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Coding Level 2
"DHW" Group
Coding in the factory set condition
"Boiler temperature during DHW heating"
60:20
During DHW heating, the boiler water
temperature is up to 36°F (20 K) higher
than the set DHW temperature.
"DHW pump"
61:1
DHW pump starts immediately.
"DHW pump delay off"
62:10
DHW pump with a delay off time of up
to 10 min after tank heating.
"In comfort mode and after external changeover to constant operation with the standard room temperature"
64:2
Enable constant DHW heating and DHW
pump "ON".
"Input of the set DHW temperature"
66:4
At the programming unit of the control
unit and all installed Vitotrol 300A
remote controls.
"For solar DHW heating: DHW temperature target"
67:40
DHW setpoint temperature 104°F
(40°C). Reheating is suppressed above
the selected set temperature (DHW
heating by the boiler only if solar energy
is not sufficient).
"With 2 tank temperature sensors: Tank heating stop point"
68:8
With 2 tank temperature sensors (coding
"55:2"): Tank heating stop point at set
value x 0.8.
160
(continued)
Vitocrossal 300 CA3 Series 2.5 to 6.0 Installation/Service
Possible change
60:10
The differential between the common
to
supply temperature and the set DHW
60:50
temperature is adjustable from
11°F to 90°F (10 K to 50 K).
61:0
DHW pump starts subject to boiler
temperature.
62:0
No DHW pump delay off
62:1
Delay off time adjustable from 1 to 15
to
min.
62:15
64:0
No DHW heating; DHW pump "OFF"
64:1
DHW heating and DHW pump "ON"
according to time program.
66:0
At the programming unit of the
control unit.
66:1
At the programming unit of the control
unit and remote control unit of the
heating circuit without mixing valve A1
(heating circuit 1).
66:2
At the programming unit of the control
unit and remote control unit of the
heating circuit with mixing valve M2
(heating circuit 2).
66:3
At the programming unit of the control
unit and remote control unit of the
heating circuit with mixing valve M3
(heating circuit 3).
66:5
At the remote control of the heating
circuit without mixing valve A1
(heating circuit 1).
66:6
At the remote control of the heating
circuit with mixing valve M2
(heating circuit 2).
66:7
At the remote control of the heating
circuit with mixing valve M3
(heating circuit 3).
67:0
No set value 3
67:10
DHW setpoint temperature adjustable
to
from 50°F to 203°F (10°C to 95°C)
67:95
(limited by boiler-specific coding).
Observe setting of coding "56".
68:2
Factor adjustable from 0.2 to 1
to
1 step
68:10
0.1
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