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Summary of Contents for Unical DIATHER Series
- Page 1 DĨATHER’ INSTRUCTIONS ON INSTALLATION, USE AND MAINTENANCE...
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Page 2: Data Plate
DATA PLATE Via Roma, 123 - 46033 Castel d Ario - Mantova - Italy ’ Modello Superficie riscaldata [m²] DIATHER’ 4000 Heating Surface Model Volume Totale V [I] Numero di Fabbrica A16U00XXX 2465 Serial Number Total Volume Press. max ammiss. Serp. PS [bar] Anno di Fabbricazione 2016 Max Design Coil Pressure... -
Page 3: Table Of Contents
1 GENERAL INFORMATION ....................................4 1.1 General warnings ......................................4 1.2 Symbols used in the manual ..................................4 1.3 Safety warnings ......................................5 2 TECHNICAL FEATURES AND DIMENSIONS ..............................6 2.1 General description of the range ................................... 6 2.2 Description of components ................................... 7 2.3 Control and safety devices .................................... -
Page 4: General Information
GENERAL INFORMATION 1.1 - GENERAL WARNINGS This document constitutes the Technical Manual of instal- ATTENTION! lation, use and maintenance of the DĨATHER type 3 effec- Incorrect installation, inadequate use and tive smoke passes diathermic oil generators, and it is an maintenance of the appliance can cause damage to persons or property, for which integral and essential part of the product. -
Page 5: Safety Warnings
1.3 - SAFETY WARNINGS Please strictly adhere to the safety warnings to avoid danger Attention and damage to people and property. Any electrostatic discharges may damage the electronic components. Addressees Before carrying out the works, discharge The following instructions are intended exclusively for special- the electrostatic charge to the ground. -
Page 6: Technical Features And Dimensions
TECHNICAL FEATURES AND DIMENSIONS 2.1 - GENERAL DESCRIPTION The DĨATHER model diathermic oil boilers are of the type with The rear flue gas casing is fixed to the generator by bolts, is four principle helical tube bundle, with execution in two concen- internally insulated with insulating concrete and is fitted with tric rings inserted in a fumes hermetically sealed sheet metal cleaning door. -
Page 7: Description Of Components
2.2 - DESCRIPTION OF COMPONENTS Inspection door Uscita fumi smoke chamber Control panel Quadro elettrico Cased body Corpo mantellato e coibentato and insulated Pressure gauge Manometro Pressure switch differential Pressostato differenziale Pressure gauge Manometro Front door Porta anteriore 2.3 - SAFETY DEVICES AND CONTROL The DIATHER generators are equipped with the following safety N°1 Thermoregulator placed on the flow pipe, for the ignition,... -
Page 8: System Accessories
2.4 - SYSTEM ACCESSORIES EXPANSION VESSEL SYSTEM LOADING UNIT In operation, the volume of oil in circulation varies due to the It consists in a gear pump coupled to an electric motor, com- temperature changes. plete with two-way steel valves. The increase in diathermic oil volume is around 7% for a tem- It must be placed in a position protected from rain and level with perature increase of 100°C. -
Page 9: Dimensions
2.5 - DIMENSIONS Flow Return Generator exhaust Flue gas exhaust Burner connection Model T1-T2 Diather Øe 1650 1190 1225 1060 1890 1310 1465 1060 2210 1310 1785 1240 2320 1510 1150 1060 1240 2450 1510 1270 1060 1260 2480 1520 1270 1060 1370... -
Page 10: Operation Data
2.6 - OPERATING DATA... -
Page 11: Installation Instructions
INSTRUCTIONS FOR INSTALLATION 3.1 - GENERAL WARNINGS Before connecting the generator, have profes- sionally qualified personnel: a) Thoroughly wash all the piping of the sys- ATTENTION! tem to remove any residues or impurities, The generator is intended solely for the use which could jeopardise proper operation for which it was expressly designed. -
Page 12: Supply Conditions
3.3 - SUPPLY CONDITIONS NOTE: The DĨATHER generators are supplied in monobloc version. The generators are normally supplied fully assembled. In particular cases, some units Upon receipt, after removing the packaging, check are supplied unassembled to avoid damage the contents are intact. during transport or handling. -
Page 13: Positioning In Boiler Room
3.5 - POSITIONING IN THE BOILER ROOM The generator must be installed in a room that respects the the highest walkway and the lowest obstacle of the room safety regulations in force in the country of destination, with roof and 1 metre between the highest point of the gener- adequately sized air vents. -
Page 14: Hydraulic System Features And Connections
3.6 - HYDRAULIC SYSTEM FEATURES AND CONNECTIONS The installer is responsible for selecting and installing the sys- The generator connections must not be stressed by the weight tem components, that must be done in a workmanlike manner of the system pipes: these must be supported and arranged so and in accordance with current legislation. -
Page 15: Fuel Supply
