Lochinvar RPV-I&S Manual

1
RPV-I&S
POWERED VENT GAS WATER HEATER
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
AmericanNationalStandardZ21.10.1 - (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
absenceoflocal codes, theNationalFuelGasCode,ANSIZ223.1-LatestEdition)
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
OperatingInstructions.Themanufacturerwill notbeheldliableforanydamage
resulting from alteration and/or failure to comply with these instructions.
Thiswater heateris not designcertified forinstallationin amobile home. Such
an installation may create a hazardous condition and will nullify the warranty.
Donotusethis appliance ifanyparthasbeensubmerged in water.Youshould
contact a qualified service technician to inspect the appliance and to replace
anypartofthe control systemincludingthecombinationgas control whichhas
been submerged in water.
Makesure thatyou check therating plateandcombination gascontrol on the
waterheatertobecertainthatthetypeofgasbeingsuppliedcorrespondswith
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
alternativeanodemaybepurchased fromthesupplierthatinstalledthiswater
heater. This will minimize the odor while protecting the tank. Additionally, the
water heater should be flushed with appropriate dissolvers to eliminate any
bacteria.
INSTALLATION & SERVICE MANUAL
WARNING
If the information in these instructions is not followed exactly,
afireorexplosionmayresultcausingpropertydamage,personal
injury or death.
FOR YOUR SAFETY
Donotstore or usegasolineorother 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.
•Donottouchanyelectricalswitch;donotuseanytelephone
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.
Installationandservicemustbeperformedbyaqualifiedinstaller,
service agency or the gas supplier.
CAUTION
Incorrect operation of this appliance may create a hazard to
life and property and will nullify the warranty.
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.DONOTinstallanydamagedcomponents.Ifdamageis
evident then please contact the supplier where the water heater was
purchased or the manufacturer listed on the rating plate for replacement
parts.

2
RPV-I&S INSTALLATION
Locating The Water Heater
DO NOTinstall 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)andburner ignition device(s)arelocatednot less than18
inches (46 cm) above the floor and must be located or protected to
avoidphysicaldamage. For other installationsrefertolocal 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/orinCanada,CAN/CGAB149InstallationCodes(Latest
Editions).
Thelocation of thiswater heater isof the utmostimportance. 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.DONOTlocatethewaterheaterwherewaterlinescould
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,refrigeratorandairconditioningrefrigerants,swimmingpoolchemicals,
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.
Thewaterheatermust be locatedcloseenoughtotheoutside wall tokeepthe
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
lowerfloorsofthestructure.Whensuchlocationscannotbeavoided,asuitable
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
panmust beno greaterthan 1-½inches (3.8 cm)deepand have aminimum
length and width of at least four (4) inches (10.2 cm) measured from the
jacketofthewaterheater.Thedrainpan,asdescribedabove,canbepurchased
fromyourplumbingprofessional. The drainpanmustbepiped to anadequate
drain. The piping must be at least 3/4 inch (1.9 cm) in diameter and pitched
for proper drainage.
Itis recommendedthat aminimum clearanceof four (4) inches (10.2 cm)be
providedonthe sideofthewater heater forservicingand maintenance ofthe
combination temperature and pressure relief valve.
MINIMUM CLEARANCES
Thisinstallationmustallowaccesstothefrontofthewaterheaterandadequate
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
installedon top ofametal orwoodpanel extending beyondthefull widthand
depthoftheappliancebyatleastthree(3)inches(7.6 cm)inanydirectionor,
iftheapplianceistobeinstalledinanalcoveorcloset,theentirefloormustbe
coveredby the panel. Theminimum clearances tocombustibles for thiswater
heater are: zero (0) inch (0 cm)fromthesidesand rear, five (5)inches(12.7
cm)fromthe front ofthejacket,zero (0) inch(0 cm)fromtheventconnector
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 -
WARNING
Liquefiedpetroleumgases/propanegasareheavierthanairandwillremainatfloor
levelifthereisaleak.Basements,crawlspaces,closetsandareasbelowgroundlevel
willserveaspocketsforaccumulationofleakinggas.Beforelighting,smellallaround
theapplianceareaforgas.Besuretosmellnexttothefloor.
WHAT TO DO IF YOU SMELL GAS
•Donottrytolightanyappliance.
•Do not touch any electrical switch; do not use any phone in your
building.
•Immediatelycallyourgassupplierfromaneighbor’sphone.Followthe
gassupplier’sinstructions.
•Ifyoucannotreachyourgassupplier,callthefiredepartment.
DO NOT OPERATE APPLIANCE UNTIL LEAKAGE IS CORRECTED!
WARNING
DO NOT ATTEMPT TO LIGHT ANY GAS APPLIANCE IF YOU ARE
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.
•Ifyouhaveadiminishedsenseofsmell,orareinanywayunsureofthe
presenceofgas,immediatelycontactyourgassupplierfromaneighbor’s
telephone.
•Gas detectors are available. Contact your gas supplier or plumbing
professional, for more information.
WARNING
Failure to adhere to these installation and operating
instructions may create a hazard to life and property and
will nullify the warranty.
WARNING
Waterheatersareheatproducingappliances.Toavoiddamageorinjurythereshall
be no materials stored against the water heater or vent-air intake system and
propercareshallbetakentoavoidunnecessarycontact(especiallybychildren)with
thewaterheaterandvent-airintakecomponents.UNDERNOCIRCUMSTANCES
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.

