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Isolating valve

Filling valve

Draining valve

Check valve

Fig. 19. Cascaded Boilers, with External Domestic Hot Water Tank and Plate Heat Exchanger

Expansion vessel

Heating circuit pump

DHW circuit pump

Motorised 3-way valve (when needed for low temp systems)

Heating circuit

Plate heat exchanger

Drain

Safety group (automatic air relief valve, manome-

ter, safety valve), connected to the sewer.

External DHW tank

I-37

B-070343_EN • B

roduct

nstallatIon

Hydraulic Connections - Cascaded boilers, with External Domestic Hot Water Tank and

Plate Heat Exchanger

Содержание N 280 FS

Страница 1: ...EN installation and maintenance manual FOR THE INSTALLER AND THE USER 280 420 570 840 kW FLOOR STANDING CONDENSING BOILER B 070343 B NESTA PLUS h e a t i n g s y s t e m s...

Страница 2: ...and Low Loss Header I 38 Safety Instructions for the Gas Connection I 39 Gas Conversion I 40 Preparing the Boiler for Gas Conversion I 41 Adjustment of Fan Speeds I 42 Combustion Adjustment for Gas C...

Страница 3: ...rs with External Domestic Hot Water Tank and Low Loss Header I 38 Fig 21 Accessing the Gas Valve I 41 Fig 22 Gas Valve Shutter Pre adjustment for Propane I 41 Fig 23 Fan Speed Adjustment Typical Scree...

Страница 4: ...s provided herein The applicable regulations and standards The installer shall provide the end user with Any relevant explanation about the op eration of the appliance and the heat ing system as well...

Страница 5: ...ion that can cause serious damage to equip ment and or injuries or death Indicates an important instruction which if not followed could re sult in a hazardous situation that could cause damage to equi...

Страница 6: ...all not play with the appliance Any modification to the appliance and its components is strictly forbidden without the prior written consent of the manufacturer If components need to be replaced only...

Страница 7: ...adjusted in the factory to the gas pressure of 20mbar for gas type G20 Gas appliance category Gas type Gas appliance pressure Country of destination AIC Europe B V Graafschap Hornelaan 163A NL 6001 AC...

Страница 8: ...page I 64 for more information on cascade system possibilities Frost Protection The NESTA PLUS boilers have a built in an ti frost protection The pump and the burner are started as required when the r...

Страница 9: ...hanger 11 Transport holes 12 Flue gas temperature sensor 13 Flue gas connection with condensate dish 14 Condensate pipe 15 Condensate drain 16 Condensate trap protected by a removable cover 17 Condens...

Страница 10: ...ure sensor 13 Flue gas connection with condensate dish 14 Condensate pipe 15 Condensate drain 16 Condensate trap protected by a removable cover 17 Condensate level switch 18 Heating return connection...

Страница 11: ...Fig 5 NESTA PLUS 570 840 Components Top and Rear Views 5 4 30 23 20 22 3 1 2 23 22 30 21 19 31 18 16 17 14 13 12 11 15 10 9 8 7 3 6 G 11 B 070343_EN B Product Description...

Страница 12: ...ce code special mode messages and INFO lines It also allows to access the various user lev els of the controller menus 5 Chimney sweep function button This button allows to perform a measurement of th...

Страница 13: ...mode is activated a black line is displayed under the symbol Reduced mode This mode operates the appliance up to the temperature setpoint defined for the reduced operation and main tains it continuous...

Страница 14: ...020 B mm 1 970 1 970 1 970 1 970 C mm 760 760 865 865 D mm 1 595 1 595 1 845 1 845 E mm 1 560 1 600 1 825 1 868 F mm 1 310 1 310 1 555 1 555 G mm 410 435 765 665 H mm 185 185 225 225 I mm 115 115 145...

Страница 15: ...ction mm 180 200 200 250 combustion air inlet connection mm 150 150 250 250 condensate drain connection mm 26 7 26 7 26 7 26 7 min cross section area of air inlet mm2 17 662 17 662 49 062 49 062 Clear...

Страница 16: ...93 0 93 0 93 0 93 0 Electrical Data N 280 FS N 420 FS N 570 FS N 840 FS supply voltage frequency V Hz 230 50 3 3x400 50 protection class IP X4D boiler type and model N 280 FS N 420 FS N 570 FS N 840 F...

Страница 17: ...5 9 6 G31 Min output 10 7 10 6 10 6 10 7 Max output 11 0 11 0 11 1 11 2 O2 contents G20 Min output 5 9 6 4 6 0 5 3 Max output 4 3 4 3 4 1 4 1 G25 Min output 4 4 4 4 4 4 4 4 Max output 3 7 3 7 3 5 3 5...

