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BOILER CONTROL AK 4000 SERVICE MANUAL Gasifying boilers BOILER SERVICE MANUAL VIGAS TECHNICAL DESCRIPTION CONTROL SYSTEM AK 4000 VIMAR 2024 Ver. D 3.00, R07...
2.4 SCHEMES OF BOILERS.......................... 2.4.1 Schemes of VIGAS hot water boilers..................... 2.4.2 Scheme of VIGAS combined boilers..................2.4.3 Scheme of the hot air boiler VIGAS 25 TVZ…................3. BASIC PARTS OF BOILERS........................3.1 BOILER BODY…............................3.1.1 VIGAS boiler body..........................3.1.2 VIGAS combined boiler body………..................
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– AK 4000 SL..................Example: Hydraulic installation Scheme 7....................Example: Hydraulic installation Scheme 9....................Location of VIGAS 12 DPA, Location of VIGAS 18 DPA, Location of VIGAS 26 DPA....... Location of VIGAS 16-25, Location of VIGAS 40, Location of VIGAS 60-100……………………………….
This document provides the service worker with a detailed technical description of VIGAS boilers, necessary for expert and professional handling of service operations. The document also includes a description of the AK 4000 control system along with a description of its basic and special functions, options for expanding the control system with Expander modules, and how to improve it with newer versions of the control software.
VIGAS TVZ hot air boilers are designed for burning dry wood from sawdust to logs up to 35 cm long and 20 cm in diameter. Sawdust, shavings, chips and offcuts must be burned together with logs. The boilers are welded from 4 and 6 mm thick steel sheets.
BOILER CONTROL AK 4000 SERVICE MANUAL 2.2 TECHNICAL DATA Table 1 THERMAL BOILERS VIGAS UD 29 Energy efficiency class Nominal boiler output Boiler ecodesign requirements CR (EU) 2015/1189 Boiler class acc. to EN 303-5: 2023 Max. operating pressure Fuel Wood, max.
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SERVICE MANUAL 2.3 TECHNICAL DAT Table 2 WARM WATER BOILER VIGAS 12 VIGAS 18 Combined boiler Wood and Pellets Energy efficiency class Boiler ecodesign requirements CR (EU) 2015/1189 16 / 12 24 / 18 36 / 26 Nominal boiler output WOOD/PELLETS Boiler class acc.
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BOILER CONTROL AK 4000 SERVICE MANUAL 2.4 TECHNICAL DATA HOT AIR BOILERS VIGAS TVZ Table 3 Hot air boilers VIGAS TVZ Output capacity Fuel Wood, max. moisture 20% of heat value min. 15 MJ/kg Output capacity 5 -28 Fuel consumption with nominal output...
SERVICE MANUAL 2.5 DIMENSION SKETCHES Dimensional sketch of VIGAS hot water boilers to table 1. Dimensional sketch of VIGAS DPA hot water boilers to table 2. 1. Inlet for drain valve 2. Hole for immersion valve housing 3. Cooling water outlet ¾"...
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BOILER CONTROL AK 4000 SERVICE MANUAL Dimensional sketch of the VIGAS hot air boiler to table 3.
Outlet brand of cooling water ¾“ Outlet brand of hot water Inlet brand of reverse water Water filling valve 2.6.1 BOILER SCHEMATICS Schematic VIGAS 16 Schematic VIGAS 25 Schematic VIGAS 40 Pic. 3 Schematic VIGAS 100...
12. Fire clay bricks 26. Secondary air 40. Safety temperature sensor 13. Bottom door 27. Brick LAC 45 (deflector) 2.6.3 Scheme of a hot air boiler VIGAS 25 TVZ DESCRIPTION 11. Door lock 22. Heat exchanger tubes 1. Control AK 4000 12.
6 mm. The heat exchanger is welded from steel pipes (57x 4.5 mm. Depending on the type of boiler, the heat exchanger is designed as single-row for boilers VIGAS 12DPA, 16, 25,40, as double-row for boilers VIGAS 18DPA, 26DPA, 60, 80, 25 TVZ and three-row for boiler VIGAS 100.
The spray protects the cover sheets against corrosion. Fig. 4 shows the assembly of VIGAS 16 cover sheets, hinges on the right side. In case of damage to the cover parts, it is necessary to specify the "CODE of the spare part"...
