Lightwave LW922 User Manual

Smart

Radiator Valve

Quick Start Guide

Model No. LW922

Let’s get started

Before you start

You will need

Radiator with adjustable thermostatic valve

Flathead screwdriver

Adjustable spanner

Your Link Plus, smartphone and Lightwave Valve

Installing yourself?

Please note that all Lightwave products can be legally
DIY installed in your own home; however, if in doubt,

always consult a qualied electrician.

It is important to install this product in accordance with
these instructions. Failure to do so may risk personal safety,

could create a re hazard and will also void your warranty.

If conducting an insulation resistance test, any hard-wired
Lightwave devices must be disconnected from the mains,
or damage to the unit may occur.

Help video & further guidance

For additional guidance, and to watch a video that will help
guide you through the installation process, please visit the
support section on www.lightwaverf.com

Hints and tips

Get the best out of your install To install the lightwave radiator valve, you need to replace

Understanding radiator valves

your existing valve or ‘TRV’ head. TRV simply stands for
thermostatic radiator valve. These are the adjustable valves

that are tted to most domestic radiators that automatically

adjust the ow of water to maintain a constant temperature.

You can usually adjust the temperature by turning the valve
head. You can recognise if your radiator has a TRV by looking
for a moveable valve head that usually has numbers or dashes
to indicate its position.

How do I remove the existing valve?

The valve head is usually screwed onto the main valve and
can be easily removed by hand or with the aid of an adjustable
spanner if the thread is tight. Because you will only need to
remove the movable head and not the main valve, you don’t
have worry about any water leaking from your radiator.

In the box

Radiator Valve

Specication

RF frequency:

868 MHz

Batteries:

2x 1.5v (AA)

Warranty:

2 year standard warranty

How does it work?

The Lightwave Radiator valve head works in a similar way to a
normal valve head in that it pushes the pin of the main radiator
valve up and down in order to open and close it. This controls

the water ow to the radiator and hence the temperature.

Calibration

Once the Lightwave valve securely is in place, you can then
insert the batteries. The device will calibrate for a minute or
so, but don’t worry as this is normal. A whirring noise means
that the Lightwave valve head is adjusting the radiator valve
position to regulate the temperature.

www.lightwaverf.com

Environmentally
friendly

Old electrical appliances must
not be disposed of together with
residual waste, but have to be
disposed of separately. The disposal
at the communal collecting point
via private persons is for free.
The owner of old appliances is
responsible to bring the appliances
to these collecting points or to
similar collection points. With this
little personal effort, you contribute
to recycle valuable raw materials and
the treatment of toxic substances.

disposal

EC Declaration of Conformity

Responsible Authority:

LightwaveRF PLC,
Innovation Campus Birmingham
Faraday Wharf, Holt Street,
Birmingham, B7 4BB

Tel: [phone]
Email: [e-mail]

Model Number(s): LW922

Description: Radiator Valve

Directives this equipment
complies with: 2006/95/EC,

The Low Voltage Directive,
N/. 2004/108/EEC, The
Electromagnetic Compatibility
Directive, 1999/5/EC R&TTE
Directive, 93/68/EEC CE
Marking Directive

Standards Applied in order to
verify compliance

Safety: BS EN 60730-1: 2011

Health: R&TTE: EN 301 489-1 V1.9.2:

(2011-09), EN 301 489-3 V1.4.1:
(2002-08), EN 300 220-1 V2.1.1:
2006, EN 300 220-2 V2.1.2: 2007,
EMC: EN 301 489-1 V1.9.2: (2011-09),
EN 301 489-3 V1.4.1: (2002-08), EN
55022: 2010, EN 61000-3-2: 2006
+A1: 2009 +A2: 2009 Class A, EN
61000-3-3: 2008, EN61000-4-2:
2009, EN 61000-4-3: 2006 +A1: 2008
+A2: 2010, EN 61000-4-4: 2012, EN
61000-4-5: 2006, EN 61000-4-6:
2009, EN 61000-4-11: 2004

For and on behalf of
LightwaveRF PLC

J Shermer,

CTO

Pin insert.

