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Summary of Contents for Weishaupt WTC-GB 120-A
- Page 1 Installation and operating instruction Gas condensing boiler WTC-GB 120 … 300-A 83251702 • 1/2011-02...
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Page 2: Conformity Certification
Max Weishaupt GmbH Manufacturer: Max-Weishaupt-Straße Address: D-88475 Schwendi Product: Gas condensing boiler WTC-GB 90-A, WTC-GB 120-A, WTC-GB 170-A, WTC-GB 210-A, WTC-GB 250-A, WTC-GB 300-A The product described above conforms with the regulations of directives: 2009 / 142 / EC 2006 / 95 / EC... -
Page 3: Table Of Contents
Installation and operating instruction Gas condensing boiler WTC-GB 120 … 300-A User instructions ........................6 User guide ......................6 1.1.1 Symbols ......................... 6 1.1.2 Target group ......................6 Guarantee and Liability ..................7 Safety ............................8 Permissible application ..................8 When gas can be smelled ................. - Page 4 Installation and operating instruction Gas condensing boiler WTC-GB 120 … 300-A Installation ..........................24 Requirements for the heating water ............. 24 5.1.1 Permissible water hardness ................24 5.1.2 Fill water quantity ....................25 5.1.3 Treatment of fill and top-up water ..............26 Hydraulic connection ..................
- Page 5 Installation and operating instruction Gas condensing boiler WTC-GB 120 … 300-A Replacing electrodes ..................67 Removing and refitting burner tube .............. 68 Cleaning the heat exchanger ................. 71 Check flue gas pressure switch ..............72 10 Troubleshooting ........................73 10.1 Procedures for fault conditions ..............
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Page 6: User Instructions
Installation and operating instruction Gas condensing boiler WTC-GB 120 … 300-A 1 User instructions 1 User instructions These installation and operating instructions form part of the unit and must be kept Translation of original on site. operating instructions 1.1 User guide 1.1.1 Symbols Immediate danger with high risk. -
Page 7: Guarantee And Liability
▪ the installation of combustion chamber inserts, which impede full flame formation, ▪ repairs, which have been carried out incorrectly, ▪ the use of non original Weishaupt parts, ▪ unsuitable fuels, ▪ defects in the inlet lines, ▪... -
Page 8: Safety
Installation and operating instruction Gas condensing boiler WTC-GB 120 … 300-A 2 Safety 2 Safety 2.1 Permissible application The boiler is suitable for: ▪ Warm water heating circuits in closed systems according to DIN EN 12828 ▪ A flow rate of maximum: WTC 120 = 10.3 m WTC 170 = 14.2 m WTC 210 = 18.0 m... -
Page 9: Electrical Connection
Installation and operating instruction Gas condensing boiler WTC-GB 120 … 300-A 2 Safety 2.4.2 Electrical connection For all work carried out on live parts: ▪ Observe the accident prevention instructions BGV A3 and adhere to local direc- tives, ▪ tools in accordance with EN 60900 should be used. 2.4.3 Gas supply ▪... -
Page 10: Product Description
Installation and operating instruction Gas condensing boiler WTC-GB 120 … 300-A 3 Product description 3 Product description 3.1 Type key Example: WTC-GB 170-A Weishaupt Thermo Condens Fuel: Gas Type of construction: floor standing Ratings size: 170 kW Construction 3.2 Function 3.2.1 Components... -
Page 11: Electrical Parts
Installation and operating instruction Gas condensing boiler WTC-GB 120 … 300-A 3 Product description 3.2.2 Electrical parts 1 Safety temperature limiter (eSTL) 2 Ignition electrode 3 Boiler control panel (WCM-CUI) 4 Gas combi valve 5 Connection box (W-EAB) 6 Boiler electronics (WCM-CPU) 7 Ionisation electrode 8 Ignition unit 9 Fan... -
Page 12: Safety Devices
Installation and operating instruction Gas condensing boiler WTC-GB 120 … 300-A 3 Product description 3.2.3 Safety devices Safety temperature limiter (eSTL) The fuel supply is shut off and the fan and the pump run-on are activated if the tem- perature on the eSTL exceeds a value of 95 °C ( W12 ). The boiler restarts automatically, if the temperature drops below the flow setpoint value for 1 minute. -
Page 13: Program Sequence
Installation and operating instruction Gas condensing boiler WTC-GB 120 … 300-A 3 Product description 3.2.4 Program sequence Pre-purge At heat demand 1 the fan starts and dries to pre-purge speed 2. Ignition The fan drives down to ignition speed 3, ignition 4 switches on, the gas valves 5 open. -
