manual Installation and operating instructions Condensing boilers Weishaupt Thermo Condens WTC 45-A / WTC 60-A 83240702 - 1/2008
Conformity Certification to ISO/IEC Guide 22 Manufacturer: Max Weishaupt GmbH Address: Max Weishaupt Straße D-88475 Schwendi Product: Type: Gas Condensing Boiler WTC 45-A, WTC 60-A The products described above conform to Document No.
1 1 General instructions 5 2 2 Safety instructions 6 3 3 Technical description 3.1 Permissible application 3.2 Function 3.2.1 General notes 3.2.2 Important components 3.3 Basic construction and variations 3.3.1 Components 3.3.2 Version - H-0 3.3.3 Version - H 3.4 Prerequisites 3.5 Demands on the heating water 3.5.1 Permissible water hardness 3.5.2 Fill water quantity 3.5.3 Treatment of fill and top up water 8 8 8 8 8 10 10 11 11 12 13 13 14 14 4 4 Installation 4.1 Safety notes on installation 4.
7 7 Control variations Weishaupt Condens Manager (WCM) 7.1 Constant flow temperature control 7.2 External temperature dependent flow temp. control 7.3 DHW load function 7.4 Special functions 7.4.1 Standard control of PWM pump 7.4.2 Control of PWM pump 7.4.3 Pump control logic in heating operation 7.4.4 Freely selectable input and outputs 7.4.5 Regulation with one calorifier sensor 7.4.6 Regulation with two calorifier sensors 7.4.
1 1 General instructions Your information package This is user information included with the unit. You can find answers to your questions in the following brochures: Info for the user: ❑ Operating instructions for the operator WTC 45-A/60-A (These instructions can be stored in the pocket in the lower unit cover.
2 Safety 2 instructions Dangers when using the equipment Weishaupt products are manufactured in accordance with the relevant existing standards and guidelines and the recognised safety laws. However, improper use of the equipment could endanger life of the user or a third party, or result in damage to the plant.
2 General information for gas operation • When installing a gas combustion system, regulations and guidelines must be observed (i.e. Local Codes of Practice and Regulations). • The subcontractor responsible for the installation or changes to the gas system must inform the gas supplier of the type and extent of the installation planned and the intended work. The subcontractor must ascertain that an adequate gas supply to the installation is ensured.
3 3Technical description 3.1 Permissible application The Weishaupt Thermo Condens WTC 45-A/60-A is a condensing wall mounted heating appliance for sliding setback operation without lower temperature limit with a a minimum flow of 400l/h through the heat exchanger. • • • • • For wall mounting in enclosed rooms (installation outdoors is not permitted) For heating DHW heating circuits in sealed systems to DIN EN 12828.
3 Diagram resulting supply pressure WTC 45-A/60-A with PWM pump 700 Minimum flow quantity WTC 45-A/60-A 600 Pressure [mbar] Version - H with PWM-pump The condensing boiler is fitted with a modulating heating circuit pump as standard. The maximum modulation range of the pump in its factory presetting is 20 - 100%. The modulation range can be adjusted in the heating engineer level using parameter P42 and P43. This pump matches the unit throughput to the rating and reduces electrical consumption.
3 3.3 Basic construction and variations 3.3.
3 3.3.2 Version - H-0 Version H-0 is a heating unit without integrated pump. The heating pump is fitted on site. When installing the pump on site it should be ensured that a minimum installation pressure of 1 bar is maintained if the pump is fitted in the flow. The pressure loss diagram from Ch. 3.2.2 should be used when sizing the pump. Weishaupt recommend the pump is installed in the return of the heating system of the unit.
3 3.4 Prerequisites Included in delivery The ready-to-use unit is delivered in a cardboard box. The following parts are enclosed loose: • • • • • End user documents Wall bracket Screw set with wall plugs Spacer Siphon with hose for condensate drainage Application instructions When transporting and storing the unit, the following should be avoided: • mechanical impact, such as: distortion, warping, scratching • Contamination of any kind, e.g.
3 3.5 Demands on the heating water Note: • • • • • In accordance with VDI-Guideline 2035 the following demands must be met by the heating water. The untreated fill and top up water must be of domestic water quality (colourless, clear, without scaling), the fill and top up water must be pre-filtered (mesh width max. 25 µm), the pH value must be 8.5 ± 0.5, avoid oxygenation of the heating water (max. 0.
3 3.5.2 Fill water quantity If information about the fill water quantity is not available, the following table can be used to estimate the quantity. On calorifier systems the calorifier content must be taken into consideration.
