Goodman GRL SERIES, Руководство по установке

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to 2 inches before penetrating the
wall. Up to 18 inches of 2-in. pipe
may be used inside the wall.
The standard horizontal intake air
termination for all models is a 2-in.
PVC coupling with a wind deflector
vane (provided) attached. Cut a
2
1
/
4
-in. length of 2-in. PVC pipe.
Connect this pipe and another 2-in.
PVC coupling to the coupling at the
wall. The outer coupling must
terminate 4 inches from the wall.
IMPORTANT: To ensure proper
furnace operation, the supplied vane
must be installed in the vertical
position with PVC solvent as shown in
Figure 15, Detail B.
The combustion air inlet terminal
must be located with respect to the
exhaust terminal as shown in Figure
15, Detail C.
IMPORTANT: All furnaces with
horizontal air intakes, except those
using concentric vent kit RXGY-E03,
must have a drain tee assembly and
trap installed as close to the furnace
as possible. This is to drain any water
that may be in the combustion air
pipe to prevent it from entering the
furnace combustion chamber.
These parts are included in kits
RXGY-D02 (for 2-in. pipe) and
RXGY-D03 (for 3-in. pipe). Attach the
trap to the bottom of the tee with PVC
solvent. Connect the other end to a
suitable drain, as to the downstream
of a condensate trap on the furnace.
STANDARD VERTICAL
TERMINATIONS
EXHAUST VENT PIPING
Vertical through-the-roof vent
applications do not require an
exhaust terminal. The exhaust vent
must terminate at least 12 inches
above the combustion intake air
termination. The exhaust vent for
models with input of 90,000 is 2-in.
Refer to Table 2 for proper
application. This must be reduced to
1
1 /
2
“ the last 12 inches for models with
inputs of 45,000 and 60,000 BTUH.
See Figure 14.
STANDARD HORIZONTAL
TERMINATIONS
EXHAUST PIPING
For direct vent systems the standard
termination is 2-in. Install a 2-in.
coupling at the outside wall to prevent
the termination from being pushed
inward. When 3-in. pipe is used
between the furnace and outside wall,
reduce to 2 inches before penetrating
the wall. The standard termination is
1
1
/
2
-in. PVC pipe extending outward
12 inches from the wall for models
with inputs of 45,000 and 60,000
BTUH. Install a 2-in. to 1
1
/
2
-in.
coupling at the outside wall to prevent
pushing the termination back into the
wall. See Figure 15, Detail A.
The combustion air and exhaust
terminations must be at least 12
inches above grade and must be
oriented with respect to each other as
shown in Figure 15, Detail B. Refer to
section on alternate venting options
when higher snow levels are
anticipated.
ALTERNATE
TERMINATIONS
ALTERNATE HORIZONTAL
DIRECT VENT TERMINATIONS
RXGY-D02 AND -D03
The combustion air and exhaust
terminations may be raised a
maximum of
24 inches above the
wall penetration to maintain the
required 12 inch clearance above
grade or snow level. See Figure 12.
Size the pipe length according to
Table 2.
Review the following guidelines:
• Size the entire vent system
according to the alternate, not
standard, termination shown in
Table 2.
• Insulate the entire length of vent
pipe, between the elbow where the
pipe exits the wall and the elbow
where the termination is made, with
a closed-cell insulation, such as
“Arm-a-Flex” or “Rub-a-Tex” with a
minimum of 1/2” thickness.
• All elbows installed on the exterior
of the building must be of the long
sweep nature.
• As required for the horizontal piping
ran within the structure, any pipe
ran horizontal outside the structure
must slope upward a minimum of
1/4” per foot run so that condensate
drains toward the furnace.
From the top elbow in the exhaust
pipe, extend a length of PVC pipe
outward so that it terminates exactly
12 inches from the wall. See Figure
FIGURE 12
ALTERNATE HORIZONTAL DIRECT VENT TERMINATION
SEE DETAIL A
24 ” MAX.
PIPE
SUPPORT
STRAP
3 ” MAX.
EXHAUST VENT
2" PVC FOR MODELS WITH INPUT OF 90,000 BTU.
REDUCE TO 1
1
/
2
" FOR MODELS WITH INPUTS OF
45,000 AND 60,000 BTU (SEE DETAIL A). ELBOWS
AND RISERS ARE 2" PVC.
INTAKE VENT
2" PVC ELBOWS AND RISER
MODELS WITH INPUTS OF 45,000, 60,000,
AND 90,000 BTU.
USE KIT NO. RXGY-D02 WHEN 2" PIPE
IS USED BETWEEN FURNACE AND
OUTSIDE WALL. USE KIT NO. RXGY-D03
WHEN 3" PIPE IS USED.
I339
3 ”
4 ”
EXHAUST
VANE
INTAKE OPTIONAL
INTAKE
DETAIL B
EXHAUST / INTAKE RELATIONSHIP
DETAIL A
EXHAUST VENT FOR
MODELS WITH
INPUT OF 45,000 AND
60,000 BTU
DETAIL C
COMBUSTION AIR
TERMINATION
4" FROM
WALL
12"
FROM
WALL
1-1/2"
PIPE
12" FROM
WALL