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HomeMy WebLinkAboutProduct Approval Product and Warranty Information : NORITZ SUPPORT Page 1 of 2 M& NORITZ"i Advanced.Search Product Information . Home Product Info Technical Literature Self Service I Contact Us Home»Product Info Search by Model View Mode: SHEET TAB Print Product Info NRC711-DV-NG v Previous Name:NRC83-DV-NG 27 Residentialor commercial ....... ......... Residential ........................................._.._.........__.................... Freeze Protection .................Yes................_................_.... .........................__.............................. .. ...............----._ ........... ............._.-._..........._. .....j ._...................................................................... I Installation Location Indoor Only Freeze Protection Rating-Indoor Temp -30°F Exhaust Type 2-pipe Direct Vent(SV convartiblo) Freeze Protection Rating-Outdoor Temp NIA _,.,,..,_._.._........�..............................................__.................................._................................................................................................. .-. .----..........._.._.........................................................._._...................................................................................................._.._.._.......................... Max Fiow Rate 7.1 GPM eci%lation Compatible? Yes - �-- Flow Rate @ 50°F Rise __..__5,8 GPM_ `New Generation Model Number NIA Flow Rate @ 80°F Rise 3.7 GPM Previous Name NRC83-DV-NG .�..__.__ Temperature Range 115°F-140°F Available Temperature Settings(with 115,120,125,130,135,140-F Production Status Active j remote) .. .... -_.^. _ I....._...... ...._...__........... ----.............._.........._........._............_._............_.._._...._._.__._...._......__...............: Condensing rvYes- -- { ! Default Temperature Setting(without 120°F Minimum Activation Flow Rate 0.5 F remote) ,.� ,................._."".._.._........ ..._...,.w_.,.,""__..._..........._....._..."..._._ i -__ _................................__..._.__.._._.....__.-_......_..___..__. ._.-.__.._ Water Quality Treatment May Bs Necessary Default Temperature Program Setting 120,130,135,140°F . ......._____.._. .._.... ..______. ....._._""......_.,__......._.-,._._._..............- -- Options(without remote) Production Date Range .._.._.__............................._._............................_...................................__.._.................._........................................_..._..._............................. ..._.._..........................................._............._._.............................._..._.........................._.............................._............._...._:_................_........... Min Gas In ut Btu 15000 ] Combustion AtrAtr Requirements-using 100 W(Only if SV conversion) Max G�^mss I�abut Btu 157000 1 Outdoor Air ............................................._.._............................................_...............................__...................._................__..............._......................._ -- ._._.....-..____._____.... ..„ M__.._..._.,..._.....,....._.._ __...v_.._.___ (((r Height(in) 23.6I Head Loss at 2 ppm !Width(In) 13.8 C_oid_Connaction-fiei�h� 2.3" ................................................................................................................................................................................................................... .., Depth(in) 6.7 Power Consumption wlout Freeze 71 Watts -`" ' _ Weight(lbs) 41.0 Prevention Thermal Efficiengy 93% ! Power Consumption..... zo Prevention 138 Watts ,: r---! Flow Meter Alarm Yes,with optional remote ,Ene-�ray Factor 0.94 �, ..�*arm....._.......________u___........._....___._.-...._._.._....._.........."...._,_____-_...._..__......_ Service Reminder No I Ouick-Conneet Compatible? No Condensate Handling Method? NC-1 i Cold Water Connection Size(in) 314 Noise Rating(dB) 51 d6 .......................................................................................................................................... ..........................................................................................._§ C t C l II dS f ry Y Hot Water Connection Size Cin) 314 Tested to UL ontpu er on ro e a a as l-. .__...� - ----.-----.._---- St Gas Connection Size(in) 314 € andards —.-----._-- Power Supply 120 VAC(60 Hz) Flame Sensor Yes H Limit Switch Yes Current Draw(A) 1.75 a ! ^--- Exhaust Vent Diameter Requirements 3" Lightning Protection Yes 'Exhaust Vent Material Requirements PVC or CPVC____ Overheat Cutoff Fuse Yes Max Vent Length with 1 elbow 57' Temperature Lockout ..................._..............._ Yes.-._._............__..... ........................................._._..................... _ _ _ ..:_........_......._......................._....... .... ..... Ignition Type Direct Electronic Vent Tenninalion Clearances to Any Below=1',Side=1',or Above=V �.. Building Opening(ft) Case Materiel Durable Steel Casing with Polyester Gas Supply Pressure Range 4-10.5"WC j , Coating Min Gas Line Size 314"up to 30' ColorlFinish — Beige Flue Collar Material PVC WaterPressure Rating ai 15-150 -__.._-__...._......_......_....,__....___ _._.__._..__.._._...._.._...._.._.._........................._..._.__.____..__._..._._._._...... Case Clearances(in) Top=12',Front=4",Sides=3",Back Primary Heat E chars e-:Material Copper mm _._._ , !Secondary Heat Exchange Material Stainless Steel i Combustion Air Requirements•using 180 in'(Only if SV conversion) (� -.Mounting Type Wall Hung _._.. Indoor Air Package Contents Anchoring Screws,Owner's Guide, ...._._.............................................._..---..._.__...............................................................-._..................._.._.—..._.__..............................: ' Warranty,Installation Manual Guide, I Warranty,Installation Manual {{Nater Holding Capacity 0.2 gallons t..... ................................................. ........-_.._......................................................._......_............_....................._..._._.._....._................................ . .........................................................._.......__........._........................................___......_.._............. _......_.........................._........................_...........----....................._......................................._._.._............_.._....----....._.........................., j KeypadlThermoslat Display Not included �'°', ! High Elevation Adjustment Yes I Compatible Remote Controller Part# RC-7651M O_uick-Connect Cord Part# NIA Isolato:Valve Part# -IK-WV-200-1-xx ^� S stemma-^, Cont o ter Compatible? - No Freeze Protection Yes System ontrolleerr Part# NIA Freeze Protection Kit Accessory WA Remote Controller Cord Not Included Outdoor Vent Cap Part# _ WA 1 Compatible Remote Controller Cord Part WA Pi a Cover Part# PC-1S _ # ..__.. .........................-__..._._.—._.._._--_............._...--- ...._._.._.._.___.._._......_.._................_.............. I j Power Cord Included attached http://support.noritz.cohi/product-info.php?selected model=NRC711-DV-NG 10/5/2015 Product and Warranty Information :NORITZ SUPPORT Page 2 of 2 s Box Part# N/A NOR.. .._._....._..._._..____W_______.—.�.._..— nn Advanced:Search R ITZ Product Information „.,:,• . s ........ ...... ............... oM' t, Prr�tlatl � TechnlcahLttetafure (- ---Self Service Contact Us ENERGY.ST ,4ualitied..........................Yes......................................................._...........:....'.Ener v.Guide.:.EsL.YearlY.EnerOY.Use,....15.T.therms.............. .....;....... n.�...:nuc,..x---.._.._._....__..................................................._......._.__._. .. ...... . .. ice.... .. CSA Yes En Guide-Est.Yeady Operating E171 Mohile Home '"""'_._...._.._.._....No__.__.._....._..... _•_------•--- cost NSF Yes I UPC Low Lead Yes .............__......_..._..._._._---__ 1.,,_._._..._,,..,.,._..,.......,...... ........_._......_.__—..-.......,,._,......._,_,____,._.,-.._�.....,_,_,._. __......_....___......_......... SCA,sMD(20 3 m Yes ASh1E(HLW) No . }._---!A ..............._.m.._.._ ._,.....»....... ________._....._,..M...,_.... ..__........._..._............. SCAOMD(55 pprn� No ASME(H) No , ......._... ..�._._._—............_........................_..-'---.--....._................................._........................................................................................................ UPC No ASM (N8) No ! .,y 4 Heat Exchanger Warranty(w/out 12 Years Parts Warranty 5 Years Recirculation) Labor Warranty 7 Year Heat Exchanger Warranty 3 Years '--• ?..�wiRecireulation 6 Go to Warranty Calculator .._.........,.......}.._.._._—.__...—._._....._._..........._.._.__._...__.._.._...._......_......_........_ .................. LOW-LEAD eESION MEMO " P 71nq+1or30pOm,. O c`�RiIF�E�® Subscribe to Knowledgebase Get notified when Knowledgebase articles are added or updated. ,Email Address VIEW FULL SITE Copyright©2011,NORITZ AMERICA CORP.AII Rights Reserved Terms of Use I Privacy Policy http://support.noritz.com/product-info.php?selected—model=NRC71 1-DV-NG 10/5/2015 NORITZ AMERICA Installation Manual CORPORATION CONDENSING TANKLESS GAS WATER HEATER N RC 711-DV (Indoor Installation) ecoTOU171f Super Efficient.Reliable. ) 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. DANGER indicates an imminently hazardous situation which, ztDANGER if not avoided, will result in death or serious injury. WARNING indicates a potentially hazardous situation which, WARNING if not avoided, could result in death or serious injury. CAUTION I CAUTION indicates a potentially hazardous situation which, if not avoided, may result in minor or moderate injury. WARNING: if the information in this manual is not followed exactly, a fire or explosion may result causing property damage, personal injury or death. Prohibited Disconnect Ground Be sure to do Power 0 0 &CAUTI - - - - - - - - - - - � N � N 0 ��������f� ��� R�o��KK���� ��----- � ° V�����=��� �~= Installers 0 m " |norder touse the water heater nafelxnaodth�inat��t�nnan�fu|k/ �n� fo|Nvvtha|n- 0 0 ~ manual ^' - � ���bo instructions. 