ST620RF Manual Version 006:Layout 1 21/10/10 15:33 Page 1 2 S-Series Digital Thermostat Model No ST620RF Instruction Manual
ST620RF Manual Version 006:Layout 1 2 21/10/10 15:33 Page 2 ST620RF INSTRUCTION MANUAL
ST620RF Manual Version 006:Layout 1 21/10/10 15:33 Page 3 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.
ST620RF Manual Version 006:Layout 1 21/10/10 15:33 Page 4 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 effect at different times of the day.
ST620RF Manual Version 006:Layout 1 21/10/10 15:33 Page 5 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 ST620RF programmable thermostat is about 1.5m above floor level. It should be mounted in a location where the thermostat is accessible, reasonably lit and free from extremes of temperature and draughts.
ST620RF Manual Version 006:Layout 1 21/10/10 15:33 Page 6 CONNECTING THE ST620RF RECEIVER 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 digital thermostat consult either with a qualified electrician, heating engineer or your boiler / heating system supplier for advice on how to continue.
ST620RF Manual Version 006:Layout 1 21/10/10 15:33 Page 7 INSTALLING AND REPLACING BATTERIES Installing or replacing the ST620RF Control Centre batteries is a straightforward operation, but does require you to open the case of the programmable thermostat.
ST620RF Manual Version 006:Layout 1 21/10/10 15:33 Page 8 PAIRING THE ST620RF RECEIVER AND CONTROL CENTRE It is important to correctly pair both the Receiver and Control Centre to ensure that the RF address codes are matched and that reliable communication is established between the units. Please follow the instructions below to ensure that the units are configured correctly. On the Receiver: Press and hold the SYNC button to allow the Receiver to enter the learning mode.
ST620RF Manual Version 006:Layout 1 21/10/10 15:33 Page 9 Use the Touch Ring to scroll through the Menus, and press the OK key to select the menu you want to use: You can scroll through the menus in either direction (forwards or backwards) depending on the direction you move your finger around the Touch Ring. The menus are displayed in the order shown in the picture above. Pressing the Arrow key will return the ST620RF to NORMAL mode.
ST620RF Manual Version 006:Layout 1 21/10/10 15:33 Page 10 After selecting the PAIR Menu, PAIR and the RF icon are displayed. Press the OK key to start sending the RF address code to the Receiver. The ST620RF Control Centre display will change to show a rundown timer: The unit counts down for a period of 10 minutes, with the RF Signal indicator flashing while the signal is being transmitted.
ST620RF Manual Version 006:Layout 1 21/10/10 15:33 Page 11 Replacing the Control Centre batteries will not affect the RF code setting. Pressing and holding the SYNC button on the Receiver will however clear the RF address code saved into the internal memory, and switch the Receiver into learning mode, as previously described. TESTING THE RF TRANSMISSION It is important to site both the Receiver and Control Centre in locations where the RF signal cannot be interrupted.
ST620RF Manual Version 006:Layout 1 21/10/10 15:33 Page 12 RECEIVER LED INDICATORS The LED indicators on the ST620RF Receiver are designed to give a clear and easily understood indication of the current state of the system. The various LED signal combinations and descriptions of what they indicate are shown in the table below: LED State Indication Blue On Receiver is in Manual mode and system is calling for heat.
ST620RF Manual Version 006:Layout 1 21/10/10 15:33 Page 13 AFTER INSTALLATION After completing installation and powering up the ST620RF for the first time the programmable thermostat will behave in the following way: All the indicators on the display and the backlight will be turned on. After two seconds, the ST620RF will then operate in NORMAL mode and display the current room temperature, with the RCC indicator flashing. All programmable thermostat settings will be returned to default values.
ST620RF Manual Version 006:Layout 1 21/10/10 15:33 Page 14 USER INTERFACE AND CONTROLS The status and operation of the ST620RF is clearly shown on the large backlit Liquid Crystal Display (LCD). This display allows the user to see at a glance the current status of the heating system, as well as a clear indication of the current room temperature. The display consists of a combination of symbols and alphanumeric displays.
