Vitotronic 300, GW2B Installation and Service
5693 982 - 04
58
Commissioning
Matching the Coding Addresses to the System Version
(continued)
Matching coding addresses according to the burner used
Address
Meaning
Setting
03:...
Fuel
Gas operation: 0 (factory set condition)
Oil operation: 1 (irreversible)
08:...
Units and tens of the maximum
burner output
Example: Max. burner output:
225 kW – select: 25
Note:
Values up to and including 199 kW can be entered directly.
09:...
Hundreds of the maximum burner
output
Example: Max. burner output: 225 kW – select: 2
15:...
Modulation range runtime
Calculate runtime (s) of servomotor between base load and max.
burner output
0A:...
Ratio of output base load to
maximum burner output in percent
Example: Base load output: 72 kW
Max. burner output: 225 kW
(72 kW: 225 kW) · 100% = 32%
05:...
Ratio of partial output at
b
of the
servomotor runtime to maximum
burner output in percent
Example: Partial output 171 kW
Max. burner output: 225 kW
(171 kW : 225 kW) · 100% = 76%
Note:
The burner must be fully adjusted. To achieve
a wide modulating range, set the minimum output
as low as possible (take the chimney and flue
system into account).
Matching the control unit to a modulating burner
Checking Actuators and Sensors
Testing relays
1. Press
OK
and
simultaneously for approx. 4 sec.
2. “Actuator
test”
The following actuators (relay outputs) can be controlled subject to the system equipment level:
Display
Explanation
“All actuators”
OFF
All actuators have been switched off.
“Base load”
ON
Mod. burner operates at min. output.
“Burner”
ON
Burner stages 1 is switched on.
