Salus RT300 Manuale utente

Instruction Manual

Model No RT300

Digital Room Thermostat

Salus RT300 Manual 002:89 23/11/10 11:03 Page 1

PRODUCT COMPLIANCE

This product complies with the essential requirements of the following EC

Directives:

•Electro-Magnetic Compatibility directive 2004/108/EC

•Low Voltage Directive 2006/95/EEC

•EC Marking directive 93/68/EEC

SAFETY INFORMATION

These instructions are applicable to the Salus Controls model stated on the

front cover of this manual only, and must not be used with any other make or

model.

These instructions are intended to apply in the United Kingdom only, and

should be followed along with any other statutory obligations.

This accessory must be fitted by a Competent person, and installation must

comply with the guidance provided in the current editions of BS7671 (IEE

Wiring Regulations) and Part ‘P’ of the Building Regulations. Failure to

comply with the requirements of these publications could lead to

prosecution.

Always isolate the AC Mains supply before opening or removing the

unit from the wall or wall box.

When fitting batteries don’t mix old and new batteries together. Do

not use rechargable batteries.

Please leave these instructions with the end user where they should be kept

in a safe place for future reference.

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INTRODUCTION

A thermostat is a device that is used to switch the heating system in your home on

and off as needed. It works by sensing the air temperature and switching on the

heating when the air temperature falls below the thermostat setting, and switching

it off once the set temperature has been reached.

The RT300 from Salus Controls is a stylish and

accurate digital thermostat with a large, easy

to read Liquid Crystal Display (LCD). This

thermostat has been specifically designed to

be used Volt Free.

Features

•Volt free contacts

•Frost protection

•Large, easy to read LCD with blue backlight

•Burner on symbol

•User friendly

•Stylish casing

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INSTALLATION

Please read the important safety information at the start of this manual before you

begin to install the thermostat.

The ideal position to locate the RT300 thermostat is about 1.5m above floor level, in

a location where the thermostat is accessible, reasonably lit and free from extremes of

temperature and draughts. Do not mount the thermostat on an outside wall, above a

radiator or in a location where it may be subjected to direct sunlight.

The electrical connections to the RT300 are made to the supplied industry standard

backplate. This simplifies installation, as no connections are made to the controller

itself. Connection details are shown below - no Earth connection is required for the

correct and safe operation of the RT300, but a parking terminal is provided to connect

an Earth wire if one is present.

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Backplate Connections

Terminal Description Backplate

L Mains Live

SL Switched Live

(Normally Open Contact)

Earth Parking (no electrical

connection)

After installing the backplate in a suitable location, wiring connections can be made as

shown above. The following criteria apply to the installation:

• The incoming AC mains supply should be 230V AC and fused at 5 amps.

• Optimum cable size for installation is 1.5 mm2; wiring colours should be

in accordance with the current requirements of the IEE Wiring Regulations.

• Cable entry should be from the rear of the backplate.

• All wiring connections should be securely made, and be firmly

gripped beneath the square brass washer on each terminal.

The RT300 requires two ‘AA’ alkaline batteries to function correctly. Ensure that the

batteries are inserted correctly, paying careful attention to the polarity markings on the

battery and next to the battery holders.

Do not restore the mains supply to the system until all associated items are fully installed.

NOTE: All electrical installation work should be carried out by a suitably qualified Electrician

or other competent person. If you are not sure how to install this thermostat consult either

with a qualified electrician, heating engineer or your boiler / heating system supplier for

advice on how to continue.

Do not remove or refit the RT300 onto the backplate without

the mains supply to the system being isolated.

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JUMPER SETTINGS

Changes to the jumper settings should only be made by the Engineer carrying out the

installation or other qualified person.

The installer should select the jumper positions required if changes need to be made

to the factory default settings. These jumpers are found on the rear of the Control

Centre.

Jumper Function Default

Temperature Movable jumper for ± 0.5 ºC span

Span ± 0.5 ºC or ± 1.0 ºC span.

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AFTER INSTALLATION

After completing installation and powering up the RT300 for the first time the

thermostat will behave in the following way:

All the indicators on the display and the backlight will be turned

on for two seconds. After two seconds, the RT300 will then

operate in Normal mode (Normal mode is when the thermostat

is displaying the room temperature).

The following table shows the settings of the RT300 digital thermostat

after Power on:

Function Status After Reset or Power On

Operation Mode Normal mode

Room Temperature 22.0 °C, updated within 5 seconds

Set Point Temperature 20.0 °C

°C indicator On

Frost Protection indicator Off

Heat indicator Off

Low-Battery Warning indicator Off, updated within 5 seconds

Output Relay Off

After Power on, the thermostat will operate in Normal mode (Normal mode is when

the thermostat is displaying the room temperature):

•The set point temperature is reset to the default setting

•The room temperature display is updated within 5 seconds

•The control process starts

RT300 INSTRUCTION MANUAL 7

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OPERATION

The status and operation of the RT300 is clearly

shown on the large backlit Liquid Crystal Display

(LCD). This display allows the user a clear indication

of the current room temperature, and the status of

the heating system.

There are few user controls for the RT300, making

this thermostat very easy to operate. These controls

are shown below, along with a description of each

of their functions.

USER CONTROL FUNCTION SUMMARY

Key / Operation Symbol Functions

UP key Increases the selected setting

DOWN key Decreases the selected setting

BACKLIGHT / Manually turns on the LCD backlight

FROST key for 5 seconds, or activates /

deactivates Frost Protection

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REVIEWING SET POINT TEMPERATURE

You can view the set point temperature at any time by

pressing either the UP or DOWN key.

To exit from the set point review, press the BACKLIGHT /

FROST key, or don’t press any keys for approximately four

seconds – either of these actions will return the RT300 to

displaying current room temperature.

SETTING SET POINT TEMPERATURE

You can change the set point temperature very easily while

you are reviewing the set point temperature. Press the UP or

DOWN keys repeatedly to change the temperature setting.

The set point temperature will flash to indicate that it can be

changed:

The temperature will be changed in 0.5°C steps per key press. The RT300 will return

to Normal mode if no keys are pressed for more than four seconds.

Set point temperature cannot be changed if Frost Protection mode is enabled.

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FROST PROTECTION

To enable the Frost Protection mode, press and hold the BACKLIGHT / FROST button

for three seconds. Once Frost Protection is enabled, the set point temperature is

automatically set to 5°C to provide protection from the risk of freezing.

Whenever Frost Protection is activated, the Frost Protection indicator will flash in the

sequence shown below:

To turn off Frost Protection mode, press and hold the BACKLIGHT / FROST button for

three seconds.

Please be aware that the Frost Protection mode operates as an additional protection

feature but should not be used in place of a correctly installed frost thermostat, which

is required to override all other controls in the system.

The backlight will remain illuminated for approximately 5 seconds.

RT300 INSTRUCTION MANUAL

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