Stienen BRAVO TOUCH Climate Controller

Introduction

This manual provides comprehensive information for the operation and cleaning of the BRAVO TOUCH climate controller. It is intended for users and contains all necessary instructions. Please read all instructions and information carefully before operating the device. Warnings, important notes, and tips are marked with symbols.

The manual has been compiled with the utmost care. If you notice any errors, please provide feedback.

1.1 Symbol Definitions

• [!] High Voltage Symbol: Danger of electric shock! Danger to humans or animals.
• [!] Warning Symbol: Warning of danger to humans, animals, or equipment if procedures are not followed carefully.
• [!] Product Damage Symbol: Warning of product damage if procedures are not followed carefully.
• [No High-Pressure Washer Symbol]: Cleaning with a high-pressure washer is not permitted.
• [Recycling Symbol]: Separate collection (symbol for separate waste collection).
• [Info Symbol]: Note (general information or tips).
• [i] Additional Information Symbol: Additional details or explanations.
• [Example Symbol]: Example for practical application of the described function.
• [Calculation Example Symbol]: Calculation example (illustration by a sample calculation).
• [Manual Operation Symbol]: Manual operation of the device.
• [Tips Symbol]: Tips and suggestions (useful hints for optimizing use).
• [Screenshot Symbol]: Screenshot (illustration of the screen for clarity).
• [Application Note Symbol]: Application Note.

1.2 Customer Support

For questions, please contact your installer. Have all required information ready and always note the cause and circumstances of a fault. This avoids ambiguities and enables your installer to resolve the fault quickly and appropriately.

Safety Instructions and Warnings

Before operating the device, carefully read the general safety instructions in this chapter. Installation and troubleshooting of the device should only be carried out by a qualified installer in accordance with applicable guidelines. Improper installation or use will void the warranty.

2.1 Suitable, Independent Alarm System

The control devices are designed and manufactured with the greatest care; however, a technical fault cannot be completely ruled out. Many countries have increasingly stringent insurance requirements, so the alarm contacts of the individual control computers should be connected to a central alarm unit.

• It is recommended to install a suitable, independent alarm system, such as a thermostat to monitor minimum and maximum temperatures.
• Test the alarm manually at least once a week.

2.2 During Use

Persons operating the device must have thoroughly read the operating manual and be aware of the potential hazards that may arise from improper use and maintenance.

• The device may only be opened by authorized persons.
• If possible, do not switch off the computer when there are no animals in the stable. Instead, switch it to standby mode to prevent condensation formation due to cooling.
• Regularly check the device for possible damage. A damaged device is unsafe. Report any damage to your installer immediately.
• Electronic devices are splash-proof but must not be cleaned with a high-pressure cleaner.
• The device may only be opened by authorized persons.

2.3 Disposal

The EU has introduced separate collection systems for electrical and electronic equipment and batteries (Directive 2012/19/EU). Improper disposal may result in a fine. Electrical and electronic equipment must be collected separately at the end of its service life.

Introduction

3.1 Purpose of Use

The BRAVO TOUCH, equipped with a touchscreen and optional external connection possibilities, is suitable for controlling all types of ventilation, heating, and cooling in modern animal husbandry.

3.2 Overview of Inputs and Outputs

Analog Inputs: Room temperature, outside temperature, humidity, carbon dioxide (CO2), ammonia (NH3), air pressure (Pa).

Analog Outputs: Proportional fans, damper control, supply air control.

Digital Inputs: Measurement fan, external alarm.

Digital Outputs: Heating, cooling, alarm groups.

Controls

4.1 Outside Temperature Compensation

If the outside temperature is lower than the room temperature, the compensation is automatically increased. This process begins when:

• The outside temperature sensor is active.
• The measured outside temperature is at least 10°C below the room temperature.

The bandwidth increases by 0.1°C per degree Celsius that the outside temperature is below the compensation point, up to a maximum of 10°C. For example, at a room temperature of 21°C and an outside temperature of -5°C, compensation begins at 11°C. The compensation then increases by (11°C - (-5°C)) × 0.1 = 1.6°C.

When the outside temperature sensor alarm is active, compensation is automatically deactivated.

4.2 rF Control

If the relative humidity (rF) exceeds the setpoint, the minimum ventilation is increased. This occurs up to 50% of the set minimum ventilation within a bandwidth of 20% rF. Note: The control with the highest compensation takes precedence.

