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GENERAL INFORMATION 

 

 

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1. GENERAL INFORMATION 

 

1.1 General warnings 

  Professionally qualified personnel in accordance with current laws and standards and in line with 

the manufacturer’s instructions must install the appliance.  

  With  ‘Professionally  qualified  personnel’  is  intended  a  personnel  with  technical  knowledge  in the 

field  of  installation  and  maintenance  of  components  for  central  heating  and  domestic  hot  water 
production systems for domestic and industrial use.   

  The  appliance  must  be  used  solely  for  the  purpose  for  which  it  has  been  designed  and 

manufactured:  central  heating  and  domestic  hot  water  production.  Any  other  use  is  deemed  as 
improper  and  as  such  dangerous.    Under  no  circumstances  will  the  manufacturer  be  held 
responsible for damage or injury to persons or animals caused by errors in the installation and/or 
use of the appliance, or through non-compliance with current local and national standards and/or 
the manufacturer’s instructions. 

  The  installation,  operation  and  maintenance  manual  forms  an  integral  and  essential  part  of  the 

product and must be kept near the appliance always. 

  This  manual  must  be  kept  in  a  safe  place  and  made  available  for  any  future  reference.    If  the 

appliance is sold or transferred to a different owner, this must follow the appliance to be red by the 
new owner and/or installer.      

  The warnings contained in this chapter have been written for the appliance user, the installer and 

the service engineer. 

  The  user  manual  must  be  red  carefully  as  it  provides  information  on  the  operation  and  the 

operating limits of the appliance.   

  This appliance must be used exclusively in a pressurised central heating system.   

  After the removal of all the packaging, check that the appliance has not been damaged. In case of doubt, do not 

attempt  to  use  the  product  but  refer  to  the  supplier.  Packing  materials  (cardboard  box,  wooden  crate,  nails, 
staples, plastic bags, polystyrene, etc.) must not be left within reach of children in that these items represent a 
potential hazard and must be disposed of in a responsible manner. 

  Before carrying out any cleaning or maintenance operations, disconnect the appliance from the mains electricity 

supply by switching off at the main switch and/or any other isolating device. 

  Do not obstruct the air intake or flue exhaust grills. 

  Do not obstruct the air intake or flue exhaust terminals. 

  In the case of a fault and/or malfunction in the appliance, shut down the system. Do not interfere with or attempt 

any repairs. Call for professionally qualified technical assistance only.   

  Any warranty repairs to the appliance must be carried out exclusively by the manufacturer’s authorised service 

centre using original spare parts. Non-compliance with the above requirements may compromise the safety of 
the  appliance  and  invalidate  the  warranty.  In  order  to  guarantee  the  efficiency  of  the  appliance  and  its  correct 
operation,  it  must  be  serviced  regularly  by  professionally  qualified  personnel  in  line  with  the  manufacturer’s 
instructions. 

  When the appliance is no longer required for use, any parts that may constitute potential sources of danger must 

be rendered harmless. 

  Only original accessories or optional extras (including electrical parts) must be used with the appliance.  

  Should there be a smell of gas present in the room where the appliance is installed, 

DO NOT 

attempt to activate 

any  electric  switches,  telephones  or  any  other  equipment  that  may  cause  sparks.  Open  doors  and  windows 
immediately to create a current of air and ventilate the room. Shut-off the main gas supply valve (at the meter), 
or on the cylinder in the case of bottled gas, and call an authorised service centre.  

 

Do not attempt to interfere with the appliance in any way.

 

Summary of Contents for RSA 24 /8

Page 1: ...ce instructions CE 0694 RSA 24 8 RAD ING MAN INST 1410 1 DIGITECH TR MIAH6 E04 Technical specification RADIANT BRUCIATORI S p A Montelabbate PU ITALY ENGLISH Instruction Manual for model RSA 24 8 Wall...

Page 2: ......

Page 3: ...3 3 Unpacking pag 12 3 4 Installing the boiler pag 13 3 5 Water connections pag 14 3 6 D H W circulating loop pag 15 3 7 Gas connection pag 16 3 8 Electrical connections pag 17 3 9 Flue connections p...

