Unical XC-K oil 100 Installation And Maintenance Instruction Download

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ENGLISH

INSTALLATION AND MAINTENANCE INSTRUCTION

69 - 100 - 150 - 230 - 300 - 350 - 400 - 500

650 - 850 - 1000 - 1300 - 1550

XC-K oil

Summary of Contents for XC-K oil 100

Page 1: ...E N G L I S H INSTALLATION AND MAINTENANCE INSTRUCTION 69 100 150 230 300 350 400 500 650 850 1000 1300 1550 XC K oil ...

Page 2: ...urban waste It can be taken to a special recycling centre managed by the local authorities or to a dealer who offers this service Separate disposal of a domestic appliance avoids possible negative consequences for the environment and human health deriving from inappropriate waste handling and allows the recovery of the materials of which it is made in order to obtain significant energy and resourc...

Page 3: ...er to system 26 3 11 Filling the system 26 3 12 Connecting gas 27 3 13 Packaging 27 3 14 Assembling casing 28 3 15 Electrical connections 32 3 16 MODULATING MASTER panel board code 37892 33 3 17 Programming heating controllers with single boiler 33 3 18Hydraulic and electric system connection with panel board code 37892 37 3 19 Programming heating controllers with boilers in cascade 39 3 20MODULAT...

Page 4: ... also check the state of wear of the anode 1 4 Information for SYSTEM MANAGER The user must be instructed concerning the use and operation of his heating system in particular Deliver these instructions to the user as well as other documents concerning the appliance inserted in the bag contained in the packaging The user must keep this documentation so that it is available for further consultation ...

Page 5: ...affect the operating safety of the appliance Attention To tighten or loosen the screwed fittings use only appropriate fixed spanners Incompliant use and or inappropriate tools can cause damage e g water or gas leakage ATTENTION Indications for propane gas fired appliances Make sure that the gas tank has been deaerated before installing the appliance For state of the art deaeration of the tank cont...

Page 6: ...m side The CE marking certifies the compliance of the equipment with the essential safety requirements defined in the directives and applicable European regulations and that its functioning satisfy applicable technical standards The CE marking is affixed to each piece of equipment with an appropriate label The CE declaration of conformity issued in accordance with international standards by the ma...

Page 7: ...ct the appliance from the energy mains by acting on the switch of the system and or through the specific cut off devices Not obstruct the terminals of the intake exhaust ducts In case of failure and or malfunctioning of the appliance switch it off and do not try to repair it or intervene on it directly Contact only personnel qualified in compliance with law Any repairs must be performed solely by ...

Page 8: ...d while the burner is operating within the power range of the boiler For the value of this pressure see the tables on pages 11 13 in the column Flue gas side pressure drops The chimney must be calculated so that no positive pressure is detected at its base 2 1 2 3 6 5 4 M R at R bt 2 1 TECHNICAL FEATURES NOTE Further details in the section Technical Information on the boiler page of the www unical...

Page 9: ...ll be placed within their smoke pipes with respect to the front edge as per below drawing Using the boiler to minimum power the flue gas temperature fig 1a must not be less than those indicated on page 14 and 15 Otherwise first contact our After Sales Service make sure that all the turbolators are present in smoke pipes At the first commissioning the burner must be carried out under the responsibi...

Page 10: ...mensions for boiler room access fig 2 T7 Øi mm 182 A D C Q B F E R G G H H T5 T2 T4 T4 T2 T3 T7 3 T7 T8 T8 T1 T5 40 T6 1 2 T6 O N M P T1 T3 I L T8 Øe mm 40 Max Temperature allowable C 100 1 Panel board 2 Flame sight glass T1 C H flow T2 Low temperature C H return T3 High temperature C H return T4 Expansion vessel connection T5 Boiler drain T6 Burner connection T7 Chimney connection T8 Condensation...

