Dip Switch 2; Limitation Of Setpoint; Cooling Function; Periodic Pump Run (Pump Kick) - Siemens REA22 Basic Documentation

4.2

DIP switch 2

Note
4.2.1

Limitation of setpoint

4.2.2

Cooling function

4.2.3

Periodic pump run (pump kick)

CE1P2276E / 31.03.1999
22/30
1
3...29°C
16...29°C
HEATING
COOLING
PUMP OFF
PUMP ON
The factory setting of all DIP switches is OFF.
If one or several DIP switch positions are changed, the reset button must be pressed as
confirmation. Otherwise the previous settings are still active!
When using minimum limitation of setpoint to 16 °C, undesired heat transfer to neigh-
bouring flats is prevented in buildings that have several heating zones. The function can
be selected with DIP switch 2.
DIP switch 2 is used for switching over to cooling mode when used in cooling applica-
tions.
COOLING
The display shows
The setting is made with DIP switch 2 while the pump is running. Protects the pump
from seizing during longer OFF periods. Periodic pump run is activated for one minute
every 24 hours at 12:00 h.
Basic Documentation REA22
Description of heating engineer settings
2 3
after confirmation with the reset button.
Issue 2.0 Siemens Building Technologies
Landis & Stefa Division