Buderus Logamatic 2107 Installation And Service Instructions Manual
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Buderus Logamatic 2107 Installation And Service Instructions Manual

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Installation and Service
Instructions
AUTOMATIC
11.15am 71°F
180
Boiler Controls
Logamatic 2107
For the installing contractor
Please read carefully prior
to commissioning or ser-
vicing.

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June 7, 2025

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Summary of Contents for Buderus Logamatic 2107

  • Page 1 Installation and Service Instructions AUTOMATIC 11.15am 71°F Boiler Controls For the installing contractor Logamatic 2107 Please read carefully prior to commissioning or ser- vicing.
  • Page 2 Change to SETBACK if no room sensor is being used or RMSETBACK if a room sensor is present Refer to page 10 for additional details. Logamatic 2107 controls - We reserve the right to make any changes due to technical modifications.

  • Page 3: Table Of Contents

    ..... . . 4 5 Logamatic 2107 controls - We reserve the right to make any changes due to technical modifications.
  • Page 4 ........... . 6 9 Logamatic 2107 controls - We reserve the right to make any changes due to technical modifications.

  • Page 5: Safety Instructions And User Notes

    The pan must not restrict combustion air flow. CAUTION: Personal injury and property damage. Appliance must be installed vertically. Logamatic 2107 controls - We reserve the right to make any changes due to technical modifications.

  • Page 6: Please Observe These Safety Instructions

    RISK TO LIFE z In an emergency, switch OFF the emergency shutoff switch outside the WARNING! boiler room. Logamatic 2107 controls - We reserve the right to make any changes due to technical modifications.

  • Page 7: Setting Parameters And Display Data For The Logamatic 2107

    MAX TEMP Maximum heating circuit temperature REMOTE 2 Remote control ON/OFF DIFF T Room temperature hook-up OA SETBACK Type of setback OFFSET Room temperature offset Logamatic 2107 controls - We reserve the right to make any changes due to technical modifications.
  • Page 8 6 Only if FM 241 module is installed and if heating circuit 2 is selected as an "UND-FLOOR" or "RADIATOR" heating system. 7 Only if FM 244 module is installed. Logamatic 2107 controls - We reserve the right to make any changes due to technical modifications.

  • Page 9: Installation

    G234: The tridicator assembly should be moved to the supply piping and replaced with the chrome plated Logamatic well. The sensor bundle must be inserted into this well. Logamatic 2107 controls - We reserve the right to make any changes due to technical modifications.
  • Page 10 Tilt the display to the desired position. z Replace the top housing of the controls and fasten the two screws. The control is ready to be placed into operation. Logamatic 2107 controls - We reserve the right to make any changes due to technical modifications.

  • Page 11: Logamatic 2107 Controls

    Item 5: ON/OFF switch Item 6: Keys for basic functions Item 7: Dial Item 8: Keys for extended functions Item 9: Display Item 10: Flap Logamatic 2107 controls - We reserve the right to make any changes due to technical modifications.
  • Page 12 Item 1: Automatic mode following a program Item 2: Normal heating mode (day mode) Item 3: Flue gas test (for measuring flue gases) Item 4: Setback heating mode (night mode) Logamatic 2107 controls - We reserve the right to make any changes due to technical modifications.
  • Page 13 "Display" key – Select the standard display This keypad is used, for example, to enter the day, set the time, select temperature values, etc. Logamatic 2107 controls - We reserve the right to make any changes due to technical modifications.

  • Page 14: Checking The Manual Reset High Limit (Stb)

    Hold down the "Display" key and turn the dial, until "BURNER ON" appears in the display. The burner starts running. BURNER Release the "Display" key. °F Logamatic 2107 controls - We reserve the right to make any changes due to technical modifications.
  • Page 15 (Fig. 6). 1...7 Zeit Temp PROG Urlaub Auswahl So/Wi Anzeige Install Zurück Fig. 6 Remove the STB cover. Item 1: STB cover. Logamatic 2107 controls - We reserve the right to make any changes due to technical modifications.

  • Page 16: Using The Service Level

    The service level is now activated. USER NOTE The unit automatically returns to the standard display if no settings are made within 5 minutes. Logamatic 2107 controls - We reserve the right to make any changes due to technical modifications.

  • Page 17: Calling Up The Menu

    REMOTE Press the "ENTER" key to return to the higher-level menu. CIRCUIT 1 PERIM HTG Press the "AUT" key to exit the service level. Logamatic 2107 controls - We reserve the right to make any changes due to technical modifications.

  • Page 18: Modifying Settings

    Return to the standard display Press "ENTER". The unit automatically returns to the standard display if no key is pressed within 5 minutes. Logamatic 2107 controls - We reserve the right to make any changes due to technical modifications.

