Related Manuals for MHS Boilers ADI LT
Summary of Contents for MHS Boilers ADI LT
- Page 1 ADI LT LOW TEMPERATURE BOILER INSTALLATION, OPERATION AND MAINTENANCE MANUAL L338 11/2011...
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Page 2: Table Of Contents
6. TECHNICAL DATA RANGE ADI LT ________________________________________________________________ 10 6.1 Models ADI LT 105 to ADI LT 400_________________________________________________________________ 10 ADI LT 105 to ADI LT 475: modulating power from 30% _________________________________________________ 10 6.2 Models ADI LT 475 to ADI LT 950_________________________________________________________________ 11... - Page 3 19. APPENDIX I: LIST OF ERROR CODES ____________________________________________________________ 56 Data indicated in the present manual are liable to changes. MHS Boilers has the right to make modifications without notice of any product of its range. No company, person or entity external to MHS Boilers can modify this document.
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Page 4: Introduction
It can be connected to telecomputing. Reduced dimensions and weight: Boiler heat exchanger ADI LT 475 (440 kW of output) Large: 81 cm, Long: 94 cm, Weight : 490 Easy installation in boiler rooms of difficult access. Installation in terraces (reinforcement of the structure is not required). -
Page 5: Regulations
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... -
Page 6: Boiler General View: Description Of The Components
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): L338 11/2011... - Page 7 ADI LT boiler - Technical Manual Page Models ADI LT 250 and higher: L338 11/2011...
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Page 8: Dimensions
ADI LT boiler - Technical Manual Page 5. DIMENSIONS ADI LT 130- 150-200 ADI LT 105 ADI LT 250 - 475 Model F (7) 151,5 82,5 1110 112,5 1110 134,3 134,3 112,5 1110 134,3 112,5 1110 217,3 177,5 1583 1156... - Page 9 ADI LT boiler - Technical Manual Page ADI LT 550 - 950 Model F (7) 1583 1026 1341 1040 1583 1026 1341 1040 1040 1583 1022 1365 1583 1022 1365 1160 1040 1583 1022 1365 1160 1040 (*) Attention: Heights H, HG, HA, HF, without taking into consideration the increase due to the silent-block feet supplied with the boiler (dimension “SB”).
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Page 10: Technical Data Range Adi Lt
The electric protection of each boiler must be prepared considering the maximum value between the electric consumption at the start-up and the electric consumption at the maximum power output. ADI LT 105 to ADI LT 475: modulating power from 30% Note: data in the present document are liable to changes without prior warning. -
Page 11: Adi Lt 475: Modulating Power From 30
Propane gas = CONSULT Electric supply to the boiler: ADI LT 475 – 750: 230 V, 50 Hz, single-phase and Earth. ADI LT 1300 – 950: 380 V, 50 Hz, tri-phasal, and Earth. The electric protection of each boiler must be prepared considering the maximum value between the electric consumption at the start-up and the electric consumption at the maximum power output. -
Page 12: Boiler Heat Exchanger
The boiler heat exchanger is insulated. Several manual purgers are installed in the higher part of the boiler for the air venting of the boiler. Front and rear view: models ADI LT 200 and lower Front and rear view ADI LT 250 and higher L338... -
Page 13: Power Modulation And Combustion System
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... -
Page 14: Assembly Of Gas Connection – Air-Gas Inlet
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. - Page 15 ADI LT boiler - Technical Manual Page Exploded view of the assembly burner – fan – gas valve for models LT 250 and higher: Motor-Fan basculating attached to the body of the boiler. L338 11/2011...
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Page 16: Air Inlet Filter
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. -
Page 17: Control Panel - Siemens
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... ITEM Concept Button for boiler reset (T1) Not operational: Select D.H.W.S. -
Page 18: Display
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... -
Page 19: Boiler Lockout Code
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”... -
Page 20: Available Parameters That Can Be Adjusted By The Final User
ADI LT boiler - Technical Manual Page 10.6 AVAILABLE PARAMETERS THAT CAN BE ADJUSTED BY THE FINAL USER , to accede directly to the programming level “final user”. Press the button T6 or T7 , the display will show “Pxxx”... -
Page 21: Data And Information Visualized On The Display - Siemens
Boiler return temperature Value not available: D.H.W.S. temperature (probe 2) Not available (only available for the condensing range ADI LT: combustion flues temperature) Outside temperature (if the external probe is connected and the control unit is programmed) Composite outside temperature (average of hours) (if the external probe is connected and the control unit is programmed). -
Page 22: Available Readings At Maintenance Level 2
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... -
Page 23: Error Codes Visualized On The Display
An outside temperature probe should be added (supplied separately from the boiler and not included in the price) and connected to terminals 1 and 2 of the strip X10-06 positioned in the LMU control unit of the ADI LT boiler. -
Page 24: Regulation Of Several Boilers
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. -
Page 25: External Control Unit Regulating And Optimizing All The Boilers'combined Operation
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. - Page 26 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).
- Page 27 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 L338 11/2011...
- Page 28 ADI LT 105 to ADI LT 750: The electric supply must be 220/230 V, 50 Hz, single phase, earth connection. (Remember: in case of 220/230 V, two phases, it is necessary to install an electric insulating transformer with one of the phases of the secondary connected to earth acting as neutral).
