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Pipe and Fittings - ASTM-D1785,
D2466, D2665, D2231, D2661 and
F628.
PVC Primer and Solvent Cement -
ASTM-D2564
ABS Pipe and Fittings - Use ABS
Primer and Solvent Cement D2235
Procedure for Cementing Joints -
ASTM-D2855
IMPORTANT:
The plastic combustion
air and venting components are of
PVC. If using ABS piping, ensure that
the solvent cement is compatible for
joining PVC to ABS components or
use a mechanical connection that can
withstand the vent temperatures and
are corrosion resistant.
CEMENTING JOINTS
Properly seal all joints in the PVC vent
using the following materials and
procedures.
PVC CLEANER-PRIMER AND
PVC MEDIUM-BODY SOLVENT
CEMENT
IMPORTANT:
After cutting pipe,
remove all ragged edges and burrs.
This is important to prevent reduction
in pressure drop throughout the
system.
1. Cut pipe end square. Chamfer
edge of pipe. Clean fitting socket
and pipe joint area of all dirt,
grease and moisture.
2. After checking pipe and socket
for proper fit, wipe socket and
pipe with cleaner-primer. Apply
a liberal coat of primer to inside
surface of socket and outside of
pipe. Read instructions included
with the primer for proper
application.
3. Apply a thin coat of cement
evenly in the socket. Quickly
apply a heavy coat of cement to
the pipe end and insert pipe into
fitting with a slight twisting
movement until it bottoms out.
NOTE:
Cement must be fluid; if
not, recoat.
4. Hold the pipe in the fitting for 30
seconds to prevent the tapered
socket from pushing the pipe out
of the fitting.
5. Wipe all excess cement from the
joint with a rag. Allow 15 minutes
before handling. Cure time varies
according to fit, temperature and
humidity.
NOTE:
Stir the solvent cement
frequently while using. Use a natural
bristle brush or the dauber supplied
with the can. The proper brush size is
one inch.
IMPORTANT:
For Proper Installation
DO NOT use solvent cement that
has become curdled, lumpy or
thickened.
DO NOT thin. Observe shelf
precautions printed on containers.
For application below 32°F, use only
low-temperature-type solvent
cement.
OVERTEMPERATURE
SAFETY SWITCHES
Furnaces are equipped with safety
switches in the control compartment to
protect against overtemperature
conditions caused by inadequate
combustion air supply. The switches for
the upflow and downflow models are
located in the burner compartment. If a
switch is tripped it must be manually
reset.
DO NOT JUMPER THESE DEVICES!
IF ONE OF THESE SWITCHES
SHOULD TRIP, A QUALIFIED
INSTALLER, SERVICE AGENCY OR
THE GAS SUPPLIER MUST BE
CALLED TO CHECK AND/OR
CORRECT FOR ADEQUATE
COMBUSTION AIR SUPPLY. DO NOT
RESET THE SWITCHES WITHOUT
TAKING CORRECTIVE ACTION TO
ASSURE THAT AN ADEQUATE
SUPPLY OF COMBUSTION AIR IS
MAINTAINED UNDER ALL
CONDITIONS OF OPERATION.
FAILURE TO DO SO CAN RESULT IN
CARBON MONOXIDE POISONING
OR DEATH. IF THIS UNIT IS
MOUNTED IN A CLOSET, THE DOOR
MUST BE CLOSED WHEN MAKING
THIS CHECK.
REPLACE THESE SWITCHES ONLY
WITH THE IDENTICAL
REPLACEMENT PART.
EXISTING VENT SYSTEMS
When the installation of this furnace
replaces an existing furnace that is
removed from a vent system serving
other appliances, the vent system is
likely to be too large to properly vent the
remaining attached appliances.
The following steps should be followed
with each appliance remaining
connected to the original common vent
system. Place the appliance to be tested
in operation, while the other appliances
remaining connected to the common
vent system are not in operation. Test
the operation of each appliance
individually by the following method.
1. Permanently seal any unused
openings in the common venting
system.
2. Visually inspect the venting system
for proper size and horizontal pitch
and determine that there is no
blockage, restriction, leakage,
corrosion or other deficiencies
which could cause an unsafe
condition.
3. If practical, close all building doors,
windows and all doors between the
space where the appliances
remaining connected to the
common venting system are
located.
Turn on clothes dryers and any
appliance not connected to the
common venting system. Turn on
any exhaust fans, such as range
hoods and bathroom exhausts, so
they will operate at maximum
speed. Do not operate a summer
exhaust fan. Close fireplace
dampers.
4. Follow the lighting instructions.
Place the appliance being
inspected into operation. Adjust the
thermostat so the appliance will
operate continuously.
5. Test for spillage at the draft hood
relief opening after 5 minutes of
main burner operation. Use the
flame of a match or candle, or
smoke from a cigarette, cigar
or pipe.
6. After it has been determined that
each appliance that remains
connected to the common venting
system properly vents (when tested
as outlined above), return doors,
windows, exhaust fans, fireplace
dampers and any other gas-burning
appliance to their previous
conditions of use.
7. If improper venting is observed
during any of the above tests, the
common venting system must be
resized. See vent tables in these
instructions
When the furnace is installed in the
same space with other gas appliances
such as a water heater, be sure there is
an adequate supply of combustion and
ventilation air for the other appliances.
Do not delete or reduce the combustion
air supply required by the other gas
appliances in this space. See Z223.1,
National Fuel Gas Code (NFPA54) for
determining the combustion air
requirements for gas appliances. An
unconfined space must have at least 50
cubic feet (volume) for each
1,000 BTUH of the total input of all
appliances in the space. If the open
space containing the appliances is in a
building with tight construction
(contemporary construction), outside air
may still be required for the appliances
to burn and vent properly. Outside air
openings should be sized the same as
for a confined space.
JOINING PIPE AND
FITTINGS
PVC SOLVENT CEMENTS AND
PRIMERS ARE HIGHLY FLAMMABLE.
PROVIDE ADEQUATE VENTILATION
AND DO NOT ASSEMBLE NEAR
HEAT SOURCE OR AN OPEN FLAME.
DO NOT SMOKE. AVOID SKIN OR
EYE CONTACT. OBSERVE ALL
CAUTIONS AND WARNINGS
PRINTED ON MATERIAL
CONTAINERS. FAILURE TO FOLLOW
THESE GUIDELINES MAY RESULT IN
FIRE, EXPLOSION OR
ASPHYXIATION CAUSING
PERSONAL INJURY OR DEATH.
All pipe, fittings, solvent cement, primers
and procedures must conform to
American National Standard Institute
and American Society for Testing and
Materials (ANSI/ASTM) standards in the
U.S.
!
WARNING
!
WARNING
