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Bosch BC2680RA Installation Manual

Condensing gas water heater (outdoor installation)
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Installation Manual

External Models
To be installed and serviced only
by an authorised person
This appliance is not suitable for
use as a pool heater
The "authorised installing person" is
responsible for:
1. Correct commissioning of this
2. Ensure unit performs to the
specifications stated on the
rating label.
3. Demonstrate operation of unit to
customer before leaving.
AU Service Department: 1300 30 70 37
NZ Service Department: 0800 54 33 52
Rev. 10/14
Installation Instructions
This appliance must be installed in accordance with the manufacturer's
installation instructions, AS/NZS5601, AS/NZS3500.4, AS3000 wiring
regulations and all Local Building, Water and Gas fitting regulations.
Failure to install this appliance in accordance with these installation
instructions may void warranty
In the interest of continued product improvement, Bosch reserves the
right to alter these specifications without notice.



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  Summary of Contents for Bosch BC2680RA

  • Page 1: Installation Manual

    Failure to install this appliance in accordance with these installation instructions may void warranty AU Service Department: 1300 30 70 37 NZ Service Department: 0800 54 33 52 In the interest of continued product improvement, Bosch reserves the right to alter these specifications without notice. SBB808C Rev. 10/14...
  • Page 2: Table Of Contents

    Installation Instructions Contents 1. Included Accessories ................4 2. Optional Accessories ................4 3. Dimensions ..................... 5 4. Component Details ................. 6 5. Before Installation .................. 7 6. Specifications ..................8 7. Choosing Installation Site ..............9 8. Installation Clearances ................10 9.
  • Page 3 Installation Manual Robert Bosch (Australia) Pty. Ltd. CONDENSING GAS WATER HEATER BC2680RA BC2680RA5 (Outdoor Installation) BC2180RA BC2180RA5 Potential dangers from accidents during installation and use are divided into the following three categories. Closely observe these warnings, they are critical to your safety.
  • Page 4: Included Accessories

    Installation Instructions The following accessories are included with the unit. Included Accessories Check for any missing items before starting installation. Part Shape Part Shape Q’ty Q’ty Owner's Guide, Anchoring Screw Installation Manual each (this document) The accessories listed below are not Optional Accessories included with the units, but may be necessary for installation.
  • Page 5: Dimensions

  • Page 6: Component Details

    Installation Instructions Component Details • BC2680RA series, BC2180RA series Secondary heat exchanger Flue collar High limit switch Primary heat exchanger Water level electrode Anti-frost heater Thermal fuse Neutraizer Flame rod Anti-frost heater Ignition plug Igniter Burner manifold & gas valve...
  • Page 7: Before Installation

    • Check that the gas supply line is sized for BC2680RA(5): NG 175 MJ/hr, LP 185 MJ/hr BC2180RA(5): NG 145 MJ/hr, LP 149 MJ/hr for this unit. • DO NOT OPERATE WITH ANY OTHER GAS TYPE.
  • Page 8: Specifications

    Installation Instructions • Specifications may be changed without prior notice. Specifications • The capacity may differ slightly, depending on the water pressure, water supply, piping conditions, and water temperature. Specifications Model Name BC2680RA BC2680RA5 BC2180RA BC2180RA5 Approval certification number SAI-400151 Type...
  • Page 9: Choosing Installation Site

    Installation Instructions Choosing Installation Site * Locate the appliance in an area where water leakage from the unit or connections will not result in damage to the area adjacent to the appliance or to the lower floors of the structure. When such locations cannot be avoided, it is recommended that a suitable drain pan, adequately drained, be installed under the appliance.
  • Page 10: Installation Clearances

    Installation Instructions CAUTION • Install the water heater in a location where it is free from obstacles and stagnant air. • Consult with the customer concerning the location of installation. • Do not install the water heater near staircases or emergency exits. •...
  • Page 11 Installation Instructions CLEARANCES FOR FLUE TERMINAL (front of heater) The location of the flue terminal must comply with the clearances shown on this page. If you are unsure about clearances not indicated here, in general refer to AS/NZS5601, or your local authority. In Western Australia refer to the WA Office of Energy rules and regulations.
  • Page 12: Installation

    Installation Instructions Installation Securing to the wall • Installation must conform with all local building, water or Gas Regulations or AS/NZS5601. • The weight of the device will be applied to the wall. If the strength of the wall is not suffi- cient, reinforcement must be done to prevent the transfer of vibration.
  • Page 13: Gas Piping

    Installation Instructions Gas Piping Follow the instructions from the gas supplier. The appliance must be disconnected from the gas supply piping system during any pressure testing of that system at test pressures in excess of 3.5 kPa. The appliance and its gas connections must be leak tested before placing the appliance in operation. The inlet gas pressure must be within the range specified.
  • Page 14: Water Piping

    Installation Instructions Installation and service must be performed Water Piping by a qualified plumber. Observe all applicable codes. This appliance is suitable for potable water applications. Do not use this appliance if any part has been underwater. Immediately call a qualified service technician to inspect the appliance and replace any part of the control system and gas control which has been under water.
  • Page 15 Installation Instructions Supply water piping Hot water piping • Do not use PVC, iron, or any piping which has • Do not use lead, PVC, iron or any piping which been treated with chromates, boiler seal or other has been treated with chromates, boiler seal or chemicals.
  • Page 16: Condensate Piping

    Installation Instructions Condensate Piping PLEASE FOLLOW LOCAL CODES ABOUT CONDENSATE PIPING. • This water heater is a high efficiency, fully condensing appliance which produces condensate during operation. Therefore, it is necessary to install condensate piping. The water heater incorporates a col- lection, neutralization, and removal system which must be properly drained in order to ensure proper operation of this appliance.
  • Page 17: Electrical Wiring

    Installation Instructions Consult a qualified electrician Electrical Wiring for the electrical work. Do not connect electrical power to the unit until all electrical wiring has been completed. Disconnect Power This appliance must be electrically earthed in accordance with Electrical Authority Regulations. Caution: Label all wires prior to disconnection when servicing controls.
  • Page 18: Remote Controller

    The bathroom and sub controllers have a maximum temperature setting of 50°C for safety. To ensure compliance with Australian Standard AS/NZS3500.4, for sanitary areas, which may be achieved by using a Bosch appliance with a delivery temperature greater than 50°C and installed with a tempering valve. In New Zealand, please refer to the New Zealand Building Code and all other applicable electrical, gas fitting and plumbing codes.
  • Page 19 Installation Instructions Connecting Remote Controller Cord to Unit • Tie the redundant cord outside the water heater. Do not put the extra length inside the water heater. • The remote controller cord can be extended up to 20m. • Be sure to hand tighten when screwing to the terminal block. Power tools may cause damage to the terminal block.
  • Page 20: Maintenance

    • Do not obstruct the flow of combustion and ventilation air. • See Owner's Guide for further maintenance or consult Bosch Hot Water for recommended service checks. Warning: There is a scald potential if the output temperature is set too high.
  • Page 21: Lighting Instructions

    Installation Instructions WARNING A fire or explosion may result if these instructions are not followed, which may cause lose of life, personal injury or property damage. Lighting Instructions This water heater does not have a pilot. It is equipped with an ignition device that automatically lights the burner.
  • Page 22: Water Quality

    Installation Instructions WATER QUALITY All Bosch water heating appliances are constructed from high quality materials and components and all are certified for compliance with relevant parts of Australian and New Zealand gas, electrical and water standards. Whilst Bosch water heaters are warranted against defects, the warranty is conditional upon correct installation and use, in accordance with detailed instructions provided with the heater.