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