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CIAT DW Manual

CIAT DW Manual

Evaporative humidifier
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EN7548388.00
10 - 2018
I n s t a l l a t i o n
O p e r a t i o n
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M a i n t e n a n c e

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Summary of Contents for CIAT DW

  • Page 1 EN7548388.00 10 - 2018 I n s t a l l a t i o n O p e r a t i o n M a i n t e n a n c e...

  • Page 3: Table Of Contents

    CONTENTS 1 - TECHNICAL RECOMMENDATIONS/WARRANTY ......................... 4 2 - OPERATING PRINCIPLE ............................... 4 3 - DESCRIPTION ..................................5 3.1  -  General description of the humidifier........................... 5 3.2 - General recommendations ..............................6 4 - TECHNICAL CHARACTERISTICS ............................7 4.1  -  General characteristics of the humidifier ..........................7 4.2 - Characteristics of the components ............................8 5 - INSTALLATION/START-UP/MAINTENANCE ........................

  • Page 4: Technical Recommendations/Warranty

    1 - TECHNICAL RECOMMENDATIONS/WARRANTY For  all  technical  recommendations  relating  to  the  humidifier,  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 specific recommendations relating to the humidifier are described below in paragraphs 3-DESCRIPTION, 4-TECHNICAL  CHARACTERISTICS and 5-INSTALLATION/START-UP//MAINTENANCE. RESPONSIBILITIES All personnel operating a humidifier are responsible for: - their personal safety, the safety of other people and the prevention of damage to the humidifier...

  • Page 5: Description

    3 - DESCRIPTION 3.1 - General description of the humidifier Recirculated water model - RW Direct water model - DW    EN-5   EVAPORATIVE HUMIDIFIER...

  • Page 6: General Recommendations

    3 - DESCRIPTION DW humidifier RW humidifier Component (without pump) (with pump) 1. Water supply connection 2. Float fill valve 3. High and low water level sensor 4. Recirculation pump 5. 2-way valve a. Manual b. 24 VAC motorised - Two control points Option 6.

  • Page 7: Technical Characteristics

    Fibreglass or cellulose fibre - 85% efficient 7.1 l/hr Example: AHU025- humidifier 85% -8,000 m  /hr =8 x 7.1 = 56.8 l/hr Deconcentration flow rate (to limit mineral salt concentration in the tank): Deconcentration flow rate = see the "technical recommendations" paragraph in "mineral salt deconcentration by a. Deconcentration  manifold" Water consumption = evaporation flow rate + deconcentration flow rate • direct water (DW) humidifier: Evaporation module with continuous water supply. Direct water supply total flow rate in l/h (=3*Evaporated water flow rate): Air handling unit Fibreglass or cellulose fibre - 65% efficient Fibreglass or cellulose fibre - 85% efficient This total water supply flow rate for the humidifier 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.

  • Page 8: Characteristics Of The Components

    4 - TECHNICAL CHARACTERISTICS 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 float valve with a shut-off valve. Apply sealant before connecting. Ensure that the supply pipes can be uncoupled from the humidifier downstream of the shut-off valve, so that the humidifier and the front panel can be removed completely in the event of heavy maintenance.
  • Page 9 4 - TECHNICAL CHARACTERISTICS 3. High and low water level sensor Technical characteristics 304 stainless steel Technical recommendations Caution: Remove the protective net from the float 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 humidifier control option has been selected , connector J17 ...
  • Page 10 4 - TECHNICAL CHARACTERISTICS 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 efficiency.
  • Page 11 4 - TECHNICAL CHARACTERISTICS 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 Cable meaning Code Colour Abbrev. Actuators System potential AC 24 V/DC 24.48 V AC 24 V black Neutral...
  • Page 12 4 - TECHNICAL CHARACTERISTICS 6. Motorised 3-way valve - (DW humidifier 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).
  • Page 13 4 - TECHNICAL CHARACTERISTICS 8. Medium cassette Technical characteristics Cellulose fibre: Organic material. - 65% efficient 100 mm  - 85% efficient 200 mm  Fibreglass: IARC Group 3 (not classifiable as to its carcinogenicity to humans). Inorganic material coated with a biocide (silver-zeolite). M0-A1 fire rating. Contains silver ions that increase the action against the development of microorganisms.
  • Page 14 4 - TECHNICAL CHARACTERISTICS Name Standard value 1,4-Dioxane ≤ 0.05 mg/l Cis-1,2-Dichloroethylene and trans-1,2-Dichloroethylene ≤ 0.04 mg/l Dichloroethylene ≤ 0.02 mg/l Tetrachlorethylene ≤ 0.01 mg/l Trichloroethylene ≤ 0.01 mg/l (the standard value was tightened in 2011 from 0.03 mg/l) Benzene ≤...
  • Page 15 4 - TECHNICAL CHARACTERISTICS 10. Mineral salt deconcentration by a. Deconcentration manifold Technical characteristics PVC manifold + balancing valve assembled on the humidifier, 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 flow rate calculation via the flow control valve (see §11 below) Draining based on the concentration cycle COC.
  • Page 16 4 - TECHNICAL CHARACTERISTICS 11. Flow balancing valve Technical characteristics Control valve + 1/2” brass flow meter. Technical recommendations Adjust the irrigation vales for the evaporation cassettes to guarantee the recommended water flow rate for complete humidification of the media. The flow rate is read at the float's low level. The value of 1 litre/second per square metre of irrigation surface is sufficient to compensate for the water evaporation.
  • Page 17 4 - TECHNICAL CHARACTERISTICS 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).

