1. INTRODUCTION_________________________________________________________________________________ 4 2. REGULATIONS _________________________________________________________________________________ 5 3. EEC APPROVALS AND CERTIFICATIONS _____________________________________ ¡Error! Marcador no definido. 4. BOILER GENERAL VIEW: DESCRIPTION OF THE COMPONENTS________________________________________ 6 5. DIMENSIONS ___________________________________________________________________________________ 8 6. TECHNICAL DATA_______________________________________________________________________________ 9 7. BOILER HEAT EXCHANGER _____________________________________________________________________ 10 8.
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Data indicated in the present manual are liable to changes. ADISA CALEFACCIÓN (ARTICULOS DOMESTICO-INDUSTRIALES CALEFACCIÓN S.L.) has the right to make modifications without notice of any product of its range. No company, person or entity external to ADISA CALEFACCION (ARTICULOS DOMESTICO- INDUSTRIALES CALEFACCIÓN S.L.) can modify this document.
This is why the European campaign known as “20-20-20 in 2020” has been created, with the aim, among others, of cutting carbon dioxide emissions by 20% by 2020. ADISA CALEFACCION, company specialized in the manufacturing of gas boilers with high efficiency performances and reduced pollutant emissions (“clean combustion”), has developed an innovating and revolutionary product contributing to a technological evolution in the field of water boilers for centralized installations: the ADI LT boiler.
The boiler maintenance must be realized following the instructions of the manufacturer’s technical manual and with a minimum regularity as indicated by the current regulations. 3. EEC APPROVALS AND CERTIFICATIONS ADISA boilers, model ADI LT, are certified as follows: MODEL 105 to 400...
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Boiler control unit and power modulation Hot water flow Hot water return Flues outlet Gas connection Air pressure switch Air filter Ignition transformer Gas pressure switch Pressure sensor Air purgers (manual) Models ADI LT 105 to 200 (view from above):...
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ADI LT boiler – Technical manual Page Models ADI LT 250 and higher:...
(female-threaded sleeve) Control panel ADI LT 105 to ADI LT 150: flow-return, male-threaded connections of 2”. Higher models: flanged connections, PN 6. (*) H: Height without taking into consideration the increase due to the silent-block feet supplied with the boiler.
ADI LT boiler – Technical manual Page 7. BOILER HEAT EXCHANGER The boiler heat exchanger (flues-water) is made of stainless steel: is a stainless steel enriched with a special alloy (for a better resistance to corrosion and to high temperatures). The boiler heat exchanger consists of 2 water collectors, an upper one and a lower one, connected by means of multiple vertical tubes forming the combustion chamber.
ADI LT boiler – Technical manual Page 8. POWER MODULATION AND COMBUSTION SYSTEM (1) Burner of fire resisting alloy mesh (2) Ionization electrode (checking the flame presence) (3) Ignition electrode (4) Pilot flame (5) Venturi for the air-gas mix (6) Double multi-block gas valve (7) Gas inlet (boiler gas connection to the installation) (8) Fan for the air-gas mix (9) Motor fan, of variable speed...
ADI LT boiler – Technical manual Page 8.1 ASSEMBLY OF GAS CONNECTION – AIR-GAS INLET The ADI LT boiler includes an air-gas premix system of modulating combustion, composed of: Venturi operating as an air-gas mixer, ensuring combustion with a constant proportion of air/gas to the premix burner, throughout its power modulation range.
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ADI LT boiler – Technical manual Page Exploded view of the assembly burner – fan – gas valve for models LT 250 and higher:...
ADI LT boiler – Technical manual Page 8.2 AIR INLET FILTER The air inlet to the venturi is protected by a filter retaining the dust that is usually in the atmosphere. Attention: it is important to avoid excessively dusty or dirty environments (for ex.
ADI LT boiler – Technical manual Page 10. CONTROL PANEL - SIEMENS The boiler control panel is placed in the upper part of the boiler front. (11) (A) Boiler on/off switch (11) Display: readings, messages, errors... Concept ITEM Button for boiler reset (T1) Not operational: Select D.H.W.S.
