BSC...E - BSP...E - BESC...E

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Transcription:

INISOL DUO E DIETRISOL DUO E Solar hot water calorifer BSC...E - BSP...E - BESC...E EN User Guide 0007781-001-01

Contents 1 Introduction............................................................................. 1.1 Symbols and abbreviations................................................................................ 1. General................................................................................................ 1..1 Manufacturer's liability.............................................................................. 1.. Installer's liability.................................................................................. 1.. User's liability..................................................................................... 1..4 Compliance of design and manufacture................................................................. 1..5 Electrical compliance / Marking....................................................................4 Safety instructions and recommendations....................................................4.1 Safety instructions.......................................................................................4. Recommendations.......................................................................................4 Technical description.....................................................................5.1 Technical specifications...................................................................................5.1.1 Double coil hot water tank: BSC / BSP...E...............................................................5.1. Electro-solar hot water tank: BESC...E.................................................................6. Main parts.............................................................................................1. Programming and setting the electrical back-up................................................................1.4 Setting the thermostatic mixing valve........................................................................1 4 Diemasol A solar regulator................................................................14 4.1 General description of how the unit operates..................................................................14 4. Start-up...............................................................................................14 4. Adjustment keys........................................................................................15 4.4 LED message code.....................................................................................15 4.5 Measured values and adjustment parameters.................................................................16 5 Checking and maintenance...............................................................0 5.1 Solar installation........................................................................................0 5. Tank.................................................................................................0 5..1 Magnesium anodes...............................................................................0 5.. Safety valve or safety unit (on cold water inlet)..........................................................0 5.. Descaling.......................................................................................0 5..4 Casing.........................................................................................0 5..5 Vent device.....................................................................................0 5. Solar circuit............................................................................................0 BSC...E - BSP...E - BESC...E 11/05/1-0007781-001-01

1 Introduction 1.1 Symbols and abbreviations In these instructions, various markings and pictograms are used to draw your attention to particular information. In so doing, De Dietrich Thermique S.A.S wishes to safeguard the user's safety, obviate hazards and guarantee correct operation of the appliance. Danger Risk of a dangerous situation causing serious physical injury. Warning Risk of a dangerous situation causing slight physical injury. Caution Risk of material damage. Specific information. Refer to another manual or other pages in this instruction manual. DHW: Domestic hot water. 1. General Congratulations on choosing a De Dietrich product, a product of quality. We strongly recommend that you read the following instructions in order to guarantee the optimal operation of your appliance. We are sure that you will not be disappointed and that it will satisfy all of your expectations. 1..1 Manufacturer's liability Our products are manufactured in compliance with the requirements of the various applicable European Directives. They are therefore delivered with marking and all relevant documentation. In the interest of customers, we are continuously endeavouring to make improvements in product quality. All the specifications stated in this document are therefore subject to change without notice. Our liability as the manufacturer may not be invoked in the following cases: Failure to abide by the instructions on using the appliance. Faulty or insufficient maintenance of the appliance. Failure to abide by the instructions on installing the appliance. 1.. Installer's liability The installer is responsible for the installation and inital start up of the appliance. The installer must respect the following instructions: Read and follow the instructions given in the manuals provided with the appliance. Carry out installation in compliance with the prevailing legislation and standards. 1.. User's liability To ensure the optimum operation of your appliance, we strongly recommend that you abide by the following instructions: Read and follow the instructions given in the manuals provided with the appliance. Call on qualified professionals to carry out installation and initial start up. 1..4 Compliance of design and manufacture This product conforms to the requirements of european directive 97 / / EC, article, paragraph, on pressure equipment. Perform the initial start up and carry out any checks necessary. Explain the installation to the user. If a maintenance is necessary, warn the user of the obligation to check the appliance and maintain it in good working order. Give all the instruction manuals to the user. Get your installer to explain your installation to you. To carry out inspections and maintenance required by a qualified professional. Keep the instruction manuals in good condition close to the appliance. 11/05/1-0007781-001-01 BSC...E - BSP...E - BESC...E

