Buderus Logamax plus GB162 Applications Manual
  1. Manuals
  2. Brands
  3. Buderus Manuals
  4. Boiler
  5. Logamax plus GB162
  6. Applications manual

Buderus Logamax plus GB162 Applications Manual

Gas condensing boiler
Hide thumbs Also See for Logamax plus GB162:
Table of Contents

Advertisement

Quick Links

See also: Technical Manual , Applications Manual
Applications Manual
Gas condensing boiler
WARNING!
Improper installation, adjustment, alteration, service or maintenance
can cause injury, loss of life or property damage. Refer to the
installation and operating manuals. For assistance or additional
information, consult a trained and certified installer, service agency
or the gas supplier.
CAUTION!
The installation and operating manuals are part of the documentation
that is delivered to the installation's operator. Go through the
information in this manual with the owner/operator and make sure that
he or she is familiar with the appliance and its operation.
NOTICE!
In the Commonwealth of Massachusetts this boiler must be installed
by a licensed Plumber or Gas Fitter.
Logamax plus GB162

Advertisement

Table of Contents
loading
Need help?

Need help?

Do you have a question about the Logamax plus GB162 and is the answer not in the manual?

Questions and answers

Related Manuals for Buderus Logamax plus GB162

Summary of Contents for Buderus Logamax plus GB162

  • Page 1 NOTICE! In the Commonwealth of Massachusetts this boiler must be installed by a licensed Plumber or Gas Fitter. Logamax plus GB162...
  • Page 2 GB162 Applications Manual Logamax plus GB162 applications manual | 03.2013 Technical specifi cations are subject to change without prior notice...

  • Page 3: Table Of Contents

    Appendix 2 - Multi-boiler cascade with 0-10V heat demand input Appendix 3 - Adding DHW priority to System 1 Appendix 4 - Adding DHW priority to a multi-boiler cascade Logamax plus GB162 applications manual | 03.2013 Technical specifi cations are subject to change without prior notice...

  • Page 4: Reference Documents

    • Fill water and chemistry • Eliminating system leaks • Aluminum safe anti-freeze guidelines • Buderus selected suppliers of water treatment products Table 1 Logamax plus GB162 applications manual | 03.2013 Technical specifi cations are subject to change without prior notice...

  • Page 5: Boiler Components & Controls

    These application sections contain diagrams of preferred piping with associated wiring diagrams and controller programming, along with additional important information. Logamax plus GB162 applications manual | 03.2013 Technical specifi cations are subject to change without prior notice...

  • Page 6: Periphery

    LWCO and Manual Reset High Limit. Fig. 1 Low Water Cutoff views NOTE: Power supply to LWCO and external high limit not shown for clarity. Follow manufacturer’s instructions. Logamax plus GB162 applications manual | 03.2013 Technical specifi cations are subject to change without prior notice...

  • Page 7: Low Loss Header (Llh)

    In the system Logamax plus GB162 applications manual | 03.2013 Technical specifi cations are subject to change without prior notice...
  • Page 8 A reduction of boiler output can in many cases reach 40% and completely change system hydraulics. Logamax plus GB162 applications manual | 03.2013 Technical specifi cations are subject to change without prior notice...

  • Page 9: Cascade Kits

    GB162 Applications Manual 2.3 Cascade Kits The Logamax plus GB162 cascade system can be installed in 2 different configurations (fig. 5). Buderus offers cascade systems in TL and TR configurations for The gas connection can be made to either side of the up to 4 boilers.

