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14. HYBRID SYSTEM CLIMATE MANAGEMENT (WINTER PHASE)
14.1 EXAMPLE OF OPERATION WITH EXTERNAL CLIMATE PROBE HYBRID SYSTEM HUB RADIATOR PACK CF
14.2 PROCEDURE FOR SETTING THE OPERATING
PARAMETERS
To modify the parameters that determine the hybrid operating
mode upon call of the external probe Pb2, follow the instructions
below:
- Set the outside temperature above which yes wishes to use
only the renewable energy of the Booster external to HP both
for DHW production and for heating production, acting on the
parameter AR21 / 25. Above this temperature it will however
remain activates the “integration boiler” mode upon call from
the technical water probe Pb1 to guarantee a temperature
lower limit of technical water below which there is no can go
down. For example if you set the parameter AR21 / 25
at 3 °C, the parameter AR09 at 48 °C and the parameter
AR12 at 2 ° C if we were in a climatic condition favorable with
15 °C outside temperature but in the face of a large drawing
of DHW the temperature of the storage drops below 48 °C
(AR09) then the boiler will it will activate automatically and
then switch off at the temperature of 50 °C (AR09 + AR12).
- Set the outside temperature below which yo wishes to
completely deactivate the Booster external to the HP
and use only the boiler for the production of DHW which for
the production of heating going to act on parameter AR25
(outside air temperature below of which the Booster is
deactivated) and on parameter AR21 (outside air temperature
below which it is activated the boiler).
- Simultaneously with the activation of the “solo boiler ”, it is
possible to set a sliding temperature of the technical water
set - point in order to obtain a flow system temperatures that
increases in a manner proportional to the decrease in air
temperature external. To proceed with this function, set
the value of parameters ST08 and ST03 at the temperature
of end of climatic curve (e.g. 65 °C as shown in the graph
above shown), further set parameters SD03(negative
differential that determines the initial value of the
climatic curve with respect to the final value, eg. 12 °C as per
graph above), SD07 (temperature differential
external dynamic set-point, eg. 5 °C as shown in the graph
above) and SD05 (set external air temperature for
the determination of the end of the temperature increase
technical water storage (e.g. - 5 °C as shown in the graph
above
reported.
To ensure that the above settings determine the correct
operation of the hybrid system, make sure that the boiler switch
“IC” is in the ON position and that the boiler diverter is in the
“INTEGRATION” position as indicated in paragraph 8.2.
Also check that the digital command and control unit of the
external Booster is active in heating mode and that the external
probe Pb2 has been connected correctly as indicated in chapter 12.
The last check to be made concerns the boiler control unit
physically positioned above the heat pump control unit, which
must also be in HEATING mode with a set-point temperature
greater than or equal to parameter ST03.
Accumulation temperature
(°C)
Outside temperature (°C)
ST03
SD05
AR25
AR21
SD03
SET POINT
STATIC
WATER
HEATER
SET
POINT
DYNAMIC
WATER
HEATER
SET POINT
STATIC
ONLY HEAT PUMP
SET POINT
STATIC
ONLY HEAT PUMP
HYBRID
ONLY HEAT PUMP
65
60
53
48
AR09
45
-10
10
-9
9
-8
8
-7
7
-6
6
-5
5
-4
4
-3 -2 -1 0
1
2
3
Climate example:
AR21 = 5 °C
SD03 = -12 °C
AR25 = 5 °C
SD05 = 2 °C
ST03 = 65 °C
AR09 = 48 °C
BOILER ONLY
Summary of Contents for HR 3.0
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