035-14527-000 REV A (599)
Form 650.77-N3U
8
Unitary Products Group
All dimensions are in inches and are approximate.
FIGURE 2 : 2-STAGE DOWNFLOW FURNACE DIMENSIONS
TABLE 4: 2-STAGE RATINGS & PHYSICAL/ELECTRICAL DATA
M ODELS
P
*
DD
&
G
8
D
--DN
CABI NET
WIDT H
(
I N
.)
A FUE
1
LO W
FI RE
TEMP
R ISE
°
F
HI GH
FI RE
TEMP
R ISE
°
F
MAX
.
OUT LET
AI R
T EMP
°
F
B LOWER
TO TAL
UNI T
AMPS
MAX
.
OVER
-
CUR REN T
PRO TECT
2
MIN
WI RE
SIZE
(
AWG
)
@ 75
F T
.
O NE
WA Y
2
O PER
WGT
.
(
L BS
)
INPUT
MBH
H
/
L
OU TPU T
MBH
H
/
L
NO M
.
CFM
HP
SI ZE
(
IN
)
57/42
46/34
800
“A” 14-1/2”
80
20 - 50
30 - 60
160
1/4
10 x 6
9.0
20
14
110
80/59
64/48
1200
“A” 14-1/2”
80
25 - 55
30 - 60
160
1/2
10 x 8
12.0
20
14
120
80/59
64/48
1600
“B” 17-1/2”
80
20 - 50
25 - 55
160
3/4
11 x 10
12.0
20
14
130
100/65
80/52
1200
“B” 17-1/2”
80
25 - 55
40 - 70
170
1/2
10 x 8
12.0
20
14
125
120/78
96/64
2000
“C” 21”
80
25 - 55
30 - 60
160
1
11 x 10
12.0
20
14
150
1.
AFUE numbers are determined in accordance with DOE test procedures.
2.
Wire size and overcurrent protection must comply with the National Electrical Code (NFPA-70-latest edition).
•
For altitudes above 2,000 ft., reduce capacity 4% for each 1,000 ft. above sea level. Refer to Form 650.74-N1.1V.
•
Wire size based on copper conductors, 60° C, 3% voltage drop.
•
Continuous return air temperature must not be below 55° F.
* Input / Output / CFM / Cabinet
Models P*DD &
G8D—DN
A
B
C
D
E
F
57 / 46 / 800 / “A”
14-1/2
13-1/4
12-1/4
3
10-1/8
4-3/16
80 / 64 / 1200 / “A”
14-1/2
13-1/4
12-1/4
4
10-1/8
3-3/4
80 / 64 / 1600 / “B”
17-1/2
16-1/4
15-1/4
4
11-5/8
3-3/4
100 / 80 / 1200 / “B”
17-1/2
16-1/4
15-1/4
4
11-5/8
3-3/4
120 / 80 / 2000 / “C”
21
19-3/4
18-3/4
4
13-3/8
3-3/4
