Functional Check - Siemens REA23 Installation Instructions Manual

PID 6 Fast controlled systems:
For locations with significant temperature
variations.
Difficult controlled systems:
Proper on / off controller with a switching
differential of 0.5 C.
(factory setting)
4.2.5 Periodic pump run
This function protects the pump against seizing during
longer off periods. Periodic pump run is activated for one
minute every 24 hours at 12:00 (when pump run is
activated, the flame symbol
On the heating engineer level, change from the flashing
CAL symbol to the symbol by turning the setting knob
(factory setting, periodic pump run off). Press to accept.
will flash (factory setting). Press the OK-knob to accept
or continue turning the setting knob. The
periodic pump run on will flash. Press the OK-knob to
accept (also refer to Fig.
4.2.6 Heating / cooling mode
On the heating engineer level, change from the flashing
CAL symbol to the heating / cooling symbols by turning the
setting knob.
Press the OK-knob to accept, the
flash (factory setting). Press the OK-knob to accept or con-
tinue turning the setting knob. The cooling symbol
flash. Press the OK-knob to accept (also refer to Fig
4.2.7 Protection mode
Use operating mode selector
refer to Fig. ).
Adjustment of standard values (frost protection = 5 °C;
overheat protection = 35 °C) being done in temperature
menu T by setpoint (refer to Operating Instructions).
5 Replacing the controller on its base
Proceed according to Fig. G.
6

Functional check

a) Check the display. If there is no display, check the
correct fitting and function of the batteries.
Siemens / Building Technologies / HVAC Products
appears on the display).
symbol for
).
heating symbol will
will
to select symbol (also
b) Comfort mode
c) Select temperature menu T and adjust the temperature
setpoint to 29 °C (refer to the Operating
Instructions)
d) The relay must be energized and thus the actuating
device activated within one minute. Flame symbol
will appear on the display. If that is not the case:
• Check actuating device and wiring
• The room temperature is possibly above 29 °C
e) Reset the setpoint temperature
(standard value 19 °C or individual setting)
f) Select the required operating mode
7 Reset
User-defined data:
Press the button behind the pin opening for at least one
second: this resets the user-specific settings to their default
values (the heating engineer settings will not be changed).
The clock starts at 12:00. During the reset time, all sections
of the display light up, enabling them to be checked.
All user-defined data plus the heating engineer
settings:
Press the button behind the pin opening together with the
warmer and colder buttons for at least one second.
After this reset, the factory settings will be reloaded (also
refer to section "Factory settings" in the operating
instructions).
8 Notes
).
• REA23 is an electric weekly programmable room
temperature controller.
• The controller conforms to "Software Class A" and is for
use in "normal" pollution situation.
• If the reference room is equipped with thermostatic
radiator valves, they must be set to their fully open
position
• The remote operation contact T1 / T2 must be wired
separately using a separate screened cable
• Ensure that the local regulations for electrical
installations are complied with
CE1G2216xx
to the initial value
21.06.2007 5/22