Rinnai REB-KBI2424FF User And Installation Manual Download Page 1

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Gas-fired, condensing, modulating wall-hung

boilers, with adjustable power, sealed chamber,

forced flow with WiFi room thermostat

User and installation manual

REB-KBI2424FF

Zen I24

Condensing ZI24

REB-KBI2929FF

Zen I29

Condensing ZI29

REB-KBI3535FF

Zen I34

Condensing ZI34

Free initial commissioning:

after the product is installed call the green number

a Rinnai authorized technician will provide a free commissioning of the boiler

and will activate the product warranty.

MENU

AUTO

ON
OFF

TIMER

ENERGY

MONITOR

SAVE

PUSH

Summary of Contents for REB-KBI2424FF

Page 1: ...B KBI2424FF Zen I24 Condensing ZI24 REB KBI2929FF Zen I29 Condensing ZI29 REB KBI3535FF Zen I34 Condensing ZI34 Free initial commissioning after the product is installed call the green number a Rinnai authorized technician will provide a free commissioning of the boiler and will activate the product warranty MENU AUTO ON OFF TIMER ENERGY MONITOR SAVE PUSH ...

Page 2: ...mbi boilers are CE certified under Regulation 2016 426 EU and Directive 2014 53 EU Zen I24 ZI24 REB KBI2424FF Zen I29 ZI29 REB KBI2929FF Zen I34 ZI34 REBKBI3535FF Certificate number ID number Certification date Last revision date ...

Page 3: ...ct for any issue related to the installation comply with the national and local laws in force and technical standards According to legislation in force the systems must be designed by qualified technicians Installation and maintenance must be performed in compliance with the regulation in force according to the manufacturer s instructions and by qualified personnel An improper installation or asse...

Page 4: ...n connection with the replacement of a product or heat exchanger If Rinnai determines that repair of a product is not possible Rinnai will replace the product with a comparable product at Rinnai s discretion If a component or product returned to Rinnai is found to be free of defects in material or workmanship or damaged by improper installation the warranty claim may be denied HOW DO I GET SERVICE...

Page 5: ... INSTALLER S INSTRUCTIONS 29 2 1 INSTALLATION WARNINGS 30 2 1 1 LOCATION 30 2 2 UNPACKING THE BOILER 31 2 3 DIMENSIONS 31 2 4 MAIN COMPONENTS 32 2 5 GENERAL SCHEME AND OPERATION PRINCIPLES 33 2 6 INSTALLATION 34 2 6 1 hydraulic couplings 34 2 6 2 gas connection 35 2 6 3 flue system connection 35 2 6 4 Elettrical connection 39 2 6 5 RINNAI WIFI CHRONOThERMOSTAT 39 2 6 6 chronoThERMOSTAT of A differ...

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Page 7: ...7 1 USER S INSTRUCTIONS The following section shows the instructions for a correct use of the product It is intended for the use of qualified technical personnel and of the final user of the product ...

Page 8: ...arthquake further dangerous The Zen serie is equipped with a PRE INSTALLED CLIMATIC PROBE It is no longer necessary to work hard to install the external temperature sensor the probe is already connected and installed ready for use By activating the automatic operation the boiler will adjust its combustion based on the external ambient temperatures always guaranteeing excellent comfort and reducing...

Page 9: ...only They are built for domestic or similar uses for the production of domestic hot water and the heating of water at a temperature lower than that of boiling at atmospheric pressure They must be electrically powered connected to a gas heating and a domestic hot water distribution system suited to their performance and power Only a professional licensed company is authorized to install Rinnai gas ...

Page 10: ...table make sure that the electrical system is up to standard and has a good earth connection otherwise the appliance may be damaged or malfunctioning It is not recommended to extend the supplied electrical cable eg through the use of extension cords or multiple sockets In case of damage replace the electric cable with an original one Replacement may only be performed by Rinnai authorized technical...

Page 11: ...11 1 3 MAIN COMPONENTS Manometer CH circuit Body controller Water supply valve CH DHW inlet CH return Condensate drainage Wiring access Pressure relief valve Emergency mode switch DHW outlet Gas ...

