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1 Safety

6

Installation and maintenance instructions ecoFIT pure 0020230531_01

locations, choose a separate installation
room in which the room air is technically
free of chemical substances.

1.4.11 Risk of material damage caused by

leak detection sprays and liquids

Leak detection sprays and liquids block the
filter of the mass flow sensor on the Venturi,
and thus destroy the mass flow sensor.

During repair work, do not apply any leak
detection sprays or liquids to the covering
cap on the filter of the Venturi.

1.4.12 Risk of material damage caused by

frost

Do not install the product in rooms prone
to frost.

1.4.13 Risk of material damage caused by

using an unsuitable tool

Use the correct tool to tighten or loosen
screw connections.

1.5

Regulations (directives, laws,
standards)

Observe the national regulations, stand-
ards, guidelines and laws.

Summary of Contents for ecoFIT pure 825

Page 1: ...d maintenance instructions ecoFIT pure 825 835 GB IE Installation and maintenance instructions Publisher manufacturer Vaillant GmbH Berghauser Str 40 D 42859 Remscheid Tel 49 21 91 18 0 Fax 49 21 91 1...

Page 2: ...ng the condensate siphon 17 7 9 Filling the hot water circuit 17 7 10 Checking the gas flow rate 17 7 11 Checking and adjusting the gas settings 18 7 12 Checking leak tightness 19 8 Adapting the unit...

Page 3: ...Contents 0020230531_01 ecoFIT pure Installation and maintenance instructions 3 Index 47...

Page 4: ...heating installations and for hot water generation Depending on the gas fired boiler type the products referred to in these instructions must only be installed and operated in con junction with the a...

Page 5: ...product from the power supply by switching off all power supplies electrical partition with a contact opening of at least 3 mm e g fuse or line protec tion switch Secure against being switched back on...

Page 6: ...he mass flow sensor on the Venturi and thus destroy the mass flow sensor During repair work do not apply any leak detection sprays or liquids to the covering cap on the filter of the Venturi 1 4 12 Ri...

Page 7: ...mation visit www centralheating co uk 3 Product description 3 1 Compartment Ventilation The boilers are very high efficiency appliances As a consequence the heat loss from the appliance casing during...

Page 8: ...unit exceeds the weight that can be lifted by a single person 4 1 1 General Hold the load as close as possible to your body Avoid rotational movements Instead reposition your feet If the unit is being...

Page 9: ...m clearance A 150 mm upper air flue gas connection 20 mm air flue gas connection on the rear B 150 mm C 5 mm 70 mm if the side panels ought to be removed D 600 mm It is not necessary to maintain a cle...

Page 10: ...l Wall mount the product as described using the permitted fixing material provided on site 4 9 Removing installing the front casing 4 9 1 Removing the front casing B C A 1 1 1 Undo the two screws 1 2...

Page 11: ...sure or operating pressure may cause damage to the gas valve Check the leak tightness of the gas valve using a maximum pressure of 11 kPa 110 mbar Caution Risk of material damage caused by corro sion...

Page 12: ...hat the materials from which the drain lines are made are suitable install a system for neutralising the condensate Note The condensate drain pipework must have a continuous fall 45 mm per metre and s...

Page 13: ...the slot provided on the PCB 5 5 5 Establishing the power supply 1 1 Observe all valid regulations 2 Ensure that the rated mains voltage is 230 V 3 Set up a fixed connection and install a partition w...

Page 14: ...ed for a maximum rated current of 7 A Connect the controller to the main plug X1 Terminal assignment L line N neutral conductor earth Draw the operator s attention to the fact that the follow ing feat...

Page 15: ...he burner and pump are switched off to fill or drain the product 7 Start up 7 1 Carrying out the initial start up Initial start up must be carried out by a customer service technician or an authorised...

Page 16: ...e pH value of the heating water is between 6 5 and a maximum of 8 5 Caution Risk of material damage if the heating water is treated with unsuitable additives Unsuitable additives may cause changes in...

Page 17: ...ate siphon C 2 3 1 A B 1 Unclip the lower section of the siphon 1 from the up per section of the siphon 2 2 Remove the float 3 3 Fill the lower section of the siphon with water up to 10 mm below the u...

Page 18: ...oiler operating at full load check that the gas inlet working pressure at the reference test point 2 complies with the requirements Permissible connection pressure Great Bri tain Natural gas G20 1 7 2...

Page 19: ...ure gauge The minimum pressure should not be less than 0 1 MPa 1 bar in any installation If the system is to be treated with an inhibitor it should be applied at this stage in accordance with the manu...

Page 20: ...0 8 0 10 0 11 5 60 2 0 2 0 3 5 5 0 6 0 7 5 9 0 65 2 0 1 5 2 5 3 5 4 5 5 5 6 5 70 2 0 1 5 2 0 2 5 2 5 3 0 3 5 75 2 0 1 0 1 0 1 0 1 0 1 0 1 0 TFlow target C Set maximum burner anti cycling time min 35 4...

Page 21: ...hot water temperature Danger Risk of death from Legionella Legionella multiply at temperatures below 60 C Ensure that the operator is familiar with all of the Anti legionella measures in order to com...

Page 22: ...5 Close the service valves in the heating flow and in the heating return 6 Close the service valve in the cold water pipe 7 Drain the product if you want to replace water bearing components of the pro...

Page 23: ...o the electronics box 10 5 5 Replacing the expansion vessel 1 Drain the product Page 28 B C 1 2 3 A D 2 Undo the nut 3 3 Remove both screws on the support plate 1 4 Remove the support plate 5 Pull out...

Page 24: ...flow sensor 1 B A 1 Push the volume flow sensor s handle towards the rear of the boiler 2 Pull the volume flow sensor 1 out of its holder 3 Remove the plug from the volume flow sensor 4 Connect the pl...

