Baxi Power HT 1.280 Installation, Operation And Maintenance Manual
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Baxi Power HT 1.280 Installation, Operation And Maintenance Manual

Condensing gas boiler
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Installation operation and maintenance manual
Condensing gas boiler
Power HT 1.230 - 1.280 - 1.320

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Summary of Contents for Baxi Power HT 1.280

  • Page 1 Installation operation and maintenance manual Condensing gas boiler Power HT 1.230 - 1.280 - 1.320...

  • Page 2: Table Of Contents

    Table of contents Regarding this Manual......................... Content of this manual........................Overview table............................ Used symbols............................For whom is this manual intended?....................... Safety..............................Usage according to purpose......................... General safety instructions........................Regulations and standards........................Liquid gas under ground........................CE-Marking............................Conformity declaration........................Technical Data............................ Dimensions and connections........................
  • Page 3 Setting up heating operation........................ 43 Setting up DHW operation........................44 Setting room setpoint.......................... 44 Display information..........................45 Error message............................. 45 Servicing message..........................46 Emergency mode (Manual control)......................46 7.10 Restore standard values........................46 Programming............................47 Programming procedure........................47 Modification of parameters........................48 Setting table............................

  • Page 4: Regarding This Manual

    Regarding this Manual 1. Regarding this Manual Read this instruction thoroughly before operating the device! 1.1 Content of this manual boilers of the series Power HT for standard application with 1 pump heating circuit and 1 DHW storage tank. Further applications can be made available (mixing heating circuit, solar connecti- on, etc.) by installing extension modules (clip-ins).

  • Page 5: Used Symbols

    Regarding this Manual 1.3 Used symbols Danger! Danger exists for body and life in case it is not observed. Danger of electric shock! In case it is not observed, danger from electricity exists for body and life! Caution! If warning is not observed, danger exists for environment and the device. Note/tip: Here, you can find background information and useful tips.

  • Page 6: Safety

    Safety 2. Safety Danger! Absolutely, observe the following safety information! Otherwise you are endangering yourself and others. 2.1 Usage according to purpose The condesing boilers of the series Power HT three are intended to be used ac- cording to EN 12828 as heat generators in drinking water-heating plants. They conform to EN 676, DIN 4702 Part 6 and EN 677, installation type B and C In case of the installation types C...

  • Page 7: Regulations And Standards

    Safety 2.3 Regulations and standards The installation should comply with relevant British Standard Speci cations, Co- des of Practice and current Building Regulations, together with any special regio- nal requirements of the Local Authorities, Gas undertaking and Insurance I.E.E. Re- gulations for the Electrical Equipment of Buildings.

  • Page 8: Conformity Declaration

    Safety 2.6 Conformity declaration 358 436 08.10...

  • Page 9: Technical Data

    3. Technical Data 3.1 Dimensions and connections Fig. 1: Dimensions and connections flow DN 65 return DN 65 Model Power HT 1.230 Power HT 1.280 Power HT 1.320 Dimension A 1171 1264 1357 Dimension B R 1½" R 1½" R 1½"...
  • Page 10 Technical Data 358 436 08.10...

  • Page 11: Technical Data

    Technical Data 3.2 Technical Data Tab. 2: Technical Data Model Power HT 1.230 Power HT 1.280 Power HT 1.320 N. identif. prodotto CE-0085 CL 0072 Nominal heat input range Natural gas heating 35,0-215,0 42,0-260,0 48,0-300,0 heating 48,0-215,0 58,0-260,0 58,0-300,0 Nominal heat output range Natural gas 80/60°C...
  • Page 12 Technical Data 358 436 08.10...

  • Page 13: Wiring Diagram

    Technical Data 3.3 Wiring Diagram Fig. 2: Wiring Diagram 358 436 08.10...

  • Page 14: Sensor Value Tables

    Technical Data 3.4 Sensor value tables Tab. 3: Resistance values for outside temperature sensor ATF Temperature [°C] Resistance [Ω] 8194 6256 4825 3758 2954 2342 1872 1508 1224 1000 Tab. 4: Resistance values for flow sensor KVS, drinking water sensor TWF, re- turn sensor KRV, sensor B4 Temperature [°C] Resistance [Ω]...

  • Page 15: Before Installation

    Before installation 4. Before installation 4.1 Inlet and outlet air openings Power HT let and outlet air openings are necessary. It has to be checked that these exist and are fully functional. Caution! It has to be pointed out to the customer that these inlet and outlet air openings must always be functional, i.e.
  • Page 16 Before installation 5. Mount lower rear wall (2) 6. Glue upper cover plate (5) Converting the supply air connection In the following picture the conversion of the top passage to the side or rear passa- ge of the supply air connection is represented. Fig.

  • Page 17: Corrosion Protection

    The instructions of the additive manufacturer have to be observed. Released additives Currently, the following agents have been approved by BAXI: - “Full heating protection“ from Fernox - “Sentinel 100“ from GE Betz As a single frost protection agent, also Tyfocor®...

  • Page 18: Notes For Installation Location

    Before installation 4.5 Notes for installation location Caution! Danger of damage from water! The following has to be observed for the installation of the Power HT: In order to prevent damage due to water, particularly due to leakages in the DHW storage tank, suitable precautionary measures should be taken regarding installa- tion.