  • Page 10: Am10 Outdoor Reset Modulating Boiler Control

    GB162 Applications Manual 2.4 AM10 Outdoor Reset Modulating Boiler Control Product Description The AM10 is a modulating outdoor reset control for Buderus boilers equipped with the EMS bus. It sets the supply water temperature based on outdoor temperature. The boiler fires, runs and modulates based on the information received from the AM10, and the delta T between supply and return.
  • Page 11 Outdoor Temperature [°F] Fig. 7 Heating curve chart in Degrees Fahrenheit Outdoor Panel Cast Iron Radiant Floor Baseboard Hydro Air Temperature Radiators Radiators (°F) Logamax plus GB162 applications manual | 03.2013 Technical specifi cations are subject to change without prior notice...
  • Page 12 Outdoor Temperature [°C] ig.8 Heating curve chart in Degrees Celsius Outdoor Panel Cast Iron Radiant Floor Baseboard Hydro Air Temperature Radiators Radiators (°C) Logamax plus GB162 applications manual | 03.2013 Technical specifi cations are subject to change without prior notice...
  • Page 13 AM10. For multi-boiler systems add the MCM10 cascade module between the AM10 and the boilers. Multi-Zone Relay Box Fig. 9 Installation example with zone relay box Logamax plus GB162 applications manual | 03.2013 Technical specifi cations are subject to change without prior notice...

  • Page 14: Rc35 Room Controller And User Interface

    Boiler Cascade Modules. Buderus offers prefabricated cascade manifolds with LLH for 2, 3 and 4 boilers. - DHW preparation including control of a DHW recirculation pump Logamax plus GB162 applications manual | 03.2013 Technical specifi cations are subject to change without prior notice...
  • Page 15 Party program Pause function Thermal desinfection Service menu: Service Menu THU 06.07. 2011 4:45pm Quick operation 71.9 ° Room Settings Diagnosis Servicing Reset Logamax plus GB162 applications manual | 03.2013 Technical specifi cations are subject to change without prior notice...
  • Page 16 Mounting the RC35 in the room and utilizing a remote room sensor (part number: 5 993 226): Fig.12 RC35 wiring using its remote room sensor Logamax plus GB162 applications manual | 03.2013 Technical specifi cations are subject to change without prior notice...
  • Page 17 • Input: 1 x Heating Zone Supply Sensor or System Supply Sensor • Output: 1 x Heating Zone Pump 120V or System Pump 120V Logamax plus GB162 applications manual | 03.2013 Technical specifi cations are subject to change without prior notice...
  • Page 18 1 x Collector Sensor 1 x Solar Tank Sensor (Bottom) Fig.15 Solar Thermal DHW Module SM10 • Outputs: 1 x Solar Thermal Pump 120V Logamax plus GB162 applications manual | 03.2013 Technical specifi cations are subject to change without prior notice...
  • Page 19 1) Requires 120V mixing valve with 3-point floating actuator. Maximum current: 5A 2) Hot: increase hot water delivery to zone Cold: decrease hot water delivery to zone Logamax plus GB162 applications manual | 03.2013 Technical specifi cations are subject to change without prior notice...
  • Page 20 Warning! Ground yel/grn must not be used as a control line. Ensure phases are connected correctly. Logamax plus GB162 applications manual | 03.2013 Technical specifi cations are subject to change without prior notice...
  • Page 21 Warning! Ground yel/grn must not be used as a control line. Ensure phases are connected correctly. Logamax plus GB162 applications manual | 03.2013 Technical specifi cations are subject to change without prior notice...

  • Page 22: 0-10V Bms Interface & Common Fault Module Em10

    • Input: 0-10V • Common fault dry contact output NO/NC • 120V supply Fig.16 EM10 0-10V BMS Interface Module Logamax plus GB162 applications manual | 03.2013 Technical specifi cations are subject to change without prior notice...

