Lochinvar RPV-S Service Manual
INSTALLATION & SERVICE MANUAL
RPV-I&S
POWERED VENT GAS WATER HEATER
WARNING
If the information in these instructions is not followed exactly,
a fire or explosion may result causing property damage, personal
injury or death.
FOR YOUR SAFETY
Do not store or use gasoline or other flammable, combustible, or
corrosive vapors and liquids in the vicinity of this or any other
appliance.
WHAT TO DO IF YOU SMELL GAS
• Do not try to light any appliance.
• Do not touch any electrical switch; do not use any telephone
in your building.
• Immediately call your gas supplier from a neighbor’s
telephone. Follow the gas supplier’s instructions.
• If you cannot reach your gas supplier, call the fire
department.
Installation and service must be performed by a qualified installer,
service agency or the gas supplier.
For your family’s comfort, safety and convenience we recommend
water heaters to be installed and serviced by a plumbing
professional.
TABLE OF CONTENTS
GENERAL INFORMATION............................................................1
INSTALLATION........................................................................2
Locating The Water Heater ................................................2
Minimum Clearances ..........................................................3
Venting ..............................................................................3
Specifications for
48 Gal, 65,000 BTU input (189.3 L, 19.1 kW/Hr)
65 Gal, 65,000 BTU input (246.1 L, 19.1 kW/Hr)
75 Gal, 76,000 BTU input (283.9 L, 22.3 kW/Hr) .............4
Specifications for
40 Gal, 40,000 BTU input (151.4 L, 11.7 kW/Hr)
48 Gal, 40,000 BTU input (189.3 L, 11.7 kW/Hr) .............5
Combustion Air Supply..............................................................7
Water Connections ....................................................................8
Gas Connections........................................................................9
Electrical Connections................................................................9
Wiring Diagram for
48 Gal, 65,000 BTU input (189.3 L, 19.1 kW/Hr)
65 Gal, 65,000 BTU input (246.1 L, 19.1 kW/Hr)
75 Gal, 76,000 BTU input (283.9 L, 22.3 kW/Hr) .............10
Wiring Diagram for
40 Gal, 40,000 BTU input (151.4 L, 11.7 kW/Hr)
48 Gal, 40,000 BTU input (189.3 L, 11.7 kW/Hr) .............11
GENERAL OPERATION................................................................9
Lighting and Shutdown Instructions.....................................12
Thermostat Adjustment .........................................................12
Burner Flame Check................................................................12
MAINTENANCE ...........................................................................13
INSTALLATION INSTRUCTIONS FOR POTABLE WATER AND
SPACE HEATING .........................................................................14
VENT PIPE PREPARATION AND JOINING ....................................14
GENERAL INFORMATION
This gas-fired water heater’s design is certified by CSA International under the
American National Standard Z21.10.1 - (as indicated on the rating plate) and
CSA 4.1-M - (as indicated on the rating plate).
This water heater must be installed in accordance with local codes or, in the
absence of local codes, the National Fuel Gas Code, ANSI Z223.1-Latest Edition)
and/or in Canada CAN/CGA B149 Installation Codes (Latest Editions). The
warranty for this water heater is in effect only when the water heater is
installed, adjusted, and operated in accordance with these Installation and
Operating Instructions. The manufacturer will not be held liable for any damage
resulting from alteration and/or failure to comply with these instructions.
This water heater is not design certified for installation in a mobile home. Such
an installation may create a hazardous condition and will nullify the warranty.
CAUTION
Incorrect operation of this appliance may create a hazard to
life and property and will nullify the warranty.
Do not use this appliance if any part has been submerged in water. You should
contact a qualified service technician to inspect the appliance and to replace
any part of the control system including the combination gas control which has
been submerged in water.
DANGER
Do not store or use gasoline or other flammable, combustible,
or corrosive vapors and liquids in the vicinity of this or any
other appliance.
IMPORTANT
Before proceeding, please inspect the water heater and components for
possible damage. DO NOT install any damaged components. If damage is
evident then please contact the supplier where the water heater was
purchased or the manufacturer listed on the rating plate for replacement
parts.
Make sure that you check the rating plate and combination gas control on the
water heater to be certain that the type of gas being supplied corresponds with
the marking on the rating plate and combination gas control.
