Pentair FLECK 3900 NXT - Page 15

Installer Manual Fleck 3900 - NXT - Description
Ref. MKT-IM-015 / B - 08.06.2018 15 / 126
Electrical
Controller operating voltage .................. 24 VAC
Input supply frequency ........................... 50/60 Hz
Transformer voltage............................... 24 VAC
Motor input voltage................................. 24 VAC
Power consumption ............................... 105 W
Controller protection rating ................... IP 22
Valve protection rating ........................... IP 44
Power supply .......................................... 230 VAC, 50/60 Hz, 105 VA, Class II
Transient over-voltages ......................... within the limits of category II
Pollution Degree..................................... 3
Temporary over-voltages must be limited in duration and in frequency.
Model without transformer
Warning
A switch or circuit-breaker must be included in the installation, it must be suitably located
and easily reached, it must be marked as the disconnecting device for the equipment.
Warning
The power must be achieved by a transformer in which the primary windings are separated
from the secondary windings by REINFORCED INSULATION, DOUBLE INSULATION, or a
screen connected to the PROTECTIVE CONDUCTOR TERMINAL.
Warning
It is required the installation of a fuse as over-current protection, it has to be positioned
between the system and the secondary of the transformer in the installation with the
following characteristics: V>= 30Vac, Imax=10A (ES. 10x20 10A)
Environmental conditions
• Indoor use only;
• temperature from 5°C to 40°C;
• maximum relative humidity 80% for temperatures up to 31°C decreasing linearly to 50% relative
humidity at 40°C;
• mains supply voltage fluctuations up to ±10% of the nominal voltage.