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12.2
Hydraulic diagram of the indoor unit
The outdoor unit and the indoor unit may only be installed according to
the manufacturer's official system solutions.
Deviating system solutions are impermissible. Liability is voided in the
case of damage and problems resulting from impermissible installation.
The indoor unit is prepared to work without bypass/buffer if the volume
and minimum flow declared in chapter 12.1 are permanently met and if
the pressure drop in the circuit is below the pressure available from the
circulation pump as stated in table 13.
6
5
4
3
2
1
Fig. 44 Hydraulic diagram of the indoor unit
[1]
External booster heater
[2]
Water pressure relief valve
[3]
T0 flow temperature sensor at the outlet of the buffer cylinder
(installed here instead of on buffer cylinder if buffer cylinder is not
installed)
[4]
TC1 flow temperature sensor
[5]
Mixing valve
[6]
Automatic ventilation
[7]
TC3 temperature sensor outlet plate heat exchanger
[8]
Pressure sensor hot gas refrigerant inlet plate heat exchanger
[9]
TC0 return temperature sensor
[10] Temperature sensor liquid refrigerant outlet plate heat exchanger
[11] PC0 heating circuit recirculation pump
[12] Particulate filter (filter shut-off valve; accessory)
[13] Outdoor Unit
[14] Heating installation
Compress Hybrid 3400i AW – 6721861825 (2023/08)
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7
8
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12
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0010031726-002
12.3
System solutions
The outdoor unit and the indoor unit may only be installed according to
the manufacturer's official system solutions.
Deviating system solutions are impermissible. Liability is voided in the
case of damage and problems resulting from impermissible installation.
The indoor unit is prepared to work without bypass/buffer if the volume
and minimum flow declared in chapter 4.3 are permanently met and if
the pressure drop in the circuit is below the pressure available from the
circulation pump as stated in table 14.
Some system configurations require accessories (buffer cylinder, 3-way
valve, mixing valve, DHW circulation pump). If a heating circulation pump
(PC1) is installed, this is controlled by the controller in the indoor unit.
The following table shows different system solutions:
Appendix
35
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