20
EN
Cod. 3541Z090 - Rev. 05 - 05/2022
IDOLA S 3.2
3.4 Available static pressure
3.4.1 Heat pump circulator indoor unit
0
10
20
30
40
50
60
70
80
90
100
600
800
1000
1200
1400
1600
1800
2000
2200
2400
2600
2800
3000
3200
3400
3600
Pr
ev
al
en
za u
til
e
[k
Pa
]
Portata [l/h]
OMNIA S - Prevalenza utile
Prev_ut 10 [kPa]
Prev_ut 16 [kPa]
Mod. 16 - 16T
Mod. 10
Water flow rate [l/h]
Available static pressure [kPa]
The graph provides the available static pressure granted by the internal circulator (P_i) at the maximum speed. The internal circulator speed is managed by the hy-
dronic board in order to insure the correct water temperature difference as in the table below:
Cooling mode
Heating mode
For all set points
Set point <50°C
Set point >50°C
ΔT= T
Win
-T
Wout
5
5
8
NOTE
For the correct operation of the system, a hydraulic bypass must be provided on the system capable of ensuring sufficient water circulation to avoid the
blocking of the heat pump due to lack of water flow alarm.
This is, for example, essential if the system includes zone valves or thermostatic valves which, if they go into partial or complete closure, would result in
a reduction / lack of water flow with consequent water flow switch alarm and therefore the blocking the heat pump.
