RT310 (HEAT/COOL) THERMOSTAT - FULL USER MANUAL

1. Introduction

1.1 Product Compliance

This product complies with the essential requirements and other relevant provisions of Directives 2014/53/EU and 2011/65/EU. The full text of the EU Declaration of Conformity is available at the following internet address: www.saluslegal.com.

1.2 Safety Informations

Read the entire manual before starting installation work and before using the product. The information contained in the instructions is essential for proper functioning. To avoid accidents resulting in personal injury and material damage, please follow all safety precautions specified in this manual.

• The device should not be used by people with limited mental, sensory or mental abilities, without experience, of insufficient knowledge, as well as children.
• Do not use an unassembled device (e.g., without a cover).
• The device may only be opened by a qualified person.
• Keep electrical devices out of the reach of children and ensure they do not play with it. Children should not be left unattended. If necessary, disconnect the control system for the entire room.
• Do not leave the packaging, cabinet, or any loose parts of the device unattended, as they pose a risk to children.

WARNING! Installation must be carried out by a qualified person with appropriate electrical qualifications in accordance with standards and regulations in force in the given country and in the EU.

• Never try to connect the device other than as described in the manual.
• Before assembly, repair or maintenance, as well as during any connection works, it is absolutely necessary to disconnect the mains supply and make sure that the terminals and electric wires are not live.
• The device may not be exposed to extreme temperatures, strong vibrations or subjected to mechanical shock.
• The device should not be used in unfavorable environmental conditions or in rooms where there is a concentration of flammable gases, fumes or dust.

WARNING! There may be additional protection requirements for the entire installation that the installer is responsible for maintaining.

Care for the natural environment is of paramount importance. The awareness that we manufacture electronic devices obliges us to dispose of used electronic components and devices safely. The crossed-out symbol ♻️ [recycling symbol] on the product means that the product must not be disposed of with ordinary waste containers. Sorting waste for recycling helps to protect the environment. It is the user's responsibility to surrender used equipment to a designated collection point for recycling waste from electrical and electronic equipment.

2. Product Overview

The RT310 room thermostat simply switches the heating system on and off as necessary. It works by sensing the air temperature, switching on the heating when the air temperature falls below the thermostat setting, and switching it off once this set temperature has been reached.

Turning a room thermostat to a higher setting will not make the room heat up any faster. How quickly the room heats up depends on the design of the heating system, for example, the size of the boiler and radiators. Neither does the setting affect how quickly the room cools down. Turning a room thermostat to a lower setting will result in the room being controlled at a lower temperature, and saves energy.

The way to set and use your room thermostat is to find the lowest temperature setting that you are comfortable with, and then leave it alone to do its job. The best way to do this is to set the room thermostat to a low temperature – say 18°C – and then turn it up by one degree each day until you are comfortable with the temperature. You won't have to adjust the thermostat further. Any adjustment above this setting will waste energy and cost you more money.

If your heating system is a boiler with radiators, there will usually be only one room thermostat to control the whole house. But you can have different temperatures in individual rooms by installing thermostatic radiator valves (TRVs) on individual radiators. If you don't have TRVs, you should choose a temperature that is reasonable for the whole house. If you do have TRVs, you can choose a slightly higher setting to make sure that even the coldest room is comfortable, then prevent any overheating in other rooms by adjusting the TRVs.

Room thermostats need a free flow of air to sense the temperature, so they must not be covered by curtains or blocked by furniture. Nearby electric fires, televisions, wall or table lamps may prevent the thermostat from working properly.

Product advantages:

• Has a TPI control algorithm
• The hysteresis settings can be changed
• Has a frost protection mode (temperature range 5 - 17 degrees Celsius)
• Correction of the displayed temperature ±3°C
• Has a SLEEP mode (suspending the function, e.g., outside the heating season)

2.1 Package Content

The package includes:

• RT310 thermostat
• 2x AA batteries
• Short instruction
• Mounting screws

2.2 Proper Thermostat Location

The ideal position for thermostat mounting is about 1.5m under floor level, far from heating or cooling sources. The thermostat cannot be exposed to sunlight or any extreme conditions like drafts. Because of fire and explosion risk, it is not allowed to use the thermostat in an atmosphere of explosive gases and flammable liquids (e.g., coal dust). In case any of the listed dangers occur, you have to use additional protection measures – anti-dust and explosive gases (tight cover) or prevent their formation. Furthermore, the thermostat cannot be used in condensation of water vapor conditions and be exposed to water action.