ST620RF Manual Version 006:Layout 1 Indicator 21/10/10 15:33 Page 15 Description Function Clock Display Displays the day and time Temperature indicator Displays set or measured temperature Alphanumeric Display Displays menu and other status messages Programme Number indicator Displays the number of the active (selected) programme Heat Mode indicator Indicates heating output is turned on.
ST620RF Manual Version 006:Layout 1 21/10/10 15:34 Page 16 There are few user controls for the ST620RF, making the programmable thermostat very easy to operate. The controls are a Touch Ring (which surrounds the user display), two touch sensitive buttons, a reset button and a slide operated switch mounted on the side of the thermostat. The ST620RF Receiver has only two slide switches, a Sync button and a Reset button. These controls are shown below, along with a description of each of their functions.
ST620RF Manual Version 006:Layout 1 21/10/10 15:34 Page 17 The status of the ST620RF Receiver is indicated by the use of two bi-colour Light Emitting Diodes (LEDs).
ST620RF Manual Version 006:Layout 1 21/10/10 15:34 Page 18 OPERATION The ST620RF is configured and adjusted by the use of an innovative and stylish Touch Ring, and two touch sensitive buttons. The Touch Ring surrounds the programmable thermostat display, and is operated very easily by moving your finger around the ring. The backlit Liquid Crystal Display (LCD) gives a highly visible, easily readable indication of the programmable thermostat status.
ST620RF Manual Version 006:Layout 1 21/10/10 15:34 Page 19 Use the Touch Ring to scroll through the Menus, and press the OK key to select the menu you want to use: You can scroll through the menus in either direction (forwards or backwards) depending on the direction you move your finger around the Touch Ring. The menus are displayed in the order shown in the picture above. Pressing the Arrow key will return the ST620RF to NORMAL mode.
ST620RF Manual Version 006:Layout 1 21/10/10 15:34 Page 20 PROGRAMMING THE ST620RF The ST620RF offers great versatility with its programming options, allowing the user to programme the ST620RF to operate on an individual, 5/2 or 7 day control cycle. The programmable thermostat has a default set of Programmes that have been designed to meet the needs of most users.
ST620RF Manual Version 006:Layout 1 21/10/10 15:34 Page 21 After correct selection of the day option, the ST620RF display will change to the next programming screen. These screens allow you to set the required time and temperature settings to provide optimum control for your heating system. The hour setting will be the first setting that needs to be adjusted, and this will easily be seen because the ‘hours’ section of the time will be flashing.
ST620RF Manual Version 006:Layout 1 21/10/10 15:34 Page 22 After entering the settings in Programmes 1 to 6 for Monday, the ST620RF display will change to display a COPY TO screen. On this screen, scroll to the day that you want to copy the settings to using the Touch Ring, and then confirm this by pressing the OK key. The ST620RF will then move to the next day and ask if you would like to copy again.
ST620RF Manual Version 006:Layout 1 21/10/10 15:34 Page 23 HOLIDAY OVERRIDE MODE Entering the HOLIDAY menu allows you to turn the holiday override mode of the ST620RF on. The HOLIDAY mode allows the user to override all the current Programme settings with a specific temperature setting that is active between two dates entered by the user. When the holiday start date arrives, the HOLIDAY indicator turns on and the HOLIDAY mode is switched on.
ST620RF Manual Version 006:Layout 1 21/10/10 15:34 Page 24 Use the Touch Ring to enter the date in exactly the same way as for the holiday start date. By default, the HOLIDAY mode start and end dates are set to the current date. Make sure that the end date is after the start date – if not, the HOLIDAY mode will be disabled. The final setting to be entered is the protection temperature you want set while HOLIDAY mode is active.