0 N , Failures and damage caused by erroneous work or work not as instructed in this manual are not - 0 covered bythe warranty. - 0 ^ Check that the installation was done properly in accordance with this Installation Manual upon completion. U ° After completing |notoUaUon. p|emsao�hmrp|ocethim|nst�U�UonK0�nua| in � p|�oUcpouch�nd m m 0 0 recesso�achithmthe side ofthe vxoharhaabar(or the inside ofthe pipe cover orb �ifoppUnob|a) = � or hand ittothe cuobornerbm retain for future rehynanm*. /�|so, besure tohU'r all of the required' 0 m items onthe warranty and bmhand the vxerrantvtoth�ouatonnnrm/ongvviMN �he [)vvne/���uid� 0 ^ � - FOR USE|NRESIDENTIAL APPLICATIONS. Installation must conform with|ono|codes. nrinthe absence of |one/ codes, the National Fuel Gas Code, ANSI 2223.1/NFRA 54- latest edition and/or CSA B14S.i. Natural Gas and Pro- pane Installation Code(NSCNGPIC). no- pono|notoUekionCode(NSCNGP|C). Low NOx NoritzAmmhca reserves the right to dionontinue, or change at Approved by any time,the designs and/or specifications ofits products wdh- SCAQMD out notice. �4nuUor2Oppm (Natural Gas Only) SBB806U Rev. 01/14 UUN|KN/N/ UUUKNU�/ /mm|mm|� 0N�UU0|NN 'The following accessories are Included with the unit �11c�Uded �1cCessol"�e5 Che ckforanymissing iternsbeforestartrng installation Part Shape Q'tY Part Shape Q'tY Owner's Guide,Warranty, 1 Anchoring Screw 5 Installation Manual each (this document) The accessories listed below are not 2, Optional Accessories included°with fhe units, but may be necessary. ;.�z'- forinstallation.. , Part Shape Q'ty Part Shape Q'tY Remote Controller 1 Remote Controller 1 (See p. 30) `® Cord (1 Oft(3m)) 3" (75mm) Remote Controller PVC Terminal 1 Cord (26ft(8m)) 1 VK3-H-PVC Mn Mn Isolation Valves 1 Bird Screen for (includes pressure each 3" (75mm) PVC 2 relief valve) VT3-PVCS ® 3" (75mm) Pipe Cover 1 Horizontal Hood 2 (PC-1 S) Termination PVT-HL SV Conversion Kit (#SV CK-3) •90°Elbow 1 Neutralizer 1 ith Inlet Screen) each (NC-1) •Installation Manual (Check List) Note:Additional vent pieces are available; consult the latest product catalogue for details. 2 r . Before Insa[laton & DANGER Checkup • Check the fixing brackets and vent pipe yearly for damage or wear. Replace-if necessary. WARNING Precautions on Vent Pipe Replacement • The vent system will almost certainly need to be replaced when this appliance is being installed. Only use vent materials that are specified in this Installation Manual for use on this appliance. Refer to the"Vent Pipe Installation"section for details. If PVC, CPVC,or Category IV listed pipe is already installed,check for punctures,cracks,or blockages and consult with the vent pipe manufacturer before reusing. Improper venting may result in fires,property damage or exposure to Carbon Monoxide. Snow Precaution • If this product will be installed in an area where snow is known to accumulate, protect the vent termination from blockage by snow drifts or damage from snow falling off of roofs. Check the Gas • =.z. M.VM. :NR07"-0V( TOUGH) �QRLEeQ Checkthat the rating plate indicates the auomvnb f":UM157.mdaa 6p.VMW Cab'Rp.:Mss t6fauoaN -Mh 16.ST BT0 correct type o gas. 1�.....0'Wtla/(iG.r.Wnttbn.iwM ,74awr,6696rr. • aa.. �.m°dww,:+aoAa°s-M"�.sSOi64:a. K$F. Check that the gas supply line is sized for W, o :�16pq_M"166..1 157,000BtUh. J- •r(pomna)aaubvamebmiaerg7+aow.a./mH' Check the Power 6GMO • The power supply required is 120VAC,at 60Hz. Using the incorrect voltage may result in fire or electric shock. Use Extreme Caution if Using With a Solar Pre-Heater • Using this unit with a solar pre-heater can lead to unpredictable output temperatures and possibly scalding. If absolutely necessary, use mixing valves to ensure output temperatures do not get to scalding levels. CAUTION Do Not Use Equipment for Purposes Other Than Those S ecifed • Do not use for other than increasing the temperature of the water supply, as unexpected accidents may occur as a result. Check Water Supply Quality • If the water supply is in excess of 12 grains per gallon(200 mg/L)of hardness,acidic or otherwise impure,treat the water with approved methods in order to ensure full warranty coverage. 3 4, Choosing !16stAttatkqnl.Site * Locate the appliance in an area where leakage from the unit or connections will not result in damage to the area adjacent to the appliance or to the lower floors 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 flow. & DANGER • 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. ! WARNING • Avoid places where fires are common, such as those where gasoline, benzene and adhesives are handled, or places in which corrosive gases (ammonia, chlorine, sulfur, ethylene compounds, acids) are present. Using the incorrect voltage may result in fire or cracking. Prohibited • Avoid installation in places where dust or debris will accumulate. Dust may block the air-supply opening, causing the performance of the device fan to drop and incomplete combustion to occur as a result. • Avoid installation in places where special chemical agents (e.g., hair spray or spray detergent) are used. Ignition failures and malfunction may occur as a result. • Carbon Monoxide Poisoning Hazard. Do not install-this water heater in a mobile home, recreational vehicle or on a boat. &CAUTION • The water heater is designed for indoor installation only. Never install it � outdoors or in a bathroom, it may be damaged or a fire may be caused. �r5 • Consult with the customer concerning the location of installation. Prohibited • 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. • Do not install the water heater in a place where it may be threatened by falling objects, such as under shelves. • The water heater must be installed in a place where supply and exhaust pipes can be installed as directed. • Do not install the water heater where the exhaust will blow on outer 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. 4 A. CAUTION • Avoid installation above gas ranges or stoves. • Avoid installation between the kitchen fan and stove. If oily fumes or a large amount of steam are present in the installation location, take measures to prevent the fumes and steam from Prohibited Tr�]=entering in the equipment. • Install in a location where the exhaust gas flow will not be'affected by fans or range hoods. () F0 • Take care that noise and exhaust gas will not affect neighbors. Avoid installation on common walls as the unit will make some operational noises while it is running. eesure toao m • Before installing, make sure that the exhaust flue termination will have the proper clearances according to the National Fuel Gas Code(ANSI Z223.1). Prohibited State of California: The water heater must be braced, anchored or strapped to avoid moving during an earthquake. Contact local utilities for code requirements in your area or call: 1-866-766-7489 and request instructions. The Commonwealth of Massachusetts: The water heater can be used for hot water only and not in a combination of domestic and space heating. For Venting Manufacturers Requirements, see websites listed below: Noritz N-Vent www.noritz.com 5 5 Ins all3aton clearances &WARNING FANSIZ223.1/NF11PA ng, check for the following: ance with relevant building and mechanical codes, as well as any local, state or ons, or in the absence of local and state codes, to the National Fuel Gas Code A 54—latest edition. In Canada, see NSCNGPIC for detailed requirements. Item Check Illustration • Maintain the following clearances from both combustible and N 12" (300mm) or more (D non-combustible materials. .n Cn Cn ..0 E 4" (100mm) or more 0 U E O c 2" (50mm) or more m An 0 Distance from the side • If possible, leave 8" (200mm) or more ��� ZZ on either side of the unit to facilitate 3"(75mm)or more o inspection. "- r8rm(200mm) 3"(75mm)or more If possible, leave 24" (600mm) or more in ore cc 0 C Ca front of the unit to facilitate maintenance 4--.c and service if necessary. or more ) or more If possible, leave 3" (75mm) or more 24" (600mm) a above and below the vent pipe to facilitate or more CO inspection and repair if necessary. <When the indoor air supply> • If the unit will be installed in the vicinity of a permanent kitchen range or stove that E has the possibility of generating steam ' •CL I 5 that contains fats or oils, use a dividing Exhaust hood Cr plate or other measure to ensure that the unit is not exposed to air containing such Dividing plate Water o impurities. heater 0 v *The dividing plate should be of noncombustible material of a width greater than the water Range heater. 6 ♦The illustration is an example. Please check with the actual water heater about the position of piping,and form. Clearance Requirements from Vent Terminations to Building Openings <When supplying combustion air from the outdoors (Direct Vent)> *All clearance requirements are in accordance with ANSI Z21.10.3 and the National Fuel Gas Code, ANSI Z223.1 and in Canada, in accordance with NSCNGPIC. D G E A �H ® l M B o L--- -F B I.-J� K B ❑V Vent Terminal Area Where Terminal ® Air Supply Inlet ® is Not Permitted Ref Description Canadian Direct Vent US Direct Vent Installations I Installations A= Clearance above grade,veranda,porch, 12 in(30 cm) 12 in(30 cm) deck,or balcony B= Clearance to window or door that may 36 in(91 cm) 12 in(30 cm) be opened C= I Clearance to permanently closed window Vertical clearance to ventilated soffit located above the terminal within a D= 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 Clearance to each side of center line 3 ft(91 cm)within a height H= extended above meter/regulator assembly meter/regulator 15 ft(4.5 above the assembl 1= Clearance to service regulator vent outlet 3 ft 91 cm Clearance to nonmechanical air supply J= inlet to building or the combustion air inlet 36 in(91 cm) 12 in(30 cm) to any other appliance K= Clearance to a mechanical air supply inlet 6 ft(1.83 m) 3 ft(91 cm)above if within 10 ft(3 m)horizontally Clearance above paved sidewalk or paved , L= (driveway located on public property 7 ft 2.13 m)t M= Clearance under veranda,porch,deck, 12 in(30 cm)$ or balcony ' In accordance with the current CSA B149.1 Natural Gas and Propane Installation Code 2 In accordance with the current ANSI Z223.1 /NFPA 54 National Fuel Gas Code tAvent shall not terminate directly above a sidewalk or paved driveway that is located between two single family dwellings and serves both dwellings. $Permitted only if veranda,porch,deck,or balcony is fully open on a minimum of two sides beneath the floor. *Clearance in accordance with local installation codes and the,requirements of the gas supplier. Clearance to opposite wall is 24 inches(60 cm). 