• Minimum Ventilation: 10%
• Setpoint rF: 50%
• Actual rF: 60%
• Bandwidth: 20%

Calculation of percentage increase: (60% - 50%) / 20% × 50% = 25%. Minimum ventilation is then: 10% × 1.25 (↑ 25%) = 12.5%.

4.3 CO2 Control

If the CO2 value exceeds the setpoint, the minimum ventilation is increased. This increase can be up to 50% of the set minimum ventilation over a range of 1000 ppm CO2. Note: The control with the highest compensation takes precedence.

• Minimum Ventilation: 10%
• Setpoint CO2: 1500 ppm
• Actual CO2: 2000 ppm
• Bandwidth: 1000 ppm

Calculation of percentage increase: (2000 ppm – 1500 ppm) / 1000 ppm × 50% = 25%. Minimum ventilation is then: 10% × 1.25 (↑ 25%) = 12.5%.

4.4 NH3 Control

Up to 50% of the set minimum ventilation over a range of 10 ppm NH3. Note: The control with the highest compensation takes precedence.

• Minimum Ventilation: 10%
• Setpoint NH3: 15 ppm
• Actual NH3: 20 ppm
• Bandwidth: 10 ppm

Calculation of percentage increase: (20 ppm – 15 ppm) / 10 ppm × 50% = 25%. Minimum ventilation is then: 10% × 1.25 (↑ 25%) = 12.5%.

4.5 Supply Air Control

The supply air control adjusts the supply air considering an adjustable temperature correction in relation to the setpoint temperature. By applying a bandwidth factor, the actual supply air bandwidth is determined (the factor is multiplied by the ventilation bandwidth). The control operates in a range from 0% to 100%.

4.6 Motor Control

Motor control is used instead of fan control, e.g., in cases where a central air duct is used. It allows control of the supply air, thus controlling how much air enters the room at any given time.

When motor control is active, fan control is automatically deactivated. Settings directly related to fan control are not visible in this case. In this scenario, the TRIAC on the BP03 takes over the function of switching motor control on and off. Relay 2 on the BP03 is also used in this case to control the direction of motor control (open or closed). This means that when motor control is active, cooling control should not be active. Additionally, the heating sensor 2 cannot be used when motor control is active.

Motor control can operate either feedback-based or time-controlled. With feedback control, there is more control over the motor's position, while with time-controlled operation, there is no direct feedback on the motor's position. This can lead to temperature values or other parameters deviating too much, even if it happens gradually. In time-controlled operation, the motor's current position may be temporarily displayed incorrectly if manual operation is performed via the Bravo Touch. This discrepancy is corrected during the 8-hour calibration.

The motor does not adjust its position continuously. Once the motor reaches the desired position, it remains in that position for 15 seconds and then checks again if an adjustment is needed.

4.7 Ventilation Stop Control

The ventilation stop control offers three modes:

• Mode 0: Switches off the ventilation stop control.
• Mode 1: Switches on the ventilation stop control.
• Mode 2: Applies a pulse-pause control using an adjustable temperature offset from the setpoint temperature. This control uses a hysteresis of 1°C and has a repeating cycle of 9 minutes pause and 1 minute impulse at minimum ventilation. This prevents, for example, ice from blocking the fans.

In the ventilation stop state:

• Heating and cooling are switched off.
• Temperature alarms are deactivated, but sensor fault alarms remain active.
• Speed control and supply air control remain active.

4.8 Switching Off the Control Computer

When the control computer is switched off, the fan can either be completely stopped or operated at a specific percentage. This percentage corresponds to the one used during normal control. This means the fan cannot run below the minimum ventilation and not above the maximum ventilation. The same applies to supply air control.

Switching off the climate computer also has the following effects:

• Heating and cooling functions are switched off.
• Alarms for minimum and maximum temperature are deactivated (the alarm for sensor failure remains active).
• Supply air control settings remain visible in standby mode, if applicable.
• The QR code for the manual and access to the installer menu remain available.

4.9 Fan Output Value

Both in operating and standby mode, the actual fan output value remains the same. For example, 15% in operating mode also means 15% in standby mode. This means at least 0.5 V is output.

