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SERVICING AND MAINTENANCE INSTRUCTIONS

  

 

MAIN COMPONENTS 

 

 

 

 

SC

 

 

POS. DESCRIPTION 

FLUE HOOD – ROOM SEALED COMBUSTION CHAMBER 

2 COMBUSTION 

CHAMBER 

 

ROOM SEALED CHAMBER COVER 

ROOM SEALED CHAMBER BACK 

HEAT EXCHANGER  

FLAT PLATE TYPE EXCHANGER 

MULTIGAS BURNER  

8 IGNITION 

ELECTRODE 

FLAME IONISATION ELECTRODE 

10 HEATING 

SAFETY 

THERMOSTAT 

11 

ELECTRONIC GAS VALVE VK4105  

12 

ELECTRONIC IGNITION BOARD 

13 EXPANSION 

VESSEL 

14 

CIRCULATION PUMP WITH AIR VENT 

15 

AUTOMATIC AIR VENT 

16 

HEATING CIRCUIT 3 bar PRESSURE RELIEF VALVE 

17 DRAIN 

TAP 

18 

WATER PRESSURE GAUGE 

19 

WATER PRESSURE SWITCH 

20 HEATING 

SENSOR 

21 

HOT WATER SENSOR 

22 3-WAY 

DIVERTER 

VALVE 

23 

FLOWSWITCH CONNECTION WITH FLOW LIMITER 

24 ELECTRONIC 

FLOWSWITCH 

25 BY-PASS 
26 

AIR PRESSURE SWITCH 

27 FAN 
28 STORAGE 

BOILER 

29 

SAFETY VALVE 1/2" 8ATM 

30 

ANODE  W/CONTROL VALVE 

31 

ANODE  CONTROL VALVE 

32 FLUE 

SAFETY 

THERMOSTAT 

33 

SECONDARY HEAT EXCHANGER   

34 CONDENSATE 

TRAP 

35 

D.H.W. EXPANSION VESSEL 

36 

NO RETURN VALVE 

HYDRAULIC DIAGRAM

CONDENSING WALL-HUNG BOILER –  TG05A062.A0505

 

34

Summary of Contents for SiRRUS RHA 28

Page 1: ...Installation and Servicing Instructions RHA 28 Gas Fired Condensing Boilers with Storage Cylinder SEDBUK BAND B CE 0694 TG05A062 A0205 RADIANT BRUCIATORI S p A Montelabbate PU ITALY ENGLISH...

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Page 3: ...TION REQUIREMENTS page 12 BOILER INSTALLATION page 16 ELECTRICAL CONNECTIONS page 18 SERVICING AND MAINTENANCE INSTRUCTIONS BOILER CONTROL PANEL page 19 COMMISSIONING page 19 BOILER CONTROL PANEL page...

Page 4: ...DIRECTIVE 89 336 EEC Electromagnetic compatibility GAS DIRECTIVE 92 42 ECC requirements for new hot water boilers fired with liquid or gaseous fuels All RADIANT boilers are constructed according to U...

Page 5: ...according to the constructor s instructions Whenever the device is to be put out of service secure all potentially hazardous parts to prevent accidents or damage If the device is sold or transferred...

Page 6: ...gative effect the operation of the boiler 3 GENERAL WARNINGS BASED ON TYPE OF POWER SUPPLY POWER SUPPLY Electrical safety is achieved only when the device is correctly and efficiently earthed as per c...

Page 7: ...Max Hot water working pressure bar 6 Min Hot water working pressure bar 0 5 Storage cylinder capacity litres 15 Continuous hot water supply t 30 mixed water litres h 783 Max continuous hot water supp...

Page 8: ...OVERALL DIMENSIONS 155 715 80 102 75 5 70 78 84 5 900 65 490 160 65 277 200 450 S F G C R A KEY R RETURN FLOW G GAS C HOT WATER F COLD WATER A HEATING FLOW Z SC CONDENSE DRAIN POINT CONDENSING WALL HU...

Page 9: ...mum flue length 3 mt indicator models 1 1 1 1 2 1 3 2 2 1 2 2 2 3 3 3 1 3 2 3 3 4 4 1 4 2 4 3 5 No diaphragm RHA 28 from 2 a 3 mt from 0 5 to 1 mt from 1 to 2 mt N B remove tags Example intake exhaust...

Page 10: ...2 93 When deciding the Flue Length he use of additional bends reduce tal length of flue pipe LUE INSTALLATION OPTIONS consider the total length of flue starting by the room seal chamber top connection...