A sacrificial anode is used to extend tank life. The removal of this anode, for
any reason, will nullify the warranty. In areas where water is unusually active,
an odor may occur at the hot water faucet due to a reaction between the
sacrificial anode and the impurities in the water. If this should happen, an
alternative anode may be purchased from the supplier that installed this water
heater. This will minimize the odor while protecting the tank. Additionally, the
water heater should be flushed with appropriate dissolvers to eliminate any
bacteria.
1
RPV-I&S
INSTALLATION
Locating The Water Heater
WARNING
Water heaters are heat producing appliances. To avoid damage or injury there shall
be no materials stored against the water heater or vent-air intake system and
proper care shall be taken to avoid unnecessary contact (especially by children) with
the water heater and vent-air intake components. UNDER NO CIRCUMSTANCES
SHALL FLAMMABLE MATERIALS, SUCH AS GASOLINE OR PAINT
THINNER BE USED OR STORED IN THE VICINITY OF THIS WATER
HEATER, VENT-AIR INTAKE SYSTEM OR IN ANY LOCATION FROM
WHICH FUMES COULD REACH THE WATER HEATER OR VENT-AIR
INTAKE SYSTEM.
DO NOT install the water heater in any location where gasoline or
flammable vapors are likely to be present.
Water Heaters in residential garages must be installed so that all
burner(s) and burner ignition device(s) are located not less than 18
inches (46 cm) above the floor and must be located or protected to
avoid physical damage. For other installations refer to local codes.
In the absence of local codes, the water heater must be installed in
compliance with the National Fuel Gas Code, ANSI Z223.1 - (Latest
Edition) and/or in Canada, CAN/CGAB149 Installation Codes (Latest
Editions).
The location of this water heater is of the utmost importance. Before installing
this water heater, read the installation section of these instructions. After
reading these installation and operating instructions, select a location for the
water heater where the floor is level and is easily accessible to gas and water
supply lines. DO NOT locate the water heater where water lines could
be subjected to freezing temperatures. Make sure the cold water
pipes are not located directly above the gas control so that
condensate during humid weather does not drip on the controls.
Water heater corrosion and component failure can be caused by the heating
and breakdown of airborne chemical vapors. Examples of some typical
compounds that are potentially corrosive are: spray can propellants, cleaning
solvents, refrigerator and air conditioning refrigerants, swimming pool chemicals,
calcium and sodium chloride, waxes and process chemicals. These materials
are corrosive at very low concentration levels with little or no odor to reveal
their presence. NOTE: DAMAGE TO THE WATER HEATER CAUSED BY
EXPOSURE TO CORROSIVE VAPORS IS NOT COVERED BY THE
WARRANTY. DO NOT OPERATE THE WATER HEATER IF EXPOSURE
HAS OR WILL OCCUR. DO NOT STORE ANY POTENTIALLY
CORROSIVE COMPOUNDS IN THE VICINITY OF THE WATER HEATER.
WARNING
Liquefied petroleum gases/propane gas are heavier than air and will remain at floor
level if there is a leak. Basements, crawl spaces, closets and areas below ground level
will serve as pockets for accumulation of leaking gas. Before lighting, smell all around
the appliance area for gas. Be sure to smell next to the floor.
WHAT TO DO IF YOU SMELL GAS
• Do not try to light any appliance.
• Do not touch any electrical switch; do not use any phone in your
building.
• Immediately call your gas supplier from a neighbor’s phone. Follow the
gas supplier’s instructions.
• If you cannot reach your gas supplier, call the fire department.
DO NOT OPERATE APPLIANCE UNTIL LEAKAGE IS CORRECTED!
DO NOT ATTEMPT TO LIGHT ANY GAS APPLIANCE IF YOU ARE
WARNING
NOT CERTAIN OF THE FOLLOWING:
• Liquefied petroleum gases/propane gas and natural gas have an
odorant added by the gas supplier that aids in the detection of the gas.
• Most people recognize this odor as a “sulfur” or “rotten egg” smell.
• Other conditions, such as “odorant fade” can cause the odorant to
diminish in intensity, or “fade”, and not be as readily detectable.
• If you have a diminished sense of smell, or are in any way unsure of the
presence of gas, immediately contact your gas supplier from a neighbor’s
telephone.
• Gas detectors are available. Contact your gas supplier or plumbing
professional, for more information.
The water heater must be located close enough to the outside wall to keep the
venting distance within the maximum distance described in the installation
instructions. Read the venting section in this installation instruction manual
before locating the water heater.
