38
A190023
Fig. 37 -- Example of Single Stage Furnace Control
Table 11 – Electrical Data
FURNACE SIZE
VOLTS---
HERTZ---
PHASE
OPERATING VOLTAGE
RANGE*
MAXIMUM
UNIT
AMPS
UNIT
AMPACITY#
MINIMUM
WIRE
SIZE
AWG
MAXIMUM
WIRE
LENGTH
FT (M)
}
MAXIMUM
FUSE OR CKT
BKR
AMPS
{
Maximum* Minimum*
026E14---10
115---60---1
127
104
5.1
7.3
14
50 (15.5)
15
040E14---10
115---60---1
127
104
7
9.7
14
38 (11.7)
15
040E17---12
115---60---1
127
104
7.5
10.3
14
36 (10.9)
15
060E14---12
115---60---1
127
104
7.1
9.8
14
38 (11.5)
15
060E17---14
115---60---1
127
104
9.6
12.9
14
28 (8.7)
15
080E17---16
115---60---1
127
104
10
13.4
14
27 (8.4)
15
080E21---20
115---60---1
127
104
12.3
16.3
12
35 (10.7)
20
100E21---20
115---60---1
127
104
12.6
16.6
12
34 (10.5)
20
120E24---20
115---60---1
127
104
12.4
16.4
12
35 (10.7)
20
140E24---22
115---60---1
127
104
12.6
16.6
12
34 (10.5)
20
* Permissible limits of the voltage range at which the unit operates satisfactorily.
# Unit ampacity = 125 percent of largest operating component’s full load amps plus 100 percent of all other potential operating components’ (EAC, humidifier,
etc.) full load amps.
{
Time---delay type is recommended.
}
Length shown is as measured one way along wire path between furnace and service panel for maximum 2 percent voltage drop.
