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COMBUSTION
-AIR PIPE
VENT PIPE
Step 8 - - Electrical Connections
WARNING
!
ELECTRICAL SHOCK HAZARD
Failure to follow this warning could result in personal injury
or death.
Blower access door switch opens 115-v power to furnace
control. No component operation can occur. Do not bypass or
close switch with panel removed.
CAUTION
!
UNIT MAY NOT OPERATE
Failure to follow this caution may result in intermittent
unit operation.
Furnace control must be grounded for proper operation or
control will lock out. Control is grounded through
green/yellow wire routed to gas valve C-terminal and burner
box screw.
COMBUSTION-AIR PIPE GROMMET
GAS LINE
GAS LINE GROMMET
VENT PIPE GROMMET
NOTE: PIPE GROMMETS AND ENTRY HOLE FILLER
PLUGS ARE INCLUDED IN FACTORY-SUPPLIED
LOOSE PARTS BAG
Typical Gas Pipe Arrangement
Fig. 30 - -
UNUSED 1-3/4 -IN.
DIAMETER GAS
CONN. HOLE
GAS LINE ENTRY
HOLE FILLER PLUG
A05057
See Fig. 31, 32, and 50- -57 for field wiring diagram showing
typical field 115-v and 24-v wiring. Check all factory and field
electrical connections for tightness.
Field-supplied wiring shall conform with the limitations of 63°
rise.
115-V WIRING
Before proceeding with electrical connections, make certain that
voltage, frequency, and phase correspond to that specified on the
furnace rating plate. Also, check to be sure that service provided
by power supply is sufficient to handle load imposed by this
equipment. Refer to rating plate or Table 6 for equipment
electrical specifications.
The furnace must be electrically grounded in accordance with
local codes; or in the absence of local codes, with the National
Electric Code ANSI/NFPA 70 and/or the Canadian Electric Code,
CSA C22.1, Part I, if an external electrical source is utilized.
28
A05057
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