  • Page 19: Space Requirement

    Before installation 4.6 Space requirement Fig. 5: Recommended space requirement Power HT 1.230 Power HT 1.280 Power HT 1.320 Dimensions A 80 cm 90 cm 100 cm Dimensions B 50 cm Dimensions C 50 cm Dimensions D 50 cm 358 436 08.10...

  • Page 20: Transportation

    Before installation 4.7 Transportation Fig. 6: Transport equipment For transporting the boiler to the installation location using a crane, transport eyes found on the top of the boiler ( Fig. 6, Pos. 1) can be used. Remove the centre cove- ring lid of the Power HT to do this.
  • Page 21 Before installation 358 436 08.10...

  • Page 22: Application Examples

    Before installation 4.8 Application examples 358 436 08.10...
  • Page 23 Before installation 358 436 08.10...
  • Page 24 Before installation 358 436 08.10...
  • Page 25 Before installation 358 436 08.10...
  • Page 26 Before installation 358 436 08.10...
  • Page 27 Before installation 358 436 08.10...
  • Page 28 Before installation 358 436 08.10...
  • Page 29 Before installation 358 436 08.10...
  • Page 30 Before installation 358 436 08.10...

  • Page 31: Legend

    Before installation 4.9 Legend 358 436 08.10...

  • Page 32: Installation

    Installation 5. Installation 5.1 Connect heating circuit Note: It is recommended that a lter be tted in the heating return. In the case of old plants, the whole heating plant should be thorougly ushed before instrallati- Safety valve In case of open heating plants, connect the safety header and return pipeline; in case of closed heating plants install the expansion vessel and safety valve.

  • Page 33: Gas Connection

    Installation Modell Flue Size Maximum Flue Length incl. one 87° elbow Power HT .1230 Ø 160 mm 30 m Power HT .1230 Ø 200 mm 60 m Power HT .1280 Ø 160 mm 18 m Power HT .1280 Ø 200 mm 60 m Power HT .1320 Ø...

  • Page 34: Check Tightness

    Installation 5.6 Check tightness Danger! Danger of life from gas! The entire gas inlet pipe, particularly the joints must be checked for leakages befo- re commissioning. The gas burner valve on the gas burner must be pressure- tested at maximum of 150 mbar .
  • Page 35 Installation Moreover, the following parametres of the LMS control have to be adapted - see the values of the following tables: Power HT 1.230 Power HT 1.280 Power HT 1.320 Function Prog. no. Setting level Natural Natural Natural Boiler 2331...

  • Page 36: Controller Stop Mode (Manual Adjustment Of Burner Load)

    Installation 5.10 Controller Stop Mode (Manual Adjustment of Burner Load) For setting and controlling the CO values the Power HT in operated in the control stop function . Boiler temperature > 3 s Press operation mode button Heating Operation for approximately 3 seconds =>...

  • Page 37: Check And Adjust Co2 Content

    Installation 5.11 Check and adjust CO2 content Fig. 7: Gas valve 1 Compensation line 4 Gas pressure monitor 2 Adjustment screw for full load (Allen key 3 mm) 5 Adjustment screw for low load (Torx TX 40) 3 Measuring nozzle for inlet pressure Set CO -content at max.

  • Page 38: Electrical Connection (General)

    Installation 5.12 Electrical connection (general) Danger of electric shock! All electrical work in connection with the installation must only be carried out by a trained electrician! - Mains Voltage AC 230 V +6% -10%, 50 Hz In Germany the VDE and local regulations and in all other countries, the pertinent regulations should be followed during installation.
  • Page 39 Installation Connection sensor / components Danger of electric shock! Danger of life, if handled inappropriately! The wiring diagram must be followed! Optional accessories must be tted and connected according to the instructions provided. Connect to the mains. Check earthing. Outdoor temperature sensor (included in delivery) The outdoor temperature sensor is located in the accessory bag.

  • Page 40: Commissioning

    Commissioning 6. Commissioning Danger! The Commissioning must only be carried out by an approved heating spe- cialist! The heating specialist checks the tightnesss of connections, the correct functioning of all regulating, control and safety installations and measures the combustion values. In case of incorrect performance possible danger of conside- rable damage to persons, environment and property! Caution! In dusty environment, e.g.

  • Page 41: Temperatures For Heating And Drinking Water

    Commissioning Set the required room temperature on the rotating knob of the control unit 6.3 Temperatures for heating and drinking water The information in the section Programming for setting the temperatures for hea- ting and domestic hot water. Note: The times for DHW will be set in time programme 4/ TWW. For reasons of comfort, the start of DHW heating should be approximately 1 hour before start of heating! 6.4 Individual time programme...

  • Page 42: Operation

    Operation 7. Operation 7.1 Operating elements Fig. 9: Operating elements Boiler temperature Boiler temperature 1 Operating switch 8 OK-button (acknowledgment) 2 Reset button 9 Information button 3 Reset safety temperature limiter (STB) 10 Rotating knob 4 Blanking plate 11 Chimney-sweep button 5 Operator section (ISR) 12 ESC-button 6 Operating mode button heating operation...

  • Page 43: Displays

    Operation 7.2 Displays Fig. 10: Symbols in the display sRE081A Meaning of the displayed symbols Heating at comfort nominal value Servicing message Heating at reduced nominal value Fault message Heating at frost protection setpoint Info Information level activated Current process PROG Setting level activated ECO Heating switched off (Automatic sommer/ Holiday function activated...