Page 12: ...ter temperature Child lock operation Time Reservation mode Reservation mode operation Heating temperature Save mode operation Auto mode operation Eco mode operation Space heating mode Wi Fi connection Anti freezing function operation Reservation setting Hot water mode DHW Temperature control Heating mode CH Temperature control Hot water mode DHW lamp Heating mode CH lamp Heating CH Hot water DHW t...

Page 13: ...tem activate deactivate the hot water supply adjusting the temperature of the hot water check for malfunctions and error codes A second operation mode is by connecting the Rinnai WiFi chronothermostat which is supplied as a standard with the appliance The main features available are select the heating mode room temperature or flow temperature mode activate deactivate the heating mode and adjust th...

Page 14: ... desired minute 2 Press the knob once to confirm the time set 1 a beep is heard and the time is set Child lock function To prevent tampering and to increase the security the WiFi thermostat is equipped with a key lock function To activate the Child lock function follow the procedure Ensure the thermostat is switched On press the button ON OFF to switch it On Press and keep pressed the button ON OF...

Page 15: ...ly The preset temperature is 55 C it is possible to select temperatures ranging from 35 C to 80 C Heating temperature setting To set the heating temperature follow the procedure Press once the heating mode button 1 a beep is heard and the button lights up on the display the temperature value previously selected is flashing the boiler fires and the display shows the icon as soon as the burner is on...

Page 16: ...e the hot water mode button 1 a beep is heard and the icon lights up on the display the previously selected temperature value is flashing by opening a tap the boiler fires and the display shows the icon as soon as the burner is on the color of the hot water function button s led turns to orange Rotate the adjusting dial 2 to modify the desired temperature To deactivate the DHW function of the boil...

Page 17: ...ortening the time needed for its production When the function is activated the hot water preparing circuit is immediately raised to the right temperature and mantained hot for thirty minutes or until first use At the end of this time period or after having used hot water the boiler stops this function automatically in order to reduce wasted energy and minimize the consumption then returns to norma...

Page 18: ...To leave the AUTO mode Press once the button AUTO SAVE or the button When AUTO mode is on the boiler will not consent you to modify the heating temperature this value is entirely automatically managed AUTO mode has to be disabled to change the temperature 1 4 6 energy saving mode SAVE Energy save mode will also be mentioned as SAVE Energy saving mode exclusively operates on the heating mode and no...

Page 19: ...time reservation will be completed by defining the temperatures T1 daytime and T2 reduced in the menu A parameters 6 and 7 of the chronothermostat functions see par 1 4 8 the temperature T1 is used by the boiler during the intended and selcted specific times highlighted in orange in the time slot but the temperature T2 is used during the unselected time slots To exit RESERVATION mode during the op...

Page 20: ...ter DHW functions are deactivated By turning the dial 2 it is possible to change the parameter or its value the icon will be lit up By pressing the dial 2 it is possible to confirm the selection of the parameter or its value the icon is not blinking To exit the parameters menu is necessary to press the button MENU 1 more than once After 20 seconds of inaction the parameters menu will be automatica...

Page 21: ...lay the ignition of the burner to a max of 500 seconds on installation with slow peculiar commutational elements local valves Value x10 delay OFF 14 Frequence re ignition CH 1 5 Modifies the OFF forced stationary state of the burner between two consecutive ignitions Low value longer waiting time 5 15 Positioning of the climatic sensor OU In Defines the environment in which the climatic sensor has ...

Page 22: ...re in the circuit get back to 55 C for 2 sec at least If the heating circuit temperature falls to 2 C or the temperature in the environment where the boiler is installed falls to 5 C electrical resistors are activated to protect the domestic water circuit only The symbol fixed is showed on the dyspaly of the thermostat when antifrost electrical resistances are activated When the boiler activates t...

Page 23: ...ller led will light up They indicate that The heating mode is activated The boiler s burner is on Press repeatedly the button to raise the temperature up until the display shows the intended temperature To deactivate the heating mode hold down the button for a few seconds When the WiFi thermostat is connected and the boiler works in room temperature mode it will not be possible to modify the flow ...

Page 24: ...ly to the boiler 1 Is the boiler well attached to the wall 2 Is the noise from the air inlet exha pipe 3 Does the noise come from hydraulic circuit Suggestion Problem Possible cause 1 Plug into the outlet with the correct voltage 2 Check that the set temperature on the display is higher than the current temperature 3 Turn off the boiler and turn it on again 4 Open the gas supply valve 1 Attach the...

