CIAT DW Manuel utilisateur
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 humidier................................................................................................................................... 5
3.2 - General recommendations.................................................................................................................................................. 6
4 - TECHNICAL CHARACTERISTICS ......................................................................................................................................... 7
4.1 - General characteristics of the humidier............................................................................................................................. 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 euent 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 - Conguration..................................................................................................................................................................... 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 humidier, 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 specic recommendations relating to the humidier are described below in paragraphs 3-DESCRIPTION, 4-TECHNICAL
CHARACTERISTICS and 5-INSTALLATION/START-UP//MAINTENANCE.
RESPONSIBILITIES
All personnel operating a humidier are responsible for:
-their personal safety, the safety of other people and the prevention of damage to the humidier
-the correct operation of the humidier
-electrical wiring must be installed in accordance with national standards, by qualied personnel..
These instructions explain how the humidier 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 humidication,
with the benet 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 humidication.
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 humidier
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 humidier
(without pump)
RW humidier
(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% efcient Option Option
b. 200 mm cellulose bre - 85% efcient Option Option
c. 75 mm cellulose bre - 65% efcient Option Option
d. 150 mm cellulose bre - 85% efcient 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. Humidier 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 humidier 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 humidier 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 humidier 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 humidier option is certied in accordance with VDI6022 subject to certain restrictions and operating
conditions:
- The standard relates to RW and DW humidiers equipped with an inorganic breglass medium
-DW humidiers must be equipped with 3-way valves
-RW humidiers must be equipped with CCB control boxes (the option includes the supply and drainage solenoid valves)
-These humidiers 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 humidication system for more than 48 hrs.
-Whenever the humidier is shut down, the Unit controller must ensure that the humidier 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 humidier
Permissible air ow in m3/hr, for DW and RW humidiers:
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) dehumidier:
Evaporated water ow rate in l/hr with pump (pH neutral, medium TH), T°=30°C and 10% RH
Type of humidier medium Flow rate in l/hour for 1,000 m3/hr of air
Fibreglass or cellulose bre - 65% efcient 5.6 l/hr
Fibreglass or cellulose bre - 85% efcient 7.1 l/hr
Example: AHU025- humidier 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) humidier:
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% efcient
36 54 75 100 125 145 210 240
Fibreglass or cellulose bre - 85% efcient
44 72 90 120 145 175 250 290
This total water supply ow rate for the humidier 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 humidier 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 humidier downstream of the shut-off valve, so that the humidier
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 overow. 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 humidier 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 humidier 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 efciency.
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 (humidier only or AHU), the protection and power supply of the pump must be
determined by the system project designer. When option 12 - humidier 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 efciency 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 humidier, the
valve must be forced open on the servomotor (see image below).
See below
4 - TECHNICAL CHARACTERISTICS
EVAPORATIVE HUMIDIFIER
EN- 10
Ce manuel convient aux modèles suivants
1
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