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Installation instructions

21

Greentherm T9800 SEO 160/199 | SECO 199 – 6 720 817 281 (2018/12)

Appliance condensate drain installation

The appliance comes equipped with an internal condensate
drain and siphon. This drains condensation formed in the
secondary heat exchanger. Piping must be installed under the
condensate drain outlet on the water heater and piped for
disposal in accordance with local codes.

To install the condensate drain, connect a ¾" NPT adapter on
the water heater.

Fig. 16

Appliance drain installation

[1]

Condensate drain connection

[2]

Breather

Installing an additional breather downstream in not necessary
since this function is already included in the heater.

NOTICE:

A blocked breather will prevent siphon from draining.
▶ Ensure that the breather included in the siphon is not

obstructed to allow correct function.

Verify condensate disposal/neutralization is in accordance with
federal, State, and local regulation.

This is a high efficiency appliance, condensate flow can be as
much as 2.1 gal/hr at full power.

4.11 Domestic hot water recirculation with

external pump

The following drawings are provided to illustrate possible
recirculation designs. These schematics are for illustration only

and must not be used for actual Installation without appropriate
engineering and technical advice from a properly licensed
professional in the locality where the installation is made.

This appliance has been designed to activate recirculation by
controlling an external pump. For this function, the external
pump must be powered by an external electrical source and can
be switched on and off using the Bosch cable accessory
(7736504585).

Fig. 17

Recirculation application with a dedicated return line

[1]

Cold water supply

[2]

Check valve field supplied

[3]

Circulator pump field supplied

[4]

Expansion tank field supplied

[5]

Circulator cable accessory

[6]

PRV

[7]

Shutoff valves field supplied

[8]

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Содержание Greentherm T9800 SEO160

Страница 1: ...tment alteration serviceormaintenancecancause injury or property damage Refer to this manual For assistance or additional information consult a qualified installer service agency or the gas supplier NOTICE Upon completion of the installation these instructions should be handed to the user of the appliance for future reference 160 000 199 000 Btu Natural Gas ...

Страница 2: ... Instructions 27 6 1 For your safety read before operating your water heater 27 6 2 Power 27 6 3 Error code reset 28 6 4 Temperature selection 28 6 4 1 Programming the default setpoint temperature 29 6 4 2 Solar Mode 29 6 5 Information Adjustments menu 29 6 5 1 P4 Information 29 6 5 2 P9 Purge 30 6 5 3 SA Settings 31 6 5 4 LM Temperature Limit 32 6 5 5 PE Appliance Type 32 6 5 6 PF Bypass Activati...

Страница 3: ...Theinfosymbolindicatesimportantinformationwherethereis no risk to people or property Additional symbols Table 1 1 2 Safety instructions H DANGER Before installation Readallinstructionsbeforeinstalling Perform the steps in the indicated sequence Have the water heater inspected by a trained service technician at least once every year Failure to comply with these instructions can result in severe pos...

Страница 4: ... and fire department from outside the building Fromoutsidethebuilding callthegas utility company and a trained and certified installer H DANGER If you smell flue gas inside the house Switch off the appliance Open windows and doors Inform the certified installer who installed the appliance to change appliance installation location H DANGER Risk of poisoning Insufficient ventilation may cause toxic ...

Страница 5: ... disconnected from the power supply H DANGER Risk of scalding at the hot water fixture Whenthewaterheaterisinoperation temperatures in excess of 120 F 49 C can occur To limit the temperature at the tap install a thermostatic DHW mixing valve Waterheatedforwashingthelaundry dishes and for other cleaning purposes can cause scalding and permanent injuries Children elderly and handicapped persons are ...

Страница 6: ...wing points Use metal fittings for potable water heating systems with plastic piping Useonlyoriginalaccessoriesfromthe manufacturer When installation of the water heater is complete inspect the ground conductor including metal fittings H CAUTION Maintenance Inspectandmaintainthewaterheater on a yearly basis Service as needed Use only genuine spare parts H WARNING Flooding Afteraflood donotusetheap...

Страница 7: ...NING Personal Injury from toxic chemicals A water heater which will be used to supply potable water shall not be connected to any heating system or component s previously used with a nonpotable water heating appliance 2 Safety information Fig 1 The chart below shows the relationship between water temperature and time until there is a risk of scalding It can be used as the basis for determining the...

Страница 8: ... button Selectable temperature default Failure codes for easy diagnostics and repair Real time diagnostics for troubleshooting informational purposes Built in freeze protection Integrated siphon to limit condensate freezing in external condensate pipes Note The freeze prevention kit is designed to provide protection for the water heater down to approximately 4 F 20 C for short term conditions only...

