LightwaveRF JSJSLW452 Instruction Manual

lightwaveRF

Connect Series

2-Way Dimmer (2 Gang)

Model Nos. JSJSLW452

Instruction Manual

www.megamanuk/lightwaverf.com

Get Started

What do I need?

How do I get started?

If the Dimmer has already been installed, refer to
the quick setup guide on the following pages to
get going. If you are planning to install the
Dimmer, please refer to the installation instruc­tions that follow quick setup. This will guide you
through the installation process.

Help Video

You can scan this QR code with your
smartphone. It will take you to a video that will
help guide you through setup and installation.

To install the Dimmer, you will need to remove
and replace the existing lightswitch. This is
usually straightforward, but you must ensure that
there is a suitably deep housing (backbox) and
understand how to safely turn o the electricity
supply. You will also need suitable electrical
screwdrivers.

IMPORTANT: Please retain these instructions for guidance on how to link
Remote Handsets and other LightwaveRF Controllers. For additional
guidance please visit www.megamanuk.com/lightwaverf

Amber LED.

When illuminated,

Dimmer is o.

‘On’ Button.

Hold to raise light

level.

‘O’ Button.

Hold to lower light

level.

Blue LED. When

illuminated,

Dimmer is on.

Overview

Quick Setup Guide

Quick Setup

Quick Setup Guide

• Tap either ‘on’ (top) button once to
switch the Dimmer on (Blue LED
indicator will illuminate). Press and hold
the on button to raise the light level.

• Tap either ‘o’ (bottom) button once
to switch the Dimmer o (Amber LED
indicator will illuminate). Press and hold
to lower the light level.

Manual Dimming

Quick Start Guide

NOTE: it is important to install this product in accordance with the following
instructions. Failure to do so may void your warranty.

LightwaveRF is fully legal to install in your own home. However, if in doubt,
always consult a qualified electrician.

Installation

Switched live

(live out)

Screw

Mounting

hole

Live in

2-Way

Switching

Connection

Installation

• The 2-Way Dimmers use standard 3-core connecting cables; however,
because they are electronic dimmers, they utilise one of the cores as a
signal cable (‘S’) running between the Dimmers (as shown on the diagram).
This is low voltage only and should not be connected to 230V mains;
serious damage will occur.

• Up to six 2-Way Dimmers (six gangs) can be connected to a standard
LightwaveRF Dimmer Switch. Each 2-Way can be connected directly to the
standard Dimmer, or connected to each other in a ‘daisy-chain’. This
provides an alternative to using intermediate switches (maximum cable
length of 100m).

VERY IMPORTANT

• A LightwaveRF 2-Way Dimmer (each gang) needs to be used in conjunc­tion with a standard LightwaveRF Dimmer to perform 2-Way Switching. The

LightwaveRF 2-Way Dimmer cannot be used in conjunction with a
standard lightswitch. This will cause damage to the Dimmer.

• Never install and run power to a 2-Way Dimmer before first installing and
connecting the corresponding standard LightwaveRF Dimmer. Serious
damage could be caused to the unit.

Installation

1. IMPORTANT: Turn o the mains electrical supply.

2. Ensure that the wall (back) box has a minimum depth of 35mm.

3. Remove and disconnect the existing light switch (if applicable). It may be

useful at this point to mark out or take a photograph of the connections to
the existing switch so that the correct wires can easily be transferred to the
new Dimmer. Some existing wiring configurations can be complex so take
care.

4. Gently remove Dimmer faceplate by inserting a screwdriver into the

bottom slot/s and lifting away from the unit as shown.

Installation

5. Connect the wiring as per the wiring diagram on the following page.

Ensure that the terminals are properly tightened and that no bare wire is
visible. Be aware that existing wiring circuits are not always correctly
coloured, and that there may be other wired connections present in the back
box; if in doubt, always seek the advise of a qualified electrician.

NOTE: The 2-Way Dimmer does NOT require a mains neutral wire to be
connected; it only requires ‘live in’, ‘switched live out’ and a ‘signal’ connection.