4 4 Installation 4.1 Safety notes on installation Electrically isolate the system Prior to installation switch off the unit and safety switch, as well as the mains switch. Failure to comply could cause death or serious injury by electric shock. DANGER Only valid for Switzerland: When installing and operating a -weishaupt- gas burner in Switzerland the regulations of SVGW and VKF as well as local and cantonal regulations must be observed.
4 4 4.3 Wall mounting Fit wall bracket Fit wall bracket ☞ Fit wall bracket 1 enclosed to the wall with the fixing screws supplied. ❏ The suitability of the wall plugs enclosed should be checked depending on the construction of the wall. 80 3° ❏ A gradient of 3° towards the unit should be provided for the flue gas ducting (at 1metre this is equal to approx. 5.5 cm). 1711) 320 ❏ There should be sufficient space available below the unit for the hydraulic connection assembly.
4 Fit and align unit ☞ Fit spacers provided to the left and right of the rear of the unit, as low as possible. Fit and align unit 1 2 ☞ Place unit into the wall bracket 1. Check safe overlap in the wall bracket. ☞ Once fitted, horizontally align the unit with the 2 setting screws 2. ☞ Fit flue gas connection (accessory). ☞ It is recommended to remove the cover of the WTC before continuing with the installation.
4 4.4 Mains water connection 40 Hydraulic connection 50 Application in sealed heating systems ☞ Connect flow and return (pipes should be rinsed thoroughly before connecting). ☞ Install boiler, inlet and outlet valves (available as an accessory). ☞ Install safety valve (available as accessories). ☞ Fit expansion tank. ☞ Fit sludge trap in return pipe (if required).
4 4.6 Electrical connection Electrical installation by qualified personnel only! Local regulations and codes of practice, as well as regulations from the energy supplier must be observed. Plug cover DANGER Mains and emergency switch The external mains switch for the heating system must have at least 3 mm contact distance. ☞ Connection to plug assignment, Ch. 4.6.1. Electrical connection The gas condensing boiler WTC is wired ready for connection.
4 4.6.1 External connection WCM Wiring diagram WCM Mains switch S3 WCM - CPU F1 230V 4,0 AT eBus Modul CPU 1 2 3 4 5 6 7 8 9 10 230V . L N PE 230V . L N PE H1 L E H2 L E MFA L N PE VA 1 2 eBus + - B11 1 M B1/N1 1 M B3 1 M Main switch F10 Calorifier cable loom (optional) Max.
4 4.6.2 Connecting a 3 way change-over valve For DHW operation, the 3 way change-over valve is connected to the 230V output and either the MFA or VA. To enable the 3 way change-over valve to function, the MFA or VA must be configured accordingly. To do this, parameter P13 or P14 (see Ch. 6.3.3) should be set to parameter value 4. Connect 3 way change-over valve Control via MFA WCM - CPU WCM - CPU 1 2 3 4 5 6 7 8 9 10 230V . L N PE 230V .
4 4.6.4 Remote load control The control cable (4…20 mA) is connected to input B1/N1 (plug 9) independent of polarity. The WCM automatically recognises the signal and displays configuration _t _ when it is switched on. The available signal is interpreted as supply setpoint, which is incorporated into the setpoint formation parallel to other heat demands from the heating circuits, whereby 4 mA is equal to the minimum supply setpoint set in parameter P30.
4 4. Plug in circuit board plug (Rast 2.5) at plug slot ST20. Connecting calorifier cable loom 5. Fit new flow sensor line to the unit and plug into sensor. 6. Install the cable for the calorifier sensor down towards the cable entry and pass it through the diaphragm grommet. 7. Connect wire ends to plug part B10 and secure with tension relief (cable ties). 8. Connect calorifier sensor to socket B10 and plug in. 9.
4 4.7 Gas side connection Gas installation by qualified personnel only! Local regulations and codes of practice, as well as regulations from the local gas board must be observed. Venting the gas supply line The local gas board or their appointed sub-contractor are responsible for venting the gas line.
4 4.8 Condensate - installing siphon Fill siphon supplied with water and install to WTC as shown. Installing and filling siphon Condensate discharge into the waste water system The condensate of the WTC complies with the requirements as stipulated in the ATV data sheet A 251for condensate discharge into the waste water system of the property. Neutralisation is usually not required. If necessary, the water board should be informed about the discharge.
4 4.9 Flue gas connection Flue gas lines approved by planning law The WTC is equipped with a concentric flue gas connection Ø 125/80 located at the top of the unit.
