Electrolux SBB800S-1 User manual

EN CONDENSING TANKLESS GAS WATER HEATER Installation Manual
SP CALENTADOR A GAS TIPO CONDENSADO Manual de Instalación
*SBB800S*
SBB800S-1
Rev. 09/13 5995615126 September 2013

Installation Manual
CONDENSING TANKLESS GAS WATER HEATER
EN18WI30LS
EP18WI30LS
Potential dangers from accidents during installation and use are divided into the following three
categories. Closely observe these warnings, they are critical to your safety.
Prohibited Disconnect
Power Ground Be sure to do
WARNING: If the information in this manual is not followed exactly, a re or explosion may result
causing property damage, personal injury or death.
DANGER indicates an imminently hazardous situation which,
if not avoided, will result in death or serious injury.
WARNING indicates a potentially hazardous situation which,
if not avoided, could result in death or serious injury.
CAUTION indicates a potentially hazardous situation which,
if not avoided, may result in minor or moderate injury.
DANGER
WARNING
CAUTION
Requests to Installers
r*OPSEFSUPVTFUIFXBUFSIFBUFSTBGFMZSFBEUIJTJOTUBMMBUJPONBOVBMDBSFGVMMZBOEGPMMPXUIFinstallation instructions.
r'BJMVSFTBOEEBNBHFDBVTFECZFSSPOFPVTXPSLPSXPSLOPUBTJOTUSVDUFEJOUIJTNBOVBMBSFOPUcovered by the warranty.
r
$IFDLUIBUUIFJOTUBMMBUJPOXBTEPOFQSPQFSMZJOBDDPSEBODFXJUIUIJT*OTUBMMBUJPO.BOVBMVQPODPNQMFUJPO
r "GUFSDPNQMFUJOHJOTUBMMBUJPOQMFBTFFJUIFSQMBDFUIJT*OTUBMMBUJPO.BOVBMJOBQMBTUJDQPVDIBOEattach it to the side of the water heater (or the inside of the pipe cover or recess box if applicable),
or hand it to the customer to retain for future reference. Also, be sure to ll in all of the required
items on the registration/warranty card and to hand the registration/warranty card to the customer
BMPOHXJUIUIF6TFBOE$BSF.BOVBM
CAUTION
'0364&*/3&4*%&/5*"-"11-*$"5*0/4*/5)&6/*5&%45"5&40/-:/05*/5&/%&%'0364&*/$"/"%"03.&9*$0Installation must conform with local codes, or in the absence of local codes,
UIF/BUJPOBM'VFM(BT$PEF"/4*;/'1"MBUFTUFEJUJPO
&MFDUSPMVY)PNF1SPEVDUT*ODSFTFSWFTUIFSJHIUUPEJTDPOUJOVFPSchange at any time, the designs and/or specications of its products
without notice.
Low NOx
Approved by
4$"2.%
OH+PSQQN(Natural Gas Only)

1.
Included Accessories
The following accessories are included with the unit.
$IFDLGPSBOZNJTTJOHJUFNTCFGPSFTUBSUJOHJOTUBMMBUJPO
Q’ty
ShapePart
Anchoring Screw 1
each
Part Shape Q’ty
1
Remote Controller
(See page 31)
Remote Controller
$PSEGUN3$$03%1
2.
Optional Accessories
The accessories listed below are not included with
the units, but may be necessary for installation.
$POUBDU&MFDUSPMVY)PNF1SPEVDUT*ODBUGPSGVSUIFSJOGPSNBUJPO
6TFBOE$BSF.BOVBM
8BSSBOUZ*OTUBMMBUJPO.BOVBM
(this document)
ShapePartPart Shape
2VJDL$POOFDU$PSE58)2$$03%NN17$5FSNJOBM58))03$0/$
NNNN
)PSJ[POUBM)PPETermination
58))03)00%
NNNN
7FSUJDBM3BJO$BQTermination
58)7&35$"1
)PSJ[POUBM*OTUBMMBUJPO,JU58))03,*5
*TPMBUJPO7BMWFT
1SFTTVSF3FMJFG7BMWF
)PSJ[POUBM)PPETermination,
47$POWFSTJPO,JU(47$,)
7FSUJDBM*OTUBMMBUJPO,JU58)7&35,*5
*TPMBUJPO7BMWFT
1SFTTVSF3FMJFG7BMWF
7FSUJDBM3BJO$BQTermination,
47$POWFSTJPO,JU(47$,)
/FVUSBMJ[FS,JU58)/&653"-