Page 14: Technical Data Wtc 120 / Wtc 170
Installation and operating instruction Gas condensing boiler WTC-GB 120 … 300-A 3 Product description 3.3 Technical data WTC 120 / WTC 170 3.3.1 Approval data Gas Appliance Category 2ELL (DE, AT, CH) Type of installation CE-PIN CE-0063 BS 3948 SVGW 07-050-4 only in conjunction with a flue gas system in pressure class P1 or H1 to EN 14471. -
Page 15: Rating
Installation and operating instruction Gas condensing boiler WTC-GB 120 … 300-A 3 Product description 3.3.6 Rating WTC 120 WTC 170 Combustion heat rating Q 23.0 … 115.9 kW 27.0 … 161.0 kW Boiler capacity at 80/60 °C 22.4 … 114.0 kW 26.3 …... -
Page 16: Flue Gas System Data
Installation and operating instruction Gas condensing boiler WTC-GB 120 … 300-A 3 Product description 3.3.8 Flue gas system data WTC 120 WTC 170 Residual supply pressure at flue 163 Pa 166 Pa gas outlet Flue gas mass flow rate 10.3 … 51.1 g/s 12.1 …71.0 g/s Flue gas temperature at 80/60 °C 56 …... -
Page 17: Dimensions
Installation and operating instruction Gas condensing boiler WTC-GB 120 … 300-A 3 Product description 3.3.10 Dimensions WTC 120 / WTC 170 680 mm 953 mm 102 mm 154.5 154.5 205.5 360 mm 1 Safety valve connection 1¼" 2 Gas pipe 1" 3 Air inlet pipe DN 110 4 Condensate connection 5 Flue gas connection DN 160... -
Page 18: Technical Data Wtc 210 / Wtc 250 / Wtc 300
Installation and operating instruction Gas condensing boiler WTC-GB 120 … 300-A 3 Product description 3.4 Technical data WTC 210 / WTC 250 / WTC 300 3.4.1 Approval data Gas Appliance Category 2ELL (DE, AT, CH) Type of installation CE-PIN CE-0063 BS 3948 SVGW 07-050-4 only in conjunction with a flue gas system in pressure class P1 or H1 to EN 14471. -
Page 19: Rating
Installation and operating instruction Gas condensing boiler WTC-GB 120 … 300-A 3 Product description 3.4.6 Rating WTC 210 WTC 250 WTC 300 Combustion heat rating Q 44.0 … 200.0 kW 48.0 … 239.0 kW 53.0 … 276.0 kW Boiler capacity at 80/60 °C 42.9 …... -
Page 20: Flue Gas System Data
Installation and operating instruction Gas condensing boiler WTC-GB 120 … 300-A 3 Product description 3.4.8 Flue gas system data WTC 210 WTC 250 WTC 300 Residual supply pressure at flue gas outlet 145 Pa 182 Pa 189 Pa Flue gas mass flow rate 19.5 …... -
Page 21: Dimensions
Installation and operating instruction Gas condensing boiler WTC-GB 120 … 300-A 3 Product description 3.4.10 Dimensions WTC 210 / WTC 250 / WTC 300 680 mm 1205 mm 102 mm 154.5 154.5 205.5 360 mm 1 Safety valve connection 1½" 2 Gas pipe 1"... -
Page 22: Installation
Installation and operating instruction Gas condensing boiler WTC-GB 120 … 300-A 4 Installation 4 Installation Only valid in Switzerland When installing and operating in Switzerland the regulations of SVGW, VKF, and local and Cantonal regulations must be observed. Remove front panel ▶... -
Page 23: Installation Location
Installation and operating instruction Gas condensing boiler WTC-GB 120 … 300-A 4 Installation Installation location The installation room must comply with local regulations. For must be fitted with an opening leading to atmosphere with a minimum cross section (see DVGW-TRGI, work sheet G 600). -
Page 24: Installation
Installation and operating instruction Gas condensing boiler WTC-GB 120 … 300-A 5 Installation 5 Installation 5.1 Requirements for the heating water In support of guideline VDI 2035 the following requirements are applicable for heating water. ▪ Untreated fill and top-up water must be of domestic water quality (colourless, clear and without any sedimentation), ▪... -
Page 25: Fill Water Quantity
Installation and operating instruction Gas condensing boiler WTC-GB 120 … 300-A 5 Installation WTC 210 / WTC 250 / WTC 300 WTC 210 WTC 250 WTC 300 1 Fill and top up water quantity in litres 2 Total hardness in °dH 5.1.2 Fill water quantity If information about the fill water quantity is not available, the following table can be used to estimate the quantity. -
Page 26: Treatment Of Fill And Top-Up Water
Installation and operating instruction Gas condensing boiler WTC-GB 120 … 300-A 5 Installation 5.1.3 Treatment of fill and top-up water De-ionisation (recommended by Weishaupt) ▶ De-ionise the fill and top-up water completely. (recommendation: mixed bed procedure) When the heating water has been entirely de-ionised, additional top-up water up to 10% of the system contents may be untreated. -
Page 27: Hydraulic Connection
