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Users instructions

  Things you should know 

Page

 

1.1 

Gas appliances 

1

  1.2 

Electrical supply 

1

  1.3 

Guarantee registration card 

1

  1.4 

Appliance Log Book (UK only) 

1

  1.5 

How does it work? 

1

 1.6  Dimensions 

1

  1.7 

Clearances required 

1

  1.8 

Frost protection system 

1

  1.9 

Appliance status indicators 

1

  Getting started 

Page

 

2.1 

Before switching ON 

3

  2.2 

Appliance controls 

3

  2.3 

Lighting the boiler 

3

  2.4 

Adjusting the heating temperature 

3

  2.5 

Explanation of features 

3

  2.6 

Automatic temperature control 

3

 

How to... 

Page

 

3.1 

How to top-up the system pressure 

3

  3.2 

How to reset the appliance 

3

  3.3 

How to shut down the system for short periods 

3

  3.4 

How to shut down the system for long periods 

3

  3.5 

How to care for the appliance 

3

 

What if... 

Page

 

4.1 

What if I suspect a gas leak 

4

  4.2 

What if I have frequently top-up the system 

4

  4.3 

What if the appliance is due its annual service 

4

  4.4 

What if I need to call an engineer 

4

 

Installation and Servicing instructions

  Design principles & operating sequence 

Page 

  1.1 

Principle components 

6

  1.2  

Mode of operation (at rest) 

6

  1.3  

Mode of operation (heating) 

6

  1.4  

Safety devices 

6

 

Technical data 

Page

  2.1  

Central heating 

7

  2.2 

Gas pressures 

7

  2.3  

Expansion vessel 

7

 2.4  Dimensions 

7

 2.5  Clearances 

7

 2.6  Connections 

7

  2.7  

Electrical 

7

  2.8 

Flue details (concentric) 

7

  2.8A  Flue details (twin pipes) 

7

  2.9 

Efficiency 

7

 2.10  Emissions 

7

  2.11  Pump duty 

8

 

General requirements (UK) 

Page

 

  3.1   Related documents 

9

  3.2  

Location of appliance 

9

  3.3  

Gas supply 

9

  3.4  

Flue system 

9

  3.5  

Air supply 

9

  3.6  

Water circulation 

9

  3.7  

Electrical supply 

10

  3.8 

Mounting on a combustible surface 

10

  3.9  

Timber framed buildings 

10

 3.10  Inhibitors 

10

 

General requirements (EIRE) 

Page

 

  3A.1   Related documents 

10

  3A.2   Location of appliance 

10

  3A.3   Gas supply 

10

  3A.4   Flue system 

10

  3A.5   Air supply 

11

  3A.6   Water circulation 

11

  3A.7   Electrical supply 

11

  3A.8  Mounting on a combustible surface 

11

  3A.9   Timber framed buildings 

11

  3A.10   Inhibitors 

11

  3A.11  Declaration of conformity 

11

 

Installation Page

  4.1  

Delivery 

12

  4.2  

Contents 

12

  4.3   Unpacking 

12

  4.4  

Preparation for mounting the appliance  

12

  4.5 

Fitting the flue 

12

  4.6  

Connecting the gas & water 

16

  4.7 

Electrical connections 

16

 

  Commissioning 

   Page 

  5.1 

Gas supply installation 

17

  5.2  

The heating system 

17

  5.3 

Initial filling of the system 

17

  5.4   Initial flushing of the system 

17

  5.5  

Pre-operation checks  

17

  5.6  

Initial lighting 

17

  5.7 

Checking gas pressure & combustion analysis 

17

  5.8   Final flushing of the heating system 

17

  5.9 

Setting the boiler operating temperature 

17

  5.10   Setting the system design pressure 

17

  5.11   Regulating the central heating system 

18

  5.12   Final checks 

18

  5.13   Instructing the user 

18

   

Servicing  

        Page

 6.1  General 

18

  6.2   Routine annual servicing 

18

  6.3 

Replacement of components 

18

  6.4 

Component removal procedure 

18

  6.5 

Pump assembly 

19

  6.6 

Safety valve 

19

  6.7 

Lower automatic air release valves 

19

  6.8  

Water pressure switch 

19

  6.9  

Flow thermistor 

19

  6.10  Return thermistor 

19

  6.11   Printed circuit board 

19

  6.12  Gas valve 

20

  6.13  Electrodes  

20

  6.14   Flue fan & mixer 

20

  6.15   Burner 

20

  6.16  Main heat exchanger 

21

  6.17  Automatic by-pass  

21

  6.18   Expansion vessel removal 

21

  6.19   Condense trap removal 

21

  6.20  Flue collector removal 

22

 

