DeDietrich AWHP-2 MIT-IN-2 iSystem Installation And Service Manual page 110

5. Commissioning
108
n MAX FLOW
In order for the regulator to calculate the quantity of heat produced by
the installation (parameter kWh), input parameter MAX FLOW. The
parameter MAX FLOW is equal to the flow in litres per minute in the
solar circuit.
Establish the MAX FLOW value with the help of the table below,
according to the configuration of the installation and the number or
surface area of collectors.
When the flow is input incorrectly, the display kWh will also be
incorrect.
The quantity of heat (kWh value) can only be used for
checks carried out for personal reasons.
Flat solar collectors
Solar panel
Area (m
installation
3...5
6...8
8...10
8...10
12...15
16...20
12...15
18...23
24...30
16...20
24...30
n Hybrid function
The hybrid function consists of an automatic switch between the heat
pump and an oil or gas boiler according to the changes in a factor
previously selected by the user: consumption cost, quantity of energy
consumed or carbon gas emission.
The switch between the heat pump and the boiler depends on the
heat pump COP. The threshold COP is calculated according to
parameters input by the user (cost, carbon gas emission coefficients).
If the heat pump COP is higher than the threshold COP, the heat
pump takes priority. Otherwise the boiler alone is enabled. The heat
pump COP depends on the outside temperature.
The influence of temperatures STOP HP: and BIVALENCE.TEMP is
described in the diagram opposite.
AWHP-2 MIT-IN-2 iSystem
2
) Number of Flow rate
panels (l/h)
1 or 2 400
3 or 4 300
4 or 5 250
2x2 750
2x3 670
2x4 450
3x2 850
3x3 800
3x4 650
4x2 1200
4x3 850
25/06/2014 - 7616371-001-04
Flow rate
(l/min)
6,7
5,0
4,1
12,5
11,2
7,5
14,2
13,4
10,9
20,0
14,2