Rehau NEA H 24 Notice D'emploi Et De Montage page 43

temperature falls below 5 ºC the heating
valve will be activated
If an external time switch is activated
and the clock is displayed then the
change in set temperature is temporary
The set point will return to normal / reduced
on next time switch program change If the
clock is not displayed, the target value
change is permanent
Auto - Standard thermostat
A
R
B
R
A
Time switch program activ; normal mode
B
Time switch program activ; reduced mode
Display messages
A
B-D
A
Frost protection is active
B
Er 4 – Room temperature out of sensor range
C
Er 5 – Interruption of room temperature probe
D
Er 6 – Short circuit of room temperature probe
Frost protection display will remain
until any key is pressed
General function information
Valve protection
To protect the valves the output is turned on
for 5 minutes in every week This function
stops the valve from getting stuck due to
long periods of inactivity
Pulse width modulation
Room temperature control is achieved by
opening and closing the circuit control
R
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