Installation and operating instruction Gas condensing boiler WTC-GB 120 … 300-A 5 Installation 5.2 Hydraulic connection ▶ Flush the heating system with at least twice the total system content. ✓ Contaminants are removed. ▶ Connect the supply and the return (Recommendation: Use shut off valves). ▶... -
Page 28: Condensate Connection
Installation and operating instruction Gas condensing boiler WTC-GB 120 … 300-A 5 Installation 5.3 Condensate connection Danger of poisoning by escaping flue gas Flue gas can escape if the siphon is not filled. Inhalation leads to dizziness, nausea and eventually death. ▶... -
Page 29: Gas Supply
Installation and operating instruction Gas condensing boiler WTC-GB 120 … 300-A 5 Installation 5.4 Gas supply Only an approved gas installer may carry out the gas side connection. Observe local regulations. The gas characteristics must match the data given on the name plate of the boiler. The condensing boiler is factory preset to Natural Gas E (G20). -
Page 30: Routing Of Air/ Flue Gas Circulation
Installation and operating instruction Gas condensing boiler WTC-GB 120 … 300-A 5 Installation 5.5 Routing of air/ flue gas circulation Air supply ducting The combustion air can be supplied: ▪ from the installation room (room air dependent operation), ▪ by connecting an external air inlet duct (room air independent operation). Flue gas system Local and building regulations must be observed when designing the flue gas ducting. -
Page 31: Electrical Installation
Installation and operating instruction Gas condensing boiler WTC-GB 120 … 300-A 5 Installation 5.6 Electrical installation Risk of electric shock Working on the unit when voltage is applied can lead to electric shock. ▶ Isolate unit from mains prior to carrying out work. ▶... -
Page 32: Wiring Diagram
Installation and operating instruction Gas condensing boiler WTC-GB 120 … 300-A 5 Installation 5.6.1 Wiring diagram Observe the instructions for the electrical installation (see Ch. 5.6). The maximum total current of all external loads must not exceed 4.5 A. WCM - CPU µC - Unit eBUS Modul... -
Page 33: Connection Additional Pump Via Output Va1
Installation and operating instruction Gas condensing boiler WTC-GB 120 … 300-A 5 Installation 5.6.2 Connection additional pump via output VA1 Observe the instructions for the electrical installation (see Ch. 5.6). ▶ Connect pump to wiring diagram. 230V MFA1 MFA2 eBUS L N PE 230 V/50 Hz 33-106... -
Page 34: Operation
Installation and operating instruction Gas condensing boiler WTC-GB 120 … 300-A 6 Operation 6 Operation 6.1 Operating interface 6.1.1 Operating panel ▶ Open flap. There are 4 operating elements available. reset 1 Enter button Confirm selection, confirm input 2 Dial knob Navigation through levels and parameters, change values 3 Reset button... -
Page 35: Display
Installation and operating instruction Gas condensing boiler WTC-GB 120 … 300-A 6 Operation 6.1.2 Display The display shows the current operating status and operating data. Symbols are shown or hidden depending on the system variation. When a remote control is connected (e. g. WCM-FS or WCM-EM) the symbols 9 …... -
Page 36: End User Level
Installation and operating instruction Gas condensing boiler WTC-GB 120 … 300-A 6 Operation 6.2 End User Level In the end user level, various information can be called up and values can be changed. Symbols are shown or hidden depending on the system variation. When a remote control is connected (e. -
Page 37: Settings End User Level
Installation and operating instruction Gas condensing boiler WTC-GB 120 … 300-A 6 Operation 6.2.2 Settings End User Level ▶ Turn the dial knob. ✓ Tool bar appears. ▶ Turn the dial knob. ✓ Selection cursor alternates between the symbols. ▶ Press Enter button. -
Page 38: Heating Engineer Level
Installation and operating instruction Gas condensing boiler WTC-GB 120 … 300-A 6 Operation 6.3 Heating Engineer Level Activate heating engineer level ▶ Turn the dial knob. ✓ Tool bar appears. ▶ Turn the dial knob and set the selection cursor below the spanner symbol. ▶... -
Page 39: Info Level
Installation and operating instruction Gas condensing boiler WTC-GB 120 … 300-A 6 Operation 6.3.1 Info level Display system values (i) ▶ Activate info level (see Ch. 6.3). ▶ Turn the dial knob. ✓ System values can be read. Depending on system variation, specific values are shown or hidden. Info system Unit... - Page 40 Installation and operating instruction Gas condensing boiler WTC-GB 120 … 300-A 6 Operation Info Sensors Unit i 37 Return temperature °C i 39 De-couple sensor temperature °C Info System info Unit i 42 Burner starts x 1000 i 43 Burner operating hours h x 100 i 44 Software version WCM-CPU...
