Operating Instructions Myson Touch RS 10/12 Revision 1 Ref: Myson Touch RS
Contents Page Display Symbols Explained Temperature Display Setting the Clock Comfort Levels Explained Locking the Keypad Temperature Override Temperature Hold Holiday Heat On/Off Clean Screen Factory Reset Optional Feature Setup Re-calibrating the Thermostat Wiring Diagrams 1 7 8 8 9-11 12 12 13 13-14 14 15 15 16-21 22 23-24
What is a programmable room thermostat? A programmable room thermostat is both a programmer and a room thermostat. A programmer allows you to set “On” and “Off” time periods to suit your own lifestyle. A room thermostat 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.
Any setting selected will not affect how quickly the room cools down. Turning a programmable room thermostat to a lower setting will result in the room being controlled at a lower temperature, and will save energy. The way to set and use your programmable room thermostat is to find the lowest temperature setting that you are comfortable with, and at the different times you have chosen. Then leave it alone to do its job.
whole house. If you do have TRVs, you can choose a slightly higher setting to make sure that even the coldest room is comfortable. In the other rooms adjust the TRVs to prevent any overheating. The time on the programmer must be correct. The clock will have to be adjusted in spring and autumn at the changes between Greenwich Mean Time and British Summer Time. Programmable room thermostats need a free flow of air to sense the temperature, so they must not be covered by curtains or blocked by furniture.
Installation Procedure DO’s 1. Do mount the thermostat at eye level. 2. Do read the instructions fully so that you get the best from our product. DON’Ts 1. Do not install near a direct heat source as this will affect the workings of the thermostat. 2. Do not push hard on the LCD (liquid crystal display). The LCD will be damaged and this is not repairable.
Installation The thermostat is designed to be flush mounted; a back box of 25mm should be sunk in the wall prior to installation. Step 1 Carefully separate the front half of the thermostat from the back plate by placing a small flat head terminal screwdriver in to the slots on the bottom face of the thermostat. Step 2 Place the thermostat front half somewhere safe. Terminate the thermostat power supply as shown in the diagrams at the back of this booklet. Screw the thermostat back plate on to the back box.
Display Symbols Explained Symbol Description Heat On Icon Shown when the heating is On Flashing when the Smart Start is in operation. Frost On Icon (Heating Off) Shown when the heating is switched off and is protected against frost only Keylock Icon Shown when the keypad is locked OFF Icon OFF The OFF button is always displayed, press once will toggle on/off Frost Protection. Press and hold OFF to turn the display off.
Temperature Display Room Temp = This is the current room temperature. Floor Temp = This is the current floor temperature. SET = This is the temperature you are trying to achieve in your home. Setting The Clock To set the clock in your thermostat, follow the steps below: • With the thermostat turned on, press PROG. • Press CLOCK. • Use to set the correct Time. • Press DAY to set the correct Day. • Press DONE to accept and store.
Comfort Levels Explained Comfort levels allow you to set the Programmable Room Stat to control different temperatures for selected periods throughout the day. For example, you may want the home warm in the morning when you are getting ready for work, cooler during the day when the house is unoccupied and then warmer in the evening when you are home relaxing.
Factory Programmed Comfort Levels The following comfort levels are programmed already. However, they can easily be changed. Weekday Level Morning Day Evening Night Time 07.00 08.30 16.00 22.30 Temp 19°C 16°C 21°C 12°C Weekend Level Morning Day Evening Night Time 07.00 10.00 16.00 22.
Changing the Comfort Levels • Press PROG and select Morning. • Use to set the time for the 1st Comfort level. • Use to set the temperature in °C. • You should now repeat for the Day, Evening & Night levels. • Press DAY to select the next day. In 5/2 day mode the thermostat will highlight “Sat Sun” prompting you to program the temperature levels for the weekend. In 7 day mode, the thermostat will highlight Tuesday. • When complete, press DONE to Store and Exit.
Locking the Keypad The thermostat has a keylock facility. To enable this press the bottom right corner of the display and hold for 10 seconds. When activated, you will see . To cancel, repeat the steps above. Temperature Override Using the keys allows you to adjust the set temperature. When you press either of these keys, you will see the word SET and the desired temperature. Press DONE to accept. Note: You should note that this new temperature is maintained only until the next programmed comfort level.
Temperature Hold The Temperature HOLD function is ideal for parties or when you will be going out for a number of hours. It allows you to hold a temperature for a desired period. • Press HOLD. • Set the desired Hold time and temperature. • Press DONE. • To cancel a Hold time, reduce the time to 00.00. Holiday The Holiday function reduces the set temperature in your home to the frost temperature setting.