Страница 18: ...hydraulic pressure drop at T 20k mbar 18 6 26 7 34 9 60 7 minimum operating pressure bar 0 8 maximum operating pressure bar 6 maximum boiler supply temperature C 90 Pressure Drop Curve Flow Rate N 28...

Страница 19: ...pliance Do not modify or deactivate any compo nent nor any safety device in the system Do not operate the appliance when the casing is open IF YOU SMELL GAS DO NOT Use an open flame Smoke Use electric...

Страница 20: ...staller Check regularly that there is no error code displayed on the control panel screen Call your installer as required When cleaning the appliance cabinet panels do not use sol vents or aggressive...

Страница 21: ...the Appliance The first start up of the boiler after its installation must be performed by a qualified professional according to the procedure in Start up and Combus tion Adjustments on page I 53 Con...

Страница 22: ...1 to scroll through the menu until Heating circuit 1 3 is highlighted 3 Press the OK button 2 to validate the selection 4 Rotate the knob 1 to select Room comfort setpoint 5 Press the OK button 2 to...

Страница 23: ...s the Heating Mode Selection button 4 to go back to the home screen Date and time 1 Press the OK button 2 to access the end user menu 2 Rotate the knob 1 to scroll through the menu until Time and Date...

Страница 24: ...t the required language DE EN FR IT NL ES DA SV FI PT 5 Press the OK button 2 to save the selection 6 Press the Heating Mode Selection button 4 to go back to the home screen Unit Selection 1 Repeat st...

Страница 25: ...PSI C bar Time Program heating circuit 1 Preselection Mo Su Mo Su Mo Fr Sa Su Mo Tu We Th Fr Sa Su Mo Su day or range selection 1st phase on 6 00 Adjust as required day or range selection 1st phase of...

Страница 26: ...hase lockout pos Service special operation Chimney sweep function Off On Off Burner output Partial load Full load Max heating load Max heating load Manual control Off On Off Diagnostics heat genera ti...

Страница 27: ...al circuit isolate the electri cal supply of the appliance through the external power cutting device fuse circuit breaker etc All connections electrical flue pipe hydraulic gas must be carried out in...

Страница 28: ...ansport the boiler on the pallet as close to the installation location as practical Unpacking the Product The boiler is protected by a wooden packaging lined with rubber protection at the contact surf...

Страница 29: ...nd In stalling the Access Panels on page I 32 and the condensate trap cover and conden sate trap refer to Removing Cleaning and Installing the Condensate Trap on page I 58 2 Slide the fork lift arms u...

Страница 30: ...wer system or if a condensate neu tralisation system needs to be installed place the appliance on a base with sufficient height recommended slope to the sewer 3 Fig 13 Components in their Storage Loca...

Страница 31: ...d screws Two air inlet types are provided with the boiler for installation one for a C type connection and one for a B type See Fig 15 below i X4 X4 Fig 15 Air Inlet Installation 4 C type connection B...

Страница 32: ...ear panels 1 Top remove nine screws Retain for reinstalla tion 2 Bottom remove six screws Retain for reinstal lation 3 High voltage terminal strip access panel re fer to Accessing the High Voltage Ter...

Страница 33: ...ling the rear Top and Bottom Panels X9 X6 Rear Top Panel access to water temp limit switch wa ter temp sensor air vent and pressure sensor Rear Bottom Panel access to flue temp sensor and re turn temp...

Страница 34: ...vessel that is appropriate for the appliance power and the system size and the increase in temperature and pressure The use of antifreeze in the pri mary circuit will lead to a reduc tion in the heati...

Страница 35: ...m needs to be refilled frequently check for leaks in the primary circuit Inhibitors may be used according to stand ard EN 14868 An air separator on the appliance supply circuit combined with a dirt se...

Страница 36: ...Check valve Expansion vessel Removable filling hose Circulating pump Drain Safety group automatic air relief valve manometer safety valve con nected to the drain Fig 18 Typical Heating System To make...

Страница 37: ...cuit pump DHW circuit pump Motorised 3 way valve when needed for low temp systems Heating circuit Plate heat exchanger Drain Safety group automatic air relief valve manome ter safety valve connected t...

Страница 38: ...ow Loss Header Expansion vessel Heating circuit pump DHW circuit pump Heating circuit Low loss header Drain External DHW tank Safety group automatic air relief valve manome ter safety valve connected...

Страница 39: ...e sure to comply with all appli cable local regulations and stand ards The circuit will be equipped with a meter and a gas pressure regulator if required Do not exceed the maximum gas pressure The con...