This water heater must be located in an area where leakage of the tank or
water line connections and the combination temperature and pressure relief
valve will not result in damage to the area adjacent to the water heater or to
lower floors of the structure. When such locations cannot be avoided, a suitable
drain pan adequately piped for proper drainage must be installed under the
water heater. The drain pan must not restrict combustion air flow. The drain
pan must be no greater than 1-½ inches (3.8 cm) deep and have a minimum
length and width of at least four (4) inches (10.2 cm) measured from the
jacket of the water heater. The drain pan, as described above, can be purchased
from your plumbing professional. The drain pan must be piped to an adequate
drain. The piping must be at least 3/4 inch (1.9 cm) in diameter and pitched
for proper drainage.
It is recommended that a minimum clearance of four (4) inches (10.2 cm) be
provided on the side of the water heater for servicing and maintenance of the
combination temperature and pressure relief valve.
MINIMUM CLEARANCES
WARNING
Failure to adhere to these installation and operating
instructions may create a hazard to life and property and
will nullify the warranty.
This installation must allow access to the front of the water heater and adequate
clearance must be provided for servicing and operating this water heater. The
water heater may be installed on either a combustible or non-combustible
floor. If the water heater is to be installed directly on carpeting, it must be
installed on top of a metal or wood panel extending beyond the full width and
depth of the appliance by at least three (3) inches (7.6 cm) in any direction or,
if the appliance is to be installed in an alcove or closet, the entire floor must be
covered by the panel. The minimum clearances to combustibles for this water
heater are: zero (0) inch (0 cm) from the sides and rear, five (5) inches (12.7
cm) from the front of the jacket, zero (0) inch (0 cm) from the vent connector
and fifteen (15) inches (38.1 cm) from the jacket top.
VENTING
This venting section is divided into two parts. Part I will cover
venting specifications for 48 Gal - 65,000 BTU (181.7 L - 19.1 kW/
Hr), 65 Gal -65,000 BTU (246.1 L - 19.1 kW/Hr), and 75 Gal -
2
RPV-I&S
76,000 BTU (283.9 L - 22.3 kW/Hr) models. Part II will cover
venting specifications for 40 Gal - 40,000 BTU (151.4 L - 11.7 kW/
Hr) and 48 gal - 40,000 BTU (181.7 L - 11.7 kW/Hr) models. Refer
to the rating plate located on the water heater for correct model
identification.
The National Fuel Gas Code ANSI Z223.1-(Latest Edition), CGA/CAN B149
Installation Code, and local codes have specific requirements for the location
of the vent terminals on vertical walls. The guide lines listed below are from
the National Fuel Gas Code. Consult the local codes, and/or National Fuel Gas
Code ANSI Z223.1-(Latest Edition), or CGA/CAN B149 Installation Code to
determine if there are any additions or changes to the following specifications.
(A) The vent terminal must terminate at least 3 feet (.91 m) above any
forced air inlet duct located within 10 feet (3 m). Exception: This
provision shall not apply to the combustion air intake of a direct vent
appliance.
(B) The vent terminal must terminate at least 4 feet (1.2m) below, 4 feet
(1.2 m) horizontally from, or 1 foot (0.31 m) above any door, window,
gravity air inlet into the building.
(C) The bottom of the vent terminal must be located at least 1 foot
(0.31 m) above ground and above the anticipated snow level.
(D) The vent terminal must not terminate over a public walkway or over an
area where condensate or vapor could create a nuisance or hazard
or could be detrimental to the operation of regulators, relief valve, or
other equipment.
(E) The water heater location must provide easy access for the entire
length of the vent connector.
(F) The vent system must be inspected at least once a year to ensure
against leakage of exhaust products.
In order to effectively control condensate from adversely affecting the
mechanical components of the water heater several methods may be employed:
1. For horizontal installations the vent pipe can be installed with a downward
slope (not less than 1/8" nor greater than 1/2” per foot maximum) and
away from the blower motor.
2. In order to prevent condensate from draining back into the blower (vertical
or horizontal runs), a fitting and drain hose is available as a condensate
trap kit (see Table 1 for service part numbers). The all rubber fitting with
drain outlet mounts directly to the blower motor outlet and is secured with
two hose clamps (one to the blower motor outlet and the other to the vent
connector). The plastic tubing is provided to drain any accumulated
condensate away from the water heater and to a suitable drain. The kit
comes complete with instructions for proper installation of the fitting.
