9
L
EVELING
Leveling ensures proper condensate drainage from the heat
exchanger. For proper flue pipe drainage, the furnace must
be level lengthwise from end to end. The furnace should
have a slight tilt from back to front with the access doors
downhill from the back panel approximately 1/2 to 3/4
inches. The slight tilt allows the heat exchanger condensate,
generated in the recuperator coil, to flow forward to the
recuperator coil front cover.
A
LTERNATE
E
LECTRICAL
AND
G
AS
L
INE
C
ONNECTIONS
This furnace has provisions allowing for electrical and gas
line connections through either side panel. In horizontal ap-
plications the connections can be made either through the
“top” or “bottom” of the furnace.
D
RAIN
P
AN
A drain pan must be provided if the furnace is installed above
a conditioned area. The drain pan must cover the entire area
under the furnace (and air conditioning coil if applicable).
F
REEZE
P
ROTECTION
Refer to
Horizontal Applications and Conditions - Drain Trap and
Lines.
V
ENT
/F
LUE
P
IPE
& C
OMBUSTION
A
IR
P
IPE
This manual will refer to the pipe that discharges products
to the outdoors as the “vent” pipe or “flue” pipe. The pipe
that supplies air for combustion to the furnace will be
referred to as the “intake” pipe or “combustion air” pipe. A
condensing gas furnace achieves its high level of efficiency by
extracting almost all of the heat from the products of combus-
tion and cooling them to the point where condensation takes
place. Because of the relatively low flue gas temperature and
water condensation requirements, PVC or ABS are typically used
as venting and intake pipe materials In Canada ABS is not an
approved vent pipe material, but it is permissible to use as
combustion air pipe material.
In addition to PVC and ABS pipe and fittings, Innoflue
®
by
Centrotherm Eco Systems and PolyPro
®
by M&G Duravent are
also approved vent and combustion air materials for instal-
lations in the U.S.A. and Canada. Manufacturers Installation
instructions for these products must be followed. These prod-
ucts have specific instructions for installing, joining and ter-
minating. Do not mix materials or components of one manu-
facturer with materials or components of another manufac-
turer.
All furnaces are manufactured with 2" vent / intake pipe and
connectors. For furnaces requiring installation of 3" pipe,
the transition from 2" to 3" should be done as close to the
furnace as practically possible.
This furnace must not be connected to Type B, BW, or L vent or
vent connector, and must not be vented into any portion of a
factory built or masonry chimney except when used as a pathway
for PVC as described later in this section. Never common vent
this appliance with another appliance or use a vent which is
used by a solid fuel appliance. Do not use commercially avail-
able “no hub connectors” other than those shipped with this
product.
It is the responsibility of the installer to follow the manufac-
turers’ recommendations and to verify that all vent/flue pip-
ing and connectors are compatible with furnace flue products.
Additionally, it is the responsibility of the installer to ensure
that all piping and connections possess adequate structural
integrity and support to prevent flue pipe separation, shift-
ing, or sagging during furnace operation.
WARNING
P
OSSIBLE
PROPERTY
DAMAGE
,
PERSONAL
INJURY
OR
DEATH
MAY
OCCUR
IF
THE
CORRECT
CONVERSION
KITS
ARE
NOT
INSTALLED
. T
HE
APPROPRIATE
KITS
MUST
BE
APPLIED
TO
ENSURE
SAFE
AND
PROPER
FURNACE
OPERATION
. A
LL
CONVERSIONS
MUST
BE
PERFORMED
BY
A
QUALIFIED
INSTALLER
OR
SERVICE
AGENCY
.
Manifold
Pressure
High
Stage
Natural 0-4500'
None
3.0" WC
None
Pressure
Switch
Change
Gas
Altitude
Kit
U
PON
COMPLETION
OF
THE
FURNACE
INSTALLATION
,
CAREFULLY
INSPECT
THE
ENTIRE
FLUE
SYSTEM
BOTH
INSIDE
AND
OUTSIDE
OF
THE
FURNACE
TO
ASSURE
IT
IS
PROPERLY
SEALED
. L
EAKS
IN
THE
FLUE
SYSTEM
CAN
RESULT
IN
SERIOUS
PERSONAL
INJURY
OR
DEATH
DUE
TO
EXPOSURE
TO
FLUE
PRODUCTS
,
INCLUDING
CARBON
MONOXIDE
.
WARNING
F
AILURE
TO
FOLLOW
THESE
INSTRUCTIONS
CAN
RESULT
IN
BODILY
INJURY
OR
DEATH
. C
AREFULLY
READ
AND
FOLLOW
ALL
INSTRUCTIONS
GIVEN
IN
THIS
SECTION
.
WARNING
D
UAL
C
ERTIFICATION
: N
ON
-D
IRECT
/D
IRECT
V
ENT
This furnace is dual certified and may be installed as a non-
direct vent (single pipe) or direct vent (dual pipe) appliance.
A
non-direct vent
installation requires only a vent/flue pipe,
while a
direct vent
installation requires both a vent/flue pipe
and a combustion air intake pipe. Refer to the appropriate
section for details concerning piping size, length, number of
elbows, furnace connections, and terminations.
