Buderus GB402-320-5, Installation And Maintenance Instructions For Contractors

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Table of Contents
Logano plus GB402 – 6 720 820 700 (2018/01) 2
Table of Contents
1 Key to symbols and safety instructions . . . . . . . . . . . . . . . . . . . 4
1.1 Explanation of symbols . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
1.2 Safety precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
2 Information on the device . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
2.1 EU Declaration of Conformity . . . . . . . . . . . . . . . . . . . . . . 5
2.2 Determined use . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
2.3 About these instructions . . . . . . . . . . . . . . . . . . . . . . . . . . 5
2.4 Tools, materials and equipment . . . . . . . . . . . . . . . . . . . . 5
2.5 Product Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
2.6 Scope of delivery . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
2.7 Dimensions and specifications . . . . . . . . . . . . . . . . . . . . . 8
2.7.1 Logano plus GB402 dimensions . . . . . . . . . . . . . . . . . . . 8
2.7.2 Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
2.8 Product data for energy consumption . . . . . . . . . . . . . 11
3 Regulations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
3.1 Standards, regulations and directives . . . . . . . . . . . . . 12
3.2 Notes on installation and operation . . . . . . . . . . . . . . . 12
3.3 Duty to obtain a permit and provide notification . . . . . 12
3.4 Installation location . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
3.5 Quality of the heating water . . . . . . . . . . . . . . . . . . . . . 12
3.6 Pipework quality . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
3.7 Frost protection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
3.8 Combustion air connection/flue connection . . . . . . . . 13
3.9 Combustion air quality . . . . . . . . . . . . . . . . . . . . . . . . . 13
3.10 Validity of regulations . . . . . . . . . . . . . . . . . . . . . . . . . . 13
4 Transporting the boiler . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
4.1 Transporting the boiler by crane/hoist . . . . . . . . . . . . 14
4.1.1 Lifting the boiler off the pallet . . . . . . . . . . . . . . . . . . . 14
4.2 Transporting the boiler on rollers . . . . . . . . . . . . . . . . . 14
5 Installing the boiler . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
5.1 Boiler room requirements . . . . . . . . . . . . . . . . . . . . . . . 15
5.2 Wall clearances . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
5.3 Floor-standing boiler levelling . . . . . . . . . . . . . . . . . . . 15
6 Fitting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
6.1 Establishing the flue gas connection . . . . . . . . . . . . . . 16
6.2 Installing the condensate hose . . . . . . . . . . . . . . . . . . . 17
6.3 Fitting the boiler cover . . . . . . . . . . . . . . . . . . . . . . . . . 18
6.4 Connecting the air supply
(for balanced flue operation) . . . . . . . . . . . . . . . . . . . . . 18
6.5 Establishing the heating circuit connection . . . . . . . . . 19
6.5.1 Connecting the flow . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
6.5.2 Installing the safety assembly (on site) . . . . . . . . . . . . 19
6.5.3 Connecting the return . . . . . . . . . . . . . . . . . . . . . . . . . . 20
6.5.4 Installing a DHW cylinder . . . . . . . . . . . . . . . . . . . . . . . 20
6.6 Filling the heating system and checking for leaks . . . . 21
6.7 Making the electrical connection . . . . . . . . . . . . . . . . . 22
6.7.1 Fitting the control unit . . . . . . . . . . . . . . . . . . . . . . . . . . 22
6.7.2 Establishing the power supply connection . . . . . . . . . 22
6.8 Providing the fuel supply . . . . . . . . . . . . . . . . . . . . . . . 23
7 Start up the heating system . . . . . . . . . . . . . . . . . . . . . . . . . . 24
7.1 Checking the operating pressure . . . . . . . . . . . . . . . . . 24
7.2 Checking for leaks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
7.3 Recording gas parameters . . . . . . . . . . . . . . . . . . . . . . 25
7.4 Check the system equipment level . . . . . . . . . . . . . . . 25
7.5 Purging the gas line . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
7.6 Checking the ventilation and extract air apertures
and the flue connection . . . . . . . . . . . . . . . . . . . . . . . . . 26
7.7 Making the heating system operational . . . . . . . . . . . . 26
7.8 Commissioning the control unit and burner . . . . . . . . 26
7.8.1 Switching on the boiler at the BC10 . . . . . . . . . . . . . . 26
7.8.2 Carrying out a flue gas test . . . . . . . . . . . . . . . . . . . . . . 26
7.8.3 Accessing the service level on the RC35 and
displaying monitoring data . . . . . . . . . . . . . . . . . . . . . . 27
7.9 Measuring the gas supply pressure and
static pressure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
7.10 Checking and adjusting the gas:air ratio . . . . . . . . . . . 28
7.10.1 Adjusting CO2 at full load (70-80 %) . . . . . . . . . . . . . . 28
7.10.2 Setting and checking the CO2 values under
partial load . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
7.10.3 Checking the CO2 setting under full load (70-80 %) . 29
7.11
Switching the status display on the BC 10 to show
the boiler temperature status . . . . . . . . . . . . . . . . . . . . 29
7.12 Returning to operating mode from the flue gas test . . 29
7.13 Recording actual values . . . . . . . . . . . . . . . . . . . . . . . . 29
7.13.1 Feed pressure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
7.13.2 Negative pressure in the supply air duct in
open-flue mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
7.13.3 CO value . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
7.14
Function tests . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
7.14.1 Checking the ionisation current (flame current) . . . . . 30
7.15
Check for water leaks during operation . . . . . . . . . . . . 30
7.16 Installing casing parts . . . . . . . . . . . . . . . . . . . . . . . . . . 30
7.17 Informing the user, handing over technical documents 30
7.18 Commissioning report . . . . . . . . . . . . . . . . . . . . . . . . . 31
8 Shutting down the heating system. . . . . . . . . . . . . . . . . . . . . 32
8.1 Shutting down the heating system via the control unit 32
8.2 Shutting down the heating system in an emergency . . 32
9 Environment / disposal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32