Buderus Logamatic 2107 Page 52 Installation And Service Instructions Manual Download | Manualshive

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14 Performing an LCD test

The LCD test is used to check whether all the figures and symbols are displayed
in full.

Carrying out an LCD test

+

Press the "Display" key and "Install" key at the same time to call up the service
level. "AMERICAN" appears as the first main menu.

Turn the dial until "LCD TEST" is shown.

+

Hold down "Display" and turn the dial. All the numbers and symbols must appear
on the display.

Release the "Display" key.

Press "ENTER" to return to the next higher level.

LCD TEST

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2

1234567

°F°C

Logamatic 2107 controls - We reserve the right to make any changes due to technical modifications.

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Performing an LCD test

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Summary of Contents for Logamatic 2107

Page 1: ...d Service Instructions 160 AUT 180 1 4 0 120 AUTOMATIC 11 15am 71 F Boiler Controls Logamatic 2107 6 720 618 142 07 2 014 US CA For the installing contractor Please read carefully prior to commissioning or ser vicing ...

Page 2: ... to o or r ry y y s s se e et t tt t ti iin n ng g gs s s m m ma a ay y y n n ne e ee e ed d d a a ad d dj jju u us s st t tm m me e en n nt t t BLDG RESP Change to 1 if typical 2x4 or 2x6 construction MAX TEMP Change to 185 190 F if high temperature baseboard is used OASETBACK Change to SETBACK if no room sensor is being used or RMSETBACK if a room sensor is present Refer to page 10 for additiona...

Page 3: ...tings 18 7 General data 19 7 1 System frost protection 20 7 2 Type of building 21 7 3 Setting the burner type 23 7 4 Minimum modulating output of the modulating burner 24 7 5 Operating time of the modulating burner actuator 25 7 6 Pump logic 26 7 7 Maximum boiler temperature 27 7 8 Language selection 28 8 Heating circuit data 29 8 1 Heating system 29 8 2 Reference design temperature 32 8 3 DHW pri...

Page 4: ... 13 Running the relay test 50 14 Performing an LCD test 52 15 Time correcting the accuracy 53 16 Reset 54 17 Version number 55 18 Sensor curves 56 19 Operating values at the service level setup report 58 20 Troubleshooting 60 20 1 Troubleshooting NO HEAT call 62 20 2 Troubleshooting INSUFFICENT HEAT call 65 20 3 Troubleshooting Domestic Hot Water 66 21 Wiring diagrams 67 22 Index 69 ...

Page 5: ... in rooms with a high moisture level e g bathrooms saunas Function To ensure that the water heater functions properly follow these installation and maintenance instructions Never close the blow off line of the T P safety valve For safety reasons water may escape during heating DANGER Electric shock Shock hazard line voltage is present Before servicing the water heater unplug power supply cord from...

Page 6: ... to opening the controls isolate the system from the mains supply via the boiler emergency shutoff switch or the heating system circuit breaker z All tasks listed in these service in structions which require the opening of the control panel must only be carried out by trained personnel NOTICE SYSTEM DAMAGE through frost z Frost protection is only active if the controls is switched ON Switch OFF th...

Page 7: ...mum modulation output2 TIME RUN2 Minimum burner run time2 PUMPLOGIC Pump logic threshold MAX TEMP Maximum boiler switch off temperature CIRCUIT 01 Heating circuit 1 installation parameters unmixed heating circuit PERIM HTG Heating system REF TEMP Design temperature REMOTE 1 Remote control ON OFF DIFF T3 Room temperature hook up3 OA SETBACK Type of setback OFFSET Room temperature offset CIRCUIT 025...

Page 8: ...URNER21 MOD22 Burner relay1 stage 2 modulation output2 HTG1 PUMP Heating circuit pump HZ1 unmixed HTG2 PUMP4 Heating circuit pump HZ2 mixed 4 MIX VALVE4 Mixer4 DHW PUMP Tank DHW pump RECIR PUMP DHW circulation pump SLR PUMP7 Solar pump7 LCD TEST LCD test TIME Time accuracy RESET Reset VERSION Version number Display 1 Only if the FM 242 module is installed and 2 stage burner is selected 2 Only if t...

