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Ensto ECO16FRJ [13/32] Eco16fr dual mode thermostat

RAK47 / © Ensto 2017 RAK47 / © Ensto 2017

ECO16FR DUAL MODE THERMOSTAT

INSTALLATION AND OPERATING INSTRUCTION

ECO16FR thermostat is mounted as the cover of a 1-component mounting box or as a part of a multiple-

component instrument panel.

1. BEFORE INSTALLATION

1.1 Check that all the parts and tools needed for the installation are available. This package contains a

thermostat, an adjustment knob, a lid, a covering plate, an additional connector for earth wires, a sensor

cable and this installation instruction.

1.2 Check that the heating load is equivalent to the thermostat power endurance.

1.3 Check the insulation resistance and the circuit resistance of the heating load controlled by the ther-

mostat.

2. INSTALLATION, FIGURES 1, 2 AND 4

2.1 Place the sensor cable in a dry protective tube between the heating cables (oor heating solutions).

NOTE! Make sure that there is not water in the protective tube.

2.2 Connect the earth wires (PE) to the separate connector.

2.3 Connect the thermostat according to the gures 1 and 2. Connect the control of the temperature

change to the ΔT- marked connector. Any phase can be used to control the temperature change. The ther-

mostat has spring connectors and the wires should be stripped at the length of 9 mm. The conductors can

be disconnected from spring connectors by twisting and pulling at the same time. In oor or ceiling heat-

ing installations a residual circuit breaker has to be used according to the local installation regulations.

2.4 Mount the thermostat into the mounting box with screws.

2.5 Mount the thermostat lid, cover plate and adjustment knob. Cover the thermostat from potential dust

during construction.

3. START-UP AND OPERATION, FIGURES 3, 5 ... 9

3.1 Adjust the heating control mode with the adjustment screw E (gure 3). In the F mode (=oor) the

heating is controlled by oor temperature. The oor temperature setting is dened with the adjustment

knob G (gure 5). In the R mode (=room) the heating is controlled by the room temperature and the oor

sensor is not needed. The room temperature setting is dened with the adjustment knob G. When the

adjustment screw E is turned to F or R mode the blue signal light C blinks once to indicate the change of

the control mode. Between these two control modes the heating is controlled by the room temperature

and the position of the adjustment screw E denes the maximum temperature of the oor. If the tempera-

ture of the oor rises higher than the set value, the blue signal light C blinks four times in a minute for

warning and the load is switched o until the temperature is low enough. This control mode is designed

to protect sensitive oor surface materials, like parquet (gure 6). Most parquet manufacturers suggest a

maximum temperature of 27°C.

3.2 NOTE! The oor sensor only measures the temperature of concrete. Temperatures of the surface mate-

rials are usually about 5°C lower than the temperature of concrete so the limitation can be set to approxi-

mately +32°C. The limitation is recommended to be set as low as possible and raise the value afterwards

if needed. Each ooring material is unique so when an accurate temperature limit is needed the tempera-

ture should be checked by a separate thermometer.

3.3 Adjust the minimum temperature setting for the oor by the adjustment screw H if the adjustment

screw E is between F or R modes i.e. the thermostat is functioning as a dual mode thermostat (gure 6).

Note! The minimum temperature setting can be used only if the thermostat is in dual mode. If the mini-

mum and maximum settings are too closely spaced the thermostat indicates it by blinking the red (B) and

the blue (C) signal lights alternatively.

ENG

Ensto ECO16FRJ [13/32] Eco16fr dual mode thermostat

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