User manual

33
741.011 | 12.18
EN
T
T
F
unc
SET
g
CO2
/kWh
therm
1 999 218
2)
1)
tyP 1: Calculation of the flow rate from the pump speed. To do this, the displayed flow rate values are entered
at two measuring points (pump speed min. and max.).
tyP
2: Determining the flow rate using a pulse water meter. The flow rate of the pulse water meter in
litres/impulse is entered.
2)
Source: Erneuerbare Energien in Zahlen – Nationale und internationale Entwicklung (Renewable energy sources
in figures - national and international development), p. 20, as of: June 2010; Federal Ministry for the Environ-
ment, Nature Conservation and Nuclear Safety (BMU)
11.3.8 Circulation
Switches a circulation pump on and off on a temperature and/or time
controlled basis. The pump must be connected to output R1.
Temperature control: If the temperature in the circulation return falls
below the T
on
value, then the circulation pump is switched on until the
T
off
temperature is reached.
Time control: The circulation pump is switched on when the current
time lies within one of 3 configurable time windows.
Temperature and time control: The circulation pump is switched on
when the switch-on conditions for the temperature and time control are
satisfied.
Note
Install the circulation sensor at least 1.5 m away from the storage tank
to avoid false measurements due to heat conduction of the pipes.
Display Characteristic min. max.
Factory
setting
Activation on, oFF
oFF
Pump type AC, HE
1)
AC
Pump characteristics (only HE) AA, Ab, C (see p. 15)
–
Temperature control on, oFF
oFF
Sensor input for circulation
return
temperature sensor
1 ... 5 –
Switch-on temperature T
on
0 °C T
off
– 2 K 30 °C
Switch-off temperature T
off
T
on
+ 2 K 95 °C 35 °C
Time control on, off
off
Time window 1 start/end 0:00 23:59 6:00/8:00
Time window 2 start/end 0:00 23:59 12:00/13:30
Time window 3 start/end 0:00 23:59 18:00/20:00
1)
Notice
Standard pump: Set AC!
High-efficiency pump: Set HE!
External relay: Set AC pump type!