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Bosch Greentherm T9800 SEC 199 Installation And Operating Instructions Manual

Indoor residential and commercial tankless water heaters
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INDOOR RESIDENTIAL AND COMMERCIAL TANKLESS WATER HEATERS
Greentherm T9800 SE 160/199 | SEC 199
160 000/199 000 Btu- Natural Gas | 160 000/199 000 Btu - Liquefied Petroleum (LP) Gas
Installation and Operating Instructions
Temperature Modulated with Electronic Ignition Suitable for heating potable water and space heating
(Intended for variable flow applications, indoor use only)
Caution!
Improper installation, adjustment, alteration, service or maintenance can cause
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.
WARNING: If the information in these instructions is not followed
exactly, a fire or explosion may result causing property damage,
personal injury or death.
- Do not store or use gasoline or other flammable vapors and liquids
in the vicinity of this or any other appliance.
- WHAT TO DO IF YOU SMELL GAS
Do not try to light any appliance.
Do not touch any electrical switch; do not
use any phone in your building.
Immediately call your gas supplier from a neighbor's phone.
Follow the gas supplier's instructions.
If you cannot reach your gas supplier, call the fire department.
- Installation and service must be performed by a qualified installer,
service agency or the gas supplier.
6720816815-38.1V

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  Summary of Contents for Bosch Greentherm T9800 SEC 199

  • Page 1 Caution! Improper installation, adjustment, alteration, service or maintenance can cause 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.
  • Page 2: Table Of Contents

    2 | Table of contents Table of contents Key to symbols and safety instructions ..3 Maintenance and service ..... 50 Key to symbols .
  • Page 3: Key To Symbols And Safety Instructions

    Key to symbols and safety instructions | 3 Safety instructions Key to symbols and safety instructions Read all instructions before installing. Perform the steps in the indicated sequence. Have the water heater inspected by a Key to symbols trained service technician at least once every year. Failure to comply with these instructions can result in severe, possibly Warnings fatal, personal injury as well as damage to property and...
  • Page 4 ▶ Immediately correct all faults to prevent system damage. To protect against corrosion and ensure compliance with the ▶ Use only Bosch spare parts! rules for electrical safety, observe the following points: Instruct the customer ▶ Use metal fittings for potable water heating systems with ▶...
  • Page 5 Key to symbols and safety instructions | 5 Flooding DANGER: Electric shock! ▶ After a flood, do not use the appliance if any part has been Shock hazard: line voltage is present. submerged. Damage to appliances that have been submerged can be quite severe and pose numerous safety ▶...
  • Page 6: Safety Information

    6 | Safety information WARNING: Fire danger! WARNING: Personal Injury from toxic ▶ Keep appliance area clear and free from chemicals. combustible materials, gasoline and ▶ A water heater which will be used to other flammable vapors and liquids. supply potable water shall not be connected to any heating system or component(s) previously used with a NOTICE:...
  • Page 7: Appliance Details

    • Wi-Fi module [802.11 b/g/n (2.4 GHz)] www.P65Warnings.ca.gov • Aquastat kit (7736504584) • External Recirculation Cable (7736504585) BOSCH water heater complies with the State of California Lead • Tank loading NTC (7736504583) Law (AB1953). • Wired remote control (7736504946) •...
  • Page 8: Specifications (Technical Data)

    8 | Appliance details Specifications (Technical data) Approved in US/Canada Technical characteristics Units Greentherm T9800 SE / SEC Greentherm T9800 SE 199 000 Btu 160 000 Btu Capacity Maximum flow rate at a 35 °F (19.4 °C) rise GPM (l/min) 11.2 (42.4) 9 (34) Maximum flow rate at a 45 °F (25 °C) rise...
  • Page 9 Appliance details | 9 Technical characteristics Units Greentherm T9800 SE / SEC Greentherm T9800 SE 199 000 Btu 160 000 Btu Width inches (mm) (471.5) (471.5) Height inches (mm) 31½ (800) 31½ (800) Net weight pounds (kg) 77.5 (35.2) 73.2 (33.2) Gross weight pounds (kg) 89.95 (40.8)
  • Page 10: Unpacking The Heater

