Technical Specifications; Flow Direction - AERMEC VCF Série Manuel D'installation

VCF
WARNING: The appliance must be fitted according to the national
rules of process plant engineering.
WARNING:check that the power supply is disconnected before
performing operations on the unit.
WARNING:the electrical wirings, the installation of fan coils and
their accessories must only be carried out by people with the
proper technical and professional qualifications for the installation,
conversion, expansion and maintenance of the systems and able to
check that it is working properly and safe.
In the specific case of electrical wirings, the following must be
checked:
- Measurement of the electrical system insulation strength.
- Continuity test of the protection wires.
WARNING:before carrying out any work, put the proper individual
protection devices on.
WARNING: Touching live components could electrocute you.
DESCRIPTION
The kit consists of a valve, actuator and relevant water fittings; it is
suitable to be installed on the fan coils with right and left attachments.
The valve in this kit is an all or nothing-type valve, normally closed.
The valve must be controlled by the control panels which are enabled
for the valve checking function; Consult the control panel characteristics
before selecting a panel.
Consult the technical documentation of the fan coil to select the
models suitable for the installation to be carried out.
VCF41, VCF42, VCF43 for coil of: FCX, FCS, FHX.
VCF44, VCF45 for coil accessory BV at 1 row.
ASSEMBLY INSTRUCTIONS
Preliminary operations
Before installing the VCF kit, consult the fan coil installation manual
(FCX, FCS, FHX); it is the installer's job to prepare the water and
electrical systems and to make the proper connections with the unit.
The VCF valves can be fitted to the fan coils with left or right connec-
tions.
Install according to what is illustrated in the figures; in case of removal,
the gaskets must be replaced with a new series having the same
characteristics.
Slide off the SW minimum temperature probe from the coil to be then
fastened to the upstream delivery pipe of the valve using the specific
probe holder supplied with the kit.
WARNING: During installation, pay attention to the flow direction,
before fitting the valve, check the installation direction referring to
the embossed symbol on the valve body (see figures).
The body of the valve must be installed without overtightening.
All tubes, valves and fittings must be completely isolated. This is very
important in systems with cold water which can otherwise cause
condensation with consequent outpouring into the environment. The
VCF41-42-43 kits are equipped with an isolating shell to be installed
on the valve body.
Installation
- Fit the supplied insulated pipes to the valve body;
- Fit the valve unit with the attached pipes to the fan coil;
- Connect the water system pipes to the valve body or to the coupling
pipes (depending on the valve model), fittings and gaskets are the
installer's responsibility;
- Fit the actuator to the valve body;
- Install the isolating shell on the valve body (only VCF41-42-43) and
fix with a clip.
- Fasten the SW minimum temperature probe on the delivery pipe
upstream of the valve using the specific probe holder supplied with
the kit.
- Isolate all other exposed tubes and joints.
Electrical wirings
Connect the valve electrical wires to the unit control board as
indicated in the wiring diagrams attached to the fan coil or the control
panel manuals.
Water connections
VCF 41-42-43 water connections directly on the valve with ¾" flat
sealing gaskets (plant side).
VCF 44 – 45 water connections on flat flared copper tubes and ½" flat
sealing gaskets (plant side).
Connect the VCF kit and fan coil with an O-Ring fitting.
4
COMPLIANCE
VCF complies with the following harmonised standards:
- EN 60730-1
- EN 60730-1-14
complying in this way with the essential requirements of the following
directives:
- LVD Directive 2006/95/EC
- Electromagnetic Compatibility Directive 2004/108/EC
- Machine Directive 98/37/EC

TECHNICAL SPECIFICATIONS

Power supply:
Initial input power:
Input power during operation:
Water temperature range:
Usable liquids:
Operating time:
Maximum differential pressure:
Maximum working pressure applied to fan coils: 800kPa
Environmental operating conditions
Temperature:
relative humidity:
Environmental storage conditions
Temperature:
relative humidity:
Actuator water protection level:
Actuator electrical protection level:
Flow direction in the valve (see figure)
with valve powered
with valve not powered
Valve connections [mm]
Models VCF 41 VCF 42 VCF 43 VCF 44 VCF 45
A - AB - B 3/4"
Pressure drop
Models VCF 41 VCF 42 VCF 43 VCF 44 VCF 45
Kvs AB-A 2,5
Kvs AB-B (by-pass) 1,6
( (
2
∆p [kPa] = Pressure drop
10 q
Dp =
q [m
Kvs

Flow direction

A
B
AB
OUT
230V (±10%) ~ 50Hz
46VA
2.5W
4°C ÷ 80°C
water
(with glycol ≤ 50%)
2min ÷ 4min
30kPa
0°C ÷ 40°C
10% ÷ 90%
without condensation
-18°C ÷ 60°C
10% ÷ 90%
without condensation
IP44 in compliance with
EN 60529
Type II
A - AB
B - AB
3/4" 3/4" 1/2"
2,5 2,5 1,7
1,6 1,6 1,2
3
/h] = Water flow rate
IN
1/2"
1,7
1,2