Contents
Design principles & operating sequence
Page
1.1
Principle components
3
1.2
Mode of operation (at rest)
3
1.3
Mode of operation
3
1.4
Safety devices
3
Technical data
Page
2.1
Central heating
4
2.2
Gas pressures
4
2.3
Dimensions
4
2.4
Clearances
4
2.5
Connections
4
2.6
Electrical
4
2.7
Flue details (concentric)
4
2.7A Flue details (twin pipes)
4
2.7B Flue details (80/125)
4
2.8
Efficiency
4
2.9
Emissions
4
General requirements (UK)
Page
3.1
Related documents
6
3.2
Location of appliance
6
3.3
Gas supply
6
3.4
Flue system
6
3.5
Air supply
6
3.6
Water circulation
6
3.7
Electrical supply
7
3.8
Mounting on a combustible surface
7
3.9
Timber framed buildings
7
3.10 Inhibitors
7
3.11 Appliance pipework configuration
7
General requirements (EIRE)
Page
3A.1 Related documents
8
3A.2 Location of appliance
8
3A.3 Gas supply
8
3A.4 Flue system
8
3A.5 Air supply
8
3A.6 Water circulation
8
3A.7 Electrical supply
9
3A.8 Mounting on a combustible surface
9
3A.9 Timber framed buildings
9
3A.10 Inhibitors
9
3A.11 Appliance pipework configuration
10
3A.12 Declaration of conformity
10
Installation
Page
4.1
Delivery
11
4.2
Contents
11
4.3
Unpacking
11
4.4
Preparation for mounting the appliance
11
4.5
Fitting the flue
11
4.6
Connecting the gas & water
15
4.7
Electrical connections
15
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
18
5.10 Setting the system design pressure
18
5.11 Final checks
18
5.12 Instructing the user
18
Servicing
Page
6.1
General
19
6.2
Routine annual servicing
19
6.3
Replacement of components
19
6.4
Component removal procedure
19
6.5
Automatic air release valve
19
6.6
Primary thermistor
19
6.7
Return thermistor
19
6.8
Printed circuit board
19
6.9
Gas valve
20
6.10 Injectors
20
6.11 Electrodes and condense sensor
20
6.12 Flue fan & mixer
20
6.13 Burner
20
6.14 Main heat exchanger
21
6.15 Condense trap removal
21
6.16 Flue collector removal
21
Checks, adjustments and fault finding
Page
7.1
Checking appliance operation
22
7.2
Appliance modes of operation
22
7.3
Appliance fan speeds
23
7.4
Checking the CO
2
& adjusting the valve
23
7.5
Combustion analysis test
24
7.6
External faults
24
7.7
Electrical checks
24
7.8
Fault finding
24
7.9
Component values & characteristics
24
7.10 Fault codes
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
29
9.2
Table 2
30
9.3
Table 3
31
9.4
Table 4
32
9.5
Table 5
33
L.P.G. instructions
Page
10.1 Related documents
34
10.2 Technical data
34
10.3 Converting the appliance gas type
34
10.4 Gas supply
34
10.5 Gas supply installation
34
10.6 Adjusting the gas valve
34
10.7 Appliance fan speeds
35
Benchmark
36-37