Table - 1
Model Service Part
2" (5.1 cm) Blower Outlet (exhaust) DRV1200
3" (7.6 cm) Blower Outlet (exhaust) DRV1201
3. In order to prevent condensate from draining back into the blower (vertical
or horizontal runs), a drain tee and condensate trap can be installed in the
horizontal vent as close as practical to the blower vent connection (see
Figure1). The condensate disposal tube should be installed to drain any
accumulated condensate away from the water heater and to a suitable
drain. The drain tee and condensate hose should be available through
your local distributor.
Exceptions For Installations in Canada:
(A) The vent terminal must be located at least 1 foot (0.31 m) from any
window or door which can be opened in any building, any non-mechanical
air supply inlet to any building, or the combustion air to any inlet other
appliance.
(B) The vent terminal must be located at least 6 feet (1.8 m) from any
mechanical air supply inlet to the building.
(C) The vent terminal must not terminate above a meter/regulator
assembly within 3 feet (0.91 m) horizontally of the vertical center line
of the regulator and must be at least 6 feet (1.8 m) from any gas
service regulator vent outlet.
(D) The vent terminal must be at least 7 feet (2.1 m) above a paved
sidewalk or a paved driveway located on public property.
(E) The vent terminal must not terminate above a paved sidewalk or a
paved driveway, which is located on private adjacent property.
VENTING SYSTEM CONDENSATION
Condensate formation does not occur in all installations of power vented
heaters, but should be protected against on installations where condensation
can form in the venting system.
Formation of condensation in the venting system of Power Vented water
heaters is dependent upon installation conditions including, but not limited to:
1. Ambient temperature and humidity of installation location;
2. Ambient temperature and humidity of venting space; vent distance and
slope;
3. And product usage.
Figure 1
Part I - Venting Specifications for:
48 Gallon, 65,000 BTU input (181.7 L, 19.1 kW/Hr)
65 Gallon, 65,000 BTU input (246.1 L, 19.1 kW/Hr)
75 Gallon, 76,000 BTU input (283.9 L, 22.3 kW/Hr)
This water heater is a power vented appliance and is designed to vent its
products of combustion through 3" (7.6 cm) or 4" (10.2 cm) diameter Schedule
40 (solid or cellular core) PVC pipe to the outdoors. This water heater may be
either vented through the wall or vertically through the roof. Use a 3" (7.6 cm)
to 4" (10.2 cm) reducer to connect to the vent outlet when using 4" (10.2 cm)
PVC. Table 2 lists the maximum vent lengths for this water heater using 3" (7.6
cm) PVC. If possible, locate the water heater so that the venting length and
number of elbows are kept to the minimum distance necessary to reach the
outside. If the installation requires venting lengths that exceed the lengths
listed for 3" (7.6 cm) PVC in Table 2, then use 4" (10.2 cm) PVC for the vent
connector. Table 3 lists the venting distances allowed with 4" (10.2 cm)
3
RPV-I&S
diameter PVC pipe. When venting with 4" (10.2 cm) PVC, use a 4" (10.2 cm) to
3" (7.6 cm) reducer to exit through the building wall with 3" (7.6 cm) PVC. Use
the 3" (7.6 cm) vent terminal supplied with the water heater to terminate on
the outside of the building. If the length of 3" (7.6 cm) PVC needed to go
through the wall is greater than 14" (35.5 cm), use 4" (10.2 cm) to go through
the wall and reduce to 3" (7.6 cm) PVC immediately after exiting the outside
wall. Refer to the venting illustrations on the following pages. Make sure the
vent pipe terminal elbow fitting is at least 1" (2.5 cm) away from the edge of
the wall.
TABLE - 2
VENT CONNECTOR LENGTHS FOR 3" (7.6 cm) DIAMETER PVC
Terminating # of 90° Elbows Maximum Minimum
(excluding vent Length Length
terminal)
Through the Wall 1 40 ft (12.2 m) 2 ft (.6 m)
Through the Wall 2 35 ft (10.7 m) 3 ft (.9 m)
Through the Wall 3 30 ft (9.1 m) 5 ft (1.5 m)
Through the Wall 4 25 ft (7.6 m) 8 ft (2.4 m)
Through the Roof 1 40 ft (12.2 m) 2 ft (.6 m)
Through the Roof 2 35 ft (10.7 m) 3 ft (.9 m)
Through the Roof 3 30 ft (9.1 m) 5 ft (1.5 m)
Through the Roof 4 25 ft (7.6 m) 8 ft (2.4 m)
IMPORTANT
All of the Venting connections must be leak checked with a soap and
water solution upon initial start up of the water heater. Any leaks
must be repaired before continuing operation of the water heater.