• Press DONE • To cancel a Holiday, reduce the Holiday time to 00 days. During a holiday program the hot-water output is turned off. Heat On / Off Frost Protect Mode: Pressing the OFF button once will place the thermostat in Frost Protect mode. In this mode, the thermostat will display the frost icon and will only turn the heating on should the room temperature drop below the set frost temperature (see pages 16-21). Should the heating be turned on whilst in frost mode, the flame symbol will be displayed.
To Clean the Screen Pressing SCREEN will disable all buttons, allowing you 15 seconds to wipe the screen clean. Factory Reset The thermostat has a factory reset function. This will reset all settings back to their factory default. To perform a factory reset, follow these steps: Turn off the thermostat by pressing and holding the OFF button. Press and hold the bottom left corner of the LCD for 10 seconds. You will see all the icons appear for 2 seconds and then disappear.
THE FOLLOWING SETTINGS ARE OPTIONAL AND IN MOST CASES NEED NOT BE ADJUSTED Optional Features Explained Feature 01 – Temperature Format: This function allows you to select between °C or °F. Feature 02 - Switching Differential: This function allows you to increase the switching differential of the thermostat. The default is 1°C, which means the thermostat will switch the heating on 1°C below the set temperature and will turn it off when the set temperature is achieved.
Feature 04 – Frost Protect Temperature: This is the temperature maintained when the thermostat is in frost mode. The range is 6 - 17°C, the default is 6°C. Feature 05 – Output Delay: To prevent rapid switching, an output delay can be entered. This can be set from 00 to 15 minutes. The default is 00, which means there is no delay. Feature 06 – Communication Address: This setting does not apply to this model.
Feature 09 – Floor Limit Sensor: This function allows you to set a maximum floor temperature in order to protect the floor surface from overheating. This function only applies when the floor sensor is enabled. (see feature 08) The default setting is 28°C but this can be adjusted from 20 - 45°C. Feature 10 – Smart Start: The thermostat will automatically learn the required heat up time and will adjust itself.
Feature 12 – 5/2 Day 7 Day, Programmable: This function allows you to switch between 5/2 Day Programming (4 levels for the weekday, 4 for the weekend), 7 day Programming (4 separate levels for each day of the week) or 24 hour mode (all days of the week following the same 4 levels). Adjusting the Optional Settings To adjust the settings, follow these steps: • With the thermostat turned on. • Press PROG. • Press SETUP.
Feature Table Feature Description Setting 01 Temperature Format 00=°C 01=°F Switching Differential 0.5=0.5°C 3.0=3°C 1.
Feature Table (continued) Feature Description Setting 08 Sensor Selection 00=Built in Sensor 01=Remote Air Sensor 02=Built in & Floor sensor 09 Floor Limit 20°C-45°C (28°C Default) 10 Smart Start (Preheat) 00=Disabled (Default) 01=1hr 02=2hr 03=3hr Rate of Change For information only 12 Program Mode 00=5/2 Day (Default) 01=7 Day 02=24hr 11 21
Re-calibrating the thermostat If you need to re-calibrate the thermostat follow these instructions: 1. Press and hold the OFF button to turn the thermostat off. 2. Press and hold the ON button until the temperature appears on the screen. 3. Use the up/down buttons to set the new temperature. 4. Press DONE to accept. 5. Press the ON button once to turn the thermostat back on. Error Codes E0 = The internal sensor has developed a fault.
Myson Touch RS MYSON TOUCH RS Typical Wiring MYSON TOUCH RS HEATING +C O RT - A1 A 2 N L REMOTE SENSOR Power Input. 230V ac E 50Hz. (note 1) N L E N N N P/L E N Pump. (note 2) L Boiler (note 2) P&B H S/L S/L H = HEATING P&B = PUMP & BOILER E = EARTH N = NEUTRAL P/L = PERMANENT LIVE S/L = SWITCHED LIVE Brown. Orange. Grey. Blue.
Myson Touch RS MYSON TOUCH RS Typical Wiring MYSON TOUCH RS MYSON TOUCH RS HEATING HEATING +C +C O RT - A1 A 2 O N L RT REMOTE SENSOR Switched Live - A1 A 2 N L REMOTE SENSOR Volt Free Wiring Power Input. 230V ac 50Hz. MAINS WIRING Power Input. 230V ac 50Hz. VOLT FREE WIRING A Class 'A' switch, (contact separation of at least 3mm in all poles) must be incorporated in the fixed wiring as a means of disconnecting the supply voltage.
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MYSON Eastern Avenue, Team Valley, Gateshead, Tyne & Wear NE11 0PG, UK T: +44 (0)845 402 3434 F: +44 (0)191 491 7568 sales@myson.co.uk www.myson.co.