2.3 Wall Mounting

Content used for thermostat mounting:

RT310 front

How to mount the thermostat to the wall:

1. Fix the backplate to the wall using two screws at the bottom.
2. Align the front housing at the top edge with the backplate.
3. Fit the front housing by pressing lightly.

Note: You can also use a flush mount housing and a German and UK wall box to mount the thermostat directly into the wall. The standard wall box has a diameter max 60mm and depth from 41-46 mm. The cable entry on the backplate must allow a cable with 2x1.5 mm².

3. Connection Description

Wiring Configuration:

The RT310 thermostat features voltage-free output terminals: NO (Normally Open), COM (Common), and NC (Normally Closed). It is powered by 2x AA batteries and can also be connected to AC 230V mains supply via L and N terminals.

Connections:

• AC 230V L, N: Power supply for the thermostat unit.
• RT310 L, N: (These terminals are for the 230V input to the thermostat unit itself).
• NO, COM, NC: Voltage-free output terminals for controlling heating/cooling equipment.
• 2 x AA: For battery power.

Legend:

• Boiler: Boiler connection* - Boiler's contacts for ON/OFF thermostat (according to the boiler's instructions).
• Pump: Connection for a pump.
• Valve actuator: Connection for a valve actuator.

Symbols Explanation:

• L, N: Power supply 230V.
• NO, COM, NC: Voltage-free output.
• [fuse symbol]: Fuse.

MAX 3(1) A: Indicates the maximum load rating for the output terminals.

4. Before You Start (First Power Up)

4.1 LCD Icon Description

The LCD screen displays various indicators:

1. Heating Mode Indication: ? [heating icon]
2. Cooling Mode/Frost Protection Mode Indication: ❄️ [cooling icon]
3. RF Signal Indicator: ? [RF signal] (only in RT310RF models)
4. Low Battery Status: ? [low battery]
5. Temperature Unit: °C [temperature unit]
6. Room / Setpoint Temperature: ?️ [temperature]

4.2 Button Description

The thermostat features several buttons:

1. LCD Backlight: Press to turn on the LCD backlight.
2. Mode Change/Frost Protection: Press to change HEAT/COOL modes or activate Frost Protection (only when HEAT mode is enabled).
3. [Up Arrow Button]: Increase temperature setpoint.
4. [Down Arrow Button]: Decrease temperature setpoint.

PLEASE NOTE! The LCD screen can be activated by using any button.

4.3 First Power Up Sequence and Configuration

To power up the thermostat, you must insert the batteries.

1. Remove the protection foil and insert 2x AA batteries by removing the front cover.
2. After that, the thermostat will automatically power up and display all icons.
3. Then, the thermostat will display the software version.
4. When the thermostat is successfully powered up, the main screen will be displayed.

5. User Settings

5.1 Manual Mode - Changing Temperature Setpoint

In manual mode, the thermostat maintains a constant temperature set by the user. To set the temperature setpoint, follow the steps below:

1. First, the thermostat is displaying the actual room temperature.
2. Press the ⬆️ [up arrow] or ⬇️ [down arrow] button to set the new temperature setpoint.
3. Now, wait 2 seconds for the timeout to approve the changes.

The thermostat will display the main screen (actual room temperature), and the ? [heating icon] will start flashing (calling for heating in HEAT mode).

5.2 Frost Protection Mode

In this mode, the setpoint temperature is automatically set to a frost setpoint to prevent pipes from freezing. If the room temperature is lower than the frost setpoint, frost protection will be enabled. To set frost protection mode, follow the steps below:

1. Press the ❄️ [snowflake button] to turn ON/OFF frost protection.

The ❄️ [snowflake icon] will be displayed if frost protection is active. The frost point temperature can be reviewed by pressing the ⬆️ [up button] once, but can only be changed in Installer Mode. Frost protection mode can be enabled only in HEAT mode.

5.3 Sleep Mode

In sleep mode, the thermostat is switched off and does not consume any energy, and it is impossible to make an action until you activate the thermostat again. To activate/deactivate sleep mode, follow the steps below:

TO ACTIVATE SLEEP MODE:

1. Press and hold the ⬆️ [plus] and ⬇️ [minus] buttons simultaneously for 3 seconds.

In sleep mode, the thermostat's display is blank.

TO DEACTIVATE SLEEP MODE:

1. Press any button.

The thermostat will go back to work and display the main screen.