3
RPV-I&S
76,000 BTU (283.9 L - 22.3 kW/Hr) models. Part II will cover
ventingspecificationsfor40Gal-40,000BTU(151.4L-11.7kW/
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
theNationalFuel GasCode. Consultthelocal codes, and/orNationalFuel Gas
Code ANSI Z223.1-(Latest Edition), or CGA/CAN B149 Installation Code to
determineifthereareany additionsorchangestothefollowingspecifications.
(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)aboveanydoor,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) Thevent terminal mustnot terminate overa public walkwayor over an
area where condensate or vapor could create a nuisance or hazard
or could be detrimental to the operation of regulators, reliefvalve, 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.
Exceptions For Installations in Canada:
(A) The vent terminal must be located at least 1 foot (0.31 m) from any
windowordoorwhichcanbeopenedinanybuilding,anynon-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
assemblywithin 3feet (0.91 m) horizontallyof the verticalcenterline
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
heatersis dependentupon installation conditionsincluding, butnot 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.
In order to effectively control condensate from adversely affecting the
mechanicalcomponentsofthewaterheaterseveralmethodsmaybeemployed:
1. Forhorizontalinstallationsthevent pipecanbeinstalledwithadownward
slope (notless than1/8" norgreater than1/2” perfoot maximum)and
away from the blower motor.
2. Inordertopreventcondensatefromdrainingbackintotheblower(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
drainoutletmountsdirectlytotheblowermotoroutletandissecuredwith
twohoseclamps(onetotheblowermotoroutletandtheothertothevent
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.
3. Inordertopreventcondensatefromdrainingbackintotheblower(vertical
orhorizontalruns),adrainteeandcondensatetrapcanbeinstalledinthe
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.
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
productsofcombustionthrough3"(7.6 cm)or4"(10.2cm)diameterSchedule
40 (solid or cellular core) PVC pipe to the outdoors. This water heater may be
eitherventedthroughthewallorverticallythroughtheroof. Usea3"(7.6cm)
to4" (10.2 cm) reducertoconnecttotheventoutletwhenusing4" (10.2cm)
PVC.Table2liststhemaximumventlengthsforthiswaterheaterusing3"(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
listedfor 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)
Table - 1
Model Service Part
2" (5.1 cm) Blower Outlet (exhaust) DRV1200
3" (7.6 cm) Blower Outlet (exhaust) DRV1201
Figure 1

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RPV-I&S
diameterPVCpipe.Whenventingwith4"(10.2 cm)PVC,usea4"(10.2cm)to
3" (7.6 cm)reducerto exit throughthebuildingwall with 3" (7.6 cm)PVC.Use
the3" (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
throughthewallis greater than14"(35.5 cm),use4"(10.2cm)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.
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 with3"(7.6 cm)PVCusingthe
3" (7.6cm)90°ventterminalsupplied. Two45°elbowsareequivalent
to one 90° elbow.
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:
Cuta3-1/2inch(8.9 cm)diameterholeinthewallatthepointwherethevent
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.
Thedistance betweenthe edge ofthe 90°ventterminal andthe exterior wall
(seeFigure 3)must be1 inch(2.5 cm). Usethepropercementandassembly
procedures to secure the vent connector joints between the terminal and the
bloweroutlet. Provide supportbrackets for every3 feet(.91m)ofhorizontal
vent.
THROUGH THE ROOF VENTING: (VERTICAL VENTING)
Cut the necessary holes through the roof and ceiling and install the vent
connectorasshownin Figure4. Makesurethattheinstallationmeetsthelocal
codesand/orTheNationalFuelGasCodeANSIZ223.1(LatestEdition)orCGA/
CAN B149 Installation Code.
Figure 2
TABLE - 3
VENT CONNECTOR LENGTHS FOR 4" (10.1 cm) DIAMETER PVC
Terminating # of 90° Elbows Maximum Minimum
(excluding vent Length Length
terminal)
ThroughtheWall 170ft(21.3m) 2ft(.6m)
ThroughtheWall 265ft(19.8m) 3ft(.9m)
ThroughtheWall 360ft(18.3m) 5ft(1.5m)
ThroughtheWall 455ft(16.8m) 8ft(2.4m)
ThroughtheWal 550ft(15.3m) 12ft(3.6m)
ThroughtheRoof 170ft(21.3m) 2ft(.6m)
ThroughtheRoof 265ft(19.8m) 3ft(.9m)
ThroughtheRoof 360ft(18.3m) 5ft(1.5m)
ThroughtheRoof 455ft(16.8m) 8ft(2.4m)
ThroughtheRoof 550ft(15.3m) 12ft(3.6m)
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.
Figure 3
Figure 4
TABLE - 2
VENT CONNECTOR LENGTHS FOR 3" (7.6 cm) DIAMETER PVC
Terminating # of 90° Elbows Maximum Minimum
(excluding vent Length Length
terminal)
ThroughtheWall 140ft(12.2m) 2ft(.6m)
ThroughtheWall 235ft(10.7m) 3ft(.9m)
ThroughtheWall 330ft(9.1m) 5ft(1.5m)
ThroughtheWall 425ft(7.6m) 8ft(2.4m)
ThroughtheRoof 140ft(12.2m) 2ft(.6m)
ThroughtheRoof 235ft(10.7m) 3ft(.9m)
ThroughtheRoof 330ft(9.1m) 5ft(1.5m)
ThroughtheRoof 425ft(7.6m) 8ft(2.4m)

