Intelligent Control underfloor heating operating instructions

Although the Master Control Box has some end user functions with regards operating temperatures, when a clock thermostat is used within the system, the controls will work to the settings programmed at the clock thermostat.  Please note when programming the underfloor heating event times an allowance should be made for the heat up time between the setback temperature and the normal operating temperature e.g. if the room is set back to 17°C and has to rise in temperature to 20°C by 8 o'clock then the system will need to start at 6 o'clock.  You can however time the system into setback 2 hours before the desired temperature change.

The following instructions will provide a good overview of the clock thermostat with regards setting and operation.

1. Setting the Time and Day

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 section 3 below.  Please refer to item4-PRO to alter the daily event sequence.

3. Programming the 4 - event time and temperature

For each event, the start time and required temperature needs to be set.  The diagram below shows the factory preset times and temperatures.  These settings will normally have to be altered to your requirements.  For example, in the morning you wish the heating to start at 06:00 and the temperature to rise to 20°C.  Press OK () button for 3 seconds and the start time is displayed.  Change this to 06:00 with the UP (△) or DOWN (▽) button.  Press OK () to confirm.  The temperature is now displayed. Change this to 20°C with the UP (△) or DOWN (▽) button.  Press OK () to confirm.  This action can now be repeated for the second, third and fourth event.  If you require the property to remain at this temperature throughout the day, simply choose 20°C for the second and third events.  For the fourth event (night setback) set the temperature to typically 4°C lower than your day time comfort temperature.  This can be programmed typically two hours before you normally retire.  These settings will be valid for days 1-5 showing on the display.  To programme 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°C to +35°C.  It is also possible to select the heating OFF at that event by reducing the event to 5°C, and then pressing the DOWN (▽) button once more.  Note that when programming the 'Sleep' time (event 4), please ensure that this time is before midnight (00:00).

4. Advanced settings and read-out

Once all the parameters have been set, the system will work to its programmed times and temperatures.  At this time it is advisable to check the correct operation of the 4-port mixing device.  The calculated flow temperature and actual flow temperature can be displayed within the menu screen of the full system Master control box (WLM-2FS).  Once the system has stabilised, these two values should be the same or very similar if the mixer is working correctly.

5. Reset to factory settings