1..5 Electrical compliance / Marking This product complies to the requirements to the european directives and following standards: 006/95/EC Low Voltage Directive Standard: EN 60.5.1. 004/108/EC Electromagnetic Compatibility Directive Standards: EN 50.081.1 / EN 50.08.1 / EN 55.014. Safety instructions and recommendations.1 Safety instructions Any work on the installation must be done by a qualified professional in compliance with the codes of practice and according to the instructions provided.. Recommendations Have the installation regularly serviced to guarantee that it operates correctly over time. It is essential to check the magnesium anode in the DHW tank and the installation and heat transporting fluid pressure every two years. Never cut the power to the solar control system, even during extended absences. The control system protects the installation against overheating in summer when it is running. During extended absences, we recommend lowering the set point temperature in the solar DHW calorifier to 50 C. When the user is present, the set point must be set to 60 C. Never drain the installation. Do not replace or add water or solar fluid to the installation. These actions must be carried out by a qualified technician. Do not modify the control system parameters unless fully conversant with them. 4 BSC...E - BSP...E - BESC...E 11/05/1-0007781-001-01

Technical description.1 Technical specifications.1.1 Double coil hot water tank: BSC / BSP...E BSC 00 E BSP 00 E BSP 400 E BSP 500 E Water content litres 00 00 70 500 Top up volume litres 104 104 1 18 Solar volume litres 196 196 8 17 Max operating pressure, DHW bar 7 10 10 10 Boiler heat exchanger Maximum operating temperature C 90 90 90 90 Maximum operating pressure bar 10 10 10 10 Water content litres 4. 4. 4.9 4.9 Exchange surface m 0.65 0.65 0.7 0.7 Pressure drop kpa.0.0.4.4 Solar exchanger Water content litres 8.9 8.9 8.9 11.1 Exchange surface m 1. 1. 1. 1.5 Performance Primary temperature at 70 C Power exchanged (1) () kw 16 16 17.5 17.5 Flow per hour (1) () l/h 90 90 40 40 Primary temperature at 80 C Power exchanged (1) () kw 1 1 Flow per hour (1) () l/h 515 515 565 565 Flow in 10 minutes () () l/10 mm 190 190 40 5 Primary temperature at 90 C Power exchanged (1) () kw 6 6 9 9 Flow per hour (1) () l/h 640 640 71 71 Cooling constant Cr * Wh/4h L K 0.0 0.0 0.19 0.15 * Only in France (1) Domestic cold water inlet 10 C - Domestic hot water outlet 45 C - Primary flow rate m /h () Domestic cold water inlet 10 C - Domestic hot water outlet 40 C - Domestic hot water storage temperature 65 C - Primary flow rate m /h () Values measured only on the back-up volume 11/05/1-0007781-001-01 BSC...E - BSP...E - BESC...E 5

.1. Electro-solar hot water tank: BESC...E BESC 00 E BESC 400 E BESC 500 E Water content litres 00 70 500 Top up volume litres 10 160 10 Solar volume litres 170 10 90 Max operating pressure, DHW bar 7 7 7 Solar exchanger Water content litres 8.9 8.9 11.1 Exchange surface m 1. 1. 1.5 Electrical back-up Output of the electrical back-up kw.4.0.5 Reheating time from 15 to 60 C h 50 min h 50 min h 10 min Cooling constant Cr * Wh/4h L K 0.0 0.19 0.15 * Only in France Composition of the NF CESI INISOL DUO solar systems packages (for France only) Check the composition of the CESI solar system, which complies with the requirements of the NF CESI mark, using the table below. The references and packages listed must be shown on the invoice for the system sold by the installer. A system is complete and functional according to the NF CESI mark if all system references appear on the invoice. The system is composed of the following elements: A collector field with 1, or solar collectors. A solar domestic hot water tank to which a solar station incorporating a heating pump, an expansion vessel and a Diemasol A control system is to be mounted. The solar fluid that protects the installation from frost and corrosion. The system is delivered to the installer in two units: a roof pack containing the collectors, their mounting system and the hydraulic connections on the one hand, and a cellar pack containing the calorifier, the system components and the solar fluid on the other hand. CESI System Array of collectors Domestic hot water production Solar fluid Number of panels Type of mounting ER 154 100014076 DHW calorifier type Volume (litres) Back-up type INISOL DUO/1 00-4 (> 0 ) ER 155 100014077 BESC 00 E EC 100006750 00 Electric EG 101 89807794 (17 ) ER 1 100014741 ER 10 100015850 INISOL DUO/1 00-4 (Full package) (> 0 ) (17 ) ER 11 100015851 ER 14 100016110 BESC 00 E Included in the full package 00 Electric Included in the full package 6 BSC...E - BSP...E - BESC...E 11/05/1-0007781-001-01