  • Page 18: Installation/Start-Up/Maintenance

    5 - INSTALLATION/START-UP/MAINTENANCE Fibreglass media may contain fibreglass 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 specific case where the dew point temperature of the air exiting the humidifier 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 (specifically for direct water (DW) humidifiers). In this specific case, to avoid this problem, insulate the tank walls and pipes. 2.  If the humidifier 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 humidifiers), supply solenoid  valve, conductivity sensor and submersible UV lamp (see components 4, 3, 5.b, 6, 7, 10.b, 14).  3.  If the humidifier control and/or AHU control option has been selected, secure the humidifier 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 humidifier unit to the main unit, see the wiring diagram for the  AHU and the general IOM. These electrical connections must be made by qualified personnel. Select the correct cross-section for the leads: see the  technical characteristics of each component above. If the AHU control or humidifier control option has not been selected, ...

  • Page 19: Maintenance

    5 - INSTALLATION/SYSTEM START-UP/MAINTENANCE 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 humidifier (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 float 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 fibreglass 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.

  • Page 20: Removing The Media

    5 - INSTALLATION/SYSTEM START-UP/MAINTENANCE All of the materials included in the humidifier have obtained negative results regarding the proliferation of pathogenic microorganisms.  The non-metal components meet the requirements of UNE-EN 16421:2015 “Influence 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 ° Remove the manifold + evaporative cassette irrigation flow control valve assembly. Unscrew the connections on each irrigator Unscrew the connections Manifold + irrigation flow control valve assembly...
  • Page 21 5 - INSTALLATION/SYSTEM START-UP/MAINTENANCE ° Remove the PVC-U D25 pipe for assembly to the manifold PVC-U D25 pipe Unscrew the PVC-U DN20 ball check valve connection ° Remove the front cover Unscrew the two screws holding the part in place Front cover  ...
  • Page 22 5 - INSTALLATION/SYSTEM START-UP/MAINTENANCE ° Removing the drain Unscrew the brass connector on the control Unscrew the PVC-U 1/2" connection Drain valve + drain flow meter ° Removing the bracket + pump + level sensor assembly (as an option, the float valve might be mounted on this bracket) Unscrew the bracket If the float valve is mounted on the bracket, disconnect the water supply...
  • Page 23 5 - INSTALLATION/SYSTEM START-UP/MAINTENANCE ° Step 6 of LATERAL removal Removing part "b" ° Unscrew the four screws (two on each side) Removing the evaporative cassettes °    EN-23   EVAPORATIVE HUMIDIFIER...

  • Page 24: Related Documents

    6 - RELATED DOCUMENTS 6.1 - CCB control box wiring diagram (option 12) IÓN   EN- 24 EVAPORATIVE HUMIDIFIER...

  • Page 25: Mccb Manual - Humidifier Control Box

    7 - MCCB MANUAL - HUMIDIFIER CONTROL BOX 7.1 - General description The Basic Control Panel has been specifically designed for interconnection and supervision of the accessories supplied with the  FISAIR Evaporative Humidifiers. The addition of the CCB or CCB+C makes it possible to obtain more precise, simple and reliable  integration into air treatment units. The control panel manages all the accessories of the FISAIR Evaporative Humidifiers:  • Water recirculation pump • Minimum and maximum water level sensor in the tank • Water supply solenoid valve for the tank •...