    Please consult Bosch for Gas - Propane or Natural Gas. Identification labels are found further details to determine if this will on the shipping box, and on the rating plate which is located on function in your application.
  • Page 11: General Rules To Follow For Safe Operation

    Appliance details | 11 General rules to follow for safe operation 1. You must follow these instructions when you install your heater. In the United States: The installation must conform with local codes or, in the absence of local codes, the National Fuel Gas Code ANSI Z223.1/NFPA 54.
  • Page 12: Dimensions And Minimum Installation Clearances

    12 | Appliance details Dimensions and minimum installation clearances Fig. 5 Dimensions 6 720 816 815 (2018/08) Greentherm T9800 SE 160/199 | SEC 199...
  • Page 13: Installation Instructions

    ▶ The water heater must be installed by a qualified installer in accordance with these instructions. If improperly installed, a hazardous condition such as explosion or carbon monoxide poisoning could result. Bosch Thermotechnology Corp. is not responsible for improperly installed appliances. Common installation practice is to first determine the path and method of venting, then design the piping layout.
  • Page 14: Heater Placement And Clearances

    14 | Installation instructions If the wall is sheathed with plaster or drywall, it is WARNING: recommended that two support boards, either 1"x 4" or 1/2" ▶ Flammable materials, gasoline, (minimum) plywood first be attached across a pair of studs, pressurized containers, or any other see fig.
  • Page 15: Venting

    Installation instructions | 15 Venting DANGER: ▶ Do not reduce the exhaust or combustion air vent pipe sizes. ▶ Do not common vent with any other vented appliance or stove. ▶ Do not use Type-B vent as the actual exhaust vent system for the appliance. DANGER: Flue gas poisoning! ▶...
  • Page 16 16 | Installation instructions Flue temperature: ▶ To prevent the risk of flue material overheat the appliance's flue temperature is sensed and is limited. The flue temperature limit is depending on inlet water temperature. ▶ Residential models: Maximum flue temperature is limited to 145 °F. ▶...
  • Page 17 Installation instructions | 17 4.6.2 Approved vent components and terminations Bosch 196050 2" Bird screen 196051 3" Bird screen 196052 4" Bird screen 2", 3", and 4" SCH40 (Solid Core) PVC/CPVC 45° long sweep elbow 2", 3", and 4" SCH40 (Solid Core) PVC/CPVC 45°...
  • Page 18 18 | Installation instructions IPEX 196984 2" PVC Low profile termination kit Exhaust: 0 196985 3" PVC Low profile termination kit Intake: 5 196986 4" PVC Low profile termination kit IPEX 081216 2" PVC Wall Termination Kit Exhaust: 081219 3" PVC Wall Termination Kit Intake: 7.5 Temple ECAP 321...
  • Page 19 Installation instructions | 19 Duravent 810009692 (2" x 4") Black PP Vertical Termination Kit - Concentric Exhaust: M&G 810009720 (3" x 5") Black PP Vertical Termination Kit - Concentric 810009693 (2" x 4") Terra-Cotta PP Vertical Termination Kit - Concentric Intake: 40 810009721 (3"...
  • Page 20 20 | Installation instructions 4.6.3 Vent specifications The vent for this appliance shall not terminate: Establish vent clearances that comply with the vent 1. over public walkways; or manufacturer's specifications and all applicable national/local 2. near soffit vents or crawl space vents or other areas where codes.
  • Page 21 Installation instructions | 21 Required direct vent terminal clearances (twin pipe / concentric penetration) Fig. 10 Canadian installations U.S. installations with direct vent terminals with direct vent A Clearance above grade, veranda, porch, deck or balcony 12 in. (30cm) 12 in. (30cm) B Clearance to window or door that may be opened 36 in.
  • Page 22 22 | Installation instructions 3) A vent shall not terminate directly above a sidewalk or paved driveway that is located between two single family dwellings and serves both dwellings. 4) Permitted only if veranda, porch, deck or balcony is fully open on a minimum of two sides beneath the floor. For clearances not specified in ANSI Z223.1 / NFPA 54 or CSA-B149.1, one of the following shall be indicated: a) a minimum clearance value determined by testing in accordance with Clause 5.20, Draft hoods, or;...
  • Page 23 Installation instructions | 23 Required other than direct vent terminal clearances (single pipe penetration) Fig. 11 Canadian installations U.S. installations with with non direct vent non direct vent terminals A Clearance above grade, veranda, porch, deck or balcony. 12 in. (30cm) 12 in.
  • Page 24 24 | Installation instructions 3) A vent shall not terminate directly above a sidewalk or paved driveway that is located between two single family dwellings and serves both dwellings. 4) Permitted only if veranda, porch, deck or balcony is fully open on a minimum of two sides beneath the floor. For clearances not specified in ANSI Z223.1 / NFPA 54 or CSA-B149.1, one of the following shall be indicated: a) a minimum clearance value determined by testing in accordance with Clause 5.20, Draft hoods, or;...
  • Page 25 In the event of negative air pressure causing back drafting contact Bosch for information. Fig. 13 Vertical venting system [1] Exhaust [2] Intake [A] 12 inches (305 mm) (18 in.
  • Page 26 26 | Installation instructions Fig. 16 Horizontal venting system (sealed combustion) [1] Intake Fig. 15 Horizontal venting installation (air intake piping not [2] Exhaust shown) [1] Termination [2] Water heater [3] Elbow [4] Horizontal run should slope ¼ " per foot upwards to water heater [LA] 12 inches (305 mm) (18 in.
  • Page 27 Installation instructions | 27 With Flex Pipe the maximum length is reduced by 60%, (applies only to the section in flex PP). Example: 10 feet of flex PP is equivalent to 25 feet of rigid PP. Flex Pipe according to the suppliers instructions for use in the vertical part of the installation only.
  • Page 28 28 | Installation instructions ▶ To allow accessibility, the damper must not be installed in Verify condensate disposal/neutralization is an enclosed section of vent pipe. in accordance with federal, State, and local ▶ Do not install the damper in unconditioned spaces (e.g. regulation.
  • Page 29: Factory Regulation

