OR30 OT - Thermostat BOSCH - Free user manual and instructions

Product Type	Room Thermostat
Model	OR30 OT
Brand	Bosch
Power Supply	2 x AA batteries (not included)
Battery Life	Up to 1 year
Display	LCD screen with backlight
Dimensions (W x H x D)	100 x 100 x 30 mm
Weight	200 g
Mounting	Wall-mounted (screws and plugs included)
Compatibility	Most gas, oil, and electric heating systems (24V)
Programmable	Yes, 7-day programmable with up to 6 time periods per day
Temperature Range	5°C to 35°C (settable)
Accuracy	±0.5°C
Frost Protection	Yes, automatic at 5°C
Holiday Mode	Yes, with adjustable duration
Child Lock	Yes, keypad lock function
Open Window Detection	Yes, automatic shutoff
IP Rating	IP30
Cleaning	Wipe with a dry, soft cloth
Replacement Parts	Batteries (AA), wall plugs

Frequently Asked Questions - OR30 OT BOSCH

How do I install the OR30 OT thermostat?

First, turn off power to your heating system. Remove the old thermostat and label wires. Mount the new backplate using provided screws and plugs. Connect wires to terminals (consult manual for wiring diagram). Attach the thermostat unit and insert batteries. Then, configure settings via the display.

What batteries does the OR30 OT use?

It uses two AA alkaline batteries (1.5V). Do not use rechargeable batteries as they may cause incorrect operation.

How to program the thermostat for a weekly schedule?

Press the Menu button, navigate to Program. Set your desired temperature and time for each day. You can copy settings from one day to another. Confirm with OK.

Why is my thermostat not turning on?

Check that batteries are inserted correctly with proper polarity. Replace with new AA batteries. Ensure the display contrast is not set too low. If still off, remove batteries, wait 10 seconds, and reinsert.

How to set a temporary temperature override?

Press the + or - buttons to adjust the temperature. The override will last until the next programmed time period. To cancel, press Cancel or switch to Auto mode.

What is the holiday mode and how to use it?

Holiday mode allows you to set a constant low temperature while away. Press Menu, select Holiday, set the return date and temperature. The thermostat will maintain that temperature until the date.

How do I clean the thermostat?

Turn off power and remove batteries. Wipe the surface with a dry, soft, lint-free cloth. Do not use water, solvents, or abrasive cleaners. Reinsert batteries and restore power.

The display shows 'Err' or 'E1'. What does it mean?

Error codes indicate sensor or wiring issues. Try replacing batteries first. If persists, check that sensor wires are not damaged. Consult the troubleshooting section of the manual or contact Bosch support.

Can I use the OR30 OT with a heat pump?

Yes, the thermostat is compatible with heat pumps that use a 24V control signal. Ensure your heat pump's wiring matches the thermostat terminals. Consult a professional for installation.

How do I reset the thermostat to factory settings?

Press and hold the Menu button for 10 seconds until the display resets. Alternatively, remove batteries, wait 1 minute, and reinsert. All programmed schedules will be erased.

USER MANUAL OR30 OT BOSCH

8 733 201 137-00.10

Wall Hung Boiler Room Thermostat

OR30 OT Thermostat

BOSCH

Operating Instruction

Contents

1 Symbols and safety precautions .... 3

1.1 Key to symbols 3 1.2 Safety instructions 4

2 Delivery scope 5

3 Product instruction 6

3.1 Proper use 6 3.2 Technical parameters 6 3.3 Accessories 6 3.4 Main functions and features 7 3.5 Cleaning 7

4 Product description 8

5 Installation 9

5.1 Installation instructions 9 5.2 Installation of room thermostat 9 5.3 Installation steps 10

6 Operation instructions 14

6.1 Temperature calibration 14

7 Applicable model 15

1 Symbols and safety precautions

1.1 Key to symbols

Warnings

Warnings in this document are identified by a warning triangle printed against a grey background. Keywords at the start of a warning indicate the type and seriousness of the ensuing risk if measures to prevent the risk are not taken.

The following keywords are defined and can be used in this document:

• NOTICE indicates a situation that could result in damage to property or equipment.
• CAUTION indicates a situation that could result in minor to medium injury.
• WARNING indicates a situation that could result in severe injury or death.
• DANGER indicates a situation that will result in severe injury or death.

Important information

This symbol indicates important information where there is no risk to people or property.

Additional symbols

Symbol Explanation

▶ Step in an action sequence

→ Cross-reference to another part of the document

- List entry

- List entry (second level)

Table 1

1.2 Safety instructions

General safety instructions

▶ Follow the manual to ensure complete functionality. ▶ Install and use heaters and other accessories according to the manual. ▶ Accessories can only be installed by an authorized installer. ▶ The accessories must not be connected to a power supply of 220~240V. ▶ Before installing the accessories: Interrupt the power supply of heaters and other members of the bus (220~240V AC). ▶ Inform the working method of the accessories and guide customers to operate. ▶ The heater is switched on when freezing danger occurs, and comply with anti-freezing tips.

Damage caused by operational errors

Operational errors may cause personal injury and/or property damage.

▶ Ensure that children do not operate and/or play with the equipment under unattended circumstances. ▶ Ensure that the equipment can only be touched by personnel who can operate the equipment correctly.

2 Delivery scope

Fig. 1

[1] OT controller [2] Installation package (screws...) [3] Manual instruction

3 Product instruction

OR30 room thermostat has the advantages of easy operation and practicality.

