40
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*
30040A
115---60---1
127
104
7.0
9.7
14
38
(11.7)
15
36040B
115---60---1
127
104
7.2
9.8
14
37
(11.5)
15
36060A
115---60---1
127
104
7.1
9.7
14
38
(11.7)
15
42060B
115---60---1
127
104
10.9
14.6
14
25
(7.7)
15
48080B
115---60---1
127
104
10.0
13.4
14
27
(8.4)
15
60080C
115---60---1
127
104
14.7/11.2
19.3/14.0
1
12/14
1
29/24
1
(8.8/7.3
1
)
20/15
1
60100C
115---60---1
127
104
14.8/11.3
19.4/15.0
1
12/14
1
29/24
1
(8.8/7.3
1
)
20/15
1
66120D
115---60---1
127
104
12.6
16.7
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.
1
Low Amp Kit (KGAPC0101ECM) allows select furnaces to be installed with a 15 Amp Breaker and 14 AWG wire within the listed wire length. Affected data
shown as Default Value/Value with Lower Amp Kit.
24 V
Coil
To Humidifier Leads
To Com/24V Screw Terminal
on Thermostat Strip
To HUM Terminal On
Furnace Control Board
To Humidifier Leads
A11157
Fig. 37 -- Field--supplied Isolation Relay for Humidifiers with Internal Power Supply
W/W1
W2
COM
Y/Y2
R
G
A11401
Fig. 38 -- Typical Two--Stage Field Wiring Diagram
