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Bosch C1210ES Applications Manual

Bosch greentherm & therm tankless water heaters
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GREENTHERM & THERM
Tankless Water Heaters
C1210ES/ESC, C1050ES, C950ES, 940ES, 940ESO, 830ES, 520HN, 520PN, 330PN
Applications Manual
WARNING:
If the information in this manual is not followed
exactly, a re or explosion may result causing
property damage, personal injury or death.
Follow each appliance's instructions precisely.
Installation and service must be performed by a
trained and certi ed installer, service agency or the
gas supplier.
Application drawings in this manual are conceptual
only and do not purport to address all design,
installation, code, or safety considerations.
The diagrams in this manual are for reference use by
code of cials, designers and licensed installers. It is
expected that installers have adequate knowledge of
national and local codes, as well as accepted
industry practices, and are trained on equipment,
procedures, and applications involved. Drawings are
not to scale.
Refer to the appliance and accessory installation
manuals for additional detailed information!

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  Summary of Contents for Bosch C1210ES

  • Page 1 Drawings are not to scale. Refer to the appliance and accessory installation manuals for additional detailed information! GREENTHERM & THERM Tankless Water Heaters C1210ES/ESC, C1050ES, C950ES, 940ES, 940ESO, 830ES, 520HN, 520PN, 330PN Applications Manual...
  • Page 2 Applications Manual 2 | THERM/GREENTHERM Tankless Water Heaters Data subject to change Bosch Thermotechnology Corp.
  • Page 3: Table Of Contents

    11.1 Booster applications 12 Commercial Solar Applications 13 Commercial Water Heating Applications 13.1 Commercial Kitchen applications 13.2 Tank loading with domestic hot water recirculation 13.3 Advanced tank loading commercial hot water system 13.4 Common Venting Bosch Thermotechnology Corp. Data subject to change...
  • Page 4: Explanation Of Symbols

    Important information in cases where there is no risk of personal injury or material losses is identi- ed by the symbol shown on the left. It is bordered by horizontal lines above and below the text. Data subject to change Bosch Thermotechnology Corp.
  • Page 5: Introduction

    The following are certi cation stamps and explanations of the most common applications of the Bosch Therm that are speci c to one or more Bosch tankless water tankless water heaters. Application drawings are shown heaters. These certi cations bring the appliances in ac-...
  • Page 6: Tankless Water Heater Accessories

    Part number 520 HN 520 PN 330 PN Freeze prevention kit 7709003775 ¥ ¥ ¥ Isolation valve kit with PRV ES ISO KIT ¥ ¥ ¥ Power vent w/back draft apper ¥ ¥ Data subject to change Bosch Thermotechnology Corp.
  • Page 7: Pump Sizing For Circulation

    Maximum flow allowed for mini-tank DHW recirculation is 2 GPM. 5.1 Pressure drop curves C 950 ES C 1210 series 830 ES, C 1050 ES 940 ES / ESO Flow (GPM) igure 1 Pressure drop curves Bosch Thermotechnology Corp. Data subject to change...
  • Page 8: Domestic Hot Water Circulation

    0.02 0.03 " Pex 0.53 0.04 0.06 " Pex If the Bosch tankless water heater provides the ½ 0.12 0.18 " Pex heat source for recirculated water , the heat exchanger warranty is decreased. Please refer Source: 2009 International Plumbing Code to the installation manual for detailed warranty period information.
  • Page 9: Tank Loading

    * Calculations based on 120°F Set-point temperature, 107°F shower temperature, 2.5 GPM showerhead ow rate, 1.5 GPM sink ow rate, adequate water pressure and gas supply. Variation from these parameters may alter performance. GPM shown is the hot water ow rate at 120°F Set-point temperature. Bosch Thermotechnology Corp. Data subject to change...
  • Page 10: Water Heater Sizing & Speci Cations

    1 0 | THERM/GREENTHERM Tankless Water Heaters 6 Water Heater Sizing & Speci cations This section describes the water heaters available from Bosch Thermotechnology Corp. and provides a general ˚F overview to the speci cations of each particular model. 77˚...
  • Page 11 Temperature rises above 110 °F or more, or output temperatures above 140 °F require either a commercial unit or optional accessories such as a high temperature kit. Bosch Thermotechnology Corp. Data subject to change...
  • Page 12: Tankless Water Heater Speci Cations

