Electrical Connections - International comfort products F8MXN Installation Instructions Manual

VOLTS-
FURNACE
HERTZ-
MODEL
PHASE
0451408A 115-60-1
0701716A 115-60-1
0902116A 115-60-1
1102120A 115-60-1
1352420A 115-60-1
* 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 unit and service panel for maximum 2 percent voltage drop.

ELECTRICAL CONNECTIONS

WARNING
!
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.
See Figure 26 for field wiring diagram showing typical field
115−v wiring. Check all
connections for tightness.
Field−supplied wiring shall conform with the limitations of
63_F (35_C) rise.
WARNING
!
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 ANSI/NFPA
70−2011 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
manufacturer's ratings for proper wire gauge. Do not
use gas piping as an electrical ground.
CAUTION
!
FURNACE MAY NOT OPERATE
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.
441 01 1411 04
Table 7 – Electrical Data
OPERATING
VOLTAGE*
MAX UNIT
(VOLTS)
(AMPS)
MAX MIN
127 104
127 104
127 104
127 104
127 104
factory and field electrical
to the power cord
Specifications are subject to change without notice.
UNIT
AMPACITY#
(AMPS)
8.1 10.9
10.8 14.2
11.4 14.8
14.2 18.2
14.2 18.2
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 provided by utility is sufficient to handle load imposed
by this equipment. Refer to rating plate or Table 7 for
equipment electrical specifications.
Make all electrical connections in accordance with National
Electrical Code (NEC) ANSI/NFPA 70−2011 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.
Use a separate, fused branch electrical circuit with a properly
sized fuse or circuit breaker for this furnace. See Table 7 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 a status code 10 and furnace will NOT operate.
J−BOX RELOCATION
NOTE: If factory location of J−Box is acceptable, go to next
section (ELECTRICAL CONNECTION TO J−BOX).
NOTE: On 14−in. (356 mm) wide casing models, the J−Box
shall not be relocated to other side of furnace casing when
the vent pipe is routed within the casing.
1. Remove and save two screws holding J−Box.
NOTE: The J−Box cover need not be removed from the
J−Box in order to move the J−Box. Do NOT remove green
ground screw inside J−Box.
2. Cut wire tie on loop in furnace wires attached to J−box.
3. Move J−Box to desired location.
4. Fasten J−Box to casing with two screws removed in
Step 1.
5. Route J−Box wires within furnace away from sharp
edges, rotating parts and hot surfaces.
MAX WIRE MAX FUSE/
} {
LENGTH CKT BKR
FT. (M) (AMPS)
34 (10) 15
26 (8) 15
25 (7) 15
31 (9) 20
31 (9) 20
WARNING
MIN WIRE
GAGE
14
14
14
12
12
19