7 Clearance Requirements from Vent Terminations to Building Openings <When supplying combustion air from the indoors (Non-Direct Vent)> *All clearance requirements are in accordance with ANSI Z21.10.3 and the National Fuel Gas Code, ANSI Z223.1 and in Canada, in accordance with NSCNGPIC. D � G �E A .,I H� L `BAN C B� F-4 B K-' � I�J B B ❑V Vent Terminal Area Where Terminal ® Air Supply Inlet ® is Not Permitted Ref Description Canadian Non-Direct Vent US Non-Direct Vent Installations 1 Installations A= Clearance above grade,veranda,porch, 12 in(30 cm) 12 in(30 cm) deck,or balcony Clearance to window or door that may 4 ft(1.2 m)below or to side B= be opened 36 in(91 cm) of opening; 1 ft(30 cm) above opening C= Clearance to permanently closed window Vertical clearance to ventilated soffit D= located above the terminal within a horizontal distance of 2 feet(61 cm) from the center line of the terminal E= Clearance to unventilated soffit F= Clearance to outside corner G= Clearance to inside corner Clearance to each side of center line 3 ft(91 cm)within a height H= extended above meter/regulator assembly 15 ft(4.5 m)above the meter/regulator assembly 1= Clearance to service regulator vent outlet 3 ft 91 cm Clearance to nonmechanical air supply 4 ft(1.2 m)below or to side J= inlet to building or the combustion air inlet 36 in(91 cm) of opening; 1 ft(30 cm) to any other appliance above opening K= Clearance to a mechanical air supply inlet 6 ft(1.83 m) 3 ft(91 cm)above if within 10 ft(3 m)horizontally Clearance above paved sidewalk or paved )t L= ( 7 ft m driveway located on public property M= Clearance under veranda,porch,deck, 12 in(30 cm)$ or balcony ' In accordance with the current CSA 8149.1 Natural Gas and Propane Installation Code 2 In accordance with the currentANSI Z223.1 /NFPA 54 National Fuel Gas Code to vent shall not terminate directly above a sidewalk or paved driveway that is located between two single family dwellings and serves both dwellings. t Permitted only if veranda,porch,deck,or balcony is fully open on a minimum of two sides beneath the floor. *Clearance in accordance with local installation codes and the requirements of the gas supplier. Clearance to opposite wall is 24 inches(60 cm). 8 6 ins tallation Securing to the wall • The weight of the device will be applied to the wall. If the strength of the wall is not sufficient, reinforcement must be done to prevent the-transfer of vibration. 0 • Do not drop or apply unnecessary force to the device when installing. Internal parts may Be sure to do be damaged and may become highly dangerous. • Install the unit on a vertical wall and ensure that it is level. Item Check Illustration ! CAUTION Location of Screw Hole When installing with bare hands, take caution to Mounting Bracket o not inflict injury. (upper) s _ Be careful not to hit electrical wiring, gas, or water � piping while drilling holes. � �� •.a U a, 1. Drill a single screw hole, making sure to hit a stud. ca2. Insert and tighten the screw and hang the unit by 0 the upper wall mounting bracket. 3. Determine the positions for the remaining four screws (two for the top bracket and two for the bottom), and remove the unit. Locating Screw Holes 4. Drill holes for the remaining four screws. Anchoring Screw o. 5. Hang the unit again by the first screw, and then 0 insert and tighten the remaining four screws. C: 6. Take waterproofing measures so that water does � not enter the building from screws mounting the device. 0 • Make sure the unit is installed securely so that it will 3 not fall or move due to vibrations or earthquakes. rn w Adjust the DIP switches as illustrated in the table to `Donot change any other DIP switches. o ,the right if this water heater is installed at an altitude OFF ,• :•,• 0 of 2000 ft. (610m) or higher. ON >$ •High elevation adjustment. o Disconnect power to the water heater before changing 6 6 W o the DIP switches. Failure to perform this step will result 0-2,000ft(0-610m) O O Ci in a 733" code displayed on the Display Window and 2,001-4000ft 611-1,220m • O Cn a) 4,OD1-6,000 ft(1,221-1,830m) O • C: > a cease in operation. If this occurs, disconnect, then p 6001-8000ft 1,831-2440m • • m reconnect power to the water heater to reset the system. oN=• OFF=O -- c Q ----- - A— C9 N C ♦The illustration is an example. Please check with the actual water heater about the position of piping, and form. 9 Filling the condensate trap with water When initial start up, make sure that you perform the following procedures. A! DANGER This is to prevent dangerous exhaust gases from entering the building. Failure to following procedure could result in severe personal injury or death.] After installing the drain pipe, make sure that the area around the unit hawell ventilated; open awindow ora door ifnecessary. Then, operate the unit and verify that condensate iscoming out ofthe drain pipe. 0]uhng normal use,of the unit, condensate will begin to discharge from the drain pipe within 15 minutes 'of use. However, depending on the season and/or installation site conditions, it may take longer.) ' 10 y) 7. Uent Pipe Lnstahlationlndoor Installation Onl !,WARNING CARBON MONOXIDE POISONING Follow all vent system requirements in accordance with relevant local or state regulation, or, in the absence of local or state code, in the U.S. to the National Fuel Gas Code ANSI Be sure to do Z233.1/NFPA 54—latest edition, and in Canada, in accordance with NSCNGPI. General Requirements Maximum Vent Lengths • Under normal conditions, this appliance will • This appliance has been designed to be vented not produce an exhaust flue temperature with either 3" (75mm) PVC or CPVC pipe. in excess of 149°F (65°C) and schedule 40 Do not exceed the following maximum vent lengths: PVC pipe may be used as the vent material. Pipe diameter 3" (75mm) If required by local code, schedule 40 or 80 CPVC may also be used on this appliance. No. of Elbows Max. Straight Vent Length* Refer to page 13 for additional requirements. 4 39' (11.7m) • Make sure the vent system is gas tight and 3 45' (13.5m) will not leak. 2 51' (15.3m) • Support the vent pipe with hangers at regular 1 57' 17.1 m intervals as specified by these instructions or * Not including the termination the instructions of the vent manufacturer. • Do not common vent or connect more than Maintain the same vent pipe diameter from the one appliance to this venting system. heater flue to the vent termination. The exhaust • The total vent length including horizontal &vertical and intake pipes must be the same vent pipe vent runs should be no less than 3' (0.9m). diameter. • Do not store hazardous or flammable substances near the vent termination and check that the termination is not blocked in any way. Clearances • Steam or condensed water may come out PVC or CPUC has been approved for use on this from the vent termination. Select the location appliance with zero clearance to combustibles. for the termination so as to prevent injury or property damage. • If snow is expected to accumulate, take care the end of the pipe is not covered with snow or hit by falling lumps of snow. 11 Maximum Vent Length Adjustment DIP switch The unit can be adjusted to accommodate longer vent runs; refer to the below table to find the maximum vent length based on the number of elbows.Adjust the DIP switch 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 switch for longer vent runs, the BTUH input of the appliance will be reduced by up to 5%. - Disconnect power to the water heater before changing the DIP switch. Failure to perform this step will result in a"733"code displayed on the Display Window and a cease in operation. If this occurs, disconnect, then reconnect power to the water heater to reset the system. [Maximum Vent Length Example] -Two 900 elbows, maximum length = 18 ft. (5.4m) (with DIP switch set at"short length" condition) -Two 900 elbows, maximum length =51 ft. (15.3m) (with DIP switch set at"long length" condition) <Maximum Vent Length Configurations> Vent length* Elbows pieces" ft M Number of 0 1 2 3 4 0 0.00, 0 3 0.901 1 6 1.80 2 9 2.70 3 T 12 3.60 4 15 4.50 5 18 5.40 6 21 6.30 7 24 7.20 8 27 '8.10 9 30 9.00 10 33 9.90 11 (2) 36 10.80 12 39 11.70 13 42 12.60 14 45 13.50 15 Do not change any other DIP switch. 48 14.40 16 OFF 51 15.30 17 54 16.20 18 ON 57 17.10 19 Vent length condition. 60 18-00 20 63 18.90 21 **Table assumes straight vent pieces are 3'(0.9m)each. Q Short length 0 Shorter or longer vent pieces may also be used up to the maximum allowed vent length, 0 Long length 7FJ anli% ON=* OFF=0 The power must be unplugged when Ln adjusting the DIP switch to switch the co airflow amount. 12 Venting With PVC or CPVC This appliance can be vented with non cellular core plastic pipe materials as specified in the below table. Vent installations in Canada which utilize plastic vent systems must comply with ULC S636. Item Material United States Canada Schedule 40 PVC ANSI/ASTM D1785 Exhaust Vent/Air Intake PVC-DWV ANSI/ASTM D2665 ULC S636 Certified Schedule 40 CPVC ANSI/ASTM F441 Materials Only Pipe Cement/Primer PVC ANSI/ASTM D2564 CPVC ANSI/ASTM F493 Note: Do Not Use Cellular Foam Core Pipe PVC/CPVC Installation Instructions • Use only solid PVC or CPVC schedule 40 pipe. Cellular foam core piping is not allowed. • 3"schedule 80 pipe may also be used on this appliance, however the BTUH input of the appliance will be reduced by up to 5%. • In Canada, plastic vent systems must be certified to ULC S636. The components of the certified vent system must not be interchanged with other vent systems or unlisted pipe/fittings. • In Canada,specified primers and glues of the ULC S636 certified vent system must be from a single system manufacturer and not intermixed with other system manufacturer's vent system parts. • Follow all general venting guidelines as outlined on this page. • PVC or CPVC pipe has been approved for use on this appliance with zero clearance to combustibles. • The pipe shall be installed so that the first 3'(0.9m)of pipe from the appliance flue outlet is readily accessible for visual inspection. • When preparing and assembling the pipe,follow instructions as provided by the pipe manufacturer. In general,the following practices must be observed: o Squarely cut all pieces of pipe. o Remove all burs and debris from joints and fittings. o All joints must be properly cleaned,primed,and cemented. Use only cement and primer approved for use with the pipe material as outlined in the above table. NI! WARNING CARBON MONOXIDE POISONING Failure to properly seal the vent system could cause flue products to enter the living space. • All piping must be fully supported. Use pipe hangers at a minimum of 3'(0.9m)intervals. Do not use the water heater to support the vent piping. • When attaching the piping to the water heater,use the appropriate primer and cement to ensure a proper seal. • A bird screen must be installed on the vent terminations to prevent debris or animals from entering the piping. These screens are not supplied with the water heater and must be purchased separately (part#VT3-PVCS, use part PVC or CPVC). 