Salus ST620WBC User manual

Instruction Manual

Model No ST620WBC

Programmable Thermostat with Plug in RF Boiler Control

Salus ST620WBC Manual 013_89 09/02/2012 14:01 Page 1

ST620WBC INSTRUCTION MANUAL2

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PRODUCT COMPLIANCE

This product complies with the essential requirements of the following EC Directives:

•Electro-Magnetic Compatibility directive 2004/108/EC

•EC Marking directive 93/68/EEC

•R&TTE Directives 99/5/EC

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 installing or removing the Integral

RF Boiler Control to the boiler.

When fitting or replacing the batteries, do not mix old and new batteries together.

Do not use rechargeable 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

The ST620WBC comprises of the S series programmable room thermostat with an integral plug-

in RF boiler control. The RF boiler control is a direct replacement for the basic time clock or

blanking plate usually supplied with the boiler. Installing the RF boiler control takes minutes.

Once installed, you will benefit from all the control features of the Salus ST620 programmable

room thermostat.

Your new ST620WBC includes the following:

ST620 Programmable Room Thermostat

A programmable room thermostat is a device that combines the functions of both a room

thermostat and time controller into a single unit. The programmable thermostat is used to switch

your heating system on and off as required. It works by controlling the temperature according

to a series of programmed time settings that take effect at different times of the day.

The ST620 programmable room thermostat is a stylish and accurate 5/2 or 7 day programmable

electronic thermostat with a large, easy to read display. This programmable thermostat has been

specifically designed to be used with the integral RF boiler control.

Features

•Touch Ring Technology

•Large LCD with White Backlight

•Stylish Casing

•Intelligent Communication Technology

•Battery Powered with Replacement Indicator

•Frost Protection

•Burner on Symbol

•Radio Controlled Clock (RCC)

•Holiday Function

•Service Function

•Six Time / Temperature Settings

•Secure RF Transmission

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INTEGRAL RF BOILER CONTROL

The Integral RF boiler control is the RF receiving unit for the ST620 programmable

room thermostat. This unit uses a plug-in connection to connect directly to your

boiler and provides the ON/OFF switching.

Features

•LED status indication

•Plug-in connection to boiler

•3 position switch

•868 MHz communication

About this Manual

This manual is divided into nine parts,

these have been colour coded as follows:

1. INTRODUCTION 4

2. INSTALLATION 6

3. USER CONTROLS 15

4. BASIC OPERATION 18

5. ADVANCED FUNCTIONS 21

6. SERVICE FUNCTIONS 33

7. USEFUL INFORMATION 39

8. TECHNICAL SPECIFICATION 41

9. WARRANTY 43

Also in the box...

Installation Manual

Warranty card,

Surface mount stand

2 x Screws

2 x Anchors

2 x AA batteries

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1. INSTALLATION

ST620 Programmable Room Thermostat

Getting Started…….

Installing the ST620 Batteries

To open the case of the ST620, undo the securing screw on the bottom.

Now pull the screw down until it stops, then carefully separate the two

halves of the case by gently pulling out an upwards direction. You will

now see the battery compartments on the rear of the front fascia as shown.

Ensure that the batteries are inserted correctly and check the polarity.

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Powering up the ST620 for the first time

As soon as the batteries have been inserted, the ST620 will power up for the first time and behave

in the following way:

All the segments on the display along with the display backlight will be turned on as shown.

After two seconds, the software version number will be briefly on the screen.

The ST620 will now prompt you to choose a language. If you require ENGLISH press OK. If you require

a different Language use the touch ring to scroll through the language options then press OK.

The ST620 at this point will be in AUTO and at factory default settings. Changing default settings will

be explained in sections 4 & 5. You will also notice that the time at the top of the LCD is flashing.

This will continue to flash until the unit picks up the RCC (Radio Controlled Clock) signal and displays

the correct time. More information on the RCC can be found on page 29.

Now put the ST620 front fascia in a safe place so you can mount the ST620 back plate. The back

plate is easily fixed to the wall and uses industry standard mounting positions. We recommend that

you continue with the back plate mounting before starting to program the ST620.

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Note: If you do not wish to mount the ST620 on the wall, use the stand provided and

assemble the ST620 front and back housing. Remember to tighten the screw at the bottom.

Wall Mounting Guidelines

The ST620 should be mounted 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 ST620 should be mounted in a location where it will not come into contact with moisture or

condensation as this can affect the Touch Ring operation.

To ensure trouble free reception for both the Radio Controlled Clock (RCC) and the Radio Frequency (RF) signal. Always ensure

that the programmable thermostat is mounted away from any possible sources of interference (such as radios, TV sets,

computers, etc.), and is not mounted on or in close proximity to large metal objects. Installing the ST620 in enclosed areas such

as cellars and basements is not recommended.

NOTE: The ideal position to locate the ST620 is about 1.5m above floor level.

RF Transmission

The receiving range between ST620 and the RF Boiler Control is around 100 metres in open air, however many factors can affect

the RF transmission and shorten the operating distance, e.g. shielding by thick walls, foil back plasterboard, metal objects

such as filing cabinets, general RF interference, and so on.

The operating range is generally around 30 metres, which is large enough for most

household applications.

Mounting the Back plate

Use the screws and anchors supplied to mount the ST620 back plate in your chosen

position. Now attach the ST620 front fascia to the back plate. Remember to tighten the

securing screw

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SURFACE MOUNT STAND SUPPLIED

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Mounting the RF Integral Boiler Control to the boiler

DANGER!

• 24V & 230V: Do not Touch Electrical Components or circuits

• Isolate mains electricity supply before starting any work

and observe all relevant safety precautions

• Follow electro static discharge precaution.

Do not touch any visible PCB parts or components.

1. Switch off the boiler at its main supply. Remove the outer casing and front

fascia to allow access to the main control panel.

2. Remove cover panel A upwards to remove.

3. Pull top tab B upwards, then outwards to remove blanking plate or existing control.

Now you are ready to fit your Salus integral RF boiler control

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4. First plug in the connector block C ensuring correct orientation.

Remember to ensure the block is fully connected

5. Now locate the boiler control’s four hooks then press in and down.

Replace Cover panel A.

6. Replace the front fascia and boiler’s outer casing

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Table of contents

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