7. Screw the Dimmer Switch to the

mounting box and ensure that the
screws are suciently tight to support
the product, but do not over tighten as
this may cause the chassis to bend.
Ensure that the plastic spacer is
correctly aligned and that no wires are
trapped between the Dimmer Switch
and the back of the back box.

6. Any earth wires present must be attached either to the earth terminal

located in the back box or capped with a strip connector. The Dimmers are
double insulated so are not required to be earthed directly.

Installation

Installation

IMPORTANT: The signal cable input
marked ‘S’ must ONLY be connected
to the wire running to the other
Dimmer NOT live mains; this will
cause irreparable damage.

3-Core
Cable

From Lighting Circuit

Live

Live

Earth

Switched Live

Signal Cable

Switched Live

Standard Dimmer 2-Way Dimmer

8. Replace the plate – a ‘click’ sound

should be heard to signify that the plate
has been correctly replaced.

Important things to Consider

• Wattage ratings for the Dimmers are

per gang. The maximum circuit

load for
each 2-Way Dimmer Gang is equal to
the maximum load on the standard
LightwaveRF Dimmer it is connected to
(i.e. 250W or 210W).

Installation

• ONLY Dimmable lamps can be used even if the Dimmers are used solely to
switch between the on and o states without dimming. This is because the
technology used in an electronic dimmer is fundamentally dierent to that
of a simple on/o switch and requires compatible lamp technology.

NOTE: Compatibility between electronic Dimmers and LEDs can be
aected if the total circuit loading is very small. Total LED load decreases
(relatively) as it is shared between a greater number of connected
Dimmers; therefore, as more 2-Way Dimmers (up to 6) are added to a
single circuit, it is possible that LED performance may become less stable.

Compatibility

Ensuring the compatibility of your lamps (bulbs) with LightwaveRF Dimmers
will ensure that you get the best experience from your lighting setup.

LightwaveRF Dimmers are compatible with

• Standard mains voltage incandescent, Eco Halogen & low energy

incandescent lighting (min 20W, max 250W)

• GU10 and equivalent HI spot mains halogen lamps

• Dimmable Electronic Low Voltage Transformers (20W - 250W max.)

• Inductive Transformers (40 – 170VA max.)

• Selected dimmable (only) LED lamps (see www.lightwaverf.com for

compatibility guide).

LightwaveRF Dimmers are NOT compatible with

• Wirewound transformers (generally older style)

• Electric motors

• Non dimmable LEDs

• CFLs

• CFL tube arrays

Compatibility & Lamps

Troubleshooting

Problem: The 2-Way Dimmer will not operate the lights and the LEDs on

the Dimmer do not light up.

Solution: Firstly, check that there is power to the Dimmer. Make sure that

the connected lamps (bulbs) are functioning correctly; the Dimmer Switch
will not run unless it has a functioning lamp/s to complete the circuit.
Ensure that the maximum LED/incandescent loading has not been
exceeded (if so this may have damaged the Dimmer). Check that the wiring
is correct; it is important that the live, switched live and signal wires are
attached to the correct terminals; a common mistake is to reverse the live
and switched live connections. Remember, the signal terminal must NOT be

connected to 230V mains. If these measures fail, contact technical support

via www.lightwaverf.com.

Problem: The 2-Way Dimmer has power (LEDs on) but will not turn on

the

Lights/turns on then o by itself/ will not operate from the other Dimmer.

Solution: Check that the wiring is correct; it is important that the live,

switched live and signal wires are attached to the correct terminals; a
common mistake is to reverse the live and switch live connections which
may cause the 2-Way Dimmer to function improperly. Remember, the signal
terminal must NOT be connected to 230V mains. If these measures fail,
contact technical support via www.lightwaverf.com.

Problem: The LED/CFL lamps that I am using flash / do not dim properly.
Solution: Ensure that the lamps being used are dimmable; non dimmable

lamps are not compatible with LightwaveRF Dimmers. If the problem
persists, the LED/CFL lamps may not be compatible with the Dimmers;
please contact technical help (via www.lightwaverf.com) for further advice.