Страница 9: ... 6 Temperature Control3 Residential models Selection range F C 100 1204 38 49 100 1204 38 49 Default temperature F C 120 49 120 49 Temperature stability5 F C 2 1 2 1 Gas Requirement Gas connection inches Peak load inlet gas pressure6 Natural Gas water column 3 5 10 5 3 5 10 5 Water Top hot water connection NPT inches Top cold water connection NPT inches Minimum water flow7 GPM l min 0 45 1 7 0 45 ...

Страница 10: ... higher temperatures and then mixing down using cold water after the unit 2 Input rating is based on sea level operation and need not be changed for operation up to 2000 ft 610 m elevation For operation at elevations above 2000 ft 610 m input rating is automatically reduced at the rate of 4 percent for each 1000 ft 305 m above sea level 3 With constant flow 4 Can be reprogrammed to achieve up to 1...

Страница 11: ...designed for Manufactured mobile homes boats or any mobile installation Modular homes are acceptable for installation Use above 8000 ft A S L altitude Applications where inlet water temperature is higher than140 F 60 C forResidentialappliances Inthese applications a 3 way valve or thermostatic mixing valve must be installed before the appliance s water inlet connection Usewithcommercialdishwasherp...

Страница 12: ...vidual manual gas shutoff valve not supplied with heater during any pressure testing at pressures in excess of Psig 3 5 kPa 5 Keep water heater area clear and free from combustibles and flammable liquids Do not locate the heater over any material which might burn 6 Correct gas pressure is critical for the proper operation of this heater Gas piping must be sized to provide the required pressure at ...

Страница 13: ...Appliance details 13 Greentherm T9800 SEO 160 199 SECO 199 6 720 817 281 2018 12 3 5 Dimensions Fig 4 Dimensions ...

Страница 14: ...t freezing 4 In dusty areas the appliance should be protected from particles that may enter with combustion air to avoid premature malfunction or failure of the heater NOTICE Risk of appliance freezing The water in this water heater is cold and always remains cold except for the times the burner is on In the event of power outage in conjunction with freezing temperatures the heater should be drain...

Страница 15: ...eater on an outside wall It is recommended that horizontal or vertical support boards or plywood sheathing minimum first be attached to the wall surface The heater must be kept level on the wall surface Fig 6 Installation on wood siding WARNING Do not mount heater directly to vinyl siding With vinyl siding a 3 x 4 area of the siding must first be removed and then replaced with wood or other non pl...

Страница 16: ... or greater than 10 5 WC 4 6 Mounting installation for modular homes When installing this appliance on the outside of a modular home the unit must be additionally secured at the bottom of the water heater as shown in fig 9 Use the included screws to secure the brackets at the bottom of the water heater to the wall If the wall is sheathed with plaster or drywall it is recommended that a support boa...

Страница 17: ...mendations of the serving gas supplier see fig 11 Tighten gas pipe with the support of a wrench see fig 10 Fig 10 Tighten gas pipe to the heater Fig 11 Gas connection 1 Shut off valve 2 Gas supply line 3 Cap 4 Minimum 3 sediment trap drip leg Once connections are made check for gas leaks at all joints Apply some gas leak detection solution to all gas fittings Bubbles are a sign of a leak A combust...

Страница 18: ...0 psig 55 WC or 138 mbar and a pressure drop of 3 0 W C 7 5 mbar based on 0 60 specific gravity gas Table 7 Maximum pipe capacity in cubic feet of Natural Gas per hour for gas pressures of 2 0 psig 55 WC or 138 mbar and a pressure drop of 0 5 W C 1 25 mbar based on 0 60 specific gravity gas EHD EquivalentHydraulicDiameter Thegreaterthevalueof EHD the greater the gas capacity of the tubing Nominal ...

Страница 19: ...to fig 12 2 Combined values of total hardness and pH must be under the indicated grey area e g the pair 180 8 3 total hardness pH is not acceptable 4 9 Water connections NOTICE This heater is not approved for preheated water applications exceeding 140 F 60 C for Residential appliances inthesecasesusea3 wayvalveormixingvalve must be installed before the appliance to prevent water exceeding 140 F 60...

Страница 20: ... the piping Blow out or flush the lines before connecting to the water heater Full port shutoff valves should be installed on both the cold water supply and hot water outlet lines to facilitate servicing the heater see fig 15 For installation on a private well system with the use of a pressure tank the lowest pressure range setting recommended is 30 45psi 2 06 3 1bar to ensure optimal performance ...

