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Summary of Contents for Unical XC-K3 116
- Page 1 XC-K3 INSTALLATION AND MAINTENANCE INSTRUCTIONS...
- Page 2 Note: Control panel is not included, therefore for schemes connection and programming refer to instruction booklet supplied with the panel (optional) https://www.unicalag.it/catalogo-prodotti/caldaie-profes- sionali-300/6242/controlli-e-pannelli-comando https://www.unicalag.it/prodotti/professionale-300/commercial-condensazione-inox/341/xc-k 3 Provisions for proper disposal of the product After decommissioning, this appliance must not be disposed of as mixed urban waste. Separate waste collection is mandatory for this type of waste, in order to allow the recovery and reuse of the materials making up the appliance.
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Page 3: Table Of Contents
Attention: this manual contains instructions for the exclusive use of the professionally qualified installer and/or maintenance technician in compliance with current legislation. The user is NOT qualified to intervene on the boiler. The manufacturer will not be held liable in case of damage to persons, animals or objects resulting from failure to comply with the instructions contained in the manuals supplied with the boiler. -
Page 4: Symbols Used In The Manual
Any other use must be considered improper. For any damage resulting from improper use, UNICAL AG S.p.A. assumes no responsibility. Use according to the intended purposes also includes strict compliance with the instructions in this manual. 1.4 - INFORMATION FOR THE SYSTEM MANAGER The user must be instructed concerning the use and operation of his heating system, in particular: •... -
Page 5: Safety Warnings
1.5 - SAFETY WARNINGS ATTENTION! The appliance must not be used by children. The appliance may be used by adults and only after carefully reading the operating instructions manual for the user. Children must be supervised so they do not play or tamper with the appliance. ATTENTION! The appliance must be installed, adjusted and maintained by professionally qualified personnel, in com- pliance with the standards and provisions in force. -
Page 6: Technical Data Plate
1.6 - TECHNICAL DATA PLATE The technical data plate is adhesive and is included in the document case; it must be applied by the installer on the outside of the casing. The serial number of the boiler is on the riveted plaque on the front plate of the body (front right bottom side). The CE marking certifies the compliance of the equipment with the essential safety requirements defined in the directives and applicable... -
Page 7: General Warnings
Any repairs must be performed solely by personnel authorised by and maintenance safety. Unical using original spare parts only. Failure to comply with the above can jeopardise the safety of the appliance. Keep the booklet with care for further consultation. -
Page 8: Technical Features And Dimensions
TECHNICAL FEATURES AND DIMENSIONS NOTE! 2.1 - TECHNICAL FEATURES Further details in the section ‘‘Technical Information’’ on the boiler page of the www.unicalag.it website Rbt T2 Rat T3 M T1 Smoking section tubes N° Description Furnace flame sight glass Note: For operation with oil burner, when ordering Door with flame sight glass specify it (for OIL burner). -
Page 10: Dimensions
2.3 - DIMENSIONS XC-K3 116 - 125 FRONT VIEW BACK VIEW UPPER VIEW Rat T3 M T1 Rbt T2 DIMENSIONS [mm] Chim XC-K Furnace Depth Width Height connection Ø Ø f 1532 1073 1002 1532 1073 1002... - Page 11 SIDE VIEW SECTION SIDE VIEW WITH CASING CONNECTIONS Weight XC-K T1 (M) T2 (R) T3 (R) T5 (Sc) T6 (Ø p) T7 (S) T8 (Scond) inch inch inch [mm] [mm] [mm] inch G 2’’ G 2’’ G 2’’ G1 ¼’’ G 1’’...
- Page 12 XC-K3 300 FRONT VIEW BACK VIEW UPPER VIEW Rat T3 M T1 Rbt T2 DIMENSIONS [mm] XC-K Chimney Furnace Depth Width Height connection Ø Ø f 1758 1174 1080 1000 950 1243 1132 1922 1214 1120 1110 1060 1338 1230...
- Page 13 SIDE VIEW SECTION SIDE VIEW WITH CASING CONNECTIONS Weight XC-K T1 (M) T2 (R) T3 (R) T5 (Sc) Ø p T7 (S) T8 (Scond) inch inch [mm] [mm] [mm] inch DN 65 DN 65 DN 65 G1 ½’’ G 1’’ DN 80 DN 80 DN 80...
- Page 14 XC-K3 348 - 400 FRONT VIEW BACK VIEW UPPER VIEW Rat T3 M T1 Rbt T2 DIMENSIONS [mm] Chimney XC-K Furnace Depth Width Height con-nection Ø Ø f 2283 1575 1480 1110 1060 1338 1232 2283 1575 1480 1110 1060 1338 1232...
- Page 15 SIDE VIEW SECTION SIDE VIEW WITH CASING CONNECTIONS Weight XC-K T1 (M) T2 (R) T3 (R) T5 (Sc) Ø p T7 (S) T8 (Scond) inch [mm] [mm] [mm] inch DN 80 DN 80 DN 80 G2’’ G 1’’ DN 80 DN 80 DN 80 G2’’...
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Page 16: Operating Data
2.4 - OPERATING DATA Data relating to gas operation. In case of operation with diesel or bio- gas, contact our technical services. Modelli: XC-K 3 Nominal heat output (80-60°C) (80-60°C) [kW] 112,1 114,1 182,5 276,4 340,8 368,3 Nominal heat output (80-60°C) (50-30°C) [kW] 122,8 125,0... - Page 17 Model: XC-K3 Element Symbol Unit Effective nominal output Prated Seasonal energy efficiency of ƞs central heating Season efficiency class for heating For space heating boilers and combination boilers: useful heat output Effective heat output with high temperature capacity 112,1 114,1 182,5 276,4 340,8...
