9
IVES0LJ 1707 - 5880761_01
Minimum average water temperature
If the fan coil runs continuously in cooling
mode in an environment with high
relative humidity, condensate may form
on the air flow outside the appliance.
This condensate could drip onto the
floor and onto any underlying objects.
To prevent condensation phenomena on
the external structure of the appliance
with the fan running, the average water
temperature must not drop below
the limits indicated in the table. These
limits depend on the temperature and
humidity conditions of the room air.
These limits refer to operation with the fan
running
at minimum speed.
Condensation may form in the event the
fan is off for a prolonged period and cold
water flows in the coil; therefore, we
recommend installing the 3-way valve
(accessory).
OPERATING LIMITS
Water temperature
In order to prevent air stratification in
the environment and thus have a better
mixture, the fan coil should not be
supplied with water that is hotter than
65°C.
Using water at a very high temperature
can cause creaking due to the heat
expansion of the elements (plastic and
metal), however, this does not cause
damage to the unit unless the maximum
operating temperature is exceeded.
030 040 130 140 230 240 330 340
Maximum water inlet temperature °C 80
Maximum water inlet temperature recommended °C 65
Maximum operating pressure kPa 800
Minimum water flow rate (Main coil) l/h 80 80 80 80 80 80 150 150
Maximum water flow rate (Main coil) l/h 1000 1000 1000 1000 1000 1000 1500 1500
Minimum water flow rate (Heating Only Coil) l/h 50 - 50 - 50 - 100 -
Maximum water flow rate (Heating Only Coil) l/h 500 - 500 - 500 - 800 -
Environment temperature limits (Ta) °C 0° < Ta < 40°
Relative humidity limits in the environment (R.H.) R.H. < 85%
Electric power supply 230V ( ±10% ) ~ 50Hz
Protection rating IP 20
MINIMUM AVERAGE WATER TEMPERATURE [°C]
Dry-bulb temperature of room temperature
21 23 25 27 29 31
Wet-bulb temperature
of room temperature
15 3 3 3 3 3 3
17 3 3 3 3 3 3
19 3 3 3 3 3 3
21 6 5 4 3 3 3
23 - 8 7 6 5 5
The earth leakage current of several
devices placed under the same circuit
breaker is summed, therefore we
recommend paying attention to the
calibration value of the circuit breaker and,
if necessary, consider splitting the
installation in more circuits, each of which
protected by its own circuit breaker.