Operating instructions

Coding in the delivered condition Possible change
Heating circuit A1/M2
A6:36 Extended econ omy
function disabled (only
for weather-compen-
sated control units)
A6:5
to
A6:35
Extended economy func-
tion enabled, i .e. the
burner and hea ting circuit
pump will be switched
OFF and the mixer will be
closed at a variable
value, which is adjustable
between 5 and 35 °C p lus
1°C.Thisvalueisbased
on the adjusted o utside
temperatur e, comprising
the actual outside tem-
peratureandatimecon-
stant, which takes the
coolingdownofanaver-
agebuildingintoconsid-
eration.
A7:0 Without m ixer economy
function (only for weath -
er-compensated control
units)
A7:1 With mixer economy
function (extended h eat-
ing circuit pump logic):
Heating circuit pump also
"OFF":
If a mixer has been
closed for lon ger than
20 min.
Heatingpump"ON":
&
If the mixer changes to
control mode
&
After cylinder heating
(for 20 min)
&
If there is a risk of frost
A8:1 Heating c ircuit with
mixerM2createsade-
mand for the inter nal
circulation pu mp (only
for weather-compen-
sated control units)
A8:0 Heating circuit M2 cre-
ates no demand for the
internal circulation pump
Code 2 (cont.)
53
Coding
5692 619 GB