AutomatikCentret 57653F ETR2 OJ Microline Instructions

: June 8, 2024
: AutomatikCentret

Table of Contents

AutomatikCentret 57653F ETR2 OJ Microline
Product program
TECHNICAL DATA
SENSOR INSTALLATION
Thermostat installation
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AutomatikCentret 57653F ETR2 OJ Microline

Type ETR2 is an electronic thermostat for economical ice and snow melting on outdoor areas and in gutters. Ice forms due to a combination of low temperature and moisture. ETR2 detects temperature and moisture and the snow melting system will usually only be activated if snow or ice is present. ETR2 is suitable for controlling electric heating cables.

Product program

ETR2-1550 Thermostat.
ETOG-55 Ground sensor for detecting
temperature and moisture.
ETOR-55 Gutter sensor for detecting moisture.
ETOG-56/ ETOK-1 Embedded ground sensor for
detecting temperature and moisture.
ETF-744/99 Outdoor sensor for detecting temperature.

CE MARKING
OJ Electronics A/S hereby declares that the product is manufactured in accordance with Council Directive 89/336/EEC on electromagnetic compatibility (and subsequent amendments) and Council Directive 2006/95/ EEC on electrical equipment designed for use within certain voltage limits.

Applied standards

EN 61000-6-3, EN 61000-6-2, EN 60730-1 and EN 60730-2-9.

The product may only be used if the complete installation complies with current directives. The product carries a manufacturer’s warranty if installed in accordance with these instructions and current regulations. If the product has been damaged in any way, e.g. during transport, it must be inspected and checked by authorised personnel before being connected to the power supply.

WARNING – Important safety instructions.
Always disconnect the power supply before performing installation or maintenance work on this control unit or any of the components connected to it. This control unit and the components connected to it should only be installed by qualified electricians. Electrical installation must be performed in accordance with applicable local regulations.

TECHNICAL DATA

Thermostat ETR2-1550

Supply voltage ………..230 V AC ±10 %, 50-60 Hz
Output relay (NO) …………………………………….16 A
On/off differential …………………………………. 0.3 °C
Temperature Setting for Startup ………….0/+10 °C
Run-on time …………………………………….0-5 hours
Ambient temperature …………………….. -10/+50 °C
Ambient air humidity …………………………10-95 %
Enclosure rating ………………………. IP 20 / Nema 1
Power consumption ………………………………..3 VA
Weight ……………………………………………….200 g
Dimensions H/W/D 86/52/59 mm

Ground sensor type ETOG-55

Designed to be embedded in outdoor areas.
Detection …………………Moisture and temperature
Mounting …………………………………..Outdoor area
Enclosure rating ……………………………………..IP 68
Ambient temperature …………………….. -50/+70 °C
Dimensions ……………………………….H32, Ø60 mm

Embedded ground sensor – ETOG-56/ETOK-1

Designed to be embedded in outdoor surfaces.
Detection ………………..Moisture and temperature
Mounting ……………………………..Outdoor surface
Housing ……………………………………………….IP 68
Ambient temperature ……………………. -50/+70 °C
Dimensions, sensor H/Ø) ………………..32/60 mm
Dimensions, tube (H/Ø) ……………….78/63.5 mm

Gutter sensor type ETOR-55

Designed to be mounted in gutter or downpipe.
Is used together with outdoor sensor type ETF.
Detection ………………………………………… Moisture
Mounting ………………………….Gutter or downpipe
Enclosure rating ……………………………………..IP 68
Ambient temperature …………………….. -50/+70 °C
Dimensions H/W/D ……………………105/30/13 mm

Outdoor sensor type ETF-744/99

Detection ……………………………………Temperature
Mounting ……………………………………………….Wall
Ambient temperature …………………….. -50/+70 °C
Dimensions H/W/D ……………………..86/45/35 mm

NOTE: The snow and ice melting system is deactivated in the event of sensor failure – regardless of sensor type.

SENSOR INSTALLATION

Ground sensor ETOG, fig. 1 + 3

For installation in outdoor surfaces where ice and snow are a regular problem. The sensor must be embedded horizontally with its top flush with the surrounding surface. The sensor cable must be installed in accordance with current regulations.
NOTE: We strongly recommend the use of cable pipes in order to protect the sensor cable. Detailed installation instructions are supplied with the sensor.