Страница 40: ...th G25 natural gas or G31 propane gas Gas conversion to this appliance does not require component replacement only adjustments of gas valve through shutter and offset screws of boiler settings fan spe...

Страница 41: ...to Propane only rotate the gas valve shutter screw 1 towards the symbol to reduce the opening see Fig 22 N 280 FS N 420 FS 2 full rotations N 570 FS N 840 FS 1 full rotation Preparing the Boiler for...

Страница 42: ...d speed LF Program number 9524 12 Press OK 2 to modify the value The value starts flashing 5 13 Rotating the knob 4 adjust the minimum fan speed for the gas type and boiler type according to the table...

Страница 43: ...ation button 2 The mod ulation indicator 5 is displayed in Press the OK button 3 the indicator 5 starts flashing Rotate the knob 4 to decrease to 0 for mini mum power Press the OK button 3 to confirm...

Страница 44: ...the applicable local regulations and stand ards It must be cleaned and serviced regularly Make sure to secure the flue piping to a solid structure Exclusively use provided brackets to support the flu...

Страница 45: ...e pipe and the sleeve end stop The flue system should be fitted with an inspection opening Do not exceed the maximum length rec ommended for the product when con necting the flue pipes or the system p...

Страница 46: ...y termi nate in zones of different pressures Additional requirement Orifices may NOT terminate on opposite walls of the building Combustion circuit Sealed Connection Via separate ducts Air inlet flue...

Страница 47: ...overall installation resistance of each boiler should not exceed 200 Pa including maximum wind condition measured at the out let of each boiler at maximum output Please contact your AIC representa ti...

Страница 48: ...voltage terminal strip Route the electrical cables through the holes at the back of the appliance i When the appliance is con nected to the electrical net work it must be earthed Make sure that a fus...

Страница 49: ...nels on page I 32 2 Remove one screw 1 at the bottom of the electronic bay access panel Retain for rein tallation 3 Lift and remove access panel 2 OFF Routing the Cables Accessing the Low Voltage Term...

Страница 50: ...ultifunctional BX2 Cascade return temp sensor Multifunctional UX2 Analog output 0 10V UX3 Analog output 0 10V NO Safety Flow Switch Door Temp Limit multifunctional Boiler Pump Heating Circuit Pump DHW...

Страница 51: ...GND PWM Gas Valve X15 Boiler pump PWM B9 Outside sensor B38 DHW Sensor BX1 System temp sensor Multifunctional BX2 Cascade return temp sensor Multifunctional UX2 Analog output 0 10V UX3 Analog output 0...

Страница 52: ...of repeated indication of low pressure in the water circuit check for leaks and repair as required Once the lling of the heating circuit is complete close the lling valve Check that all connections el...

Страница 53: ...o the home screen 3 Activate the required heating mode by press ing the heating mode selection button 1 4 Allow the boiler to operate for a few minutes 5 Connect the gas analyser probe to the meas uri...

Страница 54: ...liance permanently Inspection and maintenance tasks must be carried out by a quali ed and certi ed professional at least once a year Water owing out of the drain valve can be extremely hot Use extreme...

Страница 55: ...and that the combustion parameters CO CO2 are according to require ments See Combustion and Gas Data on page G 17 X X Check the gas pressure and that the gas supply shut off devices are operating pro...

Страница 56: ...he desired heating mode if required 3 Activate the DHW mode as required 4 Allow the appliance to operate for a few min utes then bleed the air from the system Follow on Task s 1 Check there is no leak...

Страница 57: ...their gasket must be discarded and replaced by new ones OFF i i 2 Wearing protective gloves and a face mask remove insulation from the upper plate Re tain for reinstallation 3 Release two screws 1 fro...

Страница 58: ...einstallation 3 Remove the cover gasket 11 Discard 4 Wipe clean the condensate level switch 12 attached to the cover Remove and replace as required 5 Clean the deposits in the condensate trap 8 using...

Страница 59: ...Fig 33 Cleaning the Condensate Pipe and Trap 1 2 3 4 5 6 7 8 9 9 10 11 12 I 59 B 070343_EN B Maintenance...

Страница 60: ...sk clean the burner tube 5 with compressed air to remove residues If it is in bad condition after cleaning replace it 3 Clean the combustion chamber see Check ing and Cleaning the Combustion Cham ber...

Страница 61: ...X6 X5 X8 X8 Fig 35 Removing and Installing the Burner NESTA PLUS 280 420 Fig 36 Removing and Installing the Burner NESTA PLUS 570 840 1 1 2 2 3 3 4 4 7 7 5 5 6 6 I 61 B 070343_EN B Maintenance...

