37
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
6
2.2
Appliance controls
6
2.3
Lighting the boiler
6
2.4
Adjusting the heating temperature
6
2.5
Adjusting the hot water temperature
6
2.6
Explanation of features
6
2.7
Automatic temperature control
6
How to...
Page
3.1
How to top-up the system pressure
6
3.2
How to reset the appliance
6
3.3
How to shut down the system for short periods
6
3.4
How to shut down the system for long periods
6
3.5
How to care for the appliance
6
What if...
Page
4.1
What if I suspect a gas leak
7
4.2
What if I have frequently top-up the system
7
4.3
What if the appliance is due its annual service
7
4.4
What if I need to call an engineer
7
Installation and Servicing instructions
Design principles & operating sequence
Page
1.1
Principle components
9
1.2 Mode of operation (at rest)
9
1.3 Mode of operation (heating)
9
1.4
Mode of operation (Hot water)
9
1.5 Safety devices
9
Technical data
Page
2.1 Central heating
10
2.2
Domestic hot water
10
2.3
Gas pressures
10
2.4 Expansion vessel
10
2.5 Dimensions
10
2.6 Clearances
10
2.7 Connections
10
2.8 Electrical
10
2.9
Flue details (concentric 60-100)
10
2.9A Flue details (concentric 80-125)
10
2.9B Flue details (twin pipes)
10
2.10 Efficiency
11
2.11 Emissions
11
2.12 Pump duty
11
General requirements (UK)
Page
3.1 Related documents
12
3.2 Location of appliance
12
3.3 Gas supply
12
3.4 Flue system
12
3.5 Air supply
12
3.6 Water circulation
12
3.7 Electrical supply
13
3.8
Mounting on a combustible surface
13
3.9 Timber framed buildings
13
3.10 Inhibitors
13
3.11 Showers
13
General requirements (EIRE)
Page
3A.1 Related documents
13
3A.2 Location of appliance
13
3A.3 Gas supply
13
3A.4 Flue system
13
3A.5 Air supply
14
3A.6 Water circulation
14
3A.7 Electrical supply
14
3A.8 Mounting on a combustible surface
14
3A.9 Timber framed buildings
14
3A.10 Inhibitors
14
3A.11 Showers
14
3A.12 Declaration of conformity
14
Installation Page
4.1 Delivery
15
4.2 Contents
15
4.3 Unpacking
15
4.4 Preparation for mounting the appliance
15
4.5
Fitting the flue
15
4.6 Connecting the gas & water
19
4.7
Electrical connections
19
Commissioning
Page
5.1
Gas supply installation
20
5.2 The heating system
20
5.3
Initial filling of the system
20
5.4 Initial flushing of the system
20
5.5 Pre-operation checks
20
5.6 Initial lighting
20
5.7
Checking gas pressure & combustion analysis
20
5.8 Final flushing of the heating system
20
5.9
Setting the boiler operating temperature
20
5.10 Setting the system design pressure
20
5.11 Regulating the central heating system
21
5.12 Final checks
21
5.13 Instructing the user
21
Servicing
Page
6.1 General
21
6.2 Routine annual servicing
21
6.3
Replacement of components
21
6.4
Component removal procedure
21
6.5
Pump assembly
22
6.6
Safety valve
22
6.7
Lower automatic air release valves
22
6.8 Water pressure switch
22
6.9 Flow thermistor
22
6.10 Return thermistor
22
6.11 Printed circuit board
22
6.12 Gas valve
23
6.13 Electrodes
23
6.14 Flue fan & mixer
23
6.15 Burner
23
6.16 Main heat exchanger
24
6.17 Automatic by-pass & DHW non-return valve
24
6.18 Expansion vessel removal
24
6.19 Condense trap removal
24
6.20 Flue collector removal
25
Checks, adjustments and fault finding
Page
7.1 Checking appliance operation
26
7.2 Appliance modes of operation
26
7.3 Checking the CO
2
& adjusting the valve
26
7.4 Combustion analysis test
27
7.5 Checking the expansion vessel
27
7.6
External faults
27
7.7 Electrical checks
27
7.8
Fault finding
28
7.9
Component values & characteristics
28
7.10 Adjustments
29
Wiring diagrams
Page
8.1
External wiring
31
8.2
Other devices
31
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
Содержание Vision 25C
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