CESI System Array of collectors Domestic hot water production Solar fluid Number of panels Type of mounting ER 156 100014078 DHW calorifier type Volume (litres) Back-up type INISOL DUO/1 00-6 (> 0 ) ER 157 100014079 BESC 00 E EC 100006750 00 Electric EG 101 89807794 (17 ) ER 10001474 ER 154 100014076 INISOL DUO/1 400-4 (> 0 ) ER 155 100014077 BESC 400 E EC 5 10000675 400 Electric EG 101 89807794 (17 ) ER 1 100014741 ER 156 100014078 INISOL DUO/1 400-6 (> 0 ) ER 157 100014079 BESC 400 E EC 5 10000675 400 Electric EG 101 89807794 (17 ) ER 10001474 ER 154 100014076 INISOL DUO/ 00-4 (> 0 ) ER 155 100014077 BSC 00 E EC 100006751 00 Boiler EG 101 89807794 (17 ) ER 1 100014741 ER 1 10001585 INISOL DUO/ 00-4 (Full package) (> 0 ) (17 ) ER 1 10001585 ER 15 100016111 BSC 00 E Included in the full package 00 Boiler Included in the full package ER 156 100014078 INISOL DUO/ 00-6 (> 0 ) ER 157 100014079 BSC 00 E EC 100006751 00 Boiler EG 101 89807794 (17 ) ER 10001474 11/05/1-0007781-001-01 BSC...E - BSP...E - BESC...E 7

CESI System Array of collectors Domestic hot water production Solar fluid Number of panels Type of mounting ER 154 100014076 DHW calorifier type Volume (litres) Back-up type INISOL DUO/ 400-4 (> 0 ) ER 155 100014077 BSP 400 E EC 6 100006754 400 Boiler EG 101 89807794 (17 ) ER 1 100014741 ER 156 100014078 INISOL DUO/ 400-6 (> 0 ) ER 157 100014079 BSP 400 E EC 6 100006754 400 Boiler EG 101 89807794 (17 ) ER 10001474 Composition of the NF CESI DIETRISOL DUO solar systems packages (for France only) Check the composition of the CESI solar system, which complies with the requirements of the NF CESI mark, using the table below. The references and packages listed must be shown on the invoice for the system sold by the installer. A system is complete and functional according to the NF CESI mark if all system references appear on the invoice. The system is composed of the following elements: A collector field with 1, or solar collectors. A solar domestic hot water tank to which a solar station incorporating a heating pump, an expansion vessel and a Diemasol A control system is to be mounted. The solar fluid that protects the installation from frost and corrosion. The system is delivered to the installer in two units: a roof pack containing the collectors, their mounting system and the hydraulic connections on the one hand, and a cellar pack containing the calorifier, the system components and the solar fluid on the other hand.. CESI System Array of collectors Domestic hot water production Solar fluid Number of panels Type of mounting (mechanical tiles - Universal hook) ER 4 100019695 DHW calorifier type Volume (litres) Back-up type (Slates) ER 4 100019696 DIETRISOL DUO E 00-4 (mechanical tiles - On rafter) (> 0 ) (mechanical tiles) ER 44 100019697 ER 44 100019705 BESC 00 E EC 100006750 00 Electric EG 100 8980779 (> 0 ) (Slates / Flat tile) ER 446 100019709 8 BSC...E - BSP...E - BESC...E 11/05/1-0007781-001-01

CESI System Array of collectors Domestic hot water production Solar fluid Number of panels Type of mounting vertically) EC 51 100007869 DHW calorifier type Volume (litres) Back-up type horizontally) EC 580 1000090 DIETRISOL DUO/ 1 00-5 (> 0 ) vertically) EC 51 100007879 BESC 00 E EC 100006750 00 Electric EG 100 8980779 (> 0 ) horizontally) EC 586 10000908 (mechanical tiles - Universal hook) ER 4 100019695 (Slates) ER 4 100019696 DIETRISOL DUO E 400-4 (mechanical tiles - On rafter) (> 0 ) (mechanical tiles) ER 44 100019697 ER 44 100019705 BESC 400 E EC 5 10000675 400 Electric EG 100 8980779 (> 0 ) (Slates / Flat tile) ER 446 100019709 vertically) EC 51 100007869 horizontally) EC 580 1000090 DIETRISOL DUO/ 1 400-5 (> 0 ) vertically) EC 51 100007879 BESC 400 E EC 5 10000675 400 Electric EG 100 8980779 (> 0 ) horizontally) EC 586 10000908 11/05/1-0007781-001-01 BSC...E - BSP...E - BESC...E 9