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Page 41: Parameter Level
Installation and operating instruction Gas condensing boiler WTC-GB 120 … 300-A 6 Operation 6.3.2 Parameter level Show parameter (P) ▶ Activate parameter level (see Ch. 6.3). ▶ Turn the dial knob. ✓ Parameters can be read. Depending on system variation, specific parameters are shown or hidden. Changing values ▶... - Page 42 Installation and operating instruction Gas condensing boiler WTC-GB 120 … 300-A 6 Operation Parame- Basic configuration Range of values Factory ters setting P 16 Function input H1 0 = Heating circuit release 1 = Heating circuit setback/normal 3 = Standby with frost protection 4 = Return signal flue gas damper (fixed, when P 11 = EA ) P 17 Function input H2...
- Page 43 Installation and operating instruction Gas condensing boiler WTC-GB 120 … 300-A 6 Operation Parame- Circulation pump Range of values Factory ters setting P 40 Pump operation mode 0 = pump run-on heating 1 = pump continuous run P 41 Pump run-on time heat- 1 …...
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Page 44: Manual Start Up
Installation and operating instruction Gas condensing boiler WTC-GB 120 … 300-A 6 Operation 6.4 Manual start up ▶ Turn the dial knob. ✓ Tool bar appears. ▶ Set the selection cursor below the chimney sweep symbol. ▶ Press Enter button. ✓... -
Page 45: Start Manual Configuration
Installation and operating instruction Gas condensing boiler WTC-GB 120 … 300-A 6 Operation 6.5 Start manual configuration Manual configuration is used to match the settings with unit version. All sensors and actuators are re-entered during this process (see Ch. 7.2). ▶... -
Page 46: Control Options
Installation and operating instruction Gas condensing boiler WTC-GB 120 … 300-A 6 Operation 6.6 Control options Constant flow temperature control No additional sensors or thermostats are required for this control. The flow temper- ature is controlled at the value set in the end user level (see Ch. 6.2.2). Weather compensation A remote control station (WCM-FS) and an external sensor (QAC 31) are required for weather compensated control. - Page 47 Installation and operating instruction Gas condensing boiler WTC-GB 120 … 300-A 6 Operation Temperature remote control 2 … 10 V ▶ Connect analogue setpoint signal 2 … 10 V to input N1 (see Ch. 5.6.1). ✓ Signal is interpreted as supply setpoint. Minimum flow temperature (P 30 ) 10 V Maximum flow temperature (P 31 )
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Page 48: Boiler Circuit Pump
Installation and operating instruction Gas condensing boiler WTC-GB 120 … 300-A 6 Operation 6.8 Boiler circuit pump 6.8.1 General information The unit can drive an external boiler circuit via outputs MFA 1, MFA 2 or VA1. The pump remains activated as long as heat requirement prevails. When no more heat is needed, the pump runs for the specified run-on time (NLZ) preset in parame- ter 41 . -
Page 49: Frost Protection
Installation and operating instruction Gas condensing boiler WTC-GB 120 … 300-A 6 Operation 6.9 Frost protection Boiler frost protection Flow temperature < 8°C ▪ Burner is operated at minimum load. ▪ Outputs MFA and VA are active, if they have been parametered as heating circuit pump or feeder pump. -
Page 50: Inputs And Outputs
Installation and operating instruction Gas condensing boiler WTC-GB 120 … 300-A 6 Operation 6.10 Inputs and outputs Different applications can be realised with the freely selectable inputs and outputs. Output MFA and VA Output MFA is a non-isolated relay output. Output VA is potential free. All relay outputs can have a maximum loading of 3 A (AC1). - Page 51 Installation and operating instruction Gas condensing boiler WTC-GB 120 … 300-A 6 Operation Setting parameter 17 Description 3 = Burner lockout function If the input is closed, both the appliance and the pump switch off. Frost protection is not active. The display shows W24 , when the contact is closed.
