CIAT DW User manual

HUMIDIFIER
EVAPORATIVE
10 - 2018
EN7548388.00
Installation
Operation
Start-up
Maintenance

Original text: French version
CONTENTS
1 - TECHNICAL RECOMMENDATIONS/WARRANTY................................................................................................................. 4
2 - OPERATING PRINCIPLE ....................................................................................................................................................... 4
3 - DESCRIPTION......................................................................................................................................................................... 5
3.1 - General description of the humidier................................................................................................................................... 5
3.2 - General recommendations.................................................................................................................................................. 6
4 - TECHNICAL CHARACTERISTICS ......................................................................................................................................... 7
4.1 - General characteristics of the humidier............................................................................................................................. 7
4.2 - Characteristics of the components...................................................................................................................................... 8
5 - INSTALLATION/START-UP/MAINTENANCE ....................................................................................................................... 18
5.1 - Installation ......................................................................................................................................................................... 18
5.2 - Start-up.............................................................................................................................................................................. 18
5.3 - Maintenance...................................................................................................................................................................... 19
5.4 - Disposal of the product and e󰀪uent generated................................................................................................................. 19
5.5 - Cleaning and disinfection .................................................................................................................................................. 19
5.6 - Removing the media ......................................................................................................................................................... 20
6 - RELATED DOCUMENTS ...................................................................................................................................................... 24
6.1 - CCB control box wiring diagram (option 12)...................................................................................................................... 24
7 - MCCB MANUAL - HUMIDIFIER CONTROL BOX ................................................................................................................ 25
7.1 - General description ........................................................................................................................................................... 25
7.2 - Installation ......................................................................................................................................................................... 26
7.3 - Description of hardware .................................................................................................................................................... 27
7.4 - Connections ...................................................................................................................................................................... 32
7.5 - Conguration..................................................................................................................................................................... 34
7.6 - Start-up.............................................................................................................................................................................. 37
7.7 - Conductivity calibration. .................................................................................................................................................... 39
7.8 - List of alarms..................................................................................................................................................................... 40
8 - AL-UW SUBMERSIBLE UVC LAMP..................................................................................................................................... 40
8.1 - Safety ................................................................................................................................................................................ 40
8.2 - Operating data and description of the device.................................................................................................................... 43
8.3 - Assembly and connection of the unit................................................................................................................................. 44
8.4 - Unit operation.................................................................................................................................................................... 45
8.5 - Faults and troubleshooting................................................................................................................................................ 45
8.6 - Maintenance and spare parts............................................................................................................................................ 46
8.7 - Disposal............................................................................................................................................................................. 47

1 - TECHNICAL RECOMMENDATIONS/WARRANTY
For all technical recommendations relating to the humidier, please see paragraphs 1-GENERAL, 2-SAFETY GUIDELINES,
3-REGULATIONS of Instruction Manual FR 7486825 for the Unit, supplied with the product.
Regarding the warranty, please see paragraph 1-GENERAL of Instruction Manual FR 7486825 for the Unit, supplied with the
product.
All specic recommendations relating to the humidier are described below in paragraphs 3-DESCRIPTION, 4-TECHNICAL
CHARACTERISTICS and 5-INSTALLATION/START-UP//MAINTENANCE.
RESPONSIBILITIES
All personnel operating a humidier are responsible for:
-their personal safety, the safety of other people and the prevention of damage to the humidier
-the correct operation of the humidier
-electrical wiring must be installed in accordance with national standards, by qualied personnel..
These instructions explain how the humidier must be used.
These instructions are recommendations only, and do not replace the responsibilities set out above.
2 - OPERATING PRINCIPLE
Increasing the relative humidity by passing air through a matrix moistened with water is a simple, safe method of humidication,
with the benet of the adiabatic cooling generated and low operating costs.
100 %
0
Conditions
terminal block
Relative humidity (%RH)
Temp. (°C)
Inlet conditions
10 20 30 40 50 60
50 % 20 %
The dry air passes through an absorbent cellulose bre or breglass matrix and collects the water vapour located on the moist
surface.
The water is distributed from the top of the matrix by a solid stainless steel nozzle bar and distribution cassettes located at the top
of each vertical row of matrices ensure even humidication.
20 °C
32 °C
32 °C
Warm
dry
air
Damp
fresh air
without
aerosols
Water inlet
EVAPORATIVE HUMIDIFIER EN- 4

3 - DESCRIPTION
3.1 - General description of the humidier
Recirculated water model - RW
P
M
B
L
ED
K
B
I
C
B
J
F
H
O
J
Direct water model - DW
B
J
G
EN-5 EVAPORATIVE HUMIDIFIER