NOTE: ABS or CPVC pipes may be substituted for PVC pipe. Do not
mix ABS and PVC pipe in the same installation.
THROUGH THE WALL VENTING:
Cut a 3-1/2 inch (8.9 cm) diameter hole in the wall at the point where the vent
connector is going to pass through the wall. Use the proper cement to secure
the 90° vent terminal provided with the water heater to the vent connector.
The distance between the edge of the 90° vent terminal and the exterior wall
(see Figure 3) must be 1 inch (2.5 cm). Use the proper cement and assembly
procedures to secure the vent connector joints between the terminal and the
blower outlet. Provide support brackets for every 3 feet (.91 m) of horizontal
vent.
TABLE - 3
VENT CONNECTOR LENGTHS FOR 4" (10.1 cm) DIAMETER PVC
Terminating # of 90° Elbows Maximum Minimum
(excluding vent Length Length
terminal)
Through the Wall 1 70 ft (21.3 m) 2 ft (.6 m)
Through the Wall 2 65 ft (19.8 m) 3 ft (.9 m)
Through the Wall 3 60 ft (18.3 m) 5 ft (1.5 m)
Through the Wall 4 55 ft (16.8 m) 8 ft (2.4 m)
Through the Wal 5 50 ft (15.3 m) 12 ft (3.6 m)
Through the Roof 1 70 ft (21.3 m) 2 ft (.6 m)
Through the Roof 2 65 ft (19.8 m) 3 ft (.9 m)
Through the Roof 3 60 ft (18.3 m) 5 ft (1.5 m)
Through the Roof 4 55 ft (16.8 m) 8 ft (2.4 m)
Through the Roof 5 50 ft (15.3 m) 12 ft (3.6 m)
NOTE: When using 4" (10.1 cm) PVC, use a 4" (10.1 cm) to 3" (7.6
cm) reducer and exit the building wall with 3" (7.6 cm) PVC using the
3" (7.6 cm) 90° vent terminal supplied. Two 45° elbows are equivalent
to one 90° elbow.
Figure 2
Figure 3
THROUGH THE ROOF VENTING: (VERTICAL VENTING)
Cut the necessary holes through the roof and ceiling and install the vent
connector as shown in Figure 4. Make sure that the installation meets the local
codes and/or The National Fuel Gas Code ANSI Z223.1 (Latest Edition) or CGA/
CAN B149 Installation Code.
Figure 4
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NOTE: For installations requiring both horizontal and vertical runs,
the following rule must be followed: Total number of feet of straight
pipe (both horizontally and vertically) must not exceed the allowable
length listed in the “Through The Wall” section of the table for total
number of elbows used. Also: Total number of vertical feet of straight
pipe must not exceed the allowable length listed in the “Through
The Roof” section of the table for total number of elbows used. For
angular rises in venting, any angle that is greater than or equal to
45° from the horizontal should be considered a vertical rise.
THROUGH THE WALL VENTING WITH LOW GROUND CLEARANCE:
When venting cannot exit through the wall at a height greater than or equal to
12" (30.5 cm) above the ground, or anticipated snow level, the installation
must be modified as shown below (see Figure 5). Refer to Table 4 for maximum
venting lengths using 3" (7.6 cm) PVC or Table 5 for maximum lengths using 4"
(10.1 cm) PVC.
Figure 5
TABLE - 4
3" (7.6 cm) PVC VENT CONNECTOR LENGTHS FROM INSIDE WALL
FOR LOW GROUND CLEARANCE INSTALLATIONS
Terminating # of Maximum Minimum
Elbows Length Length
(2) 90° Elbows with (1) 90° Elbow 1 30 ft (9.1 m) 5 ft (1.5 m)
(2) 90° Elbows with (1) 90° Elbow 2 25 ft (7.6 m) 6 ft (2 m)
(2) 90° Elbows with (1) 90° Elbow 3 20 ft (6.1 m) 8 ft (2.5 m)
(2) 90° Elbows with (1) 90° Elbow 4 15 ft (4.6 m) 10 ft (3 m)
TABLE - 5
4" (10.1 cm) VENT CONNECTOR LENGTHS FROM INSIDE WALL
FOR LOW GROUND CLEARANCE INSTALLATIONS
Terminating (Reduce 4" to 3") # of Maximum Minimum
(Reduce 10.1 cm to 7.6 cm) Elbows Length Length
(2) 90° Elbows with (1) 90° Elbow 1 60 ft (18.3 m) 10 ft (3 m)
(2) 90° Elbows with (1) 90° Elbow 2 55 ft (16.8 m) 12 ft (3.7 m)
(2) 90° Elbows with (1) 90° Elbow 3 50 ft (15.2 m) 15 ft (4.6 m)
(2) 90° Elbows with (1) 90° Elbow 4 45 ft (13.7 m) 18 ft (5.5 m)
(2) 90° Elbows with (1) 90° Elbow 5 40 ft (12.2 m) 22 ft (6.7 m)
HIGH ALTITUDE INSTALLATIONS FOR ELEVATIONS OVER
3,000 FEET (914.5 m) ABOVE SEA LEVEL
The capacity of the induced draft blower declines with increasing altitude due to
a reduction in the air density. In order to assure safe and reliable performance
of the water heater, the following guidelines must be followed. Refer to the
venting tables below for maximum distances for the altitudes in your location.
