Accessories; Technical Data - AERMEC VENICE Manual Del Usuario

PR3 - remote control panel -
Remote control panel, allows to switch the
unit on/off, select the functioning mode
(cooling/heating) and summarise alarms
from a distance
VP - Pressure switch valve -
This accessory is envisioned for cooling
only units.
Valve complete with connections, piloted
directly in relation to condensation
pressure, it modulates the quantity of
water needed to cool the condenser, so
maintaining the condensation temperature
unchanged.
Its use is recommended in all installations
where water is available from wells or
acqueducts.
The Venice units are prepared for external
MOD. PR3
VENICE cooling only
15 •
20 •
25 •
30 •
VENICE H heat pump
15 •
20 •
25 •
30 •
E.S.E.E.R.
The attention towards the consumption
of electricity by the machines used for air
conditioning is of great concern also in Europe.
For many years in the United States reference is
not only made to efficiency in design conditions,
but an evaluation index is used that considers the marginal functioning of the unit in design
conditions and the greater use of partial loads,
with external air temperature lower than
that of the design and in compressor choking
conditions.
In Europe the EECCAC (Energy Efficiency and
Certification of Central Air Conditioner) and the
ESEER (European Seasonal Energy Efficiency
Ratio) have been adopted, which have the scope
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ACCESSORIES

4
installation of this accessory, in the rear
part using the tap positioned on the gas
pipe exiting the compressor and the
fairlead to be used for the connection to
be carried out according to the wiring
diagrams.
VPH - pressure switch valve with by-pass
solenoid valve -
This accessory is envisioned only for
the heat pump units. The solenoid valve
remains closed in cooling mode, therefore
the water will only pass through the branch
on which the pressure switch valve is
mounted, and in this way it can perform.
In heating mode the water passes through
both branches.
The Venice units are prepared for external
installationof this accessory, in the rear
VP14 VP15
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TECHNICAL DATA

5
of being able to compare the chillers to each
other.
Af ter having estimated the total energy
requested by the plant in summer mode
management in (kWh), the seasonal electric
energy consumption can be deduced using this
formula:
Energy absorbed =
ESEER = (3xEER100%+33xEER75%+41xEER50%+23xEER25%) / 100
Water exiting evaporator
∆T at full load
Load
External air temperature
VPH 10 VPH 11
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Energy requested Efficiency index
part using the tap positioned on the gas
pipe exiting the compressor and the
fairlead to be used for the connection to
be carried out according to the wiring
diagrams.
In order to obtain performance values,
when cold, using this accessory make
reference to the values relative to the
motor-evaporating versions.
VT - VTM - anti/vibration mounts -
Group of four anti-vibration supports to be
mounted under the sheet steel base, in the
points already prepared. They are used to
attenuate the vibrations produced by the
unit when functioning.
VT7
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The real energy calculation can be obtained
more correctly considering:
1. Load profile with external temperature
2. The climatic profile
3. Total of hours
With this data any adviser or designer will be
able to make his own evaluations.
7 °C
5 °C
100% 75% 50% 25%
35°C 30°C 25°C 20°C
VT M
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