Component DW humidier
(without pump)
RW humidier
(with pump)
1. Water supply connection Std Std
2. Float ll valve Std Std
3. High and low water level sensor NA Std
4. Recirculation pump NA Std
5. 2-way valve
a. Manual NA Std
b. 24 VAC motorised - Two control points NA Option
6. Motorised 3-way valve Option NA
7. Supply solenoid valve NA Option
8. Medium cassette
a. 100 mm cellulose bre - 65% efcient Option Option
b. 200 mm cellulose bre - 85% efcient Option Option
c. 75 mm cellulose bre - 65% efcient Option Option
d. 150 mm cellulose bre - 85% efcient Option Option
9. Ø32 PVC pipe drain connector Std Std
10. Mineral salt deconcentration by
a. Deconcentration manifold NA Std
b. Conductivity sensor NA Option
(component 12 mandatory)
11. Flow balancing valve Std Std
12. Humidier control only with CCB box NA Option
(including components 5b and 7)
13. Droplet separator
Std if:
- V>3 m/s cellulose
- V>3.5 m/s breglass
Std if:
- V>3 m/s cellulose
- V>3.5 m/s breglass
14. Submersible UV lamp Option Option
15. AHU control NA Option (including components 5b, 7
and 12)
The humidier is pre-wired when option 15 (AHU control) has been selected. Otherwise, the installer is responsible for
wiring.
3.2 - General recommendations
Recommendations for optimised operation
The air passing through the module must be ltered at least to ltration standards F7 and ePM1 50% in order to prevent fouling of
the humidier cassettes. Finer ltration may also be necessary in hospitals, food processing and electronics settings. We recommend
that a water lter be installed on the supply.
If the supply water for the humidier has a calcium content above the recommended level (see "drinking water network analytical
parameters" after component 9), we recommend that the water be demineralised.
When the humidifier is the last component of the Unit, we recommend that an expansion valve be positioned 1,000 mm
downstream of the humidifier.
Recommendations for use in accordance with hygiene standard VDI6022
This adiabatic evaporative humidier option is certied in accordance with VDI6022 subject to certain restrictions and operating
conditions:
- The standard relates to RW and DW humidiers equipped with an inorganic breglass medium
-DW humidiers must be equipped with 3-way valves
-RW humidiers must be equipped with CCB control boxes (the option includes the supply and drainage solenoid valves)
-These humidiers and their control boxes are designed so that they ensure complete drainage of the water from the tank and
the supply and drainage pipes during one-o󰀨 or permanent shutdowns of the humidication system for more than 48 hrs.
-Whenever the humidier is shut down, the Unit controller must ensure that the humidier media are dried completely.
-The water supply pipes must be equipped with a device preventing any water from returning to the drinking water column.
3 - DESCRIPTION
EVAPORATIVE HUMIDIFIER EN- 6

4 - TECHNICAL CHARACTERISTICS
4.1 - General characteristics of the humidier
Permissible air ow in m3/hr, for DW and RW humidiers:
Size of the Air Handling Units 10 15 20 25 35 45 60 70
Without separator - cellulose bre 2927 4007 6167 8143 10336 12539 19559 21298
Without separator - breglass 3415 4675 7195 9500 12058 14629 22819 24847
With separator - cellulose bre + breglass 4878 6678 10278 13572 17226 20898 32598 35496
Indicative water consumption (depending on air conditions)
• recirculated water (RW) dehumidier:
Evaporated water ow rate in l/hr with pump (pH neutral, medium TH), T°=30°C and 10% RH
Type of humidier medium Flow rate in l/hour for 1,000 m3/hr of air
Fibreglass or cellulose bre - 65% efcient 5.6 l/hr
Fibreglass or cellulose bre - 85% efcient 7.1 l/hr
Example: AHU025- humidier 85% -8,000 m3 /hr =8 x 7.1 = 56.8 l/hr
Deconcentration ow rate (to limit mineral salt concentration in the tank):
Deconcentration ow rate = see the "technical recommendations" paragraph in "mineral salt deconcentration by a. Deconcentration
manifold"
Water consumption = evaporation ow rate + deconcentration ow rate
• direct water (DW) humidier:
Evaporation module with continuous water supply.
Direct water supply total ow rate in l/h (=3*Evaporated water ow rate):
Air handling unit 10 15 20 25 35 45 60 70
Fibreglass or cellulose bre - 65% efcient
36 54 75 100 125 145 210 240
Fibreglass or cellulose bre - 85% efcient 44 72 90 120 145 175 250 290
This total water supply ow rate for the humidier assembly must be distributed evenly across each medium in proportion to the
width of the cassette, using the balancing valves (see §4.2 - item 11)
Module casing 304 stainless steel
Max. inlet water pressure 6 bar
Max. inlet water temperature 15°C
Drain dimension 32 mm PVC piping
Min./max. air temperature on the humidier 5°C/40°C
EN-7 EVAPORATIVE HUMIDIFIER

