5
5790 733 - 07
Vitocrossal 300 CA3 - 3.5, 4.0, 5.0 and 6.0 Installation/Service
Venting Options - Stainless Steel/PP(s)
General Service Information
Service
Table of Contents
Two Pipe System - Vertical Exhaust/
Vertical Air Intake ....................................................
68
Two Pipe System - Horizontal Exhaust/
Horizontal Air Intake .................................................
70
Two Pipe System - Vertical/Horizontal Installations .......
71
Individual Burner Intake Ducting ..............................
72
Single Pipe System - Vertical Exhaust/
Room Air Dependant .................................................
73
Single Pipe System - Horizontal Exhaust/
Room Air Dependant .................................................
74
Multiple Boiler Installations .....................................
75
Service Equipment ....................................................
76
Important Regulatory and Installation Requirements ......
77
Safety Instructions ................................................
78
Filling the Heating System with Water and Ventilating ..
80
Filling Condensate Trap with Water ............................
80
Checking the Type of Gas .........................................
80
Operating the System ...........................................
81
Adjusting the Heating Curve ......................................
84
Integrating the Control Unit into the LON.....................
86
Preparing for Service Work on the Boiler and Burner .....
88
Reducing Operational Output (if required) ....................
90
Checking Static and Connection Pressure ....................
91
Checking the Rotary Damper Setting ..........................
92
Checking the Burner Damper Setting...........................
92
Measuring CO
2
Content ............................................
93
Displaying Ionization Current ....................................
95
Turning the System Off .............................................
95
Dismantling the Burner........................................
96
Burner Parts ...........................................................
98
Display and Programming Unit of Burner Control Unit ...
99
Coding Card on Burner Control Unit ...........................
99
Burner Control Unit ................................................
100
Fuel Conversion NG to LPG .....................................
100
Converting Gas Type..............................................
102
Burner Interface Panel .............................................
103
3A and 3B Boiler Temperature Sensor Description ......
104
Boiler Water Temperature Sensor .............................
105
Boiler Secondary Temperature Sensor .......................
106
Manual Reset Limits ...............................................
107
Gas Valve .............................................................
108
Air Pressure Switches ...........................................
108
Ignition Unit ..........................................................
111
Ignition Cables .......................................................
112
Rotary Damper and Servomotor ...............................
112
Replacing the Solenoid Valve ...................................
112
Fan .......................................................................
113
Checking and Cleaning the Burner Tube ....................
113
Checking the Ignition Electrodes and Ionization Electrode
. 114
Cleaning the Burners .............................................
114
Cleaning the Combustion Chamber and
Heating Surfaces ...................................................
115
Checking Heating Water Connections for Leakage ......
116
Cleaning the Condensate Drainage System ................
116
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