Installation and Service Instructions AUTOMATIC 11.15am 71°F T 180 160 AU 140 120 6 720 618 142 - 08/2008 US/CA Boiler Controls Logamatic 2107 For the installing contractor Please read carefully prior to commissioning or servicing.
Production This product has been tested and is certified for both the US and Canadian markets and meets all applicable US and Canadian standards. Notice: To match the typical building, the following factory settings may need adjustment: 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 additional details.
Contents 1 Safety instructions and user notes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5 1.1 Intended use . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5 1.2 Hazard symbols . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5 1.3 Please observe these safety instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6 2 Setting parameters and display data for the Logamatic 2107 .
Contents 10 DHW production ON/OFF . 11 DHW recirculation pump 12 Heating curve . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50 13 Running the relay test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51 14 Performing an LCD test . . . . . . . . . . . . . . . . . . . . . . .
Safety instructions and user notes 1 1 Safety instructions and user notes This chapter contains general safety instructions, which you should observe when installing and servicing the Logamatic 2107 controls. The other safety instructions that appear in other sections of these service instructions must also be followed exactly. The safety instructions always precede the individual tasks. Read the safety instructions carefully before carrying out the tasks described below.
1 1.3 Safety instructions and user notes Please observe these safety instructions The Logamatic 2107 controls has been designed and built in accordance with currently recognized standards and safety requirements. However, property damage resulting from inappropriate handling of this device cannot be completely excluded. – Only operate the Logamatic 2107 controls for the intended purpose and when it is in perfect working order.
Setting parameters and display data for the Logamatic 2107 2 2 Setting parameters and display data for the Logamatic 2107 Press the "Display" key and "Install" key at the same time to call up the service level (see Chapter "Keys for extended functions", page 14).
2 Setting parameters and display data for the Logamatic 2107 Display SOLAR7 SLR FN ON Solar function ON/OFF MAX SL SR Maximum storage tank temperature in solar mode MIN SL SR Minimum storage tank temperature in solar mode DHW PROD Domestic hot water ON/OFF RECIRC PUMP5 DHW circulation pump5 HTG CURVE 1 Heating characteristic curve HK1 4 HTG CURVE 2 Heating characteristic curve HK24 RELAYS Relay test BURNER (St.
Installation 3 Installation 3.1 Mounting of the Logamatic 3 z On the GC124, G124X, GA124, G234X, G244, and G334X boilers remove the front panel of the boiler. z Remove rear top panel of the boiler by first unscrewing 2 screws at the rear edge, then sliding rear panel backward to disengage the hooks. z Remove the two screws at the top of the Logamatic, and lift up top cover. z Insert the two front feet of the control into the holes provided on the top of the boiler.
3 Installation z Electrical connections must be made according to the wiring diagrams. z All the wires should be routed through the cable raceway at the rear of the boiler. If using conduit install a Logabracket (page 11). 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.
Installation 3.2 3 Installation of the Logabracket The Logabracket is designed to create strain relief for your line voltage and low voltage wiring for the 2107 Logamatic controls. The bracket is mainly designed for use with the G115, G125, GB125 and G124X boilers, but with minor modifications can be used on other boiler models as well. G115, G125, GB125, G124X, GC124 Line the bracket up with holes, place the Logamatic in place over the holes and secure with screws provided.
4 4 Logamatic 2107 controls Logamatic 2107 controls Introduction to the user interface of the Logamatic 2107 controls. 9 8 10 7 AUTOMATIC 11.15am 71 6 T 180 160 AU 120 140 T 180 160 AU 140 120 1 3 5 2 4 Fig.
Logamatic 2107 controls 4 Keys for basic functions You can control the basic functions using this keypad. 1 Fig. 2 2 3 4 Keypad for basic 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) Logamatic 2107 controls - We reserve the right to make any changes due to technical modifications.
4 Logamatic 2107 controls Keys for extended functions This keypad is located behind the flap. 1 2 3 4 5 6 7 8 11 Fig.
Checking the manual reset high limit (STB) 5 5 Checking the manual reset high limit (STB) USER NOTE Check the STB after the initial installation, and after every service. z Switch on the system. + z 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 "RELAY" is shown. RELAY Hold down the "Display" key and turn the dial, until "BURNER ON" appears in the display. The burner starts running.
5 Checking the manual reset high limit (STB) z Push the lever or key (depending on the type of STB) back with a screwdriver or similar device and hold until the high limit safety cut-out has triggered (Fig. 5). 1 2 Fig. 5 Triggering the manual reset high limit Item 1: Key Item 2: Lever Terminating or exiting the test Press "AUT". Reattach the dial and turn it to the "AUT" position. z To reset the manual reset high limit, remove the cover on the STB and press the reset button located beneath it (Fig.