4.2 - Characteristics of the components
1. Water supply connection
Technical characteristics 1/2" BSP-M stainless steel pipe
Technical recommendations Connect the mains water to the 1/2” BSP male connector oat valve with a shut-off valve. Apply sealant before connecting.
Ensure that the supply pipes can be uncoupled from the humidier downstream of the shut-off valve, so that the humidier
and the front panel can be removed completely in the event of heavy maintenance.
2. Float ll valve
Technical characteristics 304 stainless steel
Technical recommendations
The oat valve can be adjusted by 25 mm vertically using a 20 mm spanner, to adjust the tank water levels (image 1). When
the tank is full, the water level must be 3 cm below the overow. During operation, the level must never drop below the foot of
the pump, as this can damage the pump irrevocably (image 2).
The water level in the tank can also be adjusted by altering the rotation (max. 110°) of the oat, using a 10 mm spanner (image
3).
Images
1).
(*) 25 mm
2).
70 mm
3).
110 °
4 - TECHNICAL CHARACTERISTICS
EVAPORATIVE HUMIDIFIER EN- 8

3. High and low water level sensor
Technical characteristics 304 stainless steel
Technical recommendations
Caution: Remove the protective net from the oat before system start-up.
Low level: This connection is mandatory to protect the operation of the recirculation pump, as it activates and deactivates the
pump when it detects a minimum water level in the tank (if the humidier control option has been selected  , connector J17
on the SEF-028 card in the Control Box - NO contact).
High level: The maximum level is used as a safety system if the water supply oat valve fails. It must not be used to control
the water supply. If the equipment has a supply solenoid valve, connect it here so that it is shut off by the safety system (if
the humidier control option has been selected,  connector J16 on the SEF-028 card in the control box - NC contact).
Images
Low level
NO
High Level Common
Terminal
Low level
NC
High level
NC
High level
NO
Low Level Common
Terminal
S2
S2
(Vmax = 110 VAC)
Max.
level
Max.
level Filling solenoid
valve
Min. level
Pump
4 - TECHNICAL CHARACTERISTICS
EN-9 EVAPORATIVE HUMIDIFIER

4. Recirculation pump
Technical characteristics Pump main body: Polypropylene
Pipe hydraulic body: AISI-304 stainless steel
Pump shaft: AISI-420 stainless steel
Fastenings: AISI-316 stainless steel
Impeller: acetal resin (POM)
Motor casing: Polypropylene (60 W) or aluminium (125 W)
Rated power 60 W (0.13 A) or 125 W (0.36 A) depending on size, medium and efciency.
400 V/3~+PE/50 Hz connection
Connection box: PG9 packing box, max. cable Ø = 8 mm. IP 54
Technical recommendations Connect the power supply line to the terminal connection box on the water irrigation pump.
Unless the control option has been selected (humidier only or AHU), the protection and power supply of the pump must be
determined by the system project designer. When option 12 - humidier control - has not been selected, we recommend a
thermal-magnetic circuit breaker with a rated current of:
0.1…0.16 A for the 60 W pump or 0.25…0.4 A for the 125 W pump.
Always respect the phase order. If the phases are reversed, the pump will turn in the wrong direction, the water
ow rate will be reduced and the efciency will be compromised.
To avoid this, use a phase order detector when connecting the supply and check the water ow rate passing
through the ow balancing valves on the Cassette irrigation pipes. For information, an arrow on the motor casing
shows the motor's rotation direction.
Images
STAR CONNECTION
(400 V/III/50 Hz)
THREE-PHASE PUMP WIRING DIAGRAM
Name Description
L1 Disconnecting switch for electrical isolation
SEL 1-2 3-4 5-6
1
0
X0 External housing
X1 Pump connection box (IP55)
Included if
there is a
control box
(humidifier
control option)
Included on the
humidifier
5. 2-way valve
Technical characteristics Valve connection: 1/2” G
Servomotor (motorised valve):
Power consumption 5 VA/3.5 W.
Supply voltage 24 VAC - 2 control points.
Cable cross-section 0.75 mm², length 0.9 m
Rated torque: 7 Nm.
IP54.
Technical recommendations In the event of a power failure, the motorised valve remains in the closed position. To drain the humidier, the
valve must be forced open on the servomotor (see image below).
See below
4 - TECHNICAL CHARACTERISTICS
EVAPORATIVE HUMIDIFIER EN- 10

