Viessmann Vitoligno 300-C Installation And Service Instructions Manual page 92

Codes
Code 2
(cont.)
Coding in the delivered condition
Outside temperature time constant
90:128 Time constant for calculating the
adjusted outside temperature.
Time constant 128 corresponds to
approx. 21.5 hours.
Outside temperature offset
92:0 No outside temperature correction
Boiler
Coding
Coding in the delivered condition
Flue gas residual O2 partial load correction
0D:... In partial load operation, the set
value for residual O
increased by the adjustable value.
Boiler water temperature delay
0F:... Shutdown delay if the max. boiler
water temperature is exceeded
Code 1, address E, Boiler group
Transfer heat
10:.... If the boiler water temperature ex-
ceeds the selected value, the ex-
cess heat status is enabled.
Only available for boiler
Flow controller enabled
11:0 Flow temperature control for the
boiler is not active.
Min. set system temperature
13:1 If the heating circuits are not con-
trolled by the boiler control unit, a
minimum set system temperature
can be selected.
Setting of min. set system temper-
ature is enabled.
92
Possible change
90:0
90:1
to
90:199
92:- 10
to
92:10
Possible change
0D:0
in flue gas is to
2
0D:5.0
0F:0
to
0F:240
10:....
to
10:....
50 kW.
>
11:1
11:2
13:0
Adjusted outside temperature
rent outside temperature
Flow temperature is adjusted when
the outside temperature changes
Rapid adjustment: Low set value
■
Slow adjustment: High set value
■
1 increment ≙ 10 minutes
Outside temperature correction
Adjustable value in °C
Adjustable value in %
Setting range in seconds
Setting range in °C
Flow temperature control for the
boiler is active.
The return temperature raising facili-
ty regulates the boiler flow tempera-
ture to the set boiler water tempera-
ture minus 3 K.
Boiler flow temperature control via
PWM pump
≙
PWM pump pump with
Pulse Width Modulation
Only possible when using a PWM
boiler circuit pump
Setting of min. set system tempera-
ture is disabled.
≙
cur-