  • Page 19: General Data

    5 second pause, then the mixing valves are set to "OPEN" for 3 minutes. All pumps then return to normal operation. Logamatic 2107 controls - We reserve the right to make any changes due to technical modifications.

  • Page 20: System Frost Protection

    The setting applies to all heating circuits. Input range Factory setting System frost protection -4°F – 50°F (-20°C – 10°C) 41°F (5°C) Logamatic 2107 controls - We reserve the right to make any changes due to technical modifications.

  • Page 21: Type Of Building

    Note: In areas where rapid changes in outdoor temperature occur, choose Building Response 1. Logamatic 2107 controls - We reserve the right to make any changes due to technical modifications.
  • Page 22 Release "Display" to store your input. Press "ENTER" to return to the next higher level. Input range Factory setting 1 (low) Building response 2 (medium) 3 (high) Logamatic 2107 controls - We reserve the right to make any changes due to technical modifications.

  • Page 23: Setting The Burner Type

    Press "ENTER" to return to the next higher level. Input range Factory setting Burner system without burner module FM 242 – 1-stage 1-stage/2-stage/modulating 2-stage Burner system with burner module FM 242 Logamatic 2107 controls - We reserve the right to make any changes due to technical modifications.

  • Page 24: Minimum Modulating Output Of The Modulating Burner

    Release "Display" to store your input. Press "ENTER" to return to the next higher level. Input range Factory setting 10 %–60 % 30 % minimum modulation output Logamatic 2107 controls - We reserve the right to make any changes due to technical modifications.

  • Page 25: Operating Time Of The Modulating Burner Actuator

    Press "ENTER" to return to the next higher level. Input range Factory setting Operating time of the actuator 5 – 60 seconds 12 seconds Logamatic 2107 controls - We reserve the right to make any changes due to technical modifications.

  • Page 26: Pump Logic

    Press "ENTER" to return to the next higher level. Input range Factory setting Pump logic for 104°F (40°C) 1-stage 60°F – 140°F 113°F (45°C) 2-stage (15°C – 60°C) 122°F (50°C) Modulating burners Logamatic 2107 controls - We reserve the right to make any changes due to technical modifications.

  • Page 27: Maximum Boiler Temperature

    Input range Factory setting 158°F – 210°F Maximum OFF temperature 176°F (80°C) (70°C – 99°C) Logamatic 2107 controls - We reserve the right to make any changes due to technical modifications.

  • Page 28: Language Selection

    "AMERICAN". Now hold down the "Display" key and turn the dial to set the language. Release the "Display" key to store the set language. Logamatic 2107 controls - We reserve the right to make any changes due to technical modifications.

  • Page 29: Heating Circuit Data

    If the right heating system is selected, the other heating circuit parameters are preset. They must still be verified, however. Further information on this can be found on the next page. Logamatic 2107 controls - We reserve the right to make any changes due to technical modifications.
  • Page 30 If there is only one heating circuit with mixing valve present (HK2), circuit 1 must be set to "NO SYSTEM". If the "NO SYSTEM" setting is used, all of the following settings are hidden for this circuit. Logamatic 2107 controls - We reserve the right to make any changes due to technical modifications.
  • Page 31 FLOOR HTG Input range Factory setting NO SYSTEM Heating circuit 1 PERIM HTG PERIM HTG NO SYSTEM Heating circuit 2 FLOOR HTG FLOOR HTG Logamatic 2107 controls - We reserve the right to make any changes due to technical modifications.

  • Page 32: Reference Design Temperature

    (+20) (+15) (+10) (+5) (±0) (-5) (-10) (-15) The factory setting is: Outdoor temperature [°F(°C)] With PERIM HTG: 167°F (75°C) Fig. 9 Determining the heating With FLOOR HTG: 113°F (45°C) curve Logamatic 2107 controls - We reserve the right to make any changes due to technical modifications.
  • Page 33 Reference design temperature for PERIM HTG 86 – 194°F (30 – 90°C) 167°F (75°C) Reference design temperature for FLOOR HTG 86 – 140°F (30 – 60°C) 113°F (45°C) Logamatic 2107 controls - We reserve the right to make any changes due to technical modifications.

  • Page 34: Dhw Priority

    (in this case "OFF"). DHW PRIOR Release "Display" to store your input. Press "ENTER" to return to the next higher level. Input range Factory setting DHW priority Logamatic 2107 controls - We reserve the right to make any changes due to technical modifications.

  • Page 35: Maximum Heating Circuit Temperature

    68 – 140°F (20°C – 60°C) 122°F (50°C) FLOOR HTG* * This function does not replace the safety thermostat for switching of the pump for radiant heating circuit. Logamatic 2107 controls - We reserve the right to make any changes due to technical modifications.

