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Interior components diagram

RTG 199 HE – 6 720 811 617 (2016/01)

51

13

Interior components diagram

13.1

Interior components

Fig. 79 Components

[1]

Exhaust temperature sensor

[2]

Flue gas collector

[3]

Heat exchanger

[4]

Ionization sensor

[5]

Primary fan (Mixer)

[6]

Hot water temperature sensor

[7]

LCD display

[8]

On/Off button

[9]

Reset button

[10] Program key
[11] Flue gas limiter
[12] Heat exchanger overheat sensor (ECO)

[13] Ignition electrodes
[14] Observation window
[15] Backflow temperature sensor
[16] Secondary air fan
[17] Gas valve
[18] Condensate trap
[19] Water valve with flow sensor and inlet temperature sensor
[20] Control unit
[21] Up button
[22] Down button
[23] LED

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Содержание RTG 199 HEN

Страница 1: ...d plumber or gas fitter Upon completion of the installation these instructions should be handed to the user of the appliance for future reference What to do if you smell gas Turn off the gas shut off...

Страница 2: ...2 Position of the fuses in control unit 34 6 Operation instructions 34 6 1 Description LCD Display 34 6 2 For your safety read before operating your water heater 35 6 3 Power 35 6 4 Temperature selec...

Страница 3: ...doors Inform a trained and certified installer Insufficient ventilation may cause toxic flue gas to escape Risk of poisoning Never close off or reduce the size of the air intake and outlet openings Th...

Страница 4: ...ter heater Select and install the automatic mixing valve in accordance with the valve manufacturer s recommendations and instructions Water exiting from drain valves can be extremely hot To avoid inju...

Страница 5: ...adjacent to the appliance or to lower floors of the structure When such locations cannotbeavoided itisrecommendedthatasuitable drainpan adequatelydrained beinstalledunderthe appliance The pan must no...

Страница 6: ...stics for troubleshooting informational purposes Built in freeze prevention Note The freeze prevention kit is designed to provide protection for the water heater down to approximately 5 F for short te...

Страница 7: ...in 94 Minimum Input BTU hr kW 19 900 5 8 Temperature Control Selection range F C 100 140 38 60 Default temperature F C 122 50 Stability F C 2 1 Gas Requirement Gas connection inches Peak load inlet g...

Страница 8: ...way valve or mixing valve must be installed before the appliance if inlet water temperature exceeds this limit 3 3 2 Remove front cover Loosen the two Phillipshead screws located on bottom rearof cove...

Страница 9: ...ater during any pressure testing at pressures in excess of Psig 3 5 kPa 6 Keep water heater area clear and free from combustibles and flammable liquids Do not locate the heater over any material which...

Страница 10: ...etermine the venting combustion air point of termination then design the piping layout back to the heater NOTICE Do not reduce the exhaust or combustion air vent pipe sizes Donotcommonventwithanyother...

Страница 11: ...oncentric vent air intake body can be ordered from your local wholesaler The appliance can also be installed with separate air intake and exhaust piping see fig 12 fig 19 and fig 20 page 18 in PP PVC...

Страница 12: ...ows allowed in either the exhaust or combustion air piping Calculation example for 3 PVC CPVC or ABS venting Exhaust Diam Approved terminals E x h a u s t 3 or 4 inches T terminal 2 3 or 4 inches 90 e...

Страница 13: ...bow reduction 5 Total 53 Table 17 For this example the maximum allowable exhaust pipe length is 53 feet System used Twin pipe Number of 90 elbows needed 2 Number of 45 elbows needed 2 Table 18 Calcula...

Страница 14: ...ertical clearance to ventilated soffit located above the vent termination within a horizontal distance of 2 feet 61cm from the center line of the termination E Clearance to unventilated soffit F Clear...

Страница 15: ...earance to unventilated soffit F Clearance to outside corner G Clearance to inside corner H Clearance to each side of center line extended above meter regulator assembly 36 in within a height 15 feet...

Страница 16: ...mination 2 Minimumabovegroundornormallyexpectedsnowaccumulation level 3 Appliance 4 Elbow note minimum 1ft of straight vent pipe required 5 Horizontal run per foot down to termination Fig 14 Horizonta...