Page 11: ...52 302 302 45 60 60 65 65 S mm 3 Q H T6 A D C T8 G T7 T5 R H T6 T2 T3 T1 T4 B N M L I F E T8 T5 S O T2 T1 T4 T3 G T7 P 1 2 T8 Øe mm 40 40 40 40 40 fig 5 fig 6 fig 7 Boiler capacity l Maximum operating pressure boiler bar Weight kg Minimum dimensions for boiler room access Max Temperature allowable C CONNECTIONS DETAIL FOR DOOR DRILLING XC K oil 150 DETAIL FOR DOOR DRILLING XC K oil 230 300 DETAIL ...

Page 12: ... UNI 2276 PN6 T5 ISO 7 1 T6 Ø mm DN 125 DN 125 DN 150 DN 150 DN 200 DN 200 DN 125 DN 125 DN 150 DN 150 DN 200 DN 200 DN 65 DN 65 DN 80 DN 80 DN 100 DN 100 Rp 1 Rp 1 Rp 1 Rp 1 Rp 1 Rp 1 270 270 320 320 320 320 500 650 850 1000 1300 1550 XC K oil Modell 625 664 1107 1157 1936 1904 6 6 6 6 6 6 1376 1613 2158 2443 3458 3765 T7 Øi mm 352 352 402 402 452 452 65 65 55 55 95 95 S mm T8 Øe mm 40 40 40 40 4...

Page 13: ... 97 132 206 308 426 499 587 735 954 1204 1468 1908 2275 Combustion Efficiency 80 C 60 C 98 4 98 4 98 4 98 4 98 4 98 4 98 5 98 5 98 5 98 5 98 5 98 5 98 5 Combustion Efficiency 50 C 30 C 99 0 99 0 99 0 99 0 99 0 99 0 99 0 99 0 99 0 99 0 99 0 99 0 99 0 Heat loss at shell 80 C 60 C 0 6 0 6 0 6 0 5 0 5 0 4 0 3 0 3 0 3 0 3 0 3 0 3 0 3 Heat loss at shell 50 C 30 C 0 5 0 5 0 5 0 4 0 4 0 3 0 2 0 2 0 2 0 2 ...

Page 14: ... 707 918 1158 1412 1835 2188 Combustion Efficiency 80 C 60 C 98 4 98 4 98 4 98 4 98 5 98 5 98 5 98 5 98 5 98 5 98 5 98 5 98 5 Combustion Efficiency 50 C 30 C 99 0 99 0 99 0 99 0 99 0 99 0 99 0 99 0 99 0 99 0 99 0 99 0 99 0 Heat loss at shell 80 C 60 C 0 6 0 6 0 6 0 5 0 5 0 4 0 3 0 3 0 3 0 3 0 3 0 3 0 3 Heat loss at shell 50 C 30 C 0 5 0 5 0 5 0 4 0 4 0 3 0 2 0 2 0 2 0 2 0 2 0 2 0 2 Heat loss at ch...

Page 15: ...ture capacity Tr 30 C P1 kW 20 9 27 5 42 8 64 23 88 7 104 122 4 Performance at 30 of the rated heat output with low temperature capacity Tr 30 C ƞ1 93 7 93 7 93 7 93 7 93 7 93 7 93 7 Boiler with output range adjustment YES NO NO NO NO NO NO NO NO Auxiliary electricity consumption With a full load elmax kW 0 390 0 390 0 470 0 600 0 600 0 600 1 400 With a partial load elmin kW 0 0 0 0 0 0 0 Standby ...

Page 16: ...the rated heat output with low temperature capacity Tr 30 C P1 kW Performance at 30 of the rated heat output with low temperature capacity Tr 30 C ƞ1 Boiler with output range adjustment YES NO Auxiliary electricity consumption With a full load elmax kW With a partial load elmin kW Standby mode PSB kW Other elements Heat dispersion on standby Pstb kW Nitrogen oxides emissions NOx Mg kWh For mixed h...

Page 17: ... 30 C P1 kW 21 9 28 9 44 9 67 3 93 0 109 0 128 2 Performance at 30 of the rated heat output with low temperature capacity Tr 30 C ƞ1 98 2 98 2 98 2 98 2 98 2 98 2 98 2 Boiler with output range adjustment YES NO NO NO NO NO NO NO NO Auxiliary electricity consumption With a full load elmax kW 0 350 0 350 0 350 0 530 0 600 0 600 0 700 With a partial load elmin kW 0 0 0 0 0 0 0 Standby mode PSB kW 0 0...