  • Page 44: Setting Up Dhw Operation

    Operation Continuous Operation comfort or reduced: - Heating operation without time programme - Protection functions activated - Automatic summer/winter switch-over is not activated - Automatic day heating limit is not activated Protection operation : - No heating operation - Temperature according to frost protection setpoint - Protection functions activated - Automatic summer/winter switch-over is not activated - Automatic day heating limit is not activated...

  • Page 45: Display Information

    Operation Setting reduced setpoint: 1. Press OK button 2. Select heating circuit. 3. Press OK button 4. Select parameter Reduced setpoint 5. Press OK button 6. Set reduced setpoint with the control knob 7. Press OK button 8. Leave programming level by pressing the operation mode button heating ope- ration 7.6 Display information Various temperatures and messages can be called up by pushing the information...

  • Page 46: Servicing Message

    Operation 7.8 Servicing message If the maintenance sign appears in the display, a maintenance message exists or the heating system is in special operation. - Press information button (i) - further information can be called up (see section 9.13 Maintenance code- table). Note: The maintenance message has not been activated by the setting in the fac- tory.

  • Page 47: Programming

    Programming 8. Programming 8.1 Programming procedure The selection of the setting levels and menu points for end users and heating spe- cialists is carried out by means of the following diagram: Fig. 11: Selection of setting levels and menu points Basic display Boiler temperature Press...

  • Page 48: Modification Of Parameters

    Programming 8.2 Modification of parameters Settings, which are not directly modified via the front panel, have to be carried out in the setting level. The basic programming processs is depicted in the following by the setting of time and date. Boiler temperature Basic display: Press...
  • Page 49 Programming Time and date Select with set the minutes Hours / minutes (e.g. 30 minutes). Time and date Hours / minutes Acknowledge selection with Press heating circuit operation mode button to return to the basic display. Boiler temperature The previous menu point will be called-up by pressing the ESC-button without ta- king over previously modified values.

