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MHG Heating Ltd Unit 4 Epsom Downs Metro Centre, Waterfield, Tadworth, Surrey KT20 5LR

Telephone 01737 358000 Fax 08456 448803 Email

[email protected]

Web www.mhgheating.co.uk

010517

6.0 Electrical Connections

Basic electrical connection for all types of Wallcon

The wiring connections of the Wallcon boilers are located within two
terminal boxes mounted to the bottom of the boilers case.

All high voltage wiring is located in the left hand box and the low
voltage wiring in the right hand box.

All wiring via terminal blocks provided.

High voltage Wiring terminals

Power in to Boiler

230 Volts - 50 Hertz

Q2 Heating circuit pump

Live, Neutral, Earth, (Max switching 0.5Amp) (Q2)
Can be used as Multifunctional Output

Q3 Hot water charging pump

Live, Neutral, Earth, (Max switching 0.5Amp) (Q3)
Can be used as a Multifunctional Output

*Additional wiring to be added at commissioning if
required.

Additional outputs can be configured if required.

Low Voltage Wiring Terminals

Room Thermostat

Volt Free Enable, Not Polarity Sensitive, Room
stat/BMS ( <24 Volts) (H5)

0-10V enable *

Polarity sensitive, Max 10Volts, To be configured
at Commissioning, (H3)

Outside Air Temperature Sensor

QAC34 sensor provided for direct on boiler
weather compensation. (B9)

Cascade Sensor

QAD36 strap on sensor, provided on request.

Hot Water Enable

Thermostat or Sensor, to be configured at
commissioning, (B3)

Cascade Communication *

To be wired from Master boiler to all slave boilers
in parallel, polarity sensitive.

*Additional wiring to be added at commissioning if
required.

Additional outputs can be configured if required.

* Screened cable must be used for this connection.

Содержание Wallcon 115

Страница 1: ...td Unit 4 Epsom Downs Metro Centre Waterfield Tadworth Surrey KT20 5LR Telephone 01737 358000 Fax 08456 448803 Email info mhgheating co uk Web www mhgheating co uk 010517 Installation and Operating Ma...

Страница 2: ...Single Unit Option 4 14 7 4 Hydraulic Design Single Unit Option 5 15 7 5 Hydraulic Design Single Unit Option 6 16 7 6 Hydraulic Design Single Unit Option 7 17 7 7 Hydraulic Design Single Unit Option...

Страница 3: ...gas appliances of rated input not exceeding 70 kW net 1st 2nd and 3rd family gases Part 2 Specification for installation and maintenance of ventilation for gas appliances BS 5449 1990 Specification f...

Страница 4: ...ntee if the commissioning of the object of delivery has been carried out by MHG staff or the authorised supplier If the customer has followed MHG s instructions relating to the treatment and maintenan...

Страница 5: ...e gas Temperature 80 60 C C 59 77 56 3 88 59 4 82 5 Gas Diaphragm G20 G25 mm 10 7 Gas Diaphragm G31 mm 7 9 5 9 5 CO2 Emissions G20 8 8 9 3 8 7 9 4 9 2 9 4 CO2 Emissions G25 8 7 9 2 8 8 9 6 CO2 Emissio...

Страница 6: ...8803 Email info mhgheating co uk Web www mhgheating co uk 010517 4 0 Dimensions Label Connections Model Dimensions F System Flow 1 115 W 557mm L 580mm H 865mm R System Return 1 125B W 557mm L 580mm H...

Страница 7: ...field Tadworth Surrey KT20 5LR Telephone 01737 358000 Fax 08456 448803 Email info mhgheating co uk Web www mhgheating co uk 010517 4 1 Installation and Service Clearances Clearances Front Minimum of 6...

Страница 8: ...refuse liability of any damage cause to the boiler as a result of miss handling during on site transportation Caution Damage to the unit due to it being lifted and carried incorrectly Do not hold the...

Страница 9: ...k 010517 5 1 Case Removal The procedure to remove the case from a Wallcon boiler is detailed below Remove the six case retaining screws from the bottom of the boiler as shown in the image below Once t...

Страница 10: ...tional Output Q3 Hot water charging pump Live Neutral Earth Max switching 0 5Amp Q3 Can be used as a Multifunctional Output Additional wiring to be added at commissioning if required Additional output...

Страница 11: ...utput Terminal Description Label Type Mains power Input Brown Live Blue Neutral Yellow Green Earth 230Volts 50Hz Low Voltage Input Output Terminal Description Label Type Outside Air Sensor Input Outsi...

Страница 12: ...ains power Input Brown Live Blue Neutral Yellow Green Earth 230Volts 50Hz Heating Circuit Pump Output Q2 Central Heating Pump Max 0 5Amp 230Volts 50Hz Low Voltage Input Output Terminal Description Lab...

Страница 13: ...h 230Volts 50Hz Heating Circuit Pump Output Q2 Central Heating Pump Max 0 5Amp 230Volts 50Hz DHW Pump Output Q3DHW Storage Pump Max 0 5Amp 230Volts 50Hz Low Voltage Input Output Terminal Description L...