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Page 52: Special System Parameters
Max run time flue gas damper 15 … 35 PWM setpoint pump inverse 0 / 1 – Factory setting. Parameter is safety relevant. Alterations are only permitted following consultation with the Weishaupt service de- partment. 52-106 83251702 • 1/2011-02 • La... -
Page 53: System Parameters Wtc 210 / Wtc 250 / Wtc 300
Max run time flue gas damper 15 … 35 PWM setpoint pump inverse 0 / 1 – Factory setting. Parameter is safety relevant. Alterations are only permitted following consultation with the Weishaupt service de- partment. 53-106 83251702 • 1/2011-02 • La... -
Page 54: Chimney Sweep Function
Installation and operating instruction Gas condensing boiler WTC-GB 120 … 300-A 6 Operation 6.12 Chimney sweep function Activate chimney sweep function ▶ Turn the dial knob. ✓ Tool bar appears. ▶ Set the selection cursor below the chimney sweep symbol. ▶... -
Page 55: Commissioning
Installation and operating instruction Gas condensing boiler WTC-GB 120 … 300-A 7 Commissioning 7 Commissioning 7.1 Prerequisite Commissioning must only be carried out by qualified personnel. Only correctly carried out commissioning ensures the operational safety of the unit. ▶ Prior to commissioning check: ▪... -
Page 56: Check Soundness Of Gas Valve Train
Installation and operating instruction Gas condensing boiler WTC-GB 120 … 300-A 7 Commissioning 7.1.1 Check soundness of gas valve train Soundness test ▶ Carry out soundness test: ▪ prior to commissioning, ▪ after all service and maintenance work. ▶ Switch off system. ▶... -
Page 57: Check Gas Connection Pressure
Installation and operating instruction Gas condensing boiler WTC-GB 120 … 300-A 7 Commissioning 7.1.2 Check gas connection pressure The gas connection pressure must be within the following ranges: Natural Gas E/H 17.0 … 20 … 25.0 mbar Natural Gas LL 20.0 …... -
Page 58: Adjusting The Boiler
Installation and operating instruction Gas condensing boiler WTC-GB 120 … 300-A 7 Commissioning 7.2 Adjusting the boiler ▶ During commissioning check: ▪ Maximum possible water throughput is ensured. ▪ Heat up is carried out with low flow temperatures and at low rating. ▪... - Page 59 Installation and operating instruction Gas condensing boiler WTC-GB 120 … 300-A 7 Commissioning 3. Adjust combustion The boiler is factory preset for operation with Natural gas E, H (G20). The O content must be checked and if necessary adjusted. WTC 120 Set O content at maximum rating ▶...
- Page 60 Installation and operating instruction Gas condensing boiler WTC-GB 120 … 300-A 7 Commissioning WTC 170 / WTC 210 / WTC 250 / WTC 300 Set O content at maximum rating ▶ Open gas isolating valve. ▶ Manually drive rating to maximum (see Ch. 6.4). ▶...
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Page 61: Calculate Combustion Heat Rating
Installation and operating instruction Gas condensing boiler WTC-GB 120 … 300-A 7 Commissioning 7.3 Calculate combustion heat rating Operating volume in m /h (gas throughput) Normal volume in m /h (gas throughput at 0 °C and 1013 mbar) Gas throughput determined at gas meter Time measured during gas throughput determination (V Conversion factor Gas temperature at meter in °C... -
Page 62: Shutdown
Installation and operating instruction Gas condensing boiler WTC-GB 120 … 300-A 8 Shutdown 8 Shutdown For breaks in operation: ▶ Switch off appliance. ▶ Close fuel shut off devices. ▶ If there is a risk of frost drain system. 62-106 83251702 •... -
Page 63: Servicing
During the service, all system components with high wear and tear or with a specific life span should be replaced. Weishaupt recommends a service contract is entered into to ensure regular inspec- tions. Repair work on the following components must only be carried out by the component manufacturer or their approved agent: ▪... - Page 64 Installation and operating instruction Gas condensing boiler WTC-GB 120 … 300-A 9 Servicing Following servicing ▶ Check soundness of gas valve train (see Ch. 7.1.1). ▶ Check soundness of flue gas and condensate carrying components. ▶ Check tightness of water carrying components. ▶...
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Page 65: Safety Components
Installation and operating instruction Gas condensing boiler WTC-GB 120 … 300-A 9 Servicing 9.1 Safety components ▶ Vital safety components must be replaced as soon as they reach their predefined lifetime. The predefined lifetime is not the warranty time specified in the terms and conditions of delivery and payment. -
Page 66: Check Differential Pressure At Air Pressure Switch
Installation and operating instruction Gas condensing boiler WTC-GB 120 … 300-A 9 Servicing 9.3 Check differential pressure at air pressure switch Observe notes on servicing (see Ch. 9). ▶ Remove right side panel. ▶ Remove hoses from the test points 1 on the air pressure switch. ▶... -
Page 67: Replacing Electrodes
Installation and operating instruction Gas condensing boiler WTC-GB 120 … 300-A 9 Servicing 9.4 Replacing electrodes Observe notes on servicing (see Ch. 9). Ignition electrode ▶ Remove ignition plug 5 and earth wire 3 with a slightly twist. ▶ Remove bolts 4. ▶... -
Page 68: Removing And Refitting Burner Tube
Installation and operating instruction Gas condensing boiler WTC-GB 120 … 300-A 9 Servicing 9.5 Removing and refitting burner tube Observe notes on servicing (see Ch. 9). Removal WTC 120 ▶ Close gas isolating valve. ▶ Remove electrodes (see Ch. 9.4). ▶... - Page 69 Installation and operating instruction Gas condensing boiler WTC-GB 120 … 300-A 9 Servicing Removal WTC 170 / WTC 210 / WTC 250 / WTC 300 ▶ Close gas isolating valve. ▶ Remove electrodes (see Ch. 9.4). ▶ Remove plugs for gas pressure switch 6, gas valve 5 and fan 2. ▶...
