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Installation Manual
Electric Tankless Water Heaters
TRONIC 6100 C
TR6100C-18 | TR6100C-27
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
Related Manuals for Bosch TRONIC 6100 C
Summary of Contents for Bosch TRONIC 6100 C
- Page 1 Installation Manual Electric Tankless Water Heaters TRONIC 6100 C TR6100C-18 | TR6100C-27 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.
- Page 2 Installation Manual Bosch Tronic 6100 C Electric Tankless Water Heaters - BTC 724001301 A (08.2022)
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Page 3: Table Of Contents
11.4 Removing a Heating Element 11.5 Descaling the Heating Element 12 Troubleshooting 12.1 High Limit Switches 12.2 Checking Thermostat Operation 12.3 Testing the Heating Element 12.4 Testing / Changing a Triac Bosch Tronic 6100 C Electric Tankless Water Heaters- BTC 724001301 A (08.2022) -
Page 4: Key To Symbols And Safety Instructions
WARNING: IMPROPER OR DANGEROUS OPERATION Installations Must Comply With: Local, state, provincial, and national codes, laws, regulations,ordinances and the latest version of the National Electrical Code, NFPA No. 70. Bosch Tronic 6100 C Electric Tankless Water Heaters - BTC 724001301 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 6100 C Electric Tankless Water Heaters- BTC 724001301 A (08.2022)
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Page 6: Prepare The Water Heater
WARNING: FIRE, EXPLOSION Please keep any fl ammable materials at least 24” (61cm) away from the water heater and hot outlet pipe. Bosch Tronic 6100 C Electric Tankless Water Heaters - BTC 724001301 A (08.2022) -
Page 7: Locating The Water Heater
Such failures ARE NOT covered by warranty. Bosch Tronic 6100 C Electric Tankless Water Heaters- BTC 724001301 A (08.2022) -
Page 8: Centralized Location
Damage caused by scale is not covered by the warranty. T o promote appliance service life, it is strongly recommended to follow the maintenance procedures in this manual. Bosch Tronic 6100 C Electric Tankless Water Heaters - BTC 724001301 A (08.2022) -
Page 9: Water Heater Components
12 High Limit Switch LED Indicator 13 Terminal Block Cold Water Intlet 14 Ground Connection Hot Water Outlet Electrical Knockout/Strain Relief 15 Thermistor Inlet Water Filter 16 Flow Switch Bosch Tronic 6100 C Electric Tankless Water Heaters- BTC 724001301 A (08.2022) -
Page 10: Dimensions
Installation Manual 5 Dimensions 13 1/4" 6 3/8" 8 1/2" 6 1/16" 5 1/8" 20 1/4" Figure 3 Dimensions 1 0 | Bosch Tronic 6100 C Electric Tankless Water Heaters - BTC 724001301 A (08.2022) -
Page 11: Technical Specifi Cations
* Performance will reduce if voltage reduces Flow Rate (GPM) Temperature Rise Δt TR6100C-18 TR6100C-27 35°F 3.51 5.26 45°F 2.73 4.09 77°F 1.59 2.39 Table 5 | 11 Bosch Tronic 6100 C Electric Tankless Water Heaters- BTC 724001301 A (08.2022) -
Page 12: Installation
6. Choose a suitable mounting surface that is solid and secure. WARNING: ELECTRIC SHOCK HAZARD Do not install the unit above electrical boxes or junctions. 1 2 | Bosch Tronic 6100 C Electric Tankless Water Heaters - BTC 724001301 A (08.2022) - Page 13 9. Mount the unit to the wall with four (4) screws of at least one (1) inch (25.4mm) in length at the marked points. See Figure 9. M ounting screws not included with the product. | 13 Bosch Tronic 6100 C Electric Tankless Water Heaters- BTC 724001301 A (08.2022)
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Page 14: Plumbing
Failure of the water heater due to lime scale build-up on the heating surface, low pH, or other imbalance IS NOT covered by the warranty. See Section 3 Water Quality Requirements. 1 4 | Bosch Tronic 6100 C Electric Tankless Water Heaters - BTC 724001301 A (08.2022) -
Page 15: Installation Example
BALL VALVE SHUT-OFF VALVE COLD WATER INLET UNION HOT WATER OUTLET WATER LEAK DETECTION PRESSURE RELIEF SENSOR VALVE (IF REQUIRED BY LOCAL CODE) DRAIN Figure 10 | 15 Bosch Tronic 6100 C Electric Tankless Water Heaters- BTC 724001301 A (08.2022) -
Page 16: Scalding
Such damages ARE NOT covered by water heater warranty. 1 6 | Bosch Tronic 6100 C Electric Tankless Water Heaters - BTC 724001301 A (08.2022) -
Page 17: Electrical Connection
T he heater must be connected to dedicated circuit breakers. 1 8 - 27kW models require 3 sets of wires and ground. See Wiring Diagrams for additional information. | 17 Bosch Tronic 6100 C Electric Tankless Water Heaters- BTC 724001301 A (08.2022) -
Page 18: Wiring Diagrams