  • Page 50: Setting Table

    Programming 8.3 Setting table - Not all parameters displayed in the display are listed in the setting table. - Depending on the plant configuration, not all parameters listed in the setting table are displayed in the display. - In order to get to the setting levels: Enduser (E), Commissioning (I) and Specialist (F), press OK button;...
  • Page 51 Programming Function Prog. Standard value Level Action occupancy button None None | Heating circuit 1 | Heating circuit 2 | Commonly This parameter is only visible in the room device! Readjustment room sensor 0.0°C This parameter is only visible in the room device! Software version Radio Parameter only visible, if wireless room device exists!
  • Page 52 Programming Function Prog. Standard value Level 1st phase off 22:00 (h/min) 2nd phase on --:-- (h/min) 2nd phase off --:-- (h/min) 3rd phase on --:-- (h/min) 3rd phase off --:-- (h/min) Default values No | Yes Time program 3 / HC3 Pre-selection Mo-Su Mo - Su Mo-Su | Mo-Fr | Sa-Su | Mo |Tu |We | Th | Fr | Sa | Su...
  • Page 53 Programming Function Prog. Standard value Level --.-- (day. month) Operating level Frost Protection Frost protection | Reduced Holidays heating circuit 2 Parameter only visible, if heating circuit 2 exists! Preselection Period 1 Period 1 ... 8 Start --.-- (day. month) --.-- (day.
  • Page 54 Programming Function Prog. Standard value Level Continuous pump operation No | Yes Overtemp prot pump circuit Off | On Mixing valve boost 5°C Actuator running time 120 s Floor curing function Off | Functional heating | Curing heating | Functional/curing heating | Curing/Functional heating | Manually Floor curing setp manually 25°C...
  • Page 55 Programming Function Prog. Standard value Level Room influence 1050 20 % Room temp limitation 1060 1°C Boost heating 1070 5°C Quick setback 1080 Down to reduced set- Off | Down to reduced setpoint | Down to frost prot setpoint point Optimum start control max 1090 0 min...
  • Page 56 Programming Function Prog. Standard value Level Heating curve slope 1320 1.50 Heating curve displacement 1321 0.0°C Heating curve adaption 1326 Off | On Summer/winter heating limit 1330 18°C 24-hour heating limit 1332 -3°C Flow temp setpoint min 1340 8°C Flow temp setpoint max 1341 80°C Flow temp setpoint room stat...
  • Page 57 Programming Function Prog. Standard value Level Optg mode changeover 1500 Protection None | Protection | Reduced | Comfort | Automatic DHW-Operating mode 1600 Off | On | Eco Nominal setpoint 1610 55°C Reduced setpoint 1612 40°C Release 1620 Time programmes HCs 24h/day | Time programs HCs | Time program 4/DHW | Low tariff | Time program 4/DHW or LT Charging priority...
  • Page 58 Programming Function Prog. Standard value Level With buffer storage tank 1928 No | Yes With prim contr/system pump 1930 No | Yes Swimming pool circuit Flow temp setp cons request 1959 70°C DHW charging priority 1974 No | Yes Excess heat draw 1975 Off | On With buffer storage tank...
  • Page 59 Programming Function Prog. Standard value Level Temp differential nominal 2317 10°C Pump modulation 2320 Demand None | Demand | Boiler setpoint | Temp differential nominal | Burner output Pump speed min 2322 Pump speed max 2323 100 % Output nominal 2330 50 kW Output basic stage...
  • Page 60 Programming Function Prog. Standard value Level Temp diff on 3810 8°C Temp diff off 3811 4°C Charg temp min DHW st tank 3812 - - - °C Temp diff on buffer 3813 - - - °C Temp diff off buffer 3814 - - - °C Charging temp min buffer...
  • Page 61 Programming Function Prog. Standard value Level Charging temp max 4750 80°C Recooling temp 4755 60°C Recooling DHW/HCs 4756 Off | On Recooling collector 4757 Off | Summer | Always With solar integration 4783 No | Yes Temp diff on return div 4790 8°C Temp diff off return div...
  • Page 62 Programming Function Prog. Standard value Level With buffer 5090 No | Yes With prim contr/system pump 5092 No | Yes With solar integration 5093 No | Yes Pump speed min 5101 Pump speed max 5102 100% Speed Xp 5103 35°C Speed Tn 5104 120 s...
  • Page 63 Programming Function Prog. Standard value Level External solar exchanger 5841 Jointly Jointly | DHW storage tank | Buffer storage tank Combi storage tank 5870 No | Yes Relay output QX1 5890 Boiler pump Q1 None | Circulating pump Q4 | El imm heater DHW K6 | Collector pump Q5 | Cons circuit pump VK1 Q15 | Boiler pump Q1 | Alarm output K10 | Heat circuit pump HC3 Q20 | Cons circuit pump VK2 Q18 | System pump Q14 | Heat gen shutoff valve Y4 | Solid fuel boiler pump Q10 |...
  • Page 64 Programming Function Prog. Standard value Level Function input H4 5970 None None | Optg mode change HCs+DHW | Optg mode changeover DHW | Optg mode changeover HCs | Optg mode changeover HC1 | Optg mo- de changeover HC2 | Optg mode changeover HC3 | Heat generation lock | Error/alarm message | Consumer request VK1 | Consumer requ- est VK2 | Consumer request VK3 | Excess heat discharge | Release swi pool solar | Operating level DHW | Operating level HC1 | Operating le-...
  • Page 65 Programming Function Prog. Standard value Level Relay output QX22 module 3 6037 None Parameters see Relay output QX1 (prog.-no. 5890)! Relay output QX23 module 3 6038 None Parameters see Relay output QX1 (prog.-no. 5890)! Sensor input BX21 module 1 6040 None Parameters see Sensor input BX1 (prog.-no.
  • Page 66 Programming Function Prog. Standard value Level Funct value 2 H2 module 3 6068 PWM-output P1 6085 None None | Boiler pump Q1 | DHW pump Q3 | DHW interm circ pump Q33 | Heat circuit pump HC1 Q2 | Heat circuit pump HC2 Q6 Heat circuit pump HC3 Q20 | Collector pump Q5 | Solar pump ext exch K9 | Solar pump buffer K8 | Solar pump swi pool K18 Sensor type collector...
  • Page 67 Programming Function Prog. Standard value Level SW diagnostic code 6705 Burn ctrl phase lockout pos 6706 Reset alarm relay 6710 No | Yes Flow temp 1 alarm 6740 - - - min Flow temp 2 alarm 6741 - - - min Flow temp 3 alarm 6742 - - - min...
  • Page 68 Programming Function Prog. Standard value Level Manual control 7140 Off | On Controller stop function 7143 Off | On Controller stop setpoint 7145 50 % Telephone customer service 7170 PStick storage pos 7250 PStick Reg data set 7251 PStick command 7252 No operation No operation | Reading from stick | Writing on stick...
  • Page 69 Programming Function Prog. Standard value Level Contact state H2 module 2 7849 Open | Closed Voltage signal H2 module 3 7851 Contact state H2 module 3 7852 Open | Closed Contact state H4 7860 Open | Closed Frequency H4 7862 Contact state H5 7865 Open | Closed...
  • Page 70 Programming Function Prog. Standard value Level Priority/state source 9 8116 Parameters see Priority/state source 1 (prog.-no. 8100)! Priority/state source 10 8118 Parameters see Priority/state source 1 (prog.-no. 8100)! Priority/state source 11 8120 Parameters see Priority/state source 1 (prog.-no. 8100)! Priority/state source 12 8122 Parameters see Priority/state source 1 (prog.-no.
  • Page 71 Programming Function Prog. Standard value Level Solar ctrl elem swi pool 8502 Collector temp 1 8510 Collector temp 1 max 8511 Collector temp 1 min 8512 dt collector 1/DHW 8513 dt collector 1/buffer 8514 dt collector 1/swimming pool 8515 Solar flow temp 8519 Solar return temp 8520...
  • Page 72 Programming Function Prog. Standard value Level Flow temp 2 8773 Flow temp setpoint 2 8774 Room thermostat 2 8779 No demand | Demand Heating circuit pump 3 8790 Off | On Heat circ mix valve 3 open 8791 Off | On Heat circ mix valve 3 close 8792 Off | On...
  • Page 73 Programming Function Prog. Standard value Level Relay output QX2 9032 Off | On Relay output QX3 9033 Off | On Relay output QX21 module 1 9050 Off | On Relay output QX22 module 1 9051 Off | On Relay output QX23 module 1 9052 Off | On Relay output QX21 module 2...

