12
115 Volt Line Connections
Before proceeding with electrical connections, ensure that
the supply voltage, frequency, and phase correspond to that
specified on the unit rating plate. Power supply to the furnace
must be NEC Class 1, and must comply with all applicable
codes. The furnace must be electrically grounded in accor-
dance with local codes or, in their absence, with the latest
edition of The National Electric Code, ANSI NFPA 70 and/or
The Canadian Electric Code CSA C22.1.
Use a separate fused branch electrical circuit containing prop
-
erly sized wire, and fuse or circuit breaker. The fuse or circuit
breaker must be sized in accordance with the maximum over-
current protection specified on the unit rating plate. An electri
-
cal disconnect must be provided at the furnace location.
Line voltage wiring
must enter into the junction box provided
with the furnace.
NOTE: Line polarity must be observed when making
field connections.
Fossil Fuel Applications
This furnace can be used in conjunction with a heat pump
in a fossil fuel application. A fossil fuel application refers to
a combined gas furnace and heat pump installation which
uses an outdoor temperature sensor to determine the most
cost efficient means of heating heat pump or gas furnace.
A heat pump thermostat with
two stages of heat
is required to
properly use a furnace in conjunction with a heat pump. Re-
fer to the fossil fuel kit installation instructions for additional
thermostat requirements.
Strictly follow the wiring guidelines in the fossil fuel kit in-
stallation instructions. All furnace connections must be made
to the furnace integrated control module and the FURNACE
terminal strip on the fossil fuel control board.
Junction Box Relocation
WARNING
Edges of sheet metal holes may be sharp. Use gloves as a
precaution when removing hole plugs.
Line voltage connections can be made through either the
right or left side panel. The furnace is shipped configured for
a right side electrical connection. To make electrical connec-
tions through the opposite side of the furnace, the junction
box must be relocated to the left side prior to making elec-
trical connections. To relocate the junction box, perform the
following steps.
Masonry Chimney Termination
A masonry chimney used as a vent for gas fired equipment
must extend at least three feet above the highest point where
it passes through the roof. It must extend at least two feet
higher than any portion of a building within a horizontal dis-
tance of 10 feet. In addition, the chimney must terminate at
least 3 feet above any forced air inlet located within 10 feet.
The chimney must extend at least five feet above the highest
connected equipment draft hood outlet or flue collar.
If the chimney does not meet these termination require-
ments, but all other requirements in the checklist can be met,
it may be possible for a mason to extend the chimney. If this
will not be practical, see Fix 1.
ELECTRICAL CONNECTIONS
WARNING
HIGH VOLTAGE!
To avoid the risk of electrical shock, wiring to
the unit must be polarized and grounded.
WARNING
HIGH VOLTAGE!
To avoid personal injury or death due to
electrical shock, disconnect electrical power
before servicing or changing any electrical
wiring.
CAUTION
Label all wires prior to disconnection when servicing
controls. Wiring errors can cause improper and dangerous
operation. Verify proper operation after servicing.
WARNING
HIGH VOLTAGE!
To avoid the risk of injury, electrical shock
or death, the furnace must be electrically
grounded in accordance with local codes or
in their absence, with the latest edition of the
National Electrical Code.
Wiring Harness
The wiring harness is an integral part of this furnace. Field
alteration to comply with electrical codes should not be re-
quired. Wires are color coded for identification purposes.
Refer to the wiring diagram for wire routings. If any of the
original wire as supplied with the furnace must be replaced,
it must be replaced with wiring material having a temperature
rating of at least 105°C. Any replacement wiring must be a
copper conductor.