ADI LT boiler – Technical manual Page 10.1 DISPLAY Not available (water pressure) Values Maintenance, manual operation To take measurements of the boiler flues. Stop of the active controller Not available: D.H.W.S.: temperature or D.H.W.S. actived. Heating activated or reading of boiler set-up temperature : reading of the outside temperature : level of operation at a nominal set-up temperature : level of operation at a reduced set-up temperature...
ADI LT boiler – Technical manual Page 10.4 BOILER LOCKOUT CODE Meaning In case of boiler lockout, a glittering error code appears on the display (see example: E 151) Press key T2 and then press key info, T10, to get access to the error subcode (see example: 238) To detect the type of error, see the list of “Error codes visualized on the display”...
ADI LT boiler – Technical manual Page 10.6 AVAILABLE PARAMETERS THAT CAN BE ADJUSTED BY THE FINAL USER • Press the button T6 or T7 , to accede directly to the programming level “final user”. • Select the required line by pressing the buttons T6 and T7, , the display will show “Pxxx”...
ADI LT boiler – Technical manual Page 11. DATA AND INFORMATION VISUALIZED ON THE DISPLAY - SIEMENS 11.1 AVAILABLE INFORMATION 11.1.1 Available readings at the User level • When you are on the main display (if not, press the button T2), press T10, “info” •...
ADI LT boiler – Technical manual Page 11.1.3 Available readings at Maintenance Level 2 • When you are on the main display (if not, press switch T2), press button T10, “info” • Press simultaneously, during 3 seconds at least, the buttons T6 and T7 •...
ADI LT boiler – Technical manual Page 11.3 ERROR CODES VISUALIZED ON THE DISPLAY See the errors list in the appendix at the end of the present document. To show the error subcode, follow the procedure indicated in the paragraph 10.4 of this document. 11.4 OPTIONAL: FLOW TEMPERATURE FUNCTION OF OUTSIDE TEMPERATURE Attention: this function is optional and must be notified to the Official Technical Service in order to activate it.
ADI LT boiler – Technical manual Page 11.6 REGULATION OF SEVERAL BOILERS In an installation with several boilers it is important that the power generated by the boilers adapts at any moment to the demand of the installation, always optimizing the generators’ efficiency. 11.6.1 Boilers simple sequence The control unit must regulate the stop/start sequence of each boiler according to the demand of the installation (by means of the flow temperature probe, which is common to all boilers, and at a constant flow temperature).
ADI LT boiler – Technical manual Page 11.6.3 External control unit regulating and optimizing all the boilers’combined operation. When there are several boilers supplying the same installation, the control units type RVS 63,…, enable to realize a sequence up to 15 boilers equipped with the LMU control unit. The sequence control unit allows evaluating the demand of the installation and regulating the boilers according to a strategy of selection.
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ADI LT boiler – Technical manual Page b) Boilers and installation Sequence control unit RVS 63,… OCI 420 OCI 420 OCI 420 Boiler 1 Boiler 2 Boiler 3 c) Example of boilers sequence and power regulation Example of a possible sequence that can be realized (multiple options can be chosen). L e i s t B a n d M i n = 4 0 % 4 0 0...
ADI LT boiler – Technical manual Page In this example, the boilers activation and their power regulation would be realized as shown below: 100% 100% 100% 2379Z05 11.6.4. Remote Control or telecomputing Both boilers provided with a LMU control unit and with RVS control units (both of sequence and of control of circuits), always of the same mark, can be connected to a module OCI 611of communication by MODEM, that allows both a control of the installation and a control of the boilers’operation.
ADI LT boiler – Technical manual Page 12. ELECTRIC DRAWINGS The electric supply must be 220/230 V, 50 Hz, single phase, earth connection. The electric installation must comply with the current rules. The electric power consumed by each boiler is indicated in the table of technical characteristics.
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ADI LT boiler – Technical manual Page ELECTRIC DRAWING ADI LT 105 - 200 NotE: (13b) only included in model ADI LT 105...
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ADI LT boiler – Technical manual Page ELECTRIC DRAWING ADI LT 250 – 325...