CESI System Array of collectors Domestic hot water production Solar fluid Number of panels Type of mounting (mechanical tiles - Universal hook) ER 45 100019698 DHW calorifier type Volume (litres) Back-up type (Slates) ER 46 100019699 DIETRISOL DUO E 400-6 (mechanical tiles - On rafter) (> 0 ) (mechanical tiles) ER 47 100019700 ER 44 100019706 BESC 400 E EC 5 10000675 400 Electric EG 100 8980779 (> 0 ) (Slates / Flat tile) ER 447 100019710 (mechanical tiles - Universal hook) ER 4 100019695 (Slates) ER 4 100019696 DIETRISOL DUO 00-4 (mechanical tiles - On rafter) (> 0 ) (mechanical tiles) ER 44 100019697 ER 44 100019705 BESC 00 E EC 100006750 00 Electric EG 100 8980779 (> 0 ) (Slates / Flat tile) ER 446 100019709 vertically) EC 51 100007869 horizontally) EC 580 1000090 DIETRISOL DUO/ 00-5 (> 0 ) vertically) EC 51 100007879 BSC 00 E EC 100006751 00 Boiler EG 100 8980779 (> 0 ) horizontally) EC 586 10000908 10 BSC...E - BSP...E - BESC...E 11/05/1-0007781-001-01

CESI System Array of collectors Domestic hot water production Solar fluid Number of panels Type of mounting (mechanical tiles - Universal hook) ER 4 100019695 DHW calorifier type Volume (litres) Back-up type (Slates) ER 4 100019696 DIETRISOL DUO 400-4 (mechanical tiles - On rafter) (> 0 ) (mechanical tiles) ER 44 100019697 ER 44 100019705 BSP 400 E EC 6 100006754 400 Electric EG 100 8980779 (> 0 ) (Slates / Flat tile) ER 446 100019709 vertically) EC 51 100007869 horizontally) EC 580 1000090 DIETRISOL DUO/ 400-5 (> 0 ) vertically) EC 51 100007879 BSP 400 E EC 6 100006754 400 Boiler EG 100 8980779 (> 0 ) horizontally) EC 586 10000908 (mechanical tiles - Universal hook) ER 45 100019698 (Slates) ER 46 100019699 DIETRISOL DUO 400-6 (mechanical tiles - On rafter) (> 0 ) (mechanical tiles) ER 47 100019700 ER 44 100019706 BSP 400 E EC 6 100006754 400 Electric EG 100 8980779 (> 0 ) (Slates / Flat tile) ER 447 100019710 11/05/1-0007781-001-01 BSC...E - BSP...E - BESC...E 11

. Main parts Solar hot water calorifer - Tank in enamelled steel - Solar coil - Electrical resistor for heating the water - Insulation in CFC-free polyurethane foam - Casing: Painted sheet steel Solar station The solar heating pump unit comprises the solar circuit safety unit, a pressure and temperature gauge and a flowmeter to visualise circulation of the solar fluid between the panels and the DHW tank. An expansion vessel is connected to the solar unit; it is used to compensate for the expansion of the solar fluid in which the temperature varies between 0 and 150 C. Diemasol A regulator The control system is the solar system's brain; it makes the solar heating pump run at variable speeds according to the difference in temperature between the bottom of the DHW tank and the solar panels. The control system manages the set point temperature (temperature to be attained in the DHW tank), overheating and nighttime cooling. The control system also displays the various operating modes, the temperatures in the collectors and in the bottom of the DHW tank, as well as signalling any malfunctions.. Programming and setting the electrical back-up The temperature of the volume of water heated by the electrical resistor is set by the installer on commissioning of the installation according to the size of the home. Using the programming device installed in the electrical panel, it is possible to adjust the volume of water heated to 40 C by the resistor in two ways: By forcing contunuous heating by the resistor (off-peak hours contact) for significant unforeseen needs. By programming the heating time outside off-peak periods ( hours maximum according to the DHW volume at 40 C required) to compensate for the lack of sunshine in winter, for example. With a back-up, the programmed period is set in the factory to between 16 h and 18 h, i.e. at the end of the day when the solar contribution is less and just before the draw-off period. Ves 40 settings table Ves 40: Volume of hot water at 40 C BESC 00 E BESC 400 E Ves 40 off-peak hours only (by 55 C) 190 litres 0 litres 40 off-peak hours + peak hours (by 55 C) 50 litres 45 litres Ves 40 off-peak hours only (by 60 C) 0 litres 70 litres 40 off-peak hours + peak hours (by 60 C) 80 litres 470 litres.4 Setting the thermostatic mixing valve 57 8 8. Domestic cold water inlet 57. DHW tank domestic hot water outlet C007-A 1 BSC...E - BSP...E - BESC...E 11/05/1-0007781-001-01