Page 18: ...the rated heat output with low temperature capacity Tr 30 C P1 kW Performance at 30 of the rated heat output with low temperature capacity Tr 30 C ƞ1 Boiler with output range adjustment YES NO Auxiliary electricity consumption With a full load elmax kW With a partial load elmin kW Standby mode PSB kW Other elements Heat dispersion on standby Pstb kW Nitrogen oxides emissions NOx Mg kWh For mixed h...

Page 19: ... accommodate several utilities according to specific standards and regulations in force Only after this check can the fitting between the boiler and chimney be mounted Attention If there is dust and or if there are aggressive corrosive vapours present in the installation room the appliance must be protected suitably and must be able to operate independently from the air in the room Attention The a...

Page 20: ... shifting it on rollers underneath the sturdy base longerons If necessary for clearance purposes the door and 3 5 BURNER The burners operating with the XC K boilers must have the EC certification and comply with Gas appliance directive 2009 142 EEC EMC Directive Electromagnetic Compatibility 2014 30 UE They must also be approved according to the specifications EC 1 2009 UNI EN 676 air blown burner...

Page 21: ...ep it from blackening If the cooling tube is not connected to the sight glass it could break ATTENTION the flame sight glass can be very hot therefore pay the utmost attention 3 5 2 INSTALLING THE BURNER The burner must be mounted to the door of the boiler guaranteeing perfect sealing of the combustion products The burner is supplied with a piece of ceramic fiber cord which must be placed on the b...

Page 22: ...w the hinge which the door turns on B Crosswise rotation loosening the hinges fixed on the front plate of the boiler and moving them sideways C Axial rotation screwing different tightening nuts 3 7 2 XC K oil 850 XC K 1000 BOILERS For all these models the door is hinged and fixed according to the layout in fig 15 In these cases the two hinges on the left are normally used as rotation hinges from r...

Page 23: ... side The following adjustments can be made on the door of these boiler models A Vertical adjustment by acting on the nut of the upper hinge pin which the door turns on B Crosswise rotation loosening the hinges fixed on the front plate of the boiler and moving them sideways C Axial rotation screwing different tightening nuts fig 16 C C C C B A C B A 3 7 4 IMPORTANT NOTE Before opening the door of ...

Page 24: ...ion products which must be filled after assembly and must remain at least 25 mm high with the boiler running see fig 17 Donotdischargecondensationthroughgutterdrainpipesduetothe risk of turning into ice and the deterioration of the materials usually used to make the drainpipes consult local hygiene regulations The drain fitting must be visible Due to the acidity level of the condensation pH from 3...

Page 25: ...ion If this precaution is not taken triggering of the safety valve can cause damage to persons animals and objects for which the manufacturer cannot be held responsible Connection of expansion vessel XC K boilers are suitable for operating with forced water circulation both with the expansion vessel opened or closed An expansion vessel is always necessary to compensate the increase in water volume...

Page 26: ...al tension points while connecting gas to avoid the risk of leakage Perceiving the smell of gas a Do not turn electric switches on or off use a telephone or any other object which can create sparks b Immediately open doors and windows to create an air current to air out the room c Shut the gas cocks d Request the intervention of professionally qualified personnel The supply pipes must have a cross...

Page 27: ... and insulation are included in separate cardboard packs The panel and accessories are inside the combustion chamber Before starting installation make sure that the length and width of the boiler body received correspond respectively to the dimensions P Q and R of the boiler you have ordered provided on the previous tables and that the boxes containing the casing or part of it are marked as in the...

Page 28: ...eased the relevant part with the specific solvent The plates are included in the document envelope Assembly sequence Ref fig 18 21 A Mount the insulation jackets pos 1 and 2 of the boiler body and secure the 2 edges with the elastic straps pos 3 supplied in the accessory box hooking them to the external fabric part of the insulation B Mount the rear insulation pos 4 C Open the boiler door and moun...

