J-Box Relocation - Carrier A Series Installation, Start-Up, Operating And Service And Maintenance Instructions

PG80VTLA: Installation, Start-up, Operating and Service and Maintenance Instructions
FURNACE SIZE
36045A
36070A
48070B
48090B
60090C
66110C
66135D
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.
**.
CAUTION
!
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.
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. (See Fig.
ELECTRIC
DISCONNECT
SWITCH
Fig. 25 – Field-Supplied External
Electrical Box on Furnace Casing
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 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.
Use a separate, fused branch electrical circuit with a properly sized fuse
or circuit breaker for this furnace. See
Manufacturer reserves the right to change, at any time, specifications and designs without notice and without obligations.
Table 6 – Electrical Data
OPERATING VOLTAGE
VOLTS -
*
HERTZ - RANGE
PHASE
Max.
115-60-1 127
115-60-1 127
115-60-1 127
115-60-1 127
115-60-1 127
115-60-1 127
115-60-1 127
25).
COPPER
WIRE ONLY
ALUMINUM
WIRE
Table 6 for wire size and fuse
UNIT
MAX. UNIT
AMPS
AMPACITY
Min.
104 7.7 10.4
104 8.0 10.8
104 10.5 13.9
104 8.6 11.3
104 11.5 15.0
104 13.1 16.9
104 13.9 17.9
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.

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. (See
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.
(See Fig. 26).
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 the two screws removed in Step 1.
5. Route J-Box wires within furnace away from sharp edges, rotating
parts and hot surfaces.
A190279
21
MAX WIRE MAX. FUSE
LENGTH OR CKT. BKR
†
‡
FT (M) AMPS
35 (10.9) 15
34 (10.4) 15
26 (8.1) 15
32 (10) 15
24 (7.5) 15
34 (10.4) 20
32 (9.8) 20
Factory Factory
Installed Installed
Alternate Alternate
Location Location
Fig. 26 – Relocating J-Box
MIN. WIRE
GAUGE
**
14
14
14
14
14
12
12
Fig. 26).
A10291