3
G
2VJDL$POOFDUCord
Remote Controller Cord Gas Supply Piping
Cold Water Supply
)PU8ater
Remote Controller
TFSNJOBM#MPDLCord
Connector
Cord
Connector
3.
Quick Connect Multi System Installation
r5IF2VJDL$POOFDU.VMUJ4ZTUFNBMMPXTUIFJOTUBMMBUJPOPGUXPVOJUTUPHFUIFSVUJMJ[JOHPOMZUIF2VJDLConnect Cord.
Typical Plumbing
* When connecting two units, use only a
single remote controller.
Note: Connect the remote
controller to only one
of the units.
System Diagram
r*OTVMBUFUIFIPUXBUFSQJQJOHUPQSFWFOUIFBUMPTT*OTVMBUFBOEBQQMZIFBUJOHNBUFSJBMTUPthe cold water supply piping to prevent heat loss and freezing of pipes when exposed to
excessively cold temperatures.
Union
Make this distance as short
as possible.
* The hot water temperature
will become unstable as the
pipe length increases.
Distance at center: 20.3 - 36.3 in. (515 - 922mm)
Quick Connect Cord
Union
Gas Valve
Union
Shutoff Valve
Shutoff Valve
Hot Water
Shutoff Valve
Cold Water
Distance on sides
2 - 18 in. (50 - 457mm)
Leave enough clearance around the plumbing to
apply insulation. It will be necessary to add
bends to the piping to ensure that this clearance
is available.
Size the piping to allow for the
maximum ow rates of the units.
The backow preventer is
put up before it diverges.
5IF2VJDL$POOFDU$PSEJTGUNMPOH*OTUBMMUIFVOJUTNNBQBSUGSPNFBDI
other to ensure the cord will be able to reach between the units. (See Typical Plumbing diagram).
(If the distance between the two units is too great, not only will the cord not be able to reach,
but the water temperature may also become unstable because of the difference in pipe length
between the two units).

Check the Gas
r$IFDLUIBUUIFSBUJOHQMBUFJOEJDBUFTUIFcorrect type of gas.
r$IFDLUIBUUIFHBTTVQQMZMJOFJTTJ[FEGPS180,000 Btuh.
Check the Power
r5IFQPXFSTVQQMZSFRVJSFEJT7"$BU)[6TJOHUIFJODPSSFDUWPMUBHFNBZSFTVMUJOàSFPSFMFDUSJDTIPDLUse Extreme Caution if Using With a Solar Pre-Heater
r6TJOHUIJTVOJUXJUIBTPMBSQSFIFBUFSDBOMFBEUPVOQSFEJDUBCMFPVUQVUUFNQFSBUVSFTBOEpossibly scalding. If absolutely necessary, use mixing valves to ensure output temperatures do
OPUHFUUPTDBMEJOHMFWFMT%POPUVTFBTPMBSQSFIFBUFSXJUIUIFRVJDLDPOOFDUNVMUJTZTUFN4. Before Installation
Checkup
r$IFDLUIFàYJOHCSBDLFUTBOEWFOUQJQFZFBSMZGPSEBNBHFPSXFBS3FQMBDFJGOFDFTTBSZDANGER
Do Not Use Equipment for Purposes Other Than Those Specified
r%POPUVTFGPSPUIFSUIBOJODSFBTJOHUIFUFNQFSBUVSFPGUIFXBUFSTVQQMZBTVOFYQFDUFEBDDJEFOUTmay occur as a result.
Check Water Supply Quality
r*GUIFXBUFSTVQQMZJTJOFYDFTTPGHSBJOTQFSHBMMPONH-PGIBSEOFTTBDJEJDPSPUIFSXJTFimpure, treat the water with approved methods in order to ensure full warranty coverage.
WARNING
CAUTION
Precautions on Vent Pipe Replacement
r5IFWFOUTZTUFNXJMMBMNPTUDFSUBJOMZOFFEUPCFSFQMBDFEXIFOUIJTBQQMJBODFJTCFJOHJOTUBMMFE0OMZVTFWFOUNBUFSJBMTUIBUBSFTQFDJàFEJOUIJT*OTUBMMBUJPO.BOVBMGPSVTFPOUIJTBQQMJBODF3FGFSUPUIF7FOU1JQF*OTUBMMBUJPOTFDUJPOGPSEFUBJMT*G17$$17$PS$BUFHPSZ*7MJTUFEQJQFJTBMSFBEZJOTUBMMFEDIFDLGPSQVODUVSFTDSBDLTPSCMPDLBHFTBOEDPOTVMUXJUIUIFWFOUQJQFNBOVGBDUVSFSbefore reusing.
*NQSPQFSWFOUJOHNBZSFTVMUJOàSFTQSPQFSUZEBNBHFPSFYQPTVSFUP$BSCPO.POPYJEFSnow Precaution
r*GUIJTQSPEVDUXJMMCFJOTUBMMFEJOBOBSFBXIFSFTOPXJTLOPXOUPBDDVNVMBUFQSPUFDUUIFWFOUUFSNJOBUJPOGSPNCMPDLBHFCZTOPXESJGUTPSEBNBHFGSPNTOPXGBMMJOHPGGPGSPPGT

