size of the opening specified on the
appliance's rating plate. At least one such register is to
be located where likelihood of its being covered by car-
peting, boxes, and other objects is minimized.
5.
Materials located in the return duct system have a flame
spread classification of 200 or less.
6.
Non-combustiblepans having one-inch upturned flanges
are located beneath openings in the floor return duct
system.
7.
Wiring materials located in the return duct system con-
form to Article 300-22 (B&C) of the National Electrical
Code (NFPA-70).
8.
Gas piping is not run in or through the return duct sys-
tem.
9.
The negative pressure in the closet as determined by
test with the air-circulating fan operating at high heating
speed and the closet door closed is to be not more nega-
tive than minus 0.05-inch water column.
10.
For floor return systems, the manufactured home manu-
facturer or installer shallaffix a prominent marking onor
near the appliance where it is easily read when the
ctoset door isopen. The marking shall read:
_WARNING
HAZARD OF ASPHYXIATION, DO NOT COVER
OR RESTRICT FLOOR OPENING
AIR DISTRIBUTION SYSTEMS
For proper air distribution, the supply duct system shall be
designed so that the static pressure does not exceed the
listed static pressure rating on the furnace rating plate.
Three typicaldistdbution systems are illustratedin Figure 2.
Location, size and number of registers should be selected on
the basis of best air distribution and floor plan of the home.
The Air Temperature Rise is to be adjusted to obtain a tem-
perature dse within the range(s) specified on the furnace rat-
ing plate.
A
E
Singletrunkduct _ C
Dualtrunk duct with crossoverconnector
B*
Transitionduct
TransitionDuctwithBranches
Dualtrunk duct
Crossover
I
_r-..3
1.CrossoverDuctmust becentereddirectlyunder furnace.
2. Use12"DiameterRoundor insulatedFlex-ductonly.
3. TerminateFlex-duct(oppositefurnace) in the centerof the trunkduct.
4. Flex_uct matedalmust bepulledtight-- No Loopsor unnecessarydips-- Air Flowmay beimpeded.
FIGURE 2 : Air Distribution Systems
4 Unitary Products Group
Return Air Grille Part No.
7900-287P/A * White
250 SQ. IN
MINIMUM
FREE AREA B
250 SQ. IN.
50 SQ LN FREE AREA
_ MINIMUM
FREE AREA
MINIMUM
FIGURE 3 : Closet To Door Clearance - 6" or Greater
250 SQ, IN
MINIMUM
t FREE AREA B
250 SQ. IN
MINIMUM
50 SQ IN.
MINIMUM
FREE AREA
FREE AREA
035-16328-002Rev.C(0902)
Furnace to Closet Door Clearance --
5 Inches or more
The closet door MUST have a minimum o1250 Square Inches
of free area inthe upper half of the door.
If opening for return airis 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 maintainedfrom the
Pont of furnace.
J_ i5_°_r _ac/_"t Return Air Closet Door Part No.
DOOR 7900-7771/C * White
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 ofthe door.
The lower closetdoor grille may be omitted if an undercut of
2-1/2 inches isprovided inthe 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.
As an optionto _e lower grill,
an undercut of 2-1/2" will provide
50 Square Inches of free area.
FIGURE 4 : Furnace To Closet Door Clearance - 1" To 6"
Furnace to Closet Door Clearance --
Less than 1 Inch
The closet door MUST have three return air gdlles. The
MINIMUM
FREE AREA
_i_ 250 SQ. IN
MINIMUM
50 SQ. IN.
FREE AREA
FIGURE 5 : Furnace To Closet Door Clearance - Less Than 1"
Unitary Products Group 5
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.
035-16328-002Rev. C (0902)
ROOF JACK
AWARNING
Failure to follow aft venting instructions can result
in fire, asphyxiation, or explosion.
[AkCAUTION
Only use the appropriate roof jack. See Figures 6
& 7 for correct application.
Do not exceed the maximum height as deter-
mined from Figures 6 & 7. Installer should allow
an additional 1-1/2" travel before the flue pipe
assembly is fully extended against the built-in
stop. This provides an additional safeguard
against the flue assembly being pulled from the
roof jack during transportation or other stress
conditions.
