Technical data

Table Of Contents
COMMISSIONING
6 720 803 687 (2012/11) 45
Display
code
Description Unit
Standard
setting
Input range
A7 Temperature
differential towards the
heat source to prevent
the defrost function
°C 10 7 - 10 This is the minimum outside air temperature at which the
outdoor unit can be operated in order to avoid going into a
defrost mode. Because a buffer tank must always be
installed in the system, defrost operation can always be
allowed and the outdoor unit can operate between -9 to
+21 °C outside air temperature.
C0 Buffer cylinder is being
used.
A buffer tank must always be installed in the system.
Function not available in the UK
C1 Environmentally- and
cost-optimised
operation.
1 1 = Environmental
factors
2 = Costs
3 = Changeover
threshold
4 = Environment and
costs
This determines how the control strategy is optimised
C2 Dual mode changeover
threshold
°C 6 -20 - 20 If the "Bi-valent set point" control strategy is selected, this
is the outside air temperature below which the Outdoor
unit has to be switched off
C3 Cost weighting
electricity price — gas
price.
3.3 0 - 19.9 The energy price ratio = cost of electricity,P/kWh / cost of
gas, P/kWh. Use the look up table to find the energy price
ratio based on energy prices (see table 47 on page 82)
C4 Environmental factors -
gas.
kWh/
kWh
1.1 0 - 5 Primary energy factor for gas = total primary energy
consumed in the generation and distribution, kWh / 1kWh
of energy used based on gas
C5 Environmental factors -
electricity.
kWh/
kWh
2.6 0 - 5 Primary energy factor for electricity = total primary energy
consumed in the generation and distribution, kWh / 1kWh
of electrical energy used
5b Return to the standard
setting.
0 1 = Reset
0 = Off
This resets all parameters to factory settings
5c Service mode for
commissioning at an
outside temperature
above 21 °C or below -
C.
0 1 = On
0 = Off
When the Hybrid system is in normal use the outdoor unit
can operate between an outside air temperature of -9 to
+21 °C. During commissioning of the system the outdoor
unit is allowed to operate outside of this range using the
“service” function.
tt Factory test mode -
leave set to “0”,
when set to “1” the
Hybrid controller will
not function for 15
minutes or until the
power has been turned
off and on again.
0 0 = Normal operation
1 = Test mode
Table 22 Parameter list of the hybrid control module