5. Choosing Installation Site
-PDBUFUIFBQQMJBODFJOBOBSFBXIFSFMFBLBHFGSPNUIFVOJUPSDPOOFDUJPOTXJMMOPUSFTVMUJOEBNBHFto the area adjacent to the appliance or to the lower oors of the structure. When such locations
cannot be avoided, it is recommended that a suitable drain pan, adequately drained, be installed
under the appliance. The pan must not restrict combustion air ow.
rLocate the vent terminal so that there are no obstacles around the termination and so that exhaust
can't accumulate. Do not enclose the termination with corrugated metal or other materials.
r"WPJEQMBDFTXIFSFàSFTBSFDPNNPOTVDIBTUIPTFXIFSFHBTPMJOFbenzene and adhesives are handled, or places in which corrosive gases
(ammonia, chlorine, sulfur, ethylene compounds, acids) are present.
6TJOHUIFJODPSSFDUWPMUBHFNBZSFTVMUJOàSFPSDSBDLJOHr"WPJEJOTUBMMBUJPOJOQMBDFTXIFSFEVTUPSEFCSJTXJMMBDDVNVMBUF%VTUNBZCMPDLUIFBJSTVQQMZPQFOJOHDBVTJOHUIFQFSGPSNBODFPGUIFdevice fan to drop and incomplete combustion to occur as a result.
r"WPJEJOTUBMMBUJPOJOQMBDFTXIFSFTQFDJBMDIFNJDBMBHFOUT(e.g., hair spray or spray detergent) are used.
Ignition failures and malfunction may occur as a result.
r$BSCPO.POPYJEF1PJTPOJOH)B[BSE%POPUJOTUBMMUIJTXBUFSIFBUFSJOBmobile home, recreational vehicle or on a boat.
r5IFXBUFSIFBUFSJTEFTJHOFEGPSJOEPPSJOTUBMMBUJPOPOMZ/FWFSJOTUBMMJUoutdoors or in a bathroom, it may be damaged or a re may be caused.
r$POTVMUXJUIUIFDVTUPNFSDPODFSOJOHUIFMPDBUJPOPGJOTUBMMBUJPOrInstall the water heater in an area that allows for the proper clearances
to combustible and noncombustible construction. Consult the rating
plate on the appliance for proper clearances.
r%POPUJOTUBMMUIFXBUFSIFBUFSJOBQMBDFXIFSFJUNBZCFUISFBUFOFECZfalling objects, such as under shelves.
r5IFXBUFSIFBUFSNVTUCFJOTUBMMFEJOBQMBDFXIFSFTVQQMZBOEFYIBVTUpipes can be installed as directed.
r%POPUJOTUBMMUIFXBUFSIFBUFSXIFSFUIFFYIBVTUXJMMCMPXPOPVUFSwalls or material not resistant to heat. Also consider the surrounding
trees and animals.
The heat and moisture from the water heater may cause discoloration
of walls and resinous materials, or corrosion of aluminum materials.
DANGER
WARNING
CAUTION
Prohibited
Prohibited

6r"WPJEJOTUBMMBUJPOBCPWFHBTSBOHFTPSTUPWFTr"WPJEJOTUBMMBUJPOCFUXFFOUIFLJUDIFOGBOBOETUPWF*GPJMZfumes or a large amount of steam are present in the installation
MPDBUJPOUBLFNFBTVSFTUPQSFWFOUUIFGVNFTBOETUFBNGSPNentering in the equipment.
r*OTUBMMJOBMPDBUJPOXIFSFUIFFYIBVTUHBTGMPXXJMMOPUCFaffected by fans or range hoods.
r5BLFDBSFUIBUOPJTFBOEFYIBVTUHBTXJMMOPUBGGFDUOFJHICPST"WPJEJOTUBMMBUJPOPODPNNPOXBMMTBTUIFVOJUXJMMNBLFTPNFoperational noises while it is running.
r#FGPSFJOTUBMMJOHNBLFTVSFUIBUUIFFYIBVTUáVFUFSNJOBUJPOXJMMIBWFUIFQSPQFSDMFBSBODFTBDDPSEJOHUPUIF/BUJPOBM'VFM(BT$PEF"/4*;
Be sure to do
Prohibited
Prohibited
CAUTION
State of California: The water heater must be braced, anchored or strapped to avoid moving during
BOFBSUIRVBLF$POUBDUMPDBMVUJMJUJFTGPSDPEFSFRVJSFNFOUTJOZPVSBSFBPSDBMM&MFDUSPMVY)PNF1SPEVDUT*ODBUBOESFRVFTUJOTUSVDUJPOT5IF$PNNPOXFBMUIPG.BTTBDIVTFUUT5IFXBUFSIFBUFSDBOCFVTFEGPSIPUXBUFSPOMZBOEOPUJOBcombination of domestic and space heating.
'PS7FOUJOH.BOVGBDUVSFST3FRVJSFNFOUTDBMM&MFDUSPMVY)PNF1SPEVDUT*ODBUPSvisit us at www. electroluxappliances. com.

6. Installation Clearances
#FGPSFJOTUBMMJOHDIFDLGPSUIFGPMMPXJOHInstall in accordance with relevant building and mechanical codes, as well as any local, state or
OBUJPOBMSFHVMBUJPOTPSJOUIFBCTFODFPGMPDBMBOETUBUFDPEFTUPUIF/BUJPOBM'VFM(BT$PEF"/4*;/'1"mMBUFTUFEJUJPO
WARNING
Item
Distance from combustibles
r.BJOUBJOUIFGPMMPXJOHDMFBSBODFTfrom both combustible and
OPODPNCVTUJCMFNBUFSJBMT$IFDLIllustration
r*GQPTTJCMFMFBWFNNPSNPSFPO
either side of the unit to facilitate inspection.
r*GQPTTJCMFMFBWFNNPSNPSFJOfront of the unit to facilitate maintenance
and service if necessary.
r*GQPTTJCMFMFBWFNNPSNPSF
above and below the vent pipe to facilitate
inspection and repair if necessary.
Securing of space for
repair/inspection
NN
or more
Distance from
the side NNor more
NNor more NNor more
NNPSNPSFNNPSNPSFNNor more
NNor more
<When using indoor air for combustion>
r*GUIFVOJUXJMMCFJOTUBMMFEJOUIFWJDJOJUZPGBQFSNBOFOULJUDIFOSBOHFPSTUPWFUIBUhas the possibility of generating steam
that contains fats or oils, use a *dividing
plate or other measure to ensure that the
unit is not exposed to air containing such
impurities.
* The dividing plate should be of
noncombustible material of a width
greater than the water heater.
Exhaust hood
Range
Dividing plate Water
heater
$PPLJOH&RVJQNFOU