Page 29: ...n the side and insert the electric inlet cables and the outlet probe capillaries through the slots at the base Fit the panel board to the upper panel pos 9 Fit the upper panel pos 9 complete with panel board to the two sides of the casing G Insert into the conduits the bulbs of the instruments as indicated in fig 21 and depending on the panel board installed on the boiler the probes as illustrated...

Page 30: ... having removed the two screws on the side and insert the electric inlet cables and the outlet probe capillaries through the slots at the base Fit the panel board to the upper panel pos 13 Fit the upper panel pos 13 complete with panel board to the two sides of the casing H Insert into the conduits the bulbs of the instruments as indicated in fig 21 and depending on the panel board installed on th...

Page 31: ...t touch the appliance with wet and or moist parts of the body and or in bare feet do not pull the electric cables do not leave the appliance exposed to atmospheric agents rain sun etc unless expressly designed do not allow children or unskilled persons to use the appliance 230V electric power supply connection The electrical connections are illustrated in chapters 3 16 3 17 3 18 3 19 and 3 21 for ...

Page 32: ...p switch 21 Pz2 mixed zone system pump switch 33Working thermostat 35Safety thermostat The heating controller probes boiler storage tank external flow are included in the supply the ambient probes 1 and 2 are optional the mixer valve and relative control motor are not included in the supply Should ambient probes be mounted optional the room temperature will only be determined with the boiler curve...

Page 33: ... 110 C MAX T HS2 85 C 01 08 BOILER BUS ID 10 C 80 C MIN T HS2 10 C 0 11 VOLTAGE CURVE 11 0 00 10 00V CURVE 11 U2 0V 0 00 10 00V CURVE 11 U2 10V 00 120 C CURVE 11 T1 0 C 00 120 C CURVE 11 T2 100 C 0 00 10 00V CURVE 11 UA 0V 10 C 85 C T WARM UP 10 DISPLAY ONLY BOILER DETECTED 00 1000kW OUTPUT LEVEL see note 00 01 OFF ON NEW CONFIGURATION 00 100 MINIMUM MODULATION CASCADE 00 00 08 DHW LEVELS 00 K CON...

Page 34: ...ual values Value range Description DOMESTIC HOT WATER PRODUCTION 00 01 OFF ON CHARGE PUMP 01 ON 00 01 02 03 PARALLEL PUMP RUNNING 01 00K 50K T DHW 20K 5K 30K DHW HYSTERESIS 5 degrees 00 min 30 min DHW FOLLOWUP 00 min 00 01 OFF ON THERMOSTAT INPUT 00 OFF 00 01 OFF ON THERMOSTAT FUNCTIONING 00 OFF Exit level using RETURN 00 01 OFF ON LOAD THROUGH 00 OFF Default Individual values Value range Descript...

Page 35: ...N 00 00 01 02 00 03 MF 1 4 T NOM 30 C 5 25 MF 1 4 HYSTERESIS 5 C 5 25 F 15 FUNCTION 0 Exit level using RETURN C OK 1 2 1 2 1s C C C BUS ID 1 2 11 Mod Run 2 1 PARAMETERS PROGRAMMABLE BY TECHNICIAN FOR HEATING CONTROLLER Lago Basic 0201 RV 1 1 2 3 1 1 Switch selector to burner 1 2 Press OK 2 3 Turn the knob 3 until mm appears on the display modulating burner 4 Press OK 2 2 1 Switch the selector 1 to...

Page 36: ...ow Rat HIGH temperature return Rbt LOW temperature return Vmix2 zone mixer valve motorised Pz1 HIGH TEMPERATURE zone heating system pump Pz2 LOW TEMPERATURE zone heating system pump VE expansion vessel IR AT HIGH TEMPERATURE heating system distribution IR BT LOW TEMPERATURE heating system distribution Ps DHW recirculation pump Pb DHW production charge pump SPF storage tank probe KF E8 5064 heat co...

Page 37: ...ank charge pump for DHW production switches on automatically and will only switch off when the temperature set on the heating controller has been reached The panel is set up to manage the modulating burners With this system configuration the heat controller is capable of regulating direct zone system the control unit commands the system pump The room temperature is controlled by the programming cu...

