LightwaveRF JSJS LW901 Operation Manual

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Room Thermostat

Operation Manual

Model No’s: JSJS LW901

It is important to install this product in accordance
with the tting instructions below. Failure to do so
may render your guarantee void.

IMPORTANT: PLEASE RETAIN THESE INSTRUCTIONS
FOR FUTURE REFERENCE AND FOR GUIDANCE ON
THE ASSOCIATION OF REMOTE HANDSETS. FOR
HELP AND SETUP GUIDANCE PLEASE VISIT
www.lightwaverf.com

OVERVIEW:

KEY

A Holiday function , set-back/comfort
temperature ( ), manual operation (Manu),
automatic operation (Auto)

B Day of the week, "battery empty" symbol ( )

C Menu button: Press and hold down the button for

more than 3 seconds to open the conguration
menu

D Colder/arrow button: Settings / temperature
adjustments

E Heating periods set within weekly program

F Current temperature setting, time and date
indicator, menu items, functions

G button: For switching between set-back and
comfort temperatures

H OK button: For conrming/saving and pairing

I Warmer/arrow button: Settings/temperature
adjustments

The LightwaveRF Room Thermostat is a user-friendly
device for programming and remotely controlling a
single or several LightwaveRF Radiator Valves. The
Room Thermostat allows you to conveniently set a
weekly heating schedule for individual radiators. This
schedule is then automatically adopted by any Valves
that are linked to the Thermostat. The Room
Thermostat also monitors the room temperature and
provides accurate information on which basis the
LightwaveRF Radiator Valves make their energy
saving temperature adjustments.

FITTING & INSTALLATION:

The device may only be operated indoors and must
be protected from the eects of damp and dust, as
well as solar or other methods of heat radiation. Using
the device for any purpose other than what is
described in this operating manual does not fall
within the scope of intended use and shall invalidate
any warranty or liability. This also applies to any
conversion or modication work. This device is
intended for domestic use only.

Inserting/Replacing the
Batteries

1. Remove the battery
compartment cover.

2. Insert 2 new LR06
(Mignon/AA) batteries into
the battery compartment.

3. Reattach the battery
compartment cover and
click into place.

New alkaline batteries have a life of approximately
two years. A battery symbol will indicate
when the batteries need to be replaced.

NOTE:

• Connect correctly and securely

• Do not recharge

• Keep away from children

• Do not swallow (if swallowed, seek medical advice

immediately)

• Please dispose of used batteries responsibly

Mounting of Room Thermostat

The LightwaveRF Room Thermostat is designed to be
mounted in the same room as the LightwaveRF
Radiator Valves that it controls.

1. First of all, nd an
appropriate mounting
location, making sure
that no electricity or
similar lines run there.

2. Use a pen to mark the
bore hole positions (a) of
the wall mount on the
wall.

3. If you are working with a stone wall, you should
drill the holes using a 5 mm drill. Then insert a plug
into each of the drilled holes. If you are working with
a wooden wall, you should drill the marked holes (a)
using a 1.5 mm drill.

4. Now use screws to x the wall mount to the wall.

5. Slide the Room Thermostat down from above onto
the wall mount.

SETUP & OPERATION:

1. Setting the date and time of day

The rmware version number will be displayed briey
once you have inserted/replaced the batteries and
then you will be automatically prompted to set the
date and time of day.

• Use the arrow buttons
(B/D) to set the year (A).

• Conrm with OK (C).

• Use the arrow buttons

(B/D) to set the month (A).

• Conrm with OK (C).

• Use the arrow buttons

(B/D) to set the day (A).

• Conrm with OK (C).

• Use the arrow buttons

(B/D) to set the hour (A).

• Conrm with OK (C).

• Use the arrow buttons

(B/D) to set the minute (A).

• Conrm with OK (C).

After setting the time and date the display will then
switch to normal view.

Operating modes

To switch between the 3 operating modes described
below, press the menu button briey:

• Holiday function : Set a temperature that is to

be maintained until a xed point in time.

• Manu: Manual operation - The temperature is set

manually using the arrow buttons.

• Auto: Weekly program - The temperature is

controlled automatically in accordance with the
stored weekly program.