ST620RF Manual Version 006:Layout 1 21/10/10 15:34 Page 25 CANCELLING HOLIDAY OVERRIDE MODE When in HOLIDAY mode, pressing the OK key will make the display change between CANCEL and HOLIDAY every 0.5 seconds as shown below: Pressing the OK key will cancel HOLIDAY mode and return the ST620RF to AUTO mode. Pressing the Arrow key leaves the programmable thermostat in HOLIDAY mode.
ST620RF Manual Version 006:Layout 1 21/10/10 15:34 Page 26 FROST MENU Entering the FROST menu allows you to turn the frost protection mode of the ST620RF on or off. The FROST mode temperature is preset at 5 ºC; this temperature is factory set and cannot be adjusted. The FROST mode indicator will be displayed on all the FROST menu screens. On entering the menu, use the Touch Ring to scroll to the preferred option (OFF or ON), and confirm the choice using the OK button.
ST620RF Manual Version 006:Layout 1 21/10/10 15:34 Page 27 SLEEP MENU The SLEEP mode allows the ST620RF to conserve power by turning off the LCD display. Entering the SLEEP menu allows you to activate this power saving feature from a 5 second run down timer: Pressing the OK Key at any time within the 5 seconds will cause the ST620RF to immediately go into SLEEP mode, as will allowing the countdown to complete. Pressing the Arrow key will return the ST620RF to the Menu display mode.
ST620RF Manual Version 006:Layout 1 21/10/10 15:34 Page 28 MANUAL OVERRIDE SETTING When the ST620RF is in NORMAL mode, press the Touch Ring anywhere except the OK and Arrow keys to enter the Manual Override mode. The currently set temperature will be displayed on the LCD and will flash. When the set temperature is flashing, press the Touch Ring and move your finger clockwise to increase the set temperature, or anti-clockwise to decrease the set temperature.
ST620RF Manual Version 006:Layout 1 21/10/10 15:34 Page 29 MANUAL SETTING OF TIME AND DATE If the time and date setting need to be set manually, this can be done by accessing the TIME menu. The first option within the menu is a choice of 12 or 24 hour clock setting. On entering the menu, use the Touch Ring to scroll to the preferred option (12 or 24 hour clock), and confirm the choice using the OK button. Use the Arrow key to return to the previous screen display.
ST620RF Manual Version 006:Layout 1 21/10/10 15:34 Page 30 SERVICE MENU The Service Menu should only be selected or changed by the Engineer carrying out the installation, or other qualified person. It is strongly recommended that you familiarise yourself with the instructions contained in the Operation section of this manual before attempting to change any of the settings in the SERVICE menu.
ST620RF Manual Version 006:Layout 1 21/10/10 15:34 Page 31 Confirm the setting using the OK key, or Press the Arrow key to return to the previous screen display. The next menu screen allows you to set a temperature setting. This temperature is the maximum temperature that the heating system will operate at once the previously set service date is reached. The temperature is set by scrolling the Touch Ring to the desired setting, then confirming with the OK key.
ST620RF Manual Version 006:Layout 1 21/10/10 15:34 Page 32 Once the SERVICE date has been reached, the system will only operate at the temperature that was previously set in SERVICE mode. The display will no longer display the operating mode, only the telephone number that has been entered and the SERVICE indicator (which will continue to flash). To enter the SERVICE menu, press the OK or Arrow keys, and enter the code you originally set to access SERVICE mode.
ST620RF Manual Version 006:Layout 1 21/10/10 15:34 Page 33 RADIO CONTROLLED CLOCK The ST620RF time and day of the week settings are updated automatically every day (at 12:00 AM or 2:00 AM) by the use of a very accurate internal Radio Controlled Clock. The RCC status indicator will be displayed for 10 minutes during clock updates. The indicator will flash during the time update process, after which the indicator will be displayed for 5 minutes before turning off.