  • Page 23: Mcm10 Multi Cascade Module

    RC35 energy management system The MCM10 controls the system supply temperature, which requires a system supply temperature sensor strategically placed. Fig.17 Multi Cascade Module (MCM10) Logamax plus GB162 applications manual | 03.2013 Technical specifi cations are subject to change without prior notice...
  • Page 24 Communication between MCM10 and a Heating Controller (e.g. RC35) Off: No heat demand, boiler on stand by On: Heat demand, boiler in operation Fig.18 MCM10 LED functions Logamax plus GB162 applications manual | 03.2013 Technical specifi cations are subject to change without prior notice...
  • Page 25 Boiler 1 Boiler 2 Boiler 3 Boiler 4 between this between this MCM10 and MCM10 and following previous MCM10 MCM10 Fig.19 MCM10 connection diagram Logamax plus GB162 applications manual | 03.2013 Technical specifi cations are subject to change without prior notice...
  • Page 26 2x MM10 up to 16 Buderus GB162 3 mixed and 1 unmixed heating zones 4x MCM10 WM10 3x MM10 RC35 Fig.20 MCM10 Configuration Options Logamax plus GB162 applications manual | 03.2013 Technical specifi cations are subject to change without prior notice...

  • Page 27: Sample Applications

    3.5 System 5: Multi boiler system with staging control and outdoor reset 3.6 System 6: Multi-boiler Cascade I 3.6 System 7: Multi-boiler Cascade II Logamax plus GB162 applications manual | 03.2013 Technical specifi cations are subject to change without prior notice...

  • Page 28: Legend

    It is the installer’s responsibility to know national and local code and install safety devices as required. Install and size peripheral devices such as air purge, expansion vessel, feeder valve, mud separator, shutoff valves, etc. per best installation practices. Contact Buderus with installation related questions. Logamax plus GB162 applications manual | 03.2013...

  • Page 29: System 1: Single Boiler With Outdoor Reset, Multiple Heating Zones With Zone Pumps And Dhw

    • DHW tank • Multi zone pump relay panel with/without DHW priority • PS DHW tank loading circulator • Zone thermostat per room/zone Logamax plus GB162 applications manual | 03.2013 Technical specifi cations are subject to change without prior notice...
  • Page 30 3 0 | GB162 Applications Manual Piping Diagram - System 1 Logamax plus GB162 applications manual | 03.2013 Technical specifi cations are subject to change without prior notice...
  • Page 31 | 31 GB162 Applications Manual Wiring Diagram - System 1 Logamax plus GB162 applications manual | 03.2013 Technical specifi cations are subject to change without prior notice...
  • Page 32 See also chapter 2.3 for additional information on the AM10. Fig.24 Heating curve upper value (14 °F) Fig.25 Heating curve lower value (68 °F) Fig.26 Warm weather shut down temperature Logamax plus GB162 applications manual | 03.2013 Technical specifi cations are subject to change without prior notice...

  • Page 33: System 2: Single Boiler With Outdoor Reset, Multiple Heating Zones With Zone Valves And Dhw

    ECM pumps (low energy or constant pressure pumps) are recommended for constant flow rate and additional energy savings. • Zone valves • Room thermostats Logamax plus GB162 applications manual | 03.2013 Technical specifi cations are subject to change without prior notice...
  • Page 34 3 4 | GB162 Applications Manual Piping Diagram - System 2 Logamax plus GB162 applications manual | 03.2013 Technical specifi cations are subject to change without prior notice...
  • Page 35 | 35 GB162 Applications Manual Wiring Diagram - System 2 Logamax plus GB162 applications manual | 03.2013 Technical specifi cations are subject to change without prior notice...
  • Page 36 Fig. 30 Heating curve upper value (14 °F) Fig. 31 Heating curve lower value (68 °F) Fig. 32 Warm weather shut down temperature Logamax plus GB162 applications manual | 03.2013 Technical specifi cations are subject to change without prior notice...

  • Page 37: System 3: Single Boiler With One Heating Zone, Outdoor Reset With Room Feedback And Dhw Priority

    (see system 4) The low loss header decouples the boiler loop from the system loop. DHW recirculation pump functionality built in with separate timer program. Logamax plus GB162 applications manual | 03.2013 Technical specifi cations are subject to change without prior notice...
  • Page 38 3 8 | GB162 Applications Manual Piping Diagram - System 3 Logamax plus GB162 applications manual | 03.2013 Technical specifi cations are subject to change without prior notice...
  • Page 39 | 39 GB162 Applications Manual Wiring Diagram - System 3 Logamax plus GB162 applications manual | 03.2013 Technical specifi cations are subject to change without prior notice...
  • Page 40 Installation and Service instructions. settings See also chapter 2.4 for additional information on the RC35. diagnosis servicing Fig.34 RC35 service menu view Logamax plus GB162 applications manual | 03.2013 Technical specifi cations are subject to change without prior notice...

