Operating instructions
Room thermostat insert
Art. no. 1790RTR
ALBRECHT JUNG GMBH & CO. KG
Volmestraße 1
58579 Schalksmühle
GERMANY
Telefon: +49 2355 806-0
Telefax: +49 2355 806-204
kundencenter@jung.de
www.jung.de
24.08.2022
82400423 J0082400423
Room thermostat insert
Table of Contents
1 Safety instructions.............................................................................................................3
2 Intended use .....................................................................................................................3
3 Product characteristics......................................................................................................3
4 Information for electrically skilled persons ........................................................................3
5 Technical data...................................................................................................................5
6 Accessories.......................................................................................................................5
7 Warranty............................................................................................................................5
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Room thermostat insert
1 Safety instructions
Electrical devices may only be mounted and connected by electrically skilled
persons.
Serious injuries, fire or property damage possible. Please read and follow manual
fully.
Danger of electric shock. Always disconnect before carrying out work on the device
or load.
Danger of electric shock. A connected remote sensor is connected to mains potential. Only use the remote sensor listed under Accessories. Replace remote sensor
with damaged insulation immediately.
This manual is an integral part of the product, and must remain with the end customer.
2 Intended use
– Switching of electric underfloor heating systems and electrothermal valve
drives
– Operation with room thermostat cover from the systems LB management and
JUNG HOME
– Operation with KNX RF push-button
– Mounting in appliance box with dimensions according to DIN 49073
3 Product characteristics
– Output signal: pulse width modulation (PWM) or two-point control (on/off)
– Enables connection of a remote sensor (accessory)
– Input for switching to cooling mode
– TEST button for switching without cover (overheating protection: forced
switch-off after 60 minutes)
4 Information for electrically skilled persons
DANGER!
Mortal danger of electric shock.
Disconnect the device. Cover up live parts.
Connecting and fitting the device
Recommended installation height: 1.50 m.
When using the integrated temperature sensor of the cover: Do not mount
near sources of interference, such as electric cookers, refrigerators, draughts
or direct sunlight. This influences the temperature measurement of the cover.
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Room thermostat insert
Image1: Connection example of the insert
(1) Button
TEST
(2) Cover interface with LED
(3) Insert
(4) Remote sensor for external temperature measurement
(5) Electric underfloor heating or electrothermal valve drive
(6) Switching contact for switching to cooling mode (optional)
Image2: Terminal-specific cable cross-section
￭ Connect insert (3) according to the connection diagram (see figure 1). Note
clampable cable cross-sections (see figure 2).
￭ Optionally connecting external remote sensor (4) (accessory).
￭ Install insert in appliance box, device connection terminals must be at the bot-
tom.
￭ Attach the frame and the cover.
￭ Switch on mains voltage.
The load can be switched by briefly pressing the
TEST
button (1). LED (2)
lights up when the load is switched on.
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Room thermostat insert
If 230 V is applied to input C, cooling mode is active.
The insert works exclusively with the KNX RF push-button and room thermostat covers. All other covers are without function.
5 Technical data
Rated voltage AC 230 V ~
Mains frequency 50 / 60 Hz
Switching current max. 16 A (AC1)
Standby load depending on the cover approx. 0.1 ... 0.5W
Connected load max. 3600 W
Ambient temperature -5 ... +45 °C
6 Accessories
External sensor Art. no. FF7.8
External temperature sensor Art. no. FFNTC
Thermal valve drive 230 V Art. no. TSA230NCWW
7 Warranty
The warranty is provided in accordance with statutory requirements via the specialist
trade.
ALBRECHT JUNG GMBH & CO. KG
Volmestraße 1
58579 Schalksmühle
GERMANY
Telefon: +49 2355 806-0
Telefax: +49 2355 806-204
kundencenter@jung.de
www.jung.de
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