Viessmann Vitocrossal 300 Service Manual page 55

Floor mounted, gas-fired condensing boiler with matrix gas burner and lambda pro control
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Vitocrossal 300 CU3A 26 to 57 Service
Heating Circuit 1, 2 and 3
Coding in the factory setting
Minimum supply temperature heating circuit
C5:20
Minimum supply temperature heating circuit
C6:74
Heating program - changeover
D5:0
Ext. heating program changeover to heating circuit
D8:0
Slab curing function (NOT USED)
F1:0
Party mode time limit
F2:8
*1
Party mode ends automatically in the "Heating and DHW" program, when the system changes over to
operation with standard room temperature.
(continued)
Electronic minimum supply
temp. limit 68°F (20°C)
Electronic maximum supply
temperature limit 165°F
(74°C)
The external heating program
changeover changes the
heating program to "Constant
operation with reduced room
temperature" or "Standby
mode"
No heating program changeover
via extension EA1
slab curing function disabled
Time limit for party mode
or external heating program
changeover via push button:
8 h
*1
Possible change
C5:1
Minimum limit adjustable from
to
34 to 260°F (1 to 127°C)
C5:127
(limited by boiler-specific
parameters).
C6:10
Maximum limit adjustable from
to
50 to 260°F (10 to 127°C)
C6:127
(limited by boiler-specific
parameters).
D5:1
The external heating program
changeover changes to
"Constant operation with
standard room temperature"
(subject to coding address 3A,
3B and 3C).
D8:1
Heating program changeover
via input DE1 at extension EA1.
D8:2
Heating program changeover
via input DE2 at extension EA1.
D8:3
Heating program changeover
via input DE3 at extension EA1.
F1:1
to
F1:6
F1:15
F2:0
No time limit for party mode
F2:1
Time limit adjustable from 1 to
to
12 h
F2:12
Coding 1
--
--
*1.
*1.
55

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