8
DescriptionRef
A=
Clearance above grade, veranda, porch, deck, or balcony
B=
Clearance to window or door that may be opened
C=
Clearance to permanently closed window
D=
Vertical clearance to ventilated soffit located above the
terminal within a horizontal distance of 2 feet (61 cm)
from the center line of the terminal
E=
Clearance to unventilated soffit
F=
Clearance to outside corner
G=
Clearance to inside corner
H=
Clearance to each side of center line extended above
meter/regulator assembly
I=
Clearance to service regulator vent outlet
J=
Clearance to nonmechanical air supply inlet to building or
the combustion air inlet to any other appliance
K=
Clearance to a mechanical air supply inlet
L=
Clearance above paved sidewalk or paved driveway located
on public property
Clearance under veranda, porch, deck, or balcony
M=
1In accordance with the current ANSI Z223.1 / NFPA 54 National Fuel Gas Code
* Clearance in accordance with local installation codes and the requirements of the gas supplier.
bClearance to opposite wall is 24 inches (60 cm).
12 in (30 cm)
*
*
*
*
*
*
*
*
3 ft (91 cm) above if within
10 ft (3 m) horizontally
*
12 in (30 cm)
12 in (30 cm)
US Direct Vent Installations 1
Vent Terminal
D
E
B
B
F
B
A
G
H
I
CB
M
K
J
B
B
L
Air Supply Inlet
Area Where Terminal
is Not Permitted
A
Clearance Requirements from Vent Terminations to Building Openings
<When supplying combustion air from the outdoors (Direct Vent)>
"MMDMFBSBODFSFRVJSFNFOUTBSFJOBDDPSEBODFXJUI"/4*;BOEUIF/BUJPOBM'VFM(BT$PEF"/4*;

9
DescriptionRef
A=
Clearance above grade, veranda, porch, deck, or balcony
B=
Clearance to window or door that may be opened
C=
Clearance to permanently closed window
D=
Vertical clearance to ventilated soffit located above the
terminal within a horizontal distance of 2 feet (61 cm)
from the center line of the terminal
E=
Clearance to unventilated soffit
F=
Clearance to outside corner
G=
Clearance to inside corner
H=
Clearance to each side of center line extended above
meter/regulator assembly
I=
Clearance to service regulator vent outlet
J=
Clearance to nonmechanical air supply inlet to building or
the combustion air inlet to any other appliance
K=
Clearance to a mechanical air supply inlet
L=
Clearance above paved sidewalk or paved driveway located
on public property
Clearance under veranda, porch, deck, or balcony
M=
1In accordance with the current ANSI Z223.1 / NFPA 54 National Fuel Gas Code
* Clearance in accordance with local installation codes and the requirements of the gas supplier.
bClearance to opposite wall is 24 inches (60 cm).
*
*
*
*
*
*
*
*
3 ft (91 cm) above if within
10 ft (3 m) horizontally
*
12 in (30 cm)
US Non-Direct Vent Installations 2
Vent Terminal
D
E
B
B
F
B
A
G
H
I
CB
M
K
J
B
B
L
Air Supply Inlet
Area Where Terminal
is Not Permitted
A
4 ft (1.2 m) below or to side of opening;
1 ft (30 cm) above opening
4 ft (1.2 m) below or to side of opening;
1 ft (30 cm) above opening
Clearance Requirements from Vent Terminations to Building Openings
<When supplying combustion air from the indoors (Non-Direct Vent)>
"MMDMFBSBODFSFRVJSFNFOUTBSFJOBDDPSEBODFXJUI"/4*;BOEUIF/BUJPOBM'VFM(BT$PEF"/4*;

