fisair HEF7 Series Manual

Installation and maintenance manual
HEF7
Adiabatic Cooling System for
Air-condensed Water Chillers
In compliance with European Union standards for machinery safety,
it is essential to read this manual in detail before installing units.

HEF7
Installation and maintenance manual

3
Fisair Air humidity control
04 General description
05 HEF7 nomenclature
06 High efficiency HEF7 evaporative panel
06 ORGANIC evaporative panel
07 INORGANIC evaporative panel
08 Unit components
10 Operating principles
11 Installation requirements
12 Connections and regulation
13 Recirculation pump electricity connection
14 Level detector electricity connection
15 Solenoid valve electricity connection
16 Draining motor-valve electricity connection
17 Setting the valve regulating irrigation flow
18 Setting the valve regulating the bleed-off flow
19 Maintenance and cleaning
21 CE declaration of conformity
22 FISAIR S.L. guarantee policy
Contents

4
HEF7 Installation and maintenance manual
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 (pages 6
and 7).
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.
hot and dry air
cold and wet air

5
Fisair Air humidity control
HEF7 nomenclature
HUMIDIFIER
EVAPORATIVE
FISAIR
SERIES
Nº OF COVERED FANS
01
02
03
04
FAN Ø
CASSETTE THICKNESS (MM)
PANEL MATERIAL
0
I
(Organic)
(Inorganic)
Line voltage
Line voltage
QUANTITY
HEF7 NOMENCLATURE
PUMPING SYSTEM FOR HEF7
C.P.M. (Control panel and protection) / (CONTROL PANEL)
H E F - 7 - 00 - 000 - 000 - N
GB7- 230V-IN-50/60Hz
CPM- 230V-IN-50/60Hz

6
HEF7 Installation and maintenance manual
TYPE 0760
ORGANIC EVAPORATIVE PANEL
• 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.
High efficiency HEF7 evaporative panel
100
95
90
85
80
75
70
65
60
55
50
0.0 1.0 2.0 3.0 4.0 5.0
300
200
150
% Saturation Efficiency
Front air speed (m/s)
0.0 1.0 2.0 3.0 4.0 5.0
200
150
300
250
Pressure drop (Pa)
Front air speed (m/s)
225
200
175
150
125
100
75
50
25
0
[Note]
Air speeds in the shaded zone can cause droplet carry-over.
• 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.

7
Fisair Air humidity control
TYPE 0760
INORGANIC EVAPORATIVE PANEL
These panels are made of fibreglass with a special coating
to enable a greater absorption capacity and ensure constant
evaporative humidification and cooling, even at high air
speeds. They are made of fireproof inorganic material.
They are ideal for humidifiers placed after air treatment and
heater units, and for the pre-cooling of gas turbines.
• Inorganic and fireproof
(in accordance with EURO Class A2, S1, D0)
• Low humidification/cooling energy costs
• Precise control
• No risk of oversaturation
• No need for water treatment
• Safe and hygienic
100
95
90
85
80
75
70
65
60
55
50
0.0 1.0 2.0 3.0 4.0 5.0
300 mm
200 mm
100 mm
% Saturation Efficiency
Front air speed (m/s)
0.0 1.0 2.0 3.0 4.0 5.0
100
Pressure drop (Pa)
Front air speed (m/s)
95
90
85
80
75
70
65
60
55
50
[Note]
Air speeds in the shaded zone can cause droplet carry-over.
300 mm
100 mm
200 mm

8
HEF7 Installation and maintenance manual
Unit components
1
3
35
6
2
4

9
Fisair Air humidity control
L
E
H
The unit serial number and the dimensions of the cassette are required for evaporate cassette spare parts.
L= Cassette length H= Cassette height E= Cassette thickness
For further information on parts of systems, please contact the manufacturer.
Brand Code Description Units
1 62000080 REGULATION VALVE 1
2 62000075 REGULATION VALVE 1
3 71090006 SOLENOID VALVE 1
4 64220314 LEVEL SENSOR 1
5 63390013 VALVE ACTUATOR 1
6 63330015 2-WAY VALVE 1
7 65330005 PUMP 1

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HEF7 Installation and maintenance manual
Overflow
Drainage
Water supply
Bleed-off
IRRIGATION PANEL
Water tank
A
3
D
B
2
C
5
4
7
1
AWater Supply
BConstant Bleed-off
COverflow
DDrainage
1Regulation Valves with Flow Meter (Irrigation)
2Regulation Valves with Flow Meter (Bleed-off)
3Filling Solenoid Valves
4Max/Min Level Detector
6Valves with Actuator (Drainage)
7Water Recirculation Pump
Operating principles