5. 2-way valve
Images Manual valve:
Discharge/drain valve
closure
Discharge/drain valve
opening
Servomotor (motorised valve):
Adjustment: auxiliary
contact A, B
Factory setting
A = 5°
B = 85º
PIN Cable meaning
Code No. Colour Abbrev.
Actuators
AC 24 V
DC 24.48 V
G1 red RD System potential AC 24 V/DC 24.48 V
G0 2black BK Neutral
Auxiliary switches
Q11 S1 grey/red GY RD Switch A Input
Q12 S2 grey/blue GY BU Switch A normally closed contact
Q14 S3 grey/pink GY PK Switch A normally open contact
Q21 S4 black/red BK RD Switch B input
Q22 S5 black/blue BK BU Switch B normally closed contact
Q24 S6 black/pink BK PK Switch B normally open contact
4 - TECHNICAL CHARACTERISTICS
EN-11 EVAPORATIVE HUMIDIFIER

6. Motorised 3-way valve - (DW humidier only)
Technical characteristics Servomotor: as for the 2-way valve
Technical recommendations The 3-way valve is used to supply water to the media and to completely drain the pipes (thus preventing water from
stagnating in the system).
Images
ASSEMBLIES IN
DIRECTION OF
WATER FLOW
WATER SUPPLY
FLOW
DIRECTION
FLOW FOR MANIFOLD/IRRIGATION
SYSTEM DRAINAGE
Flow from
manifold/
irrigation
distribution
Flow towards
manifold/irrigation
distribution
Flow towards
tank
Water supply
7. Supply solenoid valve
Technical characteristics Rated power 8 W
Voltage: 24 VAC/50/60 Hz - NC contact
Valve connection: 1/2” G
IP55
Technical recommendations This valve is supplied unmounted. It should be located upstream of the oat valve, on the outside of the unit. The high level
on the level sensor must control this solenoid valve. It acts as a safety system in the event that the oat valve fails. It must
not be used to control the water supply. Control is managed by the oat valve.
Images
Water lling/supply NC
solenoid valve, ½” G, brass 24 V connector (L1+N+E)
24 V coil
(50/60 Hz)
4 - TECHNICAL CHARACTERISTICS
EVAPORATIVE HUMIDIFIER EN- 12

8. Medium cassette
Technical characteristics Cellulose bre:
Organic material.
- 65% efcient  100 mm
or
- 85% efcient  200 mm
Fibreglass: IARC Group 3 (not classiable as to its carcinogenicity to humans).
Inorganic material coated with a biocide (silver-zeolite). M0-A1 re rating. Contains silver ions that increase the action
against the development of microorganisms. Media compatible with hygiene standard VDI6022.
- 65% efcient  75 mm
or
- 85% efcient  150 mm
Technical recommendations The water quality and deconcentration system settings make it possible to improve the service life of the medium.
Fibreglass can be cleaned with weak acetic acid (15-20%) or wine vinegar.
9. Ø32 PVC pipe drain connector
Technical characteristics Ø32 male PVC pipe
Technical recommendations Provide a glued coupling sleeve for Ø32 PVC pipe. Provide a drain trap, not supplied. Ensure that the drain pipe can be
uncoupled from the humidier, so that the humidier and the front panel can be removed completely in the event of heavy
maintenance. For the sizing of the drain trap, see § 7.1. Condensate drain trap.
The drain pipe must be Ø32 or more for satisfactory draining of the water.
Deconcentration system:
The water in the medium evaporates as the water vapour pressure in the medium is greater than the pressure of the air passing
through it. Given that only the water evaporates, the concentration of the dissolved mineral salts increases, despite the fact that
water is added to compensate for the evaporation.
To delay the formation of mineral deposits on the surfaces of the evaporation panel (which will result in a gradual increase in the
air pressure loss and a reduction in operational e󰀩ciency), it is essential that some of the recirculation water is discharged to the
drainage network so that "clean" water can be supplied regularly.
Drinking water network analytical parameters (recommended).
1. Conductivity: between 60 and 350 µ S/cm
2. Total hardness (CaCO3): between 20 and 100 mg/L
3. Ionic silica (Si02) < 30 mg/L
4. Iron (Fe) < 0.2 mg/L
5. Oils and fats < 2 mg/L
6. Total dissolved solids < 450 mg/L
7. PH: between 6 and 8
8. Water quality standards described in the second table below
The table below contains the chloride values required for each water type.
Chlorides
Drinking water Fresh water De-ionised water
< 50 mg/litre < 25 mg/litre < 5 mg/litre
No. Name Standard value
1 Common bacteria Colonisation number per 100 or less than 1 mL
2 Escherichia Coli Not detected
3 Cadmium and compounds ≤ 0.003 mg/l (volume of Cadmium)
4 Mercury and compounds ≤ 0.0005 mg/l (volume of Mercury)
5 Selenium and compounds ≤ 0.01 mg/l (volume of Selenium)
6 Lead and compounds ≤ 0.01 mg/l (volume of Lead)
7 Arsenic and compounds ≤ 0.01 mg/l (volume of Arsenic)
8Chromium [VI] and compounds ≤ 0.05 mg/l (volume of Chromium [VI])
9 Cyanide and Cyanogen chloride ≤ 0.01 mg/l (volume of Cyanogen)
10 Nitrate and nitrite ≤ 10 mg/l
11 Fluoride and compounds ≤ 0.8 mg/l (volume of Fluoride)
12 Boron and compounds ≤ 1.0 mg/l (volume of Boron)
13 Carbon tetrachloride ≤ 0.002 mg/l
4 - TECHNICAL CHARACTERISTICS
EN-13 EVAPORATIVE HUMIDIFIER

