Vent Installation; Attaching Your Furnace - COZY C255H Manual Del Propietário

FIGURE 8 – ALTERNATIVE VENTING
IF VENT EXTENDS OVER 5 FEET
ABOVE ROOF, GUY OR BRACE.
SEAL AROUND COLLAR
SUPPORT IF
NECESSARY
MAINTAIN
LISTED
CLEARANCE
MAXIMUM VERTICAL RISE
TYPE B ROUND OR OVAL
MINIMUM
HEIGHT
12 FEET

VENT INSTALLATION

The vent installation must comply with all local codes and ordinances.
If in doubt, consult your local codes or inspector.
The furnace vent must be directed to the outdoors so that harmful
combustion gases will not collect inside the building.
This furnace must not be connected to a chimney flue
serving a separate solid-fuel burning appliance.
This product is design certified to ANSI Z21.86. It must be installed
with a U.L. tested and listed type B approved vent and type
B/W approved vent Figure 8 Older style terracotta, transite
pipe, clay, concrete or masonry type vent pipe cannot be used
with this appliance. These types of vent pipe will not heat fast
enough to establish a draft, which will result in improper venting
of combustion products. Consequently, this could cause the vent
safety control system to shut down the furnace.
INSTALLING YOUR FURNACE
AND FLASHING
SUPPORT LATERALS
INSULATION SHIELD,
IF ATTIC IS INSULATED
MULTISTORY
UPPER FLOORS
ATTACH
HEADER
SHEET
PLATE
METAL
SLEEVE
CEILING
SPACER
HEATER HEADER
PLATE
SINGLE STORY
OR FIRST FLOOR
OF MULTISTORY
The area above header within the stud space MUST be kept clear
of any attic insulation to allow the free circulation of air around the
oval vent piping. In some areas the building code requires the use
of an attic shield.
The B/W vent must extend through the ceiling and roof terminating
at least 12-feet above the finished floor on
which the furnace rests.
MAINTAIN LISTED
INSTALL FURNACE VENT
CLEARANCE
Attach a 4-foot length of oval, double-wall vent pipe through the
LOCK JOINTS
plate spacers to the hold-down plate. Push the vent pipe into the
hold-down plate until it is completely seated. The hold-down cleat
will engage the groove in the vent pipe.
COMPLETE THE VENTING
Type B/W gas vent shall extend from the header plate of the
furnace to a point above the highest ceiling plate within the stud
space through which the vent passes, without any offsets or
crossovers. The first vent pipe offset, (if required), may not be any
FIRE STOP
closer than 2-feet from the header and needs to extend past the
SPACE
ceiling plate. After a type B/W gas vent passes through the highest
ceiling plate within a stud space above the furnace to which it
serves, the vent system may be completed with a Type B gas vent,
from the SAME manufacturer (do not mix brands of pipe). Offsets
cannot be greater than 45 degrees from vertical. Refer to The
Uniform Mechanical Code.
Install the oval-to-round adapter. Complete the piping extending it
through the roof. Use a 4-inch round, double-
wall (Type B) vent pipe, roof flashing, storm collar and vent
cap as shown. The vent cap must be at least 2-feet higher
than any point that is within 10- feet of the vent cap. There
must be at least a 1-inch clearance between the vent pipe
and any combustible material.
CAUTION: To avoid damage to wiring, be sure to route the
SEAL AND
wires away from the path of the furnace vent.
BASE PLATE

ATTACHING YOUR FURNACE

Clear the wall recess of all debris, remove any wood or plaster.
Stand the furnace in front of recess, holding the furnace body at
an angle. Insert flue collar into the opening in the header plate and
raise furnace carefully Figure 9. Swing bottom of furnace into wall
recess with front edges of legs flush with 2x4 floor plate. In the holes
provided, nail through the legs into studs or floor plate. Figure 10
Do not damage gasket glued to underside of header plate when
placing furnace in wall. Avoid nailing the legs so tightly that it disturbs
the inner furnace casing. Do not try to force the furnace into a
smaller-than-specified recess.
If an existing gas line is preventing the installation of a Cozy furnace,
a cut-out may be made using tin snips on one of the legs to clear this
existing gas line. This cut-out will be on one side of the unit on the
rear side of the leg and only if necessary.
COZY TOP VENT GRAVITY GAS WALL HEATER
15