Страница 14: ...ditional internal wiring required at Commissioning 230volts 50Hz 3 Way Valve Close Output Additional internal wiring required at Commissioning 230volts 50Hz DHW Pump Output Q3DHW Storage Pump Max 0 5A...

Страница 15: ...itional internal wiring required at Commissioning Max 0 5Amp 230Volts 50Hz DHW Pump Output Q3DHW Storage Pump Max 0 5Amp 230Volts 50Hz Low Voltage Input Output Terminal Description Label Type Outside...

Страница 16: ...ning 230volts 50Hz HC2 3 Way Valve Close Output Additional internal wiring required at Commissioning 230volts 50Hz DHW Pump Output Q3DHW Storage Pump Max 0 5Amp 230Volts 50Hz Low Voltage Input Output...

Страница 17: ...Output Terminal Description Label Type Cascade Communication Output Cascade Module Screened Cable must be used Coms Outside Air Sensor Input Outside temperature Sensor QAC34 sensor provided Room Therm...

Страница 18: ...stem Option 8 Electrical Connections BMS System Option 8 High Voltage Input Output Terminal Description Label Type Mains power Input Brown Live Blue Neutral Yellow Green Earth 230Volts 50Hz Low Voltag...

Страница 19: ...from the room via adequate ventilation C13 A Balanced Flue System Room sealed installation A concentric flue installed horizontally C33 A Balanced Flue System Room sealed installation A concentric fl...

Страница 20: ...Vertically from a terminal on the same wall 1500 2500 2500 L Horizontally from a terminal on the same wall 300 7 232 x kW 93 708 9 5156 x kW 833 91 M Above an opening into the building 300 7 232 x kW...

Страница 21: ...ve on the Mains Cold Water pipework Temporary Connecting Hose which must be disconnected after use Control Valve on the heating system For Category 4 systems the approved method of filling must compri...

Страница 22: ...oiler Following cleaning and flushing the system MUST be dosed with a good quality water treatment to prevent corrosion and the formation of scale FAILURE TO OBSERVE THESE REQUIREMENTS WILL RENDER THE...

Страница 23: ...t Setting Select 6 Navigation and Setting Rotary 7 Escape Button 8 Reset Button 9 Service Connector for BSB data BUS 10 Hot Water Mode Select Symbol Description Automatic Mode Continuous Operation Day...

Страница 24: ...nth 01 01 31 12 dd mm 3 Year 2004 2099 yyyy Operator Section 20 Language English Deutsch Franz sisch Italienisch Niederl ndisch Spanisch Portugiesisch D nisch Schwedisch Finnisch English 22 Info Tempo...

Страница 25: ...t Phase Off 00 00 24 00 22 00 hh mm 563 2 nd Phase On 00 00 24 00 24 00 hh mm 564 2 nd Phase Off 00 00 24 00 24 00 hh mm 565 3 rd Phase On 00 00 24 00 24 00 hh mm 566 3 rd Phase Off 00 00 24 00 24 00...

Страница 26: ...eat request 0 600 0 S 750 Room Influence 1 100 760 Room temp limitation 0 5 4 1 C 761 Heating limit room controller 0 100 770 Boost heating 0 20 5 C 780 Quick setback Off Down to Reduced Setpoint Down...

Страница 27: ...35 0 C 1020 Heating Curve Slope 0 10 4 00 1 50 3 20 1021 Heating Curve Displacement 4 5 4 5 0 0 C 1026 Heating Curve Adaption Off On Off 1030 Summer Winter heating limit 8 30 18 C 1032 24 Hour heating...

Страница 28: ...ctrl No Yes No 1198 Operating level changeover Frost protection Reduced Comfort Reduced 1200 Optg mode changeover None Protection Reduced Comfort Automatic Protection Heating Circuit 3 1300 Operating...

Страница 29: ...ting level According characteristic curve Temp differential nominal According characteristic curve 1481 Starting speed 0 100 100 1482 Pump speed min P1485 P1483 50 1483 Pump speed max P1482 P1486 100...

Страница 30: ...temp setpoint max P2110 95 80 C 2121 Syst Pump on heat gen lock Off On Off 2130 Mixing valve boost 0 50 10 C 2132 Actuator type Two position Three position Three position 2133 Switching differential...

Страница 31: ...ing 4800 Partial charging setpoint 8 95 C 4810 Full charging Off Heating mode Always Off 4811 Full charging temp min 8 80 8 C 4813 Full charging sensor With B4 With B42 B41 With B42 B41With B42 B41 DH...

Страница 32: ...45 Flow setp compensation Tv 0 60 0 S 5146 Full charging with B36 No Yes Yes Min 5148 Min start temp diff Q33 20 20 0 C 5151 Excess intermcir temp delay 0 255 30 S Instantaneous Water Heater 5420 Flow...

Страница 33: ...3 Error code 2 0 65535 No error 6815 Internal diagnostic code 2 0 255 6816 Burner control phase 2 6820 History 3 0 65535 6823 Error code 3 0 65535 No error 6825 Internal diagnostic code 3 0 255 6826 B...

