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Bosch TRONIC 4000 C Installation Manual

Bosch TRONIC 4000 C Installation Manual

Electric tankless water heaters

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Installation Manual
Electric Tankless Water Heaters
TRONIC 4000 C
TR4000C-3 | TR4000C-6 | TR4000C-8 | TR4000C-10 | TR4000C-13
WARNING:
This manual must only be used by a qualifi ed
installer / service technician. Read all instructions
in this manual before installing. Perform steps in
the given order. Failure to do so could result in
substantial property damage, severe personal
injury, or death.
WARNING:
Improper installation, adjustment, alteration,
service or maintenance can cause injury, death, or
property damage.
NOTICE:
The manufacturer reserves the right to make
product changes or updates without notice and will
not be held liable for typographical errors in
literature.
®

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Table of Contents
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Summary of Contents for Bosch TRONIC 4000 C

  • Page 1 Installation Manual Electric Tankless Water Heaters TRONIC 4000 C TR4000C-3 | TR4000C-6 | TR4000C-8 | TR4000C-10 | TR4000C-13 WARNING: This manual must only be used by a qualifi ed installer / service technician. Read all instructions in this manual before installing. Perform steps in the given order.
  • Page 2 Installation Manual Bosch Tronic TR4000C Electric Tankless Water Heaters - BTC 722203301 A (08.2022)
  • Page 3: Table Of Contents

    11.2 Draining the Heater 11.3 Checking the Inlet Filter 11.4 Removing a Heating Element 11.5 Descaling the Heating Element 12 Troubleshooting 12.1 Thermal Cutout 12.2 Testing the Heating Elements Bosch Tronic TR4000C Electric Tankless Water Heaters- BTC 722203301 A (08.2022)
  • Page 4: Key To Symbols And Safety Instructions

    13. This water heater should be serviced only by qualifi ed service personnel. Contact the water heater installer or a qualifi ed service agency for examination, repair, or adjustment. Bosch Tronic TR4000C Electric Tankless Water Heaters - BTC 722203301 A (08.2022)
  • Page 5 IS NOT covered under product warranty. WARNING: IMPROPER OR DANGEROUS OPERATION  The manufacturer cannot be responsible for damages caused by improper installation or by failure to follow the instructions in this manual. Bosch Tronic TR4000C Electric Tankless Water Heaters- BTC 722203301 A (08.2022)
  • Page 6 Failure to install a temperature limiting or mixing valve and follow these instructions could result in property damage, severe personal injury, or death due to scalds. Bosch Tronic TR4000C Electric Tankless Water Heaters - BTC 722203301 A (08.2022)
  • Page 7: Prepare The Water Heater

        I f you do not provide the minimum recommended service clearances it might not be possible to service the water heater without removing it from the space to service. Bosch Tronic TR4000C Electric Tankless Water Heaters- BTC 722203301 A (08.2022)
  • Page 8: Installation Area Operating Conditions

    Such failures ARE NOT covered by warranty. Bosch Tronic TR4000C Electric Tankless Water Heaters - BTC 722203301 A (08.2022)
  • Page 9: Water Quality Requirements

    250 mg/liter, may cause a scale build up that can damage the product. In case of hard water it is recommended to use an anti-scale treatment. Damage caused by scale is not covered by the warranty. Bosch Tronic TR4000C Electric Tankless Water Heaters- BTC 722203301 A (08.2022)
  • Page 10: Water Heater Components

    Power Selector Thermal Cutout (Manual Reset) Hot Water Outlet Canister/Heating Element 10 Flow Sensor Cold Water Inlet 11 Relay Inlet Filter 12 Check Valve Terminal Block 1 0 | Bosch Tronic TR4000C Electric Tankless Water Heaters - BTC 722203301 A (08.2022)
  • Page 11: Dimensions

    Installation Manual 5 Dimensions 9 9/16" (243 mm) 13 1/16" 4 1/4" (332 mm) (107 mm) Figure 3 Dimensions | 11 Bosch Tronic TR4000C Electric Tankless Water Heaters- BTC 722203301 A (08.2022)
  • Page 12: Technical Specifi Cations

    Temperature Rise Δt TR4000C-3 TR4000C-6 TR4000C-8 TR4000C-10 TR4000C-13 35°F 0.59 1.26 1.65 2.04 2.53 45°F 0.98 1.28 1.59 1.97 77°F 0.57 0.75 0.93 1.15 Table 5 1 2 | Bosch Tronic TR4000C Electric Tankless Water Heaters - BTC 722203301 A (08.2022)
  • Page 13: Installation