5
RPV-I&S
NOTE: Forinstallationsrequiringboth horizontal andverticalruns,
thefollowingrulemustbefollowed:Totalnumberoffeetofstraight
pipe(bothhorizontallyandvertically)mustnotexceedtheallowable
lengthlistedinthe“ThroughTheWall”sectionofthetablefortotal
numberof elbowsused. Also:Total numberofverticalfeetofstraight
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:
Whenventingcannotexit through thewallataheightgreater than orequalto
12" (30.5 cm) above the ground, or anticipated snow level, the installation
mustbemodifiedasshownbelow(seeFigure5).RefertoTable4formaximum
ventinglengthsusing3"(7.6 cm)PVCorTable5formaximumlengthsusing4"
(10.1 cm) PVC.
HIGH ALTITUDE INSTALLATIONS FOR ELEVATIONS OVER
3,000 FEET (914.5 m) ABOVE SEA LEVEL
Thecapacityoftheinduceddraftblowerdeclineswithincreasingaltitudedueto
areductionintheairdensity. Inordertoassuresafeandreliableperformance
of the water heater, the following guidelines must be followed. Refer to the
ventingtablesbelowformaximumdistances for the altitudesinyourlocation.
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
productsofcombustion through 2" (5.1 cm)or3"(7.6 cm)diameterSchedule
40 (solid or cellular core) PVC pipe to the outdoors. The water heater may be
eitherventedthroughthewallorverticallythroughtheroof. Usea3"(7.6cm)
to2" (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
waterheatersothat the ventinglengthandnumberofelbows are kepttothe
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
distancesallowed with3" (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
buildingwallwith 2" (5.1cm)PVC.Use the 2" (5.1 cm)ventterminalsupplied
withthewaterheatertoterminateontheoutsideofthebuilding.Ifthelength
ofthe2"(5.1 cm)neededtogothroughthe wallisgreaterthan14"(35.6cm),
use 3" (7.6 cm) PVC to go through the wall and reduce to 2" (5.1 cm) PVC
immediatelyafterexitingtheoutsidewall. Refer to theventingillustrationson
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 - 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°Elbowswith(1)90°Elbow 130ft(9.1m) 5ft(1.5m)
(2)90°Elbowswith(1)90°Elbow 225ft(7.6m) 6ft(2m)
(2)90°Elbowswith(1)90°Elbow 320ft(6.1m) 8ft(2.5m)
(2)90°Elbowswith(1)90°Elbow 415ft(4.6m) 10ft(3m)
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°Elbowswith(1)90°Elbow 160ft(18.3m) 10 ft(3m)
(2)90°Elbowswith(1)90°Elbow 255ft(16.8m) 12ft(3.7m)
(2)90°Elbowswith(1)90°Elbow 350ft(15.2m) 15ft(4.6m)
(2)90°Elbowswith(1)90°Elbow 445ft(13.7m) 18ft(5.5m)
(2)90°Elbowswith(1)90°Elbow 540ft(12.2m) 22ft(6.7m)
TABLE - 7
VENT CONNECTOR LENGTHS FOR 2" (5.1cm) DIAMETER PVC
Terminating # of 90° Elbows Maximum Minimum
(excluding vent Length Length
terminal)
ThroughtheWall 045ft(13.7m) 2ft(.6m)
ThroughtheWall 140ft(12.2m) 2ft(.6m)
ThroughtheWall 235ft(10.7m) 2ft(.6m)
ThroughtheWall 33 0 ft(9.2m) 2 ft(.6m)
ThroughtheWall 425 ft(7.6m) 3 ft(.9m)
ThroughtheRoof 031 ft(9.5m) 3 ft(.9m)
ThroughtheRoof 128 ft(8.5m) 3 ft(.9m)
ThroughtheRoof 225 ft(7.6m) 3 ft(.9m)
ThroughtheRoof 322 ft(6.7m) 3 ft(.9m)
ThroughtheRoof 419 ft(5.8m) 4 ft(1.2m)
Figure 5
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
2 & 4 3 & 5
Requireshighaltitude
Kit.Callthesupplieror
themanufacturer
Noreduction
inventlength
required
Noreduction
inventlength
required
over3,000-
10,000ft
(914.5-3048m)
0-3,000ft
(0-914.5m) Noreduction
inventlength
required
Noreduction
inventlength
required
None

6
RPV-I&S
NOTE: When using 3"(7.6 cm) PVC, use a 3"(7.6 cm) to 2"(5.1cm)
reducer and exit the building wall with 2"(5.1 cm)PVCusingthe2"
(5.1 cm) 45°ventterminal supplied.Two45°elbows areequivalent
to one 90° elbow. Each 90° elbow is equivalent to 5 feet (1.5m)of
straight vent pipe.
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 2 ½ inch (6.4 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
the45°ventterminalprovidedwiththewaterheatertotheventconnector.The
distancebetweentheedgeofthe 45°ventterminalandtheexteriorwall(see
Figure 8) must be at least 1 inch (2.5 cm). Use the proper cement and
assemblyproceduresto secure theventconnectorjoints between theterminal
and the blower outlet. Provide support brackets for every 3 feet (0.91 m)of
horizontal vent.
THROUGH THE ROOF VENTING: (VERTICAL VENTING)
Cut the necessary holes through the roof and ceiling and install the vent
connector as shown in (Figure 9). Make sure that the installation meets the
localcodesand/orThe National FuelGasCodeANSIZ223.1 (Latest Edition)or
CGA/CAN B149 Installation Code.
THROUGH THE WALL VENTING WITH LOW GROUND CLEARANCE:
Whenventingcannotexit through thewallataheightgreater than orequalto
12" (30.5 cm) from the ground or from the anticipated snow level, then the
installation must be modified as shown below see Figure 10. Refer to Table 9
formaximum venting lengthsusing 2" (5.1 cm) PVCor Table 10for maximum
lengthsusing 3" (7.6 cm) PVC.
Figure 10
Figure 6
IMPORTANT
AlloftheVentingconnectionsmustbe leak checked withasoapandwater
solutionuponinitialstartupofthewaterheater.Anyleaksmustberepaired
before continuing operation of the water heater.
Figure 7
Figure 9
Figure 8
TABLE-8
VENT CONNECTOR LENGTHS FOR 3"(7.6 cm) DIAMETER PVC
Terminating # of 90° Elbows Maximum Minimum
(excluding vent Length Length
terminal)
ThroughtheWall 0105ft(32.0m) 10ft(3.1m)
ThroughtheWall 11100 ft(30.5m) 10ft(3.1m)
ThroughtheWall 295ft(29.0m) 10 ft(3.1m)
ThroughtheWall 390ft(27.5m) 10 ft(3.1m)
ThroughtheWall 485ft(26.0m) 10 ft(3.1m)
ThroughtheWall 580ft(24.4m) 10 ft(3.1m)
ThroughtheRoof 055ft(16.8m) 5 ft(1.5m)
ThroughtheRoof 150ft(15.3m) 5 ft(1.5m)
ThroughtheRoof 245ft(13.7m) 5 ft(1.5m)
ThroughtheRoof 340ft(12.2m) 5 ft(1.5m)
ThroughtheRoof 435ft(10.7m) 5 ft(1.5m)