  • Page 36: Remote Control On/Off

    Release "Display" to store your input. Press "ENTER" to return to the next higher level. Further information on this can be found on the next page. Logamatic 2107 controls - We reserve the right to make any changes due to technical modifications.
  • Page 37 "REMOTE" appears on the display if the remote control is active. All settings can then only be made via the remote control. Input range Factory setting Remote control Logamatic 2107 controls - We reserve the right to make any changes due to technical modifications.

  • Page 38: Maximum Room Temperature Compensation

    This setting is generally recommended for FLOOR HTG systems. The factory setting is: With FLOOR HTG system: 6°F (3°C) Further information on this can be found on the next page. Logamatic 2107 controls - We reserve the right to make any changes due to technical modifications.
  • Page 39 Release "Display" to store your input. Press "ENTER" to return to the next higher level. Input range Factory setting Differential temperature 6°F (3°C) 2 – 18°F (1°C – 10°C) Logamatic 2107 controls - We reserve the right to make any changes due to technical modifications.

  • Page 40: Setback Mode Selection

    Heating circuit with constant circulation zone: RMSETBACK (Requires room sensor) Heating circuit with ONlOFF thermostats: SETBACK (No room sensor present) Commercial (day use only) buildings: OASETBACK Logamatic 2107 controls - We reserve the right to make any changes due to technical modifications.
  • Page 41 Press "ENTER" to return to the next higher level. Input range Factory setting Outdoor setback Room setback Type of setback Outdoor setback Setback Boiler off Logamatic 2107 controls - We reserve the right to make any changes due to technical modifications.

  • Page 42: Room Temperature Offset

    Release "Display" to store your input. Press "ENTER" to return to the next higher level. Input range Factory setting OFFSET -9 – +9°F (-5°C – +5°C) 0°F (0°C) Logamatic 2107 controls - We reserve the right to make any changes due to technical modifications.

  • Page 43: Solar Data

    (in this case "SLRFN OFF"). SLRFN OFF Release "Display" to store your input. Press "ENTER" to return to the next higher level. Input range Factory setting SOLAR Logamatic 2107 controls - We reserve the right to make any changes due to technical modifications.

  • Page 44: Maximum Storage Tank Temperature In Solar Mode

    "MAX-SL SR" setting in order to prevent the tank scaling up. Input range Factory setting Max sol T 140 – 194°F (60°C – 90°C) 167°F (75°C) Logamatic 2107 controls - We reserve the right to make any changes due to technical modifications.

  • Page 45: Minimum Storage Tank Temperature In Solar Mode

    Release "Display" to store your input. Press "ENTER" to return to the next higher level. Input range Factory setting 86 – 130°F (30°C – 54°C) MIN SL SR Logamatic 2107 controls - We reserve the right to make any changes due to technical modifications.

  • Page 46: Dhw Production On/Off

    (in this case "OFF"). DHW PROD Release "Display" to store your input. Press "ENTER" to return to the next higher level. Input range Factory setting DHW production Logamatic 2107 controls - We reserve the right to make any changes due to technical modifications.

  • Page 47: Dhw Recirculation Pump

    The intermittent mode may be set to 1 to 6 pump starts per hour in order to minimize the operating costs of the recirculation pump. This setting saves energy while ensuring comfort. Logamatic 2107 controls - We reserve the right to make any changes due to technical modifications.
  • Page 48 (in this case "4"). RECIRCPUMP Release "Display" to store your input. Press "ENTER" to return to the next higher level. Input range Factory setting DHW recirculation pump Logamatic 2107 controls - We reserve the right to make any changes due to technical modifications.

  • Page 49: Heating Curve

    50°F (+10°C), the second at 32°F (±0°C) and the third at 14°F (-10°C). HTG CURVE °F HTG CURVE °F HTG CURVE °F Release the "Display" key to return to the next higher level. Logamatic 2107 controls - We reserve the right to make any changes due to technical modifications.

  • Page 50: Running The Relay Test

    Boiler system pump HK1 z Heating circuit pump HK 2 z Mix valve open/closed/OFF z Tank DHW pump z DHW recirculation pump z Solar pump Logamatic 2107 controls - We reserve the righ to make any change due to technical modifications.
  • Page 51 Press "ENTER" to return to the next higher level. Logamatic 2107 controls - We reserve the right to make any changes due to technical modifications.

  • Page 52: Performing An Lcd Test

    Hold down "Display" and turn the dial. All the numbers and symbols must appear on the display. °F°C Release the "Display" key. 1234567 Press "ENTER" to return to the next higher level. Logamatic 2107 controls - We reserve the right to make any changes due to technical modifications.