0907 0916 0908 VIGAS 26 0925/A 0924/A 0927 0931/B VIGAS 25 Hot air 0912/A 0911 1000 1001 0999 0909 3.2.1 Disassembly - assembly of the upper front cover (fig. 4 - pos. 3) In the case of dismantling the top cover, proceed as follows: Fig.5...
3.3 BOILER DOOR In general, on VIGAS boilers, we distinguish between an upper door that closes the storage space and a lower door that closes the combustion chamber. The door is designed in such a way as to prevent heat transfer to the boiler room space as much as possible.
0602 Cap handle 0604 Screw DIN 7991 M8x20 Plastic cap DOOR HINGE Hinge pad Ø12 0611 Hinge washer Ø16 for VIGAS 60,80,100 0611/A Nut M12 Zn 0610 Nut M16 Zn for VIGAS 60,80,100 0610/A Hinge cube Ø12 0607 Hinge cube Ø16 for VIGAS 60,80,100...
In connection with the AK 4000 boiler regulation, EBM pressure fans are always supplied. In the case of the VIGAS 25 TVZ hot air boiler, a KONWEKTOR type WBS-2 fan is additionally used for cooling. A V25 or V80 exhaust fan with an ATAS engine can be used as an accessory for all types of boilers.
SERVICE MANUAL 3.5 SHEET UNDER THE FAN (SUF) Fig.13 The basic part of every VIGAS boiler is the sheet under the fan (SUF). It serves to divide the air into primary and secondary lines. According to boiler type and functionality, we divide them into:...
BOILER CONTROL AK 4000 SERVICE MANUAL 3.5.2 Sheet under the fan VIGAS LAMBDA CONTROL For VIGAS boilers with the Lambda Control (LC) designation, a valve (2) controlled Fig.15 by a servo motor (5) is used to divide primary and secondary air. The opening position of the flap changes depending on the value of lambda λ...
VIGAS 60,80,100 (fig.19-pos.4) 2. KALINIT ŽO 1400 - body lining VIGAS 16-40, DPA, 25TVZ (fig. 19 – pos. 4). In the construction of the boiler, the heated concrete lining divides the body into two parts. There is a fuel tank above the lining and a combustion chamber below.
3.6.2 Fired concrete blocks Fired concrete blocks used in VIGAS boilers are made of special material LACfire 1800/20 SiC, they are fired at a temperature of 950 C.
3. A brick P3 Used as protection for the bottom of VIGAS 16, 25, 12 DPA, 25 TVZ boilers and VIGAS 16 and 12 boilers as well as side protection of the tank. In the VIGAS 25TVZ boiler as fan protection.
The combustion chamber is inserted only after the tank (5) is connected to the VIGAS DPA boiler. If it is necessary to separate the storage tank from the boiler, it is first necessary to disassemble the parts of the combustion chamber and only then can the storage tank (5) be pulled out.
From the fan, the air is led through the hole (5) into the space (4) in the case of VIGAS to 40 boilers and then into the line (1). In the case of VIGAS 60 to 100 boilers, the air is also led through the pipe (2) to the rear ventilation.
3.10 COOLING SAFETY EXCHANGER Fig.27 The cooling safety exchanger (1) together with the Honeywell TS131 ¾" release valve serves to protect VIGAS hot water boilers against overheating, especially in the event of a power failure or boiler pump failure. It is made of a Ø18mm copper pipe and installed in the body of the boiler using two special nozzles (2) with a ¾"...
4.1 Pellet base Fig.30 The base of the VIGAS pellet boiler is produced in two sizes. It is common for the VIGAS and 26 boilers, dimension (A) is 830 mm, and for the 12 DPA boiler, dimension (A) is 660 mm. It consists of seven basic parts: 1.
Snail (6) - length 600mm NEW TYPE More ch. 4.1.5 Pellet feeder. 4.1.4 Air distributor The air distributor is produced in two sizes for VIGAS 12 and 18 (2) and for 26 (7). It is a device that distributes the air Fig.34...
Air flap 4.1.5 Pellet feeder "NOS" Fig.35 The pellet feeder is a device that is produced in two sizes. For VIGAS 12 and (1) and for VIGAS 26 (3). In fact, they differ only in the diameter of the connecting pipe. For 12 and 18 Ø45...
