CDTR236PL - Thermostat JUNG - Free user manual and instructions

Product Type	Thermostat
Brand	JUNG
Model	CDTR236PL
Dimensions (H x W x D)	80 mm x 80 mm x 30 mm
Weight	150 g
Power Supply	2 x AA batteries (1.5 V)
Display Type	LCD
Temperature Range	5 °C to 30 °C
Accuracy	±0.5 °C
Programmable	Yes, up to 4 time periods per day
Compatibility	Heating and cooling systems
Control Type	Touch buttons
Connectivity	None (standalone)
Mounting	Wall-mounted (flush or surface)
Protection Class	IP30
Operating Humidity	10% to 90% RH (non-condensing)
Energy Saving Mode	Yes, eco mode
Maintenance	Clean with a soft, dry cloth
Safety Features	Overheat protection, child lock
Spare Parts	Batteries, mounting screws
Repairability	User replaceable batteries
General Information	Manual available in multiple languages; free PDF download

Frequently Asked Questions - CDTR236PL JUNG

How do I install the CDTR236PL thermostat?

Installation is straightforward: mount the base to the wall using the included screws, connect the wires (if applicable), and attach the thermostat. For detailed steps, refer to the installation section of the manual.

How do I set the temperature?

Press the + or - buttons to adjust the desired temperature. The current setpoint will flash; press OK to confirm.

How do I program the weekly schedule?

Enter the programming menu by holding the Menu button for 3 seconds. Use the arrow keys to select the day and time period, then set the desired temperature. You can program up to 4 periods per day.

Why is my thermostat not turning on?

First, check that the batteries are installed correctly and have sufficient charge. If using wired power, ensure the circuit breaker is on. If the display remains blank, replace the batteries with new AA alkaline cells.

How do I reset the thermostat to factory settings?

Press and hold the Reset button (located on the side or back) for 10 seconds using a paper clip. All settings will be cleared and the device will restart.

What is the battery life?

With normal use, the batteries last approximately 1 year. A low battery icon will appear on the display when replacement is needed.

Can I use this thermostat with a heat pump?

The CDTR236PL is compatible with most heating and cooling systems, including heat pumps. Ensure the system type is set correctly in the configuration menu.

How do I clean the thermostat?

Use a soft, dry cloth to wipe the surface. Avoid using water, solvents, or abrasive cleaners. Never spray liquid directly onto the device.

Is there a child lock feature?

Yes, you can enable the child lock by pressing and holding the Lock button for 5 seconds. The display will show a lock icon. Repeat to unlock.

Where can I download the user manual?

The manual can be downloaded for free from notice-facile.com in PDF format. Select your language and provide your email to receive a translated version if needed.

USER MANUAL CDTR236PL JUNG

Room temperature controller

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

Exploded view diagram of a refrigerator with numbered parts for identification

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

10(4)A ERC WWJJ SUNG TR235U D237022500 AC230V~ L N L T T1A ↓ ↓ <0 ↑ ↑ Rf N

Fig.2: TR 231 U

10(4)A 5(2)A EAC WWJJ 328U TR238U DC37023800 AC230V~ L N L W N <θ RF

Fig.4: TR 236 U

AC1 AC2 AC2 10/4A 5/23A EHC WWJJ SUNG TR246U 24V~ 8246026100 AC1 AC1 AC2 AC2

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

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).

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

○ 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*

Healing

10 (4) A