- Page 70 Installation and operating instruction Gas condensing boiler WTC-GB 120 … 300-A 9 Servicing Cleaning the burner tube Clean burner tube if required: ▶ Clean the inside of the burner tube (if necessary use compressed air to blow through from outside to inside). ▶...
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Page 71: Cleaning The Heat Exchanger
Installation and operating instruction Gas condensing boiler WTC-GB 120 … 300-A 9 Servicing 9.6 Cleaning the heat exchanger Observe notes on servicing (see Ch. 9). ▶ Remove left panel. ▶ Remove service covers from heat exchanger 1 and the condensate collector 4. ▶... -
Page 72: Check Flue Gas Pressure Switch
Installation and operating instruction Gas condensing boiler WTC-GB 120 … 300-A 9 Servicing 9.7 Check flue gas pressure switch Observe notes on servicing (see Ch. 9). ▶ Switch on main switch. ▶ Set boiler to Standby (see Ch. 6.2.2). If a remote control station is fitted, see op- erating instructions WCM-FS. -
Page 73: Troubleshooting
Installation and operating instruction Gas condensing boiler WTC-GB 120 … 300-A 10 Troubleshooting 10 Troubleshooting 10.1 Procedures for fault conditions Damage resulting from incorrect servicing The combustion plant could be damaged. ▶ Do not carry out more than 2 lockout resets successively. ▶... -
Page 74: Fault History
Installation and operating instruction Gas condensing boiler WTC-GB 120 … 300-A 10 Troubleshooting 10.2 Fault history The last 6 faults and the system status at the time of the faults are recorded in the fault history. Display the fault ▶ Activate the fault level (see Ch. -
Page 75: Rectifying Faults
Installation and operating instruction Gas condensing boiler WTC-GB 120 … 300-A 10 Troubleshooting 10.3 Rectifying faults 10.3.1 Warning codes Warning code Cause Rectification ▶ Temperature at eSTL > 95 °C Check the water flow. ▶ Temperature at supply sensor > 95 °C Check function of the pumps. - Page 76 Installation and operating instruction Gas condensing boiler WTC-GB 120 … 300-A 10 Troubleshooting Warning code Cause Rectification ▶ Communication to EM#3 is faulty Check address. ▶ Check the connection ▶ Replace the extension module. ▶ Communication to EM#4 is faulty Check address.
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Page 77: Error Codes
Installation and operating instruction Gas condensing boiler WTC-GB 120 … 300-A 10 Troubleshooting 10.3.2 Error codes Error code Cause Rectification ▶ Temperature at eSTL > 105 °C Check the water flow. ▶ Check function of the pumps. ▶ Vent boiler on the water side. ▶... - Page 78 Installation and operating instruction Gas condensing boiler WTC-GB 120 … 300-A 10 Troubleshooting Error code Cause Rectification ▶ Data record error burner Check the BCC connector and replace if nec- essary. ▶ Reset appliance, replace WCM-CPU on re- peat occurrence. ▶...
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Page 79: Operating Problems
Installation and operating instruction Gas condensing boiler WTC-GB 120 … 300-A 10 Troubleshooting 10.3.3 Operating problems Observation Cause Rectification ▶ Burner does not operate in spite of Burner rapid cycle interlock ac- Wait for the cooling down. ▶ heat demand tivated Check sensor and replace if necessary. -
Page 80: Spares
Installation and operating instruction Gas condensing boiler WTC-GB 120 … 300-A 11 Spares 11 Spares 1.01 1.03 1.02 1.10 1.04 1.13 1.14 1.15 1.11 1.14 1.13 1.12 1.15 1.16 (2 (2 1.21 1.07 1.05 1.08 1.09 1.07 1.08 1.09 1.16 1.06 1.20 1.22... - Page 81 Plug 6 mm white 446 034 1.10 Operating panel complete (without boiler control 482 101 22 09 2 panel) 1.11 Name plate -weishaupt- 125 x 35 793 815 1.12 Flap operating panel 482 101 22 12 7 1.13 Attachment for soft closing hinge 482 101 22 11 7 1.14...
