271001-UIM-A-0407
10
Unitary Products Group
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 of 63°F (35°C) rise
when installed in accordance with these instructions. Refer to Table 8 in
these instructions for specific furnace electrical data.
1. Annual Fuel Utilization Efficiency (AFUE) numbers are determined in accordance with DOE Test procedures.
2. Field wiring and over-current protection (Max Fuse Size) must conform to and be grounded in accordance ANSI/NFPA
No. 70-latest edition or the Canadian Electrical Code C222.1 Part 1-latest edition and / or local codes.
3. Wire size based on copper conductors, 60º C, 3% voltage drop. "Unit Amps" refers to the full load current.
4. Min wire size (awg) @ 75 ft. one way refers to the minimum recommended field installed wire size.
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 8:
Ratings & Physical / Electrical Data
Input
High/Low
Output BTU/H
High/Low
Nominal
Airflow
Cabinet Width
AFUE
Blower
Blower Size
MBH
kW
MBH
kW
CFM
m
3
/min
In
cm
Hp
Amps
In
cm
57/42
16.7/12.3
46/34
13.5/10.0
1200
34.0
14-1/2
36.8
80.0
1/2
7.7
10 x 8
25.4 x 20.3
80/59
23.4/17.3
64/48
18.8/14.1
1200
34.0
14 1/2
36.8
80.0
1/2
7.7
10 x 8
25.4 x 20.3
80/59
23.4/17.3
64/48
18.8/14.1
1600
45.3
17-1/2
44.5
80.0
3/4
9.6
10 x 10
25.4 x 25.4
80/59
23.4/17.3
64/48
18.8/14.1
1600
45.3
21
53.3
80.0
3/4
9.6
10 x 10
25.4 x 25.4
100/65
29.3/19.1
80/53
23.4/15.5
1600
45.3
17 1/2
44.5
80.0
3/4
9.6
10 x 10
25.4 x 25.4
100/65
29.3/19.1
80/53
23.4/15.5
1600
45.3
21
53.3
80.0
3/4
9.6
10 x 10
25.4 x 25.4
100/65
29.3/19.1
80/53
23.4/15.5
2000
56.6
21
53.3
80.0
1
12.8
11 x 10
27.9 x 25.4
120/78
35.1/22.9
96/64
28.1/18.8
2000
56.6
21
53.3
80.0
1
12.8
11 x 10
27.9 x 25.4
Input/Cabinet
High/Low
Max. Outlet Air
Temp
Low Fire
Air Temp. Rise
High Fire
Air Temp. Rise
Unit
Amps
Max
Over-Current
Protect
Min. wire Size
(awg) @ 75 ft
one way
Operation
Weight
MBH
kW
°F
°C
°F
°C
°F
°C
Lbs
Kg
57/42
16.7/12.3
165
73.9
25-55
14-31
35-65
19-36
9.0
20
14
107
48.5
80/52
23.4/17.3
170
76.7
30-60
17-33
40-70
22-39
9.0
20
14
117
43.7
80/59
23.4/17.3
155
68.3
25-55
14-31
25-55
14-31
12.0
20
14
129
58.5
80/59
23.4/17.3
155
68.3
25-55
14-31
25-55
14-31
12.0
20
14
140
63.5
100/65
29.3/19.1
170
76.7
25-55
14-31
40-70
22-39
12.0
20
14
128
47.8
100/65
29.3/19.1
170
76.7
25-55
14-31
40-70
22-39
12.0
20
14
140
63.5
100/65
29.3/19.1
170
76.7
25-55
14-31
40-70
22-39
14.0
20
12
145
54.1
120/78
35.1/22.9
165
73.9
25-55
14-31
35-65
19-36
14.0
20
12
147
54.9