Page 25: ...the Rinnai technical assistance service 15 CH DHW Problem of water circulation in the hydraulic system Check the boiler s hydraulic feeding Check that the plumbing pipe are not freezed Verify the presence of air in the hydraulic circuit disconnect the electric cable and reactivate the boiler the de aerating function will be reapeated 16 CH DHW Overheating CH Verify that at least a thermostatic val...

Page 26: ...Rinnai technical assistance service 72 CH DHW Water s missing Press the button CH or DHW twice to turn off and on the function If the error code remains please call the Rinnai technical assistance center 89 POWER SUPPLY Freezing Call the Rinnai technical assistance center 90 CH DHW Abnormal rotation of combustion fan Premere il tasto CH twice to turn off and on the function 96 FUNCTION TEST Proble...

Page 27: ...osed before every kind of maintenance or cleaning can be performed Clean the outer boiler s case and the remote control with cloth pieces moisted with water or non aggressive detergents Do not use solvents or dispersants Always check the appliance and make sure nothing is accidentally disconnected or damaged on completion of the maintenance phase leakage produced by combustion can cause death or s...

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Page 29: ...29 2 INSTALLER S INSTRUCTIONS The following section provides specific instructions for a correct installation of the product It is intended for the exclusive use of qualified technical personnel ...

Page 30: ...aw flammable material chemical products corrosive substances or similar materials nearby the boiler is installed is forbidden The air surrounding the appliance the exhaust and inlet air system is used for the flame s combustion air must be devoid of each element that could cause the corrosion of the components it means air must not contain corrosive substances for instance aerosol spray detergents...

Page 31: ...llowing parts and accesories in the packaging WiFi chronothermostat WF P100W Connection cable for chronothermostat of different brand Instructions manual and documentation Straws kit and wall plugs for the device PUSH Condensate neutralizer preloaded in the siphon 2 3 DIMENSIONS 700 660 46 5 72 78 83 71 440 126 7 72 78 83 71 210 101 77 77 82 265 20 225 100 REB KBI3535FF 315 Dimensions in mm Heatin...

Page 32: ...or Suction plate dual system Coaxial flue system filling unit Plate heat exhanger for hot water Heat exchanger Gas valve Expansion vessel Combustion fan Circulation pump Smoke ejector conduit Igniter Detection electrode First heat exchanger Second heat exchanger Return temp sensor CH Circuit s pressure gauge CH Flow switch DHW Water level sensor CH Cold water inlet filter Condensation siphon and n...

Page 33: ...exchanger Return sensor CH PCB Condensate siphon Power cable Chronothermostat WiFi Return filter CH Vent valve Filling tap Filter DHW Antifrost resist DHW Expansion vessel Ex vessel connec pipe Manometer Hot water sensor Circulation pump Flow switch Deaerator GAS Flow CH Exit DHW Three way valve AIR INTAKE SMOKE COMBUSTION OUTLET Combustion fan Return sensor CH Overheating switch Gas valve Exchang...

Page 34: ...warranty Below are some limit values of substances dissolved in water Description pH Tot dissolved solid Total hardeness Chlorides Magnesium Calcium Sodium Iron Maximum recommended levels 6 5 9 0 600mg liter 150mg liter 300mg liter 10mg liter 20mg liter 150mg liter 1mg liter The hydraulic pipes must be insulated to optimize energy efficiency and reduce heat loss Heating The CH connections are 20A ...

Page 35: ... the provisions of the law and the technical regulations in force The type of the flue system must be listed into the classes mentionned on the data plate located on the side of the appliance Rinnai provides a specific flue system for the appliance Detailed installation instructions are supplied with the flue elements For more information contact Rinnai Zen boilers must be installed by always conn...

Page 36: ...and have a male female watertight seal Traits exposed to direct sunlight must be homologated for such use or be adequately protected Using a Ø80 80mm split exhaust system the maximum permissible equivalent length is 50m total intake exhaust the maximum permissible equivalent length for the air intake duct is 10m It is necessary to subtract 1 5m for each 90 bend used and 0 5m for each 45 bend By ex...