Page 4: ...ngs pag 44 6 2 Boiler inspection pag 44 6 3 Accessing the boiler pag 45 6 4 Draining the central heating system pag 46 6 5 Wiring diagrams pag 47 6 6 Electrical connections Option pag 48 6 7 Troublesh...

Page 5: ...of doubt do not attempt to use the product but refer to the supplier Packing materials cardboard box wooden crate nails staples plastic bags polystyrene etc must not be left within reach of children i...

Page 6: ...ent earth system installed in accordance with the requirements of current safety standards This fundamental safety requirement must be checked and verified In case of doubt have the electrical system...

Page 7: ...al heating needs All boilers are fully inspected and are accompanied by a quality certificate signed by the inspector and a guarantee certificate This manual must be kept in a safe place and must acco...

Page 8: ...75 Max Hot water working pressure bar 6 Min Hot water working pressure bar 0 5 D H W 40 C water supply t 30 C for 1 hour litres 690 Max D H W 40 C water supply t 30 C first 10 minutes litres 130 Stora...

Page 9: ...CTIONS 5 450 330 147 43 140 72 115 263 G 60 102 72 78 78 60 125 G 785 820 HR HWO CWI HF HR HWO CWI HF 2 2 Dimensions HR HEATING RETURN 3 4 HF HEATING FLOW 3 4 G GAS 3 4 CWI COLD WATER INLET 1 2 HWO HO...

Page 10: ...LVE 8 PUMP 9 3 bar PRESSURE RELIEF VALVE 10 ELECTRONIC GAS VALVE 11 SISTEM DRAIN VALVE 12 BY PASS 13 ANODE 14 AIR PRESSURE SWITCH 15 SAFETY VALVE 1 2 8 atm 16 STORAGE CYLINDER 17 HEATING SENSOR 18 D H...

Page 11: ...CTIONS 7 2 4 Circulation pump head flow graph Pump head at minimum speed I II Pump head at second speed Pump head at maximum speed III Appliance Loss Flow m3 h Head m III II I 0 1 2 3 4 5 6 0 0 5 1 1...

Page 12: ...Y THERMOSTAT 8 FLAME IONISATION ELECTRODE 9 IGNITION ELECTRODE 10 COMBUSTION CHAMBER 11 BURNER 12 ELECTRONIC GAS VALVE 13 AIR VENT VALVE 14 PUMP 15 3 bar PRESSURE RELIEF VALVE 16 SISTEM DRAIN VALVE 17...

Page 13: ...w 2 different power levels according to the flame modulation of the boiler see fig 2 Error history display last 5 errors To switch the boiler OFF press INFO button the word OFF appears on the display...

Page 14: ...ue will appear on the centre of the display Use and buttons of Heating Temperature setting to scroll the list of available data Press the INFO button to exit the display mode The list of available dis...

Page 15: ...nstructions form an integral part of the installation and should be left with the appliance but do not over ride in anyway statutory obligations 3 2 Boiler room Installation requirements Please refer...

Page 16: ...esent a potential hazard A Place the packed appliance on the floor see fig 1 making sure that the up arrow is facing down Remove the staples and open out the four flaps of the box B Rotate the boiler...

Page 17: ...essary clearances indicated in figure 1 are respected To make the installation easier the boiler is supplied with a template to enable the pipe connections to be positioned prior to fixing the applian...

Page 18: ...ary The cold water supply pressure at the inlet to the boiler must be between 0 5 and 6 bar In areas with higher water inlet pressure a pressure reducing valve must be fitted before the boiler The fre...

Page 19: ...TALLATION INSTRUCTIONS 15 3 6 D H W circulating loop In order to joint the D H W out loop pipe proceed as follows a unscrew the cap A and insert a nipple b joint the nipple to the D H W circulating pi...

Page 20: ...a 22 mm diameter pipe with an uninterrupted supply from meter to boiler and comply with current standards and regulations Check the internal and external seals of the gas supply system A gas shut off...

Page 21: ...be protected by a 3 A fuse The connection to the mains electricity supply must be via a single pole switch with at least 3 millimetres gap between open contacts mounted upstream of the appliance Make...

