Viessmann Vitodens 200-W B2HA 112 Installation Instructions Manual page 115

Vitodens 200-W B2HA 112, 150, 399, 530 Service
Heating Circuit 1, 2 and 3
Coding in the factory setting
Extended economy function mixing valve
A7:0 Without mixing valve economy
function
Pump idle time, transition reduced mode
A9:7 With pump idle time:
Heating circuit pump "OFF" if
the set value is altered through
a change in operating mode or
through a change in the set room
temperature
Economy function room temperature
B5:0 With remote control: No room
temperature dependent heating
circuit pump logic function
Parameter address
B5:...
1
2
3
4
5
6
7
8
(continued)
Possible change
A7:1
A9:0
A9:1
to
A9:15
B5:1
to
B5:8
With heating circuit pump logic function:
Heating circuit pump "OFF"
RTactual > RTset + 5 K
RTactual > RTset + 4 K
RTactual > RTset + 3 K
RTactual > RTset + 2 K
RTactual > RTset + 1 K
RTactual > RTset
RTactual > RTset - 1 K
RTactual > RTset - 2 K
With mixing valve economy
function (extended heating circuit
pump logic): Heating circuit
pump also "OFF":
- If the mixing valve has been
attempting to close for longer.
than 20 minutes. Heating circuit
pump "ON":
- If the mixing valve changes to
control function.
- If there is a risk of frost.
Without pump idle time
With pump idle time, adjustable
from 1 to 15.
Heating circuit pump logic
function, see the following table:
Heating circuit pump "ON"
RTactual < RTset + 4 K
RTactual < RTset + 3 K
RTactual < RTset + 2 K
RTactual < RTset + 1 K
RTactual < RTset
RTactual < RTset - 1 K
RTactual < RTset - 2 K
RTactual < RTset - 3 K
Coding 1
49