Summary of Contents for Symona 24 Bithermal
- Page 1 Bithermal Wall-hung boiler with integrated heat exchanger INSTALLATION, COMMISSIONING, USE AND MAINTENANCE MANUAL ITALIAN DESIGN...
- Page 3 SYMONA 24 KW BITHERMAL MANUAL VERS. 10/2014 - REV.3...
-
Page 4: Table Of Contents
CONTENTS General requirements combustion gas evacuation -General instructions -Combustion gas evacuation circuit Use and operation diaphragms -Description of the device -Combustion gas evacuation system: -Components warnings -Interface description Adjustment and maintenance -Season selection -Preliminary maintenance operations -Temperature adjustment -General maintenance operations -Operation with room thermostat -SERVICE function -Special functions... -
Page 5: Use And Operation
USE AND OPERATION DESCRIPTION OF THE BOILER The Symona 24 Bithermal wall-hung boiler is compact and elegant. With its simple and the entry-level product in the Symona range. intuitive interface, this wall-hung boiler is Assembled with care using high-quality ideal where performance and simplicity are components, the Symona 24 Bithermal is required. -
Page 6: Interface Description
INTERFACE DESCRIPTION TURNING THE BOILER ON Pict. 3 Turn on the boiler’s electrical supply at the switch which must be installed on the power supply line to the boiler. The display will turn on immediately, showing all possible symbols for 5 seconds, then the software version located on the board’s microprocessor for a further 5 seconds. -
Page 7: Temperature Adjustment
Pict. 4 Pict. 5 MA X MA X R E S E T /OF F RESET/OFF TEMPERATURE ADJUSTMENT It is possible to regulate the temperature of Turn the upper knob (A) clockwise to increase the the domestic hot water supplied as well as temperature of the central heating circuit and that for the central heating. -
Page 8: Operation With Room Thermostat
OPERATION WITH ROOM THERMOSTAT Energy savings regulations REQUIRE the boiler ASK YOUR AREA INSTALLER FOR INFORMATION ON THE INSTALLATION to be connected to a room thermostat in A N D O P E R A T I O N O F A R O O M order to optimally regulate and maintain the THERMOSTAT. -
Page 9: Fault Codes Table
RETURN THE KNOB TO THE REQUIRED IF A FAULT IS NOT SOLVED AFTER 2 POSITION BASED ON THE DESIRED HOT MANUAL RESET ATTEMPTS THEN THE WATER TEMPERATURE. AUTHORISED TECHNICAL ASSISTANCE CENTRE MUST BE CALLED. FAULT CODE TABLE Code Possible cause Behaviour Possible actions Ensure gas supply valves... -
Page 10: Installation
INSTALLATION OPERATING DIAGRAM Pict. 7 1) Primary heat exchanger 2) Burner 3) Gas valve 5) Safety valve 6) Filling loop cock 7) Hot water priority turbine 9) Circulator unit 10) Expansion tank GAS INTAKE DOMESTIC CH FLOW WATER INTAKE CH RETURN WATER ELECTRICAL WIRING DIAGRAM Pict.8... -
Page 11: Graphs For The Head Available To The System
GRAPHS FOR THE HEAD AVAILABLE TO THE SYSTEM Pict. 9 for 15-60 (Symona 28/32Kw) for 15-50 (Symona 24Kw) 1020 1080 1140 1200 1260 Q L/h INSTALLATION Use: must only be performed by qualified and The boiler has been constructed according authorised personnel. -
Page 12: Hanging The Boiler
Pict. 10 FASTENING THE BOILER TO THE WALL Attach the cardboard template giving the Pict. 11 connection and fastening schemes to the wall, paying attention to the boiler dimensions 24DS / 24BT and necessary clearances. (Pict. 11) 28-32DS / 35CN •... -
Page 13: Layout Of Connections
LAYOUT OF CONNECTIONS Pict. 12 PLUMBING THE BOILER IN Connect the water and central heating Connect the safety valve outlet pipes to the boiler, respecting the positions so that its operation would not and distances indicated (Pict. 12); take cause any damage to persons particular care when connecting pipes to or property ensure they are not placed under pressure... -
Page 14: Filling The System
FILLING THE SYSTEM Perform the filling and topping When all of the boiler connections have up of the system with the boiler been plumbed in, it is possible to proceed completely off and all parts at to fill the central heating circuit. Perform the ambient temperature. -
Page 15: Connection To The Electrical System
Check that all connections are Do not use the gas supply perfectly tight before opening the pipework connections as earth boiler’s gas connection. points for electrical equipment. Check that all devices necessary Always install a gas shut-off valve for creating and limiting the before the device. - Page 16 A qualified electrician should C h e c k t h a t t h e e l e c t r i c a l check the suitability of the connection is sufficient to satisfy protective earth system. The the boiler’s maximum power manufacturer is not responsible consumption, indicated on the...
