RT520TX+ (WB) Wireless Thermostat

Introduction

The RT520TX+(WB) is the latest addition to the proven range of room thermostats for controlling heating systems. It is particularly suitable for electric heating systems, as the Optimized Start-Stop function ensures 100% compliance with the Ecodesign directive EN2015-1188. Its large display and intuitive operation make it optimally easy to use. Reading the digits, even from a distance, is very simple and thus doubles the comfort. Please read the manual before putting the room thermostat into operation. Thank you.

Product Conformity

This product complies with the essential requirements of EMC 2014/30/EU, LVD 2014/35/EU, RED 2014/53/EU and RoHS 2011/65/EU. The full text of the EU Declaration of Conformity can be viewed at www.saluslegal.com.

Frequency: 868.0-868.6MHz; Power: <13dBm

Safety Information

The product must be used in accordance with EU and national directives. For indoor use only. Keep your device completely dry. This product must be installed by a technically qualified person in accordance with all EU and national directives.

Always ensure that work on the devices is carried out without power (including battery replacement). Use only AA 1.5V alkaline batteries in the thermostat. Insert the batteries into the battery compartment on the back of the thermostat. Do not use rechargeable batteries.

Technical Specifications

Button Functions (RT520TX+ (WB))

• 1. [Menu]: Opens menu options. Hold for 3 seconds to return to the home screen or deactivate Boost mode.
• 2. [Select]: Confirms changes and opens menus.
• 3. [Down] ⬇️: Temperature reduction and menu navigation.
• 4. [Up] ⬆️: Temperature increase and menu navigation.
• 5. [Boost] ?: Activates party mode.
• 6. [Manual] ⚙️: Activates/deactivates manual mode.
• 7. [On] ▶️: In manual mode, turns the heating on.
• 8. [Off] ⏹️: In manual mode, turns the heating off.
• 9. [Auto] ?: The receiver operates in automatic mode, controlled by the thermostat.
• 10. [Manual] ⚙️: The receiver operates via the ON/OFF slide switch only.

LCD Display Indicators

• 1. Text line
• 2. Temperature unit: °C or °F
• 3A. Day of the week (numeric)
• 3B. Day of the week (alphabetic, English)
• 4. Time: HH:MM
• 5. AM/PM: For 12-hour display mode
• 6. Cooling mode active
• 7. Holiday mode active
• 8. Manual operation active
• 9. Heating active ?
• 10. Battery warning ?
• 11. RF connection with receiver ?
• 12. Maintenance mode active
• 13. Temperature display or temperature setting
• 14. Program section
• 15. Setting
• 16. Program display
• 17. Party function

Ensure receivers are electrically connected and their respective LEDs are blinking RED ?‍? before inserting batteries into the room thermostat.

Getting Started and Configuration

After inserting batteries, the thermostat starts up. Press [Select] to confirm.

1. Select Language: Use [Up]/[Down] to select language, then press [Select].
2. Select Time Format: Use [Up]/[Down] to select time format (24hr/12hr), then press [Select].
3. Set Time (Hours): Use [Up]/[Down] to select hours, then press [Select].
4. Set Time (Minutes): Use [Up]/[Down] to select minutes, then press [Select].
5. Set Day: Use [Up]/[Down] to select the day, then press [Select].
6. Set Temperature Accuracy: Use [Up]/[Down] to select temperature accuracy, then press [Select].
7. Press [Menu]. Navigate to the "Connect" submenu using [Up]/[Down] and press [Select].
8. Select "Connect" using [Up]/[Down] and press [Select].

The connection process is maintained for up to 10 minutes.

Pairing with Receivers

Pairing with Receiver RXRT510

LED Status:

• Green ?: Heating Request
• Red ?: No Heating Request
• Blinking Red ?‍?: Searching for Network

Once the receiver is connected to 230V, the RED LED will blink, indicating it is in pairing mode. Once paired, the blinking will stop, and the LED will be Green (heating request) or Red (no request).

Pairing with SR868 Relay

LED Status:

• Green ?: Heating Request
• Red ?: No Heating Request
• Blinking Red ?‍?: Searching for Network

Once the relay is connected to 230V, the RED LED will blink, indicating it is in pairing mode. Once paired, the blinking will stop, and the LED will be Green (heating request) or Red (no request).