  • Page 41: System 4: Single Boiler With Rc35, One Heating Zone, & Solar Thermal Dhw

    DHW generation by 25% and fossil super insulated structures, or rooms with significant solar gain, auxiliary heat (wood stove), or similar. Logamax plus GB162 applications manual | 03.2013 Technical specifi cations are subject to change without prior notice...
  • Page 42 4 2 | GB162 Applications Manual Piping Diagram - System 4 Logamax plus GB162 applications manual | 03.2013 Technical specifi cations are subject to change without prior notice...
  • Page 43 | 43 GB162 Applications Manual Wiring Diagram - System 4 Logamax plus GB162 applications manual | 03.2013 Technical specifi cations are subject to change without prior notice...
  • Page 44 Set up the remainder of the parameters according to the servicing Installation and Service instructions. See also chapter 2.4 for additional information on the RC35. Fig.36 RC35 service menu view Logamax plus GB162 applications manual | 03.2013 Technical specifi cations are subject to change without prior notice...

  • Page 45: System 5: Multi Boiler System With Staging Control And Outdoor Reset

    The low loss header decouples the boiler loop from the system loop with the same boiler flow rate independently of the number of zones calling. * GB162/100 Logamax plus GB162 applications manual | 03.2013 Technical specifi cations are subject to change without prior notice...
  • Page 46 NOTE: Up to 4 boilers can be cascaded using this setup; options include back to back (TR rack) or in line (TL rack), or wall mount. Only 2 boilers are shown for clarity. For larger cascades please see systems 6 and 7. Logamax plus GB162 applications manual | 03.2013 Technical specifi cations are subject to change without prior notice...
  • Page 47 Wiring Diagram - System 5 NOTE: Up to 4 boilers can be cascaded using this setup. Only 2 boilers are shown for clarity. Logamax plus GB162 applications manual | 03.2013 Technical specifi cations are subject to change without prior notice...
  • Page 48 Fig.39 Heating curve upper value (14 °F) For additional information consult the MCM10 installation manual. Fig.40 Heating curve lower value (68 °F) Fig.41 Warm weather shut down temperature Logamax plus GB162 applications manual | 03.2013 Technical specifi cations are subject to change without prior notice...

  • Page 49: System 6: Multi-Boiler Cascade I

    - 0-10V input for supply water temperature control - Dry contact input - RC35 outdoor reset control with room influence Buderus offers convenient racking systems and low loss headers for quick and easy installation. In detail: The cascade controller fires, runs, and modulates the boilers based on heat demand, plus rotates the boilers to achieve equal run time.
  • Page 50 Piping Diagram - System 6 NOTE: Up to 16 boilers can be cascaded using this setup. Only 5 boilers are shown for clarity. Logamax plus GB162 applications manual | 03.2013 Technical specifi cations are subject to change without prior notice...
  • Page 51 NOTE: Up to 16 boilers can be cascaded using this setup. Only 5 boilers are shown for clarity. When using the RC35 and WM10 versus the AM10, note the different sensor locations for accurate operation. Logamax plus GB162 applications manual | 03.2013 Technical specifi cations are subject to change without prior notice...
  • Page 52 (see Systems 1 and 2), connect to pins 11/12. Connect the outdoor sensor to pins 3/4. For additional information consult the MCM10 installation manual. Logamax plus GB162 applications manual | 03.2013 Technical specifi cations are subject to change without prior notice...