  Checks, adjustments and fault finding  

Page

  7.1  

Checking appliance operation 

22

  7.2  

Appliance modes of operation 

22

  7.3  

Checking the CO

2

 & adjusting the valve 

23

  7.4  

Combustion analysis test 

23

  7.5  

Checking the expansion vessel 

23

  7.6 

External faults  

24

  7.7  

Electrical checks 

24

  7.8 

Fault finding 

24

  7.9 

Component values & characteristics 

24

 
 

Wiring diagrams 

Page

  8.1 

External wiring 

25

  8.2 

Typical control applications 

25

  8.3 

Other devices 

25

  L.P.G. instructions 

Page

  9.1 

Related documents  

27

  9.2  

Technical data 

27

  9.3 

Converting the appliance gas type 

27

  9.4 

Gas supply 

27

  9.5 

Gas supply installation 

27

  9.6 

Checking the CO

2

 and adjusting the gas valve 

27

  

Commissioning checklist

 28

    

Benchmark

 

30-31  

Summary of Contents for Vibe 20 A G.C. N 41-094-84

Page 1: ...NS TO BE RETAINED BY USER Vok ra is a licensed member of the Benchmark scheme which aims to improve the standards of installation and commissioning of domestic hot water systems in the UK Vibe High ef...

Page 2: ...8 Mounting on a combustible surface 11 3A 9 Timber framed buildings 11 3A 10 Inhibitors 11 3A 11 Declaration of conformity 11 Installation Page 4 1 Delivery 12 4 2 Contents 12 4 3 Unpacking 12 4 4 Pr...

Page 3: ...er has been designed to meet and exceed the very latest standards in gas central heating technology and if cared for will give years of reliable use and efficiency Please therefore take some time to r...

Page 4: ...ating temperature selector move the selector clockwise to increase the heating outlet temperature or counter clockwise to reduce the tem perature range 40 C 80 C for standard central heating The autom...

Page 5: ...t simultaneously 2 6 AUTOMATIC TEMPERATURE CONTROL The automatic temperature control function SARA permits the boiler when the heating temperature selector is set within 4 and 6 sector to automaticall...

Page 6: ...I NEED TO CALL AN ENGINEER Ifyouthinkyourboilermayhavedevelopedafault pleasecontact yourinstallerorVok raCustomerServices 08443910999 UK or 056 7755057 ROI have all your details to hand including ful...

Page 7: ...e ap plications These appliances are designed for use with a sealed system only consequently they are not intended for use on open vented systems This booklet is an integral part of the appliance It i...

Page 8: ...bytheelectroniccircuittoensureflamestability at the burner Once successful ignition has been achieved the electronic circuitry increases the gas rate to 75 for a period of 15minutes Thereafter theboil...

Page 9: ...Dry weight kg 26 28 2 5 Clearances Vibe 20A Vibe 25A Sides 12mm Top 150mm from casing or 25mm above flue elbow whichever is applicable Bottom 150mm Front 600mm 2 6 Connections Vibe 20A Vibe 25A Flow...

Page 10: ...wall 300 mm P From a structure to the side of the vertical terminal 300 mm Q From the top of the vertical terminal to the roof flashing As determined by the fixed collar of the vertical terminal R To...

Page 11: ...an unusually high water content it may be necessary to provide additional expansion capacity see 6 18 3 6 6 FILLING POINT A method for initial filling of the system and replacing water lost during ser...

Page 12: ...is no requirement for a sheet of fireproof material to protect the wall 3 9 TIMBER FRAMED BUILDINGS If the appliance is to be fitted in a timber framed building it shouldbefittedinaccordancewiththeIns...

Page 13: ...omplies with the local water authority regulations 3A 6 7 LOW PRESSURE SEALED SYSTEM An alternative method of filling the system would be from an independent make up vessel or tank mounted in a positi...

Page 14: ...e see 2 9 Areduction must also be made to the maximum length see table below when additional bends are used Reduction for additional bends Bend Reduction in maximum flue length for each bend 45 bend 1...

