Salus RT520TX Wireless RF Programmable Room Thermostat Plus User Manual

1. Introduction

This manual provides comprehensive instructions for the installation, operation, and maintenance of the Salus RT520TX Wireless RF Programmable Room Thermostat Plus. The RT520TX is designed as a replacement thermostat unit for existing Salus RT520RF systems, offering advanced programmable features for efficient boiler control.

It is crucial to read this manual thoroughly before attempting any installation or operation to ensure safe and correct usage of the device.

Figure 1: Salus RT520TX Thermostat in a home environment, illustrating its integration with boiler systems.

2. Safety Information

Please observe the following safety precautions to prevent damage to the device or personal injury:

• Electrical Safety: Installation and wiring should only be performed by a qualified electrician or competent person. Ensure the main power supply to the heating system is switched off before any installation or maintenance work.
• Battery Handling: Use only the specified battery type. Do not mix old and new batteries, or different types of batteries. Dispose of used batteries according to local regulations.
• Environmental Conditions: Do not expose the thermostat to extreme temperatures, humidity, or direct sunlight. Avoid placing it near heat sources or in areas with excessive vibration.
• Intended Use: This device is intended for controlling heating systems. Do not use it for any other purpose.

3. Product Overview

The Salus RT520TX is a user-friendly wireless programmable room thermostat. It features a clear LCD display and intuitive buttons for easy control of your heating system.

Figure 2: Front view of the Salus RT520TX Thermostat.

3.1. Display Elements

The LCD display provides essential information about the thermostat's status and settings:

• Current Time and Day: Displays the current time and day of the week.
• Temperature: Shows the current room temperature and the setpoint temperature.
• Operating Mode: Indicates the active operating mode (e.g., Auto, Manual, Holiday).
• Heating On Indicator: A flame icon typically indicates when the heating system is active.
• Battery Low Indicator: An icon will appear when batteries need replacement.
• RF Signal Indicator: Shows the status of the wireless connection to the receiver.

3.2. Control Buttons

The thermostat features several buttons for navigation and control:

• Settings/Menu Button (⚙️): Accesses the main menu and settings.
• Confirm/OK Button (✓): Confirms selections or enters sub-menus.
• Up/Down Arrows (∧ / ∨): Adjusts temperature, navigates menu options, or changes values.
• +Hr Button: Used for quick time adjustments or extending current settings.
• Power/Standby Button (⏻): Turns the thermostat on/off or puts it into standby mode.

4. Setup and Installation

The Salus RT520TX is designed as a replacement unit for an existing Salus RT520RF system. It does not include a receiver unit. Ensure you have an existing compatible receiver (e.g., RXBC605, RXBSB, LG+SV, RXWBG605, RXVBC605) already installed and wired to your boiler.

4.1. Battery Installation

1. Locate the battery compartment on the back of the RT520TX thermostat.
2. Open the compartment cover.
3. Insert two AA alkaline batteries, ensuring correct polarity (+/-).
4. Close the battery compartment cover securely. The thermostat display should power on.

4.2. Pairing with Receiver (Re-pairing if necessary)

If your RT520TX does not automatically connect to your existing RT520RF receiver, or if you are replacing an old RT520TX, you may need to re-pair the units. Refer to your RT520RF receiver's manual for specific pairing instructions, as the process typically involves pressing a pairing button on the receiver.

General Pairing Steps (may vary slightly by receiver model):

1. Ensure the receiver is powered on and connected to the boiler.
2. On the receiver, press and hold the pairing button (often labeled 'Pair' or 'Test') until its LED indicator starts flashing.
3. On the RT520TX thermostat, navigate to the pairing menu (usually found under 'Settings' or 'Installation').
4. Select the 'Pair' or 'Connect' option. The thermostat will search for the receiver.
5. Once paired, the receiver's LED will stop flashing and remain solid, and the thermostat's RF signal indicator will show a strong connection.
6. Test the connection by adjusting the temperature on the thermostat and observing if the boiler responds.

5. Operating Instructions

5.1. Setting Time and Date

1. Press the ⚙️ (Settings) button.
2. Navigate to 'Time/Date' using the ∧ / ∨ buttons and press ✓ (Confirm).
3. Adjust the year, month, day, hour, and minute using the ∧ / ∨ buttons, confirming each setting with ✓.

5.2. Operating Modes

The RT520TX typically offers several operating modes:

• AUTO Mode (Programmable): Follows the pre-set heating schedule.
• MANUAL Mode: Maintains a constant temperature set by the user, overriding the schedule.
• HOLIDAY Mode: Sets a reduced temperature for a specified duration, ideal for when you are away.
• SLEEP Mode: A specific program setting for overnight periods, often with lower temperatures.
• SERVICE Mode: Allows for temporary manual override for maintenance purposes.

To change modes, press the ⚙️ button and navigate to 'Mode' or cycle through modes using a dedicated button if available.

5.3. Programming Schedules (AUTO Mode)

The thermostat allows for customizable heating schedules. You can typically set different temperatures for various times of the day across different days of the week.

1. Ensure the thermostat is in AUTO mode.
2. Press the ⚙️ (Settings) button and navigate to 'Program' or 'Schedule'.
3. Select the day(s) you wish to program (e.g., Mon-Fri, Sat-Sun, or individual days).
4. For each time period (e.g., morning, day, evening, night), set the desired start time and temperature using the ∧ / ∨ buttons and confirm with ✓.
5. Repeat for all desired time periods and days.
6. Exit the programming menu to save changes.

5.4. Temperature Adjustment

• Temporary Override: In AUTO mode, pressing the ∧ or ∨ buttons will temporarily adjust the temperature until the next programmed event.
• Permanent Override (MANUAL Mode): Switch to MANUAL mode and use the ∧ or ∨ buttons to set a constant desired temperature.
• +Hr Function: The '+Hr' button can be used to extend the current temperature setting for a specified number of hours.

6. Maintenance

6.1. Battery Replacement

When the low battery indicator appears on the display, replace the batteries promptly to ensure continuous operation. Follow the steps in Section 4.1 for battery installation.

Note: Replacing batteries typically retains your programmed settings, but it is good practice to verify time and schedule after replacement.

6.2. Cleaning

Clean the thermostat casing with a soft, dry cloth. Do not use abrasive cleaners, solvents, or chemical sprays, as these can damage the plastic and electronic components.

7. Troubleshooting

If problems persist after attempting these solutions, please contact customer support.

8. Specifications

• Brand: 22.5 Team Controls (Salus)
• Model Number: SALUSRT520TX
• Color: White
• Dimensions: 15.5 x 10.5 x 5.5 cm
• Weight: 310 g
• Power Source: Battery operated
• Connectivity: RF (Radio Frequency)
• Controller Type: Manual control, button interface
• Special Features: Programmable, Holiday option, Sleep mode, Service mode, Customizable programs.
• Specific Uses: Boiler control
• Components Included: Thermostat only (receiver not included)

9. Warranty and Support

For warranty information, please refer to the documentation provided with your original Salus RT520RF system or contact your point of purchase. As this is a replacement unit, warranty terms may be tied to the original system purchase.

For technical support, troubleshooting assistance beyond this manual, or to inquire about compatible receivers and accessories, please visit the official Salus Controls website or contact their customer service department.

Online Resources: www.salus-controls.eu