3.1 Proper use

Please carefully read this manual before using, and operate according to requirements specified in the manual.

Error conditions please refer to error code introduction of wall hung boiler.

3.2 Technical parameters

Voltage 3V±10%
Temperature range 5~30°C
Measure precision ±1°C
Dimensions	86 × 86 × 28mm
Ambient temperature -5°C~40°C
Load current 0.5A~125VAC 2A~30VDC
Material & Color Ivory ABS

Table 2

3.3 Accessories

• Manual instruction
• Installation package
• Screws*2
• Anchors*2

3.4 Main functions and features

• Set temperature by knob
• Display current temperature
• Boiler working condition • Memory function in case of power-down
• Fault display function
• Reset function for boiler fault
• Temperature correction
• Check the CH and DHW water temperature
• Set the parameter of CH and DHW water • Control the flame so as to make the room temperature comfortable

3.5 Cleaning

▶ Use wet cleaning cloth to wipe the housing of controller. Must not use irritant or corrosive detergent.

4 Product description

Fig. 2

[1] Operation condition

[2] Room temperature icon

[3] Up \Exit \Reset

[4] Down\menu

[5] Temperature knob

[6] Current room temperature

[7] DHW (Domestic heating water)

[8] CH (heating water)

[9] Anti-freezing

5 Installation

5.1 Installation instructions

• Isolate the appliance from the electrical supply. - Avoid installing the thermostat close to fridge, radiator, kitchen, computer, window, doorway or other over-cooling, over-heating and temperature changed frequently areas. The best position to install the thermostat is a dry place which can precisely reflect room temperature, and has low interference. - Ambient temperature: -5°C to 40°C - Relative humidity: Max RH 85% (23 °C) • Altitude: Less than 2000 Meter

5.2 Installation of room thermostat

The standard mounting holes are at the back of thermostat, and user can install the thermostat on the wall with them. Open the thermostat and install the thermostat according to the letters given by the follow picture.

Fig. 3

10 Installation

5.3 Installation steps

▶ Finger-tighten the middle part of three edges of back cover, as shown in the figure, to make the three edges recessed, and then remove back cover (see Fig. 4).

Fig. 4

▶ Drill two installing holes on the wall, and push swell plastic button in holes. Use screws to fix back cover onto wall surface (see Fig. 5) (Distance between two holes is 60mm, please try to make uniform height).

Fig. 5

12 Installation

▶ Use a screwdriver to connect the OT cable to the product connector base, as shown in Fig. 6 (regardless of cable positive and negative electrodes).

Fig. 6

▶ Fix the product on the back cover, as shown in Fig. 7.

Fig. 7

6 Operation instructions

The OR30 room thermostat has the advantages of easy operation and practicality. Its functions are operated by two keys and a knob.

• Fault reset: Press the "UP" key to reset if a fault code occurs.
• Check CH/DHW temperature: Press the "DOWN" key to check the CH/DHW temperature, and then press the "UP" key to exit.
• Set target room temperature: Increase or decrease the room temperature by rotating the knob.
• Set the target temperature of DHW: Press the "DOWN" key twice to check the DHW temperature, then press "DOWN" and "UP" simultaneously to set the target temperature of DHW. Adjust the target point with the "DOWN" and "UP" keys. Press "DOWN" and "UP" once simultaneously to exit.
• Temperature calibration: Press "DOWN" and "UP" simultaneously for 5 seconds to start temperature calibration. The LCD shows the battery icon, and calibrate the temperature with the "DOWN" and "UP" keys. Press "DOWN" and "UP" simultaneously once to exit.
• Default reset: Press the "UP" key for 5 seconds until "LOD" blinks. Press any key to exit.
• The temperature displayed on the thermostat may differ from that of a thermograph. The test methods of a thermograph and a thermostat are different. In general conditions, the thermostat's temperature sensor is more precise than a thermograph. Due to differences in regions and environments, the thermostat may have a slight deviation. If this deviation is large (>5 °C), you can use "temperature calibration" to adjust (see part 6.1).

6.1 Temperature calibration

Due to regional and environmental differences, the thermostat may have a slight deviation. Users can adjust the temperature through “temperature calibration”.

▶ Press the up (P8) and down (P9) keys together to enter temperature correction, and the battery icon will flash on the LCD. ▶ Adjust the value using the “up (P8)” and “down (P9)” keys. If the temperature difference is not very obvious, this function is not recommended.

There is a 2 °C inaccuracy in household thermometers.

7 Applicable model

Boiler model Model No. Serials
Eurosmart MINI	L1P18 (WBN6000-16C)	7716482002
	N1P17 (WBN6000-15S)	7716482003
“New” Eurostar	L1P20-WBN6000 -18CRN S5500	0T1010044700023338
	N1P20-WBN6000 -18HRN S5500	0T1010044700023332
	L1P27-WBN6000 -24CRN S5500	0T1010044700023339
	N1P27-WBN6000 -24HRN S5500	0T1010044700023333
	L1P31-WBN6000 -28CRN S5500	0T1010044700023340
	N1P31-WBN6000 -28HRN S5500	0T1010044700023334

Table 3

Robert Bosch (Australia) Pty Ltd

Thermotechnology Division

1555 Centre Road

Clayton Victoria 3168

Australia

Phone: [phone]

Fax: [phone]

www.bosch-climate.com.au

New Zealand

Phone: [phone]

Fax: [phone]

www.bosch-climate.co.nz