TDMA CONTROL 602-702 Eng Nov.doc
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Hot Water Charge –
Priority: Yes / No
If the hot water charge priority is set to “Yes” and the demand for hot water is
required, the heating circuit pump is switched off and the heating mixing valve
closes. This allows all the heat to go to the store to provide the hot water only.
Once this demand has been achieved the heating circuit pump is switched on
and the mixing valve opens..
Hot Water Extra Comfort
Temp: 80 °C
To activate the “Extra Comfort Temp” go to Select Function 3 (Variant A) and
Select Function 5 (Variant B) on the CONTROL 602 or with the CONTROL 702
this is an Additional Function. In the ‘Set Hot Water’ option, you can set a
raised hot water temperature for a short period, which is operated by athe
circiulation and bath button through Digital input D2.
If you press the circulation and bath button three times within 5 seconds, the
hot water heating setpoint temperature is raised to the temperature set here.
Thus a particularly high hot water temperature is ensured. This function can
make a signicant contribution to saving energy, especially if the hot water is set
lower during off-peak times. This function also operates during the timer off
periods.
Hot Water Charge:
Timer: On / Off
If the timer is set to “On” the hot water charge runs only during the specified
time windows.
Hot Water Charge:
Each Day / Every Day / Weekend-‐
Weekday
Here the timer for the hot water charges can be set and adjusted.
Each Day: Here different times for each day can be set.
Every Day the Same: The same time applies for every day. The adjustment is
made only once.
Weekend/Weekday: The operating periods needs only be entered once for
the weekdays and once for the weekend (Saturday and Sunday).
For each switching time (6 No) there are three conditions to choose from –
“On”, “Comfort” and “Off”.
On: The store is heated at the top to the set “Hot Water Temperature”.
Comfort: The store is heated at the top to the set “Hot Water Extra Comfort
Temperature”.
Off: The store is heated at the top to the set “Hot Water Minimum
Temperature”.
Example: DHW Heating - Weekday / Weekend
Timer:
Times
Switching Status
Mo-Fr Switching time 1:
06:00 hr
On (1)
Mo-Fr Switching time 2:
08:00 hr
Off (0)
Mo-Fr Switching time 3:
17:00 hr
Comfort (2)
Mo-Fr Switching time 4:
21:00 hr
Off (0)
Sa-So Switching time 1:
08:00 hr
On (1)
Sa-So Switching time 2:
13:00 hr
Off (0)
Sa-So Switching time 3:
19:00 hr
Comfort (2)
Sa-So Switching time 4:
22:00 hr
Off (0)
The hot water heating takes place from Monday to Friday during the hours of
6 – 8 and 17 – 21 and on the weekend between 8 – 13 and 19 – 22 (with
the later time periods being at the extra comfort temperature). During the off
periods the store will be maintained at the minimum temperature required.
Monday to Friday
