Salus ST620ROF User manual

Programmable RF Room Thermostat

with One Touch Energy Saving

Override Control

CONTROLS

INSTRUCTION MANUAL

Instruction Manual

Model: ST620ROF



SALUS ST620ROF Manual 003.qxp_89 11/08/2015 09:44 Page 1

02 ST620ROF INSTRUCTION MANUAL

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 tted by a Competent person, and installation must comply with the guidance

provided in the current editions of BS7671 (IEEWiring 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 tting 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.

SALUS ST620ROF Manual 003.qxp_89 11/08/2015 09:44 Page 2

INTRODUCTION

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

heating controller into a single unit. The programmable thermostat is used to switch the heating system

by means of time and temperature change. This unit is not like a standard programmer. It works by

controlling the temperature according to a series of programmed settings that take eect at dierent

times of the day.

The ST620ROF from Salus Controls is a stylish and accurate 5/2 or 7 day programmable electronic

thermostat with a large, easy to read Liquid Crystal Display (LCD).This programmable thermostat has been

specically designed to be used Volt Free. Unlike ordinary single unit design programmable thermostats,

this is a new type of unit that separates the operational functions into two units.

The Receiver is used for wiring connections and heat on/o control. The ST620 provides the user interface

and temperature sensing / control. The two units are linked together by a Radio Frequency (RF) signal.

The use of the revolutionary Touch Ring technology makes for simple usage, and is coupled with a unique,

smart design. The LCD display will show the current room temperature and the‘one touch’operation makes

the ST620ROF easy to operate.

ST620ROF INSTRUCTION MANUAL 03

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04 ST620ROF INSTRUCTION MANUAL

FEATURES

• Touch Ring Technology

• Large LCD with White Backlight

• Radio Controlled Clock (RCC)

• Manual Time / Date Setting Option

• Holiday Function

• Service Function

ST620ROF Features

• One Touch Energy Saver Override Control (RF)

• Volt free switching option

• 5/2 or 7 day programming exibility

• Built-in start up programming for quick installation

• Frost protection

• Large, easy to read display with blue backlight

• Burner on symbol

• Easy to use programming

• User friendly

SALUS ST620ROF Manual 003.qxp_89 11/08/2015 09:44 Page 4

ST620ROF INSTRUCTION MANUAL 05

INSTALLATION

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

device.

The ideal position to locate the ST620 programmable thermostat is about 1.5m above oor level. It 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 aect 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.

SALUS ST620ROF Manual 003.qxp_89 11/08/2015 09:44 Page 5

06 ST620ROF INSTRUCTION MANUAL

CONNECTING THE ST620ROF RECEIVER

NOTE: All electrical installation work should be carried out by a suitably qualied Electrician or other competent

person. If you are not sure how to install this digital thermostat consult either with a qualied electrician, heating

engineer or your boiler / heating system supplier for advice on how to continue.

The ST620ROF Receiver should be mounted in a suitable location that is both accessible for the connection of mains

and control wiring, and allows good reception of the RF signal. The Receiver needs a 230V AC mains supply to

operate, and this should be fused appropriately (16A max.).

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

condensation. There are few electrical connections required to the ST620ROF, and these connections should be

made to the terminal block inside the Receiver. No Earth connection is required for the correct and safe operation

of the ST620ROF, but a parking terminal is provided to connect an Earth wire if one is present.

These electrical connections are shown in the table below:

Terminal Function

COM Common Contact

NO Normally Open Contact

Earth Parking (No electrical connection)

L Incoming Mains - Live

N Incoming Mains - Neutral

SALUS ST620ROF Manual 003.qxp_89 11/08/2015 09:45 Page 6

RECEIVER WIRING TERMINALS

The receiver cover can be removed from its back plate by

unscrewing the grub screws under the front face and slowly pull

them apart .

Please note: These screws DO NOT need to be fully removed.

Once the cover is fully removed the terminals will become

exposed ready for installation.

ST620ROF INSTRUCTION MANUAL 07

230V

BOILER

230V Switching - Combination Boiler

BOILER

230V

24V

BOILER

Volt Free - Combination Boiler

BOILER

SALUS ST620ROF Manual 003.qxp_89 11/08/2015 09:45 Page 7

2. 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.

08 ST620ROF INSTRUCTION MANUAL

SALUS ST620ROF Manual 003.qxp_89 11/08/2015 09:45 Page 8

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

in thefollowing way: All the segments on the display along with the display backlight will be

turned on as shown.

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

If you require a dierent 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

ashing. This will continue to ash 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 28.

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

plate is easily xed 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.

POWERING UP THE ST620 FOR THE FIRST TIME

ST620ROF INSTRUCTION MANUAL 09

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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 aect 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 oor level.

RF Transmission

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

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

such as ling 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.

SURFACE MOUNT STAND SUPPLIED

10 ST620ROF INSTRUCTION MANUAL

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