5 5 Commissioning and operation 5.1 Operating controls Four operating controls are located below the front flap. Operating elements Dial knob This is used to change values and settings by rotation. Clockwise turn: • Values are increased • Markings are moved to the right or down Rotation to the left: • Values are reduced • Markings are moved to the left or up Enter button This is used to select menus and to confirm entries Reset button Pressing this button resets lockouts.
5 5.3 Soundness test with air During the soundness test, the gas ball valve and gas combi valve must be closed. A soundness test must be carried out at every service. The result of the soundness test must be certified on the engineers report. ☞ Open closing screw on test point Pe by approx. 1 rotation. ☞ Connect pressure measuring device to Pe. ☞ Connect aspirator with T piece. Create test pressure: ☞ The test pressure should be 100 mbar. ☞ Pressure loss within 5 minutes max. 1 mbar.
5 5.4 Function test without gas 5.4.1 Automatic configuration ☞ The gas ball valve must be closed. ☞ All electric wiring should have been tested. ☞ There must be water pressure available in the heating system (> 1bar). ☞ Apply voltage supply and switch on unit. The Weishaupt Condens Manager (WCM) automatically recognises the type of unit connected and carries out the necessary parameter settings.
5 5.4.2 Continued program sequence The continued sequence can be found in the sequence diagram on the right. Sequence diagram Flame stabilisation period Safety period Flame signal Ignition V1 / V2 Post purge speed Ignition speed Modulating operation Heat demand The unit carries out 5 ignition attempts. After the fifth unsuccessful attempt the display shows the code F21. Initiate a restart by pressing the reset button. Display 5.
5 Fine tuning the O2 value Fine tuning the O2 value is included in an automatic function sequence with 3 steps. This sequence allows the combustion to be optimised on site using parameters P39 and P72. Procedure 1. Select parameter 39 in the heating engineer level and call up the entry mode by pressing the key, the unit carries out a calibration (duration approx. 60 sec). This calibration creates a new SCOT® base value. 60 sec. 2.
5 Soundness test of flue gas system For room air independent operation, a soundness test of the flue gas system via an O2 measurement within the internal space of the condensing boiler is required. Soundness test of flue gas system 1 2 4 ☞ Fit hose 4 through the test point in the supply air aperture 2 into the condensing boiler. ☞ Seal test point in the supply air aperture 2. ☞ Connect test sensor 5 to the hose 4. ☞ Close cover of condensing boiler.
5 5.5.2 Variable ratings setting Move the selection cursor below the “Chimney sweep” symbol by turning the dial knob. Change over to chimney sweep mode by pressing the key. The 3 large numbers show the current rating and the 2 smaller number show the current boiler temperature. By pressing the key again the setting level, in which the variable heat rating can be changed from maximum heat rating to minimum heat rating, is activated.
5 5.6 Ratings measurement The burner rating for nominal load has to be determined. Proceed as follows: • • • • Legend: · Q Br = Burner rating in kW PBaro.
6 6 Operating instructions 6.1 Operating levels The operation is divided into two operating levels. Level 1 is the end user level, and can be accessed directly. If an FS (remote control station) is fitted, only the chimney sweep function can be called up in level 1. Operating elements Level 2, The heating engineer level is protected by a CODE. Note: On systems with additional (FS/EM) the functions of the menu are not active and are therefore faded out. 6.2 End user level 6.2.
6 6.2.2 Setting mode Setting of setpoints and display of other system values. Procedure: • The symbol line is displayed by turning the dial knob. • By turning the dial knob again, the selection cursor can be placed under the relevant symbol. If the selection cursor is moved beyond the left or right positions, the display mode is shown. The display mode also appears, if the enter key has not been used for 20 seconds.
6 6.3 Heating engineer level 6.3.1 Entry into the level • Turn dial knob until selection cursor under “Spanner” symbol. • Press enter key. • Set Service CODE (11). ☞ If an incorrect code is entered, the entry level is exited! • Press enter key. Note: The heating engineer level symbol line is displayed. i P = Info mode = Parameter mode = Error memory By turning the dial knob, the selection cursor can be placed under a symbol. The selection is activated by pressing the enter key.
6 6.3.2 Info mode Here, specific system values can be displayed. By turning the dial knob, the individual operating status values can be interrogated. Each value can be assigned to the next list via a row number. Code Limited display Process value Unit System I10 Operating phase (see also ➩table operating phases Ch. 6.3.