No. Name Standard value
14 1,4-Dioxane ≤ 0.05 mg/l
15 Cis-1,2-Dichloroethylene and trans-1,2-Dichloroethylene ≤ 0.04 mg/l
16 Dichloroethylene ≤ 0.02 mg/l
17 Tetrachlorethylene ≤ 0.01 mg/l
18 Trichloroethylene ≤ 0.01 mg/l (the standard value was tightened in 2011 from 0.03 mg/l)
19 Benzene ≤ 0.01 mg/l
20 Chlorate ≤ 0.6 mg/l
21 Chloroacetic acid ≤ 0.02 mg/l
22 Chloroform ≤ 0.06 mg/l
23 Dichloroacetic acid ≤ 0.04 mg/l
24 Dibromochloromethane ≤ 0.1 mg/l
25 Bromate ≤ 0.01 mg/l
26 Total trihalomethane (chloroform dibromochloromethane, bromodichloromethane and
bromoform) ≤ 0.1 mg/l
27 Trichloroacetic acid ≤ 0.2 mg/l
28 Bromodichloromethane ≤ 0.03 mg/l
29 Bromoform ≤ 0.09 mg/l
30 Formaldehyde ≤ 0.08 mg/l
31 Zinc and compounds ≤ 1.0 mg/l (volume of Zinc)
32 Aluminium and compounds ≤ 0.2 mg/l (volume of Aluminium)
33 Copper and compounds ≤ 1.0 mg/l (volume of Copper)
34 Sodium and compounds ≤ 200 mg/l (volume of Sodium)
35 Manganese and compounds ≤ 0.05 mg/l (volume of Manganese)
36 Chloride 200 mg/l or less
37 Calcium, Magnesium 300 mg/l or less
38 Anionic surfactant 0.2 mg/l or less
39 (4S, 4aS, 8aR) -4,8a-dimethyloctahydronaphthalen-4a (2e) -ol (or Geosmin) 0.00001 mg/l or less
40 1,2,7,7-Tetramethylbicyclo[2,2,1]-Heptane-2-ol (or 2-Methylisoborneol) 0.00001 mg/l or less
41 Nonionic surfactant 0.02 mg/l or less
42 Phenols ≤ 0.005 mg/l (converted to volume of Phenols)
43 Organic substances (totalling organic carbon) 3 mg/l or less
44 Taste Not abnormal
45 Odour Not abnormal
46 Colour ≤ 5 degrees
47 Turbidity ≤ 2 degrees
Information on water hardness:
ppm or mg/L µS/cm °F (French degrees) hardness
0-70 0-140 0-7 very soft
70-150 140-300 7-15 soft
150-250 300-500 15-25 slightly hard
250-320 500-640 25-32 moderately hard
320-420 640-840 32-42 hard hard
above 420 above 840 above 42 very hard
Deconcentration and therefore the replacement of the recirculation water can be done in two ways:
a. by deconcentration manifold (continuously)
b. by conductivity sensor
4 - TECHNICAL CHARACTERISTICS
EVAPORATIVE HUMIDIFIER EN- 14