Conguration menu

The conguration menu can be used to modify
settings. To access this menu, press and hold down
the menu button (for more than 3 seconds).

• PRO: For setting the weekly program (see Section "8

Setting the weekly program")

• DAT: For modifying the time of day and date

• CAL: Time setting for descaling function

• DST: Automatic switch-over at the start or end of

daylight saving time can be deactivated.

• RES: For restoring the factory settings

Use the arrow buttons to select menu items and the
OK button to conrm your choice. Press the menu
button again to return to the previous level. After 60
seconds without anything happening, the menu will
close automatically.

Setting the weekly program

The weekly program allows two separate heating
phases (four switching times) to be set for each day of
the week. The programmed settings only apply to the
selected days. Outside these times the Radiator Valve
reduces the temperature to the specied setback
temperature.

1. Press and hold down the Menu button for longer
than 3 seconds.

2. "PRO" appears on the display.

3. Conrm by pressing the OK button.

4. "DAY" appears on the display. You can use the
arrow buttons to select a single day of the week, all
weekdays, the weekend, or the entire week
(weekdays has been selected in the example).

5. Conrm your selection
by pressing the OK button.

6. The rst heating phase
switching time is displayed
(6:00); you can change this
time with the arrow
buttons. Heating intervals
are also shown by means
of bars.

7. Conrm by pressing the
OK button.

8. Set the temperature that the room should be at

from 6:00 onwards (21.0°C in the example).

9. Conrm your selection by pressing the OK button.

10. The end time for the rst heating interval is
displayed (9:00 in the example); you can change this
time with the arrow buttons.

11. Conrm by pressing the OK button.

12. Repeat this procedure for the second heating
interval

In Auto mode, the set weekly program is adopted by
the paired LightwaveRF Radiator Valves
automatically. In auto mode (weekly program), the
temperature can be changed at any time using the
arrow buttons. The modied temperature will then
remain the same until the next point at which the
program changes.

Weekly program: Examples

Each Valve allows you to store up to 2 heating
periods (4 switching times) with individual
temperature settings for each day of the week. The
factory set-ting consists of two heating phases (from
6:00 until 9:00 and from 17:00 until 23:00
respectively) for every single day of the week:

from 00:00 to 06:00 17.0°C
from 06:00 to 09:00 21.0°C
from 09:00 to 17:00 17.0°C
from 17:00 to 23:00 21.0°C
from 23:00 to 23:59 17.0°C

The display shows bars for every heating interval. In
this example, no bars are shown for the interval from
0:00 to 6:00. Bars are only shown on the display for
the intervals from 6:00 to 9:00 and from 17:00 to
23:00.

If a room also needs to be heated at around noon, the
corresponding program might look like this:

Monday to Sunday

from 00:00 to 06:00 17.0°C
from 06:00 to 14:00 22.0°C
from 14:00 to 17:30 17.0°C
from 17:30 to 23:30 21.0°C
from 23:30 to 23:59 17.0°C

If you have a home oce and only want it to be
heated during the day on working days, you can
program the following times:

Monday to Friday

from 00:00 to 08:30 17.0°C
from 08:30 to 17:00 21.0°C

from 17:00 to 23:59 17.0°C

Saturday to Sunday

from 00:00 to 23:59 17.0°C

Display content during normal operation

During normal operation, the following are
displayed: heating periods, operating mode,
temperature setting and day of the week. The bars
indicating the weekly program's heating periods for
the current day. For an example, please refer to "9.
Weekly program: Examples".

Pairing with a LightwaveRF Radiator Valve

In order to enable communication between radio
components, the devices have to be paired to one
another. Proceed as follows to allow LightwaveRF
Radiator Valves to be managed via a Room
Thermostat:

1. Set the radiator valve to LEARN mode. For more
information on this, refer to the operating manual for
the Radiator Valve.

2. Press and hold down the OK button on the Room
Thermostat for longer than 3 seconds to transmit the
pairing code.

3. "LEA" and the remaining pairing time (starting at 30
seconds) appear on the display and the Room
Thermostat transmits a pairing code.

4. When the Radiator Valve receives the pairing signal,
"ECF" appears on its display.

5. The Room Thermostat can be paired to as many
LightwaveRF Radiator Valves as you wish. Repeat the
process to pair additional devices.

