J−Box Installation - International comfort products F9MVE Installation Instructions Manual

INSTALLATION INSTRUCTIONS
by this equipment. Refer to rating plate or Table 11 for
equipment electrical specifications.
U.S.A. Installations: Make all electrical connections in
accordance with the current edition of the National Electrical
Code (NEC) ANSI/NFPA 70 and any local codes or ordinances
that might apply.
Canadian Installations: Make all electrical connections in
accordance with the current edition of the Canadian Electrical
Code CSA C22.1 and any local codes or ordinances that might
apply.
WARNING
!
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.
Heating and Cooling Application Two−Stage Wiring Diagram with Single−Stage
Figure 35
Thermostat
BLOWER
DOOR
SWITCH
BLK BLK
WHT WHT
GND
115 VOLT FIELD JUNCTION
SUPPLIED BOX
FUSED
DISCONNECT
J−Box Installation
WARNING
!
FIRE OR ELECTRICAL SHOCK HAZARD
Failure to follow this warning could result in personal
injury, death, or property damage.
If field−supplied manual disconnect switch is to be
mounted on furnace casing side, select a location where
a drill or fastener cannot damage electrical or gas
components.
440 01 4400 03
NOTE 2
W
C
FIVE
WIRE
THREE WIRE
HEATING
ONLY
W2
C
O COM
N
W/W1
T
NOTE 1
R
Y/Y2
O
R
L
G
24 VOLT
TERMINAL NOTES: 1.
BLOCK
FURNACE
Specifications subject to change without notice.
SWITCH
Use a separate, fused branch electrical circuit with a properly
sized fuse or circuit breaker for this furnace. See Table 11 for
wire size and fuse specifications. A readily accessible means of
electrical disconnect must be located within sight of the
furnace.
FIELD 24 VOLT WIRING
FIELD 115 , 208/230 , 460 VOLT WIRING
FACTORY 24 VOLT WIRING
FACTORY 115 VOLT WIRING
1 STAGE
G
Y R THERMOSTAT
TERMINALS
CONDENSING
UNIT
Connect Y/Y2 terminal as shown for proper operation.
2. Some thermostats require a "C" terminal connection as shown.
3. If any of the original wire, as supplied, must be replaced, use
same type or equivalent wire.
The J-Box is used when field line voltage electrical connections
are made to the furnace wiring harness inside the furnace
casing. The J-Box is not required if a field-supplied electrical
box is attached to the outside of the furnace casing and the box
is grounded to the green ground wire of the main wiring
harness and the earth ground of the field electrical supply.
The J−Box cover, mounting bracket and screws are shipped in
the loose parts bag included with the furnace. The J−Box can
be mounted on the left or right side of the casing, as viewed
from the upflow position. (See Figure 36)
Gas Furnace: (F/G)9MVE
COPPER
WIRE ONLY
ALUMINUM
WIRE
A11146
FIELD SUPPLIED
FUSED DISCONNECT
208/230 OR
460 VOLT
THREE
PHASE
208/230
VOLT
SINGLE
PHASE
GND
A11401
31