BOILER CONTROL AK 4000 SERVICE MANUAL 4.1.6 Ignition coil Fig.36 The ignition spiral (1) serves to ignite the pellets. It is a consumable depending on the number of ignitions. The length of time in the switched-on state can be viewed in MENU 7.19 "BOILER SPECIAL SERVICE SETTINGS".
The AK 4000 control system is characterized by a control panel Fig.38 (AK4000 D), which is used in all types of VIGAS boilers. The control software loaded in the AK4000 D control panel allows you to set the configuration according to the type and power of the boiler.
SERVICE MANUAL 5.2 POWER BOARD FOR VIGAS LAMBDA CONTROL VIGAS LAMBDA CONTROL boilers use 2 types of power plates according to the type of LAMBDA PROBE used: 1. TYPE Lambda probe - LSU 4.9 power plate AK 4005 LSU - Code SP 4003/A 2.
Fig.41 5.2.2 AK 4000 SL for Lambda probe LSM 11 The power lambda board AK 4000 SL is available as a spare part for VIGAS LC boilers with the AK4000 control system, where a lambda probe type LSM 11 was used. It has a similar construction to the power board AK 4000 S, but the basic power converter has been replaced by an external power supply RS 25-12.
Boiler thermometer type KTY is a part of every VIGAS boiler. It is always connected to contacts T1 on the power board of the AK 4000 control system. The thermometer sensor is inserted together with the STB fuse capillary in the tube (B fig.42).
T2 thermometer T2 5.7 ACCUMULATION (ACCU) TANK THERMOMETER type KTY Fig.45 The ACCU tank thermometer is an additional accessory of the AK 4000 control system. Before installing it, you must first set the hydraulic scheme "Scheme 1" in the boiler...
6.1 Flue gas extraction fan The flue gas extraction fan "2" is used to limit the leakage of smoke into the boiler room when fuel is added to the VIGAS boiler. If the chimney does not meet the minimum dimensions "A"...
SERVICE MANUAL 6.2 EXPANDER AK 4000 control system 6.2.1 Expander AK4000 - technical description The AK4000 expander is an additional accessory to the AK4000 boiler control. It expands the capabilities of the boiler control system by controlling individual central heating (CH) circuits, including the regulation of the temperature of domestic hot water (DHW) when using multiple heat sources.
The AK 4000E Expander module is a basic element of every set. It consists of four inputs and outputs. The use of individual inputs and outputs is conditioned by the currently selected scheme and configuration (MENU 7.14) of the AK4000 control system on the VIGAS boiler. 1. BH BUS connector. The bus ensures...
The set always contains 1 connecting cable. NOTICE: Any free 4P4C connector on the AK4000E Expander module and the AK4000 power board can be used for connection. In the case of VIGAS boilers on the AK4000 EP module. 6.2.3.5 Thermometer for ACCUMULATION (ACCU) type KTY 4m Attached thermometer for ACCU tank type KTY.
Expander AK 4000 module, which ensure optimal operating conditions and at the same time comfortable operation of the VIGAS boiler. The control system is set so that the boiler is always protected. The condition for opening and controlling the heating and hot water circuits is a minimum boiler temperature of 60...
SERVICE MANUAL 6.2.4.3 Room thermostat The control system of the Expander AK 4000 makes it possible to control heating circuits using a room thermostat. After choosing a suitable scheme, it is possible to choose the option "no" or "BIN" for the room thermostat. More in MENU 7.1, 7.2.
“. See MENU 1 - Settings for "Aut" mode. VIGAS Scheme 5 choice of turning on the VIGAS boiler or the External boiler. By confirming "ON", the selected boiler will be switched on manually. Scheme 5 Operation of an external boiler 6.2.4.6 Hot water fireplace “KRB”...
MENU 3 – Clock setting MENU 4 – Error messages MENU 5 – Setting the time program (only in the case of schemes with Expander AK 4000) MENU 6 – Information on hardware and software (Boiler operating instructions) MENU 7 – Service settings under password...
Scheme 5 or more, the "Temperature setting" MENU will be supplemented with the setting of the temperatures of the CH, DHW circuits and their priorities with the option of heating in case of fuel burnout in the VIGAS boiler. Burnout and shutdown of the boiler is signaled by the AUT statement.
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Control of the heating circuit to the selected temperature only takes place if the temperature of the VIGAS boiler exceeds C (this does not apply if the VIGAS boiler is already in "Aut" mode, see above) and the room thermostatis in the "ON"...