13 Vent Pipe Installation Horizontal Vent Termination- PVC/CPVC Materials Only •As illustrated on the left,make sure to keep a distance of 3'(0.9m) _ insertBwscreen* or wider between the intake and exhaust when installing the vent piping. IrkHan,pe =_ In End of9o'Elbmv •If 3'(0.9m)remote distance between Intake and Exhaust cannot be ensured, __ the installation can be carried out only in the installation method shown in page 16. •The PVT-HL termination may be used in place of elbows as the -- horizontal vent terminations.It is not necessary to use bird screens t =_ with the PVT-HL termination. _ aX MIn. •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. Not supplied with water heater, —— •Terminate at least 3'(0,9m)above any forced air inlet within order 'minimseparately. co 10'(3m),1'(0.3m)below,1'(0.3m)horizontally from or 1'(0.3m) ® "1'minimum recommended, but not required. _= above any door,window,or gravity air inlet into any building per National Fuel Gas Code ANSI Z223.1/NFPA 54. When choosing intake and exhaust terminations,you must use the 'Slope the horizontal Vent 1/4"Upwards for every 12"(300mm) same type of elbow(i.e.both 90°elbows). toward the termination. This will help with proper combustion by putting both terminations in • Use a condensation drain if necessary. the same pressure zone. •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. Vertical Vent Termination- PVC/CPVC Materials Only kFirestop/Support . rt Bird • As illustrated on the left,make sure Co keep a distance o" of 3'(0,9m)or wider between the intake and exhaust Elbow Insert Bird Screen-n when installing the vent piping. End of90°Elbow Stormcellar Nd'° Terminate at least 6'(1.8m)from the combustion air . 12'avermasnow level intake of any appliance,and 3'(0.9m)from any other torm Roof X24.wfuMmer cauar Flashing Ie greater. building opening,gas utility meter,service regulator etc. Intake ustEnclose exterior vent systems below the roof line to limit port condensation and protect against mechanical failure. -- • When the vent penetrates a floor or ceiling and is not _= running in a fire rated shaft,a firestop and support is Support == 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 Fires op Hanger Firestep == Strap more than 6'(1.87m),in accordance with the National =_ Fuel Gas Code ANSI Z223.1/N FPA 54. Slope vent Upwards =_ ' Provide vertical support every 3'(0.9m)or as required _= by the vent pipe manufacturer's instructions. Minimum -- • A short horizontal section is recommended to prevent _= debris from falling into the water heater. Not supplied with water heater, —— order separately. — W notof required. • When using a horizontal section,slope the horizontal ° ',' ir recommended, __ " 12" toward the req -- vent 1/4upwards for ever (300mm) termination to drain condensate. 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. 14 AThe illustration is an example. Please check with the actual water heater about the position of piping, and form. Horizontal Vent Termination- 3" (75mm) Concentric PVC/CPUC Termination • The concentric termination may be shortened, but not lengthened from its original factory supplied length. Intake e Hanger == The concentric termination may only be used Straps -= 1 (25mm)to for horizontal terminations. " Strap =_ 4"(100mm) • 3"(75mm) PVC or CPVC pipe may be used with the concentric termination. \ Maintain the same vent pipe diameter from the Exhaust ' —— insert Bird Screen... water heater flue to the termination. Slope vent == in End of Termination —— ••• There must be a 1"(25mm)to 4"(100mm)clearance Upwards Not water heater, between the outside wall and the air intake section _= order separately. of the termination as illustrated on the left. • Install a securing strap to prevent movement of the termination. • Terminate at least 12"(300mm)above grade or _= above snow line. • Terminate at least 7'(2.1 m)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/NFPA54. • Slope the horizontal vent 1/4"upwards for every 12"(300mm). • 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 illustration is an example. Please check with the actual water heater about the position of piping, and form. 15 Vent Pipe Installation Horizontal Vent Termination- PVC/CPVC Materials Only •When 3'(0.9m)remote distance between Intake and Exhaust cannot be ensured. •Can not use Hood termination (PVT-HL) • Intake and exhaust should face the same direction. Intake and exhaust should keep the same Exhaust Intake pressure zone. Insert the bird screen. 90•elbow vertical setting(downward). 22R Min � 23°Mtn • Ensure at least 3ft(0.9m)or more distance between the near edge of the air intake pipe or exhaust pipe a to the inside corner of a wall. • Ensure at least 2ft(0.6m)or more distance between WL intake pipe and exhaust pipe. The distance is measured at inside of pipe to inner Interior View Exterior View dimension. • Intake and exhaust should face the same direction. Intake and exhaust should keep the same nExhaust pressure zone. Exhaust Dd • Insert the bird screen. 90•elbow vertical setting(downward). Intake �21(t.Min )1ft.Min • Ensure at least aft(0.9m)or more distance between Intake edge of air intake pipe or exhaust pipe and corner wall. 23'MIn • Upper side is exhaust,lower side is intake. The reverse connection is not allowed. • Ensure at least 1ft(0.3m)or more distance between intake pipe and exhaust pipe. The distance is measured at the outlets of Interior view Exterior View intake port(terminal)and exhaust port(terminal). • Intake and exhaust should face the same direction. Intake and exhaust should keep the same pressure zone. Exhaust Intake Exhaust Intake • Insert the bird screen. 90•elbow vertical setting(downward). • Ensure at least 3ft(0.9m)or more distance between e 1 ft.Min of air intake pipe or exhaust pipe and corner wall. 21ft.MMin 23°Min • The side distant from wall is intake,the side near the wall is exhaust. The reverse connection is not allowed. • Ensure at least 1 f(0.3m)or more distance between Interior View Exterior View intake pipe and exhaust pipe. The distance is measured at inside of pipe to inner dimension. 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. • Termination 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. • Reversing the air intake and exhaust pipes is not allowed. Carbon Monoxide (CO)emissions and noise due to vibration will increase. 16 AThe illustration is an example. Please check with the actual water heater about the position of piping,and form. Vent Pipe Installation (When supplying combustion air from the indoors (SV, non-direct vent)) 0 DANGER When installing this water heater in an area with a large amount of lint such as a commercial Laundromat, direct-vent C'-DV")system must be used.The"-SV"configuration(using an SV conversion kit)is prohibited. r — — — — — — — — — — — — — — — — — — — — — — — — — - *Dip switch No.3 is turned on. •Disconnect power to the water heater before changing the DIP switch.Failure to perform this step will result in a"733"code displayed on the Display Window and a cease in operation. �OFF If this occurs,disconnect,then reconnect power to the water heater to reset the system . o u` •Dip switch 3 if combustion air will be supplied from the indoors as illustrated to the right ; ON •SV Conversion kit#SV-CK3 is required for the air intake. .................................... O WARNING Failure to perform the above 2 steps could result in a fire or explosion causing property damage,personal injury or death. Refer to the instructions provided with the conversion kit for additional details. m Atom N Horizontal Vent Termination-PVC/CPVC Materials Only •A tee,the PVT-HL termination may be used for the Hanger VEach :3 ten. vent termination.It is not necessary to use bird Exhaust Scraps screens with the PVT-HL termination. Terminate at least 12"(300mm)above grade or above snow line. Slope vent rt Bird .Terminate at least 7'(2.1 m)above a public walkway, Intake Upwards en'inSv conversion Kic 6'(1.8m)from the combustion air intake of any appliance, Accessory End and 3'(0.9m)from any other building opening,gas utility -1'(0.3m)Minimum == of Tee meter,service regulator etc. Inlet screen •Terminate at least 3'(0.9m)above any forced air inlet within _ 90°Elbow_ -- 10'(3m),4'(1.2m)below,4'(1.2m)horizontallyfrom or 'Not supplied with water —— 1'(0.3m)above any door,window,or gravity air inlet into any heater.order separately. _-- building per National Fuel Gas Code ANSI Z223.1/NFPA 54. -V(0.3.)Minimum recommended,but not requked. —_ •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 in structions. Vertical Vent Termination-PVC/CPVC Materials Only Z d in . Terminate at least 6'(1.8m)from the combustion air 0° intake of any appliance,and 3'(0.9m)from any other Stormbuilding opening,gas utility meter,service regulator etc. Collar Enclose exterior vent systems below the roof line to limit condensation and protect against mechanical failure. •When the vent penetrates a Floor or ceiling and is not running in a fire rated shaft,a firestop and support is _= required. -- • When the vent termination is located not less than Support -- 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 Exhaust Hanger Firestop == Fuel Gas Code ANSI 2223.1/NFPA 54. Intake Strap =_ Provide vertical support every 3'(0.9m)or as required Sv Conversion Kit -- by the vent pipe manufacturer's instructions. Accessory Slope vent __ •A short horizontal section is recommended to prevent r(SSV_CK_3)____ Upwards __ I Inlet screen I ••t�(o.9m) __ debris from falling into the water heater. 