Helo RONDO Instrucciones De Uso E Instalación página 34

Sauna's temperature display:
Detector OLET 19 obtainable as an accessory can be installed to a (free) wall, for example 300 -
500mm from the ceiling. This sensor is only for the temperature display of the sauna room and
therefore its location has no particularly significant meaning. The temperature is shown in the lower
display of the control panel alternating with the timing once the full power has been connected on.
The controller's electronics detect automatically the sensor once it has been connected.
However, the sensor must not be installed above the heater nor in the corner as then the
temperature display may be distorted.
Control panel error displays:
When certain error conditions appear, the control panel is able to identify via its display what may
cause the distortion. When a distortion occurs, the displays will show an error notification and the
alarm output in the heater is activated. This output can be connected, for example to a buzzer (12V
DC max 25 mA), creating also an audible alarm.
SEn Err (Sensor Error) stone space element disconnected or damaged.
SEr Err (Serial Error) serial traffic error between the heater and the controller.
hiL Err (High Limit Error) stone space overheated (>400°C), electronic disconnection.
CIRCUIT CARD OLEA 71
Control panel
Stone space
thermoelement
Sauna space
sensor element
(Optional extra)
Alarm contact
12 VDC 25 mA
+
Rus
-
Val
Rx
Vih
Tx
Kel
Val - K
Vih +K
Kel T1
Pun T2
L2
L1
U V
Heater light
LED
A1A2
L3
Control Light
W
F2
L
5