Page 38: ...OR HEATING CONTROLLER type E8 5064 00 01 OFF ON TEMPERATURE MASTER 30 C 110 C MAX T HS1 MAX T HEADER 10 C 80 C MIN T HS1 MIN T HEADER 01 ON 85 C 10 C 0 01 BUS CONNECTION 01 00 01 OFF ON BUS SUPPLY 01 ON 2K 20K HYSTERESIS 00 30 min HYSTERESIS TIME 00 01 02 MINIMUM LIMIT 5 00 min 00 30 C 110 C MAX T HS2 85 C 01 08 BOILER BUS ID 10 C 80 C MIN T HS2 10 C 0 11 VOLTAGE CURVE 11 0 00 10 00V CURVE 11 U2 0...

Page 39: ...oiler at 1 in the second leave dashes Set value of first stage of second boiler at 1 in the second leave dashes If there are more than 2 boilers in cascade enable the first stages of the boilers in cascade See E8 5064 heating controller instruction book Default Individual values Value range Description DOMESTIC HOT WATER PRODUCTION CHARGE PUMP PARALLEL PUMP RUNNING T DHW DHW HYSTERESIS 5 degrees D...

Page 40: ...TEMPERATURE MIN FLOW TEMPERATURE FROST PROTECTION TEMP OUTSIDE TEMP DELAY HEATING SLOPE DISTANCE B HEAT SINK Exit level using RETURN Default Individual values Value range Description SOLAR M F MF 1 4 FUNCTION MF 1 4 T NOM MF 1 4 HYSTERESIS F 15 FUNCTION Exit level using RETURN 20 C 110 C 80 C 10 C 110 C 30 C 15 C 5 C 0 C 0 00 24 00 0 00 00K 50K 5 C 00 01 OFF ON 01 00 04 0 00 03 0 5 25 18 5 25 12 2...

Page 41: ...burner 1 2 Press OK 2 3 Turn the knob 3 until mm appears on the display 4 Press OK 2 2 1 Switch the selector 1 to the symbol of the mixer valve 2 Press OK 2 3 Turn the knob 3 until the number 15 appears on the display burner servomotor time 4 Press OK 2 3 1 Switch the selector 1 to BUS ID 2 Press OK 2 3 Turn the knob 3 until the number 1 appears on the display boiler ID 4 Press OK 2 Turn the knob ...

Page 42: ...erature of the boiler n 2 is regulated by the heating controller to achieve this the thermostat must be placed at maximum full scale pos 32 Modulation of the burner will be managed by heat control The electric power line of the boiler s control board must have a switch with protective fuses For use of the panel board see the system manager instruction booklet As far as the practical connection and...

Page 43: ...burner 1 2 Press OK 2 3 Turn the knob 3 until mm appears on the display 4 Press OK 2 2 1 Switch the selector 1 to the symbol of the mixer valve 2 Press OK 2 3 Turn the knob 3 until the number 15 appears on the display burner servomotor time 4 Press OK 2 3 1 Switch the selector 1 to BUS ID 2 Press OK 2 3 Turn the knob 3 until the number 2 appears on the display boiler ID 4 Press OK 2 Turn the knob ...

Page 44: ...RE heating system distribution fig 28 Ps DHW recirculation pump P1 circulation pump Pb DHW production charge pump SPF storage tank probe KF E8 5064 heat control boiler probe KF 1 Lago Basic 0201 RV 1 heat control boiler probe VF flow probe AF external probe P1 C OK 1 2 1 2 1s C C C BUS ID 1 2 11 Mod Run 2 1 31 42 11 4 1 1 2 1 3 3 2 Ps PRODUTTORE ACQUA CALDA SANITARIA Pb Pz1 P1 IR BT Pz2 Vmix2 IR A...

Page 45: ...eached The storage tank charge pump for DHW production switches on automatically and will only switch off when the temperature set on the heating controller has been reached The panel is set up to manage the modulating burners With this system configuration the heat controller is capable of regulating direct zone system the control unit commands the For practical connections both electrical and of...