6 Table of operating phases Display Phase description 1 1 Standby control fan 2 2 prepurge speed achieved Tv...0 3 Countdown of prepurge in secs. 4 4 Ignition speed achieved 0...Tz 5 Flame formation time in 0.1 x secs. 6 6 Burner in operation, control active 7 7 Gas valve control V1 8 8 Gas valve control V2 9 9 Post-purge speed achieved and post-purge 0 0 Burner off Note: Exiting the Info level: Turn dial knob until ESC is displayed and confirm with key. 6.3.
6 Des. Limited display Parameter value Basic configuration 3 digit P10 Code P11 P12 E / F / EA 1, A…E Factory presetting Unit HAP xyz 0 ... 7 P14 Delete configuration (➩ Ch. 6.3.3) 3. Character:P= PWM pump Nat. Gas / LPG / Nat. Gas-flue gas damper EA f. operation w. flue gas shut off dev.
6 Des. Limited display Parameter value Heat exchanger P30 8 ... Factory presetting Unit 8 °C Minimum flow temperature setpoint 78 °C Maximum flow temperature setpoint Explanation Special features (P31- P32) P31 (P30 + P32) P32 P33 P34 (±) 1 ... 7 (±) 3 K Flow temperature switch differential 80 ... 120 120 °C STB switch off temperature flue gas duct 1 ... 15 5 min Burner rapid cycle interlock, 5 ... 31 16 % Start gas quantity at ignition 12 with WTC 45 26(27)...
6 Notes for special parameters P10 - WTC configuration This parameter is used to reset the configuration manually. This is important, if the system is extended at a later stage, e.g. if an external sensor is fitted. Procedure: • Call up entry mode by pressing key. • Turn dial knob until --- is displayed. To cancel, select ESC with dial knob and confirm with key. • To start a new configuration press key. After approx. 10 seconds, the new configuration is displayed flashing.
6 6.3.4 Error memory Here, the last 6 error messages can be called up in the form of an error code (see Ch. 9) of the WTC using the dial knob. Error message 1…6 Error code By pressing the enter key again, the system conditions (➩ Overview) which existed when the error occurred can be called up using the dial knob. During this display the flame symbol is flashing. Overview system conditions Des. Process valueLimited Unit display Burner, system 10 Operating phase (➩ Ch. 6.3.
6 6.4 Service functions via PC interface The Weishaupt Condens Manager (WCM) is equipped with an interface for PC connection. Data transfer is carried out via Weishaupt eBUS adapter (W-EA) from eBUS via RS 232 interface to PC. The W-EA, as well as the Service Software WCM Diagnostic are available as accessories. Service software WCM diagnostic 1 5 06 11:2 v0 ov 3.No Fr 03.N 2 12 The software makes the following functions available: • Display of operating conditions of burner, fan, pump and gas valve.
7 7 Control variations Weishaupt Condens Manager (WCM) The WCM not only carries out the regulating and control functions for the boiler, but also the control of the heating systems and domestic hot water operation. The heating controller contains basic functions which have an effect in all the following variations: • • • The boiler flow temperature is limited upwards by the max. flow temperature ( ➩ P31) and downwards by the min. flow temperature ( ➩ P30).
7 7.2 External temperature dependent flow temperature control An external sensor QAC 31is required for this variation. The sensor should be fitted to a north or northwest facing wall. Installation example Avoid the following unfavourable factors: • Direct exposure to the sun. • Installation below a balcony, eaves or similar • Extraneous heat sources (chimney, through windows, through ventilation openings). • Do not paint sensor housing.
7 7.3 DHW function The WTC can control an external DHW circuit. To do this, the DHW sensor B3 must be connected. The WCM-CPU recognises this modification and indicates the configuration in parameter P10 with a W. A change-over valve or a separate DHW pump can be driven via outputs VA and MFA (electrical connection see Ch. 4.6.2 and Ch. 4.6.3). The speed of the internal boiler pump for DHW operation can be defined with parameter P45. The domestic hot water operation has priority over the heating operation.
7 7.4 Special functions 7.4.1 Standard regulation of the PWM pump The PWM pump has variable speed and is controlled by the Weishaupt Condens Manager. The pump rating of the boiler circuit is assigned to the required burner rating. The modulating limits for the pump can be adjusted (➩ P42, P43 heating engineer level). The pump is operated at minimum rating when the burner is switched off. During the first minute in heating operation the pump is operated at the rating defined in P43.
7 7.4.4 Freely selectable inputs and outputs Using the two freely selectable outputs MFA (plug 5) and VA (plug 6) a multitude of applications can be realised. The MFA is a potential linked relay output with a connection rating of 150 W. The VA output is potential free. Both outputs can be parameterised for the same functions. to do this use P13 (for output MFA) and P14 (for output VA).
