ESBE 90C-1 Série Mode D'emploi page 16

The following settings can be used for parallel translation of the characteristic
for certain time periods such as daytime and nighttime mode.
Menu 5.4 Day correction = parallel translation of the characteristic
The day correction produces a parallel translation of the heating characteristic during
the daytime operating hours, since depending on the outdoor temperature it is possible
that the building may not be optimally heated with the set characteristic. If the characte-
ristic is not optimised, the following situation may occur:
in hot weather - the spaces are too cold
in cold weather - the spaces are too hot
In this case, one should gradually reduce the characteristic slope in steps of 0.2, each
time raising the day correction by 2-4 °C.
This procedure can be repeated several times as needed.
Setting range: from -10°C to 50°C / default setting: 5°C
Menu 5.5 Night correction = parallel translation of the characteristic
The night correction produces a parallel translation of the heating characteristic during
the nighttime operating hours. If a negative value is set for the night correction, the refe-
rence fl ow temperature is lowered accordingly during the nighttime operating hours.
In this manner, primarily at night, but also during the day when no-one is at home, the
room temperature is lowered, thus saving energy.
Example: A day correction of +5°C and a night correction of -2°C produces a reference
flow temperature in nighttime operation that is 7°C lower.
Setting range: from -30°C to 30°C / default setting: -2°C
Menu 5.6 Comfort temperature boost = parallel translation of the characteristic
The comfort temperature boost is added to the set day correction. In this manner it is
possible to carry out quick heating and/or a higher temperature in the living spaces at
a certain time each day.
Setting range: from 0°C to 15°C / default setting: 0°C = off
Menu 5.7 Wait position
When Aux heat is activated in menu 7.7.2 is this menu unlocked.
Valve position for activation of auxiliary heat.
Position 50% is default and is recommended when VRB140 or BIV valves are used.
Setting range: from 20 to 100% default 50%.
Menu 5.8 Heat delay
When aux heat is activated in menu 7.7.2 is this menu unlocked.
Time delay before activation of aux. heat.
Setting range: from 0 to 120 min, default 60 min.
Time counter is resetted when valve position is less than specified position.
Menu 5.9 Valve delay
When aux heat is activated in menu 7.7.2 is this menu unlocked. Time delay before
valves start to move.
Setting range: from 0 to 120 min, default 70 min.
Time counter is resetted when valve position is less than specified position
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PROTECTIONS, MENU 6
Menu 6.1 Frost protection
6. Exit protections 6. Protections
Frost protection function can be activated for the
6.1 frost protection 6.1 frost protection cn cn
heat circuit. If the outdoor temperature drops below
1 °C and the heat circuit is switched off, the controller
6.2 Min flow 6.2 Min flow 15ºC 15ºC
switches the heat circuit back on with the reference
▲ ▲ ▼ ▼
temperature set in in menu 6.2 (min. flow temperatu-
Info Info
re). As soon as the outdoor temperature exceeds 1°C
the heat circuit is switched off again.
Frost protection - settings range: on, off / Default: on
Switching the frost protection function off or setting the minimum flow tempe-
rature too low can lead to severe damage of the system.
Menu 6.2 min. flow temperature
The minimum flow temperature is the lower limit for the characteristic curve/slope and
as a result of the reference flow temperature of the heat circuit.
Additionally, the min. flow temperature is the reference flow temperature for the frost
protection.
Settings range: 5°C to 30°C / Default: 15°C
Menu 6.3 max. flow temperature
This is used as the upper limit for the reference flow temperature of the heat circuit.
Should the heat circuit temperature exceed this value, the heat circuit is switched off
until the temperature drops below.
Settings range: 30 °C to 105 °C / Default: 45 °C
For safety, the customer must provide an additional limiting thermostat which
is connected to the pumps in series.