Vent Pipe Installation - Rheem RGRJ series Installation Instructions Manual

VENT PIPE INSTALLATION

NON-DIRECT VENT
INSTALLATION
GUIDELINES
IMPORTANT: FAILURE TO
CORRECTLY FOLLOW ALL
VENTING GUIDELINES MAY
RESULT IN ERRATIC FURNACE
OPERATION, FREEZE-UP OF
COMBUSTION AIR OR EXHAUST
AIR PIPING OR SOOTING OF THE
FURNACE.
All exhaust piping must be installed in
compliance with Part 7, "Venting of
Equipment," of the latest edition of the
National Fuel Gas Code NPFA54/
ANSI Z223.1-, CAN/CGA-B149, local
codes or ordinances and these
instructions.
1. Vertical piping is preferred.
2. All horizontal piping must slope
upward a minimum of 1
per foot of run so that
condensate drains toward the
furnace.
3. All horizontal runs must be
supported at least every 4 feet.
No sags or dips are permitted.
4. IMPORTANT: DO NOT
COMMON VENT WITH ANY
OTHER APPLIANCE. DO NOT
INSTALL IN THE SAME CHASE
OR CHIMNEY WITH A METAL
OR HIGH TEMPERATURE
PLASTIC PIPE FROM
ANOTHER GAS OR FUEL-
BURNING APPLIANCE
UNLESS THE REQUIRED
MINIMUM CLEARANCES TO
COMBUSTIBLES ARE
MAINTAINED BETWEEN THE
PVC PIPE AND OTHER PIPES.
5. All vent runs through uncon-
ditioned spaces where below-
freezing temperatures are
expected should be insulated
with 1-in. thick, medium-density,
foil-faced fiberglass. An
equivalent "arm-a-flex" or
FIGURE 14
TEE TERMINAL – FOR
STANDARD HORIZONTAL
SINGLE PIPE INSTALLATION
VENT
12"
TABLE 1
FOR NON-DIRECT VENT APPLICATIONS - AIR FOR COMBUSTION
PROVIDED FROM INDOORS
FURNACE
INPUT
45,000
60,000
75,000
/ inch
4
90,000
105,000
120,000
NOTES:
1. *N.R. - NOT RECOMMENDED.
2. MAXIMUM OF 6 - 90 DEGREE ELBOWS MAY BE USED. DO NOT COUNT ELBOWS REQUIRED FOR
ALTERNATE TERMINATION. USE ONLY MEDIUM OR LONG SWEEP ELBOWS.
3. A 45° DEGREE ELBOW IS CONSIDERED ONE ELBOW.
ELEVATED SINGLE PIPE ALTERNATE TEE TERMINATION
See Figure 15. The tee termination may be elevated up to 24 inches above the
wall penetration if required for anticipated snow levels. Use 2 medium-radius, 2-in.
PVC elbows and 2-in. PVC pipe, attaching the tee so it is 12 inches from the wall.
FIGURE 15
ALTERNATE HORIZONTAL
TERMINATION FOR
NON-DIRECT VENT
INSTALLATIONS
12" MIN. ABOVE
GRADE OR
SNOW LEVEL
MAXIMUM ALLOWABLE LENGTH IN FEET OF EACH EXHAUST PIPE AND INTAKE PIPE
PIPE
TERMINATION
SIZE
Standard
2"
Alternate
Standard
2"
Alternate
Standard
3"
Alternate
Standard
2"
Alternate
Standard
3"
Alternate
Standard
3"
Alternate
Standard
3"
Alternate
Standard
3"
Alternate
OUTSIDE
WALL
NUMBERS OF ELBOWS
45° OR 90°
Medium / Long Radius ONLY
1-2 3-4
60 55
55 50
35 30
30 25
120 120
120 120
20 15
NR NR
110 105
80 70
90 85
60 50
80 75
50 40
70 65
40 30
PIPE
SUPPORT
24"
STRAP
MAX.
5-6
50
45
25
20
115
110
10
NR
95
65
75
45
65
35
55
25
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