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MENU 1 BOILER CONTROL AK 4000 SERVICE MANUAL Control according to the outside temperature "equithermal regulation" If the equithermal heating option is selected - „yes“, the temperature of the heated circuit is calculated automatically based on three parameters: 1. outdoor temperature, 2.
SERVICE MANUAL MENU 1, MENU 2 Setting the desired temperature for hot domestic hot water (DHW) Domestic hot water (DHW) heating is controlled by means of a pump or electric valve (open without voltage), see MENU 7.9. The DHW is heated to a comfortable (daytime) or reduced (nighttime) temperature. From a practical point of view, it is advantageous for DHW to use only a comfortable temperature.
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MENU 2 BOILER CONTROL AK 4000 SERVICE MANUAL Choice of "lambda" value - WOOD - Lambda Control The "lambda" value determines the excess of oxygen in the flue gas. The recommended value is 1.35, which represents λ approx. 6% O .
MENU 2, MENU 3 SERVICE MANUAL Choice of boiler fuel type The VIGAS boiler is a semi-automatic boiler for burning pellets and pieces of wood. When using "PELLET" fuel, it is necessary to select a graphic symbol„ “ . When using "WOOD"...
MENU 4 BOILER CONTROL AK 4000 SERVICE MANUAL MENU 4 – ERROR MESSAGES In general, if the boiler is switched off, the "OFF" LED does not light up. In the "ON" state of the boiler, the LED lights If all elements of the boiler are fault-free, the LED lights up (green).
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SERVICE MANUAL MENU 4 2. Faults and warnings on the display Main power: AK 4000 BH Control Short-term power failure (230V, 50Hz) without affecting the function of the boiler. If the warning appears frequently, check the supply 13:08 72,5 C voltage, use a different supply phase.
MENU 5, MENU 6 BOILER CONTROL AK 4000 SERVICE MANUAL MENU 5 - TIME PROGRAM SETTING The time program determines the use of comfort„ „ (daily) and attenuation „„ (night) temperature in the heating circuits. The control system of the Expander AK4000 allows you to set up to 16 different time programs in 15-minute intervals.
SERVICE MANUAL MENU 7 MENU 7 – SERVICE SETTINGS MENU STRUCTURE - PASSWORD SETTING "0000" Service settings under the password PIN 0000 are used only in reserved cases. These settings must only be performed by a professionally trained service technician (if necessary, also by the customer). In the service settings, the type of boiler with accessories, the hydraulic wiring diagram of the boiler, etc.
MENU 7.1 , MENU 7.2 BOILER CONTROL AK 4000 SERVICE MANUAL MENU 7.1, 7.2 SETTING THE HEATING CIRCUIT OF THE CENTRAL HEATING SETTING UNDER PASSWORD "0000” 1 MaxT 70 C 35-80 C 20-80 C 1 T0 40 C 0000 120s...
SERVICE MANUAL MENU 7.9 MENU 7.9 DOMESTIC HOT WATER (DHW) HEATING SETTING SETTING UNDER "0000" PASSWORD - setting the maximum temperature for domestic hot water (DHW). Warning: If there is a threat of overheating of the 0000 boiler, the temperature „ “...
MENU 7.10 BOILER CONTROL AK 4000 SERVICE MANUAL MENU 7.10 SOLAR HEATING SETUP SETTING UNDER "0000" PASSWORD - zapnutie, vypnutie solárneho okruhu. „ON“ – switched on 0000 „OFF“ - switched off - setting the maximum temperature in the solar circuit. If the temperature exceeds the set value, the pump in the solar circuit is switched off.
MENU 7.11 SERVICE MANUAL MENU 7.11 SETTING THE BOILER PARAMETERS SETTING UNDER "0000" PASSWORD - V25 L Additional designation Boiler type according to performance 0000 Attention: The boiler type designation together with the additional designation must always match the designation on the boiler's nameplate.
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- setting the units for the - selection of boiler temperature sensor type. temperature display. Option to choose C - degrees KTY - standard type (all VIGAS boilers) Celsius or F - degrees Fahrenheit. PT1000 - spare type of thermometer (HVS)
MENU 7.12 SETUP FOR AK4000 M MODULE SETTING UNDER "0000" PASSWORD In necessary cases, it is possible to connect the AK 4000 M module to the AK4000 regulation. Using the module, it is possible to update the firmware (control program) or...