TABLE - 6
HIGH ALTITUDE LENGTHS
Altitude Max. venting Max. venting Modifications to
above length reduction length reduction water heater
sea level from tables from tables
0-3,000 ft
(0-914.5m)
over 3,00010,000 ft
(914.5-3048m)
2 & 4 3 & 5
No reduction
in vent length
required
No reduction
in vent length
required
No reduction
in vent length
required
No reduction
in vent length
required
None
Requires high altitude
Kit. Call the supplier or
the manufacturer
Part II - Venting Specifications for:
40 Gallon, 40,000 BTU input (151.4 L, 11.7 kW/Hr)
48 Gallon, 40,000 BTU input (189.3 L, 11.7 kW/Hr)
This water heater is a power vented appliance and is designed to vent its
products of combustion through 2" (5.1 cm) or 3" (7.6 cm) diameter Schedule
40 (solid or cellular core) PVC pipe to the outdoors. The water heater may be
either vented through the wall or vertically through the roof. Use a 3" (7.6 cm)
to 2" (5.1 cm) reducer to connect to the vent outlet when using 3" (7.6 cm)
PVC. Apply PVC cement at PVC locations. Table 7 lists the maximum vent
lengths for this water heater using 2" (5.1 cm) PVC. If possible, locate the
water heater so that the venting length and number of elbows are kept to the
minimum distance necessary to reach the outside. If the installation requires
venting lengths that exceed the lengths listed for 2" (5.1 cm) PVC in Table 7
then use 3" (7.6 cm) PVC for the vent connector. Table 8 lists the venting
distances allowed with 3" (7.6 cm) diameter PVC pipe. When venting with 3"
(7.6 cm) PVC, use a 3" (7.6 cm) to 2" (5.1 cm) reducer to exit through the
building wall with 2" (5.1 cm) PVC. Use the 2" (5.1 cm) vent terminal supplied
with the water heater to terminate on the outside of the building. If the length
of the 2" (5.1 cm)needed to go through the wall is greater than 14" (35.6 cm),
use 3" (7.6 cm) PVC to go through the wall and reduce to 2" (5.1 cm) PVC
immediately after exiting the outside wall. Refer to the venting illustrations on
the following pages. Make sure the vent pipe terminal is at least 1" (2.5 cm)
away from the edge of the wall. To vent horizontally with zero (0) elbows,
remove 3 screws from blower housing and rotate the blower housing 90°
clockwise (see Figure 7). Replace the three (3) screws once blower housing
rotation is complete.
TABLE - 7
VENT CONNECTOR LENGTHS FOR 2" (5.1cm) DIAMETER PVC
Terminating # of 90° Elbows Maximum Minimum
(excluding vent Length Length
terminal)
Through the Wall 0 45 ft (13.7m) 2 ft (.6 m)
Through the Wall 1 40 ft (12.2m) 2 ft (.6 m)
Through the Wall 2 35 ft (10.7m) 2 ft (.6 m)
Through the Wall 3 3 0 ft (9.2 m) 2 ft (.6 m)
Through the Wall 4 25 ft (7.6 m) 3 ft (.9 m)
Through the Roof 0 31 ft (9.5 m) 3 ft (.9 m)
Through the Roof 1 28 ft (8.5 m) 3 ft (.9 m)
Through the Roof 2 25 ft (7.6 m) 3 ft (.9 m)
Through the Roof 3 22 ft (6.7 m) 3 ft (.9 m)
Through the Roof 4 19 ft (5.8 m) 4 ft (1.2 m)
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