Page 37: ...0 C Under aeration ventilation intake 600 D Next to a aeration ventilation intake 600 E Under a drainpipe 300 F Betweentwoverticalterminals 1500 G Horizontally situated next to an exhaust terminal 1000 H Under a balcony 300 I Alongside a balcony 1000 L 300 M From the ground or other walking areas 2200 N From pipes or exhaust and drain pipes 300 Under a window Next to a window From a corner a reces...

Page 38: ... HX080 009 Coax roof terminal ø80 125 L 480 mm FOT KX060 001 Coax extension ø60 100 L 1000mm FOT KX060 001 Coax extension ø60 100 L 1000mm FOT KX060 007 Horizontal flue kit ø60 100 L 750mm 3 FOT KX060 005 Coax bend ø60 100 90 3 FOT KS080 007 Horizontal flue kit Ø80mm L 750mm 3 5 FOT KS080 004 Kit 2x45 bend Ø80mm FOT KS080 001 Kit extension Ø80mm L 1000mm FOT KS080 001 Kit extension Ø80mm L 1000mm ...

Page 39: ...ller must be installed on an accessible wall at a height of 1 2 1 5m from the ground in a place that is significant for the home especially if it is used in room thermostat mode Avoid installing it in areas where the temperature is 40 C 20 C or with a high humidity level where it is directly affected by solar light subjected to splashes of water to the effect of chemical agents or fouling in parti...

Page 40: ...al tap at the base of the boiler IMPORTANT The filling of the circuit must be carried out in a very slow way this prevents the formation of air bubbles that cause slowdowns in the commissioning of the system and can cause more problems in the initial phase of use Once the boiler has been installed before operating it always make sure that the system is filled correctly and that the pressure gauge ...

Page 41: ...tivated during the heating phases when antifreeze protection is required and when the initial functional test deaeration cycle is performed The characteristics of a compatible supplementary pump are Voltage 230V AC 50Hz Amperage 1 A Inrush current 1 5 A pumps with special and different technical charachteristics may cause the improper functioning of the boiler and damage the PCB Installation unplu...

Page 42: ... system is well drained make sure that the boiler operates correctly check the gas pressures both for DHW CH operation are correct check the CO2 emissions both maximum and minimal flows check if the intake exhaust system is properly connected and clear of obstruction seal the gas regulation devices in case of variation check the hydraulic circuits tightness check the aeration in the water heater s...

Page 43: ...ps to 2 C or the temperature of the environment in which the boiler is installed falls to 5 C electrical resistances are activated to protect the DHW circuit The frost protection functions are guaranteed only if the appliance is constantly supplied with an adequate gas flow and is electrically powered the boiler is not blocked error code the appliance is not damaged Under the above conditions the ...

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Page 45: ...45 3 MAINTENANCE INSTRUCTIONS The following section contains specific instructions for proper product maintenance It is intended for the exclusive use of qualified technical personnel ...

Page 46: ...ing operation 0 1999 Total flame failures during combustion 5 Burner ignitions in CH mode 0 1999 Total burner ignitions in CH 1 100 times 6 Burner ignitions in mode DHW 0 1999 Total burner ignitions in DHW 1 100 times 7 Black out 0 1999 Total detected black out 1 10 times 8 Gas consumption in CH mode 0 1999 Total gas consumption in CH 1 100 m3 or Kg 9 Gas consumption in DHW mode 0 1999 Total gas c...

Page 47: ...er Nr par Parameters Values Parameter description Unit Default value 1 Outdoor temperature 50 C 50 C Detected temperature by the external temperature sensor C 2 Flow temperature CH 9 C 161 C Flow temperature of heating circuit C 3 Return temperature CH 9 C 161 C Return temperature from the heating system C 4 Hot water temperature DHW 9 C 161 C Hot water temperature C 5 Antifrost sensor temperature...

Page 48: ... in use 2 OFF OFF ON ON OFF OFF ON ON 3 OFF OFF OFF OFF ON ON ON ON 4 OFF Model REB KBI2424FF ON Model REB KBI2929FF OFF Not in use ON Model REB KBI3535FF 5 OFF OFF ON ON 6 OFF Low altitude installation to 900m asl ON High altitude installation above 900m asl 7 OFF Normal operation mode ON Microswitch setting change enabled 8 OFF ON For safety reasons the electronic board accepts the changes of th...

