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Systemcongurations
29.2.12 Systemconguration52
BWL-1S(B)
●Splitair/waterheatpump
● ON/OFF activation(atinputE2/SAF)
Externaldemand/controlby
buildingmanagementsystem(BMS)
ExternaloatingcontactatinputE2/SAF:
Open → heatpumpOFF
Closed → compressorON
Notes:
-
Application limits: Compressor T_FL/T_RTN = 55 °C, elec. heater T_FL = 75 °C
-
The electric heater is not activated (except for frost protection and defrosting)
- CongureoutputA1todefrost(WP003=Defrost)
→Indefrostmode,outputA1isswitched
in order to display defrost mode to the BMS.
- Ensure max. compressor starts per hour by BMS
- Ensuremax.owtemperaturebyBMS
ON - OFF
SF
A 3-way diverter valve for
central heating/DHW and
a feed/heating circuit pump
are integrated into the
indoor module
Indoor moduleOutdoor module
DHWheatingmodeforsystem
conguration52
Inthissystemconguration,theappliancecancarryoutDHWheat-upautomatically
on demand. DHW heat-up mode has priority over BMS mode.
DHWheat-upmodecanbesuppressedinsystemconguration52byremoving
the SF cylinder sensor, carrying out a parameter reset and resetting the system
conguration.
In this case, disconnect integral 3-way diverter valve for HTG/DHW.
Important information:
In these schematic diagrams, shut-off valves, air vent valves and safety equipment are not fully represented.
These should be provided for each system individually, in line with the applicable standards and regulations.
Hydraulic and electrical data can be found in the "Hydraulic System Solutions" technical guide.