Instructions For Fitting VARILIGHT Intelligent Safety Dimmerswitches
Thank
you for choosing a VARILIGHT intelligent safety dimmerswitch designed for
all incandescent lighting circuits (including low voltage transformer circuits).
Use only on an electricity supply of 200-250 volts AC.
This
dimmerswitch complies with European Safety Regulations (IEC 669-2-1 or BSEN
60669-2-1) when used in lighting circuits containing MCBs (minature circuit
breakers). These can be rated at 6A, 10A or 16A (preferably 6A for lighting
circuits). Your guarantee is not affected if you have an older lighting circuit
protected by fuse wire links.
Applications:
Your VARILIGHT intelligent safety dimmerswitch is suitable for:-
*Mains voltage incandescent bulbs (eg. GLS).... load as per label, adding the wattages of the bulbs the dimmer will control;
*Good
quality mains voltage halogen bulbs.....
load
as per label, adding the wattages of the bulbs the dimmer will control;
*Electronic
low voltage lighting transformers and wire-wound low voltage lighting
transformers.... de-rate by 20%,
adding the VA ratings of the transformers, not the wattages of the bulbs, eg.
load a 400W/VA dimmer up to 320W/VA; load a 300W/VA dimmer up to 240W/VA.
Do
not use
this dimmerswitch for fluorescent bulbs or energy saving bulbs or fans. The
dimmerswitch will eventually be damaged beyond repair if used for these
applications. Incorrect use will make your guarantee invalid.
Troubleshooting:
Dimmers must not be overloaded or underloaded. Check the label on the back of your dimmerswitch for the maximum ratings of each module and adjust this if necessary according to the load type (see above). The minimum loads for each are also shown on the label.
When using this dimmerswitch to control low voltage lighting transformers, choose transformers with a maximum rating close to the rating of the bulbs they supply (eg. Use a 60VA transformer to control a 50W low voltage bulb). Do not overload the transformers. Due to the high capacitance of the load presented by some electronic transformers no more than 5 transformers per dimmer-module circuit are allowed.
Note: Certain transformers may not behave according to their power rating when used with a dimmer. An overload will always result in the safety features of this dimmerswitch turning down the brightness. If this happens and you have followed these instructions then it is likely that your transformers present a bigger load. In this case, change your transformers to ones which do not appear as an overload, remove one (or some) transformer(s) from the circuit or choose a higher rated dimmer instead.
Fitting
your dimmer:
Read
the instructions below carefully. Incorrect installation may damage the dimmer
beyond repair. In case of any doubt or difficulty consult a qualified
electrician.
1.
Switch
off at the mains, then remove the existing switch and disconnect the wiring from
the switch terminals at
2. Ensure that any wall box is free of plaster lumps or projecting screw heads. Dimmerswitches on single-sized plates can be fitted to wall boxes having 60.3mm screw fixing centres and those with double-sized plates to wall boxes with 120.6mm fixing centres. Most models can be fitted into a box with a minimum depth of 25mm. A box having 4 fixing lugs cannot be used without modifying it. The top and bottom lugs must be broken off or bent flat.
3.
To
connect the wiring for 1-way or 2-way circuits refer to the diagrams overleaf
under the heading "Typical
4.
Dimmerswitches having a metal front plate must be earthed by means of the
earthing point on the dimmer.
5.
After connecting the wires screw the dimmerswitch gently into the wall
box so that the front plate is not
6. Once installation is complete. Switch on the mains supply and switch on the dimmer, turning the control knob to give the desired light level.
A
slight buzzing may be heard from the dimmerswitch in operation. This is quite
normal.
Typical
Lighting Circuits
Your VARILIGHT intelligent safety dimmerswitch is suitable for 1-way or 2-way lighting circuits. It has a push on/push off action to switch and a rotary action to dim. There are 3 screw terminals per module.
1-Way
Circuits
In
1-way lighting circuits each light is controlled by one switch. Your
dimmerswitch should replace this switch. See Figure 1. Remove your old switch
and copy the wiring configuration for your dimmerswitch. Connect wires either
way round to the 'C' terminal and one of the 'L' terminals. The other 'L'
terminal is not used in a 1-way circuit.
To
fit 2 gang (or 3 or 4 gang) dimmerswitches treat each group of terminals at the
back of the unit as a separate dimmerswitch wiring them into the lighting
circuits as described above. If required, one terminal from each dimmer module
may be joined together with a short length of wire to copy the wiring
configuration of the old switch.
Typical
1-way Circuits
(For single dimmerswitches or each module of
Figure
1
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2-Way
Circuits
2-way lighting circuits have two switches turning the same lights on and off from 2 different locations (eg. at the top and bottom of the stairs). You must only replace one of these switches with a dimmerswitch or the lights will flicker. See Figures 2 and 3 which show typical 2-way circuits. Remove your old switch and copy the wiring configuration for the dimmer.
The wire(s) fitted in the "common" terminal of the old switch should be fitted into the "C" terminal of the dimmerswitch. The wires fitted into the other two terminals of the old switch should be fitted either way round into terminals "L1" and "L2" of the dimmerswitch.
Typical
2-way Circuits
(For single dimmerswitches or each module of a multi-gang dimmerswitch.
Figure
2
Figure 3
Using
a 2-way Dimmerswitch
Using a 2-way Dimmerswitch
|
 |
Dimmer
must replace only one
Dimmer must replace only one
GUARANTEE
Important:
In case of any defect return the dimmer to our service department. This
guarantee is in addition to and not in derogation of the statutory rights of the
purchaser and is offered so that you may have the benefit of our technical
facilities. Should any defect occur in this unit within 12 months of its
purchase we will replace or repair the defective unit free of charge provided
that:-
a)
The unit has been correctly fitted according to the instructions and has not
been used with fluorescent bulbs, energy saving bulbs, or overloaded beyond its
rating, and has only been used on 200-250V A.C.
b)
The dimmer module has not been tampered with or taken apart. However, for your
convenience, it is perfectly in order to remove a faulty dimmer module from
multi-gang dimmers by pulling off the knob and unscrewing the nut under the
knob. You will then still have the remaining modules working whilst we service
your faulty module.
c)
The unit is securely packed and safely returned to:-
Service
Department, Kilnwood, Faygate, Horsham, West Sussex, RH12 4SL
together with a letter stating the guarantee registration number below, the date
and place of purchase, the type and wattage of the lighting or other load being
controlled and the details of the fault. GUARANTEE REGISTRATION NUMBER 651.