3
SPECIFICATIONS
The furnace should be sized to provide 100 percent of the design
heating load requirement plus any margin that occurs because of
furnace model size capacity increments. None of the furnace
model sizes can be used if the heating load is 20,000 BTU or
lower. Use Air Conditioning Contractors of America (Manual J
and S); American Society of Heating, Refrigerating, and
Air-Conditioning Engineers; or other approved engineering
method to calculate heating load estimates and select the furnace.
Excessive oversizing of the furnace may cause the furnace and/or
vent to fail prematurely, customer discomfort and/or vent freezing.
Failure to follow these guidelines is considered faulty installation
and/or misapplication of the furnace; and resulting failure, damage,
or repairs may impact warranty coverage.
Heating Capacity and Efficiency
30040
36040
36060
48060
48080
60080
48100
60100
60120
Input
High
Heat
(BTUH)
40,000
40,000
60,000
60,000
80,000
80,000
100,000 100,000 120,000
Output
High
Heat
(BTUH)
37,000
37,000
56,000
56,000
75,000
75,000
93,000
93,000
112,000
Certified Temperature
Rise Range ºF (ºC)
High Heat
40 - 70
(22 - 39)
35 - 65
(19 - 36)
40 - 70
(22 - 39)
35 - 65
(19 - 36)
35 - 65
(19 - 36)
35 - 65
(19 - 36)
40 - 70
(22 - 39)
40 - 70
(22 - 39)
45 - 75
(25 - 42)
Airflow Capacity and Blower Data
30040
36040
36060
48060
48080
60080
48100
60100
60120
Rated External Static
Pressure (in. W.C.)
Heating
0.10
0.10
0.12
0.12
0.15
0.15
0.20
0.20
0.20
Cooling
0.5
0.5
0.5
0.5
0.5
0.5
0.5
0.5
0.5
Airflow Delivery
@ Rated ESP (CFM)
High Heat
910
980
910
980
1030
1115
1480
1550
2070
Cooling
970
1140
1155
1505
1555
1885
1490
1970
2050
Cooling Capacity (tons)
400 CFM/ton
2.5
2.5
2.5
3.5
4
4.5
3.5
5
5
350 CFM/ton
2.5
3
3
4
4.5
5.0
4.0
5.5
5.5
Direct-Drive Motor Type
Permanent Split Capacitor (PSC)
Direct-Drive Motor HP
0.3
0.5
0.3
0.5
0.5
0.75
0.5
0.75
0.75
Motor Full Load Amps
4.6
6.8
4.6
7.9
7.4
7.9
6.5
11.1
11.1
RPM Range
500 - 1150
Speed Selections
4
5
4
4
5
5
4
4
4
Blower Wheel Dia x Width
in.
11 x 7
11 x 8
11 x 7
11 x 8
11 x 8
11 x 10
11 x 10
11 x 10
11 x 11
Air Filtration System
Field Supplied
Filter Used for Certified Watt Data*
KGAWF**06UFR
Electrical Data
30040
36040
36060
48060
48080
60080
48100
60100
60120
Input Voltage
Volts-Hertz-Phase
115-60-1
Operating Voltage Range
Min-Max
104-127
Maximum Input Amps
Amps
5.2
7.4
5.3
8.6
8.1
8.6
7.3
11.9
11.9
Unit Ampacity
Amps
7.5
10.3
7.6
11.7
11.1
11.7
10.1
15.8
15.8
Minimum Wire Size
AWG
14
14
14
14
14
14
14
12
12
Maximum Wire Length
@ Minimum Wire Size
Feet
49
36
48
31
33
31
36
36
36
(M)
(14.9)
(11.0)
(14.6)
(9.4)
(10.1)
(9.4)
(11.0)
(11.0)
(11.0)
Maximum Fuse/Ckt Bkr
(Time-Delay Type Recommen-
ded)
Amps
15
15
15
15
15
15
15
20
20
Transformer Capacity (24vac output)
40 VA
External Control Power
Available
Heating
27.9 VA
Cooling
34.6 VA
Controls
30040
36040
36060
48060
48080
60080
48100
60100
60120
Gas Connection Size
1/2" - NPT
Burners (Monoport)
2
2
3
3
4
4
5
5
6
Gas Valve (Redundant)
Manufacturer
White Rodgers
Minimum Inlet Gas pressure (in. W.C.)
4.5
Maximum Inlet Gas pressure (in. W.C.)
13.6
Ignition Device
Silicon Nitride
Limit Control
195
180
220
190
185
195
220
220
165
Heating Blower Control (Heating Off-Delay)
Adjustable: 90, 120, 150, 180 seconds
Cooling Blower Control (Time Delay Relay)
90 seconds
Communication System
none
Thermostat Connections
Com 24V, R, W, G, Y
Accessory Connections
EAC (115vac); HUM (24vac)
* See Accessory List for part numbers available.
912SC