- Page 82 Installation and operating instruction Gas condensing boiler WTC-GB 120 … 300-A 11 Spares 2.01 2.01 2.02 2.02 2.04 2.03 2.05 2.06 2.08 2.07 2.09 2.20 2.14 2.11 2.15 2.14 2.12 2.16 2.15 2.17 2.20 2.18 2.21 2.22 2.19 2.10 2.21 2.13 2.23 2.24...
- Page 83 Installation and operating instruction Gas condensing boiler WTC-GB 120 … 300-A 11 Spares Pos. Description Order No. 2.01 Cable tie with rivet 481 011 22 11 7 2.02 Grommet 481 011 02 23 7 2.03 Fixing plate operating unit 482 101 22 19 7 2.04 LCD cover 482 101 22 14 7...
- Page 84 Installation and operating instruction Gas condensing boiler WTC-GB 120 … 300-A 11 Spares 3.01 3.02 3.03 3.05 3.04 3.38 3.06 3.07 3.08 3.17 3.05 3.15 3.16 3.09 3.10 3.11 3.20 3.18 3.12 3.21 3.22 3.19 3.23 3.13 3.14 3.24 3.30 3.22 3.37 3.36...
- Page 85 Installation and operating instruction Gas condensing boiler WTC-GB 120 … 300-A 11 Spares Pos. Description Order No. 3.01 Insulation – WTC 120 482 101 30 42 7 – WTC 170 482 201 30 42 7 – WTC 210 482 301 30 42 7 –...
- Page 86 Installation and operating instruction Gas condensing boiler WTC-GB 120 … 300-A 11 Spares 3.01 3.02 3.03 3.05 3.04 3.38 3.06 3.07 3.08 3.17 3.05 3.15 3.16 3.09 3.10 3.11 3.20 3.18 3.12 3.21 3.22 3.19 3.23 3.13 3.14 3.24 3.30 3.22 3.37 3.36...
- Page 87 Installation and operating instruction Gas condensing boiler WTC-GB 120 … 300-A 11 Spares Pos. Description Order No. 3.24 Service cover condensate collector – WTC 120 / WTC 170 482 101 30 02 7 – WTC 210 / WTC 250 / WTC 300 482 301 30 02 7 3.25 Union nut G 1 1/4 siphon...
- Page 88 Installation and operating instruction Gas condensing boiler WTC-GB 120 … 300-A 11 Spares WTC 120 4.07 4.08 4.01 4.09 4.10 4.13 4.02 4.19 4.20 4.12 4.17 4.18 4.15 4.21 4.16 4.27 4.03 4.23 4.26 (7 (7 4.22 4.25 4.24 4.45 (1 (1 4.44 4.11...
- Page 89 Installation and operating instruction Gas condensing boiler WTC-GB 120 … 300-A 11 Spares Pos. Description Order No. 4.01 Burner tube WTC 120 482 101 30 23 7 4.02 Gasket burner flange 482 101 30 24 7 4.03 Burner flange complete 482 101 30 64 2 4.04 Stud M4 x 20...
- Page 90 Installation and operating instruction Gas condensing boiler WTC-GB 120 … 300-A 11 Spares WTC 170 / WTC 210 / WTC 250 / WTC 300 5.07 5.08 5.01 5.09 5.10 5.02 5.19 5.13 5.20 5.17 5.18 5.15 5.21 5.16 5.12 5.03 5.23 (6 (6 5.25...
- Page 91 Installation and operating instruction Gas condensing boiler WTC-GB 120 … 300-A 11 Spares Pos. Description Order No. 5.01 Burner tube – WTC 170 482 201 30 23 7 – WTC 210 482 301 30 23 7 – WTC 250 482 401 30 23 7 –...
- Page 92 Installation and operating instruction Gas condensing boiler WTC-GB 120 … 300-A 11 Spares WTC 170 / WTC 210 / WTC 250 / WTC 300 5.07 5.08 5.01 5.09 5.10 5.02 5.19 5.13 5.20 5.17 5.18 5.15 5.21 5.16 5.12 5.03 5.23 (6 (6 5.25...
- Page 93 Installation and operating instruction Gas condensing boiler WTC-GB 120 … 300-A 11 Spares Pos. Description Order No. 5.37 Pressure switch 5-40 mbar 250VAC 605 575 5.38 Gas connection piece complete WTC 170 482 201 30 51 2 5.39 Screw M5 x 16 402 208 5.40 Sealing ring 32 x 44 x 2 rubber cork R1'...
- Page 94 Installation and operating instruction Gas condensing boiler WTC-GB 120 … 300-A 11 Spares WTC 120 6.01 6.02 6.03 6.04 6.05 6.06 6.07 6.08 6.09 6.10 6.11 6.13 6.12 6.14 6.15 6.16 94-106 83251702 • 1/2011-02 • La...