10. Mineral salt deconcentration by
a. Deconcentration manifold
Technical characteristics PVC manifold + balancing valve assembled on the humidier, located between the media water distribution column and the
drain (see image below).
Technical recommendations Extent of deconcentration or continuous draining based on conductivity.
Draining ow rate calculation via the ow control valve (see §11 below)
Draining based on the concentration cycle COC.
Draining ow rate = Evaporation/(COC-1)
Concentration cycle COC based on conductivity (100-1000 µS/cm)
Note: Always with the recommended drinking water network parameters.
• 100 µS/cm = 9 COC
• 550 µS/cm = 6 COC
• 1,000 µS/cm = 2 COC
Water evaporation calculation:
Evap[l/min] = Qair x 60 x ρair x Woutlet - Winlet x 0.001
Qair: air ow [m3/hr]
ρair: air density [kg/m3] (≈ 1.2)
Woutlet= absolute humidity of air at outlet [g/kg]
Winlet= absolute humidity of air at inlet [g/kg]
Sample calculation:
• On the basis of the drinking water network parameters
• Water evaporation = 3.23 l/min
• Water conductivity = 550 µS/cm
• COC= 6
• Draining = 3.23/ (6-1) = 0.65 l/min
Otherwise, the system can be set to approximately 10% of the total irrigation ow rate (see §11 below). By periodically
observing the state of the panels; after 1 or 2 weeks of operation, if there are no white mineral deposits on the surface, the
draining ow rate can be reduced, or, conversely, increased if scale is observed.
Caution: The continuous draining/deconcentration ow rate must not be less than 0.31 l/min
Images
10. Mineral salt deconcentration by
b. Conductivity sensor
Technical characteristics Conductivity sensor + control box expansion board
Note: humidier control option required.
Technical recommendations Screw the conductivity sensor onto the humidier tank.
Connect the conductivity sensor to board SEF-026 in the control box (component 12). Calibrate the sensor with the
calibration solutions supplied as accessories. Perform several media washing cycles (see §5) and then congure the
conductivity threshold on clean water, in accordance with the recommendations for the humidier control option (see
explanations in §7.7 of the manual supplied with the unit).
4 - TECHNICAL CHARACTERISTICS
EN-15 EVAPORATIVE HUMIDIFIER

11. Flow balancing valve
Technical characteristics Control valve + 1/2” brass ow meter.
Technical recommendations Adjust the irrigation vales for the evaporation cassettes to guarantee the recommended water ow rate for complete
humidication of the media. The ow rate is read at the oat's low level. The value of 1 litre/second per square metre of
irrigation surface is sufcient to compensate for the water evaporation. The irrigation surface area is the width of the cassette
x its thickness.
Information for calculating the water ow rate:
Cellulose media 65 % efciency, thickness = 100 mm
Cellulose media 85 % efciency, thickness = 200 mm
Fibreglass media 65 % efciency, thickness = 75 mm
Fibreglass media 85 % efciency, thickness = 150 mm
Excess irrigation water is important to ensure continuous surface washing of the panels.
Sample irrigation per cassette:
Cassette width (500 mm) and Panel thickness (150 mm)
Irrigation ow rate per cassette = 0.5 m x 0.15 m x 60= 4.5 l/min
Images
Control is carried out
using a at-headed
screwdriver in the location
indicated
Control valve + ½” brass
ow meter to adjust the
irrigation of each
cassette.
12. Humidier control only
Technical characteristics The Basic Control Box (CCB) is supplied separately, in an insulating housing made up of a base and a folding cover made
from RAL 7035 coloured ABS, weather resistant (in accordance with IEC 60998-1//60998-2-5), with ingress protection rating
IP56 in accordance with EN 60529 and impact protection rating IK07 in accordance with EN 50-102/96.
CCB control box operating range: -10°C/40°C.
Technical recommendations (see MCCB manual §7) + wiring diagram in related documents (§6)
13. Droplet separator
Technical characteristics Polypropylene
Technical recommendations For high air speeds (V>3 m/s for cellulose media and 3.5 m/s for breglass media), the humidiers have a second PP
cassette that collects the droplets running off the media.
Images
4 - TECHNICAL CHARACTERISTICS
EVAPORATIVE HUMIDIFIER EN- 16

