Tankless Water Heater - Waiwela

More documents

Recommendations

Info

Installing the water heater:CAUTION: This waterheater must only be used withthe following water supplysystem conditions:● With clean, potable waterfree of corrosive chemicals,sand, dirt or othercontaminates.● With inlet watertemperatures above 32°F(0°C), but not exceeding120°F (49°C).● Free of lime and scaledeposits.● DO NOT reverse the hotand cold water connections.The water heater willnot operate.Clean theWater FilterWater FilterWater InletCheck ValveNippleWaterNotice: Use only teflon tape oncold and hot water connections andlines.AirReliefValveHotWaterTapWater Supply Connections, continuedNotice: If the water flow resistance of ashower head is too high, the burner in thewater heater will fail to ignite. Keep theshower head clean from debris that couldcause additional pressure drop.Notice: If using mixing valves on theoutlet, choose one that prevents coldwater pressure from overcoming hot waterline pressure.Notice: If multiple water heaters areinstalled in a manifold system, thewater piping must be in “Parallel”. Awater pressure of 40 psi (276 kPa) isrecommended for each water heater forproper operation of the water heaters.Alternate Water Piping Arrangementwith Optional Valve KitValve kits may be purchased and installed asoptional items. Contact your distributor orplace of purchase for details.They allow forone person full diagnostic testing and easeof flushing the system. The kit includes twofull port isolation valves, one for the coldside and one for the hot side. Refer topage 22.Install a shutoff valve near the inlet ofthe water heater for service and drainingpurposes.It is not recommended to use pipes withsmaller diameters than the water supplyconnection of the water heater.Before connecting the water supply pipeto the water heater, open the shutoff valveand clean out sand, debris, air, caulkingmaterial, etc. inside the pipe. Connect tothe water inlet, then check water flow.Close the shutoff valve and clean thewater filter.Be sure to connect the water inlet and thehot water outlet as shown on the waterheater. If reversed, the water heater willnot function.Installation of unions or flexible copperconnections are recommended on theHOT and COLD water lines, so that thewater heater may disconnect easily forservicing, if necessary.Install a Check Valve between the waterheater and the water shutoff valve (see thetop left diagram).The following should be addressed inregards to the HOT WATER OUTLET:● Connections between the water heaterand point(s) of use should be as shortand direct as possible.● Local codes shall govern the exact typeof pipe material to be used for waterconnections.● To conserve energy and minimize heatloss, insulation of hot water piping isrecommended (see Hot and Cold PipeInsulation Installation on page 23).Notice: The flow rate of hot watermay vary when more than two faucets(appliances, fixtures, etc.) are being usedsimultaneously.Notice: The pipes MUST be completelydrainable. If the hot water faucets arelocated at a point higher than the waterheater, place a drain valve at the lowestpoint (see diagram at the left).Drain ValveThis appliance is notintended for space heatingapplication. Do notconnect this heater towaterlines previouslyused for space heatingor non-potable waterdistribution. All waterpiping and componentsshall be suitable forpotable water.16AP14558-1 (09_08) DV 66 Manual.indd 169/17/2008 3:07:59 PM
Drain Valveshown onright withouttubing.PressureReliefValveReliefValveDischargeLineDrainValveUnionWaterShutoffValveHot WaterSupplyOutletDrainTube tosuitabledrainColdWaterSupplyInletNotice: The above illustratesa pressure-only relief valve. Iflocal codes require a combinationtemperature and pressure reliefvalve be installed, an extensionpiece may be needed to ensure thatthe valve probe is not directly inthe flow path of the water.Relief ValveA new pressure relief valve, complyingwith the Standard for Relief Valves andAutomatic Gas Shut-Off Devices for HotWater Supply Systems, ANSI Z21.22/CSA 4.4, must be installed at the hot wateroutlet connection of the water heater atthe time of installation. Local codes shallgovern the installation of relief valves.For safe operation of the water heater, besure that:● The pressure rating of the relief valvemust not exceed 150 psi (1034 kPa), themaximum working pressure of the waterheater as marked on the rating plate.● The BTUH rating of the relief valve mustequal or exceed the BTUH input of thewater heater as marked on its rating plate.● No valve of any type should be installedbetween the relief valve and the waterheater● Discharge from the relief valve shouldbe piped to a suitable drain to eliminatepotential water damage. Piping used shouldbe of a type approved for the distribution ofhot water.● Hot and cold water lines should beinsulated up to the water heater. Referto page 23 for details.● The discharge line must beNO SMALLER than the outlet of therelief valve and must pitch downward toallow complete drainage (by gravity) ofthe relief valve and discharge line.● The end of the discharge line should notbe threaded or concealed and should beprotected from freezing. No valve of anytype, restriction or reducer coupling shouldbe installed in the discharge line.Notice: Local codes govern the installationof relief valves. If local codes require that atemperature and pressure relief valve shouldbe installed, the manufacturer recommendsa type 40XL Watts T&P relief valve or anequivalent model be used.Notice: Manual operation of relief valvesshould be performed at least once a year. Turnoff the electrical power and gas shutoff valve.Lift and release lever on the relief valve andcheck the manual operation of the relief valve.You should take precaution to avoid contactwith the hot water coming out of the reliefvalve and to prevent water damage.Notice: If the relief valve on the systemdischarges periodically, a problem exists andservice to the water system is required.The vinyl tubing as shown is supplied andconnects to the drain valve located at the hotwater outlet as shown in the diagram at left.Route the other end of the vinyl tubing to thedrain pan or a suitable drain where leakagefrom the heater will not result in damage tothe area adjacent to the heater or to lowerfloors of the structure.17AP14558-1 (09_08) DV 66 Manual.indd 179/17/2008 3:08:00 PM
Page 1 and 2: Direct Vent GasUse & Care ManualWit
Page 3 and 4: IMPORTANT SAFETY INFORMATION.READ A
Page 5 and 6: DANGER!Natural gas and liquefied pe
Page 7 and 8: Installing the water heater :This w
Page 9 and 10: The water heater must be installed
Page 11 and 12: GvHADVLEVBFCvvFIXEDCLOSEDOPERABLEBB
Page 13 and 14: Installing the water heater:94° El
Page 15: CAUTION:Reinforcement of the wall i
Page 19 and 20: WARNING: Field wiring connections a
Page 21 and 22: WARNING: Field wiring connections a
Page 23 and 24: WARNING: If localcodes require exte
Page 25 and 26: Lighting the water heater:Before op
Page 27 and 28: Notice: The remote controlcannot be
Page 29 and 30: Housekeeping, continuedCLEANING THE
Page 31 and 32: Before You Call For Service…Troub
Page 33 and 34: Replacement Parts:Direct Vent Water
Page 35 and 36: The content on this page is intende

Tankless Water Heater - Waiwela

Create successful ePaper yourself

Delete template?

Save as template?