1 Minimum =_ • When using a horizontal section,slope the horizontal 90 Elbow I _ _ ___ I _= vent 1/4"upwards for every 12"(300mm)toward the , d m wn18 -- termination to drain condensate. near«.aEer sepaetay. —— mmmm.nam.nanaraqmred. -- ♦The illustration is an example. Please check with the actual water heater about the position of piping,and form. 17 Combustion Air Supply combustion air to the units as per the National Fuel Gas Code, ANSI Z223.1 and in Canada, in accordance with CSA-13149.1. • Provide two permanent openings to allow cir- culation of combustion air. 9"(225mm) • Make each opening 180 square inches if they provide indoor air, and 100 square inches for 20"(500mm) outdoor air. • If the unit is installed in a mechanical closet, provide a 24" (600mm) clearance in front of the unit to the door. • If combustion air will be provided through a duct, size the duct to provide 60 cubic feet of fresh air per minute. 20"(500mm) 9"(225mm) Openings supplying indoor air 18 ♦The illustration is an example. Please check with the actual water heater about the position of piping,and form. Follow the instructions from the gas supplier 9 - - - - - - - - - - - CAUTION - - - - - - - - - - 1 1 1 The guidelines and examples we have provided in this manual section are for reference only. 1 1 The sizing and installation of the gas system for this water heater, as with any gas appliance, is the 1 1 sole responsibility of the installer. The installer must be professionally trained to do such work and 1 must always follow all local and national codes and regulations. Gas line sizing calculations must 1 be performed for every installation. Please contact Noritz America at 866-766-7489 if you have 1 1 any questions or concerns. 1 Gas Type The gas type indicated on the water heater rating plate (NG or LP) must match the type of gas being supplied to the water heater. Gas Conversions If the gas type supplied does not match the gas type on the rating plate,contact your water heater supplier for a replacement unit with the proper gas type. If a gas type conversion must be made,there are conversion kits available for some models. [The conversion kit shall be installed by a qualified service agency in accordance with the manufacturer's instructions and all applicable codes and requirements of the authority having jurisdiction. The qualified service agency is responsible for the proper installation of this kit. Improper installation of this kit will void the warranty. Conversion kits will only be shipped directly to the Distributor or Agency performing the conversion.] Meter The gas meter must be sized properly for the water heater and other gas appliances to operate properly. Select a gas meter capable of supplying the entire btuh demand of all gas appliances in the building. � - - - - - - - - - - - &CAUTION - - - - - - - - - -- � Regulators 1 Ensure that all gas regulators used are operating properly and providing gas pressures within the specified 1 1 range of the water heater being installed. Excess gas inlet pressure may cause serious accidents. 1 r - - - - - - - - - - - WARNING - - - - - - - - - - - - Pressure 1 Check the gas supply pressure immediately upstream at a location provided by the gas company. Supplied 1 1 gas pressure must be within the limits shown in the specifications section with all gas appliances operating. 1 1 The inlet gas pressure must be within the range specified.This is for the purposes of input adjustment. Low 1 1 gas pressure may cause a loss of flame or ignition failure at other appliances in the home,which may result 1 1 in unburned gas in the home. Serious accidents such as fire or explosion may result. 1 1 Measuring Gas Pressure 1 1 In order to check the gas supply pressure to the unit, a tap is provided on the gas 1 inlet. Remove the 9/32" hex head/Philips screw from the tap, and connect a 1 1 manometer using a silicon tube. Open up at least 2 fixtures and hold in the maximum 1 1 manifold pressure button on the circuit board. Please call Noritz for details. 1 19 - - - - - - - - - - - All WARNINGa - - - - - - - - - - Pressure Test 1 The appliance and its gas connections must be leak tested before placing the appliance in operation. I The appliance must be isolated from the gas supply piping system by closing its individual manual I shutoff valve during any pressure testing of the gas supply piping system at test pressures equal to I 1 or less than 1/2 psig (3.5 kPa). We do not recommend pressure testing in excess of'/psig (3.5kPa). I If it must be done, the appliance and its individual shutoff valve must be completely disconnected I from the gas supply piping system during the test process. I Pipe Sizing/Flexible Connectors I A gas shutoff valve must be installed on the supply line. Gas flex lines are not recommended unless I the minimum inside diameter is 3/a" or greater and the rated capacity of the connector is equal to I 1 or greater than the BTU capacity of the water heater. Gas piping shall be in accordance with local I 1 utility company requirements and/or in the absence of local codes, use the latest edition of National I 1 Fuel Gas Code (NFPA54GC),ANSI Z223.1. In Canada, use the latest edition of CSA B149.1, National 1 Gas and Propane installation code. Size the gas line according to total btuh demand of the building 1 and length from the meter or regulator so that the following supply pressures are available even at maximum demand. Natural Gas Supply Pressure LP Gas Supply Pressure 1 Min 4 WC Min 8 WC 1 Max 10.5" WC Max 14" WC 1 Reference Tools & Sample Calculations r - - - - - - - - - - - CAUTION - - - - - - - - - - - - 1 The tables and samples below are for reference only. The professional sizing and installing the gas line should always run the appropriate calculations before all installations. Which Table to Use • For NG installations with the initial supply pressure at point of delivery (at the meter, for example) is less than 8"WC, use the 0.5"WC pressure drop table (Table 1). • For NG installations with the initial supply pressure at point of delivery is greater than or equal to 8" WC, use the 3.0" pressure drop table (Table 2). • For all LP installation use (Table 3) The inlet pressure must be at least 5"WC for NG or 8"WC for LP for all appliances in the gas system. If the inlet gas pressure drops below 5"WC for NG or 8"WC for LP, the heater may continue to operate, but the other appliances in the house may experience flame loss or ignition failure, which can result in gas leakage into the home. Refer to the NFPA 54 for details. Please contact Noritz for details. For corrugated stainless steel tubing (CSST) capacity tables, please consult with the manufacturer. 20 Table 1. For Less than 8"WC initial supply pressure Maximum Natural Gas Delivery Capacity(0.5"Pressure Drop) Length includin fittings) Pipe 10' 20' 30' 40' 50' 60' 70' 80' 90' 100' 125' Size (3m) (6m) (9m) 12m) (15m) 08m) (21 m) (24m) (27m) (30m) (38m) 3/4" 360 247 199 170 151 137 126 117 110 104 92 1" 678 466 374 320 284 257 237 220 207 195 173 11/4" 1,390 957 768 657 583 528 486 452 424 400 355 11/2" 1 2,090 1,430 1,150 985 873 791 728 677 1 635 600 532 2" 4,020 2,760 2,220 1 1,900 1,680 1,520 1,400 1,300 1,220 1,160 1,020 21/2" 6,400 4,400 4,400 3,020 2,680 2,430 2,230 2,080 1,950 1,840 1,630 3" 11,300 7,780 7,780 5,350 4,740 4,290 3,950 3,760 3,450 3,260 2,890 4" 23,100 15,900 12,700 10,900 9,660 8,760 8,050 7,490 7,030 6,640 5,890 Values in Table are in Cubic Feet of Gas per Hour(0.60 Specific Gravity,0.5"Pressure Drop,inlet pressure less than 2psi).Contact your gas supplier for BTU/Cubic Foot ratings.For simplification of your calculations,1 Cubic Foot of Gas is approximately equivalent to 1000 BTU. Sample Gas Line Instructions Noritz Condensing Tankless Gas Water Heater 1.Size each outlet branch starting from the furthest (157,000 Btuh) Barbecue using the Btuh required and the length from the meter. (50.000 Btuh) 2.Size each section of the main line using the length to Ouuet E Outlet A the furthest outlet and the Btuh required by everything Clothes Dryer I after that section. 10'(3m) (35,000 Btuh) 10'(3m) Sample Calculation-(Using 0.5"WC Pressure Drop Table) Outlet C s'(1.5m) Outlet A:45'(13.5m)(Use 50'(15m)),50,000 Btuh requires 1/2" Section 4 Section 3 Section 2 I Section 1 Outlet B:40'(12m),65,000 Btuh requires 112" _ m)_ -5(1.5m). _5'(1.5m)_ -10'(3m) - Section 1:45'(13,5m)(Use 50'(15m)),115,000 Btuh requires 3/4" 1 I Outlet C:30'(9m),35,000 Btuh requires 112" 5'(1.5m) s'(1.1m) Section 2:45'(13,5m)(Use 50'(15m)),150,000 Btuh requires 3/4" Outlet D 1 outlet B I Outlet D:25'(7.5m)(Use 30' 9m 25,000 Btuh requires 112" 10'(3m) Gas Fireplace Gas Range Stove ( ( )) q p 9 Section 3:45'(13.5m)(Use 50'(15m)),175,000 Btuh requires 1" (25,000 Btuh) (65,000 Btuh) Outlet E:25'(7.5m)(Use 30'(9m)) 157,000 Btuh requires 3/4" Natural Gas Section 4:45'(13.5m)(Use 50'(15m)),332,000 Btuh requires 11/4" Meter Table 2. For 8"WC-10.5"WC initial supply pressure Maximum Natural Gas Delivery Capacity(3.0"Pressure Drop) Length (including fittings) Pipe 10' 20' 30' 40' 50' 60' 70' 80' 90' 100' 125' Size (3m) (6m) (9m) (12m) (15m) (18m) (21 m) (24m) (27m) (30m) (38m) 1/2" 454 312 250 214 190 172 158 147 138 131 116 3/4" 949 652 524 448 397 360 331 308 289 273 242 1" 1 1,787 1,228 986 844 748 678 624 580 544 514 456 11/4" 3,669 2,522 1 2,025 1,733 1,536 1,392 1,280 1,191 1,118 1,056 936 11/2" 5,497 3,778 3,034 2,597 2,302 2,085 1,919 1,785 1,675 1,582 1,402 2" 10,588 7,277 5,844 5,001 4,433 4,016 3,695 3,437 3,225 3,046 2,700 21/2" 16,875 11,598 9,314 7,971 7,065 6,401 5,889 5,479 1,540 4,856 4,303 3" 29,832 20,503 16,465 14,092 12,489 11,316 10,411 9,865 9,087 8,584 7,608 4" 1 43678 -30,020 24,107 1 20,632 1 18,286 16,569 15,243 14,181 13,305 1 12,568 11,139 Values in Table are in Cubic Feet of Gas per Hour(0.60 Specific Gravity,3.0"Pressure Drop,8.0"WC or greater supply pressure,inlet pressure less than 2psi). Contact your gas supplier for BTU/Cubic Foot ratings. For simplification of your calculations,1 Cubic Foot of Gas is approximately equivalent to 1000 BTU. Sample Gas Line Instructions Nodtz Condensing Tankless Gas Water Heater 1.Size each outlet branch starting from the furthest (157,000 Btuh) Barbecue using the Btuh required and the length from the meter. Outlet E (50,000 Btuh) 2.Size each section of the main line using the length to ouaetA I the furthest outlet and the Btuh required by everything Clothes Dryer after that section. 