Страница 17: ...d andinstall3 air intake pipe over the accessory Fig 18 Inlet connection 4 3 5 Connecting the condensate water drain NOTICE Risk of appliance freezing Single pipe penetration should be used in non fre...

Страница 18: ...PVC and ABS systems In cold climates components of a tankless water heater can freeze and burst from negative draft A leading cause of negative draft is combustion appliances inthe building not being...

Страница 19: ...ion as exhaust flow Ifinstalledhorizontally theaxismustbehorizontalorslightlypitched up towards termination to ensure damper closes 100 when heater is not running To allow accessibility damper must no...

Страница 20: ...ty wall space is available a powder coated steel racking system is also available for water heaters in side by side or back to back configurations See the respective product brochure for details Fig 2...

Страница 21: ...ximum power fan speed P1 Maximum power fan speed P1 0 2000 ft 0 610 m Twin system 3 5 11 ft 123 173 523 523 12 19 ft 123 173 523 523 2000 4500 ft2 610 1372 m 2 When installing in altitude the unit may...

Страница 22: ...um power fan speed P2 Maximum power fan speed P1 Maximum power fan speed P1 0 2000 ft 0 610 m Concentric 3 5 39 ft No modification required No modification required No modification required No modific...

Страница 23: ...ed in a room or structure separate from the dwelling building or structure used in whole or in part for residential purposes c MANUFACTURERS REQUIREMENTS GAS EQUIPMENT VENTING SYSTEM REQUIRED When the...

Страница 24: ...your safety and for proper heater operation you must provide combustion air to the heater and a proper exhaust vent system Follow the guidelines below 1 Locate the heater where venting gas and plumbi...

Страница 25: ...must be additionally secured at the bottom of the water heater as shown in fig 33 Use the included screws to secure the brackets at the bottom of the water heater to the wall If the wall is sheathed...

Страница 26: ...l gas fittings Bubbles are asignofa leak A combustible gas detector may also be used to detect for leaks GAS LINE SIZING The gas supply piping for a single heater should be sized for a maximum drawof1...

Страница 27: ...pacity in cubic feet of Natural Gas per hour for gas pressures of 14 W C 0 5 psig or 25 mbar or less and a pressure drop of 0 5 W C 1 25mbar based on 0 60 specific gravity gas EHD Equivalent Hydraulic...

Страница 28: ...tubing MaximumCapacityofSemi Rigid flexible noncorrugated TubinginThousandsofBTU hr ofUndilutedLiquefiedPetroleumGases at11inchesWater Column Inlet Pressure Based on a Pressure Drop of 0 5 Inch Water...

Страница 29: ...y void the manufacturer s warranty For water analysis data call your local water department or if on a well have well water analyzed periodically If water quality exceeds one or more of the values spe...

Страница 30: ...remove the combustion cover see fig 5 page 8 Remove the clip and disconnect the drain tube see fig 39 Fig 39 Disconnect drain tube Fill the condensate trap by pouring approx 14 oz 400ml of water into...

Страница 31: ...ter return loop only Timedorthermostaticallycontrolledoperationofthepumpiscommonly done Contact manufacturer if further information is needed 4 14 Space heating applications Bradford White tankless wa...

Страница 32: ...relief valve 4 Gas supply 5 Shut off gas valve 6 Thermal expansion tank as required 7 Atmospheric vacuum breaker 8 Cold inlet 9 Check valve 10 Pump 11 Thermostatic mixing valve 12 Thermometer optional...

Страница 33: ...insufficientdegreerisetothehotwaterbeingused reduced hotwatervolume possibleerrorcodefaultsandmustbecorrected See Gas Connections chapter 4 9 page 26 P1 fan speed Factory default NG 51 LP 52 Lowering...

Страница 34: ...rol unit Fig 49 Remove the six screws from the back cover of the control unit see fig 50 pos 2 Check the fuses in the printed circuit board see fig 50 pos 3 Fig 50 Fuses position After checking the fu...

Страница 35: ...gas leaking leave the building immediately Prevent others from entering the building and notify the police and fire department from outside the building From outside the building call the gas utility...