  • Page 74: Explanations For Setting Table

    Programming Function Prog. Standard value Level State solid fuel boiler State buffer storage tank State swimming pool Year Date Time Telephone customer service 1) Eu = End user; C = Commissioning; E = Engineer Note: Parameters with the program numbers 1- 54 are individual parameters of the operating unit and the room unit and may, therefore, be set differently on both devices.
  • Page 75 Programming Operator section save basic The data of the control will be written into the room unit (only available for room settings unit). (30) Caution! The data of the room unit will be overwritten! With this, the individual programming of the control in the room unit can be ensured. Operator section activate The data of the operating unit or room unit will be written into the control.
  • Page 76 Programming Delete all devices The radio connections to all devices will be cancelled under programme number (140) 140. Time programmes Note: The time programme 1 and 2 are always assigned to the respective heating circuits (1 - 3) and only displayed if these heating circuits are present and also tur- ned on in the menu Configuration (prog.-no.
  • Page 77 Programming End of holiday Input of holiday end (643, 653, 663) Operation level Selection of the operation level (reduced setpoint or frost protection) for the holi- (648, 658, 668) day programme Note: A holiday period ends each time on the last day at 12:00 AM (00:00). The holiday programmes are only activated in the operation mode “...
  • Page 78 Programming Fig. 12: Heating curve diagram 2,75 2,25 ° C 1,75 1,25 0,76 0,25 ° C Outside temperature Heating curve displacement Correction of the heating curve by parallel shifting in case of generally too high or (721, 1021,1321) too low room temperature. Heating curve adaption Automatic adaptation of the heating nominal line to the actual circumstances, (726, 1026, 1326)
  • Page 79 Programming Fig. 13: Summer/winter heating limit Outside temp attenuated (Prog.no. 8703) SWHL SWHL Summer/winter heating limit Temperature Time 24-hour heating limit The 24-hour heating limit shuts off the heating circuit if the current outside tem- (732, 1032, 1332) perature increases up to the difference set here of the current operating level (re- duced or comfort set point).
  • Page 80 Programming Room influence The flow temperature is calculated using the heating curve as a factor of the out- (750, 1050, 1350) side temperature. This type of control assumes that the heating curve is set cor- rectly, since the control does not take any room temperature into consideration in this setting.
  • Page 81 Programming Boost heating The boost heating is active if the room set point is switched from protection mo- (770, 1070, 1370) de or reduced mode to comfort mode. During the boost heating the the room set point is increased to the value set here. This causes the actual room temperature to increase to the new set point within a short period of time.
  • Page 82 Programming -10°C 10,3 -15°C -20°C Duration of the quick setback for setback by 4°C in h: Building time constant (configuration, programme number 6110) Outside temperature composite: 0 hrs 2 hrs 5 hrs 10 hrs 15 hrs 20 hrs 50 hrs 15°C 24,1 10°C...
  • Page 83 Programming Reduced setpoint increase For a relatively small required heating output, the reduced room setpoint can be start raised for cold outside temperatures. The increase is dependent upon the outside (800, 1100, 1400) temperature. The lower the outside temperature is, the higher the reduced set- Red setpoint increase end point for the room temperature is raised.
  • Page 84 Programming Floor curing function The floor curing function serves controlled drying out of screed floors (850, 1150) - Off: the function is switched off. - Functional heating (Fh): Part 1 of the temperature profile will be run through automatically. - Curing heating (Bh): Part 2 of the temperature profile will be run through auto- matically.
  • Page 85 Programming Excess heat draw If the excess temperature draw is activated via input H1 to H5 or a maximum (861, 1161, 1461) temperature is exceeded in the system, this excess heat energy can be released by a heat draw of the room heating. - Off: the function is switched off.
  • Page 86 Programming Operating level changeover Using an external timer above the entrances Hx it can be selected in which opera- (898, 1198, 1498) ting level the heating circuit is switched into. - Frost Protection: - Reduced: - Comfort: Optg mode changeover Bei externer Umschaltung der Betriebsart per Hx kann ausgewählt werden, ob bei (900, 1200, 1500) Automatikbetrieb vom Komfortsollwert auf den Frostschutzsollwert oder Redu-...
  • Page 87 Programming Fig. 20: Release according to time switching programme 4 (example) Charging priority This function ensures that the boiler capacity is primarily made available for DHW (1630) in case of simultaneous capacity demand by room heatings and DHW. - Absolute priority: Mixer and pumped heating circuits are blocked until the DHW has been heated up.
  • Page 88 Programming Legionella function circ pump - On: The circulation pump will be switched on in case of active legionella functi- (1647) Caution! There exists a hazard of scalding at the tapping locations in case of acti- vated legionella function. Circulating pump release - Time programme 3: The circulation pump is released, depending on the time (1660) programme 3 (see prog.no.
  • Page 89 Programming Setpoint source heating When using the generator heating, the swimming pool is heated to the setpoint (2056) set here. Charging priority solar Setting, of whether the swimming pool heating by solar charging has priority or (2065) not. Swimming pool temp max This parameter sets whether the swimming pool heating by solar charging has (2070) priority or not.
