OJ ETO2 Manuel D'instructions page 18

Type ETO2
OFF TEMP 2 OFF
AFTERRUN 1 2:00
AFTERRUN 2 2:00
OFFSET T1 0.0C
OFFSET T2 0.0C
OFFSET OUT. 0.0C
MIN WATER 5.0C
MAX WATER 55.0C
SENSOR HEAT AUTO
MOIST CTRL ON
SENSITIVITY NORM
LANGUAGE ENGLISH
The lowest operating temperature for zone 2 can be set here. The setting can be as low as -3.9°F (-20°C), or
OFF can be selected. OFF = no limit. To change the minimum cut-off temperature, press OK, turn the
encoder button to the desired value and confirm with OK.
Afterrun time, zone 1: An afterrun duration of between 0 and 18 hours can be set here. The system will
continue to provide heat for the specified time after the moisture/temperature signal has been eliminated by
a heating cycle. Use the encoder button to set the required afterrun time and press OK.
Afterrun time, zone 2: An afterrun duration of between 0 and 18 hours can be set here. Use the encoder
button to set the required afterrun time and press OK.
Zone 1 temperature can be calibrated here. With the ETOG-55 sensor, the temperature shown on the ETO2
display is always the core temperature of the sensor. For calibration, please see OFFSET CALIBRATION.
Zone 2 temperature can be calibrated here. With the ETOG-55 sensor, the temperature shown on the ETO2
display is always the core temperature of the sensor. For calibration, please see OFFSET CALIBRATION.
Outdoor temperature can be calibrated here. The temperature recorded by the ETF outdoor sensor can be
adjusted so that the exact temperature is displayed on ETO2. Measure the temperature beside the sensor
using a thermometer. Adjust the necessary offset using the encoder button. Press OK.
The minimum return water temperature can be set here. Set the required minimum temperature and press
OK.
This menu option is only available when hydronic heating is used.
The maximum supply water temperature can be set here. Set the required maximum temperature and press
OK.
This menu option is only available when hydronic heating is used.
SENSOR HEAT AUTO: When the temperature is below set point and moist is detected, sensor heat will be
activated. As soon at the relays are activated the sensor-heat is deactivated.
SENSOR HEAT ON: When the temperature is below set point and moist is detected, sensor heat will be
activated. The sensor-heat remains active as long as the relays are activated. Used under special conditions
or during extremely cold weather, Select ON and press OK.
Moisture control can be switched off here. If so, snow and ice melting will only be controlled by the set
temperature, see SET TEMP. Select OFF to switch off moisture control and press OK.
Note that energy consumption/costs will rise if moisture control is switched off.
Sensor sensitivity can be adjusted in 5 steps: MIN: e.g. for salted roads - LOW: e.g. for dirty snow - NORM:
e.g. for mixed snow conditions - HIGH: e.g. for white snow - MAX: e.g. for very pure snow or hoar frost. To
change sensitivity, press OK, turn the encoder button to the desired setting and confirm with OK.
Language information.
© 2013 OJ Electronics A/S
English / User Manual
17