10
7. Installation
Securing to the wall
Illustration
$IFDL%SJMMIPMFTGPSUIFSFNBJOJOHGPVSTDSFXT)BOHUIFVOJUBHBJOCZUIFàSTUTDSFXBOEUIFOinsert and tighten the remaining four screws.
5BLFXBUFSQSPPàOHNFBTVSFTTPUIBUXBUFSEPFTnot enter the building from screws mounting the
device.
r.BLFTVSFUIFVOJUJTJOTUBMMFETFDVSFMZTPUIBUJUXJMMOPUGBMMPSNPWFEVFUPWJCSBUJPOTPSFBSUIRVBLFT%SJMMBTJOHMFTDSFXIPMFNBLJOHTVSFUPIJUBTUVE*OTFSUBOEUJHIUFOUIFTDSFXBOEIBOHUIFVOJUCZUIFVQQFSXBMMNPVOUJOHCSBDLFU3. Determine the positions for the remaining four screws
UXPGPSUIFUPQCSBDLFUBOEUXPGPSUIFCPUUPNBOEremove the unit.
r5IFXFJHIUPGUIFEFWJDFXJMMCFBQQMJFEUPUIFXBMM*GUIFTUSFOHUIPGUIFXBMMJTOPUTVGàDJFOUreinforcement must be done to prevent the transfer of vibration.
r%POPUESPQPSBQQMZVOOFDFTTBSZGPSDFUPUIFEFWJDFXIFOJOTUBMMJOH*OUFSOBMQBSUTNBZbe damaged and may become highly dangerous.
r*OTUBMMUIFVOJUPOBWFSUJDBMXBMMBOEFOTVSFUIBUJUJTMFWFM
-PDBUJOH4DSFX)PMFT.PVOUJOHStructure
r8IFOJOTUBMMJOHXJUICBSFIBOETUBLFDBVUJPOUPnot inict injury.
r#FDBSFGVMOPUUPIJUFMFDUSJDBMXJSJOHHBTPSXBUFSpiping while drilling holes.
Item
CAUTION
Be sure to do
.PVOUJOH#SBDLFU(upper)
-PDBUJPOPG4DSFX)PMF-PDBUJOH4DSFX)PMFT
Installations at Elevations
"CPWFGU
r"EKVTUUIFEJQTXJUDIFTBTJMMVTUSBUFEJOUIFUBCMFUPthe right if this water heater is installed at an altitude
PGGUNPSIJHIFSr%JTDPOOFDUQPXFSUPUIFXBUFSIFBUFSCFGPSFDIBOHJOHUIFEJQTXJUDIFT'BJMVSFUPQFSGPSNUIJTTUFQXJMMSFTVMUJOBDPEFEJTQMBZFEPOUIFSFNPUFDPOUSPMMFSand a cease in operation. If this occurs, disconnect,
then reconnect power to the water heater to reset
the system.
Note : Please refer to page 31 for the location of the
EJQTXJUDICBOLAnchoring Screw
* Do not change any other dipswitches.
* High elevation adjustment.
65
2,001 - 4,000 ft (611 - 1,220m)
0 - 2,000 ft (0 - 610m)
ON= OFF=
4,001 - 6,000 ft (1,221 - 1,830m)
6,001 - 8,000 ft (1,831 - 2,440m)

11
Filling the condensate trap with water
The condensate trap can be lled before connecting the vent pipe.
Filling the condensate trap before vent pipe installation.
DANGER
1SJPSUPJOJUJBMTUBSUVQNBLFTVSFUIBUZPVàMMUIFDPOEFOTBUFUSBQXJUIXBUFSThis is to prevent dangerous exhaust gases from entering the building.
'BJMVSFUPàMMUIFDPOEFOTBUFUSBQDPVMESFTVMUJOTFWFSFQFSTPOBMJOKVSZPSEFBUI
Please follow one of the procedures described below to ensure that the condensate trap is lled with water.
'JMMUIFDPOEFOTBUFUSBQCZQPVSJOHBQQSPYP[NMPGXBUFSJOUPUIFFYIBVTUBDDFTTPSZPOUIFUPQof the appliance as illustrated below.
Or, if the vent pipe has already been installed:

"GUFSJOTUBMMJOHUIFESBJOQJQFNBLFTVSFUIBUUIFBSFBBSPVOEUIFBQQMJBODFJTXFMMWFOUJMBUFEPQFOBXJOEPXor a door if necessary.
Then, operate the unit and verify that condensate is coming out of the drain pipe.
(During normal use of the water heater, condensate will begin to discharge from the drain pipe within
NJOVUFTPGVTF)PXFWFSEFQFOEJOHPOUIFTFBTPOBOEPSJOTUBMMBUJPOTJUFDPOEJUJPOTJUNBZUBLFMPOHFS
/PUF5IFDPOEFOTBUFEJTDIBSHFEGSPNUIFXBUFSIFBUFSIBTBQ)MFWFMPGBQQSPYJNBUFMZ
If required by local code, the condensate must be neutralized prior to disposal into the sewer system.
3FGFSUPQBHFTGPSBEEJUJPOBMEFUBJMT
30 oz.
NM
*OUBLFExhaust