Using the service level 6 6 Using the service level Access to the service level is password protected. The service level must only be used by trained heating contractors. Unauthorized access invalidates your warranty. SYSTEM DAMAGE through inappropriate work on the system. CAUTION! 6.1 z Only enter or change the operating values in accordance with the details shown in these instructions. Different values will change the heating system control programs and can cause the system to malfunction.
6 6.2 Using the service level Calling up the menu Press the "Display" key and "Install" key at the same time to call up the service level. Release both keys. Once you have called up the service level, you can access all the setting options it contains. + The service level is broken down into main menus and submenus. You can scroll through the main menu level by turning the dial. AMERICAN BOILER CIRCUIT 01 Press the "Display" key to access the submenu.
Using the service level 6.3 6 Modifying settings + 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. Some parameters are only displayed if the relevant modules are installed (module FM 241– mixer, FM 242– 2-stage burner, FM 244 – solar module). The controls detects the modules and enables the parameters.
7 7 General data General data USER NOTE "PUMP KICK" In all operating modes, all the pumps are switched on and then off again for 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. 20 Logamatic 2107 controls - We reserve the right to make any changes due to technical modifications.
General data 7.1 7 System frost protection The controls is equipped with a system frost protection function. If the outdoor temperature drops beneath the frost protection limit, the heating system pump (contacts 61/63) will be started. The factory default for the frost protection limit is an outdoor temperature of 41°F (5°C). The setting applies to all heating circuits. Changing the system frost protection Press the "Display" key and "Install" key at the same time to call up the service level.
7 Type of building Outdoor temperature in °F (°C) 7.2 General data 79 (26) 75 (24) 72 (22) 68 (20) 64 (18) 61 (16) 57 (14) 1 54 (12) 2 50 (10) 46 (8) 43 (6) 12am 3am 6am 9am 12pm 3pm 6pm 9 pm Time in hours Fig. 7 Thermal delay Item 1: Current outdoor temperature Item 2: Adjusted outdoor temperature The building type is used to take into account the heat storage capacity of the building's mass and the thermal inertia of the building compared to fluctuations in the outdoor temperature.
General data 7 Changing the type of building 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 "BLDG RESP" is shown. BLDG RESP 2 Hold down the "Display" key and turn the dial until the required value appears (in this case "1"). + BLDG RESP Release "Display" to store your input.
7 7.3 General data Setting the burner type The basic 2107 controls single stage burners. To use it with 2-stage or modulating burners install a FM 242 burner module. When the FM 242 burner module is installed, the factory default changes from "1-STAGE" to "2-STAGE". With 2-stage burners, the operating hours are displayed separately for stage 1 and stage 2. Changing the burner type + Press the "Display" key and "Install" key at the same time to call up the service level.
General data 7.4 7 Minimum modulating output of the modulating burner The modulating output requires the burner module FM 242 and "MODULATE" burner setting. The factory default is "30 %", i.e. the burner modulates its set output within an output range of 30-100 %. USER NOTE The data can be found in the technical documentation for the installed burner. Changing the minimum modulation Press the "Display" key and "Install" key at the same time to call up the service level.
7 7.5 General data Operating time of the modulating burner actuator This feature requires the burner module FM 242 and "MODULATE" burner setting. The factory default is "12 seconds". USER NOTE The data can be found in the technical documentation for the installed burner. Changing the operating time of the actuator 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.
General data 7.6 7 Pump logic To protect the boiler against corrosion from condensation inside the combustion chamber, the boiler pump (while the burner is running) will not start until the boiler water has reached a certain temperature. The temperature can be set using the "PUMPLOGIC" parameter. The factory default is 104°F (40°C), which is recommended for cast iron boilers.
7 7.7 General data Maximum boiler temperature The maximum boiler temperature is the highest target temperature the boiler will reach. The burner should switch off no later than when this temperature is reached (this applies to heating mode and DHW mode). The factory default is 176°F (80°C). Changing the maximum OFF 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.
General data 7.8 7 Language selection AMERICAN 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 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. Logamatic 2107 controls - We reserve the right to make any changes due to technical modifications.
8 Heating circuit data 8 Heating circuit data 8.1 Heating system The controls is designed for 2 heating circuits. The basic 2107 supports 1 heating circuit, which can be upgraded to 2 heating circuits using the FM241card.