Page 9: ...s into place z Fasten the control to the boiler jacket using the two screws as shown z The sensor bundle consists of one thermistor FK two capillaries and a spacer Mount the sensors per the following boiler specific instructions Use the chrome well supplied with the Logamatic z G115 G125 GB125 G215 G315 Replace brass well with chrome Lo gamatic well The sensor bundle must be fully inserted into th...

Page 10: ...ay at the rear of the boiler The rear panel jacket may be modified per local code Route the wires on top of the insulation from the back of the boiler to the back of the controls z Use the white strain relief brackets provided to lock all cables into place on the back of the control z Tilt the display to the desired position z Replace the top housing of the controls and fasten the two screws The c...

Page 11: ...Item 3 Fuse 10 Amp Item 4 Switch for Automatic mode Emergency mode 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 160 AUT 180 1 4 0 120 160 AUT 180 1 4 0 120 1 2 3 4 5 7 6 9 8 10 AUTOMATIC 11 15am 71 Logamatic 2107 controls We reserve the right to make any changes due to technical modifications 11 4 Logamatic 2107 con...

Page 12: ...functions 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 1 2 3 4 Logamatic 2107 controls We reserve the right to make any changes due to technical modifications 12 Logamatic 2107 controls 4 ...

Page 13: ... Set the time Item 4 PROG key Select program Item 5 WWSD key Item 6 Temp key Select temperature values Item 7 DHW key Enter the domestic hot water temperature Item 8 Heating circuit key Call up the heating circuits Item 9 Enter key Back to standard display Item 10 Install key Call up the service level Item 11 Display key Select the standard display 2 6 9 10 11 4 5 1 3 7 8 Logamatic 2107 controls W...

Page 14: ...ime to call up the service level AMERICAN appears as the first main menu Turn the dial until RELAY is shown Hold down the Display key and turn the dial until BURNER ON appears in the display The burner starts running Release the Display key RELAY ON BURNER F Logamatic 2107 controls We reserve the right to make any changes due to technical modifications 14 4 Checking the manual reset high limit STB...

Page 15: ...iggering the manual reset high limit Item 1 Key Item 2 Lever 1 2 Press AUT Reattach the dial and turn it to the AUT position Fig 6 Remove the STB cover Item 1 STB cover AUT 90 70 60 50 I 0 1 7 Tag Zeit Temp Urlaub Auswahl So Wi Anzeige Install Zurück PROG 1 Logamatic 2107 controls We reserve the right to make any changes due to technical modifications 15 5 Checking the manual reset high limit STB ...

Page 16: ...ol programs and can cause the system to malfunction The controls marked in grey are used for this function You will need a pointed object such as a ball point pen to press the Install button Press the Display key and Install key at the same time to call up the service level Release both keys The selected language e g AMERICAN is displayed in the first main menu The service level is now activated A...

Page 17: ... down into main menus and submenus AMERICAN You can scroll through the main menu level by turning the dial BOILER CIRCUIT 01 Press the Display key to access the submenu CIRCUIT 1 PERIM HTG REF TEMP 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 tech...

Page 18: ...utomatically returns to the standard display if no key is pressed within 5 minutes When you press the Display key in a submenu the setting parameter to be changed flashes Hold down the Display key and turn the dial at the same time to change the parameter The new value will be stored after you release the Display key Press ENTER Logamatic 2107 controls We reserve the right to make any changes due ...

Page 19: ...10 seconds every Wednesday at 12 noon to prevent pump damage This is followed by a brief 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 19 7 General data ...

Page 20: ...CAN appears as the first main menu Turn the dial until BLR TEMP is shown Press Display to call up a submenu FREEZE TEMP appears Hold down the Display key and turn the dial until the desired value appears in this case 41 F Release Display to store your input Press ENTER to return to the next higher level 41 FREEZE TEMP F 43 FREEZE TEMP F USER NOTE The value of the OASETBACK setback type is also lim...

Page 21: ...of insulation e g 2x4 wood frame or prefabricated construction with typic al insulation Building response 2 medium Buildings with medium heat storage capacity and high levels of insulation e g 2x6 wood frame or cinder block construction with above average insulation Building response 3 high Massive buildings with high heat storage capacity and high levels of insulation e g poured concrete heavy br...