Page 49: ...7 OFF ON 8 OFF Not in use ON Not in use For safety reasons the electronic card accepts the changes of the microswitches one four and five only if the six and seven microswitches ON are enabled in advance otherwise the card ignores any change in the microswitches interpreting the displacement as accidental involuntary At the end of the operations it is necessary verify that the microswitches four a...

Page 50: ...ug from the socket remove the front panel verify that the type of gas selected by the microswitches of the bank SW1 coincides with the gas used in the system Nr SW1 1 OFF NG G20 ON Prop G31 OFF Air prop G230 ON LPG G30 2 OFF OFF ON ON 3 OFF OFF OFF OFF The specific procedure described in PCB paragraph must be followed in order to make any change to the microswitches effective Phase 2 Disconnect th...

Page 51: ...is Latches Repositioning the front panel Adjustment of CO2 Data plate update G C M S T W E QR code A CONDENSING BOILER G20 20mbar G230 20mbar G30 30mbar G31 37mbar P Pn kW Max Min Qn Hi kW Max Min 2H G20 20mbar NG I N New gas setting Combustion analysis plug Combustion analyzer M model type handelsbezeichnung modello modelo model μοντέλο model model modelo S serial number numéro de série seriennum...

Page 52: ...e detector Body controller Flow switch for DHW Emergency OFF button Circ pump Three way valve External pump Igniter Ceramic heaters A B Water level sensor CH Gas valve Overheating switch Pump speed control Chronothermostat Rinnai Thermostat different brand Condensation siphon level sensor FUSES 250V 3A GROUND GROUND COLOUR CODES R RED P PURPLE G GREY Y YELLOW W WHITE BK BLACK BL BLUE BR BROWN GR G...

Page 53: ...r and measure the resistance Return temperature thermistor CH Bk Bk Discharge temperature thermistor CH G G Exhaust temperature thermistor Bk Bk Rinnai Chronothermostat 9 W W DC 10V 14V External temperature thermistore 10 Br Br 20 C 26 7 29 8kΩ 10 C 16 5 18 1kΩ 0 C 9 6 12 2kΩ 10 C 6 3 7 9kΩ 20 C 4 2 5 2kΩ Disconnect the thermistor and measure the resistance Overheating circuit 12 Bk Gr DC 10V 14V ...

Page 54: ...29 7 5 8 34 88 7 9 kW DHW Input Max Min G31 Hi 24 5 5 8 29 6 5 8 34 88 7 9 kW DHW Output Max Min G20 23 5 5 4 28 4 5 4 33 1 7 4 kW DHW Output Max Min G230 kW DHW Output Max Min G30 23 5 5 4 28 4 5 4 33 4 7 4 kW DHW Output Max Min G31 23 5 5 4 28 4 5 4 33 4 7 4 kW Efficiency CH Max Min 80 C 60 C G20 Hi 97 2 92 0 97 2 92 0 97 2 92 2 Efficiency CH Max Min 80 C 60 C G230 Hi Efficiency CH Max Min 80 C ...

Page 55: ...e DHW 66 66 66 C Exhaust temperature min flow DHW min flow DHW 45 45 45 C Exhaust temperature rated output CH 80 60 C 11 7 13 6 17 0 g s Mass flow min flow CH 50 30 C 2 8 2 8 4 0 g s Mass flow rated flow max temperature DHW 11 7 13 6 17 0 g s Mass flow min flow DHW min flow DHW 2 8 2 8 4 0 g s Exhaust flue system diameters intake discharge Coaxial system Ø60 100 Parallel system Ø80 80 Ø60 60 mm De...

Page 56: ... 5 Useful efficiency 30 of rated heat output 30 C return η1 98 6 98 4 98 2 Auxiliary electricity consumption full load elmax 0 083 0 100 0 095 kW Auxiliary electricity consumption partial load elmin 0 065 0 066 0 066 kW Auxiliary electricity consumption in stand by mode PSB 0 003 0 003 0 003 kW Standby heat loss Pstby 0 065 0 065 0 065 kW Ignition burner power consumption Pign 0 000 0 000 0 000 kW...