- pressure fan. - exhaust fan. - boiler pump. - servo valve drive. For VIGAS and VIGAS Lambda Control boilers. 7.13 - pellet feeding auger. When "ON" is confirmed, the auger works in the period for 100% nominal boiler output.
SERVICE MANUAL MENU 7.14 MENU 7.14 SETTING THE HYDRAULIC DIAGRAM OF THE BOILER SETTING UNDER "0000" PASSWORD By changing the hydraulic wiring diagram, the control of the pump output, boiler configuration, etc. will change. Therefore, it is important that the software setting of the hydraulic scheme corresponds to the actual connection of the boiler in the central 0000 heating system.
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MENU 7.14 BOILER CONTROL AK 4000 SERVICE MANUAL Wiring diagrams with EXPANDER AK4000 After confirming the wiring diagram with the Expander (Diagram 5 and above), the service settings are automatically supplemented with options for individual CH and DHW heating circuits. A description of each option is provided below.
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MENU 7.14 SERVICE MANUAL SCHEME 6 Control: Basic regulation AK4000 + Expander AK4000 double set (code SP 5002) Connection with two independently controlled circuits with servo-drive. Possibility to choose floor, radiator heating or their combination. The temperature CH1 (S5) can be regulated based on the outside temperature (S3), room thermostat CH1 (S4) or a combination of them.
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MENU 7.14 BOILER CONTROL AK 4000 SERVICE MANUAL SCHEME 7 Control: Basic regulation AK4000 + Expander AK4000 basic set (code SP 5001) Connection with one CH controlled heating circuit for floor or radiator heating. The CH temperature (S5) can be regulated based on the outside temperature (S3), the room thermostat (S4) or a combination of them.
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MENU 7.14 SERVICE MANUAL SCHEME 8 Control: Basic regulation AK4000 + Expander AK4000 double set - (code SP 5002) Connection with two separately controlled heating circuits CH1, CH2, ACCU tank and the option of heating with a hot water fireplace (KRB and/or an external boiler (K1). Possibility to choose floor, radiator heating or their combination. The temperature of CH1 (S5) can be regulated based on the outside temperature (S3), the room thermostat (S4) or a combination of them.
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MENU 7.14 BOILER CONTROL AK 4000 SERVICE MANUAL SCHEME 9 Control: Basic regulation AK4000 + Expander AK4000 basic set (code SP 5001) Connection with one CH controlled heating circuit with servo drive and storage tank (ACCU). DHW heating controlled by pump (C3) or electric valve, see Menu.7.9. The CH temperature (S5) can be regulated based on the outside temperature (S3), the room thermostat (S4) or a combination of them.
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SERVICE MANUAL MENU 7.14 SCHEME 10 Control: Basic regulation AK4000 + Expander AK4000 basic set - (code SP 5001) Connection with one CH controlled heating circuit with servo-drive. DHW heating controlled by pump (C3) or electro- valve, see MENU 7.9. The CH(S5) temperature can be regulated based on the outside temperature (S3), the room thermostat (S4) or a combination of them.
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MENU 7.14 BOILER CONTROL AK 4000 SERVICE MANUAL SCHEME 11 Control: Basic regulation AK4000 + Expander AK4000 double set - (code SP 5002) Connection with two controlled heating circuits CH1 and CH2 with servo drive. DHW heating is controlled using a pump (C4) or an electric valve, see Menu 7.9.
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MENU 7.14 SERVICE MANUAL SCHEME 12 Control: Basic regulation AK4000 + Expander AK4000 double set (code SP 5002) Connection with two controlled heating circuits CH1 and CH2 with a servo drive and the option of heating with a hot water fireplace. DHW heating controlled by pump (C4) or electric valve, see Menu 7.9. Possibility to choose floor, radiator heating or their combination.
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MENU 7.14 BOILER CONTROL AK 4000 SERVICE MANUAL SCHEME 13 Control: Basic regulation AK4000 + Expander AK4000 double set - (code SP 5002) Connection with one CH controlled heating circuit with servo drive and storage tank (ACCU) and the option of heating with a hot water fireplace, external boiler (K1) or solar panels.