  • Page 53: System 7: Multi-Boiler Cascade

    - 0-10V input for supply water temperature control - Dry contact input - RC35 outdoor reset control with room influence Buderus offers convenient racking systems and low loss headers for quick and easy installation. In detail: The cascade controller fires, runs, and modulates the boilers based on heat demand, plus rotates the boilers to achieve equal run time.
  • Page 54 Piping Diagram - System 7 NOTE: Up to 16 boilers can be cascaded using this setup. Only 5 boilers are shown for clarity. Logamax plus GB162 applications manual | 03.2013 Technical specifi cations are subject to change without prior notice...
  • Page 55 System supply sensor (FV) connects to 1/2 NOTE: Up to 16 boilers can be cascaded using this setup. Only 5 boilers are shown for clarity. Logamax plus GB162 applications manual | 03.2013 Technical specifi cations are subject to change without prior notice...
  • Page 56 (see Systems 1 and 2), connect to pins 11/12. Connect the outdoor sensor to pins 3/4. For additional information consult the MCM10 installation manual. Logamax plus GB162 applications manual | 03.2013 Technical specifi cations are subject to change without prior notice...

  • Page 57: Appendix

    • Appendix 3 - Adding DHW priority to System 1 • Appendix 4 - Adding DHW priority to a multi- boiler cascade Logamax plus GB162 applications manual | 03.2013 Technical specifi cations are subject to change without prior notice...

  • Page 58: Appendix 1 - Single Boiler With 0-10V Heat Demand Input

    20% and the control signal is 1 Volt (= 10%), the performance value setting is lower than the low load. In this case the boilers may be cycling on and off. Logamax plus GB162 applications manual | 03.2013 Technical specifi cations are subject to change without prior notice...
  • Page 59 | 59 GB162 Applications Manual Appendix 1 - Wiring diagram Logamax plus GB162 applications manual | 03.2013 Technical specifi cations are subject to change without prior notice...

  • Page 60: Appendix 2 - Multi-Boiler Cascade With 0-10V Heat Demand Input

    Required components: • GB162 boilers • MCM10 module Note: Do not use the AM10 in this configuration Logamax plus GB162 applications manual | 03.2013 Technical specifi cations are subject to change without prior notice...
  • Page 61 | 61 GB162 Applications Manual Appendix 2 - Wiring diagram Only with Set Point Acc Supply Temperature Logamax plus GB162 applications manual | 03.2013 Technical specifi cations are subject to change without prior notice...

  • Page 62: Appendix 3 - Adding Dhw Priority To System

    Required components: • GB162 boilers • Indirect fi red DHW tank • Zone Pump Relay Panel with DHW priority • RIB relay Logamax plus GB162 applications manual | 03.2013 Technical specifi cations are subject to change without prior notice...
  • Page 63 | 63 GB162 Applications Manual Appendix 3 - Piping and wiring diagram Logamax plus GB162 applications manual | 03.2013 Technical specifi cations are subject to change without prior notice...

  • Page 64: Appendix 4 - Adding Dhw Priority To A Multi-Boiler Cascade

    Install high limits in the zones to be protected from overheating. Install thermostatic mixing valves in the zones to be protected from overheating. Logamax plus GB162 applications manual | 03.2013 Technical specifi cations are subject to change without prior notice...
  • Page 65 | 65 GB162 Applications Manual Appendix 4 - Piping and wiring diagram OTE: Other components not shown for clarity. Logamax plus GB162 applications manual | 03.2013 Technical specifi cations are subject to change without prior notice...
  • Page 66 6 6 | GB162 Applications Manual Logamax plus GB162 applications manual | 03.2013 Technical specifi cations are subject to change without prior notice...
  • Page 67 | 67 GB162 Applications Manual Logamax plus GB162 applications manual | 03.2013 Technical specifi cations are subject to change without prior notice...
  • Page 68 Bosch Thermotechnology Corp. 50 Wentworth Avenue Londonderry, NH 03053 Tel.: 603-552-1100 Fax: 603-965-7581 www.buderus.us Products manufactured by: Bosch Thermotechnik GmbH Sophienstrasse 30-32 D-35576 Wetzlar www.buderus.de Bosch Thermotechnology Corp. reserves the right to make changes without notice due to continuing engineering...

Table of Contents