7 7.4.5 Regulation with one calorifier sensor For this type of regulation a calorifier sensor (NTC 5kΩ, Order No.: 660 228) has to be connected to sensor input B10 (➩ Ch. 4.6.5). Input B11 is not connected. This type of operation makes sense, if only the top part of the calorifier is to be loaded by the WTC. The loading of the lower part of the calorifier area is carried out via external heat source.
7 Freely selectable inputs and outputs for calorifier control P1/P2 Using the two freely selectable outputs MFA (plug 5) and VA (plug 6) a multitude of applications can be realised. The MFA is a potential linked relay output with a connection rating of 150 W. The VA output is potential free. Both outputs can be parameterised for the same functions. to do this use P13 (for output MFA) and P14 (for output VA).
7 7.4.7 Regulation with hydraulic de-couple For this type of regulation, the de-couple sensor (NTC 5kΩ, Order No.: 660 228) has to be connected to input B11. Prerequisites: • Unit version with integrated PWM pump • De-couple sensor (B11) installed Heating operation: The WTC controls the modulation in the heating operation directly with the de-couple sensor.
7 Freely selectable inputs and outputs for de-couple regulation P3 Using the two freely selectable outputs MFA (plug 5) and VA (plug 6) a multitude of applications can be realised. The MFA is a potential linked relay output with a connection rating of 150 W. The VA output is potential free. Both outputs can be parameterised for the same functions. to do this use P13 (for output MFA) and P14 (for output VA).
8 Safety 8 and monitoring function 8.1 Temperature monitoring Boiler circuit The following functions are combined in the safety temperature sensor of the boiler circuit: • Safety temperature limiter • Safety temperature monitor Temperature aquisition for control and display is carried out via the flow temperature sensor.
8 8.2 Sensor monitoring Display of sensor faults 8.3 Heating frost protection function Boiler frost protection (without external sensor QAC 31) Tv < 8°C ➩ Burner on with minimum load • Pump on Tv > 8°C + switch differential flow temperature (➩ P32) ➩ Burner off • Pump run on (➩ P41) ☞ Frost protection also effective on output MFA, if parametered as flow pump (➩ P13). System frost protection (with external sensor QAC 31) TA act. < Tsystem frost protection (➩ P23) ➩ Pump starts every 5 hrs.
9 Cause 9 and rectification of faults Most irregularities and faults of the boiler are recognised by the WCM and shown on the display. The display differentiates between faults (boiler lockout) and warnings. Faults (crossed out flame signal flashes) Proceed as follows with faults: • Note down the fault displayed (flashing) • Press reset key Warning With warnings the boiler does not lock out. The warning is shown in the display and expires by itself once the cause of the warning no longer exists.
9 Continuation of fault and warning message CODE Message Cause Possible fault/rectification No flame formation at burner start • Contaminated combustion air (dust, soot) ➩ Clean burner • Gas supply closed • Ignition electrode soiled/incorrect spark gap • Faulty wiring to ignition electrod • Increase flame formation time > 1.4 sec.
9 Continuation of fault and warning message CODE Message Cause Rectification Safety temperature sensor defective • Check cable + sensor Flue gas sensor defective • Check cable + sensor Sensor 30 Warning 31 Fault 33 Warning5) External sensor B1 defective • Check cable + sensor 34 Warning DHW sensor B3 defective • Check cable + sensor 35 Fault Flow sensor defective defekt • Check cable + sensor 36 Warning Insufficient water pressure • Check system pressure Pressure must be more than
9 Continuation of fault and warning message CODE Message Cause Possible fault/rectification Electronic compound regulation 61 Fault Deviation of ionisation signal to setpoint too large • Wrong setting of gas type at gas valve, check setting • Parameter P11 set to wrong gas type • Check resistance ionisation circuit R > 50 kΩ ➩ replace cable • Ionisation electrode soild or mechanically deformed • WCM-CPU faulty - replace 62 Fault The setting signal of the gas setting element exceeds the permissible
9 Continuation of fault and warning message CODE Message Cause Possible fault/rectification WCM cascade manager no longer transmits valid setpoint • Check Bus connection/Bus supply • Check WCM-KA eBus communication 80 Warning P12 is set to address #A…E • Check address setting P12 and no setpoint transmitter connected e.g.
