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Field Supplied Disconnect
Within Sight of Furnace
Field Supplied
Panel Connector
Field Supplied
Fused Service
Panel
Black (Hot)
White (Neutral)
Green or Bare
(Ground)
Black
White
Black
White
Black
White
Field Line Voltage
Wiring
Factory Line
Voltage Wiring
Ground
Ground
Ground
Junction Box (may be internal
or external to the furnace). These
connections can be made in the
field supplied disconnect at the
furnace.
Figure 26. Line Voltage Field Wiring
Canadian LP/Propane Gas Sea Level and High
Altitude Conversion Kit - P/N 904091A
This kit is for LP/propane conversions in Canada
at altitudes between zero and 4500 ft. above sea
level. Follow the installation instructions supplied
with the kit for proper installation.
!
CAUTION:
To avoid electric shock, personal
injury, or death, turn off the power at
the disconnect or the main service
panel before making any electrical
connections.
ELECTRICAL WIRING
Electrical connections must be made in ac-
cordance with all applicable local codes and
ordinances, and with the current revision of the
National Electric Code (ANSI/NFPA 70).
For Canadian installations electrical connections
and grounding must be done in accordance
with the current Canadian Electrical Code (CSA
C22.1 Part 1) and/or local codes. If any of the
original wire as supplied with the furnace must be
replaced, it must be replaced with wire having a
minimum temperature rating of 105°C. Refer to
the furnace nameplate and Table 12 for electrical
requirements.
Line Voltage Wiring
The line voltage (115 volt) to the furnace must
be supplied from a dedicated branch circuit
containing the correct fuse or circuit breaker for
the furnace. See Table 12. An electrical switch
should be readily accessible from and within
sight of the furnace. (See the Wiring Diagram
label in the furnace and Figure 26.)
The furnace cabinet must have an uninterrupted,
unbroken ground to minimize injury should an
electrical fault condition occur. The controls used
in this furnace require an earth ground to operate
properly. Acceptable methods for grounding are
electrical wire or conduit approved for electrical
ground service. Do not use gas piping as an
electrical ground.
NOTE: Proper line voltage polarity must be
maintained in order for the control system
to operate correctly. Verify that the incoming
neutral line is connected to the white wire and
the incoming “hot” line is connected to the
black wire in the junction box. These furnaces
will not operate unless polarity and ground
are properly connected. See Figure 23.
!
CAUTION:
Label all wires prior to disconnection
when servicing controls. Wiring errors
can cause improper and dangerous
operation. Verify proper operation
after servicing.
Low Voltage Wiring
Install the thermostat per the manufacturer’s
instructions. The low voltage (24 volt) connections
from the thermostat are made at the terminal strip
on the control board in the furnace. See Figure
24 for the proper connections for heating only
(two-wire) and heating/cooling (four-wire) appli-
cations. The recommended minimum wire gauge
for thermostat wiring is shown in Table 12.
The thermostat must not be installed on an
outside wall or any other location where its opera-
tion may be adversely affected. Adverse affects
include radiant loading from fi replaces, sunlight,
or lighting fi xtures, and convective loading from
warm air registers or electrical appliances.