6 720 611 400 GB (03.11)
Contents
2
Contents
Safety precautions
3
Symbols 3
1
Details of the appliance
4
1.1
EC Declaration of Conformity
4
1.2
Standard package
4
1.3
Description of appliance
4
1.4
Accessories 5
1.5
Casing dimensions
5
1.6
Layout of appliance
6
1.7
Function 7
1.8
Electrical wiring diagram
8
1.9
Technical data
9
2
Installation regulations
10
3
Installation 11
3.1
Important remarks
11
3.2
Domestic hot water
11
3.3
Sealed systems
11
3.4
Siting the appliance
12
3.5
Wall mounting frame assembly
13
3.6
Pre-piping the system
13
3.7
Fitting the appliance
14
3.8
Checking the connections
15
3.9
Flue Systems
15
3.9.1 Siting the Flue Terminal
16
3.9.2 Installation of the flue
17
3.9.3 Flue duct preparation and assembly
19
4
Electrical connections
20
4.1
Connecting the appliance
20
4.2
Connecting TR2 Room thermostat
21
4.3
Mains Voltage external controls connections
21
5
Commissioning 22
5.1
Commissioning 22
5.2
Switching the appliance on/off
23
5.3
Switching on the central heating
23
5.4
System controls
23
5.5
Setting the domestic hot water temperature and flow
rate 24
5.5.1 Domestic hot water temperature
24
5.5.2 Hot water flow rate
24
5.6
Summer mode (hot water only)
24
5.7
Frost protection
24
5.8
Pump anti-seize function
24
5.9
Fault Condition
25
6
Text Display
26
6.1
General Description
26
6.2
Programming 26
6.2.1 Deleting a setting
27
6.2.2 Resetting all parameters to their original settings 27
6.3
Menu structure
27
6.4
Setting the time/day
28
6.4.1 Setting the time and day
28
6.4.2 Holidays 28
6.5
Heating 28
6.5.1 Heating programme
28
6.5.2 Setting Economy temperature (TR2 connected) 28
6.5.3 Manual operating mode (TR2 not connected)
29
6.6
Hot water
29
6.6.1 Hot water programme
29
6.6.2 Hot water immediately
29
6.7
i Info
29
6.8
Settings 30
6.8.1 Heating (if TR 2 is connected)
30
6.8.2 Hot Water (Storage Tank, system models only) 30
6.8.3 Service 30
6.9
Individual timer programmes
30
7
Individual settings
31
7.1
Mechanical settings
31
7.1.1 Checking the size of the expansion vessel
31
7.1.2 Setting the central heating flow temperature
31
7.2
Settings on the Bosch Heatronic
31
7.2.1 General description
31
7.2.2 Setting the anti-cycle time
(Service Function 2.4)
32
7.2.3 Setting the maximum CH flow temperature (Service
Function 2.5)
32
7.2.4 Setting the heating output
(Service Function 5.0)
32
7.2.5 Constant hot water cycle time
(Service Function 6.8)
32
7.2.6 Variable pump settings
(Service Function 7.0)
32
7.3
Setting the gas/air ratio
32
8
Converting the appliance to different
gas types 33
8.1
Setting the gas/air ratio
33
8.2
Testing combustion air/flue gas at set heat output 35
8.2.1 Testing the O2 or CO2 level in the combustion air 35
8.2.2 Testing CO and CO2
35
9
Maintenance 36
9.1
Pre-Service Check List
37
9.2
Description of servicing operations
38
9.3
Replacement of Parts
41
9.3.1 PCB control board and transformer
41
9.3.2 Fan Assembly
42
9.3.3 Pump 42
9.3.4 3-way diverter valve
43
9.3.5 3-way diverter valve motor
43
9.3.6 Sensors 43
9.3.7 Gas Valve
44
9.3.8 Domestic Hot Water Heat Exchanger
44
9.3.9 Electrode assembly
44
9.3.10 Pressure gauge
44
9.3.11 Expansion vessel
44
9.3.12 Pressure Relief Valve
44
9.3.13 Burner 44
9.3.14 Flow switch
45
9.3.15 Primary Heat Exchanger
45
10
Appendix 46
10.1
Fault Codes
46
10.2
Short parts list
47
10.3
Heating/hot water output settings R 30 HE N.G. 48
10.4
Heating/hot water output settings R 30 HE L.P.G 48
10.5
Heating/hot water output settings R 35 HE N.G. 48
10.6
Heating/hot water output settings R 35 HE L.P.G 48
10.7
Operational Flow diagrams
49
10.7.1 Domestic hot water function
49
10.7.2 Central heating function 50
10.7.2Central heating
function 50