fisair HEF7 Series Manual

FISAIR S.L.U. C/ Uranio, 20, 28330 Madrid, Spain.
Tel: [phone] Fax: [phone] | [email protected] | fisair.com
HEF7 SERIES
INSTALATION AND MAINTENANCE MANUAL
Adiabatic cooling system for
Air-condensed Water Chillers
MHEF7-EN-21-0
In compliance with European Union standards for machinery safety,
it is essential to read this manual in detail before installing units.

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Index
1. General description.............................................................................................................................4
1.1. Safety instructions........................................................................................................................5
2. HEF7 nomenclature............................................................................................................................7
3. Rating plate and machine type............................................................................................................8
4. High efficiency HEF7 evaporative panel............................................................................................10
4.1. ORGANIC EVAPORATIVE PANEL............................................................................................10
4.2. INORGANIC EVAPORATIVE PANEL........................................................................................11
5. Unit components...............................................................................................................................12
6. Operating principle............................................................................................................................14
7. Installation requirements...................................................................................................................15
8. Connections and regulation...............................................................................................................17
9. Recirculation pump electricity connection..........................................................................................19
10. Level detector connection..............................................................................................................20
11. Solenoid valve electricity connection .............................................................................................22
12. Connection of the motor-zone valve N.C. for automatic emptying / draining .................................23
13. Setting the valve regulating irrigation flow......................................................................................26
14. Setting the valve regulating the bleed-off flow...............................................................................27
15. Start-up recommendations.............................................................................................................29
16. Maintenance and cleaning.............................................................................................................30
16.1. Evaporative humidification: a natural method that does not carry bacteria. ................................30
16.2. Cleaning.....................................................................................................................................30
16.2.1. General......................................................................................................................................30
16.2.2. Scale formation process.............................................................................................................31
16.2.3. Desinfection...............................................................................................................................31
17. Machine conformity declaration .....................................................................................................34
18. Cuasi machine conformity declaration ...........................................................................................35
19. WARRANTY..................................................................................................................................36

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1. General description
EVAPORATIVE HUMIDIFIER
OPERATING PRINCIPLE
FISAIR evaporative humidifier units are designed to
increase the water vapour content of the treated air,
through the natural evaporation of water in its liquid
phase. The air flow being treated passes through a
cellular panel, which is watered by an irrigation system.
The panel is made up of undulating sheets of organic or
inorganic paper containing stiffening agents and water
absorbers.
Panels are laid out in criss-crossing channels to provide
a large surface area for air-water contact, which
maximizes water evaporation and at the same time
minimizes resistance to the air flow passing through
(pressure drop).
See the graph of evaporative performance and pressure
drop for the panel in relation to the air speed
FISAIR evaporative humidifiers work in a similar way to
natural phenomena occurring in rivers, lakes and seas.
All that is added to the air is pure water vapour.
PROVISIONAL STORAGE
During storage, keep units dry and protected
against the elements.
[Note]:Thermo-hygrometric conditions of the
storage area:
Temperature: [-10… 50ºC]
Relative Humidity: [5… 95%HR]
No condensation

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1.1. Safety instructions
FISAIR se exime de cualquier responsabilidad a menos que se cumplan con todas las instrucciones de
instalación y funcionamiento proporcionadas por FISAIR, o si los productos han sido modificados o
alterados sin el consentimiento por escrito de FISAIR, o si tales productos han sido sometidos a un
mal uso, mala manipulación, alteración, mantenimiento inadecuado o muestran consecuencias de
accidente o utilización negligente. Estas situaciones pueden ser una conexión de alimentación
incorrecta, golpes con otros objetos, anulación de seguridades, etc.
Please read these safety notes carefully and examine the equipment to become familiar with it before installing,
commissioning or servicing.
The following symbols or messages may appear in this document or on the equipment. They warn of potential
hazards or provide information that may help you clarify or simplify a procedure.
Attention, Live Current
The presence of this symbol on a hazard or warning label indicates that there is
a risk of electrocution, which can lead to personal injury or life-threatening
conditions if the instructions are not followed.
Atención
The presence of this symbol on a hazard or warning label indicates that there is
a risk of electrocution, which can lead to personal injury or life-threatening
conditions if the instructions are not followed.
Installation of a residual current device in the power supply line.
The installer has to install a specific residual current device in the machine's electrical power
circuit.

