Salus RT520TX Wireless Thermostat Installation Manual
This document provides detailed instructions for the installation and setup of the Salus RT520TX wireless thermostat system.
Introduction
The Salus RT520TX is a modern wireless thermostat designed for efficient control of heating systems. It offers advanced features and user-friendly operation. This manual covers the installation process for both the thermostat unit and its associated receiver.
The RT520 series is available in wired and wireless versions, building upon the features of previous RT series models with an enhanced display and functionality.
Safety Precautions
Before commencing installation, please read and understand all safety instructions:
- Ensure the power supply to the heating system is switched OFF at the main isolator before starting any wiring. [Electrical Hazard]
- Installation should be performed by a qualified electrician or heating engineer.
- Follow all local electrical regulations and building codes.
- Keep packaging materials away from children.
Package Contents
Verify that the following components are included in your Salus RT520TX package:
- RT520TX Wireless Thermostat Unit
- Receiver Unit (e.g., RXRT520)
- Mounting Screws and Wall Plugs
- User Manual (this document)
- Batteries (typically AA or AAA)
Installation Steps
1. Mounting the RT520TX Thermostat Unit
Choose a suitable location for the thermostat, typically on an internal wall, away from direct heat sources, drafts, or sunlight. The ideal height is approximately 1.5 meters (5 feet) from the floor.
Textual Description of Diagram: A diagram would typically show the thermostat unit being held against a wall, with markings for drilling pilot holes. It would illustrate the use of a spirit level to ensure it's mounted straight, and then securing it with screws into wall plugs.
- Mark the desired mounting points on the wall using the thermostat's backplate as a template.
- Drill holes for the wall plugs if necessary.
- Feed any necessary wiring (if applicable, though this is a wireless unit, power might be needed for some models or the receiver) through the designated opening in the backplate.
- Secure the backplate to the wall using the provided screws.
- Attach the RT520TX thermostat unit to the backplate.
2. Wiring the Receiver Unit
The receiver unit typically connects directly to the boiler or heating system. Ensure the power is OFF.
Textual Description of Diagram: A wiring diagram would show the receiver unit with clearly labeled terminals (e.g., L, N for mains power; COM, NO, NC for boiler/system control). It would illustrate connecting the mains live and neutral wires to the receiver's power input and then connecting the boiler control wires to the appropriate output terminals. Arrows would indicate the direction of power and signal flow.
Common wiring terminals on the receiver unit:
- L, N: Mains power supply (230V AC).
- COM: Common terminal.
- NO: Normally Open contact (used for most heating systems).
- NC: Normally Closed contact (less common for standard heating).
Refer to your specific boiler's manual for correct wiring connections.
3. Connecting the Thermostat and Receiver
The RT520TX is a wireless system. Once both units are powered and installed, they need to be paired.
- Install batteries into the RT520TX thermostat unit.
- Power ON the receiver unit.
- Follow the on-screen prompts on the RT520TX to initiate the pairing process. This usually involves pressing a pairing button on the receiver and then confirming on the thermostat.
- Once paired, the thermostat display should indicate a successful connection to the receiver.
Configuration and Setup
After successful installation and pairing, configure the thermostat settings:
- Set Date and Time: Essential for scheduling.
- Select Operation Mode: Auto, Manual, Off.
- Program Schedules: Define heating periods and temperature setpoints for different times of the day and week. The RT520TX typically supports multiple programmable periods per day.
- Temperature Units: Celsius (°C) or Fahrenheit (°F).
- Frost Protection: Set a minimum temperature to prevent freezing.
Refer to the user interface guide on the thermostat for detailed menu navigation.
Troubleshooting
If you encounter issues, consult the following common problems and solutions:
| Problem | Possible Cause | Solution |
|---|---|---|
| Thermostat not powering on | Batteries are dead or inserted incorrectly. | Replace batteries with new ones, ensuring correct polarity. |
| No communication between thermostat and receiver | Units are too far apart, interference, or pairing lost. | Check distance, move receiver away from interference sources, re-pair the units. |
| Heating system not responding | Incorrect wiring, boiler fault, or thermostat set to 'Off'. | Verify wiring connections, check boiler status, ensure thermostat is in Auto or Manual mode with a call for heat. |
| Incorrect temperature reading | Thermostat placed near heat source/draft. | Relocate thermostat to a more suitable position. |
Specifications
Textual Description of Table: A table detailing technical specifications would list parameters such as power supply, temperature range, switching capacity, wireless frequency, dimensions, and IP rating.
- Power Supply (Thermostat): Typically 2x AA Batteries
- Power Supply (Receiver): 230V AC, 50Hz
- Switching Rating: Max 5A (Resistive Load), Max 2A (Inductive Load)
- Temperature Range: 5°C to 35°C (for setting)
- Wireless Frequency: 868 MHz (typical for Salus)
- Dimensions (Thermostat): Approx. 115mm x 86mm x 26mm
- Dimensions (Receiver): Approx. 90mm x 90mm x 26mm
- IP Rating: IP30 (typical)
