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Installation, use and maintenance manual

Caldaia 35 Tech

Outdoor condensing boiler

Summary of Contents for Caldaia 35 Tech

Page 1: ...Powered by natural gas LPG Installation use and maintenance manual Caldaia 35 Tech Outdoor condensing boiler ...

Page 2: ... within this publication are not affected With the aim of continuously improving the quality of its products Robur S p A reserves the right to modify the data and contents of this Installation use and maintenance manual without prior notice Revision B Code D LBR749EN DISPOSAL The appliance and all its accessories must be disposed of separately in accordance with the regulations in force Use of the...

Page 3: ... 6 Fuel gas supply p 17 4 Electrical installer p 18 4 1 Warnings p 18 4 2 Electrical power supply p 18 4 3 Control device p 19 4 4 Control through optional OCDS006 remote control recommended solution p 19 4 5 Positioning the control system p 19 4 6 Operation via centralised external request p 20 4 7 Operation with external temperature probe optional p 20 5 First start up p 20 5 1 Preliminary check...

Page 4: ...orce in the Country of installation Declaration of conformity Upon completing installation the installing firm shall issue to the owner client the appliance s workmanlike conformity declaration according to national local reg ulations in force and the manufacturer s instructions provisions Packing Packing items plastic bags polystyrene foam nails etc must be kept out of the reach of children as th...

Page 5: ...sconnecting the power supply while the appliance is running may cause permanent damage to internal components Except in the event of danger do not disconnect the power supply to switch off the appliance but always and exclusively act through the provided control device In the event of failure Operations on internal components and repairs may exclusively be carried out by a TAC using only original ...

Page 6: ...e caused by incorrect in stallation and or improper use and or failure to comply with regulations and with the manufacturer s directions instructions shall be disclaimed In particular the warranty on the appliance may be ren dered void by the following conditions Incorrect installation Misuse Failure to comply with the manufacturer s indications on installation use and maintenance Alteration or mo...

Page 7: ... burner starts up the flame detector checks that the burner has ignited in the event of a lack of flame the electronic control unit stops the appliance and indicates the block Reset ting is manual In the event of abnormal overheating of the delivery the boiler is switched off The limit thermostat has manual reset Mechanical and thermo hydraulic components Integrated spiral single tube stainless st...

Page 8: ...Water pressure switch 20 Condensate drain siphon 2 3 4 5 7 9 10 11 12 13 14 15 17 16 18 19 20 1 8 6 Figure 1 3 Hydraulic plan of boiler inside R Heating return G Gas inlet SC Condensate drain F Cold water inlet A Heating delivery 1 Flue safety thermal fuse 2 Heat exchanger 3 Burner unit 4 Blower 5 Gas valve 6 Air vent valve 7 Modulating circulator 8 Safety valve 9 System drain tap 10 Heating deliv...

Page 9: ... protection IP X5D Installation data Gas consumption G20 natural gas nominal m h 3 60 G25 nominal m h 4 18 G25 3 nominal m h 4 09 G30 nominal kg h 2 68 G31 nominal kg h 2 64 Water fitting type M thread 3 4 Gas connection type M thread 3 4 Flue gas exhaust diameter Ø mm 80 residual head Pa 91 CO2 percentage in fumes Nominal heat input G20 9 3 G25 9 2 G25 3 9 2 G30 11 3 G31 10 4 Minimal heat input G...

Page 10: ...es Figure 1 4 Circulating pump characteristic curves 0 0 4 0 8 1 2 1 6 2 0 2 4 0 0 1 0 2 0 3 0 4 0 5 0 6 0 7 0 2 4 6 8 0 1 2 3 4 5 6 7 8 0 10 20 30 40 50 70 60 80 0 0 4 0 8 1 2 1 6 2 0 2 4 0 10 20 30 40 15 25 5 p kPa H m P1 W Q m h Q l s Q Igpm Q m h max m ax 35 45 55 65 75 85 ...