Maximum Vent Lengths
rThis appliance has been designed to be vented
XJUIFJUIFSNNPSNN17$PS$17$QJQF
Do not exceed the following maximum vent lengths:
* Not including the termination.
r.BJOUBJOUIFTBNFWFOUQJQFEJBNFUFSGSPNUIFheater ue to the vent termination. The exhaust
BOEJOUBLFQJQFTNVTUCFUIFTBNFWFOUQJQFdiameter.
8. Vent Pipe Installation
WARNING
Be sure to do
$"3#0/.0/09*%&10*40/*/('PMMPXBMMWFOUTZTUFNSFRVJSFNFOUTJOBDDPSEBODFXJUISFMFWBOUMPDBMPSTUBUFSFHVMBUJPOPSJOUIFBCTFODFPGMPDBMPSTUBUFDPEFJOUIF64UPUIF/BUJPOBM'VFM(BT$PEF"/4*;/'1"mMBUFTUFEJUJPONo. of Elbows
.BY4USBJHIU7FOU-FOHUI
hNhNhNhNhNhNhNhNNNhNhNPipe diameter NNNNr6OEFSOPSNBMDPOEJUJPOTUIJTBQQMJBODFXJMMnot produce an exhaust flue temperature
JOFYDFTTPG'$BOETDIFEVMF17$QJQFNBZCFVTFEBTUIFWFOUNBUFSJBM*GSFRVJSFECZMPDBMDPEFTDIFEVMFPS$17$NBZBMTPCFVTFEPOUIJTBQQMJBODF3FGFSUPQBHFGPSBEEJUJPOBMSFRVJSFNFOUTr.BLFTVSFUIFWFOUTZTUFNJTHBTUJHIUBOEXJMMOPUMFBLr4VQQPSUUIFWFOUQJQFXJUIIBOHFSTBUSFHVMBSintervals as specied by these instructions or
the instructions of the vent manufacturer.
r%POPUDPNNPOWFOUPSDPOOFDUNPSFUIBOone appliance to this venting system.
r
The total vent length including horizontal & vertical
vent runs should be no less than 3' (0.9m).
r%POPUTUPSFIB[BSEPVTPSGMBNNBCMFsubstances near the vent termination and
DIFDLUIBUUIFUFSNJOBUJPOJTOPUCMPDLFEJOany way.
r4UFBNPSDPOEFOTFEXBUFSNBZDPNFPVUfrom the vent termination. Select the location
for the termination so as to prevent injury or
property damage.
r*GTOPXJTFYQFDUFEUPBDDVNVMBUFUBLFDBSFthe end of the pipe is not covered with snow
or hit by falling lumps of snow.
General Requirements
Clearances
17$PS$17$IBTCFFOBQQSPWFEGPSVTFPOUIJTappliance with zero clearance to combustibles.

13
0
3
6
9
12
15
18
21
24
27
30
32
35
38
41
44
47
50
53
56
59
0.00
0.90
1.80
2.70
3.60
4.50
5.40
6.30
7.20
8.10
9.00
9.90
10.80
11.70
12.60
13.50
14.40
15.30
16.20
17.10
18.00
m 10 2 3 4 5 6ft
Vent length Elbows
0
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
Number of
pieces**
1
1
1
2
3
3
3
1
1
1
3
3
3
1
1
3
3
1
1
1
3
3
3
1
1
3
3
1
1
3
3
1
1
1
3
3
3
1
1
3
3
1
1
3
3
1
1
3
3
1
1
1
3
3
3
1
1
3
3
1
1
3
3
1
1
3
3
1
1
3
3
4
4
4
4
4
4
4
4
4
2
2
2
2
2
2
2
2
24
4
4
4
4
4
4
4
4
2
2
2
2
2
2
2
2
4
4
2
2
2 4
4
4
4
4
4
4
4
4
2
2
2
2
2
2
2
2
4
2
24
4
4
4
4
4
4
4
4
2
2
2
2
2
2
2
2
4
2
2 4
4
4
4
4
4
4
4
4
2
2
2
2
2
2
2
2
4
2
24
4
4
4
4
4
4
4
4
2
2
2
2
2
2
2
2
4
2
24
4
4
4
4
4
4
4
4
2
2
2
2
2
2
2
2
4
2
13
24
Short length using 4" (100mm) pipe
Short length using 3" (75mm) pipe
Long length using 3" (75mm) pipe
Long length using 4" (100mm) pipe
Short length using 4" (100mm) pipe
Short length using 3" (75mm) pipe
Long length using 3" (75mm) pipe
Long length using 4" (100mm) pipe
**Table assumes straight vent pieces are 3’ (0.9m) each.
Shorter or longer vent pieces may also be used up to the maximum allowed
vent length.
* Do not change any other dipswitches.
* Vent length condition.
1
7 8
ON= OFF=
2
3
4
The power must be unplugged when
adjusting the dip switches to switch the
airow amount.
5IFVOJUDBOCFBEKVTUFEUPBDDPNNPEBUFMPOHFSWFOUSVOTSFGFSUPUIFCFMPXUBCMFUPàOEUIFmaximum vent length based on the number of elbows. Adjust the dip switches according to the vent
condition noted in the tables below.
Note: By default, the unit has been set to the "short length" condition. When adjusting the dip
TXJUDIFTGPSMPOHFSWFOUSVOTUIF#56)JOQVUPGUIFBQQMJBODFXJMMCFSFEVDFECZVQUP
Maximum Vent Length Adjustment Dipswitches
5XPFMCPXTNBYJNVNMFOHUIGUN(with dip switches set at "short length" condition)
5XPFMCPXTNBYJNVNMFOHUIGUN(with dip switches set at "long length" condition)
<.BYJNVN7FOU-FOHUI&YBNQMF>r%JTDPOOFDUQPXFSUPUIFXBUFSIFBUFSCFGPSFDIBOHJOHUIFEJQTXJUDIFT'BJMVSFUPQFSGPSN
UIJTTUFQXJMMSFTVMUJOBDPEFEJTQMBZFEPOUIFSFNPUFDPOUSPMMFSBOEBDFBTFJOPQFSBUJPO .
If this occurs, disconnect, then reconnect power to the water heater to reset the system.
/PUF1MFBTFSFGFSUPQBHFGPSUIFMPDBUJPOPGUIFEJQTXJUDICBOL.BYJNVN7FOU-FOHUI$POàHVSBUJPOT


