1. General Information These instructions should be read carefully and retained for further reference and maintenance. 2. Safety • Before installation or maintenance, ensure the mains supply to the programmable room thermostat is switched off and the circuit supply fuses are removed or the circuit breaker turned off. •...
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• Batteries: 2x 1.5V AA • CE Compliant • Dimensions (H x W x D): 90 x 135 x 30mm TRT035N Front View Digital room temperature/time Light/Frost +/- setting buttons display (illuminated on setting) protection button (illuminated on setting) 10°C to 35°C...
4. Siting • The TRT035N must be sited where it will not be influenced by heat sources, for example above a radiator or a television or a refrigerator/freezer or in direct sunlight or subjected to draughts. • The product requires air circulation, so do not position above or below shelving or other wall mounted obstacles.
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5.8 To reinstall the unit onto the wall plate, first ensure the wall plate retaining screws are loosened enough to clear the TRT035N body, then engage the top of the TRT035N onto the wall plate retaining tabs, and push firmly downwards and then upwards. There will be some resistance from the terminals.
6. Connection Diagram Connect the 230V 50Hz mains supply and load cables to the terminal block which are marked as follows; • Note: Check boiler instructions before connecting. Switch Live from NO (normally open contact for heating) to bolier 230V AC BOILER 50Hz MAINS...
DIP switches on the rear of the unit. When set to the ON position, the heating will turn on 20 minutes earlier, for every 1°c below your chosen set point. A reset will be required after changing the DIP switch positions. TRT035N Rear of Unit DIP switch for OST setting DIP switch for temperature...
8. Reset from Power-up • Restore mains to the unit after making sure to check all system wiring is complete, and after you have selected the desired DIP switch settings. • Press the reset button located beneath the flip down cover on the front of the unit, all of the characters will briefly appear on the display, followed by the setting the clock screen.
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• The year will flash, use the Up/Down arrow buttons to alter the year and press the Select button once to confirm. Use the Up/Down arrow Use the Select The year will flash buttons to change the year button to confirm •...
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Start time/temperature period, and so on. The closest you can get to turning the TRT035N programmable thermostat OFF, will be to set the selected period(s) to 10°C, this way the heating will not turn ON unless the temperature drops below these set points.
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• There are 6 time/temperature controlled periods, and the default programme for every day is as follows; 06:00AM 21°C 08:00AM 18°C 12:00PM 21°C 02:00PM 18°C 04:00PM 21°C 10:00PM 18°C • The Copy function can be used to duplicate Start time/temperature periods, as detailed further in the instructions (read the instructions in full before you begin).
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10.2 The Day of the week will flash (e.g. Mon), use the Up/Down arrow buttons if you need to choose a different day of the week, and then press the Select button once to confirm Use the Up/Down arrow Use the Select Mon will flash buttons to change button to confirm...
Note: • If no button is pressed, it will time out after 60 seconds and return to the main screen showing day, time and output status. • The display light will also time out after 15 seconds after the last button is pressed •...
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10.11 Press the Copy button once to copy the selected day, the word Copy will flash along with the day of the week. Press the Copy Copy and the day of the button once week will flash 10.12 Use the Up/Down arrow button to choose the next day of the week you wish to copy the programme to e.g.
10.14 Repeat step ‘10.13’ until you have copied the programme to all of the days of the week that are required. 10.15 Press the Set button three times to exit the programme entry. Note: • If no button is pressed, it will time out after 60 seconds and return to the main screen showing day, time and output status.
Sleep Mode • Press and hold both the + and – buttons for 3 seconds. Whilst active, all output will be suspended and the display will turn OFF. • Press any key to exit Sleep Mode. Manual Override until Next Programme Change Note: The display shows the current room temperature and correct time.
Back Light • Pressing the Light/Frost protection once will illuminate the display for 15 seconds. • Any key press will also illuminate the screen, with a 15 second time out after the last button press. • Anytime the back light is ON, the Light/Frost protection button surround glows blue.
020 8450 0515. Note: A proof of purchase is required in all cases. For all eligible replacements (where agreed by Timeguard) the customer is responsible for all shipping/postage charges outside of the UK. All shipping costs...
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If you experience problems, do not immediately return the unit to the store. Telephone the Timeguard Customer Helpline; HELPLINE 020 8450 0515 or email helpline @ timeguard.com Qualified Customer Support Co-ordinators will be on-line to assist in resolving your query.
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