Страница 21: ...ndensatedisposal neutralizationisinaccordancewith federal State and local regulation This is a high efficiency appliance condensate flow can be as much as 2 1 gal hr at full power 4 11 Domestic hot water recirculation with external pump The following drawings are provided to illustrate possible recirculationdesigns Theseschematicsareforillustrationonly andmustnotbeusedforactualInstallationwithouta...

Страница 22: ... aquastat to the appliance Internal NTC Uses the appliance s NTC sensor to measure the incoming water temperature 4 12 Space heating applications WARNING If the set point temperature is above 120 F 49 C precautions should be taken to protect users of potable water from scalding NOTICE The use of a flow switch is recommended to ensure DHW priority and to prevent cold blow situations when the Bosch ...

Страница 23: ...Thermal expansion tank as required 7 Air purge field supplied 8 Cold water supply 9 Check valve field supplied 10 Thermostatic mixing valve field supplied 11 Thermometer optional field supplied 12 DHW outlet 13 Thermostat field supplied 14 Air handler 15 Shutoff valve field supplied 16 Circulation pump only required if air handler doesn t includes internal pump field supplied 17 Control relay if n...

Страница 24: ...Installation instructions Greentherm T9800 SEO 160 199 SECO 199 6 720 817 281 2018 12 24 Fig 20 Pressure drop curve ...

Страница 25: ...t 6 gallonsperminute 1tuband2sinksshouldbesufficient If heater goes back to P2 open more hot water fixtures to allow sufficient flow and access to P1 Record the lowest operating gas pressure reading in table 10 Turn OFF the appliance Shut off gas supply Disconnect the manometer tube from the test point Tighten the screw inside test point fitting Gas pressures lower than 3 5 W C for Natural Gas may...

Страница 26: ...heater is wired as shown in the wiring diagram chapter 10 Fig 46 Fig 22 Connecting power supply cord 1 Waterproof outlet 2 Power cord length 5 9ft 1 8m Note The power supply that the appliance is plugged into should be protected from possible water damage Observe proper clearance to avoid damages 5 2 Position of the fuses in control unit To check the fuse proceed as follows Disconnect the applianc...

Страница 27: ...main burner When turning the heater on follow these instructions exactly WHAT TO DO IF YOU SMELL GAS Turn off the gas shut off valve Open windows and door if smell detected inside the house Do not try to ignite the appliance Do not touch any electrical switch telephone and do not use outlets Extinguish all open flames Do not smoke Do not use lighters Warn all occupants of the building Do not ring ...

Страница 28: ...r installer 6 4 Temperature selection By default the heating temperature of the water is 120 F 49 C To select a hot water temperature Press the buttons and until the desired temperature is displayed Fig 28 To increase setpoint temperature limit of the appliance Access the menu LM temperature Limit section 6 5 4 A lower temperature set point will reduce the risk of scalding reduce energy consumptio...

Страница 29: ... water temperature exceeds the set point temperature minus 1 F 0 5 C Table 11 6 5 Information Adjustments menu Press simultaneously buttons and for 3 seconds Display shows P4 Information Press buttons or to scroll through the available menus Available menus Table 12 6 5 1 P4 Information Fig 31 P4 Information This menu provides access to several parameters Access to information adjustments manual D...

Страница 30: ...parameter The information is showed on the display Press the button to return to parameters list Press buttons or to select E Press the button to exit Numbers of cycles To see how many cycles the appliance has done please enter the menu 11d Operation Cycles After checking the sub modes 0C 1C 2C 3C 4C introduce the values in a table as the example below Table 13 Total of cycles In this example the ...

Страница 31: ...r readily available at faucets tI Tank Loading Internal NTC Tank loading using the water heater s inlet water temperature sensor to control the pump tE Tank Loading External NTC Tank loading using the external temperature sensor to control the pump tA Tank Loading Aquastat Tank loading using the external temperature sensor to control the pump Press the button to exit recirculation menu A8 Startup ...

Страница 32: ... of recirculation temperature comfort Press the button to select value and to exit Recirculation Settings 6 5 4 LM Temperature Limit 140 F 60 C is the maximum temperature to be defined for residential models How to select Temperature Limit Press the button Display shows temperature limit value Pressthebuttons or toselectdesiredtemperature limit or OF OFF to unlock the Temperature Limit Press the b...