Problem: The 2-Way Dimmer will not link to a LightwaveRF controller.
Solution: The 2-Way Dimmer is not designed to link to a LightwaveRF

controller and therefore does not contain an RF radio module. This is
because it takes direct commands, instead, from the corresponding
standard LightwaveRF Dimmer via the connected signal wire. The standard
LightwaveRF Dimmer can be linked to a controller and passes on
commands to the 2-Way Dimmer automatically.

Problem: The Dimmer keeps turning o automatically / will not turn o.
Solution: The connected standard LightwaveRF Dimmer may be Locked.

This may have been done using a Socket Locker or from the LightwaveRF
App. If it is locked on, then the 2-Way Dimmer will not turn o manually. If
it is locked o, it will be possible to turn the Dimmer on, but it will
automatically turn o again after five minutes. To unlock the Dimmer, press
the unlock button on the Socket Locker or Smartphone App. If this is not
possible, the Dimmers can be reset by turning of mains power to the circuit
for a period of 30 seconds.

Troubleshooting

Q. Can I link the 2-Way Dimmer to a LightwaveRF controller?
A. No. The 2-Way Dimmer is designed to take wired commands directly

from the standard Dimmer that it is connected to. It does not contain an RF
module and will not enter linking mode.

Q. How do I know that the Dimmer Switch will fit?

A. The Dimmer is the same size as a standard lightswitch - it will fit all back

boxes (standard lightswitch housing) over 35mm deep.

Q. Is it legal for me to install the Dimmer?

A. Yes, LightwaveRF is fully legal for you to install in your own home.

Q. Is there a maximum number of lamps I can control with the Dimmer?

A. You can control any number of lamps (bulbs) as long as they do not exceed

the maximum loading in total. Note: Max. load diers for LED/incandescent.

Q. How many devices can I have on the LightwaveRF system?

A. Each device has 6 memory slots for up 6 controllers (one of these can be

the Lightwave Link allowing up to 6 smartphones to control hundreds of

devices.

Q. Can I use LED or CFL lamps?

A. Most LEDs can be controlled as long as the lamps are dimmable variants

(see www.lightwaverf.com for guidance). CFLs are not compatible.

FAQs

Q. Can I use non dimmable lamps (bulbs) if I don’t dim them?

A. No. The lamps must be dimmable even if they are not dimmed; the

technology in the lamp must be compatible with that of the Dimmer.

Q. What if I need a switch to operate on/o only?

A. A LightwaveRF Relay in conjunction with a Wire-free Switch can be used

for on/o switching in place of the Dimmer (see www.lightwaverf.com).

Q. Can I separate and change individual switches in multigang Dimmers?

A. Multigang Dimmers are not designed to have their switch modules

separated and interchanged; disconnecting and removing Dimmer Modules
will invalidate the warranty.

Q. What Happens after a power cut?

A. Standard LightwaveRF Dimmers default to the o position after a power

cut. The 2-Way Dimmer will, therefore, also default to o. This can be overrid­den using the Lightwave Link to set default status for devices on power up. See
www.lightwaverf.com for details.

Q. Is it normal for the Dimmer to get warm when it is turned on?

A. Yes it is perfectly normal for Dimmer Switches to feel warm to the touch if

left on for a period of time close to maximum load. It is completely safe.

FAQs

Specification

Input rating: 220-240V~ 50Hz.

Output rating: 3W~250W max (per gang)

Incandescent Load: 20W min 250W max (per gang)

Back Box Depth: 35mm min.

Earthing Requirement: Not essential (double insulated)

Standby Energy Use: Less than 1W (per gang)

Wiring: Neutral wire NOT required

Warranty: 2 year standard warranty

Technical Specification

www.megamanuk.com/lightwaverf

lightwaveRF

2 Quadrant Park

Mundells

Welwyn Garden City

Herts

AL7 1FS

01707 386035