WARNING
! # " # !!$!!    "
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
Vertical Vent Termination- PVC/CPVC Materials Only
Horizontal Vent Termination- PVC/CPVC Materials Only
Hanger
Straps
**1' mini
* Not supplied with water heater,
order separately.
mum recommended,
but not required.
3 ft. Min.
FirestopFirestop
Firestop/Support
Roof
Flashing
Roof
Flashing
Hanger
Strap
**1'
Minimum
**1'
Minimum
Support
Slope
Slope vent
Upwards
Intake
Exhaust
vent
Upwards
Intake Exhaust
12" over maximum
snow level
or 24", whichever
is greater.
12" over maximum
snow level
or 24", whichever
is greater.
Insert Bird
Screen* in
End of
90 Elbow
Storm
Collar
Storm
Collar
**1' minimum recommended,
but not required.
*
Not supplied with water heater,
order separately.
When choosing intake and exhaust terminations, you must use the
same type of elbow (i.e. both 90° elbows).
This will help with proper combustion by putting both terminations in
the same pressure zone.
When choosing intake and exhaust terminations, you must use the
same type of elbow (i.e. both 90° elbows).
This will help with proper combustion by putting both terminations in
the same pressure zone.
Insert Bird
Screen* in
End of
90 Elbow
Insert Bird Screen*
in End of 90 Elbow
3” Min.
AAAAAAAAAAAAAAAAA
As illustrated on the left, make sure to keep a distance of 3' (0.9m)
or wider between the intake and exhaust when installing the vent piping.
* If 3’ (0.9m) distance between Intake and Exhaust cannot be ensured,
the installation can be carried out only in the installation method shown in page 17.
The TWHHORHOOD termination may be used in place of elbows as
the horizontal vent terminations. It is not necessary to use bird screens
with the TWHHORHOOD termination. See page 17 for more info.
Terminate at least 12" (300mm) above grade or above snow line.
Terminate at least 7' (2.1m) above a public walkway, 6' (1.8m)
from the combustion air intake of any appliance, and 3' (0.9m)
from any other building opening, gas utility meter, service regulator etc.
Terminate at least 3' (0.9m) above any forced air inlet within
10' (3m) , 1' (0.3m) below, 1' (0.3m) horizontally from or 1' (0.3m)
above any door, window, or gravity air inlet into any building per
National Fuel Gas Code ANSI Z223.1/NFPA 54.
Slope the horizontal vent 1/4" upwards for every 12" (300mm)
toward the termination.
Use a condensation drain if necessary.
In the Commonwealth of Massachusetts a carbon monoxide detector
is required for all side wall horizontally vented gas fuel equipment.
Please refer to Technical Bulletin TB 010606 for full installation
instructions.
As illustrated on the left, make sure to keep a distance
of 3' (0.9m) or wider between the intake and exhaust
when installing the vent piping.
The TWHVERTCAP termination may be used in place of
elbows as the
vertical vent termination. It is not necessary
to use bird screens with the TWHVERTCAP termination.
Terminate at least 6' (1.8m) from the combustion air
intake of any appliance, and 3' (0.9m) from any other
building opening, gas utility meter, service regulator etc.
Enclose exterior vent systems below the roof line to limit
condensation and protect against mechanical failure.
When the vent penetrates a oor or ceiling and is not
running in a re rated shaft, a restop and support is
required.
When the vent termination is located not less than
8' (2.4m) from a vertical wall or similar obstruction,
terminate above the roof at least 2' (0.6m), but not
more than 6' (1.87m), in accordance with the National
Fuel Gas Code ANSI Z223.1/NFPA 54.
Provide vertical support every 3' (0.9m) or as required
by the vent pipe manufacturer's instructions.
A short horizontal section is recommended to prevent
debris from falling into the water heater.
When using a horizontal section, slope the horizontal
vent 1/4” upwards for every 12” (300mm) toward the
termination to drain condensate.
Vent Pipe Installation

16

'4-+8
3" (75mm) or
4" (100mm)
Intake*
Horizontal Vent Termination- 3" (75m) Concentric PVC/CPVC Termination
3" (75m m ) or
4" (100m
m )
Exhaust*
!:8'69
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Vent Pipe Installation
Intake and exhaust should face the same direction.
Intake and exhaust should keep the same
pressure zone.
2ft. Min
Interior View
Interior View Exterior View
Interior View Exterior View
1ft. Min1ft. Min
0
Insert the bird screen.
90° elbow vertical setting (downward).
0
Ensure at least 3ft (0.9m) or more distance between
the near edge of the air intake pipe or exhaust pipe
to the inside corner of a wall.
0
Ensure at least 2ft (0.6m) or more distance between
intake pipe and exhaust pipe.
The distance is measured at inside of pipe to inner
dimension.
0
Intake and exhaust should face the same direction.
Intake and exhaust should keep the same
pressure zone.
0
Insert the bird screen.
90° elbow vertical setting (downward).
0
Ensure at least 3ft (0.9m) or more distance between
edge of air intake pipe or exhaust pipe and corner wall.
0
Upper side is exhaust, lower side is intake.
The reverse connection is not allowed.
0
Ensure at least 1ft (0.3m) or more distance between
intake pipe and exhaust pipe.
The distance is measured at the outlets of
intake port (terminal) and exhaust port (terminal).
0
Intake and exhaust should face the same direction.
Intake and exhaust should keep the same
pressure zone.
0
Insert the bird screen.
90° elbow vertical setting (downward).
0
Ensure at least 3ft (0.9m) or more distance between
edge of air intake pipe or exhaust pipe and corner wall.
0
The side distant from wall is intake, the side near the
wall is exhaust.
The reverse connection is not allowed.
0
Ensure at least 1ft (0.3m) or more distance between
intake pipe and exhaust pipe.
The distance is measured at inside of pipe to inner
dimension.
00Exhaust
Intake
Exhaust Intake
1ft. Min
Exterior View
Exhaust
Exhaust
Intake
Intake
Exhaust Intake
3” Min
WARNING
If the distance between the air inlet and exhaust vent terminations is too short, the water heater
will draw in the exhaust gases through the intake. There is a risk of inadequate combustion air
for the water heater, increasing Carbon Monoxide (CO) emissions and noise due to vibration.
0Termination elbows must be oriented vertically, pointing directly downward. Attempts to prevent
exhaust air from entering the air inlet by angling termination elbows in directions other than
directly downward will increase the risk of freezing.
0Reversing the air intake and exhaust pipes is not allowed.
Carbon Monoxide (CO) emissions and noise due to vibration will increase.
3” Min
3” Min
5.9”
5.9”
5.9”
Horizontal Vent Termination- PVC/CPVC Materials Only
Do Not Use TWHHORHOOD as a vent termination unless there is at least 3ft. (0.9m) or more distance between the intake pipe and exhaust pipe.
Installations where 3ft (0.9m) distance cannot be met, use 90° elbows as the vent terminations as shown in the illustrations below.