Страница 33: ...It s possible to confirm this value by entering P4 Information menu Access menu PA Press button Press button or to select bP bypass valve Press button The appliance will start the auto calibration of the bypass valve Display will show water flow rate value X 10 multiplied by 10 during the process The display shows the flow rate You should adjust the flow rate at the beginning of the calibration pr...

Страница 34: ...tion Inlet Water Filter Verify the inlet water filter screen is clean and undamaged The inlet water filter is located on the bottom of the appliance to the right of the cold water inlet fitting See Fig 14 page 20 Close the installer supplied water shutoff valve purge the water using discharge drains and remove wireform spring clip from filter Remove the filter clean and or replace if damaged Desca...

Страница 35: ...e outlet water connection of the heater 7 Empty condensate trap 8 Reconnect water fittings refill the condensate trap and return heater to service when danger of freezing has passed 7 3 Mineral scale build up Periodicdescalingmaybenecessaryinareaswithhighmineral contentinthewater seetable 8 WaterQuality Scalebuildup intheheatexchangermayresultinlowerflowrates errorcodes of AA E3 E5 and boiling sou...

Страница 36: ...et is opened It is recommended to use P4 Information page 29 chapter 6 5 1 as a tool for problem solving 1 If the display is blank verify power at the outlet 120VAC 60Hzproperlygroundedcircuitrequired Verifytheheater power supply Check all wire connections including plugged connectors 2 With the water heater s power supply OFF and the power supply cord unplugged remove the unit s front cover See f...

Страница 37: ... result in a water pressure drop and reduced flow at taps 2 Iftheselectedtemperatureontheunitissettoohighforthe demanded flow rate the water heater will close its motorized water valve reducing the hot water flow rate in an attempt to reach the selected output temperature Loweringtheselectedtemperaturewillallowthemotorized water valve to open up for increased water flow rate 3 Cleantheinletwaterfi...

Страница 38: ...f there are no obstructions and the problem persists 4 Perform the gas and air adjustment as described in section 8 11 5 If it is not possible to solve the problem with these measures and error persists the burner surface ceramat might be obstructed e g clogging due to dust particles in the air Contact Bosch support line for further assistance intothediagnosisifyourinstallationfitsthisdescription ...

Страница 39: ...e 17 Turn Off the appliance Disconnect the pressure gauges from the pressure heads points A and B Tightentheshutterscrewsofthepressureheadspoints A and B Place front cover in the appliance Turn ON the appliance to return to normal operation 8 11 Adjusting Gas Air flow DANGER Risk of CO poisoning Gasair flowadjustmentisperformedwiththefrontcoverofthe appliance removed Avoid exposure to exhaust vent...

Страница 40: ...ow is sufficient and stable e g water from a well is a potential source of water instability In case of positive results for all these actions Exit UC menu and repeat the process If failure persists Perform manual adjustment according to chapter 8 11 2 or contact Bosch support line for further assistance 8 11 2 Manual adjust Gas Air flow Gas Air flow adjust is also possible to perform manually onl...

Страница 41: ... the button to enter b1 Display shows the parameter value blinking during calibration Wait until display shows b1 value blinking as a sign of calibration complete Press button to finish the b1 automatic air adjust Press the button or until the display shows E Press the button Display shows P1 Second step Adjust the Low power P2 KeephotwatertapsopenedtoadjustLowpower P2 Theunit will ramp down to lo...

Страница 42: ...s the symbol The factory default values for P2 are restored 8 12 CO emissions check In case air gas combustion adjustment has been performed check emissions using reference values in tables 18 and 19 8 12 1 Access to CO2 measuring port WARNING Only a qualified technician can perform these steps This can cause carbon monoxide poisoning Follow the instructions carefully Allow the appliance to stabil...

Страница 43: ...U Nat Gas max input P1 8 4 9 0 250 ppm min input P2 N A 100 ppm Values above are for climate controlled conditions Inputs such as gas pressure heating value of the gas humidityandtemperatureofcombustionairallimpactCO and CO2 values Changes in these inputs can result in different CO and CO2 values on the same appliance CO2 range Max COlevel measured Greentherm T9800 SE O 160 000 BTU Nat Gas max inp...

Страница 44: ...k pocket Verify if correct recirculation settings are in use section 4 11 1 Replace the sensor and or wire connections if the problem persists 1 A3 Flue gases temperature sensor 15 disconnected or damaged Check sensor wire connections 1 2 Replace the sensor and or wire connections if the problem persists 1 A4 Air temperature sensor 18 disconnected or damaged Check sensor wire connections 1 2 Repla...