NOTE: If there is interference in terms of radio
communication, the Radiator Valve continues to
regulate the temperature autonomously, in
accordance with the most recent specications made
by the Room Thermostat.

NOTE: If the batteries in a radio energy-saving
controller have been replaced, it can take up to 11/2
hours until the actuator starts to receive data from
the Room Thermostat again and switches to "ECF"
mode.

Comfort and Set-back Temperatures

The comfort/set-back temperature button
provides an easy and convenient way of switching
between these two temperatures. The factory
settings are 21.0°C and 17.0°C respectively. To adapt
them, proceed as follows:

1. Press and hold down the comfort/set-back
temperature button for more than 3 seconds.

2. The sun symbol will appear on the display
along with the current comfort temperature.

3. Use the arrow buttons to modify the temperature;
press OK to conrm.

4. The moon symbol will appear together with
the setback temperature.

5. Use the arrow buttons to modify the temperature;
press OK to conrm.

The temperature can even be modied in Auto mode
at any time by using this button. The new setting will
be retained until the program's next switching time.

Setting the holiday function

If you want a xed temperature to be maintained for a
set period of time while you are on holiday or during
a party, you can make use of the Holiday function.

1. Press and release the menu button repeatedly until
the suitcase symbol appears on the display.

2. Use the arrow buttons to set the end of the time
period during which the temperature is to be
maintained.

3. Press the OK button to conrm.

4. Then use the arrow buttons to set the date.

5. Press the OK button to conrm.

6. Use the arrow buttons to set the temperature; press
OK to conrm.

7. The display will ash to conrm your settings. The
set temperature will remain until the specied time.
The Room Thermostat will then adopt Auto mode.

Setting routine descaling

Routine descaling is carried out once a week to
protect against valve calcication. The user can
change the time at which this function is performed
(factory set is 12:00 on Saturdays).

1. Press and hold down the menu button for more
than 3 seconds.

2. Use the arrow buttons to select the "CAL" in menu.

3. Conrm with OK.

4. Use the arrow buttons to set the day of the week.

5. Conrm with OK.

6. Use the arrow buttons to set the time.

7. Conrm with OK.

Restoring the factory settings

You can reset the Room Thermostat to its initial state.
This will clear all the settings that have been entered
manually.

1. Press the menu button for more than 3 seconds.

2. Use the arrow buttons to select the "RES" in the
menu.

3. Conrm with OK.

4. "ACC" will appear on the display; press OK to
conrm.

Child-proof lock

The LightwaveRF Radiator Valve can be locked to
prevent manual operation:

1. To activate/deactivate the lock, briey press the
Menu and buttons at the same time.

2. Once the function is active, "LOC" will appear on

the display.

3. To deactivate the function, press both buttons
again.

Setting the heating break

If the heating is turned o during summer, the
batteries in the Radiator Valves can be put in energy
saving mode.

To activate this, proceed as follows:

1. In manual mode (Manu), press and hold the right
arrow button (increase temperature) until "ON"
appears on the display.

2. To end, exit manual mode (Manu) or press the left
arrow button (decrease temperature).

Setting frost protection mode

If you do not want the room to be heated, the valve
can be closed. It will only be opened again if there is a
risk of freezing due to frost. Limescale protection
measures remain in place.

To activate this, proceed as follows:

1. In manual mode (Manu), press and hold the left
arrow button (decrease temperature) until "OFF"
appears on the display.

2. To end, exit manual mode (Manu) or press the right
arrow button (increase temperature).

NOTE: If the RF range between the transmitter and
receiver is too great to achieve reliable operation, the
LightwaveRF SIGNAL BOOSTER may be used in
conjunction with this product to increase the signal
strength over greater distances.

SPECIFICATION:

Supply voltage: 3 V
Max. current consumption: 30 mA
Batteries: 2x LR6 batteries AA
Battery life: Approx. 2 years
Display: LC display

Radio frequency: 868.3 MHz

Range (open eld): 20 m
Dimensions (W x H x D): 70 x 65 x 20 mm

Birmingham Science Park Aston

Faraday Wharf

Holt Street

Birmingham

B7 4BB

Tel: [phone]

Email: [e-mail]