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VOKERA
Boiler
Excel 29
VOKERA Excel 29 User Manual
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31
33
Table of Contents
Default Chapter
2
Table of Contents
2
Users Instructions
3
Things You Should Know Page
3
Gas Appliances
3
Electrical Supply
3
Guarantee Registration Card
3
Appliance Log Book (UK Only)
3
How Does It Work
3
Dimensions
3
Clearances Required
3
Frost Protection System
3
Controls Overview
4
Pressure Gauge
4
Getting Started Page
5
Before Switching on
5
Appliance Controls
5
Lighting the Boiler
5
Adjusting the Heating Temperature
5
Adjusting the Hot Water Temperature
5
Explanation of Features
5
Automatic Temperature Control
5
How to
5
How to Top-Up the System Pressure
5
Appliance Status Led and Fault Codes
6
What if
6
What if I Suspect a Gas Leak
6
What if I Have Frequently Top-Up the System
6
What if the Appliance Is Due Its Annual Service
6
What if I Need to Call an Engineer
6
Setting the Vokèra Page
6
Setting Vokèra
6
Setting the Vokèra Mechanical Clock
6
Installation and Servicing Instructions
7
Design Principles & Operating Sequence
8
Principle Components
8
Mode of Operation (at Rest)
8
Mode of Operation (Heating)
8
Mode of Operation (Hot Water)
8
Safety Devices
8
Technical Data
9
Central Heating
9
Domestic Hot Water
9
Gas Pressures
9
Expansion Vessel
9
Dimensions
9
Clearances
9
Connections
9
Electrical
9
Flue Details (Concentric)
9
A Flue Details (Twin Pipes)
9
Pump Duty
10
General Requirements (UK)
11
Related Documents
11
Location of Appliance
11
Gas Supply
11
Flue System
11
Air Supply
11
Water Circulation
11
General Requirements (EIRE)
12
Electrical Supply
12
Mounting on a Combustible Surface
12
Timber Framed Buildings
12
Inhibitors
12
Showers
12
Related Documents
12
Location of Appliance
12
Gas Supply
12
Flue System
12
Air Supply
13
Water Circulation
13
Electrical Supply
13
Mounting on a Combustible Surface
13
Timber Framed Buildings
13
10 Inhibitors
13
11 Showers
13
12 Declaration of Conformity
13
Delivery
14
Contents
14
Unpacking
14
Preparation for Mounting the Appliance
14
Fitting the Flue
14
Connecting the Gas & Water
17
Electrical Connections
18
Commissioning
19
Gas Supply Installation
19
The Heating System
19
Initial Filling of the System
19
Initial Flushing of the System
19
Pre-Operation Checks
19
Initial Lighting
19
Checking Gas Pressure & Combustion Analysis
19
Final Flushing of the Heating System
19
Setting the Boiler Operating Temperature
19
Setting the System Design Pressure
19
Regulating the Central Heating System
20
Final Checks
20
Instructing the User
20
General
20
Routine Annual Servicing
20
Replacement of Components
20
Component Removal Procedure
21
Pump Assembly
21
Safety Valve
21
Lower Automatic Air Release Valves
21
Water Pressure Switch
21
Flow Thermistor
21
Return Thermistor
21
Printed Circuit Board
21
Gas Valve
22
Electrodes
22
Flue Fan & Mixer
22
Burner
22
Main Heat Exchanger
23
Automatic By-Pass & DHW Non-Return Valve
23
Expansion Vessel Removal
23
Condense Trap Removal
23
Flue Collector Removal
24
Checks, Adjustments and Fault Finding
25
Checking Appliance Operation
25
Appliance Modes of Operation
25
Checking the CO
25
Adjusting the Valve
25
Checks, Adjustments and Fault Finding
25
Combustion Analysis Test
26
Checking the Expansion Vessel
26
Co2 Function Settings
26
Gas Valve Maximum/Minimum Setting
26
External Faults
26
Electrical Checks
26
Fault Finding
27
Component Values & Characteristics
27
External Wiring
28
Wiring Diagrams
28
Typical Control Applications
28
Other Devices
28
Vokèra Lower Cover Mechanical Clock
28
Functional Diagram
29
L.P.G. Instructions
30
Related Documents
30
Technical Data
30
Converting the Appliance Gas Type
30
Gas Supply
30
Gas Supply Installation
30
Checking the CO 2 and Adjusting the Gas Valve
30
Benchmark
32
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VOKERA Excel 29 Specifications
General
ERP Rating
A
Boiler Type
Combination
Output (kW)
29 kW
Mounting
Wall Mounted
DHW Output (kW)
29 kW
Operating Pressure
0.5 - 3 bar
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