GOTR23 - Temperature regulator JUNG - Free user manual and instructions

Product Type	Room Temperature Controller
Brand	JUNG
Model Series	GOTR23 (TR 231 U, TR 241 U, TR 236 U, TR 246 U)
Power Supply	AC 230 V~ (TR 231 U/236 U) or AC 24 V~ (TR 241 U/246 U)
Nominal Current	10 (4) A for heating; 5 (2) A for cooling (changeover models)
Temperature Range	5 °C to 30 °C
Switching Principle	1-pole break contact (TR 231/241) or 1-pole changeover contact (TR 236/246)
Differential Temperature	Approx. 0.5 K
Temperature Reduction	Approx. 4 K (TR 231/241 only)
ON/OFF Switch	Yes with status LED (TR 231/241); No (TR 236/246)
Neutral Conductor Required	Yes
Mounting	In switch box per DIN 49073, height approx. 1.5 m
Conductor Cross-section	1 to 2.5 mm² solid conductor
Ambient Humidity	Max 95% relative, no condensation
Safety	Disconnect power before working; only for skilled electricians
Maintenance	Clean with dry cloth; avoid moisture
Spare Parts	Inserts, covers, special knob available
Accessories	Inserts: TR 231 U, TR 241 U, TR 236 U, TR 246 U; Covers: TR 231 PL, TR 241 PL, TR 236 PL, TR 246 PL; Special knob: MS TR 231
Energy Class	I = 1% (TR 231/241)
Operating Instructions	Integral part of product, must remain with end customer

Frequently Asked Questions - GOTR23 JUNG

How do I install the JUNG GOTR23 temperature regulator?

Installation must be carried out by a skilled electrician. First, disconnect power. Mount the thermostat in a switch box per DIN 49073 at a height of about 1.5 m. Connect according to the wiring diagram, ensuring the neutral conductor (N) is connected. Clip on the rocker, center plate, and setting knob.

What is the temperature range of this thermostat?

The factory-set temperature range is 5 °C to 30 °C. You can restrict this range using the two adjustment rings inside the setting knob.

Can I limit the temperature setting range?

Yes. Remove the setting knob and adjust the red ring for maximum limit and blue ring for minimum limit. Use a pen tip to rotate the rings. The pointer on the knob should be centered in the new range.

What do the different model numbers mean?

Models TR 231 U and TR 241 U have an ON/OFF switch and a break contact. Models TR 236 U and TR 246 U have a changeover contact without a switch. The voltage differs: 230 V (TR 231 U, TR 236 U) and 24 V (TR 241 U, TR 246 U).

Does this thermostat require a neutral wire?

Yes, a neutral conductor is required. It must be connected to terminal N to avoid temperature fluctuations.

How does the night temperature reduction work?

Models TR 231 U and TR 241 U have a separate terminal for temperature reduction of approximately 4 K (e.g., during night time). Connect a clock signal to terminal ① to activate this function.

What is the switching differential?

The differential of functioning temperature is approximately 0.5 K. This means the thermostat switches on or off within a 0.5 K band around the set temperature.

How do I clean the thermostat?

Clean the thermostat with a dry cloth only. Avoid moisture and condensation. Do not use any cleaning agents or liquids.

What is the maximum load?

For break contact models (TR 231/241): nominal current 10 A (resistive) or 4 A (inductive). For changeover models (TR 236/246): heating 10 A (4 A inductive), cooling 5 A (2 A inductive).

Where should I mount the thermostat?

Mount on an internal wall opposite heat sources, at about 1.5 m height. Avoid outside walls, direct sunlight, draughts, and heat-emitting devices. Do not install near dimmers.

USER MANUAL GOTR23 JUNG

Room temperature controller

GB

Ref.-no.: TR .. 231 ..

TR .. 241 ..

TR .. 236 ..

TR .. 246 ..

Operating instructions

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 devise or load.

A relative air humidity of max. 95% may not be exceeded. Avoid any moisture condensation.

These instructions are an integral part of the product, and must remain with the end customer.

2 Structure of the device

The room temperature controller is used to regulate the temperature in closed rooms such as flats, schools, function suites, workshops, etc.

Product characteristics

Neutral conductor required

TR 231 U / TR 241 U:

• Separate terminal for temperature reduction of 5 K (e.g. during night time)
• ON/OFF switch with status LED

- When set temperature is reached the contact opens up.

TR 236 U / TR 246 U:

• No OFF-position
• Without switch and control LED
• When set temperature is reached the NO/NC contact switches over.