10 A 10 Service A 10.1 Safety notes on servicing Service only by qualified personnel! Failure to carry out maintenance and service work properly can have severe consequences including serious injury or the loss of life. Pay close attention to the following safety notes. ATTENTION DANGER Danger of getting burned! Some parts of the appliance (e.g. burner surface) become hot during operation and could cause burns if touched. The appliance should be allowed to cool prior to service work being carried out.
10 A 10.2 Check list for servicing the WTC Service task Carried out on 18.07.08 Read out burner operating hours (➩ Ch. 6.3.2; I43) Read out fault memory (➩ Ch. 6.3.4) I43 = 1500 Fault 2x F22 1x F42 Safety and function check including the safety and control components ✔ Check function and safety of air/flue gas system. Check soundness of flue gas system. (➩ Ch. 5.5) ✔ Check soundness of fuel and water carrying system components, carry out visual inspection for corrosion and wear and tear.
10 Continuation checklist for service Service task Carried out on Read out burner operating hours (➩ Ch. 6.3.2; I43) I43 = Read out fault memory (➩ Ch. 6.3.4) Fault Safety and function check including the safety and control components Check function and safety of air/flue gas system. Check soundness of flue gas system. (➩ Ch. 5.5) Check soundness of fuel and water carrying system components, carry out visual inspection for corrosion and wear and tear.
10 A 10.3 Cleaning the burner and heat exchanger Service interval and service tasks The burner surface should be checked for soiling and if necessary cleaned annually. The heat exchanger should be checked for flue gas side soiling and if necessary cleaned annually. A Weishaupt cleaning kit for this task is available, order No.: 480 000 00 26 2. The check of the degree of soiling is carried out by a differential pressure measurement. The accessory required is included in the cleaning kit.
10 Re-assembling following cleaning: 1. Refit cover of cleaning opening on siphone and fill siphon with water (see Ch. 4.8). 2. Fit service cover with new seal and tighten the screws to 4 Nm torque. 3. Install pre-mix burner, ensuring correct alignment on the adjusting struts. 4. Check burner seal for damage prior to fitting the burner cover. Fit burner cover to the stay bolts and tighten the nuts to 4 Nm torque. 5. Connect the gas valve to the gas pipe and tighten the union nut. Fit new gas seal (Order No.
10 1 A0.4 Chimney sweep function • Activate symbol rail by turning dial knob and place cursor below the chimney sweep symbol. • Activate chimney sweep function by pressing the key. • • • The function remains active for 15 minutes. The 3 digit display shows the current boiler rate. The 2 digit display shows the current boiler temperature. ☞ To exit the chimney sweep function, turn dial knob until ESC appears, then press the key. After approx. 90 seconds the standard display appears. 90 sec.
11 Technical A 1 data A 11.1 Rating, efficiency, emissions Weishaupt Gas Condensing Unit Category Type of installation CE -No. SVGW-Reg.-No. ÖVGW Quality Mark (DE): II2ELL3B/P, (AT): II3H3P, (CH): II2H3P B23/B23P*/B33/C13x/C33x/C43x/C53x/C63x/C83x 0085 BO 6112 04-023-4 G2.596 WTC 45-A WTC 60-A Min. load Nominal load Min. load Nominal load Burner rating (QC) to EN 483 Fan speed Natural Gas/LPG max.
11 A 11.2 Electrical data Weishaupt Gas Condensing Unit Nominal voltage Nominal load version -H / H-O Max. prefusing Unit fuse F 230 V Unit fuse F2 24 V DC Type of protection Ignition frequency Spark gap W A A A Hz mm WTC 45-A WTC 60-A 230 VAC, 1N, 50Hz 151 / 62 G 16 4 AT 4 AT IP 44 50 3.5 230 VAC, 1N, 50 Hz 170 / 85 G 16 4 AT 4 AT IP 44 50 3.5 WTC 45-A WTC 60-A 3...30 -10...60 max. 80 % 3...30 -10...60 max. 80 % WTC 45-A WTC 60-A 73 DN 80 4.5 - 19.9 57 – 74 31 – 53 106 DN 80 5.9 – 26.
11 A 11.5 Weights, dimensions Weishaupt Gas Condensing unit Weight incl. cladding WTC 45-A WTC 60-A 61 65 kg 320 640 157 320 80 ca.
A Appendix Conversion to Liquid Petroleum Gas Gas nozzle replacement not required ! Gas type conversion The following sequences hould be observed during the conversion: 1. Switch boiler on/off switch to 0. 2. Unscrew plug for voltage supply to gas valve. 3. Turn setting screw (socket head 2.5 mm) on gas valve to right stop. This requires approx. 30 rotations. Natural Gas : left stop Liquid Petroleum Gas : right stop 4. Retighten plug for voltage supply to gas valve. 5. Switch on boiler. 6.
