916SA: Product Data
Manufacturer reserves the right to change, at any time, specifications and designs without notice and without obligations.
10
TYPICAL WIRING SCHEMATIC
A190079
FURNACE CONTROL BOARD
A210192
MAXIMUM ALLOWABLE EXPOSED VENT LENGTH
Maximum Allowable Exposed Vent Lengths in Unconditioned Space Insulation Table - Ft.
115-V FIELD-
SUPPLIED
DISCONNECT
AUXILIARY
J-BOX
24-V
TERMINAL
BLOCK
THREE-WIRE
HEATING-ONLY
FIVE WIRE
NOTE 1
NOTE 2
FIELD-SUPPLIED
DISCONNECT
CONDENSING
UNIT
TWO
WIRE
FURNACE
C
O
N
T
R
O
L
R
G
COM
W
C
R
G
Y
GND
GND
FIELD 24-V WIRING
FIELD 115-, 208/230-, 460-V WIRING
FACTORY 24-V WIRING
FACTORY 115-V WIRING
208/230- OR
460-V
THREE
PHASE
208/230-V
SINGLE
PHASE
BLOWER DOOR SWITCH
WHT
BLK
WHT
BLK
NOTES:
Connect Y-terminal in furnace as shown for proper blower operation.
Some thermostats require a "C" terminal connection as shown.
If any of the original wire, as supplied, must be replaced, use
same type or equivalent wire.
W
Y
GND
THERMOSTAT
TERMINALS
1.
2.
3.
Winter
Design
Temp
°F
Unit
Size
26,000* BTUH
Uninsulated
3/8-in. Insulation 1/2-in. Insulation
Pipe
Dia. in.
1 ½
2
1 ½
2
1 ½
2
20
20
20
50
45
60
50
0
5
5
25
20
30
25
-20
15
10
20
15
-40
10
5
15
10
Winter
Design
Temp °F
Unit Size
40,000* BTUH
60,000 BTUH
Uninsulated
3/8-in.
Insulation
1/2-in.
Insulation
Uninsulated
3/8-in. Insulation
1/2-in. Insulation
Pipe Dia.
in.
1 ½
2
2 ½ 1 ½
2
2 ½ 1 ½
2
2 ½
1 ½
2
2 ½ 3
1 ½
2
2 ½
3
1 ½
2
2 ½ 3
20
20
20
20
20
50
45
20
60
50 20
30
30
25
20
75
65
60
20
85
75
65
0
10
5
5
20
25
20
20
30
25 15
15
10
10
20
40
30
25
20
45
40
30
-20
5
20
15
10
20
20
15 10
5
20
25
20
15
20
30
25
20
-40
15
10
5
15
15
10 5
20
15
15
10
20
20
15
10
Winter
Design
Temp °F
Unit Size
80,000 BTUH
Uninsulated
3/8-in. Insulation
1/2-in. Insulation
Pipe Dia. in. 1 ½
2
2 ½
3
4
1 ½
2
2 ½
3
4
1 ½
2
2 ½
3
4
20
15
40
40
35
30
15
50
90
75
65
15
50
70
70
70
0
15
20
15
10
5
15
50
45
35
30
15
50
50
40
35
-20
15
10
5
15
35
30
20
15
15
40
30
25
15
-40
10
5
15
25
20
15
5
15
30
25
20
10
Winter
Design
Temp °F
Unit Size
100,000 BTUH
120,000 BTUH
Uninsulated
3/8-in. Insulation
1/2-in. Insulation
Uninsulated
3/8-in. Insulation 1/2-in. Insulation
Pipe Dia.
in.
2 2 ½ 3
4
2 2 ½ 3
4
2 2 ½ 3
4
2 ½
3
4
2 ½
3
4
2 ½
3
4
20
20 50 40 35 20 80 95 80 20 80 105 90 10
50
40
10
75
95
10
75
105
0
20 20 15 10 20 55 45 35 20 65 55 45 10
20
15
10
55
45
10
65
50
-20
15 10
5
20 35 30 20 20 45 35 25 10
10
10
35
25
10
45
30
-40
10
5
20 25 20 10 20 30 25 15 10
5
10
25
15
10
30
20