Page 11: ...e length 30 mt Indicator models 1 1 1 1 2 1 3 2 2 1 2 2 2 3 3 No diaphragm RHA 28 from 1 to 8 mt from 8 to 18 mt from 18 to 30 mt Example intake exhaust pipes length equivalent length 2 5 metres set t...

Page 12: ...5 80 140 80 S F C R G A 900 84 5 78 70 80 102 75 5 875 The use of additional bends reduce linear length by the following value 90 flue bend 80 wide radius 1 5 m 90 flue bend 80 narrow radius 3 m 45 fl...

Page 13: ...um flue length 3 mt indicator models 1 1 1 1 2 1 3 2 2 1 2 2 2 3 3 3 1 3 2 3 3 4 4 1 4 2 4 3 5 No diaphragm RHA 28 from 2 a 3 mt from 0 5 to 1 mt from 1 to 2 mt N B remove tags Example intake exhaust...

Page 14: ...to UNI 7129 01 standard and D P R 412 93 When deciding the Flue Length consider the total length of flue starting by the room seal chamber top connection The use of additional bends reduce linear len...

Page 15: ...must be a 22 mm ininterrupted supply from meter to the isolation cock of the boiler The complete installation must be tested for soundness as described in the above code BS 6400 1985 BS6891 IMPORTANT...

Page 16: ...is fitted less than 2m 6 6ft above a balcony above ground or above a flat roof to which people have access the terminal MUST be protected by a purpose designed guard Where the terminal is fitted with...

Page 17: ...should be installed at the lowest point of the heating circuit and beneath the appliance Note If required an automatic by pass is preferred Radiator valve Filling point DHW outlet Pressure reducing va...

Page 18: ...6798 2000 Part H I of the Building Regulations give further guidance 3 The discharge pipe should be run in a proprietary drain pipe material e g PVC PVC U ABS PVC C or PP 4 Metal pipework is NOT suit...

Page 19: ...to the heating system with the fittings Connect pipes and valves as shown in the picture e position the boiler paying attention to hang it to the hanging bracket and make final connections WATER CONN...

Page 20: ...2000 conversion to allow the boiler to run on LPG to natural gas or vice versa must be carried out by a qualified gas fitter in accordance with law no 46 of 5th March 90 see p 18 ANTI FREEZE SYSTEM A...

Page 21: ...t to the terminal block located in the instrument panel as follows A Turn off the electrical power supply at the mains B Remove the boiler front casing C Remove the small panel plate A on the right si...

Page 22: ...HOT WATER SENSOR FAILURE 12 STORAGE TANK WATER SENSOR FAILURE 14 AIR PRESSURE SWITCH WATER PRESSURE SWITCH LOCK OUT 22 REQUEST OF PARAMETERS RE SETTING STARTING UP THE BOILER After connecting up the...

Page 23: ...4 shows value 04 flashing it is necessary to repeat the procedure of filling the system if the display 14 shows value 01 flashing wait 3 minutes set the ON OFF button 1 to OFF position and then ON pos...

Page 24: ...DISPLAY PAD ONLY IF OPTIONAL OUTSIDE TEMPERATURE SENSOR IS FITTED 14 TEMPERATURE AND ERROR CODES DISPLAY 13 WATER DEFICIENCY INDICATOR 12 WATER PRESSURE LEVEL 1 BAR INDICATOR 11 WATER PRESSURE LEVEL 1...

Page 25: ...rature Water Hammer prevention function Short cycling function 3 minutes heating circuit Pump overrun function heating circuit Pump overrun function dom hot water circuit Minimum output setting Maximu...

Page 26: ...FROST FUNCTION DOMESTIC HOT WATER CIRCUIT THIS FUNCTION COMES INTO OPERATION WHEN THE HOT WATER SENSOR SENSES A 4 C TEMPERATURE THE BOILER STARTS AT THE MINIMUM GAS PRESSURE WITH THE 3 WAY VALVE IN SU...

Page 27: ...PREVENTION SETTING 00 01 EXCLUDED ACTIVE 2 STANDBY 6 SHORT CYCLING FUNCTION HEATING CIRCUIT FACTORY CALIBRATED AT 180 PARAMETER VALUE 36 00 90 EXPRESSED IN STEPS OF 5 SEC Ex 90 x 5 450 7 5 MIN 7 PUMP...

