Viessmann VITODENS 222-F Service Instructions Manual page 64

Floor mounted, gas-fired condensing storage combi boiler
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Code 2
Heating Circuit 1, 2 and 3
Coding in the factory setting
F6:25
F7:25
F8:-5
F9:-14
FA:20
FB:60
64
(continued)
In the "Only DHW" operating
mode, the circulation pump in
the heating circuit connection
set is permanently ON
In the "Standby" operating
mode, the internal circulation
pump is permanently ON
Temperature limit for terminating
the reduced mode 23° F (-5º C);
See operating instructions.
Observe the setting of coding
address "A3".
Temperature limit for raising the
reduced set room temperature
6.8° F ( -14º C); See operating
instructions.
Raising the set boiler water
temperature or the set flow
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 flow
temperature (see coding address
"FA") 60 minutes
See operating instructions.
Vitodens 222-F B2TA 19 and 35 Service
Possible change
F6:0
In the "Only DHW" operating mode,
the circulation pump in the heating
circuit connection set is permanently
off.
F6:1
In the "Only DHW" operating mode,
to
the circulation pump in the heating
F6:24
circuit connection set will be
started 1 to 24 times per day for
10 minutes each time.
F7:0
In the "Standby" operating mode,
the internal circulation pump is
permanently off.
F7:1
In the "Standby" operating mode,
to
the internal circulation pump will be
F7:24
started 1 to 24 times per day for
10 minutes each time.
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:300

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