34
Special situations
ź
When 3 consecutive transmissions (after 15 minutes) from the
AURATON
3021R
regulator are lost, an error is signalled on the RTH receiver (LED
flashing continuously red and green). The RTH receiver starts executing the
ON - OFF cycle memorised during the last 24 hours of operation until the
problem is removed.
ź
When signal return (from the AURATON 3021R regulator), the error is
cancelled and the receiver enters its normal mode of operation.
ź
Switching the relay is synchronised with the wave of the 230 V mains
voltage in order to ensure that closing and opening contacts of the relay
occurs around the zero-crossing point. This prevents the occurrence of an
electric arc, significantly extending the relay service time.
ź
The RTH receiver is equipped with a unique algorithm for analysing the ON
- OFF cycles. The entire heating cycle from the last 24 hours is recorded in
the memory of the RTH receiver. In the event of losing communication with
the AURATON 3021R regulator, the RTH receiver automatically executes
the ON - OFF cycle memorised during the last 24 hours. This provides time
for restoring transmission (removing interferences) or fixing the 3021R
regulator without a significant deterioration of thermal comfort conditions
in the controlled spaces.
Unique features of AURATON 3021 RTH
35
Additional information and notes
ź
The AURATON 3021R regulatormust be installed at least 1 metre from the
RTH receiver (too strong a signal from the transmitters can cause
interference).
ź
At least 30 seconds must elapse between switching the relay off and on.
ź
Data transmission from the AURATON 3021R regulator to the receiver
occurs upon each change of 0.2 °C of the surrounding temperature. When
the temperature is stable, the regulator sends heart-beat data every 5
minutes (which is signalled with the LED blinking orange on the RTH
receiver).
ź
In the event of a power outage, the RTH receiver will switch off. When power
is restored, the heating device is switched on automatically, and the RTH
receiver awaits a signal from the paired transmitters (this signal should be
received within 5 minutes of restoring power). After receiving the signal, the
RTH receiver enters the normal mode of operation.
ź
The RTH receiver cannot be placed in metal containers (e.g. an assembly
box, a metal enclosure of a heater) in order to not to interfere with its
operation.
ź
Pressing any function key for the first time always starts the backlight first,
and then the key function is performed.
ź
While programming any function, if no key is pressed for 10 seconds, this will
be interpreted as pressing the
key.
ź
The control functions of the controller can be switched on and off
(e.g. after heating season) by holding the
key pressed for a while.
(The controller will display only the current time and temperature
of the room -
no "timeline”
)
.
[OK]
<ok.