14. Submersible UV lamp
Technical characteristics Lamp submerged in the tank.
Supply voltage: 230 V/50 Hz.
Power: 18 or 36 W depending on model
IP68, CE
UV lamp -C more details §8.2.1
Technical recommendations These UV rays carry a strong risk of burning if they fall directly on the skin or eyes! ! Disconnect the power before
carrying out any work on the lamp !
On this option, a door safety contact is mandatory and connected if the AHU control option has been selected
(otherwise the installer is responsible for the door contact wiring). This contact cuts the supply to the UV lamp
each time the door is opened. However, as a safety measure, deactivate the UV lamp then reactivate it after the
operation (see §7.6.a).
See MCCB manual §7 + submersible UV lamp manual §8.
Images
UV lamp
(emitter)
Supply unit
Emitter
cable
Control box
cable
UV lamp
(emitter)
Emitter
cable
Supply unit
Control
box cable
15. AHU control
Technical characteristics See controls manual - FR 7486826
Technical recommendations See controls manual - FR 7486826
The unit controls govern the CCB control box. For this, "auto" mode must be enabled on the box.
When installing an air handling unit containing a humidier with a recycling pump, it is IMPERATIVE that appropriate
systems for combating microorganisms and bacteria are put in place (this must only be done by personnel with the required
expertise).
It is IMPERATIVE that a risk assessment be carried out regarding the growth of microorganisms and bacteria, particularly
Legionella.
4 - TECHNICAL CHARACTERISTICS
EN-17 EVAPORATIVE HUMIDIFIER

5 - INSTALLATION/START-UP/MAINTENANCE
Fibreglass media may contain breglass dust residue. On start-up, maintenance or replacement of the media, remember
to wear a FFP2 or FFP3 mask to protect against the potential risk of inhaling this dust.
Humidifiers have a high voltage power supply. The wiring, connections and electrical connections must be performed in
accordance with national standards and by qualified personnel.
The power supply must be disconnected during installation and maintenance operations.
5.1 - Installation
1. Water connection (see components 1 and 9)
In the specic case where the dew point temperature of the air exiting the humidier is substantially higher than the water
supply temperature, areas of condensation may appear in the following locations:
-On the water supply pipe
-On the walls of the tank (specically for direct water (DW) humidiers).
In this specic case, to avoid this problem, insulate the tank walls and pipes.
2. If the humidier is not wired (AHU control option not selected), make the electrical connections for the pump, water level and,
depending on the options selected, the motorised 2-way valve, motorised 3-way valve (for RW humidiers), supply solenoid
valve, conductivity sensor and submersible UV lamp (see components 4, 3, 5.b, 6, 7, 10.b, 14).
3. If the humidier control and/or AHU control option has been selected, secure the humidier CCB control box (component 12)
to the front panel, run the cables through the packing boxes and connect the cables to the connectors on the SEF-028 card in
the CCB control box (see MCCB manual §7). To connect the humidier unit to the main unit, see the wiring diagram for the
AHU and the general IOM.
These electrical connections must be made by qualied personnel. Select the correct cross-section for the leads: see the
technical characteristics of each component above. If the AHU control or humidier control option has not been selected,
protect the power supply with a suitable thermal circuit breaker.
4. Check that all the pipe connections are tight.
5. Check the direction of rotation of the pump.
6. After start-up, check that the input current does not exceed the stated current.
5.2 - Start-up
The humidier control box (CCB) can be in manual mode for the start-up settings, but if the AHU control option has been
selected, it is imperative that it be returned to "auto" mode before standard operation, so that it is controlled by the AHU
PLC (component 15). See MCCB manual §7.
If the AHU control option (option 15 in § 3.1) is selected, to start up the humidier with the AHU deactivated, bridge the
AHU fault return (J20 - IN3) then switch to manual "on" mode. Caution: remove the bridge when system start-up is complete
If the UV lamp option is selected, although there is a door contact to cut the supply to the UV lamp, the UV lamp should
be deactivated before any work is carried out on the humidier (see §7.6.a). Reactivate the UV lamp after the operation
1. Clean the tank and perform a cleanliness check before start-up, remove the protective net from the oat on the water level
detector.
2. Adjust the balancing valves on each cassette (component 11)
3. Fill the tank with water, then adjust the water level with the oat valve (component 2)
4. Adjust the deconcentration valve if the conductivity sensor option has not been selected (component 10.a)
5. Install the control box, see MCCB manual §7 (component 12)
Before the AHU is started up (fan motor assemblies not operating), perform several tank drainage cycles after at least
6 hours of operation of the humidier only, to wash the cells and remove the scum and odour that may have been
caused by the inorganic material dust remaining after the manufacturing process.
6.
For breglass media, avoid getting washing water (which will contain breglass dust) in contact with skin.
7. Filling the drain trap
Remember to isolate the supply and drain pipes and the drain trap and provide a frost protection device for the water in the
drain trap to prevent freezing on installations in environments where temperatures can drop below zero.
8. If the AHU control option has been selected, remember to switch back to "auto" mode on the humidier control box.
EVAPORATIVE HUMIDIFIER EN- 18