  • Page 53: Time, Correcting The Accuracy

    Release "ENTER" to store your input. Press the "Display" key to return to the next higher level. Input range Factory setting -30 seconds/day – +30 seconds/day Time Logamatic 2107 controls - We reserve the right to make any changes due to technical modifications.

  • Page 54: Reset

    No "RESET" is carried out if you release the "Display" key before all the num- bers have disappeared. Press "ENTER" to return to the next higher level. Logamatic 2107 controls - We reserve the right to make any changes due to technical modifications.

  • Page 55: Version Number

    "AMERICAN" appears as the first main menu. Turn the dial until "VERSION" and the version number (in this case "3.24") are displayed. VERSION 3.24 Logamatic 2107 controls - We reserve the right to make any changes due to technical modifications.

  • Page 56: Sensor Curves

    5 5 5 0 0 0 (1 1 1 0 0 0 ) 6 6 6 0 0 0 (1 1 1 5 5 5 ) (- ) Outdoor temperature [°F (°C)] Logamatic 2107 controls - We reserve the right to make any changes due to technical modifications.
  • Page 57 Water temperature [°F (°C)] Collector sensor (FSK) -58 (-50) 32 (0) 122 (50) 212 (100) 302 (150) 392 (200) 482 (250) Collector temperature [°F (°C)] Logamatic 2107 controls - We reserve the right to make any changes due to technical modifications.

  • Page 58: Operating Values At The Service Level/Setup Report

    Outdoor setback Room setback Setback type for heating circuit 2 Outdoor setback Setback Switch-off Further information on this can be found on the next page. Logamatic 2107 controls - We reserve the right to make any changes due to technical modifications.
  • Page 59 167°F (75°C) MIN-SL SR 86 – 130°F (30°C – 54°C)/OFF DHW PROD ON/OFF DHW recirculation pump OFF/1/2/3/4/5/6/ON Time -30 seconds/day – +30 seconds/day 0 seconds/day Logamatic 2107 controls - We reserve the right to make any changes due to technical modifications.

  • Page 60: Troubleshooting

    Check the wiring Remote control is defective available, so the ambient REMOTE2 ERROR Replace the remote control influence does not apply Connecting cable interrupted Logamatic 2107 controls - We reserve the right to make any changes due to technical modifications.
  • Page 61 Module no longer present Module is no longer being (solar card) Plug the module in again Module defective addressed Replace the module FM 244 ERROR Logamatic 2107 controls - We reserve the right to make any changes due to technical modifications.

  • Page 62: Troubleshooting "No Heat" Call

    The differential is split above & below the current target temperature. Logamatic 2107 controls - We reserve the right to make any changes due to technical modifications.
  • Page 63 11 to Hot on the burner (terminal 4 is the the burner is now low voltage between terminals 10 & 11 neutral). on the R2107 and TT (or RW) on the boiler aquastat. Logamatic 2107 controls - We reserve the right to make any changes due to technical modifications.
  • Page 64 Troubleshooting Logamatic 2107 controls - We reserve the right to make any changes due to technical modifications.

  • Page 65: Troubleshooting „Insufficent Heat" Call

    With this type of a call, you will want to increase the OFFSET setting. USE THE QUICK REFERNECE GUIDE FOR INITIAL PROGRAMMING Logamatic 2107 controls - We reserve the right to make any changes due to technical modifications.

  • Page 66: Troubleshooting Domestic Hot Water

    Check the following: 1 - bad circulator 2 - stuck flow check 3 - piping is air bound 4 - closed valve Logamatic 2107 controls - We reserve the right to make any changes due to technical modifications.

  • Page 67: Iring Diagrams

    W iring diagrams 21 Wiring diagrams Logamatic 2107 controls - We reserve the right to make any changes due to technical modifications.
  • Page 68 W iring diagrams Logamatic 2107 controls - We reserve the right to make any changes due to technical modifications.

  • Page 69: Index

    Type of setback ....4 0 Version number ....5 5 Logamatic 2107 controls - We reserve the right to make any changes due to technical modifications.
  • Page 70 Notes Logamatic 2107 controls - We reserve the right to make any changes due to technical modifications.
  • Page 71 Notes Logamatic 2107 controls - We reserve the right to make any changes due to technical modifications.
  • Page 72 U U U n n n i i i t t t e e e d d d S S S t t t a a a t t t e e e s s s a a a n n n d d d C C C a a a n n n a a a d d d a a a Bosch Thermotechnology Corp. 50 Wentworth Avenue Londonderry, NH 03053 Tel. 603-552-1100 Fax 603-965-7581 www.buderus.us U.S.A. Products manufactured by Bosch Thermotechnik GmbH Sophienstrasse 30-32 D-35576 Wetzlar www.buderus.com...

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