58 / GB
Available pressure
The curves indicated above show the available pressure of internal units.
In order to have a correct sizing of the system, the pressure drop curve of the entire circuit (in function of the nominal flow
rate) must stay below the available pressure curve everywhere. Pressure drop values depend on the specific installation.
You can install a supplementary circulation pump if the module’s own unit is not powerful enough. For the electrical hoo-
kup, refer to «Electrical circuit».
Warning: in case of installation of thermostatic valves on all terminals or zone valves, install a bypass to ensure the mini-
mum operating flow rate.
System Size
Flowmeter OFF Threshold
[l/h]
Flowmeter ON Threshold
[l/h]
Nominal flow rate [l/h]
40 M 348 390 640
50 M 348
390
800
70 M - 70 M-T 486 540 1120
90 M - 90 M-T 630 702 1440
110 M - 110 M-T 768 852 1755
COMPRESSOR FREQUENCY TABLE
Heat Pump Frequency min [Hz] Frequency max (heat) [Hz] Frequency max (cool) [Hz]
4 kW 18 80 65
5 kW 18 100 80
7 kW 18 90 70
9 kW 18 75 57
11 kW 18 90 70
AVAILABLE PRESSURE AT INTERNAL UNIT
Available pressure at internal unit outlet towards the system.
Internal unit heating only
Coupled with external units: 40M - 50M - 70M - 70MT -
90M - 90MT - 110M - 110 MT EXT
Internal unit heating/cooling
Coupled with external units: 40M - 50M - 70M - 70MT -
90M - 90MT - 110M - 110 MT EXT
1 Z
2 Z
1 Z2 Z
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