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Vitocrossal 300 CA3 Series 2.5 to 6.0 Installation/Service
Operating the System
(continued)
Service
Function
Group
Coding
“Connection at plug 29”
“General”
4D
“Viessmann system number”
“General”
98
“With LON communication module: LON Participants monitoring”
“General”
9C
“With LON communication module” (lead control unit is fault manager)
“General”
79
“Central control of heating circuits”
“General”
7A
“Viessmann system number”
“General”
98
“With LON communication module: Monitoring LON participants”
“General”
9C
“Storage tank heating, hysteresis”
“DHW”
55
Adjusting the coding
Check all addresses in Coding level 1 and adjust if
required. See “Coding Levels”.
Check the following coding addresses in Coding level 2
and adjust accordingly.
If the fault indicator lights up on the control unit and the
display on the burner control unit is blinking, reset burner
control unit. To reset, press the reset button R on the
burner control unit.
If the fault continues, the supply side of the combination
gas valve may be blocked due to work on the gas pipe.
See the following chapter to adjust coding levels.
See Chapter “Coding Levels” for procedural steps and
overview
on code setting.
During the initial start-up, the equipment can go into a
fault state due to insufficient gas in the gas pipe (Fault
lamp lights up on the control unit). Ventilate gas line once
again and reset burner control unit. See “Burner control
unit” chapter.
Burner will start up after a 3 min delay.
IMPORTANT
IMPORTANT