To output 0 V in standby mode, a separate option is available in the menu. When this option is activated, the fan output value will be 0 V. If the option is deactivated, at least 0.5 V will be output depending on the selected value.

4.10 Accessing the Installer Menu

There are two ways to log into the installer menu:

1. Standard: Using the Plus and Minus buttons in the sequence: Plus, Minus, Minus, Plus.
2. PIN Code: This option can only be activated by your installer in the installer menu. If you wish to access the installer menu, a pop-up window for the PIN code will appear, where you must enter the PIN code set by your installer.

Operation

5.1 Screen Layout

A - Alarm Symbol: The color of the symbol indicates the alarm situation:

• Gray: No alarm active.
• Red: An alarm is active.
• Orange: Alarms have been suppressed but not yet resolved.

B - Control Symbols: In the right half of the screen, you can cycle through all control symbols by swiping up and down. Tapping a symbol allows you to change the desired settings (see 5.2 Changing Settings). The set values are displayed to the right of the symbols.

C - Heating/Cooling Symbols: In the lower right corner of the screen, if activated, you will see the heating or cooling symbol:

• Gray Flame: Heating OFF (heating relay switched off).
• White Flame: Heating ON (heating relay switched on).
• Gray Ice Crystal: Cooling OFF (cooling relay switched off).
• White Ice Crystal: Cooling ON (cooling relay activated).

D - Main Overview: On the left side of the screen is the main overview. Depending on the configuration, the following information may be displayed:

1. No additional sensor: Current setpoint temperature.
2. Outside temperature sensor: Measured outside temperature.
3. Additional temperature sensor heating: Measured heating temperature.
4. Current room temperature in Celsius or Fahrenheit.
5. Currently measured ventilation level in %. If no measurement fan is installed, the calculated ventilation is displayed.
6. Set minimum and maximum ventilation.

E - Settings Overview: On the right side of the screen, you see an overview of all settings with their corresponding values.

5.2 Changing Settings

You can change a set value as follows:

1. Tap the symbol of the setting you want to change. An adjustment bar with options (+ OK -) will appear.
2. Tap + or - to increase or decrease the value.
3. Tap OK to confirm the changed value.

If you want to cancel an entered value, do not tap OK, but tap anywhere in the left area of the screen. The adjustment bar will disappear, and the setting will revert to its original value.

5.3 Switching the Climate Computer On and Off

When you deactivate the climate computer, most options are also deactivated. Heating and cooling controls, as well as alarms for minimum and maximum temperature, are switched off. Alarms for sensor failures remain active.

The following options remain visible:

• Ventilation yes/no
• Ventilation %, if ventilation = yes
• Supply air control %, if the supply air option is activated
• Service numbers
• QR code for the manual
• Access to the installer menu

Further information can be found in the description under function number 23, page 15.

Settings in the User Menu

6.1 Start Screen

This chapter describes all settings visible in the user menu. The user menu can be accessed directly from the start screen.

• Symbols followed by [ ] are always visible.
• Symbols followed by [ ] are visible depending on the settings made in the installer menu (Chapter 5).

In Appendix A, you will find a list of function numbers with their corresponding dependencies.

6.2 24-Hour Overview

Tapping this symbol opens a 24-hour diagram for temperature, ventilation, and additional control. You can select the different diagrams using the symbols on the right side of the diagram. Close the diagram by tapping the cross (×) in the upper right corner.

Yesterday's measurements are shown with a thin line. The thicker line represents the graph of today's measurements up to the current time.

The diagram for additional control is only visible if an additional control is activated.

6.3 Day Counter

Displays the current day number of a cycle and selects the corresponding values from the ventilation curve. By default, the day counter starts at day 0 and increments each day. You can manually set the day number.

The day counter is only visible in curve mode. Curve mode is activated in the installer menu.

6.4 Ventilation Curve

Opens the ventilation curve. The ventilation curve is only visible in curve mode. Curve mode is activated in the installer menu. You can select the menu item Ventilation Curve (Function Number 3) in the user menu.

6.5 Setpoint Temperature

Here you set the desired temperature for the compartment. The temperature unit is set by the installer (see installer manual). If curve mode is activated, the symbol appears in a lighter green. The calculated value is displayed and cannot be adjusted directly. Tapping this symbol opens the curve menu, where you can change the values (see Chapter 7 Curve Mode).