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Page 29: Electric Drawing Adi Lt 105 - Adi Lt 200
ADI LT boiler - Technical Manual Page 12.1 ELECTRIC DRAWING ADI LT 105 - ADI LT 200 L338 11/2011... -
Page 30: Electric Drawing Adi Lt 250 - Adi Lt 325
ADI LT boiler - Technical Manual Page 12.2 ELECTRIC DRAWING ADI LT 250 - ADI LT 325 L338 11/2011... -
Page 31: Electric Drawing Adi Lt 400 - Adi Lt 750
ADI LT boiler - Technical Manual Page 12.3 ELECTRIC DRAWING ADI LT 400 - ADI LT 750 L338 11/2011... -
Page 32: Safeties
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... -
Page 33: Installation
15.2 LIFTING AND TRANSPORTING THE BOILERS BY A CRANE 15.2.1 Models ADI LT 250 and higher: a) In order to lift the boilers by a crane, attach the straps to the boiler hooks: there are 2 in the front and 1 in the back of the boiler heat exchanger. -
Page 34: Gas Supply
ADI LT boiler - Technical Manual Page 15.4 GAS SUPPLY The gas supply pressure, the gas flow and the dimensions of the gas connection, they all depend on the type of gas used, according to the boiler installed and the current regulations. -
Page 35: Draining Of The Boiler Condensed Products
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. -
Page 36: Chimneys
ADI LT boiler - Technical Manual Page 15.6 CHIMNEYS The flues outlet, according to the current rules, must ensure a correct evacuation of the burnt gases, without backward flows and without producing condensed products. The natural draught of the chimney must evacuate the burnt gases from the boiler flues outlet. -
Page 37: Flue Draught Stabilizer
ADI LT boiler - Technical Manual Page 15.6.2. Flue draught stabilizer and volume control damper It is strongly advised to install volume control dampers in all flue systems and where excessive draught is likely to be encountered, then draught stabilisers also should included. -
Page 38: Hydraulic Installation
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, up to 3” (PN 6), 4” (PN 10) Closed expansion vessel, calculated and installed according to the regulations. -
Page 39: Hydraulic Pressure Drop
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: Units 105 130 150 ΔT = 10ºC 8,9 11,2 12,8 16,3 19,8 22,5... -
Page 40: Water Manifold
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. -
Page 41: Water Quality Of The Installation
(see the corresponding paragraph). MHS Boilers utilises professional staff that, after a visit of the installation, can advise you according to each case. L338... -
Page 42: System Drawings
ADI LT boiler - Technical Manual Page 15.7.6 System drawings Boiler Controller Water collector or water manifold Thermostat D.H.W.S. buffer vessel Temperature sensor Plate heat exchanger Pressure switch Boiler circulation pump Mesh filter Manometer Closed expansion vessel Thermometer Non-return valve... - Page 43 ADI LT boiler - Technical Manual Page System drawing of heating circuits System drawing of one boiler and only D.H.W.S. L338 11/2011...
- Page 44 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 Ver comentario en apartado correspondiente. L338 11/2011...
- Page 45 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.
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Page 46: Before The Start-Up
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. -
Page 47: The Boiler Control Unit And Operating Cycle
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. -
Page 48: Gas - Air Adjustments
ADI LT boiler - Technical Manual Page 16.3 GAS - AIR ADJUSTMENTS All the boilers are tested in our factory and every one is supplied with a table indicating the combustion figures. Both the start-up and the maintenance must be realized by authorized technical staff. - Page 49 Page h) To vary CO (to vary the gas flow) for models ADI LT 250 and higher: turn (with a key HEX3) the adjustment wheel positioned in the higher part of the gas valve, with the boiler in front: - By turning counter clockwise the gas flow increases (and so CO...
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Page 50: Change Of Fuel: From Propane Gas To Natural Gas
ADI LT boiler - Technical Manual Page 16.3.2 Change of fuel: from Propane gas to Natural gas In order to change fuel, it is sufficient to adjust the boiler combustion, with the new fuel, to the correct parameters either for Natural Gas or for Propane Gas. - Page 51 (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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Page 52: Position Of Probes And Sensors
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). -
Page 53: Combustion Data
ADI LT boiler - Technical Manual Page 17.2 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... -
Page 54: Boiler Guarantee
Mhs Boilers will send its technical staff according to its own internal organization planning. 7. The parts replaced under guarantee will remain property of MHS Boilers, and the user is obliged to return them to MHS Boilers free of charges within a maximum period of 7 days, otherwise the spare parts provided will be invoiced. - Page 55 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 MHS Boilers. L338 11/2011...
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Page 56: Appendix I: List Of Error Codes
ADI LT boiler - Technical Manual Page 19. APPENDIX I: LIST OF ERROR CODES DIAGNOSIS Alba_Nr Diagn_Nr 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 ) - Page 57 ADI LT boiler - Technical Manual Page DIAGNOSTICO DIAGNOSTICO Alba_Nr Alba_Nr Diagn_Nr Diagn_Nr TEXTO TEXTO REACCION REACCION Complemento Complemento Error of software µC2 Lock-out - reset Failure of software µC2 "LmodZL_QAA (608)" is higher than "LmodZL (38)" Lock-out - reset "LmodZL_QAA"...
- Page 58 ADI LT boiler - Technical Manual Page DIAGNOSIS DIAGNOSIS Alba_Nr Alba_Nr Diagn_Nr Diagn_Nr TEXT TEXT REACTION REACTION Complementary Complementary APS (air pressure switch) does not open if it turns off (¿contactos LP does not open with the boiler stopped (¿contactos LP does not open when the boiler stops (¿contactos...
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