Startup - OJ ETO2 Manuel D'instructions

English / User Manual
In hydronic mode, the supply sensor maintains the required supply water temperature while the system is active. When heat is
demanded, both the circulation and main pumps are activated and the valve is opened 20% for 1 minute to let the system stabilise.
When there is no need for ice or snow melting, the system activates the circulation pump for 1 minute every 15 minutes to check
whether the return water temperature has dropped below the required "idle temp." If this is the case, the system fully activates to
increase the return water temperature to the required level.

STARTUP

When ETO2 is switched on for the first time, Celsius or Fahrenheit must be selected. Turn the encoder button
SELECT SCALE:
until the required temperature scale is highlighted. Then accept the selection by pressing the encoder button.
CELSIUS
FAHRENHEIT
SENSOR 1 is shown on the display, allowing the type of sensor connected for input 1 to be selected:
SENSOR 1:
ETOG : Ground sensor
ETOG
ETOR : Gutter sensor + outdoor sensor
ETOR
Then accept the selection by pressing the encoder button.
SENSOR 2 is then shown on the display, allowing the type of sensor connected for input 2 to be selected. If no
SENSOR 2:
sensor is connected to input 2, OFF must be selected.
OFF
ETOG
ETOR
Select ETF if an ETF outdoor sensor is connected to terminals 31-32.
OUTDOOR SENSOR:
If no ETF sensor is connected, select OFF. Then accept the selection by pressing the encoder button.
OFF
ETF
Select the application type by turning the encoder button and pressing OK.
APPLICATION:
ELECTRIC 1-ZONE : 1-zone electric heating control. Note: also used for simple hydronic. Fig. 12
ELECTRIC 1-ZONE
ELECTRIC 2-ZONE : 2-zone electrical heating control. Note: also used for simple hydronic. Fig. 12.
ELECTRIC 2-ZONE
ELECTRIC 2-STAGE : Advanced 2-stage electric heating control (Y/Δ) of 1 zone. Fig. 10
ELECTRIC 2-STAGE
HYDRONIC
HYDRONIC : 1-zone hydronic heating control with supply water control. Fig. 11
Select the appropriate option and press OK. The system is now set up, and will begin operating fully automatically in accordance with
the pre-configured standard program, see FACTORY SETTINGS. Alternative settings can also be made, see SETTINGS.
Status and afterrun data for zones 1 and 2 are now shown on the display.
ZONE 1 HEAT OFF
ZONE 2 HEAT OFF
AFTERRUN 1 0.00
AFTERRUN 2 0.00
STANDBY OFF
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© 2013 OJ Electronics A/S
Type ETO2