Viessmann VITOTRONIC 100 GC1B Installation And Service Instructions Manual page 112

Coding Level 2
Category 4 "Solar"
Coding in the Delivered Condition
23:4 Stop temperature differential for central heating
backup: 4 K.
Switching output sS is switched off when
the temperature at sensor / falls below the
stop point. The stop point is the sum of the
temperature at sensor aÖ and the value selected
for the stop temperature differential.
24:40 Start temperature for thermostat function 104°F
(40°C).
Start temperature for thermostat function ≤ stop
temperature for thermostat function:
Thermostat function, e.g. for reheating.
Switching output sS is switched on when the
temperature at sensor / falls below the start
temperature for the thermostat function.
Start temperature for thermostat function > stop
temperature for thermostat function:
Thermostat function, e.g. for utilizing excess heat.
Switching output sS is switched on when the
temperature at sensor / exceeds the start
temperature for the thermostat function.
25:50 Stop temperature for thermostat function 122°F
(50°C).
Start temperature for thermostat function ≤ stop
temperature for thermostat function:
Thermostat function e.g. for reheating. Switching
output sS is switched off when the temperature
at sensor / exceeds the start temperature for
the thermostat function.
Start temperature for thermostat function > stop
temperature for thermostat function:
Thermostat function e.g. for utilizing excess heat.
Switching output sS is switched off when the
temperature at sensor / falls below the start
temperature for the thermostat function.
26:1 Priority for DHW tank
1 – with alternate heating.
Only when setting code "20:8".
27:15 Alternate heating time 15 min.
The DHW tank without priority is heated at most
for the duration of the set alternate heating time
if the DHW tank with priority is heated up.
28:3 Alternate pause time 3 min.
After the selected alternate heating time for the
DHW tank without priority has expired, the rise
in collector temperature is captured during the
alternate pause time.
112
(continued)
Vitotronic 100, GC1B Installation and Service
Possible Change
23:2 Stop temperature differential for central heating
to backup is adjustable from 1 to 29 K.
23:30
24:0 Start temperature for thermostat function
to is adjustable from 0 to 100 K.
24:100
25:0 Start temperature for thermostat function
to is adjustable from 0 to 100 K.
25:100
26:0 Priority for DHW tank 1
– without alternate heating.
26:2 Priority for DHW tank 2
– without alternate heating
26:3 Priority for DHW tank 2
– without alternate heating
26:4 Alternate heating without priority
for one of the DHW tanks.
27:5 The alternate heating time is adjustable from 5
to to 60 min.
27:60
28:1 The alternate pause duration is adjustable from
to 1 to 60 min.
28:60