Adiabatic Panels And Distribution System; Flowmeter - LU-VE Emeritus Manual Del Usuario

Adiabatic panels and distribution system

In the complete version of Emeritus, recovered water is collected in a tank positioned under the unit, at the header end. As a
consequence, the unit must be inclined with an elevation of about 1cm/m.
GENERAL REPPRESENTATION OF HOW TO POSITION THE MACHINE

Flowmeter

A flowmeter is used to control the water distributed on panels, in order to minimize the water consumption.
WARNING
Maintenance operations must be carried out only by qualified personnel and in accordance with the safety regulations in force.
The following outline specifies the ordinary periodic checks which the user has to undertake to maintain the machine in good condition.
Note the following requirements must be carried out periodically to guarantee that the panel is cleaned correctly cleaned and functions
properly.
Mains water supply characteristics
For the evaporative panel to function correctly, a pH level of between 6.5 and 8 has to be maintained, in order to avoid any problems
of chemical aggression to it.
In case of use of not treated water, is recommended that a hardness level of 250 ppm CaCO3 (25°f) is not exceeded.
Water supply temperature less than 25°C.
If the adiabatic panels are supplied with mains water (untreated), the flowrate mentioned above must be increased by 30% reaching
160 l/h for each fan.
ATTENTION: please take care to the alignment
between the adiabatic panel and the water
distribution pipe located above. Even if the unit
is installed inclined, the distribution pipe has to
be horizontal. An inclination of the distribution
pipe may bring to a not uniform water
distribution on the panels.
The adiabatic panels are designed to operate at
ambient temperature between +5°C and +50°C
The weight of the adiabatic panel alone is 6.3 kg
for each fan ; the weight increases when wet by
a factor of 3 on average.
The standard water supply rate (water softened
according to LU-VE standards) of the adiabatic
panels is about 125 l/h for each fan, see chapter
4 for details.
The system minimizes the number of on/off
cycles of wetting the panel in order to avoid as
much as possible the deposit of encrusting
minerals.
DN11 connectors G3/4" (flowrate 120 to 2400 l/h)
DN20 connectors G1" (flowrate 300 to 5100 l/h)
Materials: EPDM - PA6T/6I (40%GF) - ETFE
Power supply: 8-33VDC
Output signal: 4-20mA
Fluid temperature: <125°C
Ambient temperature: -15°C a +85°C
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