    Installation instructions | 29 metal louvers (as metal will reduce the free air by 30%). Refer NOTICE: to the National Fuel Gas Code for complete information. ▶ When installed in an environment where Factory regulation corrosive chemicals or dirty air (e.g. hair salons, car washes) are present the The appliances are supplied having been set in the factory for sealed combustion (twin pipe or...
  • Page 30: Gas Piping & Connections

    30 | Installation instructions Gas piping & connections Before connecting the gas supply, be sure that the heater is set for the same gas to which it will be connected. In the United States: The installation must conform with local codes or, in the absence of local codes, the National Fuel Gas Code ANSI Z223.1/NFPA 54.
  • Page 31 Installation instructions | 31 4.8.1 Gas Line Sizing Tables for NATURAL GAS For your convenience see below for an excerpt from gas line sizing tables for a single NG appliance. For details see the current NFPA Required input for 160000 / 199000 BTU/hr for the Greentherm T9800 SE / SEC. The gas supply system must be sized for the combined total maximum BTU/hr load requirements of all gas appliances running simultaneously.
  • Page 32 32 | Installation instructions 4.8.2 Gas Line Sizing Tables for LP GAS For your convenience see below for an excerpt from gas line sizing tables for a single LP appliance. Their intended use is for pipe sizing between the 2nd stage (low pressure) regulator and the appliance. For details see the current NFPA 54 or NFPA 58. Required input for 160000 / 199000 BTU/hr for the Greentherm T9800 SE / SEC.
  • Page 33: Water Quality

    Connecting the pressure relief valve (PRV) exceeds the values specified in fig. 26 (grey area), Bosch A pressure relief valve is included in the box and must be recommends consulting a local water treatment professional installed at the time of installation.
  • Page 34: Water Connections