Page 28: ...setting j The display will show parameter no k Position ON OFF button 1 first in OFF position and back to ON position 1 Parameter 2setting GAS TYPE SELECTION To modify the Parameter value a Put ON OF...

Page 29: ...show parameter no k Position ON OFF button 1 first in OFF position and back to ON position 3 Parameter 4 setting PUMP SETTING IN HEATING MODE To modify the Parameter value a Put ON OFF button 1 in OF...

Page 30: ...tton 1 first in OFF position and back to ON position Parameter 6setting SHORT CYCLING FUNCTION HEATING CIRCUIT adjustable from 0 to 7 5 minutes Factory calibrated at 3 minutes STANDBY To modify the Pa...

Page 31: ...parameter no 7 k Position ON OFF button 1 first in OFF position and back to ON position Parametr 8setting PUMP OVERRUN DOMESTIC HOT WATER CIRCUIT adjustable from 0 to 7 5 minutes Factory calibrated at...

Page 32: ...n ON position and wait until the display shows P 0 Gas valve VK 4105G e Release pad 6 and 4 f Keeping pad5 pressed press pad 6 and select parameter no 1 g Release service pad 5 press and release servi...

Page 33: ...5 to confirm the setting the display will show value 1 k Position ON OFF button 1 in OFF position and back to ON position l Open the hot water tap at the maximum flow and temperature to switch the boi...

Page 34: ...1 Gas valve VK 4105G g Release service pad 5 press and release service pad 5 h The display will show the parameter value to be set or modified i Press pad 6 to increase or pad 4 to decrease gas press...

Page 35: ...askets reassemble the entire burner unit Use the soapy water method to check for gas leaks each time gas connections are dismantled and reassembled LEGEND 1 GAS VALVE MOD VK4105A 2 STABILISER 3 INLET...

Page 36: ...NG NATURAL GAS G20 G P L G 30 G 31 min max max min 6 5 11 4 30 6 SLOW IGNITION ADJUSTMENT This is a slow ignition regulator whose trimmer is factory set to the minimum For adjustment proceed as follow...

Page 37: ...SEL 14 CIRCULATION PUMP WITH AIR VENT 15 AUTOMATIC AIR VENT 16 HEATING CIRCUIT 3 bar PRESSURE RELIEF VALVE 17 DRAIN TAP 18 WATER PRESSURE GAUGE 19 WATER PRESSURE SWITCH 20 HEATING SENSOR 21 HOT WATER...

Page 38: ...see the operation mode according to the disk colour red disk heating mode blue disk domestic hot water mode The new 3 way valve does not have the middle position function in case of motor failure DIF...

Page 39: ...COD 76654LA M4 M2 M1 M12 M10 M8 M9 red black black black black white light blue brown light blue black grey brown light blue brown light blue black brown black brown light blue brown light blue black...

Page 40: ...5 or to the terminal block fig 3 dotted line on the terminals marked SE SE WARNING The remote control connection cable must pass through a channel which is separate from any system supplied with power...

Page 41: ...for temperature limit safety sensor for pressure limit Check the exhaust flue safety device Check the max and min modulation pressures and the modulation Check that the electrical connection conforms...

Page 42: ...n o Thermostat cable disconnected n Check the flue pipe o Check cable connection 04 Water deficiency in the system p Water pressure in the system insufficient stop below 0 5 bar q Water pressure switc...

Page 43: ...ULTIPLEX GROUP 58014LP MAIN HEAT EXCHANGER 24K 2003 T 58022LA SECONDARY HEAT EXCHANGER 59011LA AIR PRESSURE SWITCH C6065FH1490 59015LA WATER PRESSURE SWITCH PC5411BRASS 73507LA D H W HEATING 1 8 WHITE...

Page 44: ...ANGE WASHER MPLEX 43139LA PLATE EXCHANGER O RING MULTIPLEX 43145LA 3 WAY VALVE MOTOR O RING MULTIPLEX 43150LA EPDM O RING FOR BRASS CONNECTIONS MULTIPLEX 43151LA BY PASS REGULATOR EPDM O RING 5x2 MULT...

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Page 48: ...T HAVE BEEN CAREFULLY PREPARED BUT WE RESERVE THE RIGHT TO MAKE CHANGES AND IMPROVEMENTS IN OUR PRODUCTS WHITCH MAY AFFECT THE ACCURANCY OF THE INFORMATION CONTAINED IN THIS LEAFLET E OE ALL RIGHTS RE...

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