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DESCRIPTION
VCF_X4L Valve kit for left hand connection fan coil units
VCF_X4R Valve kit for right hand connection fan coil units
The valve kits VCF_X4L and VCF_X4R are designed for fan coil units
with single coil, installed in a 4 pipe system with the "Cooling" and
"Heating" circuits totally separated.
The kit consists of 2 valves of 3-way 4 port connection complete with
electro-thermal actuators, insulating shells for the valves and associated
hydraulic piping.
The valves can be controlled from the control panels (accessory) enabled
as the control function of the valve. Before selecting consult the charac-
teristics of the control panels.
The kits must be installed on the coils.
COMPONENTS OF THE KIT:
➊
N° 2 Valves of 3-way 4 port connection
➋
N° 2 Electro-thermal actuators
➌
N° 2 Insulated connecting tubes
➍
N° 4 Flat washers
➎
N° 2 O-Rings
➏
N° 2 Insulating shells
➐
N° 4 Auto-blocking cable ties for insulating shells
➐
N° 4 Auto-blocking cable ties for sensor mounting clips
➑
N° 2 Sensor mounting clips
➒
N° 1 Grommet
➓
N° 2 Tronchetti di materiale isolante
VALVE TECHNICAL SPECIFICATION
Water temperature range :
Liquids used:
Maximum operating pressure at the fan
coil unit:
Ambient operating temperature range:
Ambient storage temperature range:
Threaded ring nut for actuator:
VCF1X4L - VCF2X4L - VCF3X4L
VCF1X4R - VCF2X4R - VCF3X4R
Valve body
Connections
Seal
Tightening torque
Connection tubes
Valve side
Connections coil inlet VCF1X4
Connections coil inlet VCF2X4 - VCF3X4
Seal
Tightening torque
Unit side
Connections
Seal
Tightening torque
Pressure drop
Kvs A - AB
B - AB (By-pass)
230V ACTUATOR TECHNICAL SPECIFICATION
Power supply:
Initial current peak:
Operating power input:
Initial opening time:
Final opening time:
Protective rating of the electro-thermal
actuator:
Protective class of the electro-thermal ac-
tuator:
Ambient operating temperature range:
Ambient storage temperature range:
Actuator with threaded ring nut:
Power cable:
4
AVCFX4UJ 1212 - 4413960_02
4°C ÷ 80°C
water (with glycol 50%)
800 kPa
0°C ÷ 40°C
-25°C ÷ 60°C
M30 x 1.5
G 3/4" Male
Flat
35Nm (25÷50Nm)
G 1/2" Female
G 3/4" Female
Flat
35Nm (25÷50Nm)
G 1/2" Male
O-Ring
15Nm (10÷30Nm)
2.2
2.2
230V (±10%) ~ 50Hz
0.5A x 0.5s (2x0.25A)
5W (2x2.5W)
90s
180s
IP44
Class II
0°C ÷ 40°C
-25°C ÷ 60°C
M30 x 1.5
2
L=2000mm (2 x 0,75mm
)
DECLARATION OF CONFORMITY
Refer to the Declaration of Conformity to the unit onto which they will
be installed.
VALVE CHARACTERISTICS:
• 3-way valves with 4 port connections
• on/off type normally closed
• with integral by-pass
• mounted as mixing valve
• Male flat seal connection
VALVE MOUNTING SCHEMATIC (MIXING)
FANCOIL
The A-AB way of the valve is closed whilst the by-pass B-AB way is
open when the electro-thermal actuator is not powered. The actuator
indicator is coloured red.
The A-AB way of the valve is open whilst the by-pass B-AB way is closed
when the electro-thermal actuator is powered. The actuator indicator is
coloured black.
PRESSURE DROP CALCULATION
( (
2
10 q
p [kPa] = Pressure drop
Dp =
q [m3/h] = Water flow rate
Kvs
INSTALLATION EXAMPLES
OUT
IN
FANCOIL
OUT
IN
FANCOIL
VCF_X4
SW
VCF_X4
SW
SW
VCF_X4
SW
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