Page 22: ...EMP appears Turn the dial until BLDG RESP is shown Hold down the Display key and turn the dial until the required value appears in this case 1 Release Display to store your input Press ENTER to return to the next higher level 2 BLDG RESP 1 BLDG RESP Input range Factory setting Building response 1 low 2 medium 3 high 2 Logamatic 2107 controls We reserve the right to make any changes due to technica...

Page 23: ...ICAN appears as the first main menu Turn the dial until BLR TEMP is shown Press Display to call up a submenu FREEZE TEMP appears Turn the dial until 2 STAGE is displayed Hold down the Display key and turn the dial until the required value appears in this case MODULATE is displayed Release Display to store your input Press ENTER to return to the next higher level 2 STAGE MODULATE Input range Factor...

Page 24: ...y at the same time to call up the service level AMERICAN appears as the first main menu Turn the dial until BLR TEMP is shown Press Display to call up a submenu FREEZE TEMP appears Turn the dial until MIN MOD is shown Hold down the Display key and turn the dial until the required value appears in this case 40 Release Display to store your input Press ENTER to return to the next higher level 30 MIN...

Page 25: ...level AMERICAN appears as the first main menu Turn the dial until BLR TEMP is shown Press Display to call up a submenu FREEZE TEMP appears Turn the dial until MOD TIME is shown Hold down the Display key and turn the dial until the required value appears in this case 15 Release Display to store your input Press ENTER to return to the next higher level 12 MOD TIME 15 MOD TIME Input range Factory set...

Page 26: ...mary heat exchanger Changing the pumplogic temperature Press the Display key and Install key at the same time to call up the service level AMERICAN appears as the first main menu Turn the dial until BLR TEMP is shown Press Display to call up a submenu FREEZE TEMP appears Turn the dial until PUMPLOGIC is shown Hold down the Display key and turn the dial until the required value appears in this case...

Page 27: ...P is shown Press Display to call up a submenu FREEZE TEMP appears Turn the dial until MAXTEMP 1 is shown Hold down Display and turn the dial until the required value appears in this case 167 F 75 C Release Display to store your input Press ENTER to return to the next higher level 176 MAXTEMP 1 F 167 MAXTEMP 1 F USER NOTE Ensure that the boiler water aquastat dial is set above the maximum boiler te...

Page 28: ...ge e g AMERICAN is displayed in the first main menu The factory setting for the language is AMERICAN Now hold down the Display key and turn the dial to set the language Release the Display key to store the set language AMERICAN Logamatic 2107 controls We reserve the right to make any changes due to technical modifications 28 5 4 General data 7 ...

Page 29: ...it 02 mixed heating circuit no heating circuit perimeter heating radiant floor heating The factory setting is 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 Circuit 01 Perimeter heating Circuit 02 Radiant floor heating Logamatic 2107 controls We reserve the right t...

Page 30: ... Hold down the Display key and turn the dial until the required value appears in this case NO SYSTEM is displayed Press ENTER to return to the next higher level USER NOTE 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 CIRCUIT 01 PERIM HTG NO SYSTEM Logam...

Page 31: ...played CIRCUIT 02 setting heating circuit with mixing valve Press Display to call up a submenu RADIATOR appears CIRCUIT 02 FLOOR HTG Input range Factory setting Heating circuit 1 NO SYSTEM PERIM HTG PERIM HTG Heating circuit 2 NO SYSTEM FLOOR HTG FLOOR HTG Logamatic 2107 controls We reserve the right to make any changes due to technical modifications 31 8 Heating circuit data ...

Page 32: ...le Fig 8 When changing the reference design temperature the gradient of the heating curve is adjusted Example Fig 9 Design temperature 140 F 60 C for 5 F 15 C outdoor temperature A boiler temperature of 140 F 60 C is achieved by setting the reference design temperature to 133 F 56 C at an outdoor temperature of 14 F 10 C The reference design temperature can be set from 86 to 194 F 30 to 90 C Furth...

Page 33: ...MP is shown Hold down the Display key and turn the dial until the required value appears in this case 133 F 56 C Release Display to store your input Press ENTER to return to the next higher level 167 REF TEMP F 133 REF TEMP F Input range Factory setting 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 Loga...