Страница 45: ...rsists Check air openings and exhaust opening for obstructions and reset the error Check if the air filter is dirty or clogged replace it if needed Perform gas and air tuning section 8 11 1 Contact Bosch support line for additional information and assistance in case of installation in dusty areas C3 Flow sensor 14 does not detect water recirculation Check pump and connections 1 Check recirculation...

Страница 46: ...opening for obstructions and reset the error Check if the air filter is dirty or clogged replace it if needed Perform gas and air tuning section 8 11 1 If the problem persists Contact Bosch support line for additional information and assistance in case of installation in dusty areas E0 Electronic control unit internal error Reset error press and hold on off button for 3 seconds If the problem pers...

Страница 47: ... Electronic control unit internal error Replace electronic control unit 1 E9 Thermal fuse 13 broken Replace thermal fuse 1 EA Ignition failure Check gas inlet pressure section 4 13 1 Perform gas and air tuning section 8 11 1 EB Electronic control unit internal error Reset error press and hold on off button for 3 seconds If the problem persists Replace electronic control unit 1 EC Flame lost during...

Страница 48: ...anifold 1 After gas valve and or gas manifold replacement perform gas and air tuning section 8 11 1 FC Control buttons pressed for more than 30s Release the button Display shows but without existence of solar thermal system Power demand lower than appliance minimum output power Increase hot water flow increase setpoint temperature Display shows and water temperature low Display shows Display is no...

Страница 49: ...Electrical diagram 49 Greentherm T9800 SEO 160 199 SECO 199 6 720 817 281 2018 12 10 Electrical diagram Fig 46 Electrical diagram ...

Страница 50: ... water valve 9 Electrovalve 3 10 Electrovalve 1 11 Electrovalve 2 12 Gas valve safety solenoid 13 Thermal fuse 14 Water flow sensor 15 Flue dases temperature sensor 16 Condensing unit flue gases temperature sensor 17 Outlet hot water temperature sensor 18 Air temperature sensor 19 Heat exchanger hot water temperature sensor 20 Inlet cold water temperature sensor 21 External water temperature senso...

Страница 51: ...nd condensing unit flue gases temperature sensors characteristics 40 22 4 14 32 50 68 86 104 122 140 158 176 194 40 30 20 10 0 10 20 30 40 50 60 70 80 90 100 110 120 212 230 248 0 1 1 100 RESISTANCE KOHM TEMPERATURE ºF ºC 6720816948 40 1V 10 40 4 32 68 104 140 176 212 284 320 392 428 464 40 20 0 20 40 60 80 100 140 160 200 220 240 248 120 356 180 0 01 0 1 1 10 100 RESISTANCE KOHM TEMPERATURE ºF ºC...

Страница 52: ...up Delay 0 60 A9 Units Set ºC ºF RS circulation Re Settings OF OFF HR House Recirculation TI Tank Loading Internal NTC TE Tank Loading External NTC TA Tank Loading Aquastat AP Appliance Power 160 199 MO Appliance Model IN OUT PF Bypass EN DI P Actuator Calibration A E Exit BP Bypass Valve MF Main Valve P7 Gas Type LP NA PE Appliance Type E Exit E Exit P0 Minimum Power P1 Maximum Power E Exit A1 Ai...

Страница 53: ...0 817 281 2018 12 13 Interior components diagram and parts list 13 1 Interior components Fig 50 Components 1 Air fan 2 Control unit 3 Gas manifold 4 Burner 5 Heat exchanger 6 Condensing unit 7 Water valve 8 By pass 9 Gas valve 10 Condensate trap 11 Ionization sensor 12 Ignition electrodes ...

Страница 54: ...Interior components diagram and parts list Greentherm T9800 SEO 160 199 SECO 199 6 720 817 281 2018 12 54 Fig 51 Appliance overview ...

Страница 55: ...e or with the remote control This way you have the precise water flowneeded mixingcoldwatertoregulatetemperaturewill increase the water flow with consequent waste of water 15 Installer Checklist to be completed by installer upon installation Table 21 Installation manual should be left with the owner after the installation is tested and completed Serial Number1 1 Serial number is located on the rat...

Страница 56: ...100 Fax 603 965 7581 www boschheatingandcooling com U S A Products manufactured by Bosch Thermotechnik GmbH Junkersstrasse 20 24 D 73249 Wernau www bosch thermotechnology com Bosch Thermotechnology Corp reserves the right to make changes without notice due to continuing engineering and technological advances ...

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