The mixing valve is set in the factory for a DHW outlet temperature of 60 C (position 6). To lower this temperature, remove the top cover and turn the wheel anti-clockwise. In position 1, the outlet temperature is lowered to 5 C. 11/05/1-0007781-001-01 BSC...E - BSP...E - BESC...E 1

4 Diemasol A solar regulator 4.1 General description of how the unit operates In automatic mode, the Diemasol A regulator operates in accordance with the following principles: The sun's rays heat the transfer fluid in the collector. For the regulation process to be triggered, a minimum temperature of 0 C is required in the collector and there must be a temperature difference of 10 K by comparison with the tank. During the AUTO-calibration stage which follows (tu parameter setting tu, factory setting 1 minute) the PUMPE (relay) operates to its full extent (100%). Subsequently, the solar pump regime is calculated dynamically depending on a difference between the reference temperature (parameter DT, factory setting 0 K) and the calorifier temperature. Depending on the heat available, the system heats up the solar tank and cuts off when the tank storage temperature is reached (adjustment parameter SX, factory setting: 60 C).. 4. Start-up If the temperature in the solar collectors is higher than 10 C, the control system operates in safety mode. Wait until the evening before start-up or cool down (cover) the solar collectors. Switch on the device. The regulator starts an initialisation phase during which the LED flashes red and green. When initialisation is complete, the regulator changes to automatic mode. The factory settings for this mode give optimum performance with most installations. If special conditions make it necessary to change the settings, the corresponding adjustment parameters can be reset. 14 BSC...E - BSP...E - BESC...E 11/05/1-0007781-001-01

4. Adjustment keys The regulator is controlled by the keys only located below the display. The right-hand key (1) takes you to the next menu or increases the adjustment values. The left-hand key () does the opposite. The adjustment parameters are displayed after the measured values. To access these parameters, press and hold the right-hand key for sec. from parameter TC. When the display shows an adjustment parameter, the word SET appears. To set the value displayed, press the middle button (). 1. Select the required parameter using keys 1 and.. Press the key: The word SET flashes.. Adjust the value using keys 1 and. 4. Press the key: The set value is stored. The word SET stops flashing. 4.4 LED message code Continuously green Regulation operating normally (System Operating). Solar system Operating. The temperature of the hot water tank (parameter TS) increases. Continuously red The installation is stopped. The solar collectors are not hot enough (parameter TC) to enable operation. Flashing green/red - Initialisation phase - Sensor fault. See chapter Sensor fault. - The installation is in manual mode. Set the regulator to automatic mode. - Maximum tank temperature exceeded. The hot water tank has reached the set temperature and the installation is in overheating safety mode or in cooling mode. - Maximum temperature of the solar collectors exceeded. The installation is in safety mode. It remains in this mode until the temperature of the solar collectors has fallen back below the maximum temperature. 11/05/1-0007781-001-01 BSC...E - BSP...E - BESC...E 15

