Supplied By www.heating spares.co Tel. 0161 620 6677
Contents
Design principles & operating sequence
Page
1.1
Principle components
2
1.2
Mode of operation (at rest)
2
1.3
Domestic hot water mode
2
1.4
Central heating mode
2
1.5
Safety devices
2
Technical data
Page
2.1
Central heating
3
2.2
Domestic hot water
3
2.3
Gas pressure
3
2.4
Expansion vessel
3
2.5
Dimensions
3
2.6
Clearances
3
2.7
Connections
3
2.8
Electrical
3
2.9
Flue details
3
2.10 Efficiency
3
2.11 Parameter defaults
4
2.12 Emissions
4
2.13 Pump duty
4
General requirements
Page
3.1
Related documents
5
3.2
Location of appliance
5
3.3
Gas supply
5
3.4
Flue system
5
3.5
Air supply
6
3.6
Water circulation
6
3.7
Electrical supply
7
3.8
Showers
7
3.9
Mounting on a combustible surface
7
3.10 Timber framed buildings
7
3.11 Condensate disposal
7
3.12 Inhibitors
7
Installation
Page
4.1
Delivery
7
4.2
Contents
7
4.3
Unpacking
7
4.4
Preparation for mounting the appliance
7
4.5
Fitting the flue
8
4.6
Connecting the gas & water
11
4.7
Condensate outlet
12
4.8
Electrical connections
12
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 of the system
14
5.5
Filling the hot water system
14
5.6
Pre-operation checks
14
5.7
Initial lighting
14
5.8
Final flushing of the heating system
14
5.9
Operating parameters
14
5.10 Functional parameters
15
5.11 Range rating
15
5.12 Setting the system design pressure
15
5.13 Regulating the central heating system
16
5.14 Final checks
16
5.15 Instructing the user
16
Servicing
Page
6.1
General
17
6.2
Routine annual servicing
17
6.3
Replacement of components
17
6.4
Component removal procedure
17
6.5
Pump head removal
17
6.6
Safety valve removal
17
6.7
Automatic air valve removal
17
6.8
Pressure gauge removal
18
6.9
Temperature sensor removal
18
6.10 Main PCB removal
18
6.11 Gas valve removal
18
6.12 Fan removal
19
6.13 Burner removal
19
6.14 Electrode removal
19
6.15 Injector removal
19
6.16 DHW heat exchanger removal
20
6.17 Motorised valve actuator removal
20
6.18 Divertor valve assembly removal
20
6.19 Condense trap removal
20
6.20 Condense pressure switch removal
20
6.21 Combustion cover removal
20
6.22 Expansion vessel removal
21
6.23 Input & status PCB removal
21
Checks, adjustments, and fault finding
Page
7.1
Checking appliance operation
22
7.2
Mode of operation
22
7.3
Checking/adjusting fan speeds
22
7.4
Adjusting the gas valve
23
7.5
Status code
24
7.6
Lockout faults codes
25
7.7
Diagnostic recall
25
7.8
Temperature sensor viewing mode
26
7.9
Checking the expansion vessel
26
7.10 External faults (installation)
26
7.11 Electrical checks
26
7.12 Fault finding
27
Wiring diagrams
Page
8.1
Important note
31
8.2
Installation of Vokera time clock
31
8.3
External controls
31
Exploded diagrams
Page
9.1
Table 1
35
9.2
Table 2
36
9.3
Table 3
37
9.4
Table 4
38
9.5
Table 5
39
9.6
Table 6
40
L.P.G. instructions
Page
10.1 Technical data
41
10.2 Related documents
41
10.3 Gas supply
41
10.4 Gas supply installation
41
10.5 Adjusting the gas valve
41
10.6 Range rating
41