Page 11: ...robe MP Control panel terminal block Se Connector for optional outdoor temperature probe Ta Connector for optional room thermostat CS Standby contact L Line N Neutral ne Black ce Light blue ma Brown ar Orange gi Yellow bi White gr Grey ma ce ma ce ma ce ma gi bi gr EV ce ma ce ma EA VG Tra ce ma ER TS TF SR ar ar ce ma ma ce ne ne 220 V 50 Hz MP Pacq 11 10 9 8 7 12 13 14 15 16 17 M12 M9 M7 M5 M2 M...

Page 12: ...f the boiler the installation must take place outside respecting the dis tances indicated in Figure 2 1 p 12 and in any case at a height from the floor of no more than 3 metres Figure 2 1 Clearances A 250 mm B min 300 mm max 3000 mm X 60 mm Y 60 mm H 1000 mm H X A B Y 3 HEATING ENGINEER 3 1 WARNINGS 3 1 1 General warnings Read the warnings in Chapter III 1 p 4 providing im portant information on r...

Page 13: ...onnect a hose connected to a system test pump to the sys tem filling tap Figure 3 3 p 14 on the boiler and fill the hydraulic circuit with water the air in the circuit and in the pipes will be automatically vented by the venting device on the boiler For the calculation of the total water content to be loaded in the system it is necessary to add the water content of the boiler Table 1 1 p 9 and of ...

Page 14: ... the symbol will appear on the display after a few sec onds turn off the boiler by pressing the button again the symbol will appear on the display The circulation pump will remain in operation for a few min utes Repeat the operation several times until the pres sure of the circuit remains unchanged The first time the unit is switched on an automatic system venting cycle is activated see note in Pa...

Page 15: ...y 7 pH 8 5 Conductivity 400 μS cm at 25 C Chlorides 125 mg l Iron 0 5 mg l Copper 0 1 mg l 3 3 3 Condensate drain siphon filling When switching on for the first time the condensate siphon must be filled to prevent the combustion gases from backflow ing through the siphon It is advisable after the first few months of operation of the ap pliance to clean the siphon which collects also any deposits r...

Page 16: ... 1 5 m a curve and aTee Figure 3 10 p 16 for condensate collection and drainage must be provided The condensate must then be evacuated in ac cordance with the regulations in force at the same time as that coming from inside the boiler Figure 3 10 Flue gas condensate discharge 300 mm The connection of the discharge to the sewerage system must be made at atmospheric pressure i e by dripping into a s...

Page 17: ...as pressure This appliance is equipped for a maximum gas supply pressure of 50 mbar The appliance s gas supply pressure both static and dynamic must comply with Table 3 4 p 17 with tolerance 15 Non compliant gas pressure Table 3 4 p 17 may damage the appliance and be hazardous Table 3 4 Gas network pressure Product category Countries of destination Gas supply pressure mbar G20 G25 G25 3 G30 G31 II...

Page 18: ... fitted with siphon and discharge of the condensate that may form inside the pipe If necessary insulate the piping LPG pressure reducers With LPG the following must be installed A first stage pressure reducer close to the liquid gas tank A second stage pressure reducer close to the appliance 4 ELECTRICAL INSTALLER Do not power and or start the boiler before filling the hydraulic system as this may...

Page 19: ... the fitting cover and the ABS casing Figure 4 2 Cable gland position and remote control connection detail to the external module P1 P2 Cable glands A Plate B Terminal block CR Room thermostat or remote control OCDS006 P1 P2 L N Se Se A Ta Ta B CR 4 4 CONTROL THROUGH OPTIONAL OCDS006 REMOTE CONTROL RECOMMENDED SOLUTION The use of the remote control allows you to adjust the opera tion of the boiler...

Page 20: ...ly temperature The ex tent of the temperature correction depends on the temperature control value Kd set using the board parameter P16 see Figure 5 4 p 23 5 FIRST START UP First start up entails checking setting up the combus tion parameters and may exclusively be carried out by a Robur TAC NEITHER the user NOR the installation tech nician is authorised to perform such operations under penalty of ...

Page 21: ... D E To work on the internal electrical connections of the control pan el proceed as follows Figure 5 2 p 21 1 Simultaneously grab the control panel support brackets by widening them and turn the panel upside down by rotating it down 2 Unscrew the four fixing screws 1 and remove the cover upwards Figure 5 2 Accessing the control panel 1 1 1 1 5 3 ELECTRONIC BOARD PARAMETERS SETTING Before commissi...

