GMEC96 Installation Manual

12
Installation of this furnace at altitudes above 7000 ft (2134 m)
shall be made in accordance with the Listed High Altitude
Conversion Kit available with this furnace.
L'installation de ce générateur de chaleur à des altitudes
supérieures à 7000 pi (2134 m) doit être effectuée
conformément aux instructions accompagnant la trousse de
conversion pour haute altitude fournie avec cet appareil.
For installations above 7000 feet, please refer to the furnace

Contact the distributor for a tabular listing of appropriate
manufacturer’s kits for propane gas and/or high altitude
installations. The indicated kits must be used to insure
safe and proper furnace operation. All conversions must

HIGH STAGE LOW STAGE
#45 (1)
#50 (2)
LPM-08* (1) 1.25MM (1)
LPM-30* (2) #57 (2)
*supports both Honeywell and White-Rodgers 2-stage valves
(1) FOR USE WITH ALL MODELS EXCEPT *MEC960303AN and *MEC960302BN
(2) FOR USE WITH ONLY *MEC960302BN MODEL
NATURAL
0 - 7000
NONE
3.5" w.c.
1.9" w.c.
NONE
PROPANE
10.0" w.c.
6.0" w.c.
NONE
GAS
ALTITUDE
KIT
ORIFICE
MANIFOLD PRESSURE
PRESSURE SWITCH
CHANGE
Vent/Flue Pipe & Combustion Air Pipe
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
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
This manual will refer to the pipe that discharges products

pipe. The pipe that supplies air for combustion to the
furnace will be referred to as the “intake” pipe or “com-
bustion air” pipe.

extracting almost all of the heat from the products of combus-
tion and cooling them to the point where condensation takes

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.

®
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
      
and terminating. Do not mix materials or components of
one manufacturer with materials or components of another
manufacturer.
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.

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 available “no hub connectors” other
than those shipped with this product.
It is the responsibility of the installer to follow the man-
ufacturers’ recommendations and to verify that all vent/

products. Additionally, it is the responsibility of the installer
to ensure that all piping and connections possess adequate
-
ration, shifting, or sagging during furnace operation.

-
rect vent (single pipe) or direct vent (dual pipe) appliance. A
non-direct vent
while a direct vent
pipe and a combustion air intake pipe. Refer to the ap-
propriate section for details concerning piping size, length,
number of elbows, furnace connections, and terminations.

T
O
AVOID
BODILY
INJURY
,
FIRE
OR
EXPLOSION
,
SOLVENT
CEMENTS
MUST
BE
KEPT
AWAY
FROM
ALL
IGNITION
SOURCES
(
I
.
E
.,
SPARKS
,
OPEN
FLAMES
,
AND
EXCESSIVE
HEAT
)
AS
THEY
ARE
COMBUSTIBLE
LIQUIDS
.
A
VOID
BREATHING
CEMENT
VAPORS
OR
CONTACT
WITH
SKIN
AND
/
OR
EYES
.
WARNING
Two-three-inch nominal diameter PVC Schedule 40 pipe
meeting ASTM D1785, PVC primer meeting ASTM F656, and
     

ASTM D2665 and ASTM D3311. Carefully follow the man-
ufacturer’s instructions for cutting, cleaning, and solvent
cementing of PVC.
         
ASTM F891-1 or ABS cellular core (Foam Core) plastic pipe