Page 25: ...Wait until the value that is read is stable Waiting period for reading a stable value 5 min 1 3 Unscrew the cover from the flue gas analysis point 1 4 Measure the CO content at the flue gas analysis p...

Page 26: ...Remove the flue gas pipe 2 3 4 5 A B 7 Remove the air intake pipe 3 8 Remove the plugs from the gas valve 4 and from the fan 5 A C D B 6 9 Remove the gas air mixture unit 6 7 7 8 10 Remove the burner...

Page 27: ...up per section of the siphon 2 2 Remove the float 3 3 Flush out the float and lower section of the siphon with water 4 Fill the lower section of the siphon with water up to 10 mm below the upper edge...

Page 28: ...pansion vessel in accordance with the static height of the heating installation ideally with ni trogen otherwise with air Ensure that the drain valve is open when topping up 3 If water escapes from th...

Page 29: ...et target temperature for the domestic hot wa ter cylinder Current value Not adjustable d 08 Status of the 230 V ther mostat Current value 0 Room thermostat open no heat requirement 1 Room thermostat...

Page 30: ...e d 23 Status of the heating demand Current value off Heating off Summer mode on Heating on Not adjustable d 24 Status of the pressure monitor 0 1 off Not switched on Switched Not adjustable d 25 Stat...

Page 31: ...deactivated 3 Hot water activated min target value 60 C 0 Adjustable d 60 Number of blocks by the temperature limiter Current value Not adjustable d 61 Number of unsuccessful ignitions Current value...

Page 32: ...of the eBUS room thermostat Current value off Not connected on Connected Not adjustable d 91 Status DCF77 Current value Not adjustable d 93 Setting the product code 0 99 1 The Device Specific Number D...

Page 33: ...pressure S 88 Product purging active S 91 Maintenance Demo mode S 96 Automatic test programme Return temperature sensor heating demands blocked S 97 Automatic test programme Water pressure sensor heat...

Page 34: ...the eBUS F 61 Fault Gas valve control system Short circuit short to earth in cable harness for the gas valve gas valve defective coils shorted to earth electronics defective F 62 Fault Gas valve swit...

Page 35: ...ave been installed on the same pipe incorrect pipe Temperature sensor not connected or is connected incorrectly F 86 Fault Underfloor heating contact Underfloor heating contact open sensor disconnecte...

Page 36: ...X1 FUS X106 X32 X90 X12 X35 X1 L N RT 230Vac X35 4 1 3 2 eBUS RT 24V Burner off X106 1 3 4 1 3 3 1 2 M 1 3 4 6 1 2 3 M 5 4 2 1 2 1 2 1 N L L 24V 230V 24V 230V 2 7 8 9 10 12 11 1 4 3 5 6 14 13 1 Main...

Page 37: ...4 5 10 11 6 13 X51 X1 X21 L N RT 230Vac 4 3 1 2 eBUS RT 24V Burner off X106 X35 1 3 4 1 3 3 1 2 M 1 3 4 6 1 2 3 M 4 3 2 1 5 4 2 1 5 6 7 8 2 1 2 1 N L L X35 24V 230V 24V 230V 2 7 8 9 10 12 11 1 4 5 6...

Page 38: ...ssary approx 0 03 MPa 0 3 bar below the system filling pressure X 9 Remove the gas air mixture unit X 10 Check the seals in the combustion area If you see any damage replace the seals Replace both bur...

Page 39: ...s 75 mm E Below eaves 200 mm F Below balconies or car port roofs 200 mm G From vertical wastewater pipes or down pipes 150 mm H From external or internal corners 200 mm I Above floors roofs or balconi...

Page 40: ...his manual 1 Dimensions D E F and G These clearances may be reduced to 25 mm without affecting the performance of the boiler In order to ensure that the con densate plume does not affect adjacent surf...

Page 41: ...ntenance instructions 41 H Commissioning Checklist Heating and Hotwater Industry Council HHIC www centralheating co uk Benchmark Commissioning and Servicing Section It is a requirement that the boiler...

Page 42: ...th the appropriate Building Regulations and then handed to the customer to keep for future reference GAS BOILER SYSTEM COMMISSIONING CHECKLIST CONTROLS Optimum start control Fitted Fitted Fitted Fitte...

Page 43: ...g system is serviced regularly and that the appropriate Service Interval Record is completed Service Provider SERVICE RECORD SERVICE 01 AND AND SERVICE 02 AND AND SERVICE 03 AND AND SERVICE 04 AND AND...

Page 44: ...ow to set boiler to minimum rate contact Technical Helpline for advice CHECK CO AND COMBUSTION RATIO AT MINIMUM RATE With boiler still set at minimum rate insert analyser probe into flue gas sampling...

Page 45: ...ective output range P at 80 60 C 5 0 18 3 kW 6 1 25 4 kW 7 2 25 6 kW Domestic hot water heat output P 5 0 25 2 kW 6 0 30 0 kW 7 1 35 0 kW Maximum heat input heating Q max 18 4 kW 25 5 kW 25 7 kW Minim...

Page 46: ...mperature 80 C 60 C at P min 55 55 56 Flue gas temperature 50 C 30 C at P max 51 62 56 Flue gas temperature 50 C 30 C at P min 34 35 37 Flue gas temperature in hot water handling mode 69 68 75 Flue ga...

Page 47: ...Gas connection value 17 Gas family check 15 H Handing over to the operator 21 High efficiency pump 20 High efficiency pump output 20 I Identification plate 7 If you smell gas 4 Inspection work 25 38...

Page 48: ...e DE56 1JT Telephone 0330 100 3461 info vaillant co uk www vaillant co uk These instructions or parts thereof are protected by copyright and may be reproduced or distributed only with the manufacturer...

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