Heating circuit data 8 Changing the heating system + 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. "CIRCUIT 01" setting (heating circuit without mixing valve) CIRCUIT 01 Press "Display" to call up a submenu. "PERIM HTG" appears.
8 Heating circuit data + 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. "CIRCUIT 02" setting (heating circuit with mixing valve) CIRCUIT 02 Press "Display" to call up a submenu. "RADIATOR" appears.
Heating circuit data 8.2 8 Reference design temperature The reference design temperature is the boiler supply temperature required by the structure and the heating system to achieve the target room temperature at an outdoor temperature of 14°F (-10°C). The reference design temperature helps define the characteristic heating curve which is the basis for outdoor reset.
8 Heating circuit data Changing the reference design 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 "CIRCUIT 01" or "CIRCUIT 02" is displayed. Press "Display" to call up a submenu. "PERIM HTG" or "FLOOR HTG" appears. Turn the dial until "REF TEMP" is shown. REF TEMP °F 167 Hold down the "Display" key and turn the dial until the required value appears (in this case 133°F (56°C)).
Heating circuit data 8.3 8 DHW priority For the heating circuit 02 with mixing valve (if installed), you can set the DHW priority or DHW heating in parallel to the heating mode. Please note that if you select DHW heating in parallel to heating mode, it will take longer to recharge the tank. The factory setting is: For DHW priority: "ON" USER NOTE For heating circuit 01 the DHW priority is always ON and cannot be disabled.
8 8.4 Heating circuit data Maximum heating circuit temperature The maximum heating circuit temperature is a target temperature that should not be exceeded in the heating circuit. The factory setting is: With PERIM HTG system: With FLOOR HTG system: 194°F (90°C) 122°F (50°C) This setting is only available for heating circuit 2. Changing the maximum heating circuit temperature Press the "Display" key and "Install" key at the same time to call up the service level.
Heating circuit data 8.5 8 Remote control ON/OFF A BFU (accessory) remote control allows to easily control a heating system from the living space. If the controller is equipped with a BFU remote control, the remote control must be activated and assigned to the appropriate heating circuit. Instructions for assigning the remote control to the required heating circuit (HK1 or HK2) can be found in the remote control operating instructions.
8 Heating circuit data If the remote control is active, the desired room temperature for day and night mode must be entered on the remote control, rather than via the controls. 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. All settings can then only be made via the remote control.
Heating circuit data 8.6 8 Maximum room temperature compensation The room temperature compensation adjusts the calculated outdoor reset heating curve according to the measured room temperature. Any deviations from the room setpoint are then corrected immediately by adjusting the boiler setpoint temperature accordingly. USER NOTE The maximum room temperature hook-up determines the range within which deviations from the room setpoint value may be corrected.
8 Heating circuit data Changing the differential 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 "CIRCUIT 01" or "CIRCUIT 02" is displayed. Press "Display" to call up a submenu. "PERIM HTG" or "FLOOR HTG" appears. Turn the dial until "ROOM COMP" is shown. ROOM COMP °F 6 Hold down the "Display" key and turn the dial until the desired value appears (in this case "OFF").
Heating circuit data 8.7 8 Setback mode selection The Logamatic 2107 control contains night setback capability and allows you to select from 4 different types or modes of night setback for customized operation. These setback modes differ in their operation. Night Setback Options 1 Boiler Off ("BLR OFF") BLR OFF In this mode the heating system shuts down completely during the night time as long as the outdoor temperature exceeds the "FREEZTEMP" setting.
8 Heating circuit data + 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 up a submenu. "PERIM HTG" or "FLOOR HTG" appears. Turn the dial until "OASETBACK" is displayed. OASETBACK + RMSETBACK Hold down the "Display" key and turn the dial until the required value appears (in this case "OASETBACK").
Heating circuit data 8.8 8 Room temperature offset If no remote control is installed in the living area, the room temperature compensation (see Chapter 8.6 "Maximum room temperature compensation" page 39) cannot be used. The room temperature values set on the controls then simply provide a specification for calculating the boiler setpoint temperature.
9 Solar data 9 Solar data 9.1 Solar function ON/OFF (with FM 244 only) The Solar function menu option is used to optimize the solar gain and minimize the use of fossil fuel. To achieve this, the controllers for the solar heating system and the conventional heating boiler are combined in a single unit. The controls monitors the current solar gain and the stored heat in the DHW tank, and reduces the setpoint temperature in the standby part of the DHW tank to prevent it being reheated unnecessarily.
