Installation Guide
12
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 distance 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.
E
LECTRICAL
C
ONNECTIONS
HIGH VOLTAGE !
T
O
AVOID
THE
RISK
OF
ELECTRICAL
SHOCK
,
WIRING
TO
THE
UNIT
MUST
BE
POLARIZED
AND
GROUNDED
.
WARNING
HIGH VOLTAGE !
T
O
AVOID
PERSONAL
INJURY
OR
DEATH
DUE
TO
ELECTRICAL
SHOCK
,
DISCONNECT
ELECTRICAL
POWER
BEFORE
SERVICING
OR
CHANGING
ANY
ELECTRICAL
WIRING
.
WARNING
L
ABEL
ALL
WIRES
PRIOR
TO
DISCONNECTION
WHEN
SERVICING
CONTROLS
. W
IRING
ERRORS
CAN
CAUSE
IMPROPER
AND
DANGEROUS
OPERATION
. V
ERIFY
PROPER
OPERATION
AFTER
SERVICING
.
CAUTION
HIGH VOLTAGE !
T
O
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
N
ATIONAL
E
LECTRIC
C
ODE
.
WARNING
WIRING H ARNESS
The wiring harness is an integral part of this furnace. Field
alteration to comply with electrical codes should not be required.
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.
115 VOLT L INE 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 accordance 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 properly
sized wire, and fuse or circuit breaker. The fuse or circuit breaker
must be sized in accordance with the maximum overcurrent
protection specified on the unit rating plate. An electrical
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. Refer to
the fossil fuel kit installation instructions for additional
thermostat requirements.
Strictly follow the wiring guidelines in the fossil fuel kit installation
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 B OX R ELOCATION
E
DGES
OF
SHEET
METAL
HOLES
MAY
BE
SHARP
. U
SE
GLOVES
AS
A
PRECAUTION
WHEN
REMOVING
HOLE
PLUGS
.
WARNING
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 connections through the
opposite side of the furnace, the junction box must be relocated to
the left side prior to making electrical connections. To relocate
the junction box, perform the following steps.
T
O
PREVENT
PERSONAL
INJURY
OR
DEATH
DUE
TO
ELECTRIC
SHOCK
,
DISCONNECT
ELECTRICAL
POWER
BEFORE
INSTALLING
OR
SERVICING
THIS
UNIT
.
WARNING
1. Remove both doors from the furnace.
2. Remove and save the screws holding the junction box to
the right side of the furnace.
3. Models that have the junction box located in the burner
compartment will need to move the junction box directly
over.
4. Attach the junction box to the left side of the furnace, using
the screws removed in step 2.
5. Check the location of the wiring. Confirm that it will not be
damaged by heat from the burners or by the rotation of the
fan. Also confirm that wiring location will not interfere
with filter removal or other maintenance.