10
Location
BOTTOM
TOP
LEFT SIDE FRONT RIGHT SIDE
GAS
CONNECTION
ELECTRICAL CONNECTION
LINE VOLTAGE
ELECTRICAL CONNECTION
LOW VOLTAGE
OPTIONAL
GAS CONNECTION
OPTIONAL LOW
VOLTAGE WIRING
OPTIONAL LINE VOLTAGE
WIRING
A
I
R
F
L
O
W
RETURN
AIR
SUPPLY
AIR
HOT
ST-A1220-04
MODEL A B C D E F RIGHT SIDE BACK TOP FRONT VENT
5 14 13 27/32 10 5/8 ① 11 1/2 1 7/8 0 4 ② 0 1 3 6 ③ 85 lbs.
7 17 1/2 16 11/32 12 3/8 ① 15 2 1/2 0 3 ② 0 1 3 6 ③ 105 lbs.
10 21 19 27/32 14 1/8 ① 18 1/2 2 1/2 0 0 0 1 3 6 ③ 120 lbs.
12 24 1/2 23 11/32 15 7/8 ① 22 2 1/2 0 0 0 1 3 6 ③ 140 lbs.
15 24 1/2 23 11/32 15 7/8 ① 22 2 1/2 0 0 0 1 3 6 ③ 150 lbs.
① MAY REQUIRE 3" TO 4" OR 3" TO 5" ADAPTER.
4" ADAPTER INCLUDED WITH (-)801P UNITS.
② MAY BE 0" WITH TYPE B VENT.
③ MAY BE 1" WITH TYPE B VENT.
FIGURE 4
UPFLOW/HORIZONTAL DIMENSIONS
REDUCED CLEARANCE (IN.)
Input A B C D E F
Left Right
Back Top Front Vent
Ship.
Side Side Wgts.
050 14 12
27
/32 10
5
/8 ¿ 11
1
/2 1
7
/8 0 4¿ 0 1 3 6¿ 85 lbs.
075 17
1
/2 16
11
/32 12
3
/8 ¿ 15 2
1
/2 0 3¿ 0 1 3 6¿ 105 lbs.
075 21 19
27
/32 14
1
/8 ¿ 18
1
/2 2
1
/2 0 0 0 1 3 6¿ 120 lbs.
100 21 19
27
/32 14
1
/8 ¿ 18
1
/2 2
1
/2 0 0 0 1 3 6¿ 120 lbs.
125 24
1
/2 23
11
/32 15
7
/8 ¿ 22 2
1
/2 0 0 0 1 3 6¿ 140 lbs.
150 24
1
/2 23
11
/32 15
7
/8 ¿ 22 2
1
/2 0 0 0 1 3 6¿ 150 lbs.
CLEARANCE TO COMBUSTIBLE MATERIAL (INCHES)
UPFLOW/HORIZONTAL MODELS
¿ May require 3” to 4” or 3” to 5” adapter.
4” adapter optional.
¿ May be 0” with type B vent.
¿ May be 1” with type B vent.
*See furnace speck sheet for availability.
ST-A1220-04