4.5 Measured values and adjustment parameters Channel Abbreviation Range Increment Factory setting Collector temperature TC [-50.0... 50.0] C - - Calorifier temperature TS [-50.0... 50.0] C - - Amount of heat kwh [0... 9999] kwh - - Pump regime PC [0... 100] % - - Self-calibration time tc [0... 5] minutes - - temperature difference DT [10... 0] K 0.1 0 Set temperature of the solar calorifier SX [0... 80] C 0.1 60 Maximum collector temperature CX [100... 15] C 0.1 100 C Self-calibration phase tu [1... 5] minutes 1 1 Pump minimum speed PN [50... 100] % 5 50 Tubular solar collector function FT [0... 1] 1 0 Maximum flow rate Fx [0 0] l/min 0.1 6.7 Manual mode MM [0... ] 1 *with S sensor only (optional) * Measured values Adjustment parameter The regulator has a safety system that cuts off the tank at temperatures of over 80 C. Measured value TC - Collector temperature The value TC shows the temperature in C given by the collector sensor in real time. Measured value TS - DHW sensor temperature The value TS shows the temperature in C given by the tank sensor in real time Measured value kwh - Amount of heat The value kwh shows in kwh the total amount of heat produced by the installation since the regulator was put into service. The quantity of heat (kwh value) can only be used for checks carried out for personal reasons. Measured value tc - Self-calibration time The value tc shows the self-calibration phase time remaining in seconds. During the self-calibration phase, the pump operates at full speed (100 %); its speed is only controlled after the self-calibration phase. 16 BSC...E - BSP...E - BESC...E 11/05/1-0007781-001-01

Adjustment parameter DT - temperature difference Adjustment parameter SX - Set temperature of the solar calorifier Adjustment range: 10... 0 K Factory setting: 0 K Switching-on difference: Non-adjustable value 10 K Switching-off difference: Non-adjustable value 5 K The regulator reads the temperatures measured by sensors S1 (TC) and S (TS) and compares the resulting temperature difference with the switching-on difference which is preset to 10 K. Regulation is activated when the temperature difference T is equal to or greater than the preset value. The display shows. The LED changes to green. When the value falls below the preset 5 K switching-off difference, the regulator switches off. The regulator tries to achieve a temperature difference of 0 K (factory setting) between the collector and the tank to produce high temperature hot water as rapidly as possible. To do this, it uses dynamic speed control. Adjustment range: 0... 80 C Factory setting: 60 C Maximum tank temperature (emergency cut-off): Nonadjustable value 80 C The set temperature Sx is the desired temperature for the solar calorifier. If the maximum tank temperature is exceeded, tank heating is interrupted to prevent damage due to overheating. The display shows and (flashing) and the LED changes to flashing red/ green. The higher the set temperature for the calorifier, the greater the energy stored. Setting to 60... 75 C is suitable for normal use with daily draw-offs. In the event of prolonged absences (weekend, holidays): - Reduce the calorifier temperature to 50 C - Turn off the back-up (boiler or electrical resistance) The installation is thus protected against overheating and the longevity of the heat conducting fluid is conserved. 11/05/1-0007781-001-01 BSC...E - BSP...E - BESC...E 17

Adjustment parameter CX - Maximum collector temperature Adjustment parameter tu - Self-calibration phase Adjustment range: 100... 15 C Factory setting: 100 C Maximum collector temperature (overheating safety): Nonadjustable value: 10 C. If the temperature in the collector rises above its maximum temperature CX even though the solar circuit is stopped (tank set storage temperature reached), the solar pump (R1) switches on and cools the collector (system cooling). In these conditions, the tank temperature rises, but it can't exceed 80 C (safety cut-off). If the calorifier reaches the maximum temperature of 80 C (safety shutdown), the regulator switches off the solar pump. The collectors may reach a temperature of 160... 00 C, which is normal for a solar installation. The cooling functions allows heat to dissipate; the system thus remains operational longer during hot summers. When it leaves the factory, the collector's maximum temperature is preset to 100 C; however, it is possible to change this within the range 100... 15 C. If the maximum collector temperature is exceeded, the display shows, and (flashing) and the LED changes to flashing red/ green. Adjustment range: 1... 5 minutes Factory setting: 1 minutes When the solar collector reaches a minimum temperature of 0 C and a preset temperature difference of 10 K from the tank temperature, the regulator switches on the solar circulating pump at full speed for the time period set by parameter tu. During this phase, any air bubbles present in the solar collectors or the pipes are moved to the complete solar station by the high circulation speed in the pipes and eliminated by the Airstop system (manual bleed degasser). After this phase, the regulator changes to "matched flow" mode. The remaining self-calibration time is displayed with parameter tc. Adjustment parameter PN - Pump minimum speed Adjustment range: 50... 100% Factory setting: 50% Adjustment parameter PN sets a minimum value for the solar pump speed at the relay R1 output. The lower the pump regime, the lower its flow. 18 BSC...E - BSP...E - BESC...E 11/05/1-0007781-001-01