    2. Pull bottom of cover forward and swing out (pos.1). Lift away from tabs on  Do not install the unit above electrical boxes or junctions. the top of the back cover (pos.2). Do not fully remove cover. Figure 5 | 13 Bosch Tronic TR4000C Electric Tankless Water Heaters- BTC 722203301 A (08.2022)
  • Page 14 8. Pull gently on the water heater to ensure that it is properly mounted. 1 4 | Bosch Tronic TR4000C Electric Tankless Water Heaters - BTC 722203301 A (08.2022)
  • Page 15: Plumbing

     Do not thread a cap or plug into a relief valve or relief valve line under any circumstances! Explosion and property damage, serious injury, or death may result. | 15 Bosch Tronic TR4000C Electric Tankless Water Heaters- BTC 722203301 A (08.2022)
  • Page 16: Check Valve

    MIXING VALVE (IF REQUIRED BY LOCAL CODE) UNION PRESSURE WATER LEAK CHECK RELIEF (IF REQUIRED BY DETECTION VALVE LOCAL CODE) SENSOR CATCH DRAIN Figure 10 1 6 | Bosch Tronic TR4000C Electric Tankless Water Heaters - BTC 722203301 A (08.2022)
  • Page 17: Filling The Heater

    “dry-firing” ARE NOT covered by warranty.     T his water heater must be hard wired to the correct breaker size with the appropriate wire gauge. | 17 Bosch Tronic TR4000C Electric Tankless Water Heaters- BTC 722203301 A (08.2022)
  • Page 18: Wiring Diagrams

    5. Switch 0- Off H.E 3 1- Low Relay 57 º 2- Medium 3- High 42 º 6. Heating element 7. Flow sensor Switch Figure 12 1 8 | Bosch Tronic TR4000C Electric Tankless Water Heaters - BTC 722203301 A (08.2022)
  • Page 19: Installation Checklist

    Water heater completely fi lled with water BEFORE operating the unit? Air purged from water heater and piping? Water connections tight and free of leaks? Table 6 | 19 Bosch Tronic TR4000C Electric Tankless Water Heaters- BTC 722203301 A (08.2022)
  • Page 20: Operation

     Households with small children, disabled, or elderly persons may require a lower temperature setting.     A lower setting is more economical and reduces the risk of scalding. 2 0 | Bosch Tronic TR4000C Electric Tankless Water Heaters - BTC 722203301 A (08.2022)
  • Page 21: Maintenance

    2. Pull bottom of cover forward and swing out (pos.1). Lift away from tabs on the top of the back cover (pos.2). Do not fully remove cover. | 21 Bosch Tronic TR4000C Electric Tankless Water Heaters- BTC 722203301 A (08.2022)
  • Page 22: Draining The Heater

    5. When reassembling, reverse the steps. NOTICE: PRODUCT DAMAGE, PROPERTY DAMAGE  Upon reinstallation, ensure O-ring is in good condition and properly installed before securing element containing cap. 2 2 | Bosch Tronic TR4000C Electric Tankless Water Heaters - BTC 722203301 A (08.2022)
  • Page 23: Descaling The Heating Element

    The heating element will be damaged if energized for even a short time while heating canister is dry. Failures due to “dry-firing” ARE NOT covered by warranty. | 23 Bosch Tronic TR4000C Electric Tankless Water Heaters- BTC 722203301 A (08.2022)
  • Page 24: Troubleshooting

    Turn off water supply at the shutoff valve. Shut off power to the If tank is leaking water heater, and review warranty to see if heater is still within warranty period Table 8 2 4 | Bosch Tronic TR4000C Electric Tankless Water Heaters - BTC 722203301 A (08.2022)
  • Page 25: Thermal Cutout

    Turn the circuit breakers back on and run a hot water faucet to test that the water heater activates. Figure 19 | 25 Bosch Tronic TR4000C Electric Tankless Water Heaters- BTC 722203301 A (08.2022)
  • Page 26: Testing The Heating Elements

    Point #2 Figure 21 2. If either of the elements show no continuity, they have likely failed and either the unit or element should be replaced. 2 6 | Bosch Tronic TR4000C Electric Tankless Water Heaters - BTC 722203301 A (08.2022)
  • Page 27 Installation Manual NOTES: | 27 Bosch Tronic TR4000C Electric Tankless Water Heaters- BTC 722203301 A (08.2022)
  • Page 28 United States Bosch Thermotechnology Corp. 65 Grove St. Watertown, MA 02472 Tel: 866-642-3198 www.bosch-thermotechnology.us BTC 722203301 A | 105521 | 08.2022 Bosch Thermotechnology Corp. reserves the right to make changes without notice due to continuing engineering and technological advances.

This manual is also suitable for:

Tr4000c-3Tr4000c-6Tr4000c-8Tr4000c-10Tr4000c-13

Table of Contents