4 Information for electrically skilled persons

Installation and electrical connection

DANGER

Electric shock from touching live parts in the installation environment.

An electric shock can be fatal.

Before working on the device, disconnect the power and cover live parts in the area.

• Mount the room temperature controller on an internal wall opposite the heat source if possible.
• Do not mount the room temperature controller on outside walls.
• Avoid draughts from windows and doors.
• Ensure that the normal air circulation in the room reaches the controller without any obstacles.
• External heat sources influence the accuracy of the controller. Avoid direct sunlight and do not place heat-emitting devices in the vicinity of the room temperature controller (heaters, lamps, etc.).
• Dimmers also generate heat.
  If a controller is installed in a common switch frame with a dimmer, the distance between them should be as great as possible. When arranging them vertically, the controller must be installed underneath the dimmer.

Connection

Fig. 2: TR 231 U

Fig. 3: TR 241 U

Fig. 4: TR 236 U

Fig. 5: TR 246 U

- Carry out the electrical connection according to the respective wiring diagram.

i Ensure that the neutral conductor N is connected to terminal N. Considerable fluctuations in temperature may otherwise occur.

Conductor cross-section: 1 to 2.5 mm² solid conductor

Symbols used in the wiring diagram

L = L conductor

N = N-conductor

AC1 = 24 V power supply

AC2

① = Connection for clock signal to reduce temperature

= Heating

※ = Cooling

RF = Resistor for thermal feedback

TA = Resistor for night reduction of room temperature

Installation

- Mount room temperature controller in a switch box in accordance with DIN 49073.

Mounting height: approx. 1.5 m above the floor

- Clip the rocker (4) on the switch in the flush insert. (fig. 1)

- Place the center plate together with the frame on the flush insert. The center plate must snap in place in the top left of the housing base.

• Tighten the screw (5). (fig. 1)

- Clip on the setting knob (6). (fig. 1)

5 Operation

Restricting the temperature setting range

The temperature controller is set ex works to the maximum setting range of 5 °C to 30 °C.

Fig. 6: Temperature setting range

Two adjustment rings are located in the setting knob. You can use these rings to restrict the temperature setting range required e.g. between 8 °C and 23 °C.

Procedure:

- Select the temperature limits.

Example: min 8 °C, max. 23 °C

- Important!

First position the setting knob roughly in the centre of the required setting range.

Example: The centre point between 8 °C and 23 °C is approximately 15 °C.

- Now remove the setting knob.

- Set the red locating ring to the max. temperature limit.

Example: 23 °C

- Rotate anti-clockwise.

The numbers on the outer dial apply!

- Insert the tip of a pen in the hole and turn the red ring to the left until it reaches 23^ (max. scale).

Fig. 7: Temperature setting range max.

- Set the blue locating ring to the min. temperature limit.

Example: 8 °C

- Rotate clockwise.

The numbers on the inner dial apply.

- Insert the tip of a pen in the hole and turn the blue ring to the right until it reaches 8^ C (min. scale).

Fig. 8: Temperature setting range min.

- Clip on the setting knob.

The pointer must be roughly in the centre of the new setting range.

Example: approx. 15 °C

Scale for setting the temperature with dials

1 = approx. 5 °C

2 = approx. 10 °C

3 = approx. 15 °C

4 = approx. 20 °C

5 = approx. 25 °C

6 = approx. 30 °C

Symbols

O Off

I On

6 Technical data

TR 231 U / TR 241 U:

Switching principle 1-pole break contact

+ on/off switch

Temperature range 5 ... 30 °C

Nominal voltage

TR 231 U AC 230 V \~

TR 241 U AC 24 V \~

Nominal current* 10 (4) A

Differential of

functioning temperature approx. 0.5 K

Temperature reduction approx. 4 K

Energy class I = 1 %

The value in brackets indicates the inductive load at a cos φ of 0.6.

TR 236 U / TR 246 U:

Switching principle 1-pole change over contact

without switch

Temperature range 5 ... 30 °C

Nominal voltage

TR 236 U AC 230 V \~

TR 246 U AC 24 V \~

Nominal current*

Heating 10 (4) A

Cooling 5 (2) A

Differential of

functioning temperature approx. 0.5 K

* The value in brackets indicates the inductive load at a cos φ of 0.6.

7 Accessories

Inserts

TR 231 U

TR 241 U

TR 236 U

TR 246 U

Covers

.. TR 231 PL ..

.. TR 241 PL ..

.. TR 236 PL ..

.. TR 246 PL ..

Special knob

MS TR 231 ..

8 Warranty

The warranty follows about the specialty store in between the legal framework as provided for by law.