5.3 - Maintenance
If the UV lamp option is selected, although there is a door contact to cut the supply to the UV lamp, the UV lamp should
be deactivated before any work is carried out on the humidier (see §7.6.a). Reactivate the UV lamp after the operation
The main components that require maintenance are as follows:
-Once a month, the irrigation pump: The most important thing is to check that dirt does not clog the suction and discharge circuit
and that electricity consumption is below the rated consumption stated on the plate.
-Once a year, the oat valve: Its mechanical opening and closing function must be inspected periodically.
-Once a year, the drain valves: Their mechanical control function must be inspected periodically.
-Once a year, the solenoid valves (if any): Their mechanical opening and closing function must be inspected.
-Once every three months, the evaporation panels: check for wear and fouling due to lime scale deposits.
If there is visible deterioration of the breglass medium, dispose of the medium (see § Disposal below).
Their service life, with a drinking water or industrial water supply, depends mainly on the correct operation of the continuous
draining or mineral salt deconcentration system, which prevents the formation of lime scale deposits on the surface. If
this is not well controlled, the panels will have to be replaced very quickly, as the air will be prevented from passing through
them by the deposits. Fibreglass can be cleaned with weak acetic acid (15-20%) or wine vinegar.
-Once a year, the irrigation: Follow the steps described on the "Cleaning the individual irrigation system" page.
We recommend frequent observations in the days following start-up, which will indicate the actual behaviour of the
installation. Similarly, during long periods of inactivity, it is essential that the equipment be drained completely.
Before carrying out any work, remember to deenergise all of the components (pump, UV lamp, servomotors, etc.)
5.4 - Disposal of the product and efuent generated
Comply with the regulations in force.
Please see paragraph 12-FINAL SHUTDOWN of Instruction Manual FR 7486825 for the Unit, supplied with the product.
5.5 - Cleaning and disinfection
The water tank, irrigation system and other components of the humidier are specially designed to drain completely by gravity,
without help from mechanical components.
Evaporative humidiers must be cleaned regularly to prevent them from becoming contaminated; all of the surfaces of their
components (panels, pipes and particularly the water tank) must be disinfected with an appropriate solution.
If the inorganic medium (breglass) is not damaged, it can be cleaned after removal using a weak acetic acid solution or an oxygen-
based household bleaching agent dissolved in water. In this case, the complete cassette (with water distribution cover) should be
submerged in a container of solution for approximately one hour. Rinse the medium with water when it is removed from the solution.
If the foam has not completely disappeared, submerge the cassette again in a container of water then rinse with a water jet. The
cleaning process can be repeated as often as necessary.
Allow the medium to dry completely before retting the cassette in its frame.
Cleaning process only compatible with breglass media (inorganic material).
The use of chemical disinfectants for day-to-day maintenance of the panels is not recommended, as it could reduce the e󰀩ciency
and service life of the panel. If it is necessary to use chemicals, either due to a long period of inactivity or for any other reason, an
e󰀨ective method is to submerge the panels in a disinfectant containing chlorine, such as sodium hypochlorite (bleach) or sodium
percarbonate. When using disinfectants containing chlorine, it is imperative that you take into account the fact that toxic chlorine
gas forms if they are combined with an acidic solution.
The composition of the inorganic breglass panel includes agents that inhibit the growth of bacteria and fungi, such as silver and
zinc pyrethrin. These agents are bacteriostats, not disinfectants.
We recommend that treatment be added to the water used to supply the humidier.
HEF2E humidiers have obtained a "hygiene compliance test" certicate. They meet the requirements of the following standards:
Air conditioning:
• VDI 6022, part 1 (07/2011)
• SWKI VA104-01 (04/2006)
• VDI 3803, part 2 (02/2010)
Hospitals:
• DIN 1946-4, (12/2008)
5 - INSTALLATION/SYSTEM START-UP/MAINTENANCE
EN-19 EVAPORATIVE HUMIDIFIER

All of the materials included in the humidier have obtained negative results regarding the proliferation of pathogenic microorganisms.
The non-metal components meet the requirements of UNE-EN 16421:2015 “Inuence of materials on water for human consumption:
Enhancement of microbial growth”.
To ensure satisfactory operation in accordance with hygiene standard VDI6022, maintenance must be performed regularly in
accordance with the instructions given in table 6, §6.6 of VDI 6022; a maintenance log must also be kept.
5.6 - Removing the media
B
°
Remove the manifold + evaporative cassette irrigation ow control valve assembly.
Unscrew the connections on each irrigator Unscrew the connections
Manifold + irrigation ow control valve assembly
c
a b
5 - INSTALLATION/SYSTEM START-UP/MAINTENANCE
EVAPORATIVE HUMIDIFIER EN- 20