Page 34: ... key and Install key at the same time to call up the service level AMERICAN appears as the first main menu Turn the dial until CIRCUIT 02 is displayed Press Display to call up a submenu PERIM HTG or FLOOR HTG appears Turn the dial until DHW PRIOR is shown Hold down the Display key and turn the dial until the required value appears in this case OFF Release Display to store your input Press ENTER to...

Page 35: ...Display to call up a submenu PERIM HTG or FLOOR HTG appears Turn the dial until MAX TEMP is shown Hold down the Display key and turn the dial until the required value appears in this case 140 F Release Display to store your input Press ENTER to return to the next higher level 194 MAX TEMP F 140 MAX TEMP F Input range Factory setting Maximum heating circuit temperature for PERIM HTG 68 194 F 20 C 9...

Page 36: ...E Faulty communication is indicated by the LEDs flashing on the remote control Press the Display key and Install key at the same time to call up the service level AMERICAN appears as the first main menu Turn the dial until HEAT CIRC 1 or HEAT CIRC 2 is displayed Press Display to call up a submenu RADIATOR or UND FLOOR appears Turn the dial until REMOTE 1 for heating circuit 1 or REMOTE 2 for heati...

Page 37: ...l The AUT Day mode and Night mode keys on the controls also are disabled for this heating circuit with remote control If you press the Temp AUT Day mode or Night mode key REMOTE appears on the display if the remote control is active Input range Factory setting Remote control OFF ON OFF Logamatic 2107 controls We reserve the right to make any changes due to technical modifications 37 8 Heating circ...

Page 38: ...within which deviations from the room setpoint value may be corrected Influencing factors such as open windows or additional heat sources e g wood burning stove open fireplace are thus eliminated in the area where the remote control is installed If other rooms are supplied with heat via this heating circuit then the aforementioned influencing factors can cause these near by rooms to be supplied wi...

Page 39: ...or FLOOR HTG appears Turn the dial until ROOM COMP is shown Hold down the Display key and turn the dial until the desired value appears in this case OFF Release Display to store your input Press ENTER to return to the next higher level 6 ROOM COMP F OFF ROOM COMP Input range Factory setting Differential temperature OFF 2 18 F 1 C 10 C 6 F 3 C Logamatic 2107 controls We reserve the right to make an...

Page 40: ...de is generally used when no room sensors are present and individual zones are controlled by conventional thermostats 3 Room Setback RMSETBACK This setback mode should only be selected when a room sensor is installed and activated The system operates to maintain the desired night time temperature as specified on the room sensor The circulators will operate continuously when the outdoor temperature...

Page 41: ...l until OASETBACK is displayed Hold down the Display key and turn the dial until the required value appears in this case OASETBACK Release Display to store your input Press ENTER to return to the next higher level OASETBACK RMSETBACK Input range Factory setting Type of setback Outdoor setback Room setback Setback Boiler off Outdoor setback Logamatic 2107 controls We reserve the right to make any c...

Page 42: ...lel shift in the heating curve The factory setting is Matching temperature values Offset 0 F 0 C for example Displayed room temperature 72 F 22 C Measured room temperature 75 F 24 C Offset 3 F 2 C Press the Display key and Install key at the same time to call up the service level AMERICAN appears as the first main menu Turn the dial until CIRCUIT 01 or CIRCUIT 02 is displayed Press Display to call...

Page 43: ...nt it being reheated unnecessarily Switching off the solar function Press the Display key and Install key at the same time to call up the service level AMERICAN appears as the first main menu Turn the dial until the SOLAR main menu appears Press Display to call up a submenu SOLAR ON appears Hold down the Display key and turn the dial until the required value appears in this case SLRFN OFF Release ...

Page 44: ...old water Press the Display key and Install key at the same time to call up the service level AMERICAN appears as the first main menu Turn the dial until the SOLAR main menu appears Press Display to call up a submenu SOLAR ON appears Turn the dial until MAX SL SR appears Hold down the Display key and turn the dial until the required value appears in this case 194 F Release Display to store your in...

Page 45: ...urther than MIN SL SR The lowering function is deactivated in the OFF position factory default Press the Display key and Install key at the same time to call up the service level AMERICAN appears as the first main menu Turn the dial until the SOLAR main menu appears Press Display to call up a submenu SLRFN ON appears Turn the dial until MIN SL SR appears Hold down the Display key and turn the dial...

