103
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 |
3 |
Installation |
4-5 |
Wiring |
6 |
User |
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What is a timeswitch? |
7 |
Your timeswitch |
8 |
Setting the time of day |
9 |
Setting the programme |
9-10 |
Selecting operating mode |
11 |
Temporary overrides |
12 |
Contact details |
16 |
INDEX
For a large print version of these instructions please call Marketing on 01234 364 621.
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Danfoss can accept no responsibility for possible errors in catalogues, brochures, and other printed material. All trademarks in this material are property of the respective companies. Danfoss and the Danfoss logotype are trademarks of Danfoss A/S. All rights reserved.
2
Installation Instructions
Please Note:
This product should only be installed by a qualified electrician or competent heating installer, and should be in accordance with the current edition of the IEEE wiring regulations.
Product specification
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Specification |
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Specification |
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Power supply |
230 Vac ± 15%, 50 Hz |
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& |
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Switching action |
1 x SPST, Type 1B |
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Installation |
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Max. Switch Rating |
264Vac, 50/60Hz, 6(2)A |
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Timing Accuracy |
±1 min./month |
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Enclosure Rating |
IP20 |
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Max. Ambient Temperature |
55°C |
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Dimensions, mm (W, H, D) |
112 x 135 x 69 |
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Design standard |
EN 60730-2-7 |
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Control Pollution Situation |
Degree 2 |
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Rated Impulse Voltage |
2.5kV |
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Ball Pressure Test |
75°C |
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3
Installation
Installation
Pre-Selector wheel
Selector switch
Plug-in replacement module
Wallplate/Terminal block (not with FRU units)
NB. For FRU units - go straight to to point 4 on page 5
1. |
Loosen the fixing screw in the |
wallplate/ |
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base of the unit to release the |
terminal |
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block |
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grey plastic Wiring Cover. Ensure |
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the protective tape over the |
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thumbwheel remains in place. |
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2. |
Holding the unit clockface |
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downwards, press firmly in the |
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centre of the wallplate and slide |
plug-in |
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module |
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it from the module as shown. |
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4
3. |
Fix the Wallplate/Terminal Block to the wall with |
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countersunk No.8 woodscrews or to a steel box to BS 4662. |
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1970 or a surface mounting steel or moulded box having |
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centres of 23/8” (60.3mm). |
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4. |
Referring to the Wiring Diagrams on page 6, connect the |
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unit as shown. Ensure that terminals 3 and 6 are linked |
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where required (Mains Voltage applications) with insulated |
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cable capable of carrying full load current. |
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5. |
Ensure all dust and debris has been cleared away from |
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the area, then plug the module firmly into the wallplate |
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ensuring that the hook at the top of the wallplate engages |
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with the slot at the back of the body. Press the module |
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down until it locates solidly. |
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6. |
Cut a cable aperture in the Wiring Cover if necessary; |
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replace the Wiring Cover, and tighten the fixing screw. |
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7. |
Switch on Mains & test for correct operation as follows: |
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i) |
Remove protective tape from pre-selector wheel. |
Installation |
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ii) |
Remove dial cover & rotate the clock dial two |
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complete revolutions to clear the mechanism. |
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ii) |
Check that all positions of the Selector Switch |
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and Tappets operate correctly. (See instructions |
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in User Booklet.) |
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8. |
Replace the dial cover. Finally leave this booklet, containing |
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the USER instructions with the Householder. |
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9. |
If the unit is to be left turned off and is in a dusty |
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atmosphere, protect the pre-selector wheel by re-affixing |
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the protective tape. |
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IMPORTANT: Remove tape prior to putting unit into |
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service. |
5 |
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