10'(3m) (35,000 Btuh) 10'(3m) Sample Calculation(Using 3.0"WC Pressure Drop Table) Outlet C s'(1.5m) Outlet A:45'(13.5m)(Use 50'(15m)),50,000 Btuh requires 1/2" Section 4 Section 3 Section 2 I Section 1 Outlet B:40'(12m),65,000 Btuh requires 112" _5'(1.Sm). _5'(1.Sm)_ 10'(3m) Section 1:45'(13.5m)(Use 50'(15m)),115,000 Btuh requires 1/2" 1 I Outlet C:30'(9m),35,000 Btuh requires 1/2" s'(1.5m) s'(1.5m) Section 2:45'(13.5m)(Use 50'(15m)),150,000 Btuh requires 1/2" (3m) Outlet D 1 Outlet B I Outlet D:25'(7.5m)(Use 30' 9m 25,000 Btuh requires 1/2" a Stove 10' Gas Fireplace Gas Ran (zs,000 Btuh) g Section 3:45'(13.5m)(Use 50'(15m)) 175,000 Btuh requires 1/2" (65,000 Stub) Outlet E:25'(7.5m)(Use 30'(9m)),157,000 Btuh requires 1/2" Natural Gas Section 4:45'(13.5m)(Use 50'(15m)),332,000 Btuh requires 3/4" Meter 21 Table 3.Maximum Undiluted Propane(LP) Delivery Capacity in Thousands of BtuH (0.5"WC Pressure Drop) Len th includin fittin s Pipe 10' 20' 30' 40' 50' 60' 70' 80' 90' 100' 125' 1 150' 200' Size (3m) (6m) (9m) (12m) (15m) (18m) (21 m) (24m) (27m) (30m) (38m) (45m) (60m) 1/2" 275 189 152 129 114 103 96 89 83 78 69 63 55 3/4" 567 393 315 267 237 217 196 185 173 162 146 132 112 1" 1 1,071 1 732 590 504 448 409 378 346 322 307 275 252 213 11/4" 2,205 1,496 1,212 1039 913 834 771 724 677 630 567 511 440 11/2" 3,307 2,299 1,858 1,559 1,417 1,275 1,181 1,086 1,023 976 1 866 787 675 2" 6,221 4,331 3,465 2,992 2,646 2,394 2,205 2,047 1,921 1,811 1 1,6061 1,496 1,260 For reference only. Please consult gas pipe manufacturer for actual pipe capacities. -- - - - - - - - - - CAUTION - - - - - - - - - - - , Final Check ' When the installation is complete, verify that inlet gas pressure for the entire gas system does not drop below 5" WC for NG or 8" WC for LP at all appliances. This can be tested by turning on all gas burning appliances including the water heater, then check the inlet pressure at each appliance to verify all appliances are receiving a minimum of 5" WC for NG or 8" WC for LP. If all appliances are not receiving the minimum inlet pressure the gas piping system may need to be changed. 22 !�:� O Installation and service must be,perforrne..by a qualifietl plumber. In the, Commonwealth of Massachusetts,this product must be installed by a licensed ' Water. P plumber or gas fitter in accordance with the Massachusetts Plumbing and Fuel p g' Gas Code 248 CMR Sections 2.00 and 5.00Observe all'_applicable codes. This appliance is suitable for combination potable water and space heating applications. It cannot be used for space heating applications only. Do not use this appliance if any part has been underwater. Immediately call a qualified service technician to inspect the appliance and replace any part of the control system and gas control which has been under water. If the water heater is installed in a closed water supply system, such as one having a backflow preventer in the cold water supply line, means shall be provided to control thermal expansion. Contact the water supplier or a local plumbing inspector on how to control this situation. A pressure relief valve must be installed near the hot water outlet that is rated in accordance with and complying with either The Standard for Relief Valves and Automatic Shutoff Devices for Hot Water Supply Systems, ANSI Z21.22, or The ANSI/ASME Boiler and Pressure Vessel Code, Section IV (Heating Boilers). This pressure relief valve must be capable of an hourly Btu rated temperature steam discharge of 157,000 Btuh. Multiple valves may be used.The pressure relief capacity must not exceed 150 psig. No valve shall be placed between the relief valve and the water heater.The relief valve must be installed such that the discharge will be conducted to a suitable place for disposal when relief occurs. No reducing coupling or other restriction may be installed in the discharge line. The discharge line must be installed to allow complete drainage of both the valve and the line. If this unit is installed with a separate storage vessel,the separate vessel must have its own temperature and pressure relief valve.This valve must also comply with The Standard for Relief Valves and Automatic Gas Shutoff Devices for Hot Water Supply Systems,ANSI Z21.22. (in the U.S. only).A temperature relief valve is not required, but if one is used, do not install the valve with the probe directly in the flow of water.This may cause unwarranted discharge of the valve. Piping and components connected to the water heater shall be suitable for use with potable water. Toxic chemicals,such as those used for boiler treatment,shall not be introduced into the potable water. A water heater used to supply potable water may not be connected to any heating system or components previously used with a nonpotable water heating appliance. When water is required in one part of the system at a higher temperature than in the rest of the system, means such as a mixing valve shall be installed to temper the water to reduce the scald hazard. • Flush water through the pipe to clean out metal powder, sand and dirt before connecting it. • Perform the following insulation measures for prevention of freezing. - Take appropriate heat insulation measures (e.g.,wrapping with heat R insulation materials, using electric heaters) according to the climate Completely insulate D not cover the water of the region to prevent the pipe from freezing. the water inlet and drain plug with insulation - Make sure that there are no water leaks from the cold and hot water outlet fittings. �, so that water in the pipe supply pipes,then insulate the pipes completely. can be drained. - Be sure to also completely insulate the water supply valve and the cold and hot water connections on the water heater(refer to the figure Insulate the water supply valve completely. on the right). - Do not cover the water drain plug with insulation so that water in the pipe can be drained. (Refer to the figure in the right.) - - • Use a union coupling or flexible pipe for connecting the pipes to reduce the force applied to the piping. • Do not use piping with a diameter smaller than the coupling. • When feed water pressure is too high, insert a depressurizing valve, or take water hammer prevention measure. • Avoid using joints as much as possible to keep the piping simple. • Avoid piping in which an air holdup can occur. • If installing the unit on a roof: • About lower-level hot water supply If the unit is installed on a roof to supply water to the levels below, make sure that the water pressure supplied to the unit does not drop below 29 psi. It may be necessary to install a pump system to ensure that the water pressure is maintained at this level. Check the pressure before putting the unit into operation. Failure to supply the proper pressure to the unit may result in noisy operation, shorter lifetime of the unit, and may cause the unit to shut down frequently. 23 Supply water piping Hot water piping • Do not use PVC, iron, or any piping which has been • Do not use lead, PVC, iron or any piping which treated with chromates,boiler seal or other chemicals. has been treated with chromates, boiler seal or • Mount a check valve and a shut off valve(near the inlet). other chemicals. • In order for the client to use the water heater ' The longer the piping, the greater the heat loss. comfortably, 98.1 to 491 kPa (14 to 70 PSI) of Try to make the piping as short as possible. pressure is needed from the water supply. • Use mixing valves with low water resistance. Be sure to check the water pressure. If the Use shower heads with low pressure loss. water pressure is low, the water heater cannot . If necessary, use a pump or other means to ensure perform to its full capability, and may become a that the supply water pressure to the inlet of source of trouble for the client. the heater does not fall below 29 PSI when the Drain piping maximum amount of water is being demanded. • Expansion water may drop from the pressure Also install a pressure meter on the inlet. If this relief valve and wet the floor. is not done, local boiling will occur inside the If necessary, provide drain piping or use a drain water heater causing abnormal sounds and hose to remove the water. decreasing the durability of the heat exchanger. Freeze Prevention • Freezing is prevented within the device automatically unless the outside temperature without wind is below-30'F (-35°C). *When combustion air is supplied from the indoors,the room temperature must be greater than 32°F (0°C) to prevent freezing and the room inside must not have negative pressure. • If this model is installed in an area where the outside temperature can approach freezing conditions of-30'F (-35°C) or below, then additional freeze protection measures must be used. For temporary freeze protection measures, refer to the Owner's Guide. • The freeze prevention heaters will not prevent the plumbing external to the unit from freezing. Protect this plumbing with insulation, heat tape or electric heaters, solenoids, or pipe covers. • In order for the freeze prevention heaters to operate, the water heater must have power at all times. 24 v Water Treatment If this water heater will be installed in an application where the supply water is hard, the water must be treated with either the Noritz H2Flow or ScaleShield or a water softener. Refer to the below tables for suggested treatment and maintenance measures to be taken based on the water hardness level. Damage to the water heater as a result of water in excess of 12 gpg (200 mg/L) of hardness is not covered by the Noritz America Limited Warranty. Note: Water softeners may be regulated by the local water jurisdiction, consult with the manufacturer for code, sizing, and installation guidelines; the below diagram is for reference only. For more information about H2FIow and ScaleShield, contact Noritz America at 866-766-7489. Residential Use Treatment Guidelines Commercial Use Treatment Guidelines Hardness Treatment Flush Hardness Treatment Flush Type of Water I Level Device Frequency" Type of Water Level Device Frequency* Soft 0-1(0-17 mg9L) None None Soft (0�1 mg9L) None None Slightly Hard (17 3 gpg/L) None None Slightly Hard (17-3 gpg/L) None None Moderately 3-7 9p9 H2FIow or Once a Year" Moderately 3-7 gpg H2FIow Once a Year" Hard (51-120 mg/L) ScaleShield Hard (51-120 mg/L) Suggested Hard 7-10 gpg H2 Flow or Once a Year" 7-10 (120-171 mg/L) ScaleShield Hard gpg H2FIow (120-171 mg/L) Suggested Twice a Year- 10-14 gpg Treatment Very Hard ( mg/L)m /L) Very Hard H2FIow H2FIow Required 10-14 gpg Treatment Extremely >14 gpg Treatment (171-239 m /L) Required Hard (>239 mg/L) H2FIow Required Extremely >14 gpg Treatment Hard (>239 mg/L) H2FIow Required Install Noritz Isolation Valves to allow for Flushing. Install Noritz Isolation Valves to allow for flushing. "Flushing is required if a water treatment device is not installed. ••Flushing is required