Contents
2 Installation and maintenance instructions HOME 0020224355_00
Contents
1 Safety .................................................................... 4
1.1 Action-related warnings ......................................... 4
1.2 Risk caused by inadequate qualifications.............. 4
1.3 Intended use ......................................................... 4
1.4 General safety information .................................... 4
1.5 Regulations (directives, laws, standards) .............. 6
2 Notes on the documentation .............................. 7
2.1 Observing other applicable documents ................. 7
2.2 Storing documents................................................. 7
2.3 Applicability of the instructions .............................. 7
3 Product description............................................. 7
3.1 Serial number ........................................................ 7
3.2 Information on the identification plate.................... 7
3.3 Functional elements: Combination unit ................. 8
3.4 CE label ................................................................. 8
4 Installation............................................................ 8
4.1 Transporting the unit.............................................. 8
4.2 Unpacking the product........................................... 8
4.3 Checking the scope of delivery.............................. 8
4.4 Dimensions............................................................ 9
4.5 Minimum clearances.............................................. 9
4.6 Clearance from combustible components ............. 9
4.7 Using the installation template............................... 9
4.8 Wall-mounting the product..................................... 9
4.9 Removing/installing the front casing.................... 10
4.10 Removing/installing the side section ................... 10
5 Installation.......................................................... 10
5.1 Checking the gas meter....................................... 11
5.2 Gas and water connections ................................. 11
5.3 Connecting the drain line for the expansion
relief valve............................................................ 11
5.4 Connecting the condensate drain pipework ........ 12
5.5 Connecting the drain cock ................................... 12
5.6 Flue gas installation ............................................. 12
5.7 Electrical installation ............................................ 14
6 Operation............................................................ 15
6.1 Using diagnostics codes...................................... 15
6.2 Displaying the status codes................................. 16
6.3 Using check programmes.................................... 16
7 Start-up ............................................................... 16
7.1 Carrying out the initial start-up............................. 16
7.2 Checking the factory setting ................................ 16
7.3 Checking and treating the heating water/filling
and supplementary water .................................... 17
7.4 Avoiding danger arising from insufficient water
pressure............................................................... 18
7.5 Switching on the product ..................................... 18
7.6 Filling and purging the heating installation .......... 18
7.7 Filling the condensate siphon .............................. 18
7.8 Filling the hot water circuit ................................... 18
7.9 Checking and adjusting the gas settings ............. 19
7.10 Checking function and leak-tightness.................. 20
8 Adapting the unit to the heating
installation.......................................................... 20
8.1 Burner anti-cycling time ....................................... 20
8.2 Setting the pump output....................................... 21
8.3 Setting the bypass ............................................... 21
9 Adjusting the hot water temperature............... 22
9.1 Setting the hot water temperature ....................... 22
10 Handing the product over to the operator ...... 22
11 Inspection and maintenance ............................ 22
11.1 Observing inspection and maintenance
intervals ............................................................... 22
11.2 Procuring spare parts .......................................... 22
11.3 Checking the CO₂ content ................................... 22
11.4 Setting the CO₂ content ....................................... 23
11.5 Removing the gas-air mixture unit....................... 23
11.6 Cleaning the heat exchanger............................... 24
11.7 Checking the burner ............................................ 24
11.8 Checking the ignition electrode ........................... 24
11.9 Cleaning the condensate tray.............................. 24
11.10 Cleaning the condensate siphon ......................... 25
11.11 Cleaning the filter in the cold water inlet.............. 25
11.12 Cleaning the heating filter.................................... 25
11.13 Installing the gas-air mixture unit......................... 26
11.14 Draining the product ............................................ 26
11.15 Checking the pre-charge pressure of the
expansion vessel ................................................. 26
11.16 Completing inspection and maintenance work .... 26
12 Troubleshooting ................................................ 26
12.1 Rectifying faults ................................................... 26
12.2 Calling up the fault memory................................. 26
12.3 Deleting the fault memory.................................... 26
12.4 Resetting parameters to factory settings ............. 26
12.5 Preparing the repair work .................................... 26
12.6 Replacing defective components......................... 26
12.7 Completing repair work........................................ 29
13 Decommissioning the product ......................... 29
14 Customer service............................................... 29
Appendix ............................................................................ 30
A Check programmes – Overview ....................... 30
B Overview of diagnostics codes ........................ 30
C Status codes – Overview .................................. 34
D Overview of fault codes .................................... 35
E Connection diagram: Combination unit .......... 38
F Connection diagram: Combination unit (35
kW) ...................................................................... 39
G Inspection and maintenance work –
Overview............................................................. 40
H Opening in the air/flue pipe .............................. 41
H.1 Positioning of the opening of a fan-supported
flue gas pipe ........................................................ 41
H.2 Text from BS 5440-1 on fan-supported flue
gas pipes ............................................................. 42
H.3 Opening of the flue pipe below eaves and
balconies.............................................................. 42
I Commissioning Checklist................................. 43
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