Solar data 9.2 9 Maximum storage tank temperature in solar mode The solar heating system will collect all solar heat that can be harvested. It will only stop when there is not sufficient insolation or to protect the tank from overheating. When "MAX SOL T" is reached at the top tank sensor FB, the solar pump is switched off. RISK OF SCALDING The DHW temperature can be set to a maximum of 194°F (90°C).
9 9.3 Solar data Minimum storage tank temperature in solar mode The DHW temperature to be generated by the boiler for a given solar gain (DHW setpoint, see operating instructions for the settings) may be automatically reduced so that the tank can be charged the solar heating system. The "MIN SOL T" parameter contains the lower limit to which the temperature may fall. If the temperature of the DHW in the tank (FB sensor) falls below the value set here, then it is recharged by the boiler.
DHW production ON/OFF 10 10 DHW production ON/OFF If the heating system is equipped with a DHW tank, DHW heating must be activated. The factory setting is "ON". If no DHW heating is installed, it should be disabled to avoid the DHW SENSR ERR error message. The controls starts the burner if necessary in order to heat the DWH. The DHW tank charging pump runs. Once the burner has been switched off, the controls uses the residual heat in the boiler to heat the DHW.
11 DHW recirculation pump 11 DHW recirculation pump The DHW recirculation pump ensures a constant supply of hot water to the taps. It is automatically activated with DHW heating and the pump runs in intermittent or continuous mode if at least one heating circuit is in normal heating mode (day mode), or if DHW heating is in day mode. The DHW recirculation pump runs 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).
DHW recirculation pump 11 Changing the recirculation pump run time 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 "RECIRCPUMP 2" main menu is displayed. RECIRCPUMP 2 Hold down the "Display" key and turn the dial anti-clockwise until the required value appears (in this case "4"). + RECIRCPUMP Release "Display" to store your input. 4 Press "ENTER" to return to the next higher level.
12 Heating curve 12 Heating curve DHW temperature in °F (°C) The heating curve test is used to display the DHW temperature for the current operating status at external temperatures 50°F (+10°C), 32°F (±0°C) and 14°F (-10°C). The heating curve displayed here (Fig. 11) is calculated by the controls on the basis of the values set for design temperature, offset and setpoint room temperature, and corresponds to the currently active characteristic.
Running the relay test 13 13 Running the relay test The relay test is used to check that the switching relays in the controls are working correctly. SYSTEM DAMAGE CAUTION! 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.
13 Running the relay test Steps of the relay 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 "RELAY" is shown. RELAY Press "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.
Performing an LCD test 14 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. LCD TEST Hold down "Display" and turn the dial. All the numbers and symbols must appear on the display. + °F°C 1 2 Release the "Display" key.
15 Time, correcting the accuracy 15 Time, correcting the accuracy Here you can set the time accurately to the second. The factory setting is "0" seconds/day. Define the deviation in seconds/day. 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 "TIME" is shown. TIME 0 Hold down "Display" and turn the dial until the identified deviation appears in the display, e.g.
Reset 16 16 Reset "RESET" is used to return all the controls settings to their factory settings. Any previously programmed heating times as well as burner and solar hours remain unchanged, however. Reset steps + 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 "RESET" and 7 eights are displayed. RESET 8888 888 Hold down the "Display" key until all the numbers in the display have disappeared.
17 Version number 17 Version number The version number is an encoded number that represents the production release of the controls. The version number must be specified in the event of troubleshooting or questions 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.
Sensor curves 18 18 Sensor curves Always take the comparative temperature measurement (room, supply, external and flue gas temperatures) in the vicinity of the sensor. RISK OF LIFE from electric shock. WARNING! z Disconnect the system from the power supply before opening the cover of the controls. The curves depict mean values and are subject to tolerances. z Remove the plug for the sensor to be measured from the controls (FB, FA, FK, FV, FG, FSK, FSS).
18 Sensor curves Resistance [k:] Boiler water (FK), supply (FV), DHW (FB) and solar water tank (FSS) temperature sensors 68 (20) 86 (30) 104 (40) 122 (50) 140 (60) 158 (70) 176 (80) 194 (90) Water temperature [°F (°C)] Resistance [k:] Collector sensor (FSK) . . -58 (-50) 58 32 (0) 122 (50) 212 (100) 302 (150) Collector temperature [°F (°C)] 392 (200) 482 (250) Logamatic 2107 controls - We reserve the right to make any changes due to technical modifications.