  • Page 90 Programming Boiler Setpoint min As a protection function the boiler temperature setpoint can be limited below by (2210) the minimum setpoint (prog.no. 2210) and above by the maximum setpoint Setpoint max (prog.no. 2212). (2212) Setpoint manual control Temperature, to which the boiler will be contolled in manual control mode (also (2214) see prog.
  • Page 91 Programming Pumpmodulation - None: the function is switched off. (2320) - Demand: Actuation of the boiler pump occurs with the speed calculated for the DHW pump during DHW mode or with the highest calculated speed for the max. 3 heating circuit pumps during pure heating mode. The calculated pump speed for heating circuit 2 and 3 is only evaluated if these heating circuits are also dependent on the setting of the diverting valve (Para- meter boiler pump/DHW diverting valve control).
  • Page 92 Programming Fan shutdown for heating This function is used for switching off the supply voltage for the fan. The supply mode voltage for the fad is released as soon as the fan PWM actuation is active or a (2445) DHW request exists. The switch off is done delayed to switch off of the PWM ac- tuation or to discontinuation of the DHW request.
  • Page 93 Programming Pressure switch shutdown With this parameter the maximum fan output for the DHW mode can be restric- (2500) ted. This function checks the static water pressure with the aid of the connected water pressure switch. Depending on the set option (start prevention or lockout position) with shutdown either a start prevention or lockout position occurs with the corresponding diagnostics.
  • Page 94 Programming Leading source The setting of the leading source is only used in combination with the fixed se- (3544) quence of the source sequence (prog. no. 3540). The boiler defined as the leading boiler is always put into operation first, and switched off last. The other boilers are switched on and off in the sequence of the device address.
  • Page 95 Programming Temp diff ON buffer storage For charging the storage tank via the heat exchanger a sufficiently large tempera- tank ture difference between the collector and storage tank is necessary. In addition (3813) the collector must have reached the minimum charging temperature. Temp diff OFF buffer storage tank Fig.
  • Page 96 Programming Tab. 6: Storage tank setpoints Level DHW storage tank Buffer storage tank 1610 Nominal setpoint Buffer setpoint (drag-pointer) 5050 DHW Charging temp max 4750 Buffer storage tank charging temp max DHW storage tank temp max (set Buffer storage temperature max by factory: 90°C) (set by factory: 90°C) Charging time relative prio...
  • Page 97 Programming Evaporation heat carrier Pump protecting function, to prevent overheating of the collector pump in case of (3860) evaporating danger of the heat carrying medium due to high collector tempera- ture. Antifreeze Information of the antifreeze used. (3880) Antifreeze concentration Input of antifreeze concentration for usage measurement of solar energy.
  • Page 98 Programming Temperature difference (4130 - 4133) Temp diff on/off A sufficiently large temperature difference is necessary between the boiler tem- (4130, 4131) perature and the comparative temperature for start-up of the pump. Comparative temp (4133) Fig. 25: Storage tank charging Temp diff on Temp diff off Boiler temp...
  • Page 99 Programming Temp diff buffer/HC If the temperature difference between buffer storage and heating circuit tempe- (4722) rature request is sufficiently large, the heat required by the heating circuit will be taken from the buffer storage. The heat generator is locked. Min st tank temp heat mode If the storage tank temperature of the buffer storage tank drops below this value, (4724)
  • Page 100 Programming Optg action return diversion The function can either be used as return temperature increase or as return tem- (4796) perature decrease. Temp decrease: If the return temperature of the consumer is higher than the tem- perature on the selected sensor (prog. no. 4795), the lower part of the storage tank can be preheated with the return.
  • Page 101 Programming Flow setpoint boost The boiler temperature setpoint for charging the DHW storage tank consists of (5020) the DHW temperature setpoint and the flow setpoint boost. Transfer boost Through the transfer, energy can be moved from the buffer storage tank into the (5021) DHW storage tank.
  • Page 102 Programming Charging temp max With this setting, the maximum charging temperature for the connected storage (5050) of the solar system will be limited. If the DHW-charging value is exceeded, the collector pump switches off. The collector pump can be re-activated by the collector overheating protecting function see prog.no.
  • Page 103 Programming With buffer storage tank - No: The domestic hot water storage tank will be directly charged from the boi- (5090) ler. - Yes: The domestic hot water storage tank will be charged from the buffer stora- ge tank. With primary control/system - No: the domestic hot water storage tank will be charged without primary con- pump troller/system pump.
  • Page 104 Programming Flow setp compensation Tv The preholding time Tv determines how long a spontaneous change of the con- (5145) trol difference continues to have an effect. A short time only influences the con- trol variable only for a short time. Full charging with B36 Here it can be set whether the end of the full charging is detected via the tempe- (5146)
  • Page 105 Programming Basicposition DHW diverting The base position of the diverting valve is the position in which the diverting val- valve ve (DV) is in if no request is active. (5734) - Last request: The diverting valve (DV) remains after the last request has ended in this last position.
  • Page 106 Programming Relay outputs QX1 - QX3 (5890 - 5892) Relay outputs QX1/QX2/QX3 - None: Relay outputs deactivated. (5890 - 5892) - Circulation pump Q4: The connected pump serves as domestic hot water circu- lation pump (see prog. no. 1660). - El imm heater DHW K6: With the connected electrical immersion heater, the DHW can be charged according to the operating side DHW storage operating li- nes electrical immersion heater.