    (Schedule 40) 100-140°F 100-140°F 100-140°F 100-140°F 100-140°F 100-180°F 100-184°F 100-184°F 100-184°F 100-184°F 100-184°F (ESC) Temperature range °F 100-140°F (requires HT (requires HT (requires HT (requires HT (requires HT (ES) kit) kit) kit) kit) kit) Data subject to change Bosch Thermotechnology Corp.
  • Page 13 AQ4 not allowed vent kit vent kit Venting diameter Inches Type B-vent Type B-vent Type B-vent Vent material recommended recommended recommended Temperature range °F High to low High to low High to low Bosch Thermotechnology Corp. Data subject to change...
  • Page 14: Water Quality

    If water quality exceeds one or more of the values speci ed below, Bosch recommends installing a water conditioner or softener. If the tankless water heater is operating in applications where the outlet temperature exceeds 140°F, a water softening system is strongly...
  • Page 15: Applications Legend

    All work pertaining to the installation shall be in full compliance with all legal requirements, including national and local codes. Best installation practices should be followed. Bosch Thermotechnology Corp. Data subject to change...
  • Page 16: Domestic Hot Water Applications

    9 Domestic Water Heating Applications Potable water Potable water is water that is suitable for drinking. Bosch Thermotechnology Corp. appliances are approved to heat potable water only. Heating any other liquid other than po- table water will void the manufacturer’s warranty covering the appliance.
  • Page 17: Applications Manual Therm/Greentherm Tankless Water Heaters

    THERM/GREENTHERM Tankless Water Heaters | 17 9.1 Low volume applications Low volume applications cover the small applications in Applicable models: Bosch 330 PN, 520 PN, 520 HN. which a large water heater would be inef cient. Common applications for these appliances include cottages, cabins, and summer camps.
  • Page 18: Whole House Applications

    (page 9) to determine the best Bosch water heater model for your application. An enhanced design combining an Ariston mini tank in line after the Bosch water heater will reduce wait times and improve temperature stability. 9.2.1 Bosch gas water heater...
  • Page 19 9.2.2 Bosch gas water heater with buffer tank Applicable models: Bosch 520 PN, 520 HN, 830 ES, Below is an example of a Bosch gas tankless water heater 940 ES, 940 ESO, C 950 ES, C 1050 ES, C 1210 ES.
  • Page 20 Insulate piping in hot water Applicable models: Bosch 520 PN, 520 HN, 830 ES, recirculation loop to limit heat loss. 940 ES, 940 ESO, C 950 ES, C 1050 ES, C 1210 ES, Mini tank: Bosch Tronic 3000T ES8.
  • Page 21 Please refer to the installation manual for detailed warranty period information. Applicable models: Bosch 830 ES, 940 ES, 940 ESO, C 950 ES, C 1050 ES, C 1210 ES. Bosch Thermotechnology Corp. Data subject to change...
  • Page 22: High Volume Potable Water Heating

    Potable water mercial applications. Use of the Intelligent Cascading Kit , Potable water is water that is suitable for drinking. Bosch unlike other parallel applications, maintains the activation Thermotechnology Corp. appliances are approved to heat ow rate of a single appliance.
  • Page 23 For applications with 200ft of pipe or more. balancing pressures between the appliances. Applicable models: Bosch 830 ES, 940 ES, 940 ESO, Locate appliances close together for improved C 950 ES, C 1050 ES, C 1210 ES performance.
  • Page 24 For applications with 200ft of pipe or less. balancing pressures between the appliances. Applicable models: Bosch 830 ES, 940 ES, 940 ESO, Locate appliances close together for improved C 950 ES, C 1050 ES, C 1210 ES performance.
  • Page 25: Parallel Unit Applications

    Applications Manual THERM/GREENTHERM Tankless Water Heaters | 25 10.2 Parallel unit applications Two Bosch water heaters plumbed in parallel will have Applicable models: Bosch 830 ES, 940 ES, 940 ESO, double the ow rate. However, the activation rate C 950 ES, C 1050 ES, C 1210 ES.
  • Page 26: Residential Solar Applications