6.6 Minimum and Maximum Ventilation

Here you set the desired minimum ventilation. This is the ventilation amount applied when the room temperature is equal to or lower than the setpoint temperature. If curve mode is activated, the symbol appears in a lighter green. The calculated value is displayed and cannot be adjusted directly. Tapping this symbol opens the curve menu, where you can change the values (see Chapter 7 Curve Mode).

Here you set the desired maximum ventilation. This is the amount of ventilation applied when the room temperature reaches the end of the bandwidth. If curve mode is activated, the symbol appears in a lighter green. The calculated value is displayed and cannot be adjusted directly. Tapping this symbol opens the curve menu, where you can change the values (see Chapter 7 Curve Mode).

6.7 Bandwidth

Here you set the desired temperature range in which the ventilation is adjusted from minimum to maximum setting.

Illustration: Bandwidth Diagram

6.8 Heating Control

Here you set the setpoint temperature for heating control. If you do not use an additional sensor for heating control (Installer Setting: Function Number 54), heating is controlled based on an offset from the actual temperature. If you use a second temperature sensor (User Setting: Function Number 9) for heating control, you set an absolute setpoint temperature.

Offset Heating: Here you set the heating offset to the setpoint temperature. The heating relay is activated as soon as the room temperature falls below the set temperature offset. The heating relay is activated at a room temperature of 20.0°C - 2.0°C = 18.0°C.

The pictogram is only displayed if heating is activated (Installer Setting: Function Number 55).

Setpoint Heating Temperature: For additional heating control, heating is switched on as soon as the second temperature sensor measures a temperature below this setpoint.

The pictogram is only displayed if heating is activated (Installer Setting: Function Number 55) and a second temperature sensor for heating is switched on (Installer Setting: Function Number 54).

6.9 Cooling Offset

Here you set the cooling offset in relation to the setpoint temperature. The cooling relay is activated as soon as the room temperature exceeds the set offset. The cooling relay is activated at a room temperature of 20.0°C + 2.0°C = 22.0°C.

The pictogram is only displayed if cooling is activated (Installer Setting: Function Number 57). In case of a sensor alarm, the cooling system automatically switches off.

6.10 Minimum and Maximum Temperature Alarms

Minimum Temperature Alarm: Here you set the minimum alarm limit for temperature control. If the room temperature falls below this value, the alarm is triggered.

Maximum Temperature Alarm: Here you set the maximum alarm limit for temperature control. If the room temperature exceeds this value, the alarm is triggered.

6.11 Additional Controls

Your installer can configure the BRAVO TOUCH with additional pressure control, rF control, CO2 control, or NH3 control. The additional control is only visible in the user menu if it has been activated in the installer menu (see installer manual, Chapter 5.21 Additional Control).

• Pressure Control: Set the desired pressure value. The pressure control adjusts the analog output value to maintain this pressure constantly.
• Minimum Pressure Alarm: Set the minimum alarm limit for pressure control. If the pressure falls below this value, the alarm is activated.
• Maximum Pressure Alarm: Set the maximum alarm limit for pressure control. If the pressure exceeds this value, the alarm is activated.
• rF Control: If the relative humidity (rF) rises above the set value, the minimum ventilation is increased to reduce humidity.
• Maximum rF Alarm: Set the maximum alarm limit for humidity control. If the rF exceeds this maximum value, the alarm is activated.
• CO2 Control: If the CO2 value rises above the set value, the minimum ventilation is increased to reduce the CO2 value.
• Maximum CO2 Alarm: Set the maximum alarm limit for CO2 control. If the CO2 value exceeds this maximum value, the alarm is activated.
• NH3 Control: If the NH3 content rises above the set value, the minimum ventilation is increased to reduce the NH3 value.
• Maximum NH3 Alarm: Set the maximum alarm limit for NH3 control. If the NH3 content exceeds this maximum value, the alarm is activated.

6.12 Switching the Climate Computer On and Off

When the control computer is switched off, the fan can either be completely stopped or operated at a specific percentage. This percentage corresponds to the value used in the control. The ventilation output must not be below the minimum ventilation and not above the maximum ventilation. When the control computer is switched on, the background color appears green, and all functions are active. If the control computer is switched off, the background color changes to orange. In this state, the settings are no longer visible, except for ventilation control, supply air control, the manual, and the function numbers. The installer menu remains accessible. Heating, cooling (if activated), sequential control, and temperature alarms are deactivated. Alarms for damper control, speed feedback, and defective temperature sensor remain active (if configured). If applicable, the position of the supply air control is displayed in standby mode.