Page 46: ...l heating mode is resumed at the end of the DHW heating cycle A recirculation pump if installed may be controlled if the DHW heating is activated Switching off the DHW heating Press the Display key and Install key at the same time to call up the service level AMERICAN appears as the first main menu Turn the dial until DHW PROD is shown Hold down the Display key and turn the dial until the required...

Page 47: ...continuously in the ON position The factory default is 2 i e 2 pump runs per hour running for 3 minutes each time Fig 10 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 Fig 10 Illustration of the DHW recirculation pump running time with factory setting 2 3 3 minutes O...

Page 48: ...ayed Hold down the Display key and turn the dial anti clockwise until the required value appears in this case 4 Release Display to store your input Press ENTER to return to the next higher level 2 RECIRCPUMP 4 RECIRCPUMP Input range Factory setting DHW recirculation pump OFF 1 2 3 4 5 6 ON 2 Logamatic 2107 controls We reserve the right to make any changes due to technical modifications 48 5 4 11 D...

Page 49: ...rature hook up is activated Displaying the heating curve Fig 11 Heating curve test 167 75 144 62 113 45 50 10 32 0 14 10 Outdoor temperature in F C DHW temperature in F C Heating curve Press the Display key and Install key at the same time to call up the service level AMERICAN appears as the first main menu Turn the dial until HTG CURVE 01 for heating circuit 1 or HTG CURVE 2 for heating circuit 2...

Page 50: ...Heating circuit pump HK 2 z Mix valve open closed OFF z Tank DHW pump z DHW recirculation pump z Solar pump CAUTION SYSTEM DAMAGE due to controller functions being deactivated for the duration of the relay test The heat supply to the system is not guaranteed so it is essential to press the ENTER key at the end of the relay test to exit the relay test function and thus avoid damaging the system Log...

Page 51: ...s Display to call up a submenu BURNER appears Hold down the Display key and turn the dial until BURNER ON appears in the display Release the Display key The burner starts up If the burner is working correctly and the operating hours signal has been returned by the burner an h appears in the display Turn the dial to display all the relay functions in succession Press ENTER to return to the next hig...

Page 52: ...e service level AMERICAN appears as the first main menu Turn the dial until LCD TEST is shown Hold down Display and turn the dial All the numbers and symbols must appear on the display Release the Display key Press ENTER to return to the next higher level LCD TEST 1 2 1234567 F C Logamatic 2107 controls We reserve the right to make any changes due to technical modifications 52 5 4 14 Performing an...

Page 53: ...enu Turn the dial until TIME is shown Hold down Display and turn the dial until the identified deviation appears in the display e g if it is 10 s day fast then set to 10 s day Release ENTER to store your input Press the Display key to return to the next higher level 0 TIME 10 TIME Input range Factory setting Time 30 seconds day 30 seconds day 0 Logamatic 2107 controls We reserve the right to make ...

Page 54: ...Turn the dial until RESET and 7 eights are displayed Hold down the Display key until all the numbers in the display have disappeared Release the Display key The preset factory settings are now restored The numbers appear in the display once more 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 888 RESET 8...

Page 55: ...about upgrades to the controls Displaying the version number Press the Display key and Install key at the same time to call up the service level 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 55 17 Version number ...

Page 56: ...depict mean values and are subject to tolerances WARNING RISK OF LIFE from electric shock z Disconnect the system from the power supply before opening the cover of the controls 5 5 5 1 1 15 5 5 1 1 14 4 4 1 1 10 0 0 2 2 23 3 3 5 5 5 3 3 32 2 2 0 0 0 4 4 41 1 1 5 5 5 5 5 50 0 0 1 1 10 0 0 6 6 60 0 0 1 1 15 5 5 Outdoor temperature sensor FA Resistance k Outdoor temperature F C Logamatic 2107 control...

Page 57: ...r water tank FSS temperature sensors Water temperature F C Resistance k Collector sensor FSK Collector temperature F C Resistance k 58 50 32 0 122 50 212 100 302 150 392 200 482 250 Logamatic 2107 controls We reserve the right to make any changes due to technical modifications 57 18 Sensor curves ...