    34 | Installation instructions 4.10 Water connections Water connections are on top ONLY. Bottom connections are drain/service ports with limited flow capacity. NOTICE: ▶ This heater is not approved for preheated water applications exceeding 140 °F (60 °C) for Residential appliances or 180 °F (82 °C) for Commercial appliances, in these cases use a 3-way valve or mixing valve must...
  • Page 35: Domestic Hot Water Recirculation With External Pump

    This appliance has been designed to permit recirculation by controlling an external pump. For this function, the external pump must be electrically connected to the appliance - Bosch cable accessory (7736504585) is available. All the features of recirculation ( 6.5.2, A1 Recirculation) can be used.
  • Page 36: Space Heating Applications

    CAUTION: ▶ The use of a flow switch is recommended to ensure DHW priority and to prevent “cold-blow” situations when the Bosch tankless water heater is used with an air handler. Air handler installation must include a pump. The flow switch should be used to disable the blower on the air-handling system when domestic water is used.
  • Page 37 Installation instructions | 37 Fig. 32 Hydro air system with water heater [1] Hot water outlet [15] Check valve (field supplied) [2] Cold water inlet [16] Shutoff valve (field supplied) [3] Pressure relief valve [17] Circulation pump (only required if air handler doesn’t [4] Gas supply includes internal pump) (field supplied) [5] Shut off gas valve (field supplied)
  • Page 38 38 | Installation instructions Fig. 33 Pressure drop curve 6 720 816 815 (2018/08) Greentherm T9800 SE 160/199 | SEC 199...
  • Page 39: Measuring Gas Pressure

    Electrical connections | 39 4.13 Measuring gas pressure 4.13.1 Gas supply pressure Confirm gas pressure upon installation. Connecting manometer ▶ Shut off gas supply at installer supplied shutoff valve for Fig. 34 Gas pressure test port this water heater. [1] Gas pressure measuring port ▶...
  • Page 40: Position Of The Fuses In Control Unit

    40 | Operating Instructions ▶ Check the fuse on the printed circuit board, for electrical continuity, see fig. 37, [1]. Fig. 35 Connecting power supply cord [1] Power cord length: 5.9 ft (1.8m). Note: The power supply that the appliance is plugged into Fig.
  • Page 41: For Your Safety Read Before Operating Your Water Heater

    Operating Instructions | 41 For your safety read before operating your (Fig. 38, [7]). water heater WARNING: Explosion hazard! ▶ If you do not follow these instructions exactly, a fire or explosion may result causing property damage, personal injury or loss of life. WARNING: Appliance malfunction! Strong magnetic fields can interfere with the electronics, which can lead to appliance...
  • Page 42 42 | Operating Instructions 6.4.1 Programming the default setpoint temperature To increase setpoint temperature limit of the appliance, ▶ Access the menu LM - Temperature Limited ( Section 6.6) and select Unlocked. A lower temperature set point will reduce the risk of scalding, reduce energy consumption and increase the longevity of the heat exchanger.
  • Page 43: Information /Adjustments Menu

    Operating Instructions | 43 Information /Adjustments menu • Operation Hours - number of hours burner has been operational. Access to Information / Adjustments menu OD Operation Data Display shows the set point temperature. Allows you to view various parameters of the current operation ▶...
  • Page 44 44 | Operating Instructions ▶ Touch the symbol when month is correct. ▶ Use the symbols to set the day. ▶ Touch the symbol when the day is correct. ▶ Use the symbols to set the year. ▶ Touch the symbol when the year is correct.
  • Page 45 Operating Instructions | 45 ▶ Touch the symbol to select the day of the week. ▶ Touch the symbol to activate vacation program. ▶ Use the symbols to choose another week day. Deactivating the vacation program. When week days are selected, ▶...
  • Page 46: Service Menu - Au Technical Settings

