166753-UIM-C-0706
Unitary Products Group
9
SECTION V: ELECTRICAL POWER
SECTION V: ELECTRICAL POWER
SECTION V: ELECTRICAL POWER
SECTION V: ELECTRICAL POWER
Electrical Power Connections
Field wiring to the unit must be grounded. Electric wires that are field
installed shall conform to the temperature limitation for 63°F (35°C) rise
wire when installed in accordance with instructions. Refer to Table 7 in
these instructions for specific furnace electrical data.
Annual Fuel Utilization Efficiency (AFUE) numbers are determined in accordance with DOE Test procedures.
Wire size and over current protection must comply with the National Electrical Code (NFPA-70-latest edition) and all local codes.
The furnace shall be installed so that the electrical components are protected from water.
TABLE 6:
Nominal Manifold Pressure - High Fire
Single/Second Stage Manifold Pressures (in wc)
Single/Second Stage Manifold Pressures (kpa)
Altitude (feet)
Altitude (m)
0-7999
8000-8999
9000-9999
0-2437
2438-2742
2743-3048
G
a
s
H
e
a
ti
n
g
V
a
lu
e
(B
T
U
/c
u
f
t.
)
800
3.5
3.5
3.5
G
a
s
H
e
a
ti
n
g
V
a
lu
e
(M
J
/c
u
m
)
29.8
0.87
0.87
0.87
850
3.5
3.5
3.5
31.7
0.87
0.87
0.87
900
3.5
3.5
3.5
33.5
0.87
0.87
0.87
950
3.5
3.5
3.3
35.4
0.87
0.87
0.81
1000
3.5
3.2
2.9
37.3
0.87
0.80
0.73
1050
3.5
2.9
2.7
39.1
0.87
0.73
0.67
1100
3.2
2.7
2.4
41.0
0.80
0.66
0.61
2500 (LP)
9.8
8.2
7.5
93.2 (LP)
2.44
2.03
1.86
PROPANE AND HIGH ALTITUDE CONVERSION KITS
It is very important to choose the correct kit and/or gas orifices for the altitude and the type of gas for which the furnace is being installed.
Only use natural gas in furnaces designed for natural gas. Only use propane (LP) gas for furnaces that have been properly converted to use pro-
pane (LP) gas. Do not use this furnace with butane gas.
Incorrect gas orifices or a furnace that has been improperly converted will create an extremely dangerous condition resulting in premature heat
exchanger failure, excessive sooting, high levels of carbon monoxide, personal injury, property damage, a fire hazard and/or death.
High altitude and propane (LP) conversions are required in order for the appliance to satisfactory meet the application.
An authorized distributor or dealer must make all gas conversions.
In Canada, a certified conversion station or other qualified agency, using factory specified and/or approved parts, must perform the conversion.
The installer must take every precaution to insure that the furnace has been converted to the proper gas orifice size when the furnace is installed.
Do not attempt to drill out any orifices to obtain the proper orifice size. Drilling out a gas orifice will cause misalignment of the burner flames,
causing premature heat exchanger burnout, high levels of carbon monoxide, excessive sooting, a fire hazard, personal injury, property damage
and/or death.
Use copper conductors only.
TABLE 7:
Ratings & Physical / Electrical Data - Upflow Models
Input
Output
Nominal
Airflow
Cabinet Width
Total Unit
Amps
AFUE
Air Temp. Rise
MBH
kW
MBH
kW
CFM
cmm
In.
cm
°F
°C
40
11.7
32
9.4
1200
34.0
14-1/2
36.8
9.0
80.0
25-55
13-31
60
17.6
48
14.1
1200
34.0
14-1/2
36.8
9.0
80.0
25-55
13-31
80
23.5
64
18.8
1200
34.0
14-1/2
36.8
9.0
80.0
35-65
19-36
80
23.5
64
18.8
1600
45.3
17 1/2
44.5
12.0
80.0
25-55
13-31
80
23.5
64
18.8
1600
45.3
21
53.3
12.0
80.0
25-55
13-31
80
23.5
64
18.8
2000
2200
56.6
62.3
21
53.3
14.0
80.0
25-55
13-31
100
29.3
80
23.4
1200
34.0
17 1/2
44.5
12.0
80.0
40-70
22-39
100
29.3
80
23.4
1600
45.3
17 1/2
44.5
12.0
80.0
35-65
19-36
100
29.3
80
23.4
1600
45.3
21
53.3
12.0
80.0
35-65
19-36
100
29.3
80
23.4
2000
56.6
21
53.3
14.0
80.0
25-55
13-31
115
33.7
92
26.9
1600
45.3
21
53.3
12.0
80.0
35-65
19-36
115
33.7
92
26.9
2000
56.6
21
53.3
14.0
80.0
30-60
17-33
130
38.1
104
30.5
2000
56.6
24-1/2
62.2
14.0
80.0
35-65
19-36
Input
Max. Outlet
Air Temp
Blower
Blower
Size
Max
Over-Current
Protect
Min. wire Size
(awg) @ 75 ft
one way
Operation
WGT.
Operation
WGT.
MBH
kW
°F
°C
Hp
Amps
In.
cm
LBS
Kg
40
11.7
155
68.3
1/2
7.1
10 x 8
25.4 x 17.7
20
14
105
47.6
60
17.6
155
68.3
1/2
7.1
10 x 8
25.4 x 17.7
20
14
110
49.9
80
23.5
170
76.7
1/2
7.1
10 x 8
25.4 x 17.7
20
14
117
53.1
80
23.5
155
68.3
3/4
11.5
11 x 8
27.9 x 20.3
20
14
126
57.2
80
23.5
155
68.3
3/4
11.5
10 x 10
25.4 x 25.4
20
14
130
59.0
80
23.5
165
73.9
1.0
14.0
11 x 11
27.9 x 25.4
20
12
140
63.5
100
29.3
170
76.7
1/2
7.1
10 x 8
25.4 x 20.3
20
14
128
58.1
100
29.3
165
73.9
3/4
11.5
11 x 8
25.4 x 25.4
20
14
134
60.8
100
29.3
165
73.9
3/4
11.5
10 x 10
25.4 x 25.4
20
14
140
63.5
100
29.3
155
68.3
1.0
14.0
11 x 11
27.9 x 25.4
20
12
145
65.8
115
33.7
170
76.7
3/4
11.5
10 x 10
25.4 x 25.4
20
14
145
65.8
115
33.7
170
76.7
1.0
14.0
11 x 11
27.9 x 25.4
20
12
147
66.7
130
38.1
165
73.9
1.0
14.0
11 x 11
27.9 x 25.4
20
12
158
71.7