Page 46: ... switch 21 Pz2 mixed zone system pump switch 33Working thermostat 35Safety thermostat The heating controller probes boiler storage tank external flow are included in the supply the ambient probes 1 and 2 are optional the mixer valve and relative control motor are not included in the supply Should ambient probes be mounted optional the room tem perature will only be determined with the boiler curve...

Page 47: ...MODULATION CASCADE DHW LEVELS CONTROL VARIANCE DISPLAY NOMINAL OUTPUT INDEX DISPLAY SWITCH VALUE DISPLAY REMAINING min BLOCK TIME DISPLAY MAXIMUM BOILER TEMPERATURE BOILER DYNAMICS UPWARD BOILER DYNAMICS DOWNWARD RESET TIME MODULATION MAX MODULATION MIN MIN MODULATION HS MODULATION DHW BOILER SEQUENCE 1 BOILER SEQUENCE 2 0000 9999 0000 9999 0000 00 01 015 01 00 01 016 02 00 01 disins ins 01 ON 00 ...

Page 48: ...degrees DHW FOLLOWUP THERMOSTAT INPUT THERMOSTAT FUNCTIONING Exit level using RETURN LOAD THROUGH Default Individual values Value range Description HEATING CIRCUIT 1 HEATING CIRCUIT FUNCTION PUMP MODE MIXER OPEN MIXER CLOSED MAX FLOW TEMPERATURE MIN FLOW TEMPERATURE FROST PROTECTION TEMP OUTSIDE TEMP DELAY HEATING SLOPE DISTANCE B HEAT SINK Exit level using RETURN SEQUENCE MODE 00 min 30 min 00 mi...

Page 49: ...d Run 2 1 PARAMETERS PROGRAMMABLE BY TECHNICIAN FOR HEATING CONTROLLER Lago Basic 0201 RV 1 1 2 3 1 1 Switch selector to burner 1 2 Press OK 2 3 Turn the knob 3 until 2 appears on the display dual stage burner 4 Press OK 2 2 1 Switch the selector 1 to the symbol of the mixer valve 2 Press OK 2 3 Turn the knob 3 until the number 15 appears on the display 4 Press OK 2 3 1 Switch the selector 1 to BU...

Page 50: ... a motorised mixer valve domestic hot water production Key Vmix2 zone mixer valve motorised Pz1 HIGH TEMPERATURE zone heating system pump Pz2 LOW TEMPERATURE zone heating system pump VE expansion vessel IR AT HIGH TEMPERATURE heating system distribution IR BT LOW TEMPERATURE heating system distribution Ps DHW recirculation pump Pb DHW production charge pump SPF storage tank probe KF E8 5064 heat c...

Page 51: ...nk charge pump for DHW production switches on automatically and will only switch off when the temperature set on the heating controller has been reached The panel is set up to manage the modulating burners With this system configuration the heat controller is capable of regulating direct zone system the control unit commands the system pump The room temperature is controlled by the programming cur...

Page 52: ...MIN T HS1 MIN T HEADER BUS CONNECTION BUS SUPPLY HYSTERESIS HYSTERESIS TIME MINIMUM LIMIT MAX T HS2 BOILER BUS ID MIN T HS2 VOLTAGE CURVE CURVE 11 U2 CURVE 11 U2 CURVE 11 T1 CURVE 11 T2 CURVE 11 UA T WARM UP DISPLAY ONLY BOILER DETECTED OUTPUT LEVEL see note NEW CONFIGURATION MINIMUM MODULATION CASCADE DHW LEVELS CONTROL VARIANCE DISPLAY NOMINAL OUTPUT INDEX DISPLAY SWITCH VALUE DISPLAY REMAINING ...

Page 53: ...scade enable the first and second stages of the boilers in cascade See E8 5064 heating controller instruction book Default Individual values Value range Description DOMESTIC HOT WATER PRODUCTION CHARGE PUMP PARALLEL PUMP RUNNING T DHW DHW HYSTERESIS 5 degrees DHW FOLLOWUP THERMOSTAT INPUT THERMOSTAT FUNCTIONING Exit level using RETURN LOAD THROUGH Default Individual values Value range Description ...