    46 | Operating Instructions ▶ Touch the symbol – Off ▶ Use the symbols to select measurement units. – On ▶ Touch symbols to select the desired option. Metric ( °C l/min) ▶ Touch the symbol Imperial ( °F gal/min) The current selection is in green color.
  • Page 47 Operating Instructions | 47 ▶ Touch symbols to select AU Technical CA Combustion Adjust Settings menu. For more information, ▶ Touch the symbol ▶ See section 8.11. Display shows Technical Settings menu (password input). PA Water Actuator ▶ Select the password. The password is 1886. For more information, Technical Settings completed.
  • Page 48: Water Valves Calibration

    48 | Operating Instructions AB Region Selection ▶ Access menu PA. ▶ Touch the symbol ▶ Touch symbol OK. Display shows following menu. ▶ Touch symbols to select BP bypass-water – Europe valve. – North America ▶ Touch symbol OK. The appliance will start the auto calibration of the bypass A4 Demonstration valve.
  • Page 49 Operating Instructions | 49 ▶ Remove the four screws that retain the cover plate to the gas manifold, see fig. 47 (plate in grey color). Fig. 47 Gas manifold ▶ Remove metal plate and seal. ▶ The 3 restrictor plates should be pre-assembled onto their tray, but if loose in box, follow installation instructions, as shown in fig.
  • Page 50: Maintenance And Service

    50 | Maintenance and service Maintenance and service WARNING: Gas leakage! ▶ Replace burner seals in case burner is disassembled. Consult spare part list at DANGER: www.boschheatingandcooling.com. ▶ Always shut off the electrical power supply, shut off the manual gas valve Annual maintenance and shut off the water valves whenever servicing.
  • Page 51: Mineral Scale Build-Up

    Maintenance and service | 51 left in a space which is likely to experience freezing ▶ Make sure all connections are water tight. temperatures, all water must be drained from the heater. ▶ Fill the descaling reservoir with descaling solution so both NOTE: Use of agents such as anti-freeze is not permitted and lines inside are submersed.
  • Page 52: Troubleshooting

    52 | Troubleshooting flowing. Any continuous flow of water, small or large, Troubleshooting indicates a crossover is present and must be corrected. Consult a professional plumber for help in correcting a crossover. Failing single lever faucet mixing valves are CAUTION: common causes of plumbing crossovers.
  • Page 53: Hot Water Temperature Fluctuates At Tap

    Troubleshooting | 53 Noisy burner/heater during operation 2. If the selected temperature on the unit is set too high for the demanded flow rate, the water heater will close its Burner noises can be heard if combustion is not properly set. motorized water valve, reducing the hot water flow rate in This could be caused by improper gas supply conditions (gas an attempt to reach the selected output temperature.
  • Page 54: Manifold Gas Pressure

    54 | Troubleshooting 2. Verify is gas pressure is within specified range (see ▶ Connect the pressure gauge "-" to the pressure head point section 3.2). [A] using the accessory [C]. If gas type is properly selected, gas pressure is within ▶...
  • Page 55 ▶ Exit UC menu and repeat the process. ▶ Touch the symbol to enter UC menu. ▶ Perform manual adjustment according to chapter 8.11.2 or contact Bosch Wait a few minutes until Open Taps message support line for further assistance. appears in the display.
  • Page 56 56 | Troubleshooting How to enter a new tuning parameter (i.e. L1, L2, A1, A2). ▶ Select the desired parameter. ▶ Touch the symbol The symbols appears in the display. ▶ Change to the desired value. ▶ Touch the symbol when finished.
  • Page 57 Troubleshooting | 57 Adjust the minimum power ▶ Touch the symbol ▶ Touch symbols until display shows B1 Internal Adjust. L2 Gas Adjust 6720816815-39.1V Fig. 59 L2 Gas Adjust - ION value Fig. 57 B1 Internal Adjust - P1 Active ▶...
  • Page 58 58 | Troubleshooting 8.11.3 Restore factory values To restore factory values, ▶ Proceed with the following steps. Reset Parameters P1 ▶ Access to menu P1 Max. Power. ▶ Touch symbols to select Reset Parameters. ▶ Touch the symbol The factory default values for P1 are restored. Reset Parameters P2 ▶...
  • Page 59: Co Emissions Check

