25
FIGURE 17
ALTERNATE HORIZONTAL DIRECT VENT TERMINATION
SEE DETAIL A
24” MAX.
PIPE
SUPPORT
STRAP
3” MAX.
NOTE: 3-1/2”
MAX. WHEN
D04 KIT IS
USED.
EXHAUST VENT
2
1
/2" PVC FOR MODELS WITH 120,000 BTU INPUT
(KIT NO. (-)XGY-D04)
2" PVC FOR MODELS WITH INPUTS OF 90,000 AND
120,000 BTU. REDUCE TO 1
1
/2" FOR MODELS WITH
INPUTS OF 45,000 THRU 75,000 BTU (SEE DETAIL A).
ELBOWS AND RISERS ARE 2" PVC.
INTAKE VENT
2
1
/2" PVC FOR MODELS WITH
120,000 BTU INPUT.
2" PVC ELBOWS AND RISER
MODELS WITH INPUTS OF 45,000
THRU 105,000 BTU.
USE KIT NO. (-)XGY-D02/D02A WHEN 2"
PIPE IS USED BETWEEN FURNACE AND
OUTSIDE WALL. USE KIT NO. (-)XGY-
D03/D03A WHEN 3" PIPE IS USED.
I339
• 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
17. Reduce the exhaust pipe
extension to is 1
1
⁄2 inch pipe for
45,000 BTUH through 75,000 BTUH
units.
The 45,000 BTUH unit only uses kit
(-)XGY-D02/D02A. The 60,000 BTUH
and 75,000 BTUH downflow only
units may use kits (-)XGY-D02/D02A
or (-)XGY-D03/D03A depending on
pipe lengths and number of elbows.
Use kit (-)XGY-D03/D03A with 90,000
BTUH downflow through 120,000
BTUH units or
upflow 90,000 or
120,000. The (-)XGY-D04/D04A kit
only applies to the 120,000 BTUH
unit using an alternate termination
and excessively long runs. See
Table 4.
The following are parts lists for the
(-)XGY-D02/D02A, (-)XGY-D03/D03A
and (-)XGY-D04/D04A alternate
horizontal direct vent termination kits:
(-)XGY-D02/D02A
1. 2-in. tee with reducer assembly
2.
1
⁄2-in. PVC 6-in. dia. trap
3. PVC vane
4. 2-in. PVC elbow
5. 1
1
⁄2-in. PVC nipple with coupling
6. PVC strap
7. vent template
(-)XGY-D03/D03A
1. 3-in. tee with reducer assembly
2.
1
⁄2-in. PVC 6-in. dia. trap
3. PVC vane
4. 2-in. PVC elbow
5. PVC strap
6. vent template
(-)XGY-D04/D04A
1. 2
1
⁄2-in. PVC elbow
2. 3" x 2
1
⁄2" PVC bushing
3. 2
1
⁄2" x 6
1
⁄2" long PVC pipe
4. 2
1
⁄2" x 16" long PVC pipe
5. 2
1
⁄2" x 21" long PVC pipe
6. PVC vane
7.
3-in. tee with reducer assembly
8. 6-in. dia.
1
⁄2-in. PVC trap
9. PVC strap
10. vent template
NOTE: The (-)XGY-D04/D04A kit only
applies to the 120,000 BTUH unit
using an alternate termination and
excessively long runs.
3”
4”
EXHAUST
VANE
INTAKE
OPTIONAL
INTAKE
DETAIL B
EXHAUST / INTAKE RELATIONSHIP
DETAIL A
EXHAUST VENT FOR
MODELS WITH
INPUT OF 45,000 THRU
75,000 BTU
DETAIL C
COMBUSTION AIR
TERMINATION
4" FROM
WALL
12"
FROM
WALL
1-1/2"
PIPE
12" FROM
WALL
(-)XGY-D02A
1. 2” Tee assembly w/
1
⁄2” drain
connection
2.
1
⁄2” PVC-5” diameter trap
3. Wind deflector vane
4. Vent template
(-)XGY-D03A
1. 3” Tee assembly w/
1
⁄2” drain
connection
2.
1
⁄2” PVC-5” diameter trap
3. Wind deflector vane
4. Vent Template
(-)XGY-D04A
1. 3” Tee assembly w/
1
⁄2” drain
connection
2.
1
⁄2” PVC-6” diameter trap
3. Wind deflector vane
4. Vent template