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7 Settings
Tab.63
Buffer tank management with two sensors (optional)
Buffer tank status
Fig.50
Buffer tank in demand
2
Fig.51
Buffer tank loaded
Tab.64
Parameters to configure
Access
> Installation Setup >
Buffer tank > Parameters
Tab.65
Access
Air Src Heat pump >
23.5
Parameters, counters,
signals > Parameters
60
MIT-M
Description
The buffer tank is in load demand when the temperature measured by the top
sensor is less than the difference: temperature set point - temperature hyste
resis.
1
1
3
2
MW-1000352-2
3
The buffer tank is loaded when the temperature measured by the bottom sen
sor is equal to the buffer tank temperature set point.
1
3
1
3
MW-1000344-2
4. Configure the temperature set point parameters for the buffer tank
Parameter
Stp Buffertank Heat
(BP003)
Setp Buffertank Cool
(BP004)
Buffer Tank Slope
(BP005)
BufferTankTcalOffset
(BP013)
BufferTank HystStart
(BP014)
BufferTank HystStop
(BP019)
5. Configure the back-ups so that they will start when the buffer tank set
Parameter
Bivalent temperature (HP000)
Buffer tank top 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 )
Temperature of the buffer tank bottom sensor
Temperature of the buffer tank top temperature sensor
Temperature of the buffer tank bottom sensor = buffer tank set point
temperature + BufferTank HystStop (BP019): Hysteresis of
temperature which determines the start of Buffer Tank storage
load:
Description
Temperature setpoint for buffer
tank in heating mode
From 5 °C to 100 °C
Temperature setpoint for Buffer
tank in cooling mode
From 5 °C to 25 °C
Buffer Tank Slope
From 0 to 4
Offset to add to the calculate
Setpoint of the Buffer Tank
From 0 °C to 20 °C
Hysteresis of temperature which
determines the start of Buffer
Tank storage
From 1 °C to 20 °C
Hysteresis of temperature which
determines the stop of buffer
tank storage
From -30 °C to +30 °C
point is greater than 60 °C:
Description
Bivalent temperature: Above
the bivalent temperature, the
backup energy source is not
allowed to operate
Default value
70 °C
18 °C
1.5
5 °C
6 °C
0 °C
Do not change the value
Adjustment required
5 °C
7756241 - v02 - 19062020
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