EXISTING FURNACE REPLACEMENT
Ifthis furnace replaces an existing furnace, do the following:
f. If a 2nd roof, roof cop or addition has been made to the
existing roof of the home, remove the old roof jack com-
pletely! To avoid the possibility of an impropedy installed
pipe or gaps in the old roof jack, INSTALL A NEW ROOF
JACK. Your ceiling and roof height will determine the cor-
rect roof jack to use. Refer to the vent selection table, of
the furnace installation instructions.
2. After unpacking the roof jack, check the rain caps. Insure
they are not damaged, tilted or crooked. Do not twist,
crush or sit on the roof cape during installation. Damaged
roof cape will cause improper furnace operation. The fur-
nace will not heat properly and could result in explosion.
3. Before inserting the roof jack into the furnace top,
inspect the furnace flue and combustion air opening for
debris or insulation which might have fallen in during pre-
installation steps. Do not proceed unless all debris has
been cleaned out or removed.
4. After installing roof jack on furnace top collar, check to
make sure there is no gap in back or side between the
pipe collar and the furnace casing top.
5.
Use only the pipes provided with the roof jack assembly.
Do not add to or adapt other sheet metal pipes. Do not
cut, insert or add other pipes to this assembly.
6.
In no case should there be a gap between sections of
the flue pipe or the combustion air pipe. If necessary to
prevent excessive air leakage, the installer should seal
joints in the combustion air tube with aluminum type or
other suitable sealant.
NEW HOME INSTALLATION
Ifthis furnace is installedon a new home do the following:
1. Inspect the furnace top collars for signs of insulation or
ceiling debris which might have fallen in during cutting of
the ceiling and roof holes. Remove all debris before con-
tinuing.
2. After unpacking the roof jack, check the rain caps. Insure
they are not damaged, tilted or crooked. Do not twist,
crush or sit on the roof caps during installation. Damaged
roof cops will cause improper furnace operation. The fur-
nace willnot heat properly and could result inexplosion.
3. Before inserting the vent pipe into the furnace top,
inspect the furnace flue and combustion air opening for
debris or insulationwhich have fallen in during pre-instal-
lation steps. Do not proceed unless all debris have been
cleaned out or removed.
4.
After installing roof jack on furnace top collar, check to
make sure there is no gap in back or side between the
pipe collar end the furnace casing top. If necessary to
prevent excessive air leakage, the installer should seal
joints in the combustion air tube with aluminum type or
other suitable sealant.
INSTALLATION IN SNOW REGIONS
When the combustion air pipe inlet is covered or blocked with
snow, the furnace will not operate properly due to the
depleted combustion air supply.
Therefore, if the furnace will be located in regions where
snowaccumulation on the roof exceeds 7" or in H.U.D. Snow
Load Zones, a roof jack extension (Part No. 7680B6541) is
recommended.
LOCATING AND CUTTING ROOF JACK OPENING
To facilitate the proper installation of the roof jack, it is very
important that the roof jack opening in the ceiling and roof be
on the same vertical center line as the furnace flue collar. See
Figure 9.
Mark this location on ceiling and scribe a circle with a 5"
radius (10" diameter) around this mark. Cut opening for roof
jack through ceiling and roof. (If furnace was installed during
construction, cover furnace and flue opening to prevent
debris from entering flue when hole is cut for roof jack.)
INSTALLING ROOF JACK IN ROOF
(See Figure 6 & 7 for Dimensional requirements.)
Insert reef jack into opening inthe roof.
The roof jack should be secured to the furnace before roof
flange (flashing) is secured to the roof. This will insure a bet-
ter alignment of the flue pipe and furnace flue collar. Caulk
around and under roof flange to provide a water tight seal,
before secoring roof jack flashing to roof.
6 Unitary Products Group
035-16328-002Rev. C (0902)
SWIVEL FLASHING
ADJUSTS FROM
0/12 TO 5/12 PITCH
4000-7101/C 4000-6101/A
4000-7121/C 4000-61211A
4900-7141/C 4000-6141/A
4900-7151/C 4000-6151/A
4900-7171/C 4009-6171/A
The 4084-7141 sd mens onally the same as 4000-7141/C and is avallab e on y In Canada.