A D Wobbe table Calorific values and CO2 max. (guide values) of different types of gas Gas type Calorific value Hi MJ/m3 kWh/m3 CO2 max. % 2. Gas family Group LL (Natural Gas) Group E (Natural Gas) 28.48…36.40 33.91…42.70 7.91…10.11 9.42…11.86 11.5…11.7 11.8…12.5 3. Gas family Propane P Butane B 93.21 123.81 25.99 34.30 13.8 14.1 Contact the gas supplier for the various maximum CO2 contents.
A Sensor variables Boiler (4 core), flue gas (4 core), DHW sensor version -C (2 core) and calorifier sensor B10/B11 = NTC 5 kΩ ϑ[°C] R[Ω] ϑ[°C] R[Ω] ϑ[°C] R[Ω] ϑ[°C] R[Ω] ϑ[°C] R[Ω] -20 48380 10 9948 40 2662 70 874 100 337 -15 36382 15 7856 45 2183 75 738 105 291 -10 27609 20 6246 50 1799 80 626 110 253 -5 21134 25 5000 55 1491 85 533 0 16312 30 4028 60 1241 90 456 5 12691 35 3265 65 1039 95 391 External sensor QAC 31(B1) = NTC 600 Ω Tank sen
A Internal boiler wiring Internal boiler terminal rail Heating circuit pump 2 ST20 Flow temperature sensor Calorifier sensor 1 ST17 Control gas setting element ST18 Fan 24 V DC Water pressure switch Temperature switch heat exchanger Safety temp. sensor Flue gas sensor Entre key Dial knob SCOT electrode Fan 230V 3 0 Reset key F1 (230V/4AT) On/Off switch PE Burner PE Housing 230V 1 PC eBUS 230V 2 H1 3 H2 4 MFA 5 F2 (24V/4AT) Ext.
A Customer service Heating systems consist of a number components, which have been installed and tested by experts. This checklist aids fault limitation: Information at the heating installation: • • ❑ Poss.
A 75
A Spare L parts 1.30 1.28 1.23 1.29 1.31 1.27 1.17 1.10 1.06 1.07 1.26 1.08 1.09 1.10 1.11 1.18 1.14 1.21 1.02 1.13 1.10 1.15 1.22 1.05 1.06 1.16 1.20 1.24 1.25 1.04 1.19 1.23 1.03 1.12 1.02 1.
A Pos. Description Order No 1.01 Cover WTC 45/60-A kompl. 481 401 02 04 2 1.02 Bearing screw WTC 15/25-A 481 011 22 24 7 1.03 Flap boiler control panel cpl. WTC 15-60-A 481 011 22 36 2 1.04 Cover LCD WTC-A 481 011 22 03 7 1.05 Flap operating panel cpl. WTC 15-60-A 481 011 22 38 2 1.06 Screw 409 353 1.07 Button WCM-CPU with seal. ring WTC-A 481 011 22 18 2 1.08 Operating button WCM-CPU WTC-A 481 011 22 20 2 1.09 Reset key WCM-CPU WTC-A with seal. ring 481 011 22 19 2 1.
A 2.23 2.22 2.21 2.20 2.19 2.18 2.15 2.14 2.13 2.12 2.08 2.06 2.07 2.05 2.04 2.03 2.02 2.07 2.11 2.10 2.09 2.01 78 2.16 2.
A Pos. Description Order No 2.01 Screw M4 x 25 Combi-Torx-Plus 409 258 2.02 Screw M4 x 12 Combi-Torx 20 409 257 2.03 Gas connection piece WTC 15/25-A 481 011 30 19 7 2.04 O ring 23 X 2,5 445 136 2.05 Compact gas combi valve WTC 45-A WTC 60-A 605 569 605 570 2.06 Gasket gas valve mixer WTC 45/60-A 481 401 30 30 7 2.07 Screw M 5 X 12 DIN 912 8.8 402 207 2.08 Fixing plate intake damper 481 401 30 24 7 2.09 Screw M 4 X 10 DIN 912 8.8 402 150 2.