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SERVICE MANUAL MENU 7.14 SCHEME 14 Control: Basic regulation AK4000 + Expander AK4000 basic set - (code SP 5001) Connection with a controlled three-way valve for the set return temperature (S3). Range from 60 to 75 Scheme 14 Electrical connection table: Inputs, outputs. Menu 7.15 Modul Symbol Description...
MENU 7.15 allows the display of inputs and outputs according to the selected scheme for individual modules: AK4000S - power base plate of the VIGAS boiler AK4000E1 - Expander E1 module AK4000E2 - Expander E2 module 7.15...
190 C selected value. By confirming SELECT "ENTER" the field will flash and the selection we will complete the line display. Example: Line display of values. AK 4000 BH Contro l AK 4000 BH Contro l 85 C 76,6 C 13:08...
Example: The value 0.36 represents 36% of 100% of the full power of 00:00:00 the VIGAS 16 kW boiler fan, that means that when the power of 100% is displayed on the control panel display, the fan will only go to 36% of 2.0 C...
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The goal of the AK 4000 Lambda Control control system is to stabilize these conditions as much as possible and thus create an environment for perfect fuel combustion with a minimum amount of emissions with the highest possible efficiency.
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Pellet dosing time of DPA boilers at rated output „ “ in seconds The pellet dosing system in VIGAS boilers uses a period of 15 seconds. Parameter„ “ determines how long the dosing auger will be in operation at rated output from 15s.
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WOOD position fig.34 chap. 4.1.4 "Air distributor", but then it opens (returns) after a set time. By adding a small amount of third air, combustion emissions are reduced. Choice of ultrasonic sensing of the level of pellets in the reservoir of VIGAS boilers „...
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“ 00:00:00 In the case of VIGAS DPA boilers, the operating time of the ignition coil is calculated. The service technician has the opportunity to find out the total operating time of the coil. The time can be reset when replacing the spiral. By confirming the "ENTER"...
SERVICE MANUAL 8. PROBLEMS, CAUSES AND THEIR SOLUTION A problem Cause/Solution When heating with wood, the boiler performance Use of fuel that is too wet. decreased compared to the previous period. Clean the ventilation system. See chapter 3.9. Clean the fan blades. See chapter 3.4. After closing the chimney flap, the boiler burns A small amount of primary air.
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BOILER CONTROL AK 4000 SERVICE MANUAL Error indication Error identification Cause/Solution Broken fuse 3.15A Broken 3.15A fuse that powers the boiler pump. Connection checkčerpadla. The red LED is flashing Upozornenie na komínový teplomer The warning is displayed if, after ...
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SERVICE MANUAL Cause/Solution Error indication Error identification Battery status 2x AA - 1.5V Dead batteries Replacement of batteries The red LED light is on Lambda probe evaluation error Communication error with AK4005 Damaged AK4005 LSU module. LSU LAMBDA COM Error See chapter 5.2.1.
Module for connecting the Lambda 3024/A – – – probe 3035/A – – – Cable for the Belimo servo-drive 3013/A – – standard, for payment, only for VIGAS 40, 40LC, only for VIGAS 100, 100LC (2 pcs)
Cooling fan cable 3012 standard for payment When ordering spare parts, use the spare part code listed in the table. 12. ELECTRIC SCHEME VIGAS TVZ – AK 4000S ELECTRIC SCHEME VIGAS 25 TVZ Hot air boiler Pos. Description...
SERVICE MANUAL 14. ELECTRIC SCHEME VIGAS – AK 4000 SL AK 4000D +V -V DISPLAY PE NF STB1 ST B2 AA 1,5V PE NF STB1 STB2 AA 1,5V AK 4000EP DÚCHADLO HAVARÍJNY TERMOSTAT AK 4000SL BLOWER CRASH TERMOSTAT HEIZVENTILATOR SICHERHEITSSCHALTER 4P4C ODŤAH...
SERVICE MANUAL Location of VIGAS 16, 25 Location of VIGAS 40 Location of VIGAS 80, 100...
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BOILER CONTROL AK 4000 SERVICE MANUAL Notes:...
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Príboj 796 976 13 Slovenská Ľupča SLOVAKIA tel.: 00421 48 4187 022 fax: 00421 48 4187 159 WWW.VIMAR.SK WWW.VIGAS.EU vimar@vimar.sk All technical changes are reserved for Pavel Vigaš VIMAR 2024 Images are illustrative and may differ from reality. 31.10.2023 23:45...
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