Page 22: ...wires to the terminal board B as follows Connect the earth wire normally coloured green yellow to the terminal marked with the earth symbol Connect the neutral wire normally coloured blue to the term...

Page 23: ...tant to provide for horizontal air intake flue exhaust pipes a minimum slope of 2 downwards from the boiler towards the external wall see fig 1 For each individual installation air intake and flue exh...

Page 24: ...r can be connected to a suitable combined flue system MAXIMUM FLUE LENGTH 3 m The maximum flue length linear equivalent is obtained by summing the length of linear pipe and the equivalent lengths of e...

Page 25: ...d by summing the length of linear pipe and the equivalent lengths of each bend fitted The linear equivalent is intended as being the total length of the duct exhaust discharge air intake from the conn...

Page 26: ...FLUE LENGTH 6 m The maximum flue length linear equivalent is obtained by summing the length of linear pipe and the equivalent lengths of each bend fitted The linear equivalent is intended as being th...

Page 27: ...t with graduated numbers then the upper disc Fix the flange to the flue elbow using the screw and nut provided with the flue kit Install the 60 aluminium collar onto the flue elbow and when it is full...

Page 28: ...ea of the air intake hole Stick the neoprene washer paying attention to centre holes of the washer with those on the air intake opening Position flue diaphragms respecting this order lower disc first...

Page 29: ...fumes discharge system through 360 MAXIMUM FLUE LENGTH linear length DIAPHRAGM REGULATION from 0 5 to 1 m from 1 to 2 m from 2 to 3 m Remove tags MAXIMUM FLUE LENGTH 3 m MAXIMUM FLUE LENGTH linear len...

Page 30: ...cted properly Also make sure that the earth connection is sound Check the seals on the gas supply pipe from the mains and make sure that the meter does not register any flow of gas Turn the gas supply...

Page 31: ...y Check that the plug of the air vent valve has been slackened slightly to allow air to escape from the system fig 1 Open the filling tap R fig 2 use the pressure gauge M fig 2 to check that the syste...

Page 32: ...the boiler is in OFF mode as long as it is electrically powered 230 V and the gas supply is open In case of long periods of inactivity it is recommended to empty the boiler and the hydraulic system Wa...

Page 33: ...the 4 resistances onto the heating flow pipe heating return pipe cold water pipe and domestic hot water pipe with the exception of the gas pipe See Fig 1 c Protect the pipes with isolating material d...

Page 34: ...ressing the reset button Check minimum and maximum gas pressure setting values Make sure that they comply with those stated on the gas data plate see paragraph 5 4 Gas Data Gas pressure adjustment tab...

Page 35: ...P06 D H W storage cylinder pump overrun timer Not applicable to instantaneous boilers w dual circuit exchanger and only heating boilers 00 90 Displayed in multiples of 5 seconds default value 18 x 5...

Page 36: ...OFF position 2 Keep pressed and buttons simultaneously and wait for P 00 to appear on the display 3 Release buttons and 4 Use and buttons of heating temperature setting to select the parameter to mod...

Page 37: ...THE TYPE OF GAS SUPPLY To enter the parameters menu follow the previously described procedure see paragraph 5 2 Accessing the parameters menu steps 1 5 6 Use and buttons D H W temperature setting to m...

Page 38: ...ARAMETER P04 CENTRAL HEATING TIMER This parameter is used to set the minimum time in which the burner is kept switched off once the heating flow temperature has exceeded the temperature set by the use...

Page 39: ...05 will appear on the display 8 To exit from the parameters menu press simultaneously and buttons PARAMETER P06 D H W STORAGE CYLINDER PUMP OVERRUN TIMER Not applicable to instantaneous boilers w dual...

Page 40: ...utton for 7 seconds until the number 07 flashes on the display chimney sweeper function In this way the boiler will run at maximum heating power for 15 minutes The pressure gauge will indicate the gas...

Page 41: ...Data use and buttons D H W temperature setting to modify the value of the parameter The range of settings is 00 80 13 Press mode selection button to confirm and to render the new adjustment operative...

