Contents
Design principles & operating sequence
Page
1.1
Principle components
2
1.2
Mode of operation
2
1.3
Safety devices
2
Technical data
Page
2.1
Performance
3
2.2
Gas pressure
3
2.3
Expansion vessel
3
2.4
Dimensions
3
2.5
Clearances
3
2.6
Connections
3
2.7
Electrical
3
2.8
Flue details
3
2.9
Efficiency
3
2.10 Pump duty
3
General requirements (UK)
Page
3.1
Related documents
4
3.2
Location of appliance
4
3.3
Gas supply
5
3.4
Flue system
5
3.5
Air supply
5
3.6
Water circulation
5
3.7
Electrical supply
6
3.8
Mounting on a combustible surface
6
3.9
Timber framed buildings
6
3.10 Condensate disposal
6
3.11 Inhibitors
6
General requirements (EIRE)
Page
3A.1 Related documents
6
3A.2 Location of appliance
6
3A.3 Gas supply
7
3A.4 Flue system
7
3A.5 Air supply
7
3A.6 Water circulation
7
3A.7 Electrical supply
8
3A.8 Mounting on a combustible surface
8
3A.9 Timber framed buildings
8
3A.10 Condensate disposal
8
3A.11 Inhibitors
8
3A.12 Declaration of conformity
8
Installation
Page
4.1
Delivery
8
4.2
Contents
8
4.3
Unpacking
8
4.4
Preparation for mounting the appliance
8
4.5
Fitting the flue
9
4.6
Connecting the gas & water
13
4.7
Electrical connections
13
Commissioning
Page
5.1
Gas supply installation
14
5.2
The heating system
14
5.3
Initial filling of the system
14
5.4
Initial flushing
14
5.5
Pre-operation checks
14
5.6
Initial lighting
14
5.7
Checking the burner pressure
15
5.8
Final flushing of the heating system
15
5.9
Setting the boiler operating temperature
15
5.10 Setting the system design pressure
15
5.11 Regulating the central heating system
15
5.12 Final checks
15
5.13 Instructing the user
15
Servicing
Page
6.1
General
16
6.2
Routine annual servicing
16
6.3
Replacement of components
16
6.4
Component removal procedure
16
6.5
Pump head
16
6.6
Safety valve
16
6.7
Automatic air release valve
17
6.8
Water pressure switch
17
6.9
Pressure gauge
17
6.10 NTC thermistors
17
6.11 High limit thermostat
17
6.12 Printed circuit board (PCB)
17
6.13 Gas valve
17
6.14 Integral time switch
17
6.15 Burner, injectors and spark/sense electrode
17
6.16 Flue fan
18
6.17 Heat exchanger
18
6.18 Air pressure switch
18
6.19 Expansion vessel
18
Checks, adjustments, and fault finding
Page
7.1
Checking appliance operation
20
7.2
Appliance mode of operation
20
7.3
Checking/adjusting burner pressure
20
7.4
Combustion analysis test
20
7.5
Checking the expansion vessel
21
7.6
External faults
21
7.7
Electrical checks
21
7.8
Fault finding
22
7.9
Fault codes
22
Wiring diagrams
Page
8.1
External wiring
27
8.2
Installation of Vokera twin channel programmer
27
8.3
Installation of Vokera time clock
27
Exploded diagrams
Page
9.1
Table 1
34
9.2
Table 2
35
9.3
Table 3
36
9.4
Table 4
37
9.5
Table 5
38
L.P.G. instructions
Page
10.1 Technical data
39
10.2 Related documents
39
10.3 Gas supply
39
10.4 Gas supply installation
39
10.5 Checking/Adjusting the burner pressure
39