OJ ETO2 Manuel D'instructions page 7

English / Instruction
REMOTE CONTROL (fig. 15):
The forced heat and standby functions can be remotely con-
trolled by wiring ETO2 to external buttons/relays (normally open).
Connect external standby button to terminals 33-34.
Connect external forced heat button to terminals 35-36.
TESTING SNOW MELTING SYSTEM
After completing installation and application setup, it is
recommended that the snow melting system is tested.
1. Adjust SET TEMP in the setup menu to max. temperature.
2. Pour some water onto the sensor (ETOG/ETOR).
3. The output relay for the heating cable in the zone concerned
should activate and ON should be indicated on the ETO2
display. Check that the heating cable becomes warm, check
the voltage if possible.
4. After testing, adjust SET TEMP back to the desired setting
(factory setting = +3.0°C / 37.4°F).
WIRING (fig. 16):
TERMINAL COLOUR CODE WIRING
N, L
1, 2
3, 4
5, 6
7, 8
11, 12 brown/green
13, 14 grey/pink
15, 16 yellow/white
17, 18 grey/pink
19, 20 yellow/white
21, 22
23, 24
25, 26
27, 28
6
Supply voltage, 115-240 V AC
50/60 Hz
Alarm relay (potential-free), max. 5 A
Output relay 1, 16 A (potential-free),
Heating cable 1 (zone 1) /
Primary pump
Output relay 2, 16 A (potential-free),
Heating cable 2 (zone 2) /
Secondary pump
Output relay 3, 16 A (potential-free),
Heating cable 3
Sensor heating 1+2, ETOG 1+2 and
ETOR 1+2
Temperature sensor, ETOG 1
Moisture sensor 1, ETOG 1/ETOR 1
Temperature sensor, ETOG 2
Moisture sensor 2, ETOG 2 /ETOR 2
3- or 4-way mixing valve, 0-10 V
3- or 4-way mixing valve, 24 V AC
24 V AC from external supply for 3-
or 4-way mixing valve
Supply water temperature sensor,
ETF-522
© 2013 OJ Electronics A/S
29, 30
31, 32
33, 34
35, 36
ETOR SENSOR WIRES :
Note that the pink and grey wires are not used.
Environment protection and recycling
Help protect the environment by disposing of the packaging and
redundant products in a responsible manner.
Product disposal
Products marked with this symbol must not be
disposed of along with household refuse, but must be
delivered to a waste collection centre in accordance
with current local regulations.
Figures
Fig. 1 Installation of ETOG ground sensor
1 Sensor
2 Installation plate
3 Heating element
Fig. 2 Installation of ETOR gutter sensor and ETF outdoor
sensor
1 Thermostat ETO2
2 Gutter sensor
3 Outdoor sensor
Fig. 3 1-zone electric heating with ETOG sensor
Fig. 4 1-zone electric heating with ETOR/ETF sensor
Fig. 5 2-zone electric heating (roof/ground)
Fig. 6 ETOG connection
Fig. 7 ETOR connection
Fig. 8 Heating cable connection, example
Fig. 9 2-stage electric heating control (Y/∆)
Fig. 10 Advanced 2-stage connection (Y/∆)
Fig. 11 1-zone hydronic heating control for control of supply
water temp. with mixing valve
Fig. 12 1- or 2-zone hydronic heating control, simple (same
application setup as 1- or 2-zone electric heating
control)
Fig. 13 Hydronic mixing valve connection
Fig. 14 Hydronic pump connection
Fig. 15 Connections for remote control of standby and forced
heat
Fig. 16 ETO2 controller, terminal overview
Type ETO2
Return water temperature sensor,
ETF-522
Outdoor temperature sensor, ETF
Standby, external input
Forced control heat, external input