Gebwell GEMINI 40 Installation, Operation And Maintenance Manual page 36

Comfort operation set point
During cooling operation, the room temperature is adjusted in
accordance with the comfort operation set point specified here.
The comfort set point for cooling can also be changed using the
knob on the room unit.
Factory setting: 23°C
Reduced set point
The room temperature is controlled during cooling mode
according to the recuced setpoint defined here.
Factory setting: 25°C
COOLING NOMINAL CURVE
The controller utilises outdoor temperature value to define the
output water set point required for cooling curve. The cooling
curve is determined by specifying two fixed points (output set
point at the temperatures of 25°C and 35°C).
Output water set point in outdoor temperature +25°C:
Menu: Expert → Parameter list
Cooling circuit 1 → 2/11 → 908
Cooling circuit 2 → 2/11 → 1208
Output water set point in outdoor temperature +35°C:
Menu: Expert → Parameter list
Cooling circuit 1 → 3/11 → 909
Cooling circuit 2 → 3/11 → 1209
Output water set point/ET 25
This defines the output water temperature required for cooling at
a mixed outdoor temperature of 25°C without taking summer
compensation into account.
Factory setting: 21°C
Output water set point/ET 35
This defines the output water temperature required for cooling at
a mixed outdoor temperature of 35°C without taking summer
compensation into account.
Factory setting: 18°C
36
TVKw Output water set point for cooling
TAgem Mixed outdoor temperature
The set cooling curve is based on the room temperature set point
of 25°C. If the room temperature set point is changed, the cool-
ing curve is changed automatically according to the new value.
Cooling limit at ET:
If the mixed outdoor temperature is above the cooling limit, the
cooling is released. If the mixed outdoor temperature is at least
0.5K below the cooling limit, cooling is prevented.
Factory setting: 20°C
Menu: Expert → Parameter list
Cooling circuit 1 → 3/11 → 912
Cooling circuit 2 → 3/11 → 1212
Heating / cooling lock time:
The lock time between heating and cooling operation. When
summer heating operation is engaged, cooling is disabled during
the reference value set here.
Factory setting: 24h
Menu: Expert → Parameter list
Cooling circuit 1 → 3/11 → 913
Cooling circuit 2 → 3/11 → 1213
OUTPUT WATER SET POINT LIMITS
A lower limit can be determined for the output water temperature
used for cooling. The limit curve can be defined by setting two
fixed points. In addition, a lower limit of 5°C is set for the re-
sulting output water set point.
Output water min set point/ET 25 °C
This setting defines the lowest permissible output water temper-
ature at a mixed outdoor temperature of 25°C.
Factory setting: 18°C
Menu: Expert → Parameter list
Cooling circuit 1 → 5/11 → 923
Gebwell GEMINI