Ouellet ETO2 User Manual

Page 7

INS

TRUC

TION

Type ETO2

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

sElECT sCalE:

CElsIus

fahrEnhEIT

When ETO2 is switched on for the first time, Celsius or Fahrenheit must be selected. Turn the encoder button

until the required temperature scale is highlighted. Then accept the selection by pressing the encoder button.

sEnsOr 1:

ETOG

ETOr

SENSOR 1 is shown on the display, allowing the type of sensor connected for input 1 to be selected:

ETOG : Ground sensor

ETOR : Gutter sensor + outdoor sensor

Then accept the selection by pressing the encoder button.

sEnsOr 2:

Off

ETOG

ETOr

SENSOR 2 is then shown on the display, allowing the type of sensor connected for input 2 to be selected. If no

sensor is connected to input 2, OFF must be selected.

OuTdOOr sEnsOr:

Off

ETf

Select ETF if an ETF outdoor sensor is connected to terminals 31-32.

If no ETF sensor is connected, select OFF. Then accept the selection by pressing the encoder button.

aPPlICaTIOn:

ElECTrIC 1-ZOnE

ElECTrIC 2-ZOnE

ElECTrIC 2-sTaGE

hYdrOnIC

Select the application type by turning the encoder button and pressing OK.

ELECTRIC 1-ZONE : 1-zone electric heating control. Note: also used for simple hydronic. Fig. 12

ELECTRIC 2-ZONE : 2-zone electrical heating control. Note: also used for simple hydronic. Fig. 12.

ELECTRIC 2-STAGE : Advanced 2-stage electric heating control (Y/Δ) of 1 zone. Fig. 10

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.

ZOnE 1 hEaT

Off

ZOnE 2 hEaT

Off

afTErrun 1

0.00

afTErrun 2

0.00

sTandBY Off

Status and afterrun data for zones 1 and 2 are now shown on the display.

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