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Tab.60
Access
> Installation Setup >
Buffer tank
Tab.61
Buff Tank HC Strat. (BP002)
Adjustment required
Fixed setpoint
Calculated setpoint
Dedicated slope
Tab.62
Buffer tank management with one sensor
Buffer tank status
Fig.48
Buffer tank in demand
2
Fig.49
Buffer tank loaded
7756241 - v02 - 19062020
Parameter
Buff Tank HC Strat.
(BP002)
Description
The buffer tank set point temperature is equal to the value for the parameter Stp Buffertank Heat
(BP003) or Setp Buffertank Cool (BP004).
Example: 55 °C
The buffer tank set point temperature is equal to the highest set point for the connected heating
circuits with the overheating temperature set by the parameter BufferTankTcalOffset (BP013).
Example: with CIRCA1: 22 °C, CIRCB1: 21 °C, the buffer tank setpoint will be: 22 °C + 10 °C =
32 °C
The buffer tank set point temperature depends on the outdoor temperature, the parameters Stp
Buffertank Heat (BP003) and Buffer Tank Slope (BP005) and the following formula:
Buffer tank set point = (- outdoor temperature) x Buffer Tank Slope + Stp Buffertank Heat
Example: (– -5 °C ) x 1.5 + 55 °C = 62.5 °C
Description
The buffer tank is in load demand when the temperature measured by the
sensor is less than the difference between the buffer tank temperature set
point and the temperature hysteresis.
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1
2
MW-1000347-2
The buffer tank is loaded when the temperature measured by the sensor is
equal to the buffer tank temperature set point.
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MW-1000346-2
Description
Heating Cooling Control
strategy used with buffer tank
Sensor temperature = buffer tank set point temperature – BufferTank
HystStart (BP014): Hysteresis of temperature which determines the
start of Buffer Tank storage
BufferTank HystStart (BP014) : Hysteresis of temperature which
determines the start of Buffer Tank storage
Sensor temperature = buffer tank set point temperature + BufferTank
HystStop (BP019): Hysteresis of temperature which determines the
start of Buffer Tank storage
7 Settings
Adjustment required
Fixed setpoint
Calculated setpoint
Dedicated slope
MIT-M
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