#4 TO SWITCH CHANGE BETWEEN POSITION OF FAHRENHEIT DIP SWITCHES AND CELSIUS 1 2 3 4 FAHRENHEIT = ON CELSIUS = OFF Figure 12 1 8 | Bosch Tronic 6100 C Electric Tankless Water Heaters - BTC 724001301 A (08.2022) -
Page 19: Internal Wiring Diagram For 18Kw
Installation Manual 7.8.2 Internal Wiring Diagram for 18kW Figure 13 | 19 Bosch Tronic 6100 C Electric Tankless Water Heaters- BTC 724001301 A (08.2022) -
Page 20: Internal Wiring Diagram For 27Kw
Installation Manual 7.8.3 Internal Wiring Diagram for 27kW Figure 14 2 0 | Bosch Tronic 6100 C Electric Tankless Water Heaters - BTC 724001301 A (08.2022) -
Page 21: 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 | 21 Bosch Tronic 6100 C Electric Tankless Water Heaters- BTC 724001301 A (08.2022) -
Page 22: Operation
The suggestions above are only made to help minimize the potential for freeze damage and are not to be construed as the guaranteed method for dealing with freeze possibilities. Figure 15 2 2 | Bosch Tronic 6100 C Electric Tankless Water Heaters - BTC 724001301 A (08.2022) -
Page 23: Maintenance
It is recommended to fl ush the unit once a year under normal conditions or once every six months if the water supply has unusually hard water. Figure 17 | 23 Bosch Tronic 6100 C Electric Tankless Water Heaters- BTC 724001301 A (08.2022) -
Page 24: Cleaning The Inlet Pre-Filter
Siphoning the water out through any lower service valve on the inlet side. Keep a hot water faucet open while siphoning the water out. 2 4 | Bosch Tronic 6100 C Electric Tankless Water Heaters - BTC 724001301 A (08.2022) -
Page 25: Removing A Heating Element
Figure 23 Figure 21 Notch in Heating Canister Element bottom Tab (located on inside of canister) Figure 24 Figure 22 | 25 Bosch Tronic 6100 C Electric Tankless Water Heaters- BTC 724001301 A (08.2022) - Page 26 Figure 26 8. Insert new heating element into heating canister Heating Canister Tab (located on Notch in inside of canister) Element bottom Figure 29 2 6 | Bosch Tronic 6100 C Electric Tankless Water Heaters - BTC 724001301 A (08.2022)
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Page 27: Descaling The Heating Element
The water heater must be full of water before the power is turned on. The heating element will be damaged if energized while heating canister is dry. Failures due to “dry-firing” ARE NOT covered by warranty. | 27 Bosch Tronic 6100 C Electric Tankless Water Heaters- BTC 724001301 A (08.2022) -
Page 28: Troubleshooting
Test the heating element according to Section 12.3 Contact a qualifi ed electrician or your local authorized distributor for Electrical malfunction service Table 7 2 8 | Bosch Tronic 6100 C Electric Tankless Water Heaters - BTC 724001301 A (08.2022) - Page 29 If draining of the water heater is necessary, open the T&P valve or a hot water tap to prevent vacuum buildup in the heating canister and piping. | 29 Bosch Tronic 6100 C Electric Tankless Water Heaters- BTC 724001301 A (08.2022)
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Page 30: High Limit Switches
Repeated tripping of the High Limit Switch (TCO) indicts a problem. Call a technician if the high limit needs to be reset frequently. Measure resistance across contacts after resetting and note value. 3 0 | Bosch Tronic 6100 C Electric Tankless Water Heaters - BTC 724001301 A (08.2022) -
Page 31: Testing The Heating Element
19.2 ± 1.0 ohms 12.8 ± 0.7 ohms Table 9 4. If an element tests bad, it must be replaced following the procedure in Section 11.4. | 31 Bosch Tronic 6100 C Electric Tankless Water Heaters- BTC 724001301 A (08.2022) -
Page 32: Testing / Changing A Triac
2. Take a phote of triac wiring for reinstallation. Disconnect the three (3) wire connectors on the triac. Remove the wires. Figure 34 4. Locate the triacs Figure 37 Figure 35 3 2 | Bosch Tronic 6100 C Electric Tankless Water Heaters - BTC 724001301 A (08.2022) - Page 33 Alternatively, please visit our Service & Support webpage to fi nd FAQs, videos, service bulletins, and more; www.boschheatingcooling.com/service or use your cellphone to scan the code below. | 33 Bosch Tronic 6100 C Electric Tankless Water Heaters- BTC 724001301 A (08.2022)
- Page 34 Installation Manual NOTES: 3 4 | Bosch Tronic 6100 C Electric Tankless Water Heaters - BTC 724001301 A (08.2022)
- Page 35 Installation Manual NOTES: | 35 Bosch Tronic 6100 C Electric Tankless Water Heaters- BTC 724001301 A (08.2022)
- Page 36 United States Bosch Thermotechnology Corp. 65 Grove St. Watertown, MA 02472 Tel: 866-642-3198 www.bosch-thermotechnology.us BTC 722103301 A | 105523 | 08.2022 Bosch Thermotechnology Corp. reserves the right to make changes without notice due to continuing engineering and technological advances.