2 ......
The 4084-7151 is dimensionally the same as 4000-7151/C and is available only in Canada.
FLUE
19 1/2"
GASES
CAULK
SLANT
FLASHING
3/12 PITCH
CAREFULLY CAULK ALL AROUND SWIVEL JOINT WITI-I • F_E S
SEALANT SUPPLIED By FURNACE MANUFACTURER, 1_ _ t
f _ _ _ I _- t COMBUSTION 19 1/2
DGAH FURNACES
INSTALLATION DIMENSIONS
"A"
ADJUSTABLE HEIGHT
7O"_ 79"
75" _ 86"
83"to 104"
90"_ 116"
127" _ 15T'
T.oEndo,U00e,Po.,ono,.oo,Jao,need ,oF
/. Not extend below the ceiling. _ __ _
DGPH, DGPA,& DGAAFURNACES
INSTALLATION DIMENSIONS
"B"
ADJUSTABLE HEIGHT
86" to 95"
91"to 102"
99"to 129"
106"to 132"
143" _ 173"
A B
59-1/2"
DGAH MODELS
, r -,iv ..... FLOOR _ 1 F
WARM AIR DUCT DUCT CONNECTOR DUCT CONNECTOR WARM AIR DUCT
FIGURE 6 : Standard Roof Jack
AND ROOF.
THIS ISTHE INSTALLER S RESPONSIBILITY = L_ __ __
76"
DGPH, DGPA,
DGAA, MODELS
/
Unitary Products Group 7
035-16328-002Rev.C(0902)
I
SWIVEL FLASHING
ADJUSTS FROM
0/12 TO 5/12 PITCH
SLANT
FLASHING
3/12 PITCH
4000-8161/C I 4000-9161/A
4000-8181/C 4000-9181/A
AND ROOE
DGAH FURNACES
INSTALLATION DIMENSIONS
=A =
ADJUSTABLE HEIGHT
85" to 101"
99" to 129"
IMPORTANT
DGPH, DGPA, & DGAA FURNACES
INSTALLATION DIMENSIONS
"B"
ADJUSTABLE HEIGHT
101" to _17"
115" to 145"
CAULK
UNDER
FLASHING
ROOF
A
59-1/2"
DGAH MODELS
WARM AIR DUCT DUCT CONNECTOR
FIGURE 7 : Roof Jack With Removable Crowns
FLOOR
DGPH, DGPA,
DGAA, MODELS
DUCT CONNECTOR
B
76 II
WARM AIR DUCT
8 Unitary Products Group
DUCT CONNECTORS
I .. - =
, , T. _
035-16328-002 Rev. C (0902)
I
DUCT CONNECTOR DIMENSIONS
DUCT CONNECTOR
PART NUMBER
7990-6011
7990-6021
7990-6041
7990-6061
7990-6071
7990-6081
7990_I01
7990-6121 I
FIGURE 8 : Duct Connector Dimensions
REARWALL
OFENCLOSURE CEILINGCUT-OUT
DUCT CONNECTOR
DEPTH
1"
2"
4-I/2"
6-1-2"
7-1/2"
8-1/2"
10-1/4"
12-!/4"
DUCT CONNECTOR DIMENSIONS
DUCT CONNECTOR
PART NUMBER
7990-6211
7990-6221
7990-6241
7990-6261
7990-6271
7990-6281
7990-6301
7990-6321
FLOORCUT-OUT
CONNECTOR
DUCTCONNECTOR FLOOR
L_ T
ouuuc
OPTIONAL GAS
SUPPLY DUCT
DUCT CONNECTOR
DEPTH
4-1/2"
6-1-2"
7-1/2"
8-1/2"
10-1/4"
I2-1/4"
s FLOOR
DEPTH JOIST
1"
2"
J
/
i ENTRANCE
-_ OFFURNACE
FUTUREREFRIGERANT
LINEENTRANCE
FIGURE 9 : Recommended Floor Cut-out
Unitary Products Group 9
20_ _ FLOOR
FIGURE 10 : Duct Connector Depth
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