- Page 95 Installation and operating instruction Gas condensing boiler WTC-GB 120 … 300-A 11 Spares Pos. Description Order No. 6.01 Plug cable fan control 482 101 22 26 2 6.02 Plug cable fan 230V 482 101 22 27 2 6.03 Ionisation electrode with gasket 482 101 30 08 2 6.04 Plug cable ignition transformer...
- Page 96 Installation and operating instruction Gas condensing boiler WTC-GB 120 … 300-A 11 Spares WTC 170 / WTC 210 / WTC 250 / WTC 300 7.01 7.02 7.03 7.04 7.07 7.05 7.06 7.08 7.09 7.10 7.11 7.13 7.12 7.14 7.15 7.16 96-106 83251702 •...
- Page 97 Installation and operating instruction Gas condensing boiler WTC-GB 120 … 300-A 11 Spares Pos. Description Order No. 7.01 Plug cable fan control 482 101 22 26 2 7.02 Plug cable fan 230V 482 101 22 27 2 7.03 Ionisation electrode with gasket 482 101 30 08 2 7.04 Plug cable ignition transformer...
- Page 98 Installation and operating instruction Gas condensing boiler WTC-GB 120 … 300-A 11 Spares 8.01 98-106 83251702 • 1/2011-02 • La...
- Page 99 Installation and operating instruction Gas condensing boiler WTC-GB 120 … 300-A 11 Spares Pos. Description Order No. 8.01 Service set Consisting of: ▪ Gasket burner flange ▪ Ignition electrode with earth cable ▪ Gasket ignition electrode ▪ Ionisation electrode ▪ Gasket ionisation electrode ▪...
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Page 100: Technical Documentation
Installation and operating instruction Gas condensing boiler WTC-GB 120 … 300-A 12 Technical documentation 12 Technical documentation 12.1 Internal boiler wiring WCM-CUI WCM-FS W-EAB WCM-CPU 6,3 AT X10B X10A X11C X11B X11A X12C X12B X12A 1 eSTL 2 Flow sensor 3 Return sensor 4 Flue gas sensor 5 Fan control... -
Page 101: Sensor Variables
Installation and operating instruction Gas condensing boiler WTC-GB 120 … 300-A 12 Technical documentation 12.2 Sensor variables eSTL External sensor(QAC 31) DHW sensor (B3) Return sensor Flow sensor De-couple sensor Flue gas sensor NTC 5 kΩ NTC 600Ω NTC 12 kΩ Ω... -
Page 102: Pneumatic Control Lines
Installation and operating instruction Gas condensing boiler WTC-GB 120 … 300-A 12 Technical documentation 12.3 Pneumatic control lines 12.3.1 Air pressure switch connection diagram 1 Air pressure switch (on/off pressure 1.6/1.4 mbar) 2 Gas combi valve 3 Venturi 4 Air inlet 12.3.2 Flue gas pressure switch connection diagram 1 Flue gas pressure switch (release pressure 5.5 mbar) 2 Condensate collector... -
Page 103: Conversion Table O2/Co2
Installation and operating instruction Gas condensing boiler WTC-GB 120 … 300-A 12 Technical documentation 12.4 Conversion table O2/CO2 content content in % dry in %v Natural Gas E Natural Gas LL Propane (max 11.7 % CO (max 11.5 % CO (max 13.7 % CO 10.5 10.3... -
Page 104: Notes
Installation and operating instruction Gas condensing boiler WTC-GB 120 … 300-A 13 Notes 13 Notes 104-106 83251702 • 1/2011-02 • La... -
Page 105: Key Word Index
Installation and operating instruction Gas condensing boiler WTC-GB 120 … 300-A 14 Key word index Fan speed ..............15, 19 Fault conditions ..............73 Adjusting ................58 Fault history ................74 Adjustment ................23 Faults ..................73 Air inlet pipe .................10 Filling the water ..............27 Air pressure ................61 Flow limit ................. - Page 106 Installation and operating instruction Gas condensing boiler WTC-GB 120 … 300-A 14 Key word index Temperature differential ............12 Temperature remote control ..........47 O2 content ........... 14, 18, 59, 60, 103 Throughput limit ............15, 19 Operating panel ............11, 34 Transport ..............
- Page 107 83251702 • 1/2011-02 • La...
- Page 108 Change of legal form from 22.11.2024: Max Weishaupt SE Change of legal form from 22.11.2024: Max Weishaupt SE www.weishaupt.de Max Weishaupt GmbH, D-88475 Schwendi Weishaupt (UK) Limited Neachells Lane, Willenhall, WV13 3RG www.weishaupt.co.uk Printed in Germany. All rights reserved. Product...
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