Coding in the delivered condition
Possible change
Boiler circuit, mixer circuit
A6:36
Extended economy
function
disabled
(only
for weather-compen-
sated control units)
A6:5
to
A6:35
Extended economy mode
is enabled, i.e. the burner
and heating circuit pump
are switched OFF and
the mixer will be closed at
a variable value that is
adjustable between 5 and
35 °C plus 1 °C. This
value is based on the ad-
justed outside tempera-
ture, comprising the
actual outside tempera-
ture and a time constant
that takes the cooling
down of an average
building into considera-
tion.
A7:0
Without mixer economy
function (only for weath-
er-compensated control
units)
A7:1
With mixer economy
function (extended heat-
ing circuit pump logic):
Heating circuit pump also
"OFF" if the mixer was
closed longer than
20 min. Heating pump
"ON":
&
If the mixer changes to
control mode
or
&
After cylinder heating
(for 20 min)
or
&
If there is a risk of frost
A8:1
Heating circuit with
mixer M2 creates a de-
mand for the internal
circulation pump (only
for weather-compen-
sated control units)
A8:0
Heating circuit with mixer
M2 (mixer circuit) creates
no demand for the inter-
nal circulation pump
Code 2
(cont.)
54
Coding
5692
673
GB
Содержание VITODENS 300-W
Страница 106: ...aND Water pressure sensor a Modulation coil Connection and wiring diagram internal cont 106 Designs 5692 673 GB...
Страница 107: ...A1 Main PCB A2 Power supply unit Connection and wiring diagram external connections 107 Designs 5692 673 GB...
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Страница 113: ...Parts lists cont 113 Parts lists 5692 673 GB...
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