    C 1050 ES, C 1210 ES * If local codes require higher setpoint or to increase the recovery capacity of the water heater, contact Bosch Thermotechnology. See Chapter 5.2 for recirculation pump parameters Data subject to change Bosch Thermotechnology Corp.
  • Page 27: Booster Applications

    Thermostatic valve 2 acts as a tempering valve that brings potentially hot water temperatures down to a level that is safe for the inhabitants Applicable models: Bosch 830 ES, 940 ES, 940 ESO, C 950 ES, C 1050 ES, C 1210 ES. Bosch Thermotechnology Corp.
  • Page 28 See Chapter 5.2 for recirculation pump parameters Applicable models: Bosch 830 ES, 940 ES, 940 ESO, C 950 ES, C 1050 ES, C 1210 ES. Data subject to change...
  • Page 29: Commercial Solar Applications

    (e.g. schools, tness centers). For additional system details, consult the Bosch Solar Technical Guide. See Chapter 5.2 for recirculation pump parameters Applicable models: Bosch 830 ES, 940 ES, 940 ESO, C 950 ES, C 1050 ES, C 1210 ES. Bosch Thermotechnology Corp.
  • Page 30: Commercial Water Heating Applications

    Applications Manual 3 0 | THERM/GREENTHERM Tankless Water Heaters 13 Commercial Water Heating Applications Introduction This section gives a general overview of high volume, high temperature water heating for commercial applications. Data subject to change Bosch Thermotechnology Corp.
  • Page 31: Commercial Kitchen Applications

    13.1.1 Commercial kitchen with domestic hot water commercial dishwasher, a hot water circulation loop is recirculation recommended. Applicable models: Bosch 830 ES, 940 ES, 940 ESO, C 950 ES, C 1050 ES, C 1210 ES, C 1210 ESC. See Chapter 5.2 for recirculation pump parameters...
  • Page 32: Tank Loading With Domestic Hot Water Recirculation

    Do not use the Intelligent Cascading Kit in tank loading applications. See Chapter 5.2 for recirculation pump parameters Applicable models: Bosch 830 ES, 940 ES, 940 ESO, C 950 ES, C 1050 ES, C 1210 ES, C 1210 ESC. supply...
  • Page 33: Advanced Tank Loading Commercial Hot Water System

    Applicable models: Bosch 830 ES, 940 ES, 940 ESO, C 950 ES, C 1050 ES, C 1210 ES, C 1210 ESC. Bosch Thermotechnology Corp.
  • Page 34: Common Venting

    100' (30m) between the last appliance and the termination. Equivalent length for — 90° Elbow: 80" — 45° Elbow: 40" Data subject to change Bosch Thermotechnology Corp.
  • Page 35 Wall Clamp DIA4" 7736501256 Wall Clamp DIA6" 7736501255 Flat Roof Flashing DIA6" 7736501095 PP Extension DIA4" 305 QF 7736501097 Steep Roof Flashing 0-25Ý DIA6" 7736501093 Steep Roof Flashing 25-45Ý DIA6" 7736501091 Wall Bracket DIA6" 7736501113 Bosch Thermotechnology Corp. Data subject to change...
  • Page 36 Schematic shows both vertical and horizontal setup. 45° and 90° elbows can be used as needed. The vent pipe must over its full length be sloped toward the water heaters and low points are not permitted. Data subject to change Bosch Thermotechnology Corp.
  • Page 37 Applications Manual THERM/GREENTHERM Tankless Water Heaters | 37 Side by side con guration Back to back con guration Bosch Thermotechnology Corp. Data subject to change...
  • Page 38 Applications Manual 3 8 | THERM/GREENTHERM Tankless Water Heaters Data subject to change Bosch Thermotechnology Corp.
  • Page 39 Applications Manual THERM/GREENTHERM Tankless Water Heaters | 39 Bosch Thermotechnology Corp. Data subject to change...
  • Page 40 United States and Canada Bosch Thermotechnology Corp. 50 Wentworth Avenue Londonderry, NH 03053 Tel: 866-330-2730 Fax: 603-965-7581 www.bosch-climate.us BTC 740001301 E / 03.2013...