OJ Electronics WLCT User Manual

Type WLCT

USER MANUAL

57541 09/04 - (BJ)

Type: WLCT

Fig. 1 - Buttons

Display symbols

K

I

G

H

J

F:E:

B:

C:

D:

A:

Pin button
adjust of
clock

Reset to
factory
setting

Adjustment
down

OK ­accept

Adjustment
up

Display

G: H: I:

J:

K:

Automatic
mode

Manual
mode

Time and
temperature

Day number 4-event symbol

1. Getting started

Introduction

The clock thermostat type WLCT is part of the underfloor heating system type WLM. The thermostat can be set to control one single room, or it can be set
as a master to control a group of thermostats / rooms/zones.
All the thermostats that are part of that group will follow the times and temperatures programmed into the clock thermostat. For example, if the temperature
programmed in the clock thermostat is 22°C, all the thermostats / rooms belonging to that group will then also be controlled at 22°C. Depending on the
types of thermostats used you can adjust the temperature + or -4°C in different rooms, giving a possible room setpoint of +18 to +26°C.

The clock thermostat can be programmed to work at different temperatures during the day allowing lower temperatures during times that the room is
unoccupied. Lower temperatures will lower your energy costs without reducing the comfort. All thermostats that are part of the group will follow any new
time or temperatures programmed in the clock thermostat.

When it leaves the factory, the thermostat has a preset program suitable for most installations.
You only need to set the clock and day, and define the thermostats / rooms that should belong to the group.

The thermostat has a pin button marked R (see fig. 1), allowing you, at any time, to reset the thermostat to the factory settings. These are listed at the end of
this manual with space for you to record your own weekly schedule.

Setting the thermostat into operation

☞

☞

☞

1-7

Press the UP ( ) or DOWN ( ) buttons to select
the correct hours and press OK button ( ).

Press the UP ( ) or DOWN ( ) buttons to select
the correct minutes and press OK button ( ).

Then press the UP ( ) or DOWN ( ) button to
select the correct day and press OK ( ) button.

First time power is connected the clock and day will be flashing and must be set. If you need to
adjust the time of the thermostat at a later date, insert a pin into the hole marked (see fig. 1)
for setting of time and day. Adjustment should be made for change in summer and winter time.

Wake
Night

Out
Home

2. Daily use of the thermostat
4-event clock mode

The day has been split into 4 events describing a typical day. When the thermostat is in this 4-event mode it will change the temperature to the required level
automatically at the programmed times. As standard the thermostat has 5 days with 4 events (two ON’s and two OFF’s), and 2 days with 2 events (one ON
and one OFF). For programming see 3. Please, refer to item 4-PRO to alter the daily event sequence.

4-event clock mode/
automatic mode:

Comfort mode:

☞



☞

Manual mode:

☞



☞

Temporary override

To temporarily override any temperature in the 4-event schedule program, press the UP ( ) button once, to show
the temperature in the display, and press UP ( ) or DOWN ( ) again to increase or decrease the temperature.
The display will flash for 5 seconds, and will then revert to the time. The override will operate until the next
programmed event when the thermostat will resume the automatic programme.

In automatic mode, the clock function symbol ( ) and one of the 4-event symbols ( ) will be
indicated. Programming see 3.

Cancel comfort mode

To cancel the temporary override, press the OK ( ) button twice.

Permanent override:

During holidays, the scheduled 4-event program can be overridden.
Press the OK ( ) button, and then the UP ( ) or DOWN ( ) button until the override temperature is set. The set
temperature will remain in the display and the unit will now operate to this temperature permanently.

Cancel manual mode

To cancel the permanent override state press the OK ( ) button once, and the unit will resume automatic function.

5 secs.

5 secs.

☞

☞

☞

☞

☞

☞

☞

☞

Press OK ( ) button for 3 secs. to begin programming

: Time and temperature

: Time and temperature

: Time and temperature

: Time and temperature

Day 1 - 5

Day 6 - 7

☞ ☞

: Time and temperature

☞ ☞

: Time and temperature

3. Programming
4-event time and temperature

For each event, the start time and required
temperature needs to be set.

For example, in the morning you wish the heating to
start at 07:00 and the temperature to rise to 25˚C.
Press OK ( ) button for 3 seconds and the start time
is displayed. Change this to 07:00 with the
UP ( ) or DOWN ( ) button. Press OK ( ) to
confirm.
The temperature is now displayed. Change this to 25˚C
with the UP ( ) or DOWN ( ) button.
Press OK ( ) button to confirm. This action can now
be repeated for the second, third and fourth event.

These settings will be valid for days 1-5 showing on
the display. To program the days 6 and 7, repeat the
above. Days 6 and 7 are usually Saturday and Sunday,
and only have two events (generally morning ON and
evening OFF).

The temperature can be set within the range of +5 to
+35˚C. It is also possible to select the heating OFF at
that event by reducing the setting to 5˚C, and then
pressing the ( ) once more.

Note that when programming the “Sleep” time
(event 4), please ensure that this time is before
midnight (00:00).