if a water treatment device is not installed. Water Treatment System 00 Shutoff Valve NORITZ �— Da �— Condensing Cold to Water City Water Supply Tankless Gas Heater Water Heater 11 Optional Sediment Filter ti Pressure Relief Shutoff Valve Valve >4 Water Treatment Device Hot Water to Fixtures Drain —> ♦The illustration is an example. Please check with the actual water heater about the position of piping, and form. 25 10, Gb:: ndensate Pi in 33 ! CAUTION FDuetocidic nature of the condensate, be sure to properly drain and if necessary, treat the rior to disposal. Damage caused by improperly handled condensate is not covered ty. • This water heater is a high efficiency, fully condensing appliance which produces acidic condensate during operation. The water heater incorporates a collection and removal system which must be properly drained in order to ensure proper operation of this appliance. • The pH level of the condensate is approximately 2-3. An external neutralizer must be installed on the drain piping prior to disposal when required by local code or when the condensate could cause damage. • If an external neutralizer is installed, periodic replacement of the neutralizing agent will be required. Refer to the instructions supplied with the neutralizer for suggested replacement intervals. • In order to drain the condensate, a 1/2"threaded fitting is provided at the base of the water heater. Do not reduce the size of this fitting or the drain piping to less than 1/2". In cold climates, do not drain the condensate to the outdoors. If the drain pipe freezes during cold weather, the pipe will not drain condensate and the unit will stop operating. • Use plastic pipe, such as PVC, for the drain line. Do not use steel, black iron, or any other material which can corrode when placed into contact with acidic condensate. • Keep the length of the drain pipe as short as possible. Long runs or applications where the nearest drain is above the water heater will require the use of a condensate pump. Size the pump to allow for a maximum condensate discharge of 0.8 GPH from the water heater. • Horizontal runs must be sloped 1/4" per foot towards the drain or condensate pump. The condensate will be discharged by gravity force only. Make the drain pipe run as short as possible. • The end of the drain pipe must not be submerged in water or blocked in any way. To ensure proper drainage, leave the end of the drain pipe open to the atmosphere. Do not have a trap. Also, make sure that there are no obstructions blocking the drain line from discharging condensate. • Be sure to check that condensate is freely flowing from the drain piping after the system has been installed. Condensate will begin flowing out of the water heater within 15 minutes after operation has started. • Take measures to prevent the condensate drain lines from freezing (insulation, heat tape, electric heaters, etc.). ■ Do not pitch the drain line up once a horizontal section has Water heater been introduced.Always pitch the drain line down to ensure proper drainage. Drain connecting supply Heat insulation o 0 material Drain pipe Drain pipe 26 ♦The illustration is an example. Please check with the actual water heater about the position of piping, and form. Condensate piping to floor drain Condensate piping with pump Dis la window Dis la window •USE NON-CORROSIVE MATERIALS •USE NON-CORROSIVE MATERIALS •DO NOT REDUCE TO LESS THAN 112" •DO NOT REDUCE TO LESS THAN 112" •KEEP AS SHORT AS POSSIBLE •KEEP AS SHORT AS POSSIBLE 1/2"PVC i e 112"PVC pipe DO NOT ADD DO NOT INSERT DO NOT AD ANY VALVES x THE END OF ANY VALVEDS ) `—� DRAIN PIPE INTO X09 THE FLOOR DRAIN 0 3/8"ID tubing' Slope pipe downwards Slope pipe downwards Condensate um 1/4 erfoot.ormore. 'MAINTAINCLEARANCE 1/4 erfoot.ormore. Floor drain The end of the drain pipe must have an air gap.1"or more. The end of the drain pipe must / have an air a .1"or more. •Install tubing according to pump manufacturer's Instructions. Note; If the drain line becomes clogged or frozen, condensate will back-up into the water heater and a "29" error code will flash on the Display Window, ceasing operation. If this occurs, clear the clog or freeze so that condensate can freely flow. Be sure to slope the drain pipe, use the appropriate size pipe, allow the proper clearances, and apply freeze prevention measures (when necessary) to prevent the drain line from clogging or freezing. ♦The illustration is an example. Please check with the actual water heater about the position of piping,and form. 27 Plumbing Applications Recirculation System Notes: 1.Size the pump to provide a maximum of 1.5GPM (5.7Umin.)through the system at 1 Oft(0.3m)of Hot Water Return head plus piping losses. Adjust the Flow using a globe valve and verify the NORITZ Cold Water Supply Flow rate with the maintenance monitors. Condensing Tankless Gas 2.Set the Aquastat[0 10'F below the set output tHeate,, temperature. Fixtures 3.Noritz recommends the use of an Isolation Kit with the installation. These kits include an integrated shut-off and service valve with unions and a pressure relief valve. Expansion Tank Isolation (Install according Pi Kit('3) to local code) Pump�I+Gas Supply --------i Globe I Aquastat('2) Valve I 120VAC b II Pump('1) Optional 8-10 Gallon Storage Tank (To alleviate cold water sandwich) Aquastat Wiring Use Honeywell Aquastat Hot Water (Model L6006A or 1-6006C) Combination Potable Water and Space Heating System Notes: 1.Noritz recommends the use of an Isolation Kit with the installation. These kits include an integrated shut-off and service valve with unions and a pressure relief valve. 2.Size the pump to provide a maximum of 2 GPM Air Handler (7.5 Umin.)with a head pressure equal to the loss rNORITZ through the water heater and Air Handler. Condensing 3.Check valve required if it is not included with the pump. Tankless Gas 4.Set the flow switch to deactivate the Air Handler when Water Heater the domestic hot water flow reaches 2 GPM(7.5 L/min.). Adjust as necessary to prevent cycling. a 5.If the system requires water for space heating at a higher temperature than for other uses,means such as a I mixing valve shall be provided to temper the water for i the other uses to help prevent scalding. Pump(•2) ---- -� 6.Expansion tank required if a backflow preventer is installed. Isolation 7.The water heater cannot be used for space heating Kit('1) i i Check i applications only. Valve('3) i 6.Only POTABLE water may be plumbed through L-- -- p�- Gas Supply the water heater. Flow Switch('4) Backflow Preventer (optional) Cold Water Optional Supply Expansion Tank('6) T TE-177-11 Mixing Valve('5) Hot Water Fixtures 28 ♦The illustration is an example. Please check with the actual water heater about the position of piping, and form. �eCtr� Consult a qualified electrician C 1 2;■ E` C 1 ,V for the electrical work Do not connect electrical power to the unit until all electrical wiring has been completed. Disconnect Power This appliance must be electrically grounded in accordance with local codes, or in the absence of local codes, with the National Electrical Code,ANSI/NFPA 70. In Canada,the latest CSA.C22.1 Electrical Code._ Caution: Label all wires prior to disconnection when servicing controls. Wiring errors can cause improp- er and dangerous operation. Verify proper operation after servicing. Field wiring to be performed at time of appliance installation. & WARNING Fonot hock Hazard power on until electrical wiring is finished. Disconnect power before servicing. to do so may result in death or serious injury from electrical shock. • The electrical supply required by the water heater is i Do not let the power cord contact 120VAC at 60 Hz. the gas piping. The power consumption may be up to 194W , r 7 Use an appropriate circuit. I Tie the redundant power cord out- Do not disconnect the power supply when not in use. When ; side the water heater. Putting the the power is off, the freeze prevention in the water heater redundant length of cord inside the ' will not activate, resulting in possible freezing damage. , water heater may cause electrical interference and faulty operation, Ground • To prevent electrical shock, provide a ground with resistance less than 100s2.An electrician should do this work. 1 Do not connect the ground to the city water or gas piping. Do not tie the ground to a telephone line. 1 Breaker Installation • Mount a device which shuts off the electrical path automatically (leakage breaker) when electrical leakage is detected. &CAUTION Electrostatic discharge can affect electronic components. Take precautions to prevent electrostatic discharges from personnel or hand tools during the water heater installation and servicing to pro- tect product's electronic control. 29 Adjusting Set Temperature • This unit can be programmed so that it will default to one of four temperatures if the optional remote controller is not used [140 OF (60 °C), 135 OF (57 °C), 130 OF (55 °C), 120 OF (50 °C)]. To change the default temperature, adjust the DIP switches as described below.The default temperature is 120 OF(50°C). 1. Disconnect electrical power to the water heater. 2. Remove the front cover of the water heater (4 screws). 3. Disconnect the optional remote controller.Adjust the DIP switches as illustrated below. 4. Replace the front cover of the water heater (4 screws). 5. Reconnect electrical power to the water heater. 0 0 0 (9 0 of 0 0 ° e : WA � °• ® 0 00 0 00 0 0 0 'Do not change any other DIP switches. O OFF • o O ON High temperature. 00 1 2 120'F(509C) Q Q o 130°F(55`t;) 0 O o 0 O n 135°F(57C) 0 Q 140-F(WC) Q O O ON-DOFF-Q " - ------------------ •Applicable Model Noritz Condensing Tankless Gas Water Heater * Remarks [125 OF 155 °C] Optional remote controller RC-7651 M t-Celsius display mode Fahrenheit display mode Install the optional remote controller according to the instructions in the Installation Guide (p. 35). * Only one remote controller can be connected to the water heater. A malfunction may occur if two or more remote controllers are connected. * The water heater has been factory set to allow a maximum temperature setting of[120 OF/50 °C]. To access higher temperature settings through the optional remote controller, follow the below steps. <When setting the maximum temperature to [125-140 OF/55-60 °C]> 1. Turn the water heater off by pressing the Power On/Off Button on the optional remote controller. 2. Press and hold'the FLOW METER ALARM SET Button until a sound is heard (2 sec.)and [120 °F/50 °C] appears on the display. 