Operating Limits; Minimum Average Water Temperature [°C] - AERMEC VMF VES Série Manuel D'installation

OPERATING LIMITS

VES
Maximum water inlet temperature
Maximum recommended water inlet temperature
Maximum operating pressure
Minimum water flow rate (Main coil)
Maximum water flow rate (Main coil)
Minimum water flow rate (Heating only coil)
Maximum water flow rate (Heating only coil)
Ambient temperature limits (Ta)
Ambient relative humidity limits (RH)
Power supply
Protective rating
Earth leakage current from several units
supplied from the same residual current
device are cumulative and consideration
should be given to the rating of this
Water temperature
In order to avoid air stratification and
therefore achieve better mixing it is advised
not supply the fan coil unit with water
hotter than 65°C.
Minimum average water temperature
If the fan coil unit operates continuously
in cooling mode in a room with high
relative humidity, condensate might
form on the air discharge and unit
casing. This condensate might be
deposited on the floor and on any
o b j e c t s u n d e r n e a t h . To p re ve n t
the formation of condensation on
the exterior of the unit while the
MINIMUM AVERAGE WATER TEMPERATURE [°C]
Ambient wet bulb temperature
030
°C
°C
bar
l/h 150
l/h 1500
l/h 50
l/h 500
°C
IP
residual current device. It may be necessary
to separate the installation into several
circuits with their own residual current
device.
The use of very hot water could cause
creaking due to the thermal expansion
of the different components (plastics and
metals). This does not cause damage to
the unit if the maximum operating
fan is operating, the average water
temperature should not drop below
the operating limits shown in the table
below, determined by the room ambient
conditions.
These limits refer to unit operation with
fan at minimum speed.
In the case of prolonged periods with
the fan switched off and cold water
passing through the coil the formation
15
17
19
21
23
040 130 140 230
80
65
(800 kPa)
150 150 150 150
1500 1500 1500 1500
- 50 -
- 500 - 500
0° < Ta < 40°
U.R. < 85%
230V ( ±10% ) ~ 50Hz
20
temperature is not exceeded.
of condensate on the unit casing is
possible. In this case the installation
of the 3 way valve accessor y is
recommended.
Ambient dry bulb temperature
21 23 25
3 3 3
3 3 3
3 3 3
6 5 4
- 8 7
240 330 340
150 300 400
1500 3000 4000
50 - 100
- 1000
27 29 31
3 3 3
3 3 3
3 3 3
3 3 3
6 5 5
21
-
-