Manual Vokèra Compact 24 SE Central Heating Boiler

Manual

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 Adjusting the hot water temperature 3

2.6 Explanation of features 3

2.7 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

Setting the Vokèra Page

5.1 Setting the Vokèra mechanical clock 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 Mode of operation (Hot water) 6

1.5 Safety devices 6

Technical data Page

2.1 Central heating 7

2.2 Domestic hot water 7

2.3 Gas pressures 7

2.4 Expansion vessel 7

2.5 Dimensions 7

2.6 Clearances 7

2.7 Connections 7

2.8 Electrical 7

2.9 Flue details (concentric) 7

2.9A Flue details (twin pipes) 7

2.9B Flue details (80/125) 7

2.10 Efficiency 7

2.11 Emissions 7

2.12 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

3.11 Showers 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 Showers 11

3A.12 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 15

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 20

6.15 Burner 20

6.16 Main heat exchanger 21

6.17 Automatic by-pass 21

6.18 Expansion vessel removal 21

Checks, adjustments and fault finding Page

7.1 Checking appliance operation 23

7.2 Appliance modes of operation 23

7.3 Checking the CO

2

& adjusting the valve 23

7.4 Combustion analysis test 24

7.5 Checking the expansion vessel 24

7.6 External faults 24

7.7 Electrical checks 24

7.8 Fault finding 25

7.9 Component values & characteristics 25

Wiring diagrams Page

8.1 External wiring 26

8.2 Typical control applications 26

8.3 Other devices 26

Exploded diagrams Page

9.1 Table 1 28

9.2 Table 2 29

9.3 Table 3 30

9.4 Table 4 31

9.5 Table 5 32

L.P.G. instructions Page

10.1 Related documents 33

10.2 Technical data 33

10.3 Converting the appliance gas type 33

10.4 Gas supply 33

10.5 Gas supply installation 33

10.6 Checking the CO

2

and adjusting the gas valve 33

Benchmark 35-36

Rating

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