Operating values at the service level/setup report 19 19 Operating values at the service level/setup report Input range Factory setting American American -4 – 50°F (-20°C – 10°C) 41°F (5°C) 1, 2, 3 2 1-stage/2-stage/modulating 1-stage 10 %–60 % 30 % 5 s–60 s 12 s Pump logic 59 – 140°F (15°C – 60°C) 104°F (40°C) Maximum temperature 158 – 210°F (70°C – 99°C) 176°F (80°C) Heating circuit 01 None/PERIM HTG PERIM HTG Heating circuit 02 None/PERIM HTG/FLOOR HTG FLOOR HTG Reference tem
19 Operating values at the service level/setup report Input range Factory setting Offset for heating circuit 1 -9 – +9°F (-5°C – +5°C) 0°F (0°C) Offset for heating circuit 2 -9 – +9°F (-5°C – +5°C) 0°F (0°C) ON/OFF ON Maximum heating circuit temperature for heating circuit 2 (PERIM HTG) 68 – 140°F (20°C – 60°C) PERIM HTG 194°F (90°C) Maximum heating circuit temperature for heating circuit 2 (FLOOR HTG) 68 – 194°F (20°C – 90°C) FLOOR HTG 113°F (45°C) ON/OFF ON MAX-SL SR 140 – 194°F (60°C
Troubleshooting 20 20 Troubleshooting Only one error is displayed at a time, so the following table indicates the priority of each error. Fault Possible cause of the fault Effects on control characteristics Remedy Burner fault BURNER ERROR Burner control Boiler not working Central heating stays cold Eliminate the burner fault as described in the boiler or burner documentation. Boiler sensor error BLR SENSOR ERROR Sensor defective.
20 Troubleshooting Fault Possible cause of the fault Effects on control characteristics Remedy Supply temperature sensor 2 error MIX SENSOR ERROR Sensor defective. Connecting cable interrupted The mixer is no longer being controlled. Check the sensor connection.
Troubleshooting 20 20.1 Troubleshooting "NO HEAT" call “BRENNER” (burner) wiring block – Terminal 4 – 120V Neutral – Terminal 8 – 120V input clocks hours run meter (must be field wired) – Terminal 9 – 120V input displays “BURNER ERR” message (must be field wired) – Terminal 10 / 11 – “dry” contacts close to energize burner – Terminal 12 – 120V power (drops out when manual reset limit is tripped) Burner operation The R2107 is not a cold start control.
20 Troubleshooting Oil burners – factory jumper between terminals 12 & 10, brings 120V from 12 to 10. When contacts close between terminals 10 & 11, 120V power is sent from terminal 11 to Hot on the burner (terminal 4 is the neutral). 64 Gas burners – remove factory installed jumper between terminals 10 & 12.
Troubleshooting Logamatic 2107 controls - We reserve the right to make any changes due to technical modifications.
20 Troubleshooting 20.2 Troubleshooting „INSUFFICENT HEAT“ call A call for insufficient heat is generally a simple matter of adjusting the heating curve. The water temperature required for any heating system is determined by any number of factors but the biggest influence we see is the amount of radiation in comparison to the actual heat loss. Buildings with less radiation in relation to there actual heat loss require higher water temperature than buildings that are overradiated.
Troubleshooting 20 20.3 Troubleshooting Domestic Hot Water TROUBLESHOOTING A “NO DHW” CALL: A “DHW PROD ERR” message will appear on the LCD screen of the R2107 control with regard to domestic hot water production. DHW ERR - when the tank temperature drops to the low limit (9°F below the set point), the R2107 goes into DHW priority mode.
21 Index 21 Index B Boiler water temperature sensor . . . . . . . . . . 58 Burner system . . . . . . . . . . . . . . . . . . . 24 C Collector sensor . . . . . . . . . . . . . . . . . . 58 Controls on the 2107 . . . . . . . . . . . . . . . . 12 D Design temperature . . . . . . . . . . . . . . . . 33 DHW priority . . . . . . . . . . . . . . . . . . . . 35 DHW recirculation pump . . . . . . . . . . . . . . 48 E Emergency shutoff switch – heating system . . . . 6 F Frost protection . . . . . . . . . . . .
Notes Logamatic 2107 controls - We reserve the right to make any changes due to technical modifications.
Notes 70 Logamatic 2107 controls - We reserve the right to make any changes due to technical modifications.
Notes Logamatic 2107 controls - We reserve the right to make any changes due to technical modifications.
United States and Canada Bosch Thermotechnology Corporation 50 Wentworth Avenue Londonderry, NH 03053 U.S.A. Tel. 603-552-1100 Fax 603-584-1681 www.buderus.net Products manufactured by Bosch Thermotechnik GmbH D-35573 Wetzlar www.buderus.de Bosch Thermotechnology Corporation reserves the right to make changes without notice due to continuing engineering and technological advances.