- Page 17 COMBUSTION GAS EVACUATION SYSTEM: INSTALLATION The boiler, based on its UNI 7129 classification, components necessary for completing the can be connected to COAXIAL and SPLIT line, including changes of direction, straight intake and flue evacuation systems. sections of various lengths, connections to The “coaxial”...
- Page 18 SPLIT SYSTEM 80 mm diameter Description Pressure drop (Pa) Equivalent length m Intake terminal L.950 Flue evacuation terminal L.990 Extension M-F L.1000 90° bend M-F 45° bend M-F Intake adaptor d 80 Flue evacuation adaptor d 80 L 5 0 d 6 0 f l u e e v a c u a t i o n connection Neoprene gasket d 128 Neoprene gasket d 100...
-
Page 19: Combustion Gas Evacuation Circuit Diaphragms
SPLIT SYSTEM (intake + flue evacuation) Max length Signal Max pressure drop Signal (intake/flue evacuation) Symona 24 Bithermal 24 kW 5 metres >90 Pascal 184 Pascal >90 Pascal COMBUSTION GAS EVACUATION CIRCUIT DIAPHRAGMS In order to be able to adapt the air intake... - Page 20 DIAPHRAGMS COAXIAL SYSTEM Diaphragm diameter SPLIT SYSTEM diaphragm diameter Symona 24 Bithermal BETWEEN Symona 24 Bithermal >50 <80 Pascal Ø 37 mm 0.5 metres 1 metre 39 mm >80 <85 Pascal >1 metre 2 metres 39 mm >2 metres 3 metres 41 mm >3 metres...
-
Page 21: Adjustment And Maintenance
ADJUSTMENT AND MAINTENANCE All maintenance operations MUST BE be inspected by a qualified technician at PERFORMED BY QUALIFIED PERSONNEL. the end of every heating season (winter) These operations must also be performed and whenever else it is considered necessary in full compliance with all applicable in order to keep it in optimum operating legislation and regulations. - Page 22 Pict. 20 MA X MA X R E S E T /OF F Pict. 21 RESET/OFF ENSURE THAT: THE CENTRAL HEATING SYSTEM IS CHARGED AND PRESSURISED ANY SHUT-OFF VALVES FITTED TO THE CH FLOW AND RETURN AND ON THE GAS LINE ARE OPEN AND THAT THE GAS SUPPLY IS AVAILABLE ANY CONTROL VALVES ARE TURNED TOWARDS THE SYSTEM THE SPECIFICATIONS FOR CORRECT INSTALLATION AND COMMISSIONING OF THE BOILER HAVE BEEN OBSERVED...
