18-CD31D1-3 15
Installer’s Guide
The integrated furnace control is polarity sensitive. The
hot leg of the 115 VAC power must be connected to the
BLACK field lead.
To prevent injury or death due to electrical shock or con-
tact with moving parts, lock unit disconnect switch in the
open position before servicing the unit. Failure to follow
this warning could result in electrical shock, personal
injury, or death.
ELECTRICAL CONNECTIONS
The cabinet must have an uninterrupted or unbroken
ground according to National Electrical Code, ANSI/
NFPA 70 - “latest edition” and Canadian Electrical Code,
CSA C22.1 or local codes to minimize personal injury if an
electrical fault should occur. A failure to follow this warn-
ing could result in an electrical shock, fire, injury, or death.
Make wiring connections to the unit as indicated on en-
closed wiring diagram. As with all gas appliances using
electrical power, this furnace shall be connected into a
permanently live electric circuit. It is recommended that
it be provided with a separate “circuit protection device”
electric circuit. The furnace must be electrically grounded
in accordance with local codes or in the absence of local
codes with the National Electrical Code, ANSI/NFPA 70
“latest edition” or Canadian Electrical Code, CSA C22.1, if
an external electrical source is utilized.
All field supplied wiring must conform with the tem-
perature limitation for Type T wire [63° F (35° C)], when
installed in accordance with these instructions and wir-
ing diagrams supplied with the furnace. A disconnecting
means must be located within sight from, and readily acces-
sible to, the furnace.
Refer to the SERVICE FACTS literature for unit wiring
diagrams in addition to the diagram inside the blower door.
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