Page 15: ...ING THE REAR FLUE fig 14 rear flue outlet only Using the template provided mark and drill a 125mm hole for the passage of the flue pipe The hole should be drilled LEVEL to ensure any condense fluid th...

Page 16: ...rminal 1 0 metre 359 Twin adapter kit N A 531 Pitched roof flashing plate N A 532 Flat roof flashing plate N A 0225815 Condensate drain kit N A 0225820 0 25m extension pair 50mm 0225825 0 5m extension...

Page 17: ...iance flue outlet Remove the blanking plate located to the left of the appliance flue outlet and using the same screws install the air inlet plate B Using the hole in the exhaust connection manifold a...

Page 18: ...e wire to NEUTRAL supply green yellow to EARTH connection Insertthesupplied3 AMPfuseintothefusedisolatororfusedplug Should the fly lead be unsuitable refer to 4 7 3 for details on how to connect the e...

Page 19: ...nce service valves are open 5 6 INITIAL LIGHTING Ensure the electrical supply to the appliance is switched on Ensure any external controls are switched to an ON position and are calling for heat Move...

Page 20: ...ilure to install and com mission the appliance to the manufacturers instructions will invalidate the warranty 5 13 INSTRUCTING THE USER Hand over all documentation supplied with this appliance includi...

Page 21: ...from the pump assembly and remove the AAV assembly J Replace in the reverse order 6 7 1 TOP AUTOMATIC AIR RELEASE VALVE fig 29 Carry out component removal procedure as described in 6 4 Remove the AAV...

Page 22: ...tly ease the fan assembly out of its location Once the assembly has been removed the burner K1 can be withdrawn from the heat engine Ensure the seals L1 is in good condition taking care to ensure it i...

Page 23: ...s described in 6 4 Remove the locking pin Q1 that secures the cover R1 to the hydraulic manifold Using a hooked piece of wire carefully withdraw the by pass cartridge S1 Ensure all seals are in good c...

Page 24: ...the ignition sequence com mences Ignition is sensed by the electronic circuit to ensure flame stability at the burner Once successful ignition has been achieved the electronic circuitry increases the...

Page 25: ...it the plug fig 40 L2 and move the mode selector through position Remove the test probe from the test point and refit the sealing screw s and or cap IMPORTANT A GAS TIGHTNESS CHECK MUST BE CARRIED OUT...

Page 26: ...as failed but no fault is in dicated a detailed continuity check will be required to trace the fault A visual inspection of components may also assist in locating the fault 7 7 3 POLARITY CHECK With t...

Page 27: ...LICATIONS The appliance can be used with the following controls twin channel programmers The appliance can be used in conjunction with typical S Plan systems and Y Plan systems Please contact Vokera t...

Page 28: ...sed JP5 Selection operating only heating JP6 Unused JP7 Unused JP8 Closed Unused LED Led 1 green working status or temporary stop Led 2 yellow CO 2 function ON Led 3 red boiler lock out brown CN3 blue...

Page 29: ...INSTALLATION The entire installation including the meter must be purged and checked for gas tightness 9 6 2 GAS VALVE MAXIMUM SETTING Set the CO button at maximum see 10 3 1 once the maximum is obtai...

Page 30: ...TO MINIMUM RATE In accordance with section 7 3 set boiler to operate at minimum rate to minimum load condition Allow sufficient time for combustion to stabilise YES Is CO 350ppm and CO CO2 ratio less...

Page 31: ...commissioning checklist completed in full To instigate the boiler guarantee the boiler needs to be registered with the manufacturer within one month of the installation To maintain the boiler guarante...

Page 32: ...nterlock Provided ALL SYSTEMS The system has been flushed and cleaned in accordance with BS7593 and boiler manufacturer s instructions Yes What system cleaner was used What inhibitor was used Quantity...

Page 33: ...egister No Record At max rate CO ppm AND CO At min rate Where Possible CO ppm AND CO Comments Signature SERVICE 04 Date Engineer name Company name Telephone No Gas safe register No Record At max rate...

Page 34: ...33...

Page 35: ...34...

Page 36: ...1HG enquiries vokera co uk www vokera co uk www vokera ie Sales General Enquires T 0844 391 0999 F 0844 391 0998 Vok ra Ireland West Court Callan Co Kilkenny T 056 7755057 F 056 7755060 Vok ra Limite...

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