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For the heating engineer

Installation and maintenance instructions

ecoTEC

Gas fired wall hung high efficiency boiler

VU 656/4

Содержание ecoTEC VU 656/4

Страница 1: ...For the heating engineer Installation and maintenance instructions ecoTEC Gas fired wall hung high efficiency boiler VU 656 4 GB...

Страница 2: ...aning the heat exchanger 40 8 3 3 Checking the burner 40 8 3 4 Installing the compact thermal module 40 8 4 Cleaning the condensate ducts and the condensate siphon 41 8 5 Cleaning the air separation s...

Страница 3: ...nostics 44 9 1 1 Status codes 44 9 1 2 Diagnosis codes 45 9 1 3 Fault codes 48 9 1 4 Fault memory 48 9 2 Test programs 50 9 3 Resetting parameters to factory settings 50 10 Replacing components 51 10...

Страница 4: ...or and burner 5 Ignition electrode 6 Water pressure sensor 7 Pump 8 Connection provision filling combined filling and emptying valve 9 Connection provision expansion vessel 10 Electronic box 11 Siphon...

Страница 5: ...nadequate experience and or knowledge unless supervised by a person responsible for their safety or who has been given instructions from them as to how to operate the boiler Children must be watched t...

Страница 6: ...systems of output greater than 45 kW Part 1 Fundamental and design considerations Part 2 Selection of equipment Part 3 Installation commissioning and maintenance BS 4814 Specification for Expansion v...

Страница 7: ...tallations in cascade arrangement using the appliance type B23p a common non Vaillant flue system serving more than one appliance shall be used The requirements of the flue installation instructions m...

Страница 8: ...he same wall 300 mm O From the wall on which the terminal is mounted N A P From a vertical structure on the roof N A Q Above intersection with roof 300 mm Table 3 1 Position of the termination in a fa...

Страница 9: ...plied from the room or compartment the boiler is installed in 3 6 Electrical supply A 230 V 50 Hz single phase electricity supply fused to 3 Amp must be provided in accordance with the latest edition...

Страница 10: ...n lead to corrosion also in the flue system during ambient air dependent operating of the boiler The boiler must be operated independently of the ambient air particularly in hairdressing salons carpen...

Страница 11: ...hanging bracket centre of air flue gas pipe with 87 elbow 297 mm 2 Hanging bracket 3 Gas pipe 25 mm diameter gas connection R1 4 Connection provision expansion vessel 5 Connection for heating return 6...

Страница 12: ...the installation template vertically and fix it to the wall Mark the positions of the drill holes for the hanging bracket and also the position of the wall opening for the flue pipe on the wall Remov...

Страница 13: ...tion d Danger Danger of injury to persons and or material damage due to improper installation The Vaillant ecoTEC boiler may only be installed by a recognised skilled trade company who also assumes th...

Страница 14: ...m 10 K 15 K 20 K Stand alone boiler WH 160 WH 95 WH 95 Two cascade arrangement WH 280 WH 160 WH 95 Three cascade arrangement WH 280 WH 280 WH 160 Table 5 1 Selection of the low loss header No electric...

Страница 15: ...ween the boiler and the non oxygen barrier pipe It is essential that the boiler and the system have provision for water make up and expansion For more detailed information on examples of systems and s...

Страница 16: ...assign the external heating pump function to the plug 1 additional relay the value 2 must be specified at diagnosis point d 26 in the 2nd diagnosis level see Chap 9 1 2 The low loss header ensures in...

Страница 17: ...onsumer e g heating circuit 5 External cylinder primary pump 6 Cylinder A direct heating circuit and one hot water cylinder including charging pump and non return valve can be connected downstream of...

Страница 18: ...pe via a gas isolation valve Screw the boiler s gas supply pipe 1 gas tight with the gas isolation valve 3 see Fig 5 10 To do this use the R3 4 compression fitting supplied with the boiler This is sui...

Страница 19: ...kaway The ecoTEC boilers are equipped with a usual condensate collector from which the condensate is continuously removed via the drain pipe Connect the condensate drain of the boiler to a condensate...

Страница 20: ...1 in accordance with the separate manual and fill it with water see also Chap 6 2 3 5 8 Electrical connection e Danger Risk of fatal electric shock through contact with live connections The electrical...

Страница 21: ...4 8 5 8 2 Connecting controllers Mount the controllers in accordance with the corresponding operating and installation manuals The required connections to the electronic system of the boiler e g for e...

Страница 22: ...diagram Fig 5 16 or to the selected controller see corresponding operating manual 5 8 4 Additional relay grey plug on the PCB and 2 in 7 multifunction module Additional relay grey plug on the PCB With...

Страница 23: ...ed blue blue blue black black black black red red green green orange violet Flow sensor Return sensor Gas valve green yellow Igniter X14 Ignition electrode Appliance earth natural black Fan Mains Eart...

Страница 24: ...e connection factory link fitted 230 volt mains input Fan Internal pump Additional relay e g external heating pump adjustable in d 26 see table 9 3 Fan 230V Cylinder primary pump blue pink grey green...

Страница 25: ...eating system the cleaning agent must be applied carefully and subse quently removed from the heating system by draining it completely Cleaning agents should not remain in the heating system longer th...

Страница 26: ...rops frequently the reason for the loss of heating water must be identified and eliminated Open the combined filling and emptying valve and the draw off valve slowly and add water until the required s...