Page 54: ...TEMPERATURE MIN FLOW TEMPERATURE FROST PROTECTION TEMP OUTSIDE TEMP DELAY HEATING SLOPE DISTANCE B HEAT SINK Exit level using RETURN Default Individual values Value range Description SOLAR M F MF 1 4 FUNCTION MF 1 4 T NOM MF 1 4 HYSTERESIS F 15 FUNCTION Exit level using RETURN 20 C 110 C 80 C 10 C 110 C 30 C 15 C 5 C 0 C 0 00 24 00 0 00 00K 50K 5 C 00 01 OFF ON 01 00 04 0 00 03 0 5 25 18 5 25 12 2...

Page 55: ...burner 1 2 Press OK 2 3 Turn the knob 3 until mm appears on the display 4 Press OK 2 2 1 Switch the selector 1 to the symbol of the mixer valve 2 Press OK 2 3 Turn the knob 3 until the number 15 appears on the display burner servomotor time 4 Press OK 2 3 1 Switch the selector 1 to BUS ID 2 Press OK 2 3 Turn the knob 3 until the number 1 appears on the display boiler ID 4 Press OK 2 Turn the knob ...

Page 56: ...erature of the boiler n 2 is regulated by the heating controller to achieve this the thermostat must be placed at maximum full scale pos 32 Modulation of the burner will be managed by heat control The electric power line of the boiler s control board must have a switch with protective fuses For use of the panel board see the system manager instruction booklet As far as the practical connection and...

Page 57: ...to burner 1 2 Press OK 2 3 Turn the knob 3 until 2 appears on the display dual stage burner 4 Press OK 2 2 1 Switch the selector 1 to the symbol of the mixer valve 2 Press OK 2 3 Turn the knob 3 until the number 15 appears on the display 4 Press OK 2 3 1 Switch the selector 1 to BUS ID 2 Press OK 2 3 Turn the knob 3 until the number 2 appears on the display boiler ID 4 Press OK 2 Turn the knob 1 b...

Page 58: ...high temperature zone 1 low temperature zone controlled by a motorised mixer valve domestic hot water production Boiler n 1 is fitted with a panel board code 37892 boiler n 2 is fitted with a panel board code 37900 Key M flow Rat HIGH temperature return NOT USED Rbt LOW temperature return Vmix2 zone mixer valve motorised Pz1 HIGH TEMPERATURE zone heating system pump Pz2 LOW TEMPERATURE zone heatin...

Page 59: ...eached The storage tank charge pump for DHW production switches on automatically and will only switch off when the temperature set on the heating controller has been reached The panel is set up to manage the modulating burners With this system configuration the heat controller is capable of regulating direct zone system the control unit commands the system pump The room temperature is controlled b...

Page 60: ...ONS Information for system manager The system manager must be instructed concerning the use and operation of his heating system in particular Give the system manager the SYSTEM MANAGER OPERATING INSTRUCTIONS as well as the other appliance documents inserted in the envelope inside the packaging The system manager must keep this documentation for future consultation Inform the system manager about t...

Page 61: ...ulating an inspection or maintenance contract Inspections help to determine the actual status of the appliance and to compare it with the nominal status This is done through measuring controls and observation Maintenance is required to eliminate any differences between the actual status and the nominal status This is normally done by cleaning setting and replacing individual components subject to ...

Page 62: ...e parts Maintenance of burner Burner maintenance must be carried out by personnel authorised by its manufacturer or else the warranty shall be terminated Checking ignition electrode Burner maintenance must be carried out by personnel authorised by its manufacturer or else the warranty shall be terminated COMPONENT Safety thermostat System expansion vessel Door gaskets Smoke chamber gaskets Smoke t...

Page 63: ...63 ...

Page 64: ...rmore it reserves the right to modify its products as deemed necessary or useful without affecting their essential features 46033 casteldario mantova Italy tel 39 0376 57001 telefax 39 0376 660556 info unical ag com export unical ag com www unical eu AG S p A 00336839 1 st Edition 06 17 www unical eu ...

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