7
RPV-I&S
NOTE: Forinstallations requiring both horizontal andverticalruns,
thefollowingrulemustbefollowed:Totalnumberoffeetofstraight
pipe(bothhorizontallyandvertically)mustnotexceedtheallowable
lengthlistedinthe“ThroughTheWall”sectionofthetablefortotal
numberofelbowsused. Also: Total number ofverticalfeetofstraight
pipemustnotexceedtheallowablelengthlistedinthe“ThroughThe
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.
HIGH ALTITUDE INSTALLATIONS FOR ELEVATIONS OVER 2,000 FEET
(610 m)ABOVE SEA LEVEL
Thecapacityoftheinduceddraftblowerdeclineswithincreasingaltitudedueto
areductionintheairdensity. Inordertoassuresafeandreliableperformance
of the water heater, the following guidelines must be followed. Refer to the
ventingtables belowfor maximumdistances forthe altitudes in your location.
COMBUSTION AIR SUPPLY
Provideadequate airfor combustionand ventilation. Aninsufficient supply of
airwillcauserecirculationofcombustionproductsresultinginaircontamination
that may be hazardous to life. Such a condition often will result in a yellow,
luminous burner flame, causing carbon build up or sooting of the combustion
chamber, burners, and flue tubes with possible damage to the heater.
When an exhaust fan is installed in the same room with a heater, sufficient
openingsforairmustbeprovidedinthewalls. Undersizedopeningswillcause
air to be drawn into the room through the chimney, causing recirculation of
combustion products.
Unconfined Spaces
In unconfined spaces in buildings, infiltration may be adequate to provide air
forcombustion,ventilation,anddilutionoffluegases.However,inbuildingsof
tightconstruction (forexample, weatherstripping, heavilyinsulated, caulked,
vaporbarrier,etc.),additionalairmayneedtobeprovidedusingthemethods
describedunderCONFINEDSPACES: AllAirFromOutdoorsorSpeciallyEngineered
Installations.
Confined Spaces
Confined spaces are spaces defined as having less than 50 ft.3/1000 BTU
(1.4 m3/0.29 kw-hr).
All Air From Inside the Building: The confined space must be provided
withtwopermanentopeningscommunicatingdirectlywithanadditionalroom(s)
of sufficient volume so that the combined volume of all spaces meets the
criteriaforanunconfinedspace. Thetotalinputofallgasutilizationequipment
installedinthecombinedspacemustbeconsideredinmakingthisdetermination.
Each opening must have a minimum free area of 1 square inch per 1000 BTU
(6.5 cm2/0.29 kw) per hour of the total input rating of all gas utilization
equipment in the confined space, but not less than 100 square inches (645
cm2). Oneopeningmustbewithin 12 inches(31cm)ofthetopandonewithin
12 inches (31 cm) of the bottom of the enclosure.
All Air From Outdoors: The confined space must be provided with two
permanentopenings,onecommencingwithin12inches(31cm)ofthetopand
one commencing within 12 inches (31cm) from the bottom of the enclosure.
The openings must communicate directly, or by ducts, with the outdoors or
spaces (crawl or attic) that freely communicate with the outdoors.
TABLE - 9
2" (5.1 cm) PVC VENT CONNECTOR LENGTHS FROM INSIDE WALL
FOR LOW GROUND CLEARANCE INSTALLATIONS
Terminating # of Maximum Minimum
Elbows Length Length
(2)90°ElbowswithVentTerminal 035ft(10.7m) 2ft(.6m)
(2)90°ElbowswithVentTerminal 130ft(9.2m) 2ft(.6m)
(2)90°ElbowswithVentTerminal 225ft(7.6m) 2ft(.6m)
(2)90°ElbowswithVentTerminal 320ft(6.1m) 3ft(.9m)
(2)90°ElbowswithVentTerminal 415ft(4.6m) 4ft(1.2m)
TABLE - 10
3" (7.6 cm) VENT CONNECTOR LENGTHS FROM INSIDE WALL
FOR LOW GROUND CLEARANCE INSTALLATIONS
Terminating (Reduce 3" to 2") # of Maximum Minimum
(Reduce 7.6 cm to 5.1 cm) Elbows Length Length
(2)90°Elbowswith(1)90°Elbow 160ft(18.3m) 10ft(3m)
(2)90°ElbowswithVentTerminal 090ft(27.5m) 10ft(3.1m)
(2)90°ElbowswithVentTerminal 185ft(25.9m) 10ft(3.1m)
(2)90°ElbowswithVentTerminal 280ft(24.4m) 10ft(3.1m)
(2)90°ElbowswithVentTerminal 375ft(22.9m) 10ft(3.1m)
(2)90°ElbowswithVentTerminal 470ft(21.4m) 10ft(3.1m)
(2)90°ElbowswithVentTerminal 565ft(19.8m) 12ft(3.7m)
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.
•Donot touchanyelectricalswitch;do notuseanytelephone
in your building.
•Immediately call your gas supplier from a neighbor’s
telephone. Follow the gas supplier’s instructions.
•Ifyoucannotreachyourgassupplier,callthefiredepartment.
DO NOT OPERATE APPLIANCE UNTIL LEAKAGE IS CORRECTED!
IMPORTANT
The flow of combustion and ventilating air must not be obstructed.
TABLE - 11
HIGH ALTITUDE VENT CONNECTOR MODIFICATIONS
Altitude above Maximum venting Maximum venting
sea level length reduction length reduction
tables 7 & 9 tables 8 & 10
Reducemaximumvent
lengthby20ft(6.1m) Noreductioninvent lengthrequired
over2,000 -5,000ft
(over610-1524m)
0-2,000ft
(0-610m) Noreductioninvent lengthrequired
over5,000-8,000ft
(over1524-2439m) Useonly3"(7.6cm) PVC(Tables8&10) Noreductioninvent
lengthrequired
over8,000-10,000ft
(over2439 -2540m) Useonly3"(7.6cm) PVC(Tables8&10) Reducemaximumvent lengthby20ft(6.1m)
Noreductioninvent
lengthrequired