Page 58: ...emperature PERIM HTG 1 or 2 86 194 F 30 C 90 C 167 F 75 C Reference temperature FLOOR HTG 2 only 86 140 F 30 C 60 C 113 F 45 C Remote control for heating circuit 1 OFF ON OFF Remote control for heating circuit 2 OFF ON OFF Offset circuit 1 OFF 2 18 F 1 10 C 6 F 3 C Offset circuit 2 OFF 2 18 F 1 10 C 6 F 3 C Setback type for heating circuit 1 Outdoor setback Room setback Setback Switch off Outdoor ...

Page 59: ...r heating circuit 2 FLOOR HTG 68 194 F 20 C 90 C FLOOR HTG 113 F 45 C Solar function ON OFF ON MAX SL SR 140 194 F 60 C 90 C 167 F 75 C MIN SL SR 86 130 F 30 C 54 C OFF OFF DHW PROD ON OFF ON DHW recirculation pump OFF 1 2 3 4 5 6 ON 2 Time 30 seconds day 30 seconds day 0 seconds day Input range Factory setting Setting Logamatic 2107 controls We reserve the right to make any changes due to technic...

Page 60: ...ble interrupted Solar module FM 244 defective Solar pump is switched off Check the sensor connection Replace the sensor Replace the module Heating error HEATING ERROR Boiler water thermostat set too low Manual reset high limit STB tripped No fuel Sensor not arranged correctly No boiler protection Boiler stays cold Set boiler water thermostat to AUT Manual reset high limit STB Check the fuel Check ...

Page 61: ...module FM 242 error burner card FM 242 ERROR Module no longer present Module defective Module is no longer being addressed Log the module off Plug the module in again Replace the module FM 244 error solar card FM 244 ERROR Module no longer present Module defective Module is no longer being addressed Log the module off Plug the module in again Replace the module Fault Possible cause of the fault Ef...

Page 62: ...erential is split above below the current target temperature Example Outdoor temperature at 32 F based on heating curve the water temperature required is 140 F with a 26 F burner differential The differential 26 F is split 13 F above 13 F below the target temperature 140 F target 13 F 153 high limit 140 F target 13 F 127 low limit This 127 F to 153 F becomes the range of temperature that the boile...

Page 63: ... is the neutral Gas burners remove factory installed jumper between terminals 10 12 The contacts between terminals 10 11 are now dry no voltage present and switching to the burner is now low voltage between terminals 10 11 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 63 20 Troubleshooting ...

Page 64: ...Logamatic 2107 controls We reserve the right to make any changes due to technical modifications 64 5 4 20 Troubleshooting ...

Page 65: ... that they can never get the house up to temperature adjust the REF temperature up A rule of thumb would be for every 1 degree you want to raise the room temperature increase the REF temp by 2 5 degrees For example Customer says they can t get the house above 65 F We need to increase the room temperature by 5 F 5 x 2 5 12 5 You would increase the REF temperature by 12 or 13 degrees The default set...

Page 66: ... does not sense a rise in DHW temperature in 30 minutes it will display a DHW PROD ERR message At this point the control will go back to space heating mode and lock out the DHW to avoid freezing the building This message is general in nature and the R2107 control is essentially telling you I tried to make domestic hot water but nothing happened IN MOST CASES THE PROBLEM IS NOT WITH THE R2107 CONTR...

Page 67: ...21 Wiring diagrams Logamatic 2107 controls We reserve the right to make any changes due to technical modifications 67 21 Wiring diagrams ...

Page 68: ...Logamatic 2107 controls We reserve the right to make any changes due to technical modifications 68 5 4 Wiring diagrams ...

Page 69: ...ng curve 49 Heating system 29 L Language selection 28 LCD test 52 M Manual reset high limit STB 16 Maximum room temperature hook up 38 Menu 17 Modulating output 24 O OFF temperature 27 ON temperature 26 Operating time of the burner actuator 25 Outdoor temperature sensor 56 P Password 16 Pump kick 19 Pump logic 26 R Relay test 50 Remote control 36 Reset 54 Room temperature offset 42 S Safety instru...

Page 70: ...Notes Logamatic 2107 controls We reserve the right to make any changes due to technical modifications 70 ...

Page 71: ...Notes Logamatic 2107 controls We reserve the right to make any changes due to technical modifications 71 ...

Page 72: ...p 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 Bosch Thermotechnology Corp reserves the right to make changes without notice due to continuing engineering and technological advances ...

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