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General points
•If you notice that something is not working properly, switch off the unit immediately and take steps to
ensure that it does not switch on again. All faults must be corrected immediately.
•Use duly qualified personnel to carry out repair work. This will ensure that the unit operates safely.
•Use only original FISAIR replacement parts.
•Refer to local regulations that restrict or regulate the use of this humidifier.
How the unit works
•Do not jeopardise the safety of the unit.
•Periodically check the device's protection and alert devices.
•The unit's safety fittings must not be removed or disabled.
Installing, Disassembling, Maintaining and Repairing the unit
•The machine must not be manipulated when it is operating.
•Switch off the unit's power supply when conducting maintenance work or making repairs to the unit.
•Never add components to the unit without prior written approval from FISAIR.
About the electrical components
•Any work that affects the electrical components must be carried out by qualified electricians.
•Use only original, correctly calibrated fuses.
•Carry out periodic checks of the electrical unit.
•All defects, such as loose connections or burnt cables, must be repaired immediately.
The HEF2E control panel load break switch, whether it is external
or a FISAIR CCB2.0 or CCE2.0 panel, must be set to position “0”
(lock) before performing any maintenance on the unit.

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2. HEF7 nomenclature
HEF7 MODEL
HEF7 - VCS906-E6
Factory chiller model
PUMPING GROUP FOR HEF7
Pumping group - 230V-IN-50/60Hz
Line voltage
Basic control panel / (CONTROL PANEL)
CCB2.0- 230V-IN-50/60Hz
Line voltage

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3. Rating plate and machine type
The rating plate provides essential information about the technical features of the machine.
The EC Machinery Safety Regulation requires all machinery operated within the European Economic
Community to have a rating plate indicating its main features, the machine serial number and the manufacturer's
name inscribed in a durable manner.
According to article 2, section g of the Machinery Directive 2006/42/CE - RD 1644/2008, ‘partly completed
machinery’ means
“an assembly which is almost machinery, but which cannot in itself perform a specific application. A drive
system is partly completed machinery. Partly completed machinery is intended only to be incorporated into or
assembled with other machinery or other partly completed machinery or equipment, thereby forming machinery
to which this Directive applies”
Therefore, the HEF7 device is classified according to whether it is delivered with a CCB2.0 control panel:
•If only the HEF7 device is supplied →Partly completed machinery (quasi-machine)
•If the HEF7 device + CCB2.0 control panel are supplied→Machine
•If the HEF7 device + CCB2.0 control panel are supplied separately →Partly completed machinery
+ Partly completed machinery ≠ Machine
The rating plate shows the following information for the equipment:
•Model: description of the particular HEF7 device
•Serial No.: equipment serial number
•FISAIR devices it can be joined with
•Machine type: Machine or Partly completed machinery
•Designed in accordance with directive
•Made in Spain (EU): Place and date of manufacture
•QR code for technical assistance service and warranty activation

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Machine type rating plate:
Partly completed machinery (quasi-machine) type rating plate:

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4. High efficiency HEF7 evaporative panel
4.1. ORGANIC EVAPORATIVE PANEL
• Maximum performance: Organic Media is
designed to provide the largest possible air-
to-water contact surface area
(approximately 460 m2/m3). Such a large
area enables optimal evaporative cooling
and humidification from the evaporation.
•Maximum freshness: it works as a natural
filter purifying the entry air. Carefully designed
channelling eliminates dust particles and
mineral deposits from the air, which are trapped
on the evaporative surface.
• Maximum durability: made from special
cellulose paper impregnated with insoluble
chemical components in order to ensure a
long working life in the system.
• Maximum resistance: appropriate bleed-off
and regular brushing make it possible to be
used in imperfect water and air conditions.