Worcester 11 KW, User Manual

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SETTINGS
6 720 802 172 (2012/06) 13
Fig. 27
▶ Turn the menu dial to change the value.
Fig. 28
▶ Press the dial to save or use to return without saving.
▶ Use to leave the curve setting window and return to the menu.
>> Compressor x operating time on/off
▶ Select how long the compressor should be on or off in heating mode.
Higher set values result in fewer compressor starts and stops, which
achieves higher economy. However, more pronounced temperature
fluctuations in the heating system may result than with lower values.
>> Room temperature program
▶ Choose if the circuit should be controlled with a program or not.
HP optimized
This means that the control unit is only controlled by the flow set point
value (

Chapter 13.2.1), without programmed changes during the
day. Optimised operation provides the best comfort and energy savings
in the vast majority of cases.
Program 1 and 2
These selections provide an opportunity to define user programs for
time control by adjusting the start and stop times, as well as a normal and
an programmed temperature.
To set the desired time of day:
▶ Select
Program 1 or Program 2 .
▶ Go to menu View/edit active program .
▶ Select day by turning the menu dial.
Fig. 29
▶ Press the menu dial to mark the value to be changed.
Fig. 30
▶ Turn the menu dial until the desired setting has been selected.
▶ Then press the menu dial.
▶ Turn the menu dial to be able to set additional values in the same way
as above.
▶ Go back one step with .
▶ Select Saving alternative :
– Return without saving
– Program 1
– Program 2
The set changes are saved as a selected program or not at all.
▶ To adjust the normal temperature, proceed to menu Room
temperature normal .
▶ To adjust the exceptional temperature, proceed to menu Room
temperature exception .
Room temperature program when there is a room controller:
>> Room temperature program
>>> Active program
If a program is selected, the following (if the menu button is turned) is
displayed:
>>> View/edit active program
>>> Room temperature normal
▶ Set the desired set point for the room temperature.
Recommendations:
▶ Increase the value of the right point if it feels too cold
at low outdoor temperatures.
▶ Increase the value of curve at 0 °C if it feels a little cold
at outdoor temperatures around 0.
▶ Increase or decrease the value of the curve equally at
the right and left points to fine adjust the heat (the
curve is offset parallel).
Factory setting 20.0
Lowest value 10.0 (Comfort)
Highest value 30.0 (Economy)
Table 10 Compressor operating time on/off
Factory setting HP optimized
Alternative • HP optimized
• Program 1
• Program 2
Table 11 Program selection, circuit 1
6 720 614 789-21.3I
6 720 614 789-22.3I
Program Day Start Stop
Program 1, 2 Mon - Sun 5:30 22:00
Table 12 Program 1 and 2
Factory setting 20.0 °C
Lowest value 10.0 °C
Highest value 35.0 °C
Table 13 Room temperature, normal
6 720 643 415-13.1I
6 720 643 415-14.1I