A 3.19 3.07 3.20 3.25 3.21 3.04 3.01 3.22 3.15 3.14 3.23 3.16 3.66 3.13 3.18 3.17 3.12 3.11 3.17 3.26 3.27 3.16 3.09 3.10 3.35 3.01 3.62 3.61 3.28 3.29 3.34 3.30 3.28 3.33 * 3.06 3.05 3.60 3.05 3.31 3.07 3.59 3.32 3.04 3.03 3.02 3.01 3.08 3.19 3.58 3.57 3.56 3.55 3.51 3.54 3.53 3.52 3.36 3.19 3.37 3.19 3.40 3.39 3.50 * 3.20 3.21 3.04 3.19 3.49 3.22 3.38 3.23 3.24 3.42 3.16 3.48 3.47 3.46 3.18 3.17 3.41 3.17 3.45 3.44 3.16 3.42 3.43 3.36 3.35 3.40 3.61 3.
A Pos. Description Order No Pos. Description Order No 3.01 Washer nut M 6 A2G ISO 4042 412 508 3.42 Gasket siphon union nut G1 1/4 481 011 40 21 7 3.02 Service cover WTC 45/60-A 481 401 30 02 7 3.43 Cover siphon WTC 15/25-A 481 011 40 18 7 3.03 Gasket service cover WTC 45/60-A 481 401 30 05 7 3.44 Condensate hose 25 X 3 X 1000 long 481 011 40 23 7 3.04 Stud 6 X 30 DIN 949-B MFS 471 230 3.45 Union nut G1 siphon 481 011 40 17 7 3.05 Screw M 6 X 10 DIN 912 8.8 402 366 3.
A 4.01 4.02 4.05 4.06 4.08 4.03 4.07 4.04 4.22 4.09 4.21 4.20 4.19 4.18 4.17 4.16 4.15 4.14 4.13 4.10 4.11 82 4.12 4.
A Pos. Description Order No 4.01 Grommet timer digital 481 011 22 17 7 4.02 Pressure gauge 0-4 bar 481 011 22 27 7 4.03 Transformer for WCM WTC-A 481 011 22 12 7 4.04 Screw 4 X 14-WN1412-K40 A2K 409 352 4.05 Cable loom flo sensor- flow control 481 401 22 07 2 4.06 Cable loom ST18 481 401 22 16 2 4.07 WCM-CPU, repl. circ. baord w. packaging 481 401 22 15 2 4.08 Coded plug BCC WTC 45-A vers. H/H-O WTC 60-A vers. H/H-O 481 401 22 11 2 481 601 22 11 2 4.09 Switch wire GNGE 1.
A 5.10 5.11 5.07 5.01 5.09 5.12 5.08 5.14 5.02 5.03 5.09 5.09 5.04 5.05 5.04 84 5.06 5.
A Pos. Description Order No 5.01 Gasket 25 x 38 x 2 (11/4) 481 401 40 05 7 5.02 Conn. pipe flow with sensor conn. WTC 45-A WTC 60-A 481 401 40 02 2 481 601 40 02 2 5.03 NTC sensor G1/8 481 113 40 10 7 5.04 Screw M 5 X 8 DIN 912 402 223 5.05 Gas pipe fixing plate 481 401 02 13 7 5.06 Gas pipe with union nut G3/4 WTC 45-A WTC 60-A 481 401 30 41 2 481 601 30 41 2 5.07 Gasket 17 X 24 X 2 441 076 5.08 Fixing bracket RL WTC 45/60-A vers. H 481 401 40 07 7 5.
A 6.01 6.07 6.03 6.06 6.02 6.05 6.04 86 6.01 6.
A Pos. Description Order No 6.01 Gasket 25 x 38 x 2 (11/4) 481 401 40 05 7 6.02 Conn. pipe flow with sensor connection WTC 45-A WTC 60-A 481 401 40 02 2 481 601 40 02 2 6.03 NTC sensor G1/8 481 113 40 10 7 6.04 Screw M 5 X 8 DIN 912 402 223 6.05 Gas pipe fixing plate 481 401 02 13 7 6.06 Gas pipe with union nut G3/4 WTC 45-A G3/4 WTC 60-A 481 401 30 41 2 481 601 30 41 2 6.07 Gasket 17 X 24 X 2 6.08 Connection pipe return WTC 45-A vers. H-O WTC 60-A vers. H-O DIN 2690 Pos.
A 88
A 89
Max Weishaupt GmbH D - 88475 Schwendi Tel.: (07353) 830, Fax.: (07353) 83358 www.weishaupt.de Print No. 83240702, October 2008 Printed in Germany. All rights reserved. Product Description Performance W-Burners The compact series, proven millions of times over: Economical, reliable, fully automatic. Gas, oil and dual fuel burners for domestic and commercial applications. The purflam burner gives almost soot-free combustion of oil with greatly reduced NOx emissions.