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Page 18: Installation Instructions
INSTALLATION INSTRUCTIONS 3.1 - GENERAL WARNINGS standards and regulations in force. Only after this check can the fitting between the boiler and chimney be mounted; ATTENTION! This boiler is intended solely for the use for which it was expressly designed. Any other use is to be considered improper and there- fore dangerous. -
Page 19: Packaging
Keep the packaging material (plastic bags, etc.) out of the reach of children as they are potential sources of danger. Unical will not be held liable for damage to persons, animals or objects due to failure to comply with the above instruction. -
Page 20: Positioning In Boiler Room
3.4 - POSITIONING IN THE BOILER ROOM Rispettare le minime distanze di ingombro Boielr must be installed in a room that complies with the safety per poter eseguire le operazioni di nor- regulations in force in the country of destination, with adequa- male manutenzione e pulizia. -
Page 21: Burner
3.5 - BURNER Flames which are too short cause overheating in the front of The burners operating with the XC-K3 boilers must have the EC the furnace and combustion products, not sufficiently cooled, certification comply with the local and / or national regulations entering the smoke pipes at too high temperatures can seriously in force published in the official journal. -
Page 22: Connecting Flame Sight Glass To Burner
WARNING! If there is an adapter flange for the door / burner cou- The seat of the burner nozzle must be as pre- pling, make sure that the flue gaskets are installed on cise as possible to avoid backfires or heat both coupling surfaces. -
Page 23: Furnace Door Adjustment, Opening And Closing
3.6 - FURNACE DOOR: ADJUSTMENT, OPENING AND CLOSING 3.6.1 - XC-K 3 BOILERS On the door are possible the following adjustments model by model XC-K 3 116 ÷ 200 only adjustment For all these models, the door is hinged and fixed according XC-K 3 300 ÷... -
Page 24: Connection
Incorrect in- and cause noise during operation. stallation can cause damage to persons, animals Unical will not be held liable for damage to and objects for which the manufacturer cannot be persons, animals or objects due to failure to held responsible. -
Page 25: Connecting Boiler To System
3.8.1 - CONNECTING BOILER TO SYSTEM Attention! Before connecting the boiler to the heating system, thoroughly clean the piping with an Provide a drain pipe with a funnel and a siphon leading to an appropriate product in order to eliminate appropriate drainage at the heating safety valve. - Page 26 3.9 - CONDENSATE DISCHARGE Condensation drain Danger! The boiler, during the combustion process, produces conden- Before commissioning the appliance: sation that, through pipe “A”, flows into the trap. - check that the trap is assembled The condensation that forms inside the boiler flows into a suitable of the siphon (H) - fill the trap and check that drain via pipe “B”.
- Page 27 3.9.1 - SAFETY ITEMS ATTENTION! a flow switch or differential pressure switch must be mounted and connected, which pre- vents the burner from starting in the event of lack of water circulation. 3.10 - FILLING AND EMPTYING THE SYSTEM When all system connections have been com- pleted, the circuit can be filled.
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Page 28: Assembling Casing
3.11 - ASSEMBLING CASING Tabella mantelli per modello n. piece n. piece (vedere istruzioni 00340613 contenute side casing side casing back casing XC-K 3 nel kit montaggio mantellature 00473269) Terminato il montaggio delle mantellature, fissare le targhette dati di caldaia ed installazione al pannello laterale dopo aver sgrassato la parte interessata con apposito solvente. -
Page 29: Electrical Connections
3.12 - ELECTRICAL CONNECTIONS General warnings 230V electric power supply connection The electrical safety of the appliance is guaranteed only when Boiler installation requires connection to a 230 V - 50 Hz electric it has been properly connected to an efficient earthing system mains: this connection must performed up to standard as carried out as intended by safety standards in force: pipes of intended by current IEC regulations. -
Page 30: Commissioning
3.13 - COMMISSIONING Commissioning must be done by professionally qualified personnel. Unical will not be held liable for damage to persons, animals or objects due to failure to comply with the aforesaid instructions. Before commissioning the boiler, check that: does the installation meet the specific standards and regulations in force, both relating to the... -
Page 31: Adjusting The Burner
3.14 - ADJUSTING THE BURNER IN CASE OF LOW NOX BURNERS, The following instructions are intended use FLAME INVERSION KIT for Low NOx exclusively for service personnel authorised by the burners supplied by the burner manufacturer of the burner. manufacturer. Note: FOR MAINTENANCE MANAGER The boiler work properly, if calibrating the bur- ner to a minimum power (Qmin) >... -
Page 32: Inspections And Maintenance
To assure long-term functioning of your appliance OBBLIGO! and to avoid altering its approved status, only indossare guanti protettivi original Unical spare parts must be used. Before proceeding with maintenance, always perform the following operations: Inspections and maintenance performed •... -
Page 33: Boiler Body Maintenance
Boiler body maintenance Checking gasket status Check the status of the seal gaskets which must Danger! not show signs of deterioration; if so, they must Before performing any maintenance, make be replaced, using only original spare parts. sure the boiler and its components have cooled off. - Page 34 Rear door opening for maintenance operations - Remove the casings: - Remove the fixing nuts ‘‘1’’ of the rear door ‘‘3’’ rear, right side, left side and cover - Remove carefully door ’’ 3 ‘’ using the slide ‘’ 2 ‘’. - After maintenance operations, reassemble the rear door, (limit stop at 300 mm) checking correct tightening of the nuts ‘‘1’’, after a few...
- Page 36 - export@unical-ag.com - www.unical.eu Unical shall not be held liable for any inaccuracies due to transcription or printing errors. Furthermore, it reserves the right to modify its products / documentation as deemed necessary or useful, without affecting their essential features.
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