Viessmann Vitocrossal 300 Service Manual page 74

Floor mounted, gas-fired condensing boiler with matrix gas burner and lambda pro control
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Coding 2
Heating Circuit 1, 2 and 3
Coding in the factory setting
E5:0
E6:...
E7:30
E8:1
E9:45
F1:0
F2:8
F5:12
F8:-5
F9:-14
FA:20
FB:60
*1
Party mode ends automatically in the "Heating and DHW" program, when the system changes over to operation with
standard room temperature.
74
(continued)
Without external variable speed
heating circuit pump
Maximum speed of the variable
speed heating circuit pump in
% of the maximum speed in
standard mode. Value is
specified by boiler-specific
parameters
Minimum speed of the variable
speed heating circuit pump:
30% of the maximum speed
Minimum speed in operation
with reduced room temperature
subject to the setting in coding
address "E9"
Speed of the variable speed
heating circuit pump: 45% of
the maximum speed during
operation with reduced room
temperature
Slab curing function disabled
Time limit for party mode
or external heating program
changeover via push button:
8 h
*1
Run-on time of the boiler circuit
pump in heating mode: 12
minutes.
Temperature limit for terminating
the reduced mode 23°F (-5ºC);
See operating instructions.
Observe the setting of coding
address "A3".
Temperature limit for raising the
reduced set room temperature
6.8°F ( -14ºC); See operating
instructions.
Raising the set boiler water
temperature or the set supply
temperature when changing from
operation with reduced room
temperature to operation with
standard room temperature, by
20%.
See operating instructions.
Duration for raising the set boiler
water temperature or the set
supply temperature (see coding
address "FA") 60 minutes
See operating instructions.
Vitocrossal 300 CU3A 26 to 57 Service
Possible change
E5:1
With external variable speed heating
circuit pump.
E6:0
Maximum speed adjustable
to
from 0 to 100%.
E6:100
E7:0
Minimum speed adjustable from
to
0 to 100% of the maximum
E7:100
speed.
E8:0
Speed subject to the setting in
coding address "E7".
E9:0
Speed adjustable from 0 to 100%
to
of the maximum speed during
E9:100
operation with reduced room
temperature.
--
F2:0
No time limit for party mode
F2:1
Time limit adjustable from 1 to
to
12 h
F2:12
F5:0
No run-on time for the circulation
pump in the heating circuit
connection set.
F5:1
Run-on time of the circulation pump
to
in the heating circuit connection set
F5:20
adjustable from 1 to 20 minutes.
F8:+10
Temperature limit adjustable from
to
50 to -76°F (10 to -60°C).
F8:-60
F8:-61
Function disabled.
F9:+10
Temperature limit for raising
to
the set room temperature to the
F9:-60
value selected for standard mode
adjustable from 50 to -76°F
(10 to -60°C).
FA:0
Temperature rise adjustable from
to
0 to 50%.
FA:50
FB:0
Duration adjustable from 0 to
to
300 minutes;
1 step ≙ 2 minutes.
FB:150
--
*1.
*1.

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