8
RPV-I&S
1. When directly communicating with the outdoors, each opening must have
aminimumfreeareaof1squareinchper4000BTU(6.5cm2/1.2 kw) per
hour of total input rating of all equipment in the enclosure.
2. When communicating with the outdoors through vertical ducts, each
opening must have a minimum free area of 1 square inch per 4000 BTU
(6.5 cm2/1.2 kw) per hour of total input rating of all equipment in the
enclosure.
3. When communicating with the outdoors through horizontal ducts, each
opening must have a minimum free area of 1 square inch per 2000 BTU
(6.5 cm2/0.6 kw) per hour of total input rating of all equipment in the
enclosure.
4. When ducts are used, they must be of the same cross-sectional area as
the free area of the openings to which they connect. The minimum
dimension of rectangular air ducts must be not less than 3 inches
(7.5 cm).
Specially Engineered Installations
The requirements noted under CONFINED SPACES above must not necessarily
governwhenspecialengineering, approvedbytheauthorityhavingjurisdiction,
providesan adequate supplyofair for combustion,ventilation,and dilutionof
flue gases.
WATER CONNECTIONS
Note:
BEFORE PROCEEDING WITH THE INSTALLATION, CLOSE THE MAIN WATER SUPPLY VALVE.
Aftershuttingoffthemainwatersupply,openafaucettorelievethewaterline
pressure to prevent any water from leaking out of the pipes while making the
water connections to the water heater. After the pressure has been relieved,
close the faucet. The COLD water inlet and HOT water outlet are identified on
the top of the water heater. The fittings at the cold water inlet and hot water
outlet are dielectric waterway fittings with 3/4" NPT male thread. Make the
proper plumbing connections between the water heater and the plumbing
system to the house. Install a shut-off valve in the cold water supply line.
If this water heater is installed in a closed water supply system, such as one
havingaback-flowpreventerinthecoldwatersupply,provisionsmustbemade
to control thermal expansion. DO NOToperate this water heater in a closed
systemwithoutprovisionsforcontrollingthermalexpansion. Yourwatersupplier
orlocalplumbinginspectorshouldbecontactedonhowtocontrolthissituation
After installation of the water lines, open the main water supply valve and fill
the water heater. While the water heater is filling, open several hot water
faucets to allow air to escape from the water system. When a steady stream
ofwaterflowsthroughthefaucets,closethemandcheckallwaterconnections
for possible leaks. NEVER OPERATE THE WATER HEATER WITHOUT
FIRST BEING CERTAIN IT IS FILLED WITH WATER.
This water heater can deliver scalding temperature water at any faucet in the
system. Be careful whenever using hot water to avoid scalding injury. Certain
appliances such as dishwashers and automatic clothes washers may require
increasedtemperaturewater.Bysettingthethermostatonthiswaterheaterto
obtain the increased temperature water required by these appliances, you
may create the potential for scald injury. To protect against injury, install an
anti-scaldtempering valve inthe water system.This valve willreduce point of
discharge temperature by mixing cold and hot water in branch supply lines.
Suchvalvesareavailablefromthelocalplumbingsupplier.Pleaseconsultwith
a plumbing professional.
CAUTION
IfsweatfittingsaretobeusedDO NOT applyheattothenipplesontopofthe
waterheater.Sweatthetubingtotheadapterbeforefittingtheadaptertothe
waterconnections.Itisimperativethatheatisnotappliedtothenipplescontaining
aplasticliner.
WARNING
FAILURE TO INSTALL AND MAINTAIN A NEW, LISTED 3/4” X 3/4”
TEMPERATURE AND PRESSURE RELIEF VALVE WILL RELEASE THE
MANUFACTURER FROM ANY CLAIM THAT MIGHT RESULT FROM
EXCESSIVE TEMPERATURE AND PRESSURES.
WARNING
For protection against excessive temperatures and pressure, install
temperatureandpressureprotectiveequipmentrequiredbylocalcodes,
butnotlessthanacombinationtemperatureandpressurereliefvalve
certified by a nationally recognized testing laboratory that maintains
periodic inspection of production of listed equipment or materials as
meetingtherequirementsoftheStandardforReliefValvesandAutomatic
GasShutoffDevicesforHotWaterSupplySystems,ANSIZ21.22orthe
StandardCAN1-4.4.TemperatureandPressure andtheStandardCAN1-
4.4, Temperature, Pressure, Temperature and Pressure Relief Valves
andVacuumReliefValves. Thecombinationtemperatureandpressure
relief valve shall be marked with a maximum set pressure not to
exceed the maximum working pressure of the water heater. The
combinationtemperature and pressurerelief valve shallalso have an
hourly rated temperature steam BTU discharge capacity not less than
the hourly rating of the water heater.
Installthecombinationtemperatureand pressure relief valveintothe
opening provided and marked for this purpose on the water heater.
Note: Some models may already be equipped or supplied with a
combination temperature and pressure relief valve. Verify that the
combinationtemperatureandpressurereliefvalvecomplieswithlocal
codes. If the combination temperature and pressure relief valve does
not comply with local codes, replace it with one that does. Follow the
installation instructions above on this page.
Installadischarge line sothatwaterdischarged from thecombination
temperature and pressure relief valve will exit within six (6) inches
(15.2 cm)above,oranydistancebelowthestructuralfloorandcannot
contact any live electrical part. The discharge line is to be installed to
allowforcompletedrainage ofboththecombinationtemperatureand
pressure relief valve and the discharge line. The discharge opening
mustnot besubjected toblockage or freezing.DONOTthread,plug
orcapthedischargeline. Itisrecommendedthataminimumclearance
of four (4) inches (10.2 cm) be provided on the side of the water
heaterforservicingandmaintenanceofthecombinationtemperature
and pressure relief valve.
Donotplaceavalvebetweenthecombinationtemperatureandpressure
relief valve and the tank.
WARNING
Hydrogen gas can be produced in an operating water heater that
has not had water drawn from the tank for a long period of time
(generally two weeks or more). Hydrogen gas is extremely
flammable. Topreventthepossibilityofinjuryundertheseconditions,
we recommend the hot water faucet to be open for several minutes
at the kitchen sink before you use any electrical appliance which is
connected to the hot water system. If hydrogen is present, there
will be an unsual sound such as air escaping through the pipes as hot
water begins to flow. Do not smoke or have open flame near the
faucet at the time it is open.