-
Page 23: Power Adjustment
POWER REGULATION The boiler is supplied already set up to technical data plate present on the rear of function optimally with a specific type of gas, the instrument panel. which can be identified by consulting the Pict. 22 - TECHNICAL DATA PLATE INDICATING GAS TYPE It is in any case ALWAYS necessary to check the that the manufacturer’s specifications and following before running the device:... -
Page 24: Gas Pressure Check
- That the gas line meets all applicable Commissioning / periodically: legislation and regulations, in particular: That - Check that the above specifications have a gas shut-off valve is installed immediately been maintained and that the boiler is in before the device. This must have a YELLOW perfect working order. -
Page 25: Dynamic Pressure
Pict. 25 TESTING THE GAS SUPPLY DYNAMIC PRESSURE: - Use the SERVICE function to bring the boiler Check that the value measured with the to maximum power. manometer falls within the max-min interval - Measure the gas pressure before the given in the “Dynamic mains supply pressure”... -
Page 26: Power
THE GAS REGULATION VALVE WHICH DO NOT CORRESPOND TO THE SPECIFIED VALUES. PRESSURE AT THE BURNER mbar G20 (NATURAL GAS) G30 (BUTANE) G31 (PROPANE) Symona 24 12.5 26.5 Bithermal After finishing the gas supply pressure tests: TIGHTEN THE PRESSURE OUTLET SCREW •... -
Page 27: Configuring The Software
Injector type Boiler No. injectors Natural gas Symona 24 Bithermal NP Ø 1.3 mm NP Ø 0.78 mm CONFIGURING THE SOFTWARE FOR A CHANGE IN GAS TYPE To adapt the supply driver of the gas regulation valve modulator it is necessary to enter the “CONFIGURATION MENU”... -
Page 28: Configuration Menu Access
THE USE OF INJECTORS DIFFERENT THAN THOSE SPECIFIED CAN ENDANGER PERSONS AND PROPERTY. CHECK THAT THE BURNER TRAY PACK AND ALL OTHER PREVIOUSLY REMOVED COMPONENTS ARE CORRECTLY POSITIONED BEFORE CONNECTING THE GAS SUPPLY AND STARTING THE BOILER. BEFORE COMMISSIONING THE NEWLY CONFIGURED BOILER IT IS NECESSARY TO CHECK THE GAS SUPPLY PRESSURE BEFORE THE BOILER AND MEASURE AND ADJUST THE GAS PRESSURE AT THE BURNER. -
Page 29: Installer Menu
ONCE YOU HAVE LEFT THE MENU PAGE, RETURN THE KNOBS TO THEIR CORRECT POSITIONS BASED ON THE REQUIRED HOT WATER AND HEATING TEMPERATURES. Pict. 29 RESET/OFF INSTALLER MENU Page Description Default Burner ignition power % Burner maximum power % "Post circulation" time sec "Post ventilation"... -
Page 30: Thermostat Installation
INSTALLATION OF ROOM THERMOSTAT: It is recommended, and in many cases - Remove the boiler iron cover by unlocking mandatory, to connect the boiler to a the upper and lower fastening clips device which monitors and regulates the - Remove the rear instrument panel cover by temperature in the areas served by the boiler unscrewing the 4 screws itself. -
Page 31: Special Functions
SPECIAL FUNCTIONS: ANTI-FROST: If the temperature measured by the sensor This function is always active, whatever mode on the central heating flow circuit is < 6°C, the boiler is in. circulation is activated, the diverter valve In order to allow this function to fulfil its (when present) switched to the CH circuit and purpose, the device must be: the burner lit at minimum power. -
Page 32: Technical Data
TECHNICAL DATA U.M. Symona 24 Bithermal Category II2H3+ NOx Class Type B22p-C12-C32-C42- C52-C62 Gas used G30/31 Heat input max. 25,7 Heat input min. Heat output max. 23,3 Heat output min. Efficiency 92,7 Efficiency at 30% P 91,0 Exhaust gas temp (G20 20mbar) amb temp °C... - Page 33 TECHNICAL DATA U.M. Symona 24 Bithermal DIMENSIONS AND CONNECTIONS Width Height Depth Weight 35,0 Flow/Return " DHW in/out " Gas supply " Concentric (coaxial) intake/exhaust gas 60-100 pipe diameter Min-max concentric pipe length 0.5-5 + bend Split (separate) intake/flue pipe diameter...
- Page 34 NOTE ..................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................
- Page 36 MADE IN ITALY G20 ENGINEERING brand G20 ENGINEERING SRL Loc. Campogrande 13, 29013 CARPANETO PIACENTINO (PC), Italy tel. + 39 0523 850513 - fax. +39 0523 850712 - www.aircontrol-pc.com - www.g20engineering.com...
Need help?
Do you have a question about the 24 Bithermal and is the answer not in the manual?
Questions and answers