Technische Alternative CAN-EZ2, Руководство пользователя

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Functions
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Functions
All functions of the UVR16x2 controller are available. You can choose from 43 different functions and
can create up to 128 functions. Functions can also be applied multiple times.
In the following, only those functions are described that are relevant for the actual task of the CAN-
EZ3.
Descriptions of all other functions can be found in the corresponding controller
manuals (UVR16x2/
RSM610/UVR610/CAN-I/O45), which can be downloaded from ta.co.at .
Definitions
COP value (COP= Coefficient of Performance)
Ratio of the output heat power (kW) to the consumed electrical operating power incl. auxiliary energy
under test conditions (defined temperature conditions, defined time points).
COP = Q
WP
/ P
el
The COP value also includes the power of auxiliary units (thawing energy, fraction of pump capacity
for heating, brine or groundwater heat pumps).
Consequently the COP value is a good criterion for heat pumps.
Test institutes determine this value according to a defined measuring method (DIN EN 255).
However performance number and COP value do not allow any energy-based evaluation of the over
-
all system. They are only a snapshot of certain heat pump (HP) type under favourable operating con -
ditions (e.g. at 35°C flow temperature). The (yearly) performance factor is much more meaningful for
a system.
Performance factor β
The performance factor is the actual COP during operation.
It is the ratio of the heat energy yield (kWh) to the consumed operating and auxiliary power kWh) over
a given time period:
β = W
Useful
/ W
el
The more important performance factor for the efficiency of a system is therefore the (annual) per -
formance factor ß.
This is the result of measurements at the electricity meter for the supplied electrical energy (com
-
pressor, heat source pump) and at the heat meter (output thermal energy of the heat pump) over a
given time interval. If the interval is one year, then the annual performance factor or annual COP is
referred to.