Page 42: ...in the diverter valve on D H W mode for a time equal to the post circulation keeping hot the secondary heat exchanger To enter the parameters menu follow the previously described procedure see paragra...

Page 43: ...m flow temperature Tm and the minimum outdoor temperature Te taking into consideration the house insulation degree The values of the flow temperature Tm refer to standard 30 80 C appliances or 25 45 C...

Page 44: ...number P13 will appear on the display 8 To exit from the parameters menu press simultaneously and buttons PARAMETER P14 CENTRAL HEATING MAXIMUM SET POINT This parameter is used to set the central hea...

Page 45: ...operative The parameter number P15 will appear on the display 8 To exit from the parameters menu press simultaneously and buttons PARAMETER P16 POST VENTILATION This parameter is used to set the fan...

Page 46: ...15 x 0 78 Consumption 15 C 1013 mbar m 3 h 2 71 Consumption 15 C 1013 mbar kg h 2 02 1 99 Gas pressure adjustment table 5 6 Heating output maximum pressure diagram 0 2 4 6 8 10 12 14 16 18 20 22 24 26...

Page 47: ...re dismantled and reassembled 6 select the new gas type by changing parameter P01 see Parameters table 5 1 7 to convert the appliance from L P G to Natural Gas proceed with the min and max gas pressur...

Page 48: ...ck that the combustion is correctly regulated and if necessary proceed in line with section Commissioning the boiler Remove and clean any oxidation from the burner Check that the seal of the room seal...

Page 49: ...eft and right side panel Remove the fixing screws at the front and lower edge of the side panel to remove Grasp the bottom of the panel move it sideways and then upwards to remove it To access the ele...

Page 50: ...em If there is a danger of freezing the domestic hot water system should be drained This can be done as follows Close the mains water supply valve Joint the water draining pipe and open the cylinder d...

Page 51: ...ce ne C SS 6 5 Wiring diagrams DIGITECH TR Printed Circuit Board MIAH6 Key TRA Ignition transformer ER Ionisation electrode EA Ignition electrode VG Gas valve MD Modulator C Circulating pump PA Air pr...

Page 52: ...or telephone control removing the jumper Ta Ta from the terminal board B first and then connecting the room thermostat telephone control wires d When wires have been connected place plate A back to p...

Page 53: ...tion only if parameter P00 2 3 or 4 CT Telephone control SRB Remote boiler Lock Out indicator Option SVZ Zone Valves Management PCB if Remote control is installed TAZ 1 ZONE 1 Room thermostat TAZ 2 ZO...

Page 54: ...D h THERMOSTAT MALFUNCTION OR OUT OF CALIBRATION i THERMOSTAT CABLE DISCONNECTED h REPLACE PART i CHECK THE WIRING Manual Reset press the Reset button E03 AIR PRESSURE SWITCH j SWITCH OUT OF ORDER k I...

Page 55: ...The function is disabled when the temperature detected by the sensor is 8 C in the D H W circuit or 30 C in the central heating circuit F28 Legionella Prevention Function Function active for storage...

Page 56: ...VE HTG CIRC 25 00196 WATER PRESSURE GAUGE 30 00023 AIR PRESSURE SWITCH 2 14 1 96 30 00035 GAS VALVE SIT 35007LA IGNITION ELECTRODE 35009LA IONISATION ELECTRODE 37016LA FAN 40 00078 PRINTED CIRCUIT BOA...

Page 57: ...A WASHER D 15x8x2 3 8 AFM34 43135LA 3 WAY VALVE WASHER 43139LA PLATE EXCHANGER O RING 43145LA 3 WAY VALVE MOTOR O RING MULTIPLEX 43150LA SEAL O RING 43151LA BY PASS O RING 43159LA WASHER EPDM 80 SH M...

Page 58: ...THE COMPANY RESERVES THE RIGHT TO APPLY VARIATIONS WITHOUT PRIOR NOTIFICATION NEITHER WILL THE COMPANY BE HELD RESPONSIBLE FOR ANY INACCURACIES IN THIS HANDBOOK DERIVING FROM PRINTING OR TRANSLATION E...

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