Страница 27: ...valve Ensure that the boiler has been installed in accordance with these instructions the integrity of the flue system and the flue seals as described in the flue installation instructions enclosed wi...

Страница 28: ...checklist 6 3 3 Checking the gas inlet working pressure Ensure that the gas inlet working pressure can be obtained with all other gas appliances in the property working Remove the front casing from th...

Страница 29: ...4 Checking the appliance function If the installation is complete and the gas setting has been checked perform a function check before starting up the boiler and handing it over to the operator Commis...

Страница 30: ...anuals in a handy location near the ecoTEC but not in or on the boiler Instruct the user about measures taken to ensure the supply of combustion air and removal of flue gas Point out that these measur...

Страница 31: ...value display flashes Save the new value by holding the i button pressed for about 5 seconds until the display stops flashing You can finish the diagnosis mode as follows Push the i and buttons simult...

Страница 32: ...ot active 8 remote control eBUS not yet supported 9 legionella pump not active 1 d 28 Switch of relay 2 on the multifunction module 2 in 7 1 circulation pump 2 ext Pump 3 charging pump 4 vapour extrac...

Страница 33: ...s switched on every 25 minutes for 5 minutes once the overrun time has elapsed 7 2 3 Setting of maximum flow temperature The maximum flow temperature for the heating is set at the factory to 75 C Unde...

Страница 34: ...ay The ecoTEC electronics incorporate a feature that enables you to determine the maintenance intervals for the boiler This function serves to provide a signal after a specific adjustable number of bu...

Страница 35: ...ctual condition of the respective boiler and compare it with the specified condition This is done by measuring checking and observing Maintenance is required in order to eliminate any deviations of th...

Страница 36: ...ervice valves in the heating flow and return Remove the front casing from the boiler When removing any water carrying components ensure that water is kept away from all electrical components Always pe...

Страница 37: ...mm hexagon socket spanner to turn the screw Turn to the left higher CO2 concentration Turn to the right lower CO2 concentration hNote Natural gas Only perform the adjustment in increments of 1 8 turn...

Страница 38: ...correct them if necessary x x 8 Close the gas isolation valve and the service valves x 9 Dump the pressure in the boiler on the water side observe pressure gauge and check the charge pressure of the...

Страница 39: ...ividual parts form the compact thermal module component H Danger Danger of burning or scalding There is danger of being burned or scalded at the compact thermal module and at all water carrying compon...

Страница 40: ...trap via the opening 4 Allow the cleaning agent to take effect for approximately 20 minutes then rinse off the loose dirt To clean the coils you can use a brush with synthetic bristles but no aids wi...

Страница 41: ...the PWM signal cable on the bottom of the fan 8 and the cable to the gas valve 10 Connect the gas supply 9 with a new seal to the gas valve Use the spanner flat at the flexible gas line to hold up the...

Страница 42: ...ll the siphon cartridge with water Insert new seals at all points and check the condensate duct for leaks 8 5 Cleaning the air separation system H Danger Danger of burning or scalding All water carryi...

Страница 43: ...replaced 8 7 Checking gas connection pressure inlet working pressure To check the connection pressure proceed as described in Chap 6 3 3 8 8 Checking the CO2 concentration To check the CO2 concentrat...

Страница 44: ...mode DHW S 20 Hot water requirement S 21 Fan start up S 22 Pump pre run S 23 Ignition S 24 Burner on S 25 Pump fan overrun S 26 Fan overrun S 27 Mode pump overrun S 28 Burner off period Other S 30 Hea...

Страница 45: ...simultaneously The display shows d 0 Scroll to the desired diagnosis number on the 1st diagnosis level with the or buttons see Table 9 2 Push the i button The display shows the relevant diagnosis info...

Страница 46: ...mmer mode d 24 not relevant not relevant d 25 Hot water generation enabled by eBUS controller 1 yes 0 no d 29 Actual value sensor circulation water quantity Actual value in m3 h d 30 Control signal fo...

Страница 47: ...lenoid valve 6 ext fault message 7 not active 8 remote control eBUS not yet supported 9 legionella pump not active d 50 Offset for minimum speed in rpm 10 adjustment range 0 to 300 factory setting 30...

Страница 48: ...947 h Pressing the i again causes the display to switch back to the diagnosis point that was called up Table 9 3 Diagnosis codes at diagnosis level 2 continued 9 1 3 Fault codes The fault codes displa...

Страница 49: ...tch off flame simulation Moisture on electronics electronics flame monitor defective gas solenoid valve leaking F 28 Failure during start up ignition unsuccessful gas meter defective gas pressure moni...

Страница 50: ...pwards Push the i to operate the boiler now and to start the test programme Push i and simultaneously to exit the test programs You can also exit the test programs by not pushing any button for 15 min...

Страница 51: ...box Use only new seals and O rings After completing the work perform a tightness check and function check see Chap 6 4 10 2 Replacing the burner d Danger Before replacing the component observe the saf...

Страница 52: ...e both components at the same time it is essential to check whether the correct replacement display for this equipment variant is available You cannot use any other replacement displays Enter the numb...

Страница 53: ...water volume when T 20 K 2750 l h max flow temperature approx 85 C Maximum operating pressure 3 bar condensate volume pH value 3 0 4 0 6 5 l h water content 6 5 l flue gas mass flow min max 6 5 30 3...

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Страница 56: ...0020029173_01 GB 082010 Subject to alterations...

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Vaillant ecoTEC VU 656/4, Инструкция по установке и обслуживанию

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