3. Set the upper limit of the hot-water supply temperature to [125 OF, 130°F, 135 *F or 140 °F/55 *C or 60'Cl using the UP and DOWN setting Buttons. 4. To put the water heater back into operation, press the Power On/Off Button on the optional remote controller. To keep the water heater off, let the unit sit for 30 sec. to return to the original display. - - - - - - - - - - DANGER - - - - - - -- - - • When changing the temperature, make sure to confirm with the customer that the temperature of the hot water will be very high and that there is a risk of scalding. • Hot water heater temperatures over 125 OF (52 °C) can cause severe burns instantly or death from scalding. 30 Connecting Remote Controller Cord to Unit ' • Keep the remote controller cord away from the freeze prevention heaters in the unit. • Tie the redundant cord outside the water heater. Do not put the extra length inside the equipment. ' • The remote controller cord can be extended up to 83' (25m)with 18AWG wire. • Use a Y type terminal with a resin sleeve. (Without the sleeve, the copper wire may corrode and cause problems). ' • Be sure to hand tighten when screwing to the terminal block. Power tools may cause damage to ' the terminal block. Remote controller cord • For extensions, a 26' (8m) cord (Part# RC-CORD26) or 10' (3m) cord (Part# RC-CORD10) can be purchased or use 18AWG wire. • Install according to the National Electrical Code and all applicable local codes. 1. Disconnect electrical power to the water heater. Remote Remote Controller Cord 2. Leave enough slack so that the remote controller Controller cord will not be damaged if the unit is removed Terminals ® Cord Clamp from the wall. 3. Remove the front cover of the heater (4 screws). o 4. Pass the remote controller cord through the wiring �° throughway and into the unit. o • o 5. Connect the Y terminals at the end of the remote o controller cord to the terminal block. 6. Secure the remote controller cord with a clamp. Wiring 7. Replace the front cover. Throughways 18AWG Wire ■Changing Other Features Adjusting the Temperature Display Note:The setting must be done within the first 10 minutes of connecting electrical power.to the water heater. Table of Setting Items Ilemllo. Item Choices(factory defaults shaded) Celsius/Fahrenheit 2 display mode. F(Fahrenheit) °C(Celsius) ■ Remote Controller Setting Button UP POWER oaeloAlry oau�al ON DisplayAA ONIOFF Power On/Off Button °F/'C V ( DOWN ROWNEfEA Flow Meter Alarm Set buttton AIII�J SR ■ Setting Procedure 1.Turn the water heater off by pressing the Power On/Off Button on the remote controller. 2. Disconnect, then reconnect electrical power to the water heater. 3. Press the Flow Meter Alarm Set Button and hold it in for 2 seconds or more. 4. Press the Flow Meter Alarm Set Button until the remote controller displays item number"12". 5. Press Setting Button "A'for 5 seconds or more to change the display units to °F. 6. Press Setting Button "V"for 5 seconds or more to change the display units to °C. 7. To confirm the setting, turn the water heater on by pressing the Power On/Off Button on the remote controller. 31 3 Periodically check e::.following to erisure proper 3, Maintenance operation of the water heater. • The venting system must be examined periodically by a qualified service technician to check for any leaks or corrosion. • The burner flame must be checked periodically for a proper blue color and consistency. • If the flame does not appear normal, the burner may need to be cleaned. • If the burner needs to be cleaned, it must be performed by a qualified service technician. • Do not obstruct the flow of combustion and ventilation air. • The pressure relief valve must be operated once a year to ensure that it is functioning properly and there is no obstruction.Turn the power off to the unit before opening the relief valve, and make sure that water draining out of the valve will not cause any damage. • If the relief valve discharges periodically, it may be due to thermal expansion in a closed water system. Contact the water supplier or a local plumbing inspector on how to correct this situation. Do not plug the relief valve. • See Operation Manual for further maintenance. Warning: There is a scald potential if the output temperature is set too high. Should overheating occur,or the gas supply fail to shut off,turn off the manual gas control valve to the appliance. Do not use this appliance if any part has been under water. Immediately call a qualified service technician to inspect the appliance and to replace any part of the control system and any gas control which has been under water. Periodically check and clean the filter inside the cold water inlet of the unit. The installer should test operate the unit,ezplahto O'Deration. the customer how to use the umt,anal give the Owner`s Guide before leaving the installation„ • Preparation ........... (1) Open a hot water fixture to confirm that water is available, and then close the fixture. (2) Open the gas supply valve. (3) Turn on the power supply. Using the optional remote controller, turn on the Power On/Off button (the Operation lamp will turn on). (1) Open a hot water fixture and confirm that the Burner On lamp comes on, and that hot water is being produced. (If necessary, repeat until the air in the gas piping is bled out). * White smoke may be noticed from the exhaust vent during cold weather. However, this is not a malfunction of the unit. * If an "11" error code appears on the Display Window, close a hot water fixture and then back on again, and then open a hot water fixture again. (2) Using the optional remote controller, change the temperature setting on the remote controller and check that the water temperature changes. • If the water heater does not operate normally, refer to"Troubleshooting" in the Owner's Guide. * After the trial operation, clean the filter in the cold water inlet. &CAUTION Handling after trial operation • If the unit will not be used immediately, close off all gas and water shutoff valves, drain all of the water out of the unit and the plumbing system to prevent the unit and system from freezing, and bleed the gas out of the gas line. Freezing is not covered by the warranty. 32 ! WARNING Afire or:explosion may result if these instructions are not followed, which may cause lose of life, peral injury or property damage. Lighting Instructions This water heater does not have a pilot. It is equipped with an ignition device that automatically lights the burner. Do not try to light the burner by hand. 1. Read the safety information in the installation manual or on the side of the water heater. 2. Turn off all electrical power to the unit. 3. Do not attempt to light the burner by hand. 4. Turn the gas control manual valve (external to the unit) clockwise to the off position. 5. Wait five minutes to clear out any gas. If the smell of gas remains, stop, and follow the instructions on page 3 of Owner's Guide. 6. Turn the gas control manual valve counterclockwise to the on position. 7. Turn on electric power to the unit. 8. The unit will now operate whenever hot water is called for. If the unit will not operate, follow the shutdown instructions and call a service technician. Shutdown Instructions 1. Stop any water demand. 2. Turn off electric power. 3. Turn the gas control manual valve clockwise to the off position. Should overheating occur, or the gas supply fail to shut off,turn off the manual control valve to the appliance. 33 3 ■ I 3 5. D�rnensions ,3 13.3" 338mm < inch (mm) > 4- 0.5" 13mm 2-0.3"X0.5" 6.5X13mm OBLONG HOLE 13.8" 350mm 4.7° 120mm 0.4" 10mm 6.7" 170mm 13.1" 334mm 3.3" 85mm E E E 3.5" 90mm 5.9" 150mm 4.9" 125mm 2.0°50mm 1.1° 28mm 3.5" 89mm 3.5" 89mm cZ; N aO AIR INLET FLUE COLLAR p � c ao E E E N C O co un M co N N 04 N DISPLAY WINDOW E 0.4° 10mm 2.4° 60mm c COLD WATER INLET 3.5" 90mm o WATER DRAIN VALVE WIRING THROUGHWAY 4.7° 120mm •�' (AC120V) /4-(pO.5" 0.3"X0.6" 6.5X16.5mm OBLONG HOLE 13mm HOT WATER OUTLET GAS INLET WATER DRAIN VALVE WATER DRAIN VALVE CONDENSATE DRAIN (WATER FILTER) HEIGHT OF EACH FITTING (VIEW FROM TOP) FROM BOTTOM OF CASE 11.7'(297mm NRC711-DV 10.0"(253mm) CONDENSATE DRAIN 0.8"(20mm) 4.1" 103mm HOT WATER OUTLET 1.8"(45mm) 3.8" 96mm CONDENSATE DRAIN 1/2" 1.2" 31mm GAS INLET 1/2" COLD WATER INLET 2.3"(58mm) GAS INLET 2.0"(50mm) E E E E E o~D V N V Q~i V m m (O OD HOT WATER OUTLET 3/4" COLD WATER INLET 3/4" WIRING THROUGHWAY 1 34 For Installers: Optional Remote Controller RC-7651 M Read this installation guide carefully before carrying out installation. Installation wide NORITt AMERICA CORPORATION r Note Do not connect power to the water heater before the remote controller has been property installed. Recommended installation location of the remote controller is in a bathroom. Included Parts List Part Name Quantity Wall Packing Connecting Wire Remote Controller 1 Wall Packing 1 Phillips Roundhead Wood Screw 2 Wall Anchor 2 Phillips Roundhead Wood Screw Wall Anchor r I Do not disassemble the remote controller. I Remote Controller L Notes on the Installation Location Connection of Remote Controller Cord • The remote should be installed in an easily White Connector ITo Remote controller accessible location. Y-shaped terminals To Water heater� • Avoid installing in a place where water or (two-core) steam can come into contact with the con- Confirm the connection with the labels at troller. both ends of the remote controller cord. • Avoid locations where special chemical • The remote controller cord can be purchased separately. agents (e.g., benzene, fatty and oily deter- 26' (8m) cord: (Part# RC-CORD26). gents) are used. 10' (3m) cord: (Part# RC-CORD1 0). • Avoid outdoor installation, or installation in • The remote controller cord can be extended up to 300 ft. an indoor location where it will be exposed (90m)by splicing the cord and using 18 gauge wire to to direct sunlight. extend the cord to the appropriate length, 35 Installation 1. Apply Wall Packing to the rear side of the 3. Remove the cover of the remote control, remote controller, mark the location of the screw holes, and 2. Connect the remote controller wires to the drill holes for the wall anchors. separate remote controller cord. 4. Insert the wall anchors, screw the remote control to the wall and replace the cover. Remote Control Wires Wall Packing Wall Anchor (take off the paper) of Remote Controller Cord Rear Side Remote Controller Phillips Roundhead Wood Screw 36