Screw Thread.

Screw Thread.

Pin insert.

GETTING STARTED

1

Install the Valve

The easiest way to learn how to install
the Lightwave Valve is to watch our short
installation video which is accessible at

www.lightwaverf.com/product-manuals

Carefully follow the instructions in this section
in order to install the Lightwave Valve. Please
remember that live electricity is dangerous. Do not

take any risks. If in any doubt, consult a qualied

professional. For other advice, please contact our
dedicated technical support team on 0121 250 3625.

COLLAR TYPES

1.1 Removing the existing Radiator Valve

To attach the Lightwave Radiator Valve you will rst need to ensure that
you have a suitable thermostatic valve tted to your radiator (such as

the one pictured) and unscrew the existing valve head. This can usually
be done by hand and does not require any special tools. An adjustable
screw driver maybe useful if the valve head is tightly secured.

Note: Removing the existing valve head should not cause any water
leaks as the main body of the valve remains sealed

1.2 Screw t the Lightwave Radiator Valve

The Lightwave Radiator Valve will screw t the majority of existing

thermostatic valves without alterations. There are, however, several
adapter collars provided to compensate for the most typical variations
in the diameter of the valve and screw thread.

Valve Head.

There are 2 types of collar (type A, type B). If type A ts the valve

screw thread, this is the more desirable collar to use. It has 4
insert pin length options provided for the collar. The most suitable

pin is the one that (when in the collar) replicates the length of the
existing pin. Type B provides a clamp t around the valve body and

can be tightened using the screw provided.

1.3 Insert the batteries

The battery compartment is located at the top of the Lightwave
Valve. Remove the cover and insert 2x AA batteries. Once the
batteries are inserted, the Lightwave Valve will automatically

calibrate itself (this can take up to a minute). This requires it to be

attached to the radiator, therefore do not insert the batteries until
the Lightwave Valve is securely installed. If the ‘error’ LED lights
up during calibration, the radiator valve is not seated properly and
may need adjustment.

‘Off’ LED.

When illuminated the
TRV is closing.

When illuminated the

‘On’ LED.

TRV is opening.

2

Type A

With in pin inserted.

Type B

Without pin.

Link the Valve

To be able to command the Socket,
you will need to link it to the Link Plus.

Valve.

Please follow the in App instructions which will explain
how to link devices.

Standby button.
Turns radiator on
/ off.

Screw collar to attach to

radiator valve.

Boost button.

Increases the

temperature for

one hour.

Linking button.

Press to enter

linking mode.

Other Valve

3

Follow Lightwave

Visit www.lightwaverf.com to discover the latest

product updates and nd out what else you can do

with Lightwave products. You can also sign up to
our newsletter or keep up to date with the latest
updates and releases via Twitter and Facebook.

functions

When prompted, press and release the ‘Link’ button on the

Lightwave Valve (the on and off LEDs will ash alternately).

Send the linking command from the App (the in-App instructions
will explain how to do this). The ‘on’ LED should ash to indicate a

successful link.

The boost button

Pressing the boost button on the Lightwave Valve raises
the target temperature by a few degrees above the current
room temperature for the duration of one hour. If the target
temperature is already several degrees higher than the actual
room temperature, then pressing boost will simply match
this temperature.

The standby button

Pressing the ‘standby’ button on the Lightwave Valve toggles
between the fully open and fully closed positions for the duration
of one hour. This will turn the radiator on or off by enabling or

preventing the ow of hot water to it. When the ‘standby’ button

is pressed, a green light will illuminate to indicate that the valve
is opening, or an amber light will illuminate to indicate that the
valve is closing.

Press

Link

Understanding the indicator LEDs

Steady green ‘on’:
Radiator valve opening

Steady amber ‘off’:

Radiator valve is closing

Alternating on/off (longer on LED):

Linking mode

Alternating off/on (longer off LED):

Unlinking mode

Steady red & amber:

Valve jammed or wrong pin

Steady red & green:

Not mounted correctly / wrong pin

Flashing red:

Low battery (The App will also
report low battery status).