Danfoss DHP-R 7Ua User Manual page 28

3�6�10�1 Cooling tank
Tank set point
Set point for the temperature in the cooling tank.
start passive cool�
Integral value for the start of passive cooling.
start active cool�
This setting determines how much the integral should rise over the start point
for passive cooling before active cooling is started.
Delta start hp
Integral step size for the start of additional heat pumps for active cooling.
Temp diff limit
To be able to cool the cooling tank with the brine fluid the brine temperature
must be lower than the temperature in the cooling tank. This setting determi-
nes how much cooler it has to be before the valve to the cooling tank is ope-
ned. Setting the value to zero disables the control completely.
Circulation delay
To allow cold water to be pumped up from the bore hole to the cooling tank
before the valve is opened this setting defines a delay that begins when a brine
circulation pump is started. Longer pipes make longer delays necessary.
3�6�10�2 Cooling circuit
Cool circ� set point
Set point for the cooling circuit.
Dew point control
Activates and deactivates the dew point control. Dew point control requires an
air humidity sensor.
P-area
P-area for the cooling circuit controller.
I-time
I-time for the cooling circuit controller.
Pump exerc� interval
Pump exercise interval for the cooling circuit circulation pump.
Pump exerc� time
This setting determines how long the pump is run when exercised.
3�6�10�3 Blocking
active block limit
Outdoor temperature limit for blocking active cooling. Below this temperature
active cooling will not be used.
28 – Danfoss