Page 22: ...ating service which corresponds to the minimum power of the burner during a heating request see Figure 5 5 p 24 The value is preset according to the set power parameter P00 and the type of gas parameter P02 45 P13 Value in hertz 1 Hz 30 RPM P13 Heating blower maximum speed adjustment It is possible to set the maximum speed of the fan for the heating service which corresponds to the maximum power o...

Page 23: ...ating operation 50 70 60 Value in percentage P24 Modulating pump maximum speed It is possible to set the maximum speed value of the modulating pump during a request for space heating operation 70 100 100 Value in percentage P26 Modbus address Not used P27 Modbus communication baud rate Not used P28 Modbus mode Not used P29 Post circulation heating Δt It is possible to set the temperature differenc...

Page 24: ...wer the boiler Open the gas valve on the boiler and check that the valves connecting to the system are open Activate the heating request to the boiler through the con trol devices provided and provide an adequate thermal load for carrying out the verification operations Insert the flue gas analyser into the flue gas analyser socket PF Figure 5 6 p 24 and turn it on Figure 5 6 Socket for flue gas a...

Page 25: ...s 2 of the venturi V with a 10 mm wrench 4 Unscrew the two screws 3 and press on the back side of the venturi body C 5 Replace the venturi with the one suitable for the type of gas to be used and make sure that the orientation of tooth D is downwards on the aluminium body 6 Reassemble the components proceeding in the opposite se quence to the disassembly operations making sure that the gasket G is...

Page 26: ...k functions to be active the boiler must be left powered 5 8 PROLONGED PERIODS OF INACTIVITY To switch off the unit select the OFF mode using the key Figure 6 1 p 26 In this way the appliance is in standby mode symbol appears on the display Switch off the power using the main switch outside the boiler and close the gas tap upstream of the appliance By removing the power supply the automatic anti f...

Page 27: ...NARY CHECKS Checks before switching on Before switching on the appliance ensue that Gas valve open Appliance electrical power supply main switch ON The fumes exhaust duct is free and correctly connected to the fumes exhaust system The hydraulic circuit has been filled If this is not the case fill the system according to the instructions in Paragraph 3 3 2 p 13 and 3 3 3 p 15 Check on the pressure ...

Page 28: ...o menu you have to 1 Press the key Figure 6 1 p 26 The info code will be displayed on the left side of the screen and its value will be displayed on the centre of the screen 2 To scroll through the list of displayable data use the and keys of the heating side 3 Press the key to exit the Info menu Table 6 1 p 28 shows the list of Info menu displayable data Table 6 1 List of displayable data from me...

Page 29: ...the fault history press the reset key To exit the display press the key Table 8 1 Error codes Code Fault Possible cause Remedial action Reset E01 Flame lockout Without flame ignition No gas supply Check the gas supply network Manual reset press key 1 Broken or badly positioned ignition electrode Replace Gas valve fault Replace Slow ignition set too low Adjust the minimum or slow ignition Inlet pre...

Page 30: ...tion Check the electrical connection Automatic Modbus board fault Replace E35 Parasitic flame Flame detector fault Clean or replace Manual reset press key 1 Flame detector cable fault Replace Modulation board fault Replace E40 Wrong power supply voltage Supply voltage out of operating range 160 Volts Check the power supply the error is automati cally reset as soon as the power supply voltage retur...

Page 31: ...gime 1 97 8 s m e t i r e h t O n o i t p m u s n o c y t i c i r t c e l e y r a i l i x u A At full load elmax 0 038 kW Standby heat loss P stby 0 059 kW At part load elmin 0 016 kW Ignition burner power consumption P ign 0 kW In standby mode P SB kW Annual energy consumption Q HE 105 5 GJ Sound power level indoors L WA 52 4 dB Additional information required by COMMISSION REGULATION EU No 813 2...

Page 32: ...8111 F 39 035 884165 www robur it robur robur it 23 07 2019 19 MCM SDC 022 Code D LBR749EN Revision B Robur is dedicated to dynamic progression in research development and promotion of safe environmentally friendly energy efficiency products through the commitment and caring of its employees and partners Robur mission ...

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