With ETOG-55, use the accompanying installation plate.
With ETOG-56, use the ETOK-1 mounting kit.

NOTE: Remove the installation plate from ETOG-55 before first start-up.

Gutter sensor ETOR, fig. 2 + 4

For installation in a gutter or downpipe on the sunny side of the building. It is important to ensure that the sensor contact elements face against the flow of melt water. Be aware that the pink and grey wire must not be installed. Detailed installation instructions are supplied with the sensor.

Outdoor sensor ETF, fig. 2 + 4

For use in conjunction with gutter sensor ETOR. Can also be used separately for the detection of temperature alone. The sensor should be mounted on the wall under the eaves on the north side of the building.

Sensor cables
ETOG and ETOR are supplied with 10 m cable, which can be extended up to approx. 200 m using standard installation cable: 6×1.5 mm² for ETOG and 4×1.5 mm² for ETOR. The ETF cable can be up to approx. 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

Thermostat installation

The thermostat should be DIN-rail mounted in an approved panel. Connect supply voltage to terminals 1 and 2. Electrical installation must be performed in accordance with applicable local regulations.

Setup
ETR2 can be set up for ice and snow melting on outdoor areas in conjunction with ETOG sensors or in gutters/downpipes in conjunction with ETOR and ETF sensors.

Electric heating control with ETOG (fig. 5 + 7)

Connect 1 ETOG sensor to terminals 8-14. Connect heating cable to output relay according to fig. 7.

Electric heating control with ETOR + ETF (fig. 6 + 7)

Connect 1 ETOR sensor to terminals 10-14. Note that the pink and grey wires must not be connected. Connect 1 ETF sensor to terminals 8 and 9. Connect heating cable to output relay according to fig. 7.

How to program the sensitivity

Turn off the power to the ETR2.
Connect a wire between terminals 8 and 9
Connect a wire between terminals 10 and 11
Turn the TIME SET knob to max. (constantly on).
Turn the TEMP SET knob to max. (10).
Turn on the power. The LED for ON will flash. a. The LEDs for TEMP, MOIST and RELAY will light constantly, indicating the factory setting for sensitivity level.
Program the sensitivity level by turning the TIME SET knob from 1-5 (1=min., 2=low, 3=normal/factory setting, 4=high, 5=max.). a. The combination of LEDs will indicate the programmed sensitivity (see matrix below).
Turn off the power and select the required settings for temperature (TEMP SET) and after-run time (TIME SET).
Remove the wires connecting terminals 8 and 9 and terminals 10 and 11.
Install the temperature sensor and moisture sensor as normal.

Turn the TIME SET knob from 1-5. The combination of LEDs will indicate the programmed sensitivity

TIME SET

knob

| Sensitivity level| LED for ”TEMP”| LED for ”MOIST”| LED for ”RELAY”
---|---|---|---|---
1| Minimum| ON| OFF| OFF
2| Low| ON| ON| OFF
3| Factory Setting| ON| ON| ON
4| High| OFF| ON| ON
5| Maximum| OFF| OFF| ON

WIRING (fig. 3) Terminal Colour code Wiring

1, 2| | Supply voltage,

230 V AC 50/60 Hz

---|---|---
5, 7| | Output relay,

16 A (fig.7)

8, 9| grey/pink

(1/2)

| Temperature sensor 1,

ETOG or ETF

10, 11| yellow/white

(5/6)

| Moisture sensor,

ETOG or ETOR

13, 14| brown/green

(3/4)

| Sensor heating

ETOG or ETOR

Note that the pink and grey wires are not used with an ETOR sensor.

OJ cannot be held liable for any errors in catalogues, brochures or other printed material. OJ reserves the right to alter its products without notice. This also applies to products already on order, provided that such alterations can be made without requiring subsequent changes in specifications already agreed. All trademarks in this material are the property of the respective companies. OJ and the OJ logotype are trademarks of OJ Electronics A/S. All rights reserved

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