Viessmann VITOLADENS 300-W Installation And Service Instructions Manual page 62

Code 1
Heating circuit 1, heating circuit 2, heating...
Coding in the delivered condition
Extended economy function mixer
A7:0 Without mixer economy
function (only for heating
circuits with mixer)
Pump idle time, transition reduced mode
A9:7 With pump idle time:
heating circuit pump
"OFF" in case of set value
modification by changing
the operating mode or
changing the set room
temperature
Weather-compensated/room temperature hook-up
b0:0 With remote control:
Heating mode/reduced
mode: weather-compen-
sated (change the code
only for the heating circuit
with mixer)
62
Possible change
A7:1 With mixer economy func-
tion (extended heating cir-
cuit pump logic):
Heating circuit pump also
"OFF":
■ If the mixer has been
closed for longer than
20 min.
Heating circuit pump
"ON":
■ If the mixer changes to
control function
■ If there is a risk of frost
A9:0 Without pump idle time
A9:1 With pump idle time, ad-
to justable from 1 to 15. The
A9:15 higher the value, the longer
the pump idle time.
b0:1 Heating mode: weather-
compensated
Reduced mode: with room
temperature hook-up
b0:2 Heating mode: with room
temperature hook-up
Reduced mode: weather-
compensated
b0:3 Heating mode/reduced
mode: with room tempera-
ture hook-up
(cont.)