Страница 36: ...gulate temperature will increase the water flow with consequent waste of water Thewaterheaterwillnotigniteifinletwatertemperatureexceedstheset point temperature less 9 F 5 C In this condition the sola...

Страница 37: ...combustion Refer to Section 4 4 page 23 chapter 4 3 page 10 of this manual to verify exhaust system and combustion air supply meets manufacturer s specifications Pressure Relief Manually open the pres...

Страница 38: ...ff the water supply to the water heater using installer supplied shutoff valve Open hot water taps to drain and relieve pressure from the plumbing system Drainwaterfromtheunit sheatexchangerbydisconne...

Страница 39: ...they can alter readings Fig 71 Measuring port Press the ON OFF button to turn ON the heater Immediately following press and hold simultaneously buttons or and for 3 seconds until display reads P2 Fig...

Страница 40: ...nges Final Readings P1 CO2 Reading CO2 P2 CO2 Reading CO2 D Returning to Service 1 Return slotted screw cover to original position 2 Reinstall Torx cover 3 Remove CO2 analyzer probe and reinstall flat...

Страница 41: ...or details P1 Maximum Power NG 51 LP 52 21 NG 53 LP 53 see chapter 4 15 page 33 note reducing P1 values below maximum will reduce maximum power of the appliance P2 Minimum Power NG 10 LP 13 NG 8 LP 11...

Страница 42: ...access fuses the control board must be removed See chapter 5 2 page 34 3 Make sure cold water inlet connection is plumbed to the right side of heater when facing unit See Fig 35 page 29 4 A minimum of...

Страница 43: ...ust be corrected Consult a professional plumber for help in correcting a crossover Failing single lever faucet mixing valves are common causes of plumbing crossovers 8 5 Low water flow pressure 1 Too...

Страница 44: ...er Temperature above 230 F 110 C inside the cabinet 1 Check continuity of the flue gas limiter see fig 79 11 page 51 Go to steps two and three to determine flue gas limiter fault and repair it 2 Check...

Страница 45: ...Check wire connection at inlet temperature sensor see fig 79 page 51 2 Sensor may trip if water temperature drops below 36 F 2 C Protect heater from freezing conditions as any damage due to freezing c...

Страница 46: ...unstable yellow with proper gas pressure confirm CO2 readings per chapter 7 5 page 39 EC Ionization failure during operation 1 Check gas type fig 2 page 7 2 Check three wire connections to ignition g...

Страница 47: ...Contact manufacturer for further instruction FA Gas leakage error gas valve circuit not closing properly 1 Disconnect power supply cord and check wire connections on gas valve and the two connectors o...

Страница 48: ...5 Cascading output connection 6 Cascading input connection 7 Ionization sensor 8 Water flow sensor 9 Flue gas limiter 10 Heat exchanger overheat sensor ECO 11 Gas valve 12 Temperature Heat Exchanger...

Страница 49: ...Sensor resistance charts RTG 199 HE 6 720 811 617 2016 01 49 11 Sensor resistance charts Fig 76 Outlet Inlet and HE immersion sensor characteristics Fig 77...

Страница 50: ...Functional scheme RTG 199 HE 6 720 811 617 2016 01 50 12 Functional scheme Fig 78 Functional scheme...

Страница 51: ...sensor 5 Primary fan Mixer 6 Hot water temperature sensor 7 LCD display 8 On Off button 9 Reset button 10 Program key 11 Flue gas limiter 12 Heat exchanger overheat sensor ECO 13 Ignition electrodes...

Страница 52: ...the product life Contact your city authorities for information about the disposal of recyclable products Saving water resources Make sure you close all the taps after any use Avoid leaving the taps d...

Страница 53: ...hipping or delivery charges ii any removal installation or re installation charges iii any material and or permits required for installation re installation or repair iv charges to return the defectiv...

Страница 54: ...ssociated with repair and or replacement 3 Replace and or repair any heater without complete model serial number 4 Replace any heater without prior receipt of actual rating plate from appliance and co...

Страница 55: ...located on rating plate on right side panel ___ ___ ___ ___ ___ ___ ___ ___ Gas Pressure Reading 1 1 See Chapter 4 15 page 33 and gas pressure table to be filled out by installer Static Operating Wate...

Страница 56: ......

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