6.13 User Manual

The QR code opens a hyperlink to the digital download version of this manual. You can scan the QR code with your smartphone or another mobile device.

6.14 Support Mode

Activate Support Mode to display the function numbers next to each menu option. This helps to quickly identify remote support functions.

6.15 Installer Login

Here you can log in to access the installer menu. Your installer has set an access code (4 digits) using a combination of minus and plus signs (see installer manual, Chapter 5).

Curve Mode

The pop-up window of the curve menu shows the ventilation curve settings. Curve mode is activated in the installer menu. In the user menu, you can select the menu item Ventilation Curve (Function Number 3).

The curve contains four corner points. For each corner point, you can set the setpoint values for temperature and ventilation according to the age (in days) of the animals. The transition between the corner points is linear over the number of days.

• Setpoint Temperature on Day 10: 30°C
• Setpoint Temperature on Day 20: 20°C

In 10 days, the temperature drops by 10°C or 1°C/day.

These settings display the measured values according to the set curve. Selecting a setting opens the curve table.

Alarm Overview

8.1 General

This chapter describes the possible alarms of the BRAVO TOUCH.

• No Alarm Active: When the alarm bell symbol is gray, no alarms are active.
• One or More Alarms Active: When one or more alarms are active, the alarm bell symbol flashes on a red background. The symbol changes with the symbol of the active alarm. The alarm relay also drops out.

8.2 Resolving an Alarm Situation or Silencing an Alarm

To deactivate an alarm, tap the alarm symbol displayed on the start screen. The alarm relay will engage again. In case of a new alarm, the relay will drop out again. Once the alarm situation is resolved, the alarm symbol changes to gray. If the alarm situation is not resolved, the corresponding symbol turns orange to indicate that the alarm has been suppressed. If BRAVO TOUCH detects within 5 minutes that the alarm is still active or a new alarm occurs, the active alarm bell symbol will reappear, and the alarm relay will drop out again.

The different alarm symbols are only displayed when the respective control is active and a corresponding alarm occurs.

• No Alarm: Currently, there are no active alarms.
• Warning: One or more alarms are active but have been suppressed for 5 minutes.
• Alarm: One or more alarms are active, and the alarm relay has dropped out.
• Minimum Temperature Alarm: The measured room temperature is equal to or lower than the set minimum alarm limit.
• Maximum Temperature Alarm: The measured room temperature is equal to or higher than the set maximum alarm limit.
• Ventilation Speed Feedback Alarm: The measured ventilation output is significantly below the required output. In case of an active alarm, speed feedback is deactivated, and ventilation is controlled based on the calculated value.
• Maximum CO2 Alarm: The measured CO2 content is equal to or exceeds the set maximum alarm limit.
• Maximum rF Alarm: The measured rF is equal to or higher than the set maximum alarm limit.
• Maximum NH3 Alarm: The measured NH3 content is equal to or exceeds the set maximum alarm limit.
• IO Alarm: Communication between the top board and the bottom board is interrupted.
• External Input Alarm: The external alarm input is active.
• Minimum Pressure Alarm: The measured pressure is equal to or lower than the set minimum alarm limit.
• Maximum Pressure Alarm: The measured pressure is equal to or exceeds the set maximum alarm limit.
• Sensor-1 Defect Alarm: The temperature measured at sensor input 1 is outside the range of -60.0°C to 130.0°C. A value below -60.0°C or above 130.0°C indicates a defective sensor. As long as this alarm is active, heating and cooling controls are deactivated.
• Sensor-2 Defect Alarm: The temperature measured at sensor input 2 is outside the permissible range. As long as this alarm is active, heating, cooling, and outside temperature compensation are deactivated.
• Motor Control Alarm: During calibration, the time required to go from fully closed to fully open is measured. In operating mode, an alarm is triggered if the desired position is not reached within this time (with a 10-second tolerance). Motor control then pauses all activities for 150 seconds before the alarm is cleared and a new calibration is started. A motor alarm can only be triggered if feedback is set (see installer manual: Function Number 86).