Adjustment parameter FT - Tubular solar collector function Number of panels Tubular solar panels Flow rate l/h Flow rate l/min minimum: 1x4 80 1.7 1x5 750 1.5 1x6 680 11.4 Adjustment parameter MM - Operating mode Adjustment range: 0/1 Factory setting: 0 0: no 1: yes If the regulator detects a temperature rise in the collector of K compared to the last measurement, the solar pump runs at full speed for 0 seconds to measure the current average temperature. The measured temperature thus becomes the new reference temperature. If the measured temperature (new reference) then increases again by K, the solar pump starts again for 0 seconds. The regulator switches automatically to solar heating mode if the temperature difference between the collector and the calorifer exceeds the switching-on temperature difference when the solar pump is operating or the system is stopped. If the collector temperature falls by K while the system is stopped, the tubular solar collector activation temperature is rechecked. Adjustment range: 0... Factory setting: For inspection and maintenance work, it is possible to operate the regulator in manual mode. To operate the regulator in manual mode, it is necessary to input parameter MM from the following table. MM R1 LED 0 Open Flashing green/red 1 Closed Flashing green/red automatic automatic Adjustment parameter Fx - Maximum flow rate Adjustment range: 0... 0 l/min Factory setting: 6.7 In order for the regulator to calculate the quantity of heat produced by the installation (parameter kwh), input parameter Fx. The parameter Fx is equal to the flow in litres per minute in the solar circuit. Determine the value Fx using the following tables, according to the configuration of the installation and the number or surface area of the collectors. When the flow is input incorrectly, the display kwh will also be incorrect. The quantity of heat (kwh value) can only be used for checks carried out for personal reasons. Flat solar panels Solar panel installation Area m Number of panels Flow rate l/h Flow rate l/min... 5 1 or 400 6.7 6... 8 or 4 00 5 11/05/1-0007781-001-01 BSC...E - BSP...E - BESC...E 19

5 Checking and maintenance 5.1 Solar installation We recommend that you take out a preventive maintenance contract to check the fluid level, antifreeze protection, pressure in the system, leak test and general operation every year or every two years. 5. Tank 5..1 Magnesium anodes Have the condition of the anode checked after the first year. The magnesium anode must be checked by a qualified professional at least every years. After the first check, determine the frequency of future checks on the basis of anode wear. 5.. Safety valve or safety unit (on cold water inlet) The valve or safety assembly must be operated at least once a month in order to ensure that it is operating correctly and to prevent possible overpressure which would damage the DHW tank. 5.. Descaling In hard water regions, it is advisable to ask the fitter to descale the DHW tank exchanger once a year in order to maintain its level of performance. 5..4 Casing The casing of the DHW tank can be cleaned with soapy water. 5..5 Vent device If the vent device is not used, the installer must check the seal on the top vent connection. 5. Solar circuit To check operation of the solar system, consult the display on the control system. A steady red indicator light in fine weather indicates a malfunction. The pressure in the solar circuit can be checked on the solar station's pressure gauge. If the pressure shown is lower than 0.5 bar, call the installer. Never carry out work on the solar circuit yourself. Never work on the safety valve yourself. 0 BSC...E - BSP...E - BESC...E 11/05/1-0007781-001-01

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DE DIETRICH THERMIQUE S.A.S +7 (495) 1-1-51 IT DUEDI S.r.l. www.duediclima.it Distributore Ufficiale Esclusivo De Dietrich-Thermique Italia Via Passatore, 1-1010 San Defendente di Cervasca CUNEO +9 0171 857170 +9 0171 687875 info@duediclima.it ES DE DIETRICH THERMIQUE Iberia S.L.U. www.dedietrich-calefaccion.es Av. Princep d Astúries 4-45 0801 BARCELONA +4 9 90 50 +4 9 184 709 AD001NU-AH Copyright All technical and technological information contained in these technical instructions, as well as any drawings and technical descriptions supplied, remain our property and shall not be multiplied without our prior consent in writing. Subject to alterations. 11/05/1 0007781-001- 01 DE DIETRICH THERMIQUE 57, rue de la Gare F- 67580 MERTZWILLER - BP 0