ST620RF Manual Version 006:Layout 1 21/10/10 15:34 Page 34 BATTERY STATUS The ST620RF checks the battery voltage frequently during normal operation. If the battery voltage is sensed as being low, the low battery indicator will be displayed on the screen. Although the programmable thermostat will continue to operate normally at this stage, you should replace the batteries as soon as possible to prevent the ST620RF entering OFF mode.
ST620RF Manual Version 006:Layout 1 21/10/10 15:34 Page 35 SLIDE SWITCH The Slide Switch has two positions: UNLOCKED and LOCKED. In the LOCKED position, the Touch Lock indicator will be visible on the LCD, and it will not be possible to change the ST620RF settings. If you are unable to change any thermostat settings, check that the Slide Switch is in the UNLOCKED position. RESET BUTTON The Reset Button is provided as a way to restore the thermostat to its default factory settings.
ST620RF Manual Version 006:Layout 1 21/10/10 15:34 Page 36 AUTO MODE Moving the slide switch to the ‘Auto’ position selects the Automatic operation mode of the ST620RF. In this mode, the Receiver will automatically receive an RF signal from the Control Centre and control the output relay. When in Auto Mode, if RF communication between the Receiver and Control Centre is lost for less than one hour, the Receiver remains in the same operating state it was in when the signal was lost.
ST620RF Manual Version 006:Layout 1 21/10/10 15:34 Page 37 ENERGY TIP One way to set and use your room thermostat is to find the lowest temperature setting that you are comfortable with, and then leave it set at this temperature.
ST620RF Manual Version 006:Layout 1 21/10/10 15:34 Page 38 PRODUCT SPECIFICATION Model: Type: Clock Type: Reception Frequency: Display Modes: ST620RF Electronic programmable thermostat with RF module, designed for Volt Free heating applications. Radio Controlled Clock (RCC) MSF (UK Version). 60 kHz ± 300 Hz 12 or 24 hour clock display.
ST620RF Manual Version 006:Layout 1 21/10/10 15:34 Page 39 DEFAULT PROGRAMMES Programme 1 2 3 4 5 6 Output ON TEMP ON TEMP ON TEMP ON TEMP ON TEMP ON TEMP Weekday 6:00 AM 21 ºC 8:00 AM 14 ºC 11:00 AM 21 ºC 1:00 PM 14 ºC 4:00 PM 21 ºC 9:00 PM 14 ºC Weekend 6:00 AM 21 ºC 8:00 AM 14 ºC 11:00 AM 21 ºC 1:00 PM 14 ºC 4:00 PM 21 ºC 9:00 PM 14 ºC Temperature Scale: Celsius Tolerance: Sampling Rate: Less than ± 0.5 ºC at 25 ºC Every 15 seconds Display Range: Display Resolution: 0.0 ºC to + 45.0 ºC 0.
ST620RF Manual Version 006:Layout 1 21/10/10 15:34 Page 40 Power Supply – Control Centre Power Source: Battery Life: 2 x AA alkaline batteries (Don’t use rechargeable batteries) Approximately 1 year Power Supply – Receiver Power Source: 230V AC / 50Hz Control Control Method: 1. On – Off control 2.
ST620RF Manual Version 006:Layout 1 21/10/10 15:34 Page 41 Radio Frequency (RF) Settings Operating Frequency: Max.
ST620RF Manual Version 006:Layout 1 42 21/10/10 15:34 Page 42 ST620RF INSTRUCTION MANUAL
ST620RF Manual Version 006:Layout 1 21/10/10 15:34 Page 43 ST620RF Warranty Salus Controls warrants that this product will be free from any defect in materials or workmanship, and shall perform in accordance with its specification, for a period of two years from the date of installation. Salus Controls sole liability for breach of this warranty will be (at its option) to repair or replace the defective product. Customer Name: .............................................................................
ST620RF Manual Version 006:Layout 1 21/10/10 15:34 Page 44 salus-tech. Sales: Email: sales@salus-tech.com Tel: 01226 323961 Technical: Email: tech@salus-tech.