Страница 62: ...ld be per formed through the burner open ing Do not remove the burner plate as it could damage the seals and insulation 1 Using a torch lamp visually check the condi tion of the combustion chamber If...

Страница 63: ...ion supply needs to be provided with power supply and a bus connection Web Server Module Through the use of this module you can connect to an Ethernet and get remote access to the boiler and all the h...

Страница 64: ...device address 1 assumes the role of the cascade master and the others are slaves The master boiler activates the required functions and shows the additional menus with the parame ters for use with th...

Страница 65: ...ate heat exchanger Low loss header 8 Air vent 9 DHW Pump 10 DHW Storage tank 11 DHW Storage tank temperature sensor 12 Check valve 13 Water pressure sensor 14 Room unit Room thermostat 15 Mixing valve...

Страница 66: ...oning screen will come up It can be exited without adjustments by pressing the ESC 3 button If the parameters are not set and saved the screen will open automatically the next time the boiler is turne...

Страница 67: ...r range selection 2nd phase off h min Eu 505 day or range selection 3rd phase on h min Eu 506 day or range selection 3rd phase off h min Eu 516 Default values No Yes No Time Pro gram 5 Eu 600 Select M...

Страница 68: ...E 744 Swi on ratio room stat C 746 Delay heat request 0 s E 750 Room influence 20 E 760 Room temp limitation 1 C E 770 Boost heating 3 C E 780 Quick setback Off To reduced setpoint To frost prot setp...

Страница 69: ...geover None Protection Reduced Comfort Automatic Protection Boiler Eu 2214 Setpoint manual control 60 C Fault Eu 6705 SW Diagnostic code Eu 6706 Burn ctrl phase lockout pos Service spe cial opera tion...

Страница 70: ...or Short circuit or Open circuit boil er return sensor Check connection and sensor Replace as required 46 Cascade return tempera ture sensor error Check connection and sensor Replace as required 47 Co...

Страница 71: ...mation 109 Supervision boiler temper ature Contact AIC technical support 110 STB SLT lockout No heat removal STB interrup tion possible short circuit in the gas valve internal fuse faulty Allow device...

Страница 72: ...threshold not reached Fan possibly defective speed threshold set wrongly Check parameters connections and component Replace as required 162 Air pressure switch error Air pressure switch does not close...

Страница 73: ...or Check connection and sensor Replace as required 270 Temperature difference heat exchanger too large Check the heating system external hy draulic components 317 Mains frequency outside permissible r...

Страница 74: ...evice address 353 Sensor B10 missing Common flow sensor missing Check parameters connection and com ponent 371 Flow temperature heating circuit 3 Check the circuit for fault insulation and heat losses...

Страница 75: ...l as required 433 Temperature primary heat exchanger too high Check the heating system external hy draulic components Maintenance Messages Code Meaning Action 1 Number of burner hours run exceeded Con...

Страница 76: ...ness of connections and circuit 2 Check that pressure measuring points are closed Unburned gas smell Leak in flue gas circuit 1 Check tightness of connections 2 Check there are no obstructions in the...

Страница 77: ...rner Wrong chimney pressure drop Check chimney pressure drop Temperature too high compared to setpoint Boiler controller malfunction 1 Check temperature setpoint 2 Check controller operation 3 Check p...

Страница 78: ...ing circuits Floor heating Radiators Other Cascade Y N Number of boilers Water Water hardness at start up mol m or mg l System volume L Additive s Antifreeze Y N Type Quantity Gas Type Heating value k...

Страница 79: ...Flue gas Open or closed system Dimensions of combustion air open ings if closed system cm2 Material of flue piping Diameter and length of piping sys tem mm m Chimney system engineered by Calculated pr...

Страница 80: ...ontroller Other controller Y N Type Optional modules installed Y N Type Optional items installed Y N Outdoor sensor Y N Type Room unit s Y N Type Others Miscellaneous The end user has received all rel...

Страница 81: ...I 81 B 070343_EN B Additional Information for the Installer Combustion Parameters Log Sheet CO2 Flue gas T Remarks Name Date Signature...

Страница 82: ...I 82 B 070343_EN B Additional Information for the Installer Water Parameters Log Sheet Water Filling Date Water Top up Date Water Quality Water Treatment Remarks Name signature...

Страница 83: ...I 83 B 070343_EN B Declaration of Conformity...

Страница 84: ...www myaic eu AIC Europe B V Graafschap Hornelaan 163A NL 6001 AC Weert The Netherlands...

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