Wiring Diagram; Electrical Connections; 115-V Wiring - Bryant 349HAV Series Installation, Start-Up, And Operating Instructions Manual

15. Secure gas valve wires to manifold assembly with wire tie.
16. Replace burner removal covers on respective sides of
furnace.
17. Remove front blower door and reinstall so instructional
labels are rightside up.
NOTE: On high airflow models (75,000 and 100,000 Btuh), the
front and rear blower doors must be interchanged so that the
instructional labels are rightside up on both sides of furnace. Move
blower door knob to new front blower door.
C. Wire Alternate Limit Switch
1. Disconnect wires from limit switch located on front center
panel and reconnect wires to alternate limit switch on right
front panel. (See right-hand view of Fig. 5.)
2. Replace control box cover.
WARNING: Limit switch wires MUST be moved to the
alternate limit switch when reversing the furnace to
ensure safe operation. Failure to follow this warning may
result in a hazardous operating condition.

ELECTRICAL CONNECTIONS

See Fig. 10 for a wiring diagram showing the proper field 115- and
24-v wiring connections. Check all electrical connections (both
factory and field) for tightness. In all instances, wiring to be done
and any replacement wire shall conform with the temperature
limitation for Type T wire (63°F/35°C rise).
I. 115-V WIRING
Before proceeding with electrical connections, make certain that
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 to Table 4 for equipment electrical specifications.
115-V
SINGLE
PHASE
GND
115-V
FIELD-SUPPLIED
DISCONNECT
NOTE 4
FIVE
W C
WIRE
THREE-WIRE
HEATING
ONLY
W
R
GND
G
C
Y
24-V
TERMINAL
BLOCK
NOTE : 1. Connect Y-terminal as shown for proper cooling operation.
2. If any of the original wire, as supplied, must be replaced,
use same type or equivalent wire.
3. Proper polarity must be maintained for 115-v wiring.
4. Some thermostats require a "C" terminal connection as shown.
→ Fig. 10—Heating and Cooling Application Wiring Diagram
CAUTION: Do not connect aluminum wire between the
disconnect switch and the furnace. Use only copper wire.
Make all electrical connections in accordance with the National
Electric Code ANSI/NFPA 70-1996 and any local codes or
ordinances that might apply.
For Canadian installations, all electrical connections must be made
in accordance with CSA C22.1 Canadian Electrical Code, or
authorities having jurisdiction.
When replacing any original wiring, use only 105°C, AWG No. 16
copper wire.
→
Use a separate, fused branch electrical circuit containing a properly
sized fuse or circuit breaker for this furnace. See Table 4 for wire
size and specifications. A disconnecting means must be located
within sight of and readily accessible to the furnace.
WARNING: The cabinet must have an uninterrupted or
unbroken ground according to National Electrical Code,
ANSI/NFPA 70-1996, Canadian Electrical Code, CSA
C22.1, or local codes to minimize personal injury if an
electrical fault should occur. This ground may consist of
electrical wire or conduit approved for electrical ground
when installed in accordance with existing electrical
codes. Do not use gas piping as an electrical ground.
Failure to follow this warning could result in an electrical
shock, fire, or death.
NOTE: Proper polarity must be maintained for 115-v wiring for
ignition control to function properly. Connect "hot" wire H and
"ground" wire G as shown in Fig. 11.
CAUTION: If manual disconnect switch is to be
mounted on the furnace, select a location where a drill or
fastener will not contact electrical or gas components.
FIELD 24-V WIRING
FIELD 115-, 208/230-, 460-V WIRING
FACTORY 24-V WIRING
FACTORY 115-, 208/230-, 460-V WIRING
THERMOSTAT
R G Y
TERMINALS
GND
GND
CONDENSING
UNIT
TWO
WIRE
—9—
FIELD-SUPPLIED
DISCONNECT
208/230- OR
460-V
THREE
PHASE
GND
208/230-V
SINGLE
PHASE
GND
A98302