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ADI LT boiler – Technical manual Page ELECTRIC DRAWING ADI LT 400 – 750...
ADI LT boiler – Technical manual Page 13. SAFETIES These are the safeties included in the boiler: Cause for safety Safety Boiler restart activation component of the boiler No flame Ionization Manual reset electrode Fan failure/air Air pressure Manual reset passage obstruction switch Overheating...
ADI LT boiler – Technical manual Page 15. INSTALLATION 15.1 BOILERS HEAT OUTPUT The boilers total power output to be installed must be the proper one to respond to the demands of the installation. In order to generate heating with the maximum efficiency at every moment, it is important to consider the number of the boilers to be installed, so that the total power should be appropriate for the different demands of the installation in the different periods of the year.
“Technical data”. To select the type and its volume Units Boiler model speed of opening/closing, consult the Technical Department of ADISA CALEFACCIÓN. ADI LT 105 0,0102 An inertial tank must be installed between the gas ADI LT 130 0,0128...
ADI LT boiler – Technical manual Page 15.5 DRAINING OF THE BOILER CONDENSED PRODUCTS 15.5.1. Water condensing Having the heat exchanger in stainless steel, the ADI LT boiler has no limit of the minimum return temperature. This allows obtaining a higher profit of the heat generated by the combustion products: - Sensible heat: the heat transferred due to the cooling of burnt gases.
(see paragraph 15.6.2). - Values of CO2, for Natural Gas Models Range CO2 (%) for Natural Gas ADI LT 105 to 200 7,2 - 9% ADI LT 250 to 475 7,2 - 8,2% ADI LT 550 to 750...
ADI LT boiler – Technical manual Page Example 1: installation with 1 boiler Example 2: installation with two boilers and one common chimney (see regulations) Legend: 1. Boiler 2. Horizontal section connected to the boiler flues outlet (it should be as shortest as possible and with the minimum number of elbows) 3.
Cut-off/closing valves in the flow and return pipes of each boiler. Do not weld the boiler to the installation piping. Models ADI LT 105 to ADI LT 200: male threaded flow-return connections of 2”. Higher models: flanged connections, PN 6.
ADI LT boiler – Technical manual Page 15.7.3 Hydraulic pressure drop The boiler pressure drop depends on the water flow; the maximum ∆T must be 15 ºC: 2,80 2,30 ADI LT 100 to 270 1,80 ADI LT 330 to 500 1,30 0,80 0,30...
ADI LT boiler – Technical manual Page 15.7.4 Water manifold It avoids hydraulic unbalances between the circuits and the boilers. It ensures a constant water flow to the boiler, independently from the consumptions required. In accordance with current regulations. In case of heavy sludge in the water, it drives it to the bottom of the tank. It can not avoid lighter sludge.
(see the corresponding paragraph). ADISA CALEFACCION disposes of professional staff that, after a visit of the installation, can advise you according to each case.
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ADI LT boiler – Technical manual Page 15.7.6 System drawings Boiler Water collector or water manifold Controller D.H.W.S. buffer vessel Thermostat Plate heat exchanger Temperature sensor Boiler circulation pump Pressure switch Mesh filter Manometer Closed expansion vessel Thermometer Non-return valve Filter to separate sludge, oxides Automatic air venting Mixing valve...
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ADI LT boiler – Technical manual Page • System drawing of heating circuits • System drawing of one boiler and only D.H.W.S.
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ADI LT boiler – Technical manual Page • System drawing: D.H.W.S. and heating circuit See comments under the corresponding paragraph. • System drawing of an old installation: heating circuit See comments under the corresponding paragraph.
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ADI LT boiler – Technical manual Page • System drawing of an installation with high pressure in the secondary circuit (very high building with the boilers room in the ground floor), or old installation in very bad conditions: heating circuit. See comments under the corresponding paragraph.
ADI LT boiler – Technical manual Page 16. THE BOILER START-UP 16.1 BEFORE THE START-UP The first start-up is a very important operation on which the future effectiveness and reliability of the equipment can depend. For this reason, it must be carried out by our own Official Technical Assistance Service. Before the start-up, it is important to check that: The installation is in accordance with this manual’s instructions and with the local regulations.