9
RPV-I&S
GAS CONNECTIONS
Thegassupplylinesmustmeetall requirements of theNationalFuelGasCode
ANSI Z223.1-(Latest Edition) and/or in Canada CAN/CGA B149 Installation
Codes - (Latest Editions).
The minimum permissible gas supply pressure for the purpose of input
adjustment is 1.5" water column (.37 kPa) above the operating manifold
pressurefornaturalgasand1.0" (0.25 kPa)watercolumnforL.P.gas.Seethe
rating plate and combination gas control for the manifold pressure and gas
type.Themaximumpermissiblegassupplypressureis14.0"watercolumn(3.5
kPa) for natural gas and liquefied petroleum gases/propane gas.
1. Connect this water heater only to the type of gas (Natural or Propane
gas) as shown on the rating plate. Use clean 1/2 inch black iron pipe.
(Dirt and scale from the pipe can enter the combination control and
causeittomalfunction). Theinletgaslinemusthaveaminimumlength
of3" (7.6 cm) drip leg (sediment trap) installed as close to the water
heater’scombination gascontrol aspossible. A groundjoint union must
be installed in the gas supply line feeding the water heater to permit
servicingofthewaterheater. Compoundsusedonthethreadedjointsof
the gas piping must be resistant to the action of liquefied petroleum
gases/propane gas.
2. This water heater and its gas connection must be leak tested before
placing the water heater in operation. Check for gas leaks with a soap
and water solution and a brush or a commercial leak detector fluid.
NEVER USE A MATCH OR OPEN FLAME FOR TESTING!
3. While checking for leaks care must be taken to prevent solution from
contactingtheelectricalconnectionsatthecontrol.Ifelectricalconnections
at the control become wet, they must be thoroughly dried before
attempting to operate the water heater.
ELECTRICAL CONNECTIONS
All electrical wiring and connections must be in accordance with the National
Electric Code ANSI/NFPA No. 70 (latest edition), or the Canadian Electrical
Code C22.1 (latest edition) and any local codes which may apply. The water
heater must be electrically grounded.
If a flexible line cord and plug is permitted by local code, then provide a (3)
threewire groundingtype receptaclewithin 6feet (1.9m)ofthewaterheater
and use the flexible cord provided. Do not plug the line cord into a receptacle
that can have its power supply interrupted by a switch that is used to turn on
and off lights.
Ifwiringinconduitisrequired,removetheflexiblelinecordfromthejacketand
install a 1/2" electrical conduit connector and connect 110/120 volt power
source. Connect the hot, neutral, and ground leads of the electrical supply to
the corresponding locations that were connected to the flexible line cord.
The wiring diagram for the 48 gal, 65,000 BTU (181.7 L, 19.1 Kw/Hr), 65 gal,
65,000BTU(246.1L,19.1Kw/Hr)and75gal,76,000BTUinput(283.9L,22.3
Kw/Hr)modelsislocatedin(Figure11)onpage10. Thewiringdiagramforthe
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 are located in Figure 12 on page 11. Refer to the rating
plate located on the water heater for correct model identification.
GENERAL OPERATION
TO FILL THE WATER HEATER
1. Close the water heater drain valve by turning the stem clockwise.
2. Open the cold water supply shut-off valve.
3. Open several hot water faucets to allow air to escape from the system.
4. Whenasteady streamofwaterflows from thefaucets,the water heateris
filled.Closethefaucetsandcheckfor water leaks atthewaterheaterdrain
valve,combination temperatureand pressure reliefvalve andthe hot and
cold water connections.
TO DRAIN THE WATER HEATER
Should it become necessary to completely drain the water heater, make sure
you follow the steps below:
1. Shut off the gas supply to the water heater.
2. Turn off/disconnect all electric power to the water heater.
3. Close the cold water supply shut-off valve.
4. Open the drain valve on the water heater by turning the stem
counter-clockwise.Thedrainvalvehasthreadsontheendthatwillallowthe
connection of a standard hose coupling.
5. Open a hot water faucet to allow air to enter the system.
To refill the water heater, refer to “To Fill the Water Heater.”
CAUTION
Thewaterheaterandindividualshutoffvalvemustbedisconnectedfromthegas
supplypipingsystemduringanypressuretestingofthesystemattestpressuresin
excessof½psi(3.5kPa).Thewaterheatermustbeisolatedfromthegassupply
pipingsystembyclosingitsmanualshutoffvalveduringanypressuretestingof
thegassupply system attestpressuresequal to orlesthan½ psi (3.5kPa).The
supplylinemustbecappedwhennotconnectedtothewaterheater.
CAUTION
Turn off or disconnect the electrical power supply to the water heater
before servicing. Label all wires prior to disconnection when servicing
controls. Wiring errors can cause improper and dangerous operation.
Verify proper operation after servicing.
WARNING
Waterheatersareheatproducingappliances.Toavoiddamageorinjurytheremust
benomaterialsstoredagainstthewaterheaterorvent-airintakesystemandproper
caremustbetakentoavoidunnecessarycontact(especiallybychildren)withthe
water heater and vent-air intake components. UNDER NO CIRCUMSTANCES
SHALL FLAMMABLE MATERIALS, SUCH AS GASOLINE OR PAINT
THINNERBEUSEDORSTOREDINTHEVICINITYOFTHISWATERHEATER,
VENT-AIRINTAKE SYSTEM ORIN ANY LOCATIONFROM WHICH FUMES
COULD REACH THE WATER HEATER OR VENT-AIR INTAKE SYSTEM.

