Technical
data
63
Mixed heating circuit / Mixer circuit
In the mixed heating circuit a three-way valve is used to
add cooled water from the return flow to the hot flow
water. The flow temperature is thus reduced. This is
important for Underfloor heating systems, for example,
because they must only be operated with low flow
temperatures.
Heating time
In the heating programs you can define up to three
heating times per day, one for the morning, one for
lunchtime, and one for the evening for example. During a
heating time, the temperature is controlled to the desired
room temperature. Between heating times the
temperature is controlled to the setback temperature.
Technical data
If you have any technical questions, please contact your
local branch office/agent.
The addresses are available on the Internet or from Elster
GmbH.
We reserve the right to make technical modifications in
the interests of progress.
Header pump
A header pump is used to pump the hot water in a system
with one or several heat sources. It is switched on as
soon as a consumer in the system requests heat.
Feed pump
A feed pump functions like a header pump. It is switched
on as soon as an internal consumer in the system
requests heat.
Legionella
Legionella are bacteria that live in water. The hot water
storage tank is heated to 65°C every 20th heating period
or at least once a week as protection against these
bacteria.
Supply voltage to EN 60038
AC 230V
10%
Power consumption
max. 15W
Switching capacity of the relays
AC 250V 2(2)A
Switching capacity of the Triac (A12)
AC 250V 1(1)A
Maximum current on terminal L1'
6,3A
Enclosure to EN 60529
IP40
Safety class to EN 60730-1
I
Power reserve of the timer
minimum 10 hours
Permitted ambient temperature during
operation
0 to 50°C
Permitted room temperature during
storage
-20 to 60°C
Permissible humidity non condensing
%95 r.H.
Sensor resistances
Tolerance of the resistor
Temperature tolerance
Tolerance of the resistor
Temperature tolerance
Tolerance of the resistor
NTC 5k
(AF,KF,SPF,VF)
+/- 1% at 25°C
+/- 0.2K at 25°C
PTC 1010
(AFS,KFS,SPFS,VFAS)
+/- 1% at 25°C
+/- 1.3K at 25°C
PT1000 sensor with 1k
+/- 0,2% at 0°C