Ouellet ETO2 - Manual (Page 4)

© 2013 OJ Electronics A/S 5
Type ETO2
(25 m) cable, which can be extended up to approx. 656 ft - (200
m) using standard installation cable: 6x16 AWG (6x1.5 mm² ) for
ETOG and 4x16 AWG (4x1.5 mm² ) for ETOR. The ETF cable can
be extended up to approx. 164 ft (50 m) in length. Sensor cables
must be installed in accordance with current regulations. They
must never be installed parallel to power cables as electrical
interference may distort the sensor signal.
ETO2:
The unit is intended to be DIN-rail mounted in an approved
panel.
Wall mounting:
For USA and Canada: The thermostat can be wall-mounted in a
specially designed and UL-approved metal box (accessory).
The accompanying plastic cover can be used for wall mounting
in an indoor area.
Connect supply voltage to terminals N and L. All electrical and
mechanical installation must be performed in accordance with
applicable local regulations.
sETuP, ElECTrIC hEaTInG
• 1-zone electric heating control with ETOG (figs 3+6):
Connect 1 or 2 ETOG sensors to terminals 11-20.
Connect heating cable to potential-free output relays 1, 2 and
3 according to fig. 8.
• 1-zone electric heating control with ETOr + ETf
(figs 4+7):
Connect 1 or 2 ETOR sensors to terminals 11-20.
Note that the pink and grey wires are not used.
Connect 1 ETF sensor to terminals 31-32.
Connect heating cable to potential-free output relays 1, 2 and
3 according to fig. 8.
• 2-zone electric heating control with ETOG (figs 3+6):
Connect 2 ETOG sensors to terminals 11-20.
Connect heating cable for zone 1 to potential-free output
relay 1 according to fig. 8.
Connect heating cable for zone 2 to potential-free output
relay 2 according to fig. 8.
• 2-zone electric heating control with ETOr (figs 4+7):
Connect 2 ETOR sensors to terminals 11-20.
Note that the pink and grey wires are not used.
Connect heating cable for zone 1 to potential-free output
relay 1 according to fig. 8.
Connect heating cable for zone 2 to potential-free output
relay 2 according to fig. 8.
• 2-zone electric heating control with ETOG and ETOr
(figs 5+6+7):
Connect 1 ETOG sensor to terminals 11-16 as sensor 1.
Connect 1 ETOR sensor to terminals 17-20 as sensor 2.
Note that the pink and grey wires are not used.
Connect heating cable for zone 1 (ground) to potential-free
output relay 1 according to fig. 8.
Connect heating cable for zone 2 (roof) to potential-free
output relay 2 according to fig. 8.
• 1-zone electric heating control with output control
(Y/∆) (figs 6+9+10):
Advanced 2-stage control with ETOG. 1/3 power on heating
cables in afterrun.
Connect 1 or 2 ETOG sensors to terminals 11-20.
Connect external contactor/relays to potential-free output
relays 1, 2 and 3 according to fig. 10.
sETuP, hYdrOnIC hEaTInG
• 1-zone hydronic heating control for controling the supply
water temp. with mixing valve (figs 6+11+13+16):
Connect 1 or 2 ETOG sensors to terminals 11-20 (fig. 6).
Connect supply voltage (24 V AC) for mixing valve to
terminals 25-26 (fig. 13).
Connect mixing valve to terminals 21-24 (fig. 13).
Connect ETF-522 supply and return sensors to terminals
27-30 (fig. 16).
Connect primary pump to potential-free output relay 1
according to fig. 14.
Connect secondary pump to potential-free output relay 2
according to fig. 14.
• 1- or 2-zone hydronic heating control, simple
(figs 3+6+12):
Connect 1 or 2 ETOG sensors to terminals 11-20 (fig. 6).
Connect circulation pump for zone 1 to potential-free output
relay 1 according to fig. 14.
If zone 2 is used, connect circulation pump for zone 2 to
potential-free output relay 2 according to fig. 14.
Same application setup as for 1- or 2-zone electric heating
control, see User Manual, Startup.
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