10
RPV-I&S
Figure 11

11
RPV-I&S
Figure 12

12
RPV-I&S
THERMOSTAT ADJUSTMENT
Thethermostatdialisadjustedtoapproximately120°Fwhenshippedfromthe
factory. When adjusting the thermostat, it should be remembered that lower
temperaturesettings aremore energy efficient.The thermostatcover, on the
rightsideofthegasvalve,mustberemovedwhenthethermostatisadjusted.
To adjust the thermostat turn the dial colckwise with a screwdriver until the
minimum acceptable temperture is set. It is suggested that the starting point
setting not exceed the 120°F (49°C) or “HOT” setting on the thermostat.
BURNER FLAME CHECK
Cast Iron Burner: At the time of installation and at periodic intervals (not
more than 6 months), a visual check of the main burner and pilot flames
shouldbemadetodetermineiftheyareburningproperly. Foridealoperation,
the gas and air must be properly proportioned. The proper air-gas mixture is
obtainedbyadjustingtheairshutteronthemixerfaceofthemainburner(See
Figure 14). Toadjustforproperburning,loosentheairshutternut(ifprovided),
rotateshutterto closetheopeningin the burnerthenslowly rotate theshutter
until the yellow tips disappear and the flame becomes blue. On 75 gallon
modelsfiredonLPGorpropane, adjusttheairshutterasdescribedaboveuntil
theyellowflameisminimized(note-theburnerflamemaycontainamixtureof
yellowandblue).Tightentheairshutternut. Toomuchairwillcausetheflame
toliftofftheburnerportsandcreatenoisyoperation. Toolittleairwillresultin
soot formation. The main burner flame should light smoothly from the pilot.
Steel Burner: These modelsareequipped with selfadjustingair mixtureand
do not have an adjustable air shutter (See Figure 14). At periodic intervals a
visualcheckofthemainburnerandpilotflamesshouldbemadetodetermine
iftheyareburningproperly. Themainburnerflameshouldlightsmoothlyfrom
the pilot.
CAUTION
Beforeadjustingthermostat(s),turnoffpowersupplytothewaterheater.
DANGER
Hotter water increases the risk of scald injury. Scalding may occur
withinfive(5)secondsatatemperaturesettingof135°F (57°C). To
protect against hot water injury, install an anti-scald tempering valve
in the water system. This valve will reduce point of discharge
temperature by mixing cold and hot water in branch water lines. A
licensed plumbing professional or local plumbing authority should be
consulted.
Note: Thiswaterheaterisequippedwithanenergycutoutdeviceto
preventoverheating. Shouldoverheatingoccurorthegassupplyfail
toshutoff,turnoffthemanualgascontrolvalvetotheapplianceand
call a qualified service technician.
Note: Wheneverthewaterheaterisfilledwithcoldwater,condensate
willformonthecooltanksurfaceanddropsofwaterwillfallonthehot
burnerandcombustionchambersurfacesproducinga“sizzling”noise.
Condensationisnormalanddoesnot indicate a leak.Itwilldisappear
when the tank becomes heated.
FOR YOUR SAFETY READ BEFORE LIGHTING
WARNING: Ifyoudonotfollowtheseinstructionsexactly,afireorexplosion
may result causing property damage, personal injury or loss of life.
A. This appliance is equipped with an ignition device which automatically
lights the pilot. Do not try to light the pilot by hand.
B. BEFORE OPERATING smellall aroundthe appliancearea forgas. Be
suretosmellnexttothefloorbecausesomegasisheavierthanairand
will settle on the floor.
WHAT TO DO IF YOU SMELL GAS
•Do not try to light any appliance.
•Do not touch any electric switch; do not use any telephone 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.
C. Use only your hand to push in or turn the gas control knob. Never use
tools.If theknob willnot pushin orturn byhand, don’ttry torepair it,
call aqualifiedservicetechnician.Forceorattemptedrepairmayresult
ina fireor explosion.
D. Donotusethisapplianceifanyparthasbeenunderwater,immediately
callaqualifiedservicetechniciantoinspecttheapplianceandtoreplace
any part of the control system and any gas control which has been
under water.
OPERATING INSTRUCTIONS
1. Stop! Read the safety information above on this label.
2. Turn off all electric power to appliance.
3. Set the thermostat to the lowest setting.
4. This appliance is equipped with on ignition device which automatically
lights the pilot. Do not try to light the pilot by hand.
5. Slide the switch on the left side of the gas valve to the “OFF” position.
6. Wait five (5) minutes to clear out any gas. Then smell for gas,
including near the floor. If you smell gas, STOP! Follow “B” in the
safetyinformationaboveonthistable.Ifyoudon’tsmellgas,gotothe
next step.
7. Slide the switch on the left side of the gas valve to the “ON” position.
8. Set thermostat to desired setting.
9. Turn on all electric power to the appliance.
10. Iftheappliancewillnotoperate,followtheinstructiolns“ToTurnOffGas
To Appliance” and call your service technician or gas supplier.
TO TURN OFF GAS TO APPLIANCE
1. Turn off all electric power to the appliance.
2. Set the thermostat to lowest setting.
3. Slide the switch on the left side of the gas valve to the “OFF” position.
Figure 13
TEMPERATURESETTING
APPROXIMATELY
120°F(49°C)
TEMPERATUREDIAL

