Viessmann Vitocrossal 200 CM2 186, Service Instruction

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Vitocrossal 200 CM2 186 to 311 Service
Table of Contents
Safety
General Information
Commissioning, Inspection and
Maintenance
Page
Safety, Installation and Warranty Requirements
..............2
Equipment .................................................................3
Tools......................................................................3
Cleaning supplies.....................................................3
Testing/analysis equipment.......................................3
Technical information...............................................3
Replacement parts...................................................3
Product Information .....................................................3
About these Instructions ..............................................5
Important Regulatory and Installation Requirements
........5
Safety Instructions ......................................................8
Target group..........................................................8
Regulations.............................................................8
If you smell gas......................................................8
If you smell flue gas................................................8
Working on the system.............................................8
Repair work............................................................8
Auxiliary components, spare and wearing parts...........8
Checking the high limit safety cut-out setting..............9
Filling the heating system with water and venting
the system..............................................................9
Filling siphon with water...........................................9
Steps - Commissioning, Inspection and Maintenance .....10
Commissioning the system......................................10
Select the gas type...............................................10
Conversion to liquid propane gas (LPG)....................11
Conversion to natural gas (NG)................................12
Converting gas type on burner control unit................13
Altitude adjustment................................................13
Reducing operational output (if required)...................14
Checking the static and the supply pressure..............14
Supply pressure for NG and LPG..............................15
Checking the Rotary Damper Setting
(CM2 246/311only)...............................................15
Checking the CO
2
level...........................................16
Preparing the test..................................................16
CO
2
test at the upper heating input..........................16
CO
2
test at the lower heating output........................17
Displaying the ionization current...............................17
Shutting down the system.......................................18
Opening the boiler door..........................................18
Separating the neutralizing system (if installed)
from the boiler and connecting the drain hose............18
Cleaning the combustion chamber and heating surfaces..18
Checking gaskets and thermal insulation parts...........18
Checking all connections for leaks............................18
Cleaning and reconnecting the condensate drain system..18
Checking the condensate drain and the neutralizing
system (if installed)................................................19
Checking neutralization unit (if installed)...................19
Checking the cylinder burner assembly......................19
Checking the ignition and ionization electrodes..........20
Closing the boiler door............................................20
Cleaning the burner................................................20
Making the electrical burner connection....................21
Checking all gas connections for leaks......................21
Checking the Flue Side Gaskets/Seals .........................21
Checking the Flue Gas Temperature Sensor ..................22
Replacing the Flue Gas Temperature Sensor
.................22
Checking the Boiler Temperature Sensor ......................23
Replacing the Boiler Temperature Sensor .....................24