Page 57: ...78 1 170 0 233 CO2 Max front panel on 9 5 0 6 12 0 0 6 11 0 0 6 CO2 Min front panel on 9 4 0 6 13 0 0 8 10 7 0 7 CO2 Max without front panel 9 4 0 6 11 9 0 6 10 8 0 6 CO2 Min without front panel 9 2 0 6 12 5 0 8 10 5 0 7 CO CO2 Max ppm 300 800 300 CH NOx Qn 80 C 60 C mg kWh 40 180 70 CH NOx 30 Qn temp return 30 C mg kWh 30 86 50 DHW CO CO2 Max ppm 300 800 300 DHW NOx Max Min mg kWh 35 30 165 50 60...

Page 58: ... electricity consumption DHW AEC 18 25 26 kWh annum Annual fuel consumption DHW AFC Hs 11 17 17 GJ annum Seasonal space heating energy efficiency CH ηs Hs 92 92 92 Water heating energy efficiency DHW ηwh Hs 84 88 86 Sound power level indoor LWA 40 44 43 dB Values setted with gas G20 20mbar High calorific value Hs According to Reg UE813 2013 Temperature control device Unit Supplier s name Rinnai It...

Page 59: ...re gauge tube locking screw 2 Press the tabs located behind the plate to release the pressure gauge 3 PCB Isolate the appliance electrically by disconnecting it from the electrical socket remove the front panel remove the plastic protection by pressing the tab 1 disconnect the electrical wiring on the PCB remove the fixing screw 2 and remove the electronic board Gas valve Isolate the appliance ele...

Page 60: ...and flame sensor from the heat exchanger 1 disconnect the fixing clips of the connection pipe to the pump to the three way valve and to the condensate siphon 2 unscrew the screws fixing the exchanger to the chassis 3 remove the exchanger Circulation pump Electrically isolate the appliance by disconnecting it from the electrical socket and closing the cocks of the heating and gas circuit remove the...

Page 61: ...boiler in the subsequent disassembly phases remove front panel pressure gauge and delivery connection joint disconnect the three way valve power cable 1 remove the connection tube to the expansion vessel 2 and the by pass 3 by removing the fixing clips disconnect the fixing clips to the delivery pipe and to the sanitary exchanger 4 remove the three way valve taking care not to damage the sealing o...

Page 62: ...zle and completely empty the CH circuit of the boiler Empty the exchanger completely so as not to flood the boiler in the subsequent disassembly phases remove the front panel remove the hot water sensor fixing clip 1 remove the fixing clip of the joint to the sanitary exchanger 2 remove the fixing clip of the joint to the filler 3 remove the joint Expansion vessel Electrically isolate the applianc...

Page 63: ...lity of the connection can be influenced by the presence of electromagnetic interference Some router models can communicate a fictitious DNS address even if they are not connected to the Internet as a consequence the WiFi connectivity symbol is still displayed on the remote control display for information contact the router manufacturer The router must support the 2 4Ghz frequency to be compatible...

Page 64: ...tphone press the home button 2 then select settings 3 8 select the WiFi item 4 from the settings menu and choose the item that shows the ID displayed on the command Rinnai _ 9 return to the My Rinnai application and press the OK button 5 10 select the WiFi network of your wireless router from the list shown 11 enter the network password 6 and confirm by pressing OK 7 12 app terminates registration...

Page 65: ...W 0 5 Remote control only Frequence range 2412 2472 MHz Max conveyed capacity 13 93 dBm Antenna type Internal Dipole Antenna Modulation DSSS OFDM Functioning modulation Duplex WiFi IEEE 802 11b g n 2 4GHz Communication Network WiFi 2 4GHz with safety protocol WPA WPA2 Operating temperature 20 70 Rinnai Korea Corporation 48 BAEKBEOM RO 577BEON GIL BUPYEONG GU INCHEON KOREA Tel 82 32 570 8300 Fax 82...

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Page 68: ...Italia srl Via Liguria 37 41012 Carpi MO Italy Tel 39 059 622 9248 Fax 39 059 622 4449 E mail info rinnai it Web www rinnai it V 1 190320 This edition replaces any previous publication ...

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