5.4 Heat/Cool Mode

Users can set the thermostat for heating or cooling. In HEAT mode, the thermostat displays the ? [flame icon] all the time. When the thermostat is in HEAT mode and is CALLING for HEAT, the ? [flame icon] is flashing. In COOL mode, the thermostat displays the ❄️ [snowflake icon] all the time. When the thermostat is switched to the COOLING mode and is CALLING for COOL, the ❄️ [snowflake icon] is flashing. The default mode is HEAT MODE.

NOTE: Every time the thermostat needs to start a call for cooling, it can be delayed for about 3 minutes.

HOW TO SET COOLING MODE:

1. By default, the thermostat is in HEATING mode (? [flame icon] is displaying).
2. To change the thermostat into the COOLING mode, press and hold the ❄️ [snowflake button] for 5 seconds.

When the thermostat is switched to the COOLING mode, the ❄️ [snowflake icon] is steady ON. If the thermostat is CALLING for COOL, the ❄️ [snowflake icon] is flashing.

HOW TO SET HEATING MODE:

1. When the thermostat is switched to the COOLING mode (❄️ [snowflake icon] is steady ON), press and hold the ❄️ [snowflake button] for 5 seconds.

When the thermostat is switched to the HEATING mode, the ? [flame icon] is steady ON. If the thermostat is CALLING for HEAT, the ? [flame icon] is flashing.

5.5 Temperatures Outside Operating Range

Temperatures below 10°C are displayed without the leading `0`. Temperatures exceeding the measurable range will be indicated by `HI` for temperatures above the upper limit, and `LO` for temperatures below the lower limit, as shown in the images.

5.6 Low Battery Detection

Battery voltage is checked every minute. When the battery voltage drops to a certain level, the Low-Battery warning indicator ? [low battery] appears. The thermostat functions normally during low battery. However, the user must change the batteries as soon as possible before the battery is too weak for normal operation to be assured. When you change the batteries, you have about 30 seconds to do so without losing your settings.

6. Installer Mode

To enter installer parameters, please follow the steps below. Please refer to the parameters table description before any changes. Use the ⬆️ [up] button to move through parameters. Use ⬆️ [up] or ⬇️ [down] for adjustments. Confirm every change/selection with the [confirm button].

1. Press and hold the ⬆️ [plus], ⬇️ [minus], and [confirm button] simultaneously for about 3 seconds to enter the installer mode.

Detailed Table with Installer Parameters:

Use the ⬆️ [up] button to move through parameters. Use ⬆️ [up] or ⬇️ [down] for adjustments. Confirm each change/selection with the [confirm button].

6.1 DIP Switches Parameters

DIP switches are used to set the chosen control algorithm. They are located under the back cover of the thermostat.

The position of the DIP switches determines the type of control algorithm:

Note on TPI: The TPI algorithm is recommended for underfloor heating. It can be adjusted between a low comfort level (6 CPH) and a higher comfort level (9 CPH). "CPH" means cycles per hour and relates to the frequency of measurement cycles performed by the thermostat. The specific DIP switch combination for TPI is not explicitly detailed in the table but is mentioned in the text.

7. Reset Function

To RESET the RT310 thermostat, please follow the steps below:

1. Press the RESET button once. You can use a paper clip.

Your thermostat will be reset and will start up automatically.

8. Cleaning and Maintenance

The RT310 thermostat requires no special maintenance. Periodically, the outer casing can be wiped clean using a dry cloth (please DO NOT use solvents, polishes, detergents or abrasive cleaners, as these can damage the thermostat). There are no user serviceable parts within the unit; any servicing or repairs could only be carried out by Salus Controls or their appointed agents.

9. Technical Information

Power supply: 2 x AA batteries

Rating: max 3(1) A

Output signal: NO/COM/NC relay

Temperature range: 5 - 35°C

Display temperature accuracy: ±0.1°C or ±0.5°C

Control algorithm: TPI or Hysteresis: ±0.25°C, ±0.5°C, ±1.0°C or ±1.5°C

Communication: Wired

Dimensions [mm]: 96 x 96 x 27

Physical Dimensions:

• Width: 96 mm
• Height: 96 mm
• Depth: 27 mm

10. Warranty

SALUS CONTROLS warrants this product to be free from any defects in material or workmanship and to perform as specified for a period of five years from the date of installation. SALUS CONTROLS reserves the sole responsibility for breach of this warranty by repairing or replacing the defective product.

This product includes software that matches the distributor's identification at the time of sale. The manufacturer / distributor provides a guarantee covering all functions and specifics of the product in accordance with this marking. The distributor's warranty does not cover the correct operation of the functions and features available as a result of a product software update.

The full warranty conditions are available at www.salus-controls.eu.