    Troubleshooting | 59 8.12 CO emissions check 8.12.2 CO and CO values In case air/gas combustion adjustment has been performed range (%) Max. CO level check emissions using reference values in tables 25 and 26. (measured) Greentherm T9800 SE / SEC 8.12.1 Access to measuring port 199 000 BTU Allow the appliance to stabilize before...
  • Page 60: Problem Solving

    60 | Problem solving Problem solving Error code diagnostics To remove error codes from the display, Installation, maintenance and repair must only be carried out ▶ Touch the On/Off button more than 3 by qualified contractors. The following table describes the sec.
  • Page 61 Problem solving | 61 Display Description Solution Condensing unit flue gases temperature [16] ▶ Descale appliance ( section 7.3). above 392 °F and/or flue gases temperature [15] above 145 °F at the exhaust sensor [15]. Appliance regulates power to protect against overheating.
  • Page 62 62 | Problem solving Display Description Solution Flue blockage detected during operation due to ▶ Reset error (touch and hold on/off button for 3 excessive pressure on the siphon. seconds). If the problem persists: ▶ Check exhaust pipes and terminals for obstructions and reset the error.
  • Page 63 Problem solving | 63 Display Description Solution Electronic control unit internal error. ▶ Reset error (touch and hold on/off button for 3 seconds). If the problem persists: ▶ Replace electronic control unit. Error during ionization test. Electronic control unit ▶ Replace electronic control unit. internal error.
  • Page 64 64 | Problem solving Display Description Solution Touch screen key pressed for more than 20 ▶ Release the touch screen key. seconds. ▶ Clean the touch screen display. Display reads Power demand lower than appliance minimum ▶ Increase hot water flow. SOLAR but without output power.
  • Page 65: Electrical Diagram

    Electrical diagram | 65 Electrical diagram Fig. 61 Electrical diagram Greentherm T9800 SE 160/199 | SEC 199 6 720 816 815 (2018/08)
  • Page 66 66 | Electrical diagram [1] Ionization sensor [2] Fan [3] Ignition electrode [4] Power supply [5] Connection for anti freeze kit [6] Connection for remote control [7] Gas valve - modulation solenoid [8] Bypass water valve [9] Electrovalve 3 [10] Electrovalve 1 [11] Electrovalve 2 [12] Gas valve - safety solenoid [13] Thermal fuse...
  • Page 67: Sensor Resistance Charts

    Sensor resistance charts | 67 Sensor resistance charts RESISTANCE (KOHM) 6720816948-40.1V Fig. 62 Inlet, outlet and heat exchanger water temperature sensors characteristics 0.01 RESISTANCE (KOHM) 6720816948-41.1V Fig. 63 Flue gases and condensing unit flue gases temperature sensors characteristics Greentherm T9800 SE 160/199 | SEC 199 6 720 816 815 (2018/08)
  • Page 68: Interior Components Diagram

    68 | Interior components diagram Interior components diagram 12.1 Interior components Fig. 64 Interior components [1] Inlet water filter [11] Power cord [2] Air fan [12] Gas connection [3] Control unit [13] Condensate drain [4] Gas manifold [14] HE drain [5] Burner [15] Gas valve [6] Heat exchanger...
  • Page 69: Protecting The Environment

    Protecting the environment | 69 Protecting the environment Packing The packing box may be fully recycled as confirmed by the recycling symbol Components Many parts in the heater can be fully recycled at the end of the product life. Contact your city authorities for information about the disposal of recyclable products.
  • Page 70: Installer Checklist To Be Completed By Installer

    70 | Installer Checklist to be completed by installer upon installation Installer Checklist to be completed by installer upon installation Serial Number ___ ___ ___ ___ ___ ___ ___ ___ Gas Pressure Reading Static Dynamic Water Pressure Building Water Pressure Pressure Range if on Well system Installing Company...
  • Page 71 | 71 Notes Greentherm T9800 SE 160/199 | SEC 199 6 720 816 815 (2018/08)

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