Страница 34: ...phase 14 6940 History 15 0 65535 6943 Error code 15 0 65535 No error 6945 Internal diagnostic code 15 0 255 6946 Burner control phase 15 6950 History 16 0 65535 6953 Error code 16 0 65535 No error 695...

Страница 35: ...W 0 2147483647 0 kWh 8380 Total gas HC DHW 0 2147483647 0 kWh 8381 Gas energy heating 0 2147483647 0 kWh 8382 Gas DHW 0 2147483647 0 kWh 8383 Gas HC DHW 0 2147483647 0 kWh 8390 Current phase number 1...

Страница 36: ...x valve 2 close Off On Off 8765 Speed heating circuit pump 2 0 100 0 8770 Room temp 2 0 0 50 C 8771 Room setpoint 2 4 0 35 C 8772 Room temp 2 model 0 0 50 C 8773 Flow temp 2 0 0 140 C 8774 Flow temp s...

Страница 37: ...0 8980 Buffer temp 1 0 0 140 0 C 8981 Buffer setpoint 0 140 0 C 8982 Buffer temp 2 0 0 140 0 C 8983 Buffer temp 3 0 140 0 C 9005 Water pressure H1 0 0 10 0 Bar 9006 Water pressure H2 0 0 10 0 Bar 9009...

Страница 38: ...517 10 2 Weather Compensation Slope The correct positioning of the outside temperature sensor is fundamental for the correct operation of the climate control function of the boilers The sensor must be...

Страница 39: ...torage tank temperature 1 top sensor error 71 Storage tank temperature 2 bottom sensor error 72 Storage tank temperature 3 center sensor error 78 Water pressure sensor error 81 LPB short circuit or no...

Страница 40: ...xceeded 196 Maximum duration of the refill per week exceeded 209 Fault heating circuit 214 Monitoring of motor 215 Fault fan air diverting valve 216 Fault boiler 217 Sensor error 218 Pressure supervis...

Страница 41: ...w temperature heating circuit 3 372 209 Temperature limiter heating circuit 3 373 103 Extension module 3 374 169 Sitherm Pro calculation 375 169 BV stepper motor 376 169 Drift test limit value 377 169...

Страница 42: ...o 100 using the NAVIGATION button then press OK to set 5 Set the CO2 value by turning the throttle screw shown in the image below 6 Adjustments are to be done in small increments and the combustion al...

Страница 43: ...t the bottom and pull the bottom forward Now lift the case up and off the locating bolts at the top 2 Remove the gas solenoid wiring Detach the gas valve from the supply pipe via the union Ensure gas...

Страница 44: ...ions The results of the Inspections undertaken above must be acted upon and all discrepancies should be recorded on the Service Report and brought to the Client End User s attention Undertake any main...

Страница 45: ...y the resistance between the burner and burner door must be check with a multi meter to ensure that it is less than 1 Ohm 1 Ohm m Clean with abrasive material and inspect the ignition electrode and re...

Страница 46: ...Ltd 46 MHG Heating Ltd Unit 4 Epsom Downs Metro Centre Waterfield Tadworth Surrey KT20 5LR Telephone 01737 358000 Fax 08456 448803 Email info mhgheating co uk Web www mhgheating co uk 010517 13 0 Tro...

Страница 47: ...HG Heating Ltd 47 MHG Heating Ltd Unit 4 Epsom Downs Metro Centre Waterfield Tadworth Surrey KT20 5LR Telephone 01737 358000 Fax 08456 448803 Email info mhgheating co uk Web www mhgheating co uk 01051...

Страница 48: ...Unit 4 Epsom Downs Metro Centre Waterfield Tadworth Surrey KT20 5LR Telephone 01737 358000 Fax 08456 448803 Email info mhgheating co uk Web www mhgheating co uk 010517 14 0 Internal Wiring Wiring loom...

Страница 49: ...pumps Label Number Item Description Label Number Item Description 1 Boiler Circulation Pump 10 Flue Gas Temperature Sensor 2 Safety Relief Valve 11 Ignition Electrode 3 Condensate Syphon 12 Air Gas M...

Страница 50: ...elephone 01737 358000 Fax 08456 448803 Email info mhgheating co uk Web www mhgheating co uk 010517 15 1 Spares Diagram Label Number Item Description 6 Air Intake Terminal 16 Flue outlet 20 Heat Exchan...

Страница 51: ...448803 Email info mhgheating co uk Web www mhgheating co uk 010517 15 2Spares Diagram Label Number Item Description 7 Condensate Discharge Pipe 8 Boiler Flow Connection 9 Gas Connection 10 Boiler Ret...

Страница 52: ...48803 Email info mhgheating co uk Web www mhgheating co uk 010517 15 3Spares Diagram Label Number Item Description 1 Boiler Circulation Pump 2 Condensate Syphon 3 Heat Exchanger Thermal Fuse 4 Return...

Страница 53: ...Heating Ltd 53 MHG Heating Ltd Unit 4 Epsom Downs Metro Centre Waterfield Tadworth Surrey KT20 5LR Telephone 01737 358000 Fax 08456 448803 Email info mhgheating co uk Web www mhgheating co uk 010517 N...

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