18
Vertical Vent Termination- PVC/CPVC Materials Only
Firestop
Firestop/Support
Roof
Flashing
Storm
Collar
Hanger
Strap
Horizontal Vent Termination- PVC/CPVC Materials Only
Hanger
Straps
**1' (0.3m) Minimum
Slope vent
Upwards
**1' (0.3m) Minimum
* Not supplied with water
heater, order separately.
recommended, but not required.
Insert Bird
Screen* in
Each End
of Tee
Support
Insert Bird
Screen* in
End of 90
Elbow
Slope vent
Upwards
* Not supplied with water
heater, order separately.
**1' (0.3m)
Minimum
**1' (0.3m) minimum
recommended, but not required.
Exhaust
Intake
Exhaust
Intake
90 Elbow
SV Conversion Kit
Accessory
(#SV-CK-3)
90 Elbow
SV Conversion Kit
Accessory
(#SV-CK-3)
Inlet screen
Inlet screen
3” Min.
DDDDDDDDDDDDDDDA tee, 90° elbow, or the TWHHORHOOD termination may be
used for the vent termination. It is not necessary to use bird
screens with the TWHHORHOOD termination.
Terminate at least 12" (300mm) above grade or above snow line.
Terminate at least 7' (2.1m) above a public walkway, 6' (1.8m) from
the combustion air intake of any appliance, and 3' (0.9m) from
any other building opening, gas utility meter, service regulator etc.
Terminate at least 3' (0.9m) above any forced air inlet within
10' (3m) , 4' (1.2m) below, 4' (1.2m) horizontally from or
1' (0.3m) above any door, window, or gravity air inlet into any
building per National Fuel Gas Code ANSI Z223.1/NFPA 54.
Slope the horizontal vent 1/4" upwards for every 12" (300mm)
toward the termination.
Use a condensation drain if necessary.
In the Commonwealth of Massachusetts a carbon monoxide detector
is required for all side wall horizontally vented gas fuel equipment.
Please refer to Technical Bulletin TB 010606 for full installation
instructions.
The TWHVERTCAP termination may be used
in place of elbows as the vertical vent termination.
Terminate at least 6' (1.8m) from the combustion air
intake of any appliance, and 3' (0.9m) from any other
building opening, gas utility meter, service regulator etc.
Enclose exterior vent systems below the roof line to limit
condensation and protect against mechanical failure.
When the vent penetrates a oor or ceiling and is not
running in a re rated shaft, a restop and support is
required.
When the vent termination is located not less than
8' (2.4m) from a vertical wall or similar obstruction,
terminate above the roof at least 2' (0.6m), but not
more than 6' (1.87m), in accordance with the National
Fuel Gas Code ANSI Z223.1/NFPA 54.
Provide vertical support every 3' (0.9m) or as required
by the vent pipe manufacturer's instructions.
A short horizontal section is recommended to prevent
debris from falling into the water heater.
When using a horizontal section, slope the horizontal
vent 1/4” upwards for every 12” (300mm) toward the
termination to drain condensate.
* Dip switch No.3 is turned on.
Vent Pipe Installation (When supplying combustion air from the indoors (SV, non-direct vent))
t%JTDPOOFDUQPXFSBOEUVSO0/EJQTXJUDIJGDPNCVTUJPOBJSXJMMCFTVQQMJFEGSPNUIFindoors as illustrated to the right. Refer to page 31 for the location of the dip switch bank.
t
SV Conversion kit #SV-CK-3 is required for the air intake. The SV Conversion Kit
#SV-CK-3 is contained within both the Horizontal Installation Kit (TWHHORKIT)
and the Vertical Installation Kit (TWHVERTKIT).
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WARNING
When installing this water heater in an area with a large amount of lint such as a commercial Laundromat,
direct-vent ("-DV") system must be used. The "-SV" configuration (using an SV conversion kit) is prohibited.
DANGER