13
RPV-I&S
MAINTENANCE
Thefollowingmaintenanceshouldbeperformedbyaqualifiedservicetechnician
at the minimum periodic intervals suggested below. In some installations, the
maintenanceintervalmaybemorefrequent depending on theamountofuse
and the operating conditions of the water heater. Regular inspection and
maintenanceofthewaterheaterandvent-airintakesystemwillhelptoensure
safe and reliable operation.
1. Annually check the operation of the thermostat.
2. The flow of combustion and ventilation air MUST NOT be restricted. Clear
thecombustionairopeningsofanydirt,dust,orotherrestrictions.WARNING!
The ventilation air system may be HOT.
3. At all times keep the water heater area clear and free from combustible
materials, gasoline and other flammable vapors and liquids.
4. Bi-annually conduct a visual check of the main and pilot burner flames to
determinethattheyareburningproperly. SeeBurnerFlameChecksection
on page 12. If sooting or other burner anomalies are evident, shut down
the water heater by turning off the gas per the instructions listed in this
manual or as listed on the water heater.
5. Annuallyremovetheinnerdoorandmainburnerassemblytocleanorifices
and related parts of any dirt or other foreign material. Inspect the burner
portsforobstructionsordebrisandcleanwithawirebrushasneeded.Wire
brushand/orvacuumcleanthecombustionchamberasneededtoremove
scale deposits and debris. NOTE: It is imperative for proper operation of
the water heater that the inner door be replaced in the original location.
7. At least once a year, check the combination temperature and pressure
reliefvalve toensure thatthe valvehas notbecome encrustedwith lime.
Lift the lever at the top of the valve several times until the valve seats
properly without leaking and operates freely.
8. Monthly drain off a gallon of water to remove silt and sediment.
9. Ifthecombination temperature andpressurereliefvalve on theappliance
discharges periodically, this may be due to thermal expansion in a closed
watersupplysystem.Contactthewatersupplierorlocalplumbinginspector
on how to correct this situation. Do not plug the combination
temperature and pressure relief valve outlet.
10. A combination sacrificial anode rod/hot water outlet nipple has been
installedtoextendtanklife.Theanoderodshouldbeinspectedperiodically
(every 2 years) and replaced when necessary to prolong tank life. Water
conditions in your area will influence the time interval for inspection and
replacement of the anode rod. Contact the plumbing professional who
installed the water heater or the manufacturer listed on the rating plate
for anode replacement information. The use of a water softener may
increasethespeedofanodeconsumption.Morefrequentinspectionofthe
anode is needed when using softened (or phosphate treated) water.
11. The induced draft blower has sealed motor bearings and does not require
adding oil.
Contactyoursupplierorplumbingprofessionalforreplacementpartsorcontact
the company at the address given on the rating plate of the water heater.
Provide the part name, model and serial numbers of the water heater when
ordering parts.
Figure 14
WARNING
Waterheatersareheatproducingappliances.Toavoiddamageorinjurythere
shallbenomaterialsstoredagainstthewaterheaterorvent-airintakesystem,
and proper care shall be taken to avoid unnecessary contact (especially by
children) with the water heater and vent-air intake system. UNDER NO
CIRCUMSTANCESSHALLFLAMMABLE 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.
IMPORTANT
The water heater should be inspected at a minimum annually by a
qualified service technician for damaged components and/or joints
not sealed. DO NOT operate this water heater if any part is found
damaged or if any joint is found not sealed.
WARNING
When lifting lever of the combination temperature and
pressure relief valve, hot water will be released under
pressure. Be careful that any released water does not result
in bodily injury or property damage.
CAUTION
FOR YOUR SAFETY, DO NOT ATTEMPT REPAIR OF COMBINATION GAS
CONTROL, BURNERS OR GAS PIPING. REFER REPAIRS TO A QUALIFIED
SERVICE TECHNICIAN.
WARNING! THIS WATER MAY BE HOT..

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THE FOLLOWING INSTRUCTIONS ARE FOR INSTALLATION OF:
GAS WATER HEATERS SUITABLE FOR WATER (POTABLE) HEATING AND SPACE HEATING
1. All piping components connected to this water heater for space heating applications must be suitable for use with potable water.
2. Toxic chemicals, such as those used for boiler treatment, must not be introduced into potable water used for space heating.
3. Thiswater heater must not be connected to an existing heating system or component(s) previously used with a non-potable water heating
appliance.
4. When the system requires water for space heating at temperatures higher than required for other means, a tempering valve must be installed to
temper the water for those uses in order to reduce the scald hazard potential.

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VENT PIPE PREPARATION AND JOINING
MostfailuresinPVC,CPVCorABSsystemsresultfromimproperpreparationand
joining of pipe and fittings. The guidelines below must be followed when
installing the venting system. If you have any question about the application
orinstallationofthePVC,CPVCorABSventingsystem,contactthemanufacturer,
supplier, or your plumbing professional.
1) Specific cleaners, solvents, primers and cements are available for PVC,
CPVCandABSpipe.Besurethesematerialsmatchthetypeofpipetobe
installed. Neveruseall-purposecements,commercialgluesandadhesives
or ABS cement to join PVC or CPVC pipe and fittings.
a) CLEANERS, SOLVENTS, PRIMERS AND CEMENTS ARE
FLAMMABLE. Do not store or use these materials near
heatoropenflame,orinthevicinityofotherappliances.
2) Use proper cutting, deburring and applicator tools to ensure proper
preparation and joining of pipe and fittings.
a) Cutting Tools
i) Asquare cutmust beachieved witha miterbox sawor pipe
cutter to ensure a proper mating with the female. If a pipe
cutterisused,the burr createdattheouteredge of thepipe
must be removed.
b) Deburring Tools
i) A file, knife or plastic deburring tool can be used to remove
burrs. Burrs must be removed from the inside and outside
edges of the pipe to ensure a proper seal.
c) Applicator Tools
i) A pure bristle paintbrush or roller may be used to apply
cement. Prompt application of the cement is important due
its fast drying properties.
3) Inspection, Cleaning, Priming and Cementing
a) Inspect the pipe inside and out for dirt, dust, moisture or grease
etc. Check pipe and fittings for splits or cracks and replace if
necessary.
b) Cleanpipeand fittings areimperativeforproper joining. Following
cuttinganddeburring,wipeawayanyforeignmaterialwithaclean
dry rag. If wiping fails to thoroughly clean surfaces, chemical
cleaning is necessary.
c) Primer must be applied to the pipe surface and fitting socket with
anaturalbristlebrush.ThisservestosoftenandpreparethePVCor
CPVC for cementing.
d) Cementingmustbedonequicklytoavoidover-dryingbeforejoining.
i) Apply one coat to the outside end of the pipe at a width
slightly greater than the depth of the socket.
ii) Apply a coat around the inside of the fitting socket.
iii) Apply a second coat around the end of the pipe.
4) Joining
a) Joints should be made immediately after cement is applied.
b) Afterfully inserting pipeintofitting socket, givepipeabout ¼turn
tohelp spread cementevenly. Hold joint togetherfor about 15to
20 seconds.
c) Remove excess cement from around pipe and fitting with a clean
rag.
d) Cement drying times may vary. Be sure to allow for the
recommended drying time before disturbing joints.
For more specific and detailed information about the above, contact the
manufacturer, supplier, or competent professional.

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Printed in USA