Carrier 59SP6A Installation, Start-Up, Operating, Service And Maintenance Instructions page 30

59SP6A: Installation, Start-up, Operating, Service and Maintenance Instructions
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 current edition of NEC NFPA 70 or local codes to
minimize personal injury if an electrical fault should occur. In Canada,
refer to the current edition of Canadian Electrical Code CSA C22.1.
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
!
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. 34 – Field-Supplied External Electrical Box on Furnace Casing
115-V Wiring
Furnace must have a 115-v power supply properly connected and
grounded.
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.
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 11 for equipment electrical specifications.
USA Installations: Make all electrical connections in accordance with
the current edition of the National Electrical Code (NEC) NFPA 70 and
any local codes or ordinances that might apply.
Canada 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.
Use a separate, fused branch electrical circuit with a properly sized fuse
or circuit breaker for this furnace. See
specifications. A readily accessible means of electrical disconnect must
be located within sight of the furnace.
Manufacturer reserves the right to change, at any time, specifications and designs without notice and without obligations.
34.
COPPER
WIRE ONLY
ALUMINUM
WIRE
Table 11 for wire size and fuse
J-Box Installation
FIRE OR ELECTRICAL SHOCK HAZARD
Failure to follow this warning could result in personal injury, death, or
property damage.
High voltage field connections must be located in J-Box with furnace,
or in field supplied external disconnect mounted to furnace.
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.
The J-Box must be used when field line voltage electrical connections
are made to the furnace wiring harness inside the furnace casing. The
J-Box cover is not required if a field-supplied external electrical box is
attached to the outside of the furnace casing. The field ground wire and
furnace main ground wire are grounded when the J-Box bracket is
attached to the furnace and the field ground wire and factory ground wire
are secured to the bracket grounding screw. If the J-Box cover is not
used, the field and factory spliced connections must be located inside the
external electrical box. Do not leave splice connections unprotected
inside the furnace.
A190279
Fig. 35 – Installing J-Box (When Used)
30
WARNING
!
A12226