28
A190079
Fig. 33 -- Typical Single--Stage Wiring Diagram
Table 11 – Electrical Data
FURNACE SIZE
VOLTS---
HERTZ---
PHASE
OPERATING VOLTAGE
RANGE*
MAXIMUM
UNIT
AMPS
UNIT
AMPACITY#
MINIMUM
WIRE
SIZE
AWG
MAXIMU
M
WIRE
LENGTH
FT (M)}
MAXIMUM
FUSE OR CKT
BKR AMPS
Maximum*
Minimum*
040E14--10
115---60---1
127
104
7.1
9.8
14
37 (11.5)
15
040E17--12
115---60---1
127
104
7.1
9.8
14
37 (11.5)
15
060E14--12
115---60---1
127
104
7.2
9.9
14
37 (11.4)
15
060E17--14
115---60---1
127
104
7.2
9.9
14
37 (11.4)
15
080E17--16
115---60---1
127
104
7.2
9.9
14
37 (11.4)
15
080E21--20
115---60---1
127
104
9.6
12.9
14
28 (8.7)
15
100E21--20
115---60---1
127
104
9.7
13.0
14
28 (8.7)
15
100E21--22
115---60---1
127
104
12.6
16.7
12
34 (10.5)
20
120E24--20
115---60---1
127
104
9.7
13.0
14
28 (8.7)
15
* 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.
ELECTRICAL SHOCK AND FIRE HAZARD
Failure to follow this warning could result in personal
injury, death, or property damage.
The cabinet MUST have an uninterrupted or unbroken
ground according to current of edition NEC NFPA 70 or
local codes to minimize personal injury if an electrical fault
should occur. In Canada, refer to Canadian Electrical Code
CSA C22.1. This may consist of electrical wire, conduit
approved for electrical ground or a listed, grounded power
cord (where permitted by local code) when installed in
accordance with existing electrical codes. Refer to the
power cord manufacturer’s ratings for proper wire gauge.
Do not use gas piping as an electrical ground.
!
WARNING
FURNACE MAY NOT OPERATE HAZARD
Failure to follow this caution may result in intermittent
furnace operation.
Furnace control must be grounded for proper operation or
else control will lock out. Control must remain grounded
through green/yellow wire routed to gas valve and manifold
bracket screw.
CAUTION
!
