Specifications are subject to change without notice.
441 01 3700 00
21
ELECTRICAL SHOCK HAZARD
Failure to follow this warning could result in personal
injury or death.
Blower access panel door switch opens 115--v power to
control. No component operation can occur. Do not
bypass or close switch with panel removed.
!
WARNING
See Fig. 25 for field wiring diagram showing typical field 115--v
wiring. Check all factory and field electrical connections for
tightness.
Field--supplied wiring shall conform with the limitations of 63
_
F
(33
_
C) rise.
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 NEC NFPA 70 or local codes to
minimize personal injury if an electrical fault should occur.
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
!
Table 6 – Electrical Data
FURNACE SIZE
VOLTS -
HERTZ -
PHASE
OPERATING VOLTAGE
RANGE *
UNIT
AMPACITY#
MAX WIRE
LENGTH
FT (M)‡
MAX. FUSE
OR CKT. BKR
AMPS †
MIN. WIRE
GAUGE
Max.
Min.
0451716A
115-60-1
127
104
10.7
34 (10.6)
15
14
0701716A
115-60-1
127
104
14.3
25 (7.9)
15
14
0702120A
115-60-1
127
104
17.3
33 (10.1)
20
12
0902120A
115-60-1
127
104
14.6
25 (7.7)
15
14
0902420A
115-60-1
127
104
14.6
25 (7.7)
15
14
1102422A
115-60-1
127
104
18.1
31 (9.7)
20
12
* 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 1 way along wire path between furnace and service panel for maximum 2 percent voltage drop.
115--V Wiring
Verify that the voltage, frequency, and phase correspond to that
specified on unit rating plate. Also, check to be sure that service
provide
d by utility is sufficient to
handle load imposed by this
equipment. Refer to rating plate or Table 6 for equipment
electrical specifications.
U.S. Installations
: Make all electrical connections in accordance
with National Electrical Code (NEC) NFPA 70 and any local
codes or ordinances that might apply.
FIRE HAZARD
Failure to follow this warning could result in personal
injury, death, or property damage.
Do not connect aluminum wire between disconnect
switch and furnace. Use only copper wire.
!
WARNING
Use a separate, fused branch electrical circuit with a properly
sized fuse or circuit breaker for this furnace. See Table 6 for wire
size and fuse specifications. A readily accessible means of
electrical disconnect must be located within sight of the furnace.
NOTE
: Proper polarity must be maintained for 115--v wiring. If
polarity is incorrect, control LED status indicator light will flash
rapidly and furnace will NOT operate.
