Ferroli MERCURY 2 Installation And Operation Manual page 28

OPERATING LIMITS
Power supply
Inlet water temperature
Maximum temperature air outlet (2)
Temperature of air inlet
(1) +/-6% of margin on the voltage. All the technical data given in this manual refer to 230V / 50Hz.
(2) In case of water with outlet temperature higher than 50°C, please verify the temperature of the air outlet
with selection software.
21
50Hz 0Pa
60Hz
0 Pa
The working with low external counter pressure, even if inside the motor range, may cause the separation of
drops from the coil during summer operation (to be evaluated also according to the degree of humidity). To
avoid this possibility, you should work with at least 40Pa of pressure and not more of the following air flow:
MODEL 21
CAPACITY 1250 mc/h
We suggest to let the unit work to the extremes of these operating limits only for short periods, because the
operation for a long period of time may reduce the normal duration of the components.
OPERATING LIMITS
Minimal counter pressure (motor range)
31 38
0 Pa 0 Pa
0 Pa 0 Pa
Maximum air flow
31-38 41-81
2300 mc/h 4500 mc/h
230÷240V/50Hz – 240V/60Hz (1)
3 ÷ 90°C
50°C
10÷ 50°C
41 81
0 Pa 0 Pa
40 Pa 0 Pa
5