  • Page 107 Programming - Status output K35: The status output will be operated when a command exists from the controller to the firing automation. If there is a disturbance, which pre- vents the firing automation to operate, the status output will be switched off. - Status information K36: The output is set, when the burner operates.
  • Page 108 Programming - Heat generation lock: locking of the boiler in case of closed contact at H1/H4/ H5/H2. - Error/alarm message: Closing the inputs H1/H2 gives a control unit-internal fault message, which will also be signalled via a relay output, programmed as an alarm output or in the remote management system.
  • Page 109 Programming Fig. 27: Example for two different sensor curves flow Function extension module Specification of the functions, which are controlled by the extension modules 1 2 1/2/3 and 3. (6020 - 6022) Multifunctional: For possible functions which can be assigned to the multifunctio- nal inputs/outputs, see prog.
  • Page 110 Programming Fig. 28: Example for Heat request 10 V and Refrigeration request 10 V Flow setpoint [°C] F2=130 F2=100 Voltage at Hx F1=0 U1=0 0,15 U1=10 Function value 1 Function value 2 Voltage value 1 Voltage value 2 PWM-output P1 With this parameter the function for the modulating pumps is specified.
  • Page 111 Programming Time constant building The value set here influences the reaction speed of the nominal flow value in case (6110) of fluctuating outside temperatures as a function of the building design. Beispielwerte (siehe auch Schnellabsenkung Prog.-Nr. 780, ... ): - 40 for buildings with thick walls or outer insulation. - 20 For buildings of normal building design.
  • Page 112 Programming Solar DHW/B DHW/B DHW+B DHW/B Tab. 8: Check no. storage tank (prog.-no. 6215) Buffer storage DHW storage tank No buffer No DHW storage tank Buffer storage Electric immersion heater Buffer, solar connection Solar connection Buffer, heat generation shutoff valve Charging pump Buffer, solar connection Charging pump, solar connection...
  • Page 113 Programming Tab. 9: Check no. heating circuit (prog.-no. 6217) Heating circuit 3 Heating circuit 2 Heating circuit 1 No heating circuit 00 No heating circuit 00 No heating circuit Circulation via boiler pump 01 Circulation via boiler pump 01 Circulation via boiler pump Heating circuit pump 02 Heating circuit pump 02 Heating circuit pump...
  • Page 114 Programming Manual source lock - Locally: The local heating source is locked. (6624) - Segment: All heating sources of the cascade are locked. DHW assignment This setting is only necessary if the control of the DHW charging is done by a hea- (6625) ting circuit time program (see prog.
  • Page 115 Programming Service / special operation Burner hours interval Setting of the interval for maintenance of the burner. (7040) Burn hrs since maintenance Burner hours since the last maintenance. (7041) Note: The burner hours are only counted, when the maintenance message has be- en activated.
  • Page 116 Programming PStick Des data set If a data set is selected under prog. no. 7250, under prog. no 7251 the data set (7251) name is displayed. For backup sticks the data set name is displayed in the format BUYYMMDDHHMM (BU for backup and date of backup: Year, Month, Day, Hour, Minute).
  • Page 117 Programming State State With this function the state of the selected system can be requested. (8000 - 8011) The following messages are possible under Heating circuit: End user (E) Commissioning, Technician (menu state) Monitor has tripped Monitor has tripped Manual control active Manual control active Floor curing function active Floor curing function active...
  • Page 118 Programming The following messages are possible under DHW: End user (E) Commissioning, Technician (menu state) Monitor has tripped Monitor has tripped Manual control active Manual control active Consumption Consumption Holding mode On Holding mode Active Holding mode On Recooling active Recooling via collector Recooling via heat gen Recooling via HCs...
  • Page 119 Programming The following messages are possible under boiler: End user (E) Commissioning, Technician (menu state) SLT has tripped SLT has tripped SLT test active SLT test active Fault Fault Flue gas temp too high Flue gas temp, shutdown Flue gas temp, powerlimitation Monitor has tripped Monitor has tripped Manual control active...
  • Page 120 Programming The following messages are possible under Solar: End user (E) Commissioning, Technician (menu state) Manual control active Manual control active Fault Fault Frost prot collector active Frost prot collector active Recooling active Recooling active Max st tank temp reached Max st tank temp reached Evaporation prot active Evaporation prot active...
  • Page 121 Programming The following messages are possible under solid fuel boiler: End user (E) Commissioning, Technician (menu state) Manual control active Manual control active Fault Fault Overtemp prot active Overtemp prot active Released Locked, manual Locked, automatic Min limitation active Min limitation Min limitation, part load Min limitation active Antigelo caldaia attivo...
  • Page 122 Programming The following messages are possible under Buffer storage tank: End user (E) Commissioning, Technician (menu state) Warm Warm Frost protection active Frost protection active Charg el imm heater El charg, emergency mode El charg, source protection Electric charging defrost Electric charging, forced Electric charging, substitute Charging restricted...
  • Page 123 Programming Burner control Prepurge time Pre-venting time. (9500) Note: This parameter must only be changed by a heating specialist! Nominal output prepurging Nominal output fan speed during preventing. (9504) Nominal output ignition load Nominal output fan speed during ignition. (9512) Nominal output Partial load Nominal output fan speed under boiler in LF.