ADI LT boiler – Technical manual Page 16.2 THE BOILER CONTROL UNIT AND OPERATING CYCLE The control unit regulates: • The boiler operating cycle. • The boiler safeties (by indicating also the possible reasons for the boiler lockout). • The boiler power modulation. Short description of the boiler operating cycle: LEGEND of the operating phases: Display...
Combustion parameters: CO , CO, flues temperature, air temperature, efficiency, water temperatures. Models range (%) for Natural Gas ADI LT 105 to 200 7,2 - 9% ADI LT 250 to 475 7,2 - 8,2% ADI LT 550 to 750 7,5 - 9% Remember that these changes must be realized by specialized technicians.
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(movement A in the chart). With the lower control of the gas valve you can move the straight line vertically (movement B in the chart). Detail of the multi-block gas valve in model ADI LT 105: (1) Adjustment of the maximum power: turn clockwise less gas flow.
Once realized these steps, you can place the control panel in two different positions, in order to allow the reading of parameters when you are realizing the boiler maintenance. RANGE ADI LT 105 to 200: Front view of the boiler without lower casing panel...
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ADI LT boiler – Technical manual Page Front view of the boiler inside: (c, d) Disconnect the electric connections and the pressure pipes: (a) Pressure pipe connecting the gas valve to the venturi (just included in models ADI LT 250 and higher). (b) Pressure pipe connecting the air pressure switch to the venturi.
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ADI LT boiler – Technical manual Page 17.2 POSITION OF PROBES AND SENSORS (1) Water flow temperature sensor (2) Water return temperature sensor (3) Safety overheating thermostat (4) Water pressure sensor (5) Manual air purgers/venting (their number varies according to the model).
ADI LT boiler – Technical manual Page 17.3 COMBUSTION DATA Combustion data : Air excess CO not diluted Flues temperature Room temperature Efficiency Chimney natural draught Water temperatures (flow, return) Ionization Gas consumption: Gas type Flow Gas pressure (inlet, injectors) Combustion chamber pressure Air/gas mix pressure Burner pressure...
7. The parts replaced under guarantee will remain property of ADISA CALEFACCIÓN, and the user is obliged to return them to ADISA CALEFACCIÓN free of charges within a maximum period of 7 days, otherwise the spare parts provided will be invoiced.
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In order to exercise the rights of this guarantee, the purchaser must renounce to his own right and submit to the jurisdiction of the courts of Barcelona. The guarantee validity excludes any other kind of responsibility for ADISA CALEFACCIÓN (ARTÍCULOS DOMESTICO-INDUSTRIALES CALEFACCIÓN, S.L.).
ADI LT boiler – Technical manual Page 19. APPENDIX I: LIST OF ERROR CODES Alba_Nr Diagn_Nr DIAGNOSIS TEXT REACTION Complementary Short circuit in outside temperature probe (if it is installed) Message Short circuit FAILURE OF THE EXTERNAL PROBE Open circuit in outside temperature probe ((if it is installed ) Message Open circuit Short circuit in boiler flow temperature probe (B2)
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ADI LT boiler – Technical manual Page Alba_Nr Alba_Nr Alba_Nr Diagn_Nr Diagn_Nr Diagn_Nr DIAGNOSTICO DIAGNOSTICO DIAGNOSIS TEXTO TEXTO TEXT REACCION REACCION REACTION Complementary Complemento Complemento Error of software µC2 Lock-out - reset Failure of software µC2 LP does not open with the boiler stopped (¿contactos AIR PRESSURE SWITCH "LmodZL_QAA (608)"...
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ADI LT boiler – Technical manual Page Alba_Nr Diagn_Nr DIAGNOSIS TEXT REACTION Complementary APS (air pressure switch) does not open if it turns off (¿contactos LP does not open when the boiler stops (¿contactos AIR PRESSURE SWITCH pegados?) Lock-out - reset pegados?) FUNCTION MAINTENANCE The function Controller Stop is activated...
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