Manual Sygonix TX 2 (page 4 of 8) (English, German, Dutch, French)

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The home technology brand for the entire house. More information at www.sygonix.com

These operating instructions are a publication by Sygonix GmbH, Nordring 98a, 90409 Nürnberg (www.sygonix.com).

All rights including translation reserved. Reproduction by any method, e.g. photocopy, microﬁ lming, or the capture

in electronic data processing systems require the prior written approval by the editor. Reprinting, also in part, is

prohibited. These operating instructions represent the technical status at the time of printing. Changes in techno-

Nr. 33988Q - Version 11/12Legal notice

Next attach the two wires of the external sensor to the screw clips. The polarity is not

important here.

Finally, insert the two-poled screw clips back onto the contact pin.

Place the connecting line to the external sensor in a suitable way: place the sensor

according to your needs (for example, for in-ﬂ oor heating near the ground).

• The wall mounting plate can be mounted directly on a ﬂ ush-type box via the two

fastening holes using two screws (hole/screw distance 60 mm).

Depending on the surface, the wall mounting plate can be fastened to the wall using

suitable screws or dowels.

Pay attention when drilling and tightening the screws that no cable or pipes

are damaged!

Prior to the installation, feed the mains cable and the connection cables through the

hole of the wall mounting plate towards the heater.

• Connect the mains cable to the connectors “L” (phase, brown cable) and “N” (neutral

wire, blue cable).

• Connect the mains cable for the heating device or air-condi-

tioning unit to the screw terminal “NO”, “COM” or “NC”. The

relay is a ﬂ oating contact relay.

For correct wiring and how the wiring should be done, pay

attention to the maximum contact load capacity, see sec-

tion “Technical Data”, and to the operating instructions of

the device that you wish to control via the thermostat.

“NC” Normally closed contact (break contact) (NC = “normally closed” = in quies-

cent state, the contact is closed)

“NO” Normally open contact (make contact) (NO = “normally open” = in quiescent

state, the contact is open)

“COM” Centre contact

• Place the thermostat on the wall mounting plate and fasten it by using the screws

that you removed before.

Check that the thermostat is ﬁ rmly and securely attached to the wall mounting

plate.

• Switch on the mains voltage again. All display segments appear brieﬂ y in the LC dis-

play. Afterwards, the thermostat is operational.

Controls

1 LC display

2 Recessed Reset button for a reset in the

event of malfunctions

3 Sliding switch for switching between heat-

ing mode (“HEAT”) and cooling mode

(“COOL”)

4 Sliding switch for function selection

“OFF” = switched off

“NORMAL” = normal operating mode

“NIGHT” = set-back temperature

5 Rotary knob for temperature setting

On the back of the thermostat there is another sliding switch in a concealed position,

which can be used to select the set-back temperature (night set-back) for the switch

position “NIGHT” (2°C or 5°C).

Function

Heating or cooling mode

Depending on whether a heating or cooling device is connected, the sliding switch

must be moved to the corresponding position (“HEAT” = heating device, “COOL” = cool-

ing device). The display shows a corresponding message.

Function selection

The required operating mode of the thermostat can be selected with the lower sliding

switch.

“OFF” Thermostat is switched off

“NORMAL” Normal operation

The temperature selected via the rotary knob will be maintained by

means of the heating or cooling device connected.

“NIGHT” Set-back temperature (overnight temperature reduction)

In this switch position the temperature selected via the rotary knob will

be reduced (with cooling mode: temperature will be increased). You can

switch between a reduction of temperature (for cooling mode: tempera-

ture increase) by 2°C or 5°C using the sliding switch on the back of the

device.

Thus, the switch position “NIGHT” can be chosen, for example to save

energy.

Setting the temperature

Use the control knob to set the desired temperature. If the relay is activated, “ON”

(= switched on) will be shown in the display.

Example: The thermostat is used for the operation of a heater. The room tempera-

ture is +20 °C. You wish to have a temperature of +25 °C.

Move the rotary knob so that the arrow marker is at position “25”.

The relay switches on (connectors “COM” and “NO” are connected), “ON”

appears in the LC display.

At the temperature of +25.5 °C (preset temperature value plus switching

temperature difference) the relay will be deactivated.

If the temperature drops below +24.5 °C (preset temperature value minus

switching temperature difference), the relay will be activated again.

The switching temperature difference of 0.5 °C prevents the connected heating or cool-

ing device from being turned on or off too many times.

Tro u b les h o oti n g

The temperature variation in the room is very high (approx. 5 - 8 °C)

• During the connection of the thermostat, the neutral wire and the phase have been

mixed up.

The control knob must be set higher or lower than the desired room temperature.

• During the connection of the thermostat, the neutral wire and the phase have been

mixed up.

• The heating or cooling device used is too small for the size of the room.

• The thermostat is affected by external heat (e.g. solar irradiation, proximity to heat-

ing devices or electrical devices).

• The thermostat is mounted at a wrong location, e.g. behind a curtain, next to a door

or on an exterior wall of the room.

The temperature setting has no impact

• The thermostat or the switching contact is dirty. Switch off the mains voltage and

carefully clean the thermostat, e.g. with compressed air.

• Several thermostats were (e.g. thermostats of two rooms) connected in series.

Slow reaction to the temperature setting

• Depending on the insulation of the building, the change in the room temperature

may take longer.

• Underﬂ oor heating also reacts very slowly to the temperature setting.

Distorted characters in the LC display

• Brieﬂ y press the “RESET” key, e.g. using a tooth pick, to reset the thermostat.

Disposal

Dispose of an unserviceable product in accordance with the relevant statu-

tory regulations.

Technical Data

Operating voltage: 230 V/AC, 50 Hz

Contact load capacity 10(4) A

Switching temperature difference: 0.5 °C

Accuracy: +/-1 °C at +20 °C

Temperature range: +5 °C to +30 °C

Ambient air humidity: 0 - 95% relative air humidity, non-condensing

Overnight temperature reduction: yes (switchable between 2 °C and 5 ° C)

Heating/cooling mode: switchable

RESET

COOL HEAT

NIGHT OFF NORMAL

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Sygonix TX 2 Manual

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