  • Page 124: Maintenance

    Maintenance 9. Maintenance 9.1 Inspection and need dependent service Note: It is recommended to carry out maintenance of the Power HT annually. Should during inspection the need for maintenance work be found, these should be carried out according to need. Maintenance work includes among others: - Clean Power HT outside.

  • Page 125: Boiler View

    Maintenance 9.2 Boiler view Fig. 29: Boiler view flue gas connection boiler control lms Ignition transformer (below the control unit) ionization electrode Ignition electrodes sight glass (below the control unit) Venturi tube Silencer heat exchanger Gas valve pressure switch Servicing cover Syphon 358 436 08.10...
  • Page 126 Maintenance Fig. 30: Boiler view heating flow heating return supply air conntection gas connection 358 436 08.10...

  • Page 127: Disassembling And Installing Burner

    Maintenance 9.3 Disassembling and installing burner Danger of electric shock! Before performing service work, power to the boiler must be shut o and it must be secured from accidentally being switched back on! Disassembling burner 1. Close gas shut o device 2.
  • Page 128 Maintenance Fig. 33: Remove burner Power HT 1.230 - 1.280 - 1.320 7. Remove nuts and washers and pull out the entire burner (5) with burner seal (6) forwards Installing burner The installation of the burner is done in the opposite sequence Note: Use new seals when installing the burner.

  • Page 129: Check And Replacing Ignition Electrode

    Maintenance 9.4 Check and replacing Ignition electrode Note: To avoid an in uence of the ionisation current by the ignition, the ignition electrode must only immerse into the edge of the ame. Change ignition electrodes Danger of electric shock! Before performing service work, power to the boiler must be shut o and it must be secured from accidentally being switched back on! Fig.

  • Page 130: Check And Replacing Ionisation Electrode

    Maintenance 9.5 Check and replacing ionisation electrode The ionisation electrode must always be in contact with the ame. During burner operation, the measured ionisation ow must following data display: - At minimum power > 5 µA DC (switching threshold at 0.7 µA DC) - At maximum power >...

  • Page 131: Electrode Spacing And Installation Locations

    Maintenance 9.6 Electrode spacing and installation locations Fig. 36: Electrode spacing and installation locations 8 mm 1 Ionisation electrode 2 Ignition electrode block 9.7 Clean burner pipe 1. Removing burner (see section Installing and removing burner) Fig. 37: Dismantle burner pipe C0004611 2.

  • Page 132: Clean Heat Exchanger

    Maintenance 9.8 Clean heat exchanger 1. Remove burner (see section Installing and removing burner) Fig. 38: Remove the cover of the exhaust collection pan C0004618 2. Remove screws and remove cover (1) of the exhaust collection pan with seal (2) Fig.
  • Page 133 Maintenance Fig. 40: Siphon C0004620 5. Remove siphon (4) and clean 6. Clean siphon 7. Reinstall siphon 8. Replace the cover of the exhaust collection pan Note: Use a new seal when installing the cover. 9. Reinstall burner (see section Installing and removing burner) 358 436 08.10...

  • Page 134: Clean Fan

    Maintenance 9.9 Clean fan Dismounting the burner 1. Remove burner (see section Installing and removing burner) Fig. 41: Remove fan 2. Remove nuts with washers and release the fan (3) with seal (2) from burner co- ver (1) 3. Remove screws and release venturi pipe, incl. gas valve (5) with seal (4) from 4.

  • Page 135: Fault Switch-Off

    Maintenance 9.11 Fault switch-off Safety switch-off in case of flame failure during the operation. After every safety stop, a new ingition attempt according to programme is carried out. If this does not lead to flame forming, shutoff is carried out. In case of fault switch-off, the reset button on the control panel should be pressed.

  • Page 136: Fault Code Table

    Maintenance 9.12 Fault code table In the following an axcerpt of the fault code table. In case of further displayed fault codes, please inform the heating specialist. Fault Fault description Explanations/causes code No error Outside temp sensor fault Connection or AT-sensor, emergency operation Boiler temperature 1 Sensor fault Check connection, inform heating specialist Boiler temperature solid fuel sensor fault...
  • Page 137 Maintenance Fault Fault description Explanations/causes code Safety temperature limiter lockout No heat removal, STB/interruption, possibly short in gas valve , internal fuse defective; let device cool down and reset; if this fault occurs several times, inform heating specialist Temperature monitor switching off No heat removal;...
  • Page 138 Maintenance Fault Fault description Explanations/causes code BX/e'module same sens BX/m'grp same sens E'module same funct Mix group same funct E'mod/m'grp same funct Sensor BX1 no function Sensor BX2 no function Sensor BX3 no function Sensor BX21 no function (EM1, EM2 or EM3) Sensor BX22 no function (EM1, EM2 or EM3) Coll pump Q5 missing Coll sensor B6 missing...

  • Page 139: Maintenance Code Table

    Maintenance 9.13 Maintenance code table Maintanance codes Maintenance description Burner operating hours exceeded Burner starts exceeded Maintenance interval exceeded 9.14 Operation phases of control and regulation centre LMS After pressing the information button the operation phases will be displayed. Display Operating Status Description of function Standby (no heat demands) Burner on stand-by...
  • Page 140 Index Fault Fault code table 24-hour heating limit -Fault message „133” Fault message Air inlet Floor curing function Application example Flue lenghts Automatic day heating limit Flue system Automatic operation Frost protection plant Automatic summer/winter switch-over Frost protection setpoint Fuses Boiler view -Power HT Gas connection...
  • Page 141 Outside temperature sensor Protection Protection against contact Purging gas line Quick setback Reduced setpoint Reduced setpoint increase Regulations Replacing cables Resistance values Restore -Factory setting Room influence Room temperature -Comfort setpoint -Reduced setpoint Safety valve Servicing message Software version Spare parts Standards State Strain reliefs...
  • Page 142 Space for notes 358 436 08.10...
  • Page 143 Space for notes 358 436 08.10...
  • Page 144 Baxi S.p.A. · 36061 Bassano del Grappa (VI), Italy · Via Trozzetti, 20 Tel: +39 0424 517111 · Fax: +39 0424 38089 · www.baxi.it...

This manual is also suitable for:

Power ht 1.320Power ht 1.230

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