03 Electro-mechanical 24 hour timeswitch for controlling hot water and heating (Including Factory Replacement Units FRU) Danfoss Heating Installation and User Guide
Index Installation Product specification Installation 3 4-5 Wiring 6 What is a timeswitch? 7 Your timeswitch 8 Setting the time of day 9 Setting the programme 9-10 User 11 Temporary overrides 12 Contact details 16 INDEX Selecting operating mode For a large print version of these instructions please call Marketing on 01234 364 621. ® Certification Mark Danfoss can accept no responsibility for possible errors in catalogues, brochures, and other printed material.
Installation Instructions Please Note: Product specification Specification Power supply 230 Vac ± 15%, 50 Hz Switching action 1 x SPST, Type 1B Max. Switch Rating 264Vac, 50/60Hz, 6(2)A Timing Accuracy ±1 min./month Enclosure Rating IP20 Max. Ambient Temperature 55°C Dimensions, mm (W, H, D) 112 x 135 x 69 Design standard EN 60730-2-7 Control Pollution Situation Degree 2 Rated Impulse Voltage 2.
Installation Pre-Selector wheel Selector switch Plug-in replacement module Installation Wallplate/Terminal block (not with FRU units) 4 NB. For FRU units - go straight to to point 4 on page 5 1. Loosen the fixing screw in the base of the unit to release the grey plastic Wiring Cover. Ensure the protective tape over the thumbwheel remains in place. 2. Holding the unit clockface downwards, press firmly in the centre of the wallplate and slide it from the module as shown.
Fix the Wallplate/Terminal Block to the wall with countersunk No.8 woodscrews or to a steel box to BS 4662. 1970 or a surface mounting steel or moulded box having centres of 23/8” (60.3mm). 4. Referring to the Wiring Diagrams on page 6, connect the unit as shown. Ensure that terminals 3 and 6 are linked where required (Mains Voltage applications) with insulated cable capable of carrying full load current. 5.
103, 103E5 Wiring TYPICAL EXTERNAL CIRCUITS 103 Terminals 103 Terminals 1 2 5 3 6 Link 1 2 6 5 3 L L N N Com Mains Supply Mains Supply N Low voltage room stat Room Stat Load Low voltage supply/return Call L N Wiring Load Terminals 2) Control of Low Voltage Systems (e.g.
The text below has been edited and approved by the Plain English Campaign, who has issued a Crystal Mark to be displayed with it. ... an explanation for householders. Programmers allow you to set ‘On’ and ‘Off ’ time periods. Some models switch the central heating and domestic hot water on and off at the same time, while others allow the domestic hot water and heating to come on and go off at different times. Set the ‘On’ and ‘Off ’ time periods to suit your own lifestyle.
User Instructions Your timeswitch Your 103 timeswitch has one time output which can be used to control your heating and hot water at the same times. Normally the 103 provides 2 ON periods and 2 OFF periods each day. However 1 ON and 1 OFF period can be obtained by using the Pre-Selector Wheel (see page 12). You can choose whether the 103 controls your hot water & heating at the programmed times, constantly ON or constantly OFF.
Setting the time of day The dial on the front of the 103 displays the hours of the day using the 24hour clock. Turn the dial clockwise until the correct time is aligned to the TIME mark (as shown). IMPORTANT: turn the dial clockwise only ! Remember you will have to re-set the time after a power-cut, and also when the clocks change in Spring and Autumn. Setting the programme (Tappets A, B, C, D) 1. If not already done so, remove the dial cover (turn slightly to the left & pull off ) 2.
Example: If you want your system ON between 8am and 10am and again between 4pm and 11pm, set the tappets as shown. (A to 8, B to 10, C to 16, D to 23). A = 1st ON B = 1st OFF C = 2nd ON Setting the programme D = 2nd OFF Remember: Red tappets (A and C) switch ON Blue tappets (B and D) switch OFF 3. Ensure that the installer has removed the protective tape covering the pre-selector wheel. 4. Using the dial knob, rotate the dial completely at least twice, clockwise only, to clear the mechanism.
Selecting operating mode The Rocker Switch on the side of the unit is used to select how your 103 controls your hot water & heating system.
Overriding the programe using the PreSelector wheel The pre-selector wheel can be used to override the set programme on occasions when you need to change from your normal heating routine. Temporary overrides By turning the wheel anti-clockwise you can turn the unit ON when it is OFF and vice versa. Example: Your programme is set so that your heating comes on at 4pm but you arrive home earlier than usual, at 2pm and need the heating ON immediately.
Still having problems? Call your local heating engineer: Name: Tel: For problems relating to your heating controls ... Visit our website: www.heating.danfoss.co.uk Email our technical department: ukheating.technical@danfoss.com Call our technical department 01234 320 256 (9:00-5:00 Mon-Thurs, 9:00-4:30 Fri) For a large print version of these instructions please contact the Marketing Services Department on 01234 364 621.