3.7 - FUEL SUPPLY Danger! Check that the fuel supply system is The gas connection must be carried out only equipped with the safety and control devic- by a qualified installer who must respect and es prescribed by current regulations. apply that foreseen by relevant laws in force in the local prescriptions of the supply com- If you smell gas:... -
Page 16: Burner Assembly
3.9 - ASSEMBLING THE BURNER ATTENTION! For the burner installation, the electrical connections and the The seat of the burner blast tube must be adjustments required, consult the instruction manual of the as precise as possible to avoid flashbacks burner itself. or heat returns that would make the burner Check that the correct burner has been chosen for the genera- connection plate red hot. -
Page 17: Furnace Door: Adjustment, Opening, Closing
3.10 - FURNACE DOOR: ADJUSTMENT, OPENING AND CLOSING Upon commissioning, to avoid damaging A) Adjustment in the vertical direction: by acting on the nut the refractory insulation, operate the burner of the hinge upper pin on which the door turns. at minimum capacity or, if this is not possi- ble, cause frequent stops to gradually heat B) Adjustment in the transverse direction: loosen the hinges... -
Page 18: Electric Control Board
3.12 - ELECTRICAL PANEL TEMPERATURA MANDATA OLIO TEMPERATURA RITORNO OLIO INTERRUTTORE GENERALE OIL DELIVERY TEMPERATURE OIL RETURN TEMPERATURE MAIN SWITCH ALLARME TERMICO RESET ALLARME RESET ALLARME RESET ALLARME RESET ALLARME TACITAZIONE SIRENA POMPE SICUREZZE IMPIANTO LIVELLO MIN. OLIO CIRCOLAZIONE OLIO TEMPERATURA OLIO ALARM THERMAL ALARM SAFETY... - Page 19 Key: MAIN SWITCH 14 CIRCULATION PUMP 1 (START-OFF-STOP) START = The pump starts running and gives consent to the OIL RETURN TEMPERATURE ALARM CIRCULATION OIL RESET burner ALARM TEMPERATURE OIL RESET OFF = The pump stops running when the oil’s temperature SILENCING BUZZER falls below of the minimum set temperature STOP = The pump stops running immediately...
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Page 20: Commissioning
3.13 - COMMISSIONING Preliminary checks before start-up The installation, operation and maintenance ATTENTION! must be carried out in compliance with the ANY INTERVENTION ON THE APPLIANCE regulations in force, following the instruc- MUST BE DONE BY QUALIFIED PERSON. tions described in this manual; also, any op- IT IS STRICTLY FORBIDDEN FOR PERSONS NOT SPECIFICALLY ENABLED TO USE, RUN, eration must be carried out by professionally... - Page 21 System filling and cold start-up Once completed and verified the hydraulic system in all its During this time, open the vents every so often and, if reserve parts, electrically connected to the electric panel all tools, mo- pump present, alternate the operation of the circulation pumps, tor, probes, etc.
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Page 22: Start-Up And Subsequent Checks
Hot start ATTENTION: - After calibrating the burner, check that the flame does not touch the bottom of the coil: otherwise, the cement may be damaged in a short time, compromising the smooth operation of the generator; - Check that the burner flame is centred in the furnace without touching the sides of the coil: otherwise, “cracking”... -
Page 23: Instructions For The Emergency Stop Of The Generator
3.16 - INSTRUCTIONS FOR THE EMERGEN- CY STOP OF THE GENERATOR When the system is cold, inspect the gener- If, despite compliance with the start-up and ator to assess the damage and identify the running control procedures dangerous sit- causes that have led to the fault. uations should arise, quickly take action in- tercepting: - the fuel... -
Page 24: Inspections And Maintenance
INSPECTION AND MAINTENANCE 4.1 - GENERAL RULES FOR THE SERVIC- - It is forbidden because dangerous, even partially obstruct the air vents for the cor- ING GENERATORS rect ventilation of the boiler room. The yield and duration of a generator depend not only on a proper installation but also on - It is absolutely forbidden to touch the hot good operation and maintenance. -
Page 25: Maintenance Instructions
4.2 - MAINTENANCE INSTRUCTIONS Diathermic oil check Every six months it is necessary to chemically analyse the dia- Carry out the following checks: thermic oil to check that its features are still intact. - check the mechanical and electrical efficiency of the control, The diathermic oil approximately lasts 20000 hours of opera- adjustment and safety devices, tion: this value can significantly vary depending on the operat-... -
Page 26: Operating Anomalies
Malfunctions The following are the most common causes of faults and their solutions. Fault Remedy The burner does not switch on. - check the electrical connections; - check the regular flow of fuel; - check that the fuel feeding system is intact and clean, and that it is deaerated;... - Page 27 Fault Remedy Overheating of the circulation pump motor - check that the electrical consumption of the motor, in particular (excessive strain). that the power absorbed by the pump, is correct; - check the joint alignment. Oil overflowing from expansion vessel. - check the initial cold start level;...
- Page 28 S.p.A. info@unical-ag.com - 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 as deemed necessary or useful, without affecting their essential features.
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