Pairing with SPE868 Plug-in Timer

LED Status:

• Green ?: Heating Request
• Red ?: No Heating Request
• Blinking Red ?‍?: Searching for Network

Once the plug-in timer is connected to 230V, the RED LED will blink, indicating it is in pairing mode. Once paired, the blinking will stop, and the LED will be Green (heating request) or Red (no request).

Receiver Connections

Diagrams show connections for SALUS RT series thermostat to SR868 or SPE868 receiver/plug-in, with AC 230V power input to the receiver/plug-in.

Initial Configuration (Standard)

Follow steps 1 to 14 for initial configuration.

1. Step 2: Press [Select].
2. TPI Explanation: TPI (Time Proportional & Integral) is a self-learning, time-proportional algorithm. The TPI control method ensures economical system operation through more accurate temperature maintenance during the control process and limits overload conditions. Besides accurate and stable room temperature, the advantage of this system is the minimization of energy consumption. The RT520 offers 3 types of TPI control: 1. for radiators (6CPH, cycles per hour); 2. for underfloor heating (3CPH, cycles per hour); 3. for electric heating (9CPH, cycles per hour).
3. Step 3: Press [Select].
4. Optimized Stop Explanation: Optimized Stop calculates how long the house needs to cool down and switches off the heating at the earliest possible moment. This means the system does not run when not strictly necessary. If a sudden heat loss occurs during this time, Optimized Stop is overridden to restore comfort conditions.
5. Step 4: Use [Up]/[Down] to select the TPI type. Press [Select] to confirm.
6. Step 5: Use [Up]/[Down] to select ON or OFF. Press [Select] to confirm. The thermostat will return to the main screen.
7. Step 6: Use [Up]/[Down] to select ON or OFF. Press [Select] to confirm.

Programming - Auto Mode

In this mode, the user can set time programs (setpoints for specific times). Programs should utilize all time intervals.

1. Step 1: Press [Select].
2. Step 2: Press [Select].
3. Step 3A. Select Program Type: Use [Up]/[Down] to select program type: 5+2 (Program for weekdays and weekend); ALL (A program for the whole week); Individual (daily program). Press [Select] to confirm.
4. Step 4: Press [Select].
5. Step 5: Press [Select].
6. Step 6: Press [Menu].
7. Step 7: Press [Select].
8. Step 8. Set Hour: Use [Up]/[Down] to set the hour, press [Select] to confirm.
9. Step 9. Set Minute: Use [Up]/[Down] to set the minute, press [Select] to confirm.
10. Step 10. Set Temperature: Use [Up]/[Down] to set the temperature, press [Select] to confirm.

Repeat the process for all time intervals.

Span Explanation: Span is the maximum deviation between the measured and set temperature before the room thermostat switches on or off.

Optimized Start Explanation: Optimized Start is a selectable function that, depending on the ambient temperature, starts the heating at the optimal time to reach the setpoint temperature at the chosen time. It saves energy as the heat generator only consumes energy for the minimum time required.

Landlord Settings

Landlord Settings is a PIN-protected function that allows the landlord to set a maintenance reminder on the thermostat, warning the tenant when the heating requires its annual service.

1. Step 1: Press [Menu].
2. Step 2: Navigate to the Landlord submenu using [Up]/[Down] and press [Select].
3. Step 3. Set PIN: Set the PIN by using [Up]/[Down] for each digit and pressing [Select] to confirm.
4. Step 4: Use [Up]/[Down] to select ON or OFF. Press [Select] to confirm.
5. Step 5. Set Maintenance Period: Use [Up]/[Down] to select the maintenance period (in days) and press [Select] to confirm.
6. Step 6. Set Notice Duration: Use [Up]/[Down] to set the duration of the notice period and press [Select] to confirm.
7. Step 7. Set Temperature Lock: Use [Up]/[Down] to select the temperature lock and press [Select] to confirm.
8. Step 8. Set Phone Number: Use [Up]/[Down] to set the phone number, pressing [Select] for each digit to confirm.
9. Step 13. Review Settings: Now you can review the settings. If you wish to change anything, press [Up] or [Down] on the corresponding screen.
10. Step 14. Warning: Once maintenance mode is active, the device will set and lock the temperature to the preset value as set by the landlord. The landlord must be contacted for the heating to be serviced.

Factory Settings

To reset the thermostat, press [Menu], [Down] ⬇️, and [Boost] ? simultaneously for 5 seconds.

The device will reset and restart automatically.

ATTENTION: Landlord settings are not reset, so it is very important to remember the PIN!