  • Page 26: Installation

    7 - MCCB MANUAL - HUMIDIFIER CONTROL BOX 7.2 - Installation The Basic Control Panel is supplied in an insulating box made up of a base and folding cover in RAL 7035 coloured ABS, with  weatherproof coating (in accordance with IEC 60998-1//60998-2-5) with protection rating IP56 in accordance with EN60529 and  impact protection rating IK07 in accordance with EN50102/96. Heat and humidity measurement conditions in the installation area: • Relative Humidity [ 5% ... 95% RH], without condensation. • Temperature  [ -10 °C ...  +40°C ] During installation the recommended spaces for connections, inspection and maintenance must be complied with. If the box is  drilled in the places indicated for fixing, it must be ensured that the necessary degree of protection ≥ IP56 is maintained.  The Basic  Control Panel weighs 3.15 kg, and should be installed vertically on a wall (see Figure 1) to maintain the IP56 degree of protection.    Figures 2.1 and 2.2 show the minimum service spaces that must be complied with and the heights of the holes which must be drilled for fixing.

  • Page 27: Description Of Hardware

    7 - MCCB MANUAL - HUMIDIFIER CONTROL BOX 7.3 - Description of hardware Figure 3.1: Front view of the CCB cover    EN-27   EVAPORATIVE HUMIDIFIER...
  • Page 28 7 - MCCB MANUAL - HUMIDIFIER CONTROL BOX Figure 3.2: Bottom view of the CCB   EN- 28 EVAPORATIVE HUMIDIFIER...
  • Page 29 7 - MCCB MANUAL - HUMIDIFIER CONTROL BOX Figure 3.3: Interior of the CCB cover    EN-29   EVAPORATIVE HUMIDIFIER...
  • Page 30 7 - MCCB MANUAL - HUMIDIFIER CONTROL BOX LED / Key Description, Function and Item Code Switch (l1) for switching off and isolating the supply voltage with the possibility of locking by padlock (not supplied) Item code: 64300129 HMI. Control and display interface SEF-027 Item code: 52300007 LED.
  • Page 31 7 - MCCB MANUAL - HUMIDIFIER CONTROL BOX LED / Key Description, Function and Item Code Thermal-magnetic circuit breaker (U1 in the wiring diagram) for protection of the water pump Item code: 64350005 (Pump 55W) Item code: 64350002 (Pump 60W) Item code: 64350003 (Pump 90W) Item code: 64350004 (Pump 125W) Item code: 64350005 (Pump 240W)

  • Page 32: Connections

    7 - MCCB MANUAL - HUMIDIFIER CONTROL BOX LED / Key Description, Function and Item Code Configuration switches CCB information plate Conductivity sensor card SEF-026 for the CCB+C Item code: 64580050 Conductivity sensor with 2 m cable for the CCB+C Item code: 64220250 7.4 - Connections 1) ...
  • Page 33 7 - MCCB MANUAL - HUMIDIFIER CONTROL BOX Max. Power Type of connection Symbol Connection Description Max. Voltage Optional +24 VDC Auxiliary Source of Direct Current 24 VDC 14 VA Mandatory Water supply solenoid valve 24 VAC 40 VA Mandatory Motorised water discharge/drain valve 24 VAC Motorised drain valve position feedback...

  • Page 34: Configuration

    7 - MCCB MANUAL - HUMIDIFIER CONTROL BOX 3)  With the switch in position 0, connect the main power supply, as applicable, to the X1 terminals Connection of three-phase line Connection of single-phase line 7.5 - Configuration Configure the basic control panel depending on the requirements the humidifier was selected to meet. Pay special attention to the  quality of the water supply, the hygiene requirements of the application and the required working cycles. 1)  Configure the tank discharge/drain valve in accordance with the following options: Configure the pins of the SW4 switch according to the  required drainage method A(1) B(2) Drainage Never SEF-026 Never SEF-026 The complete drainage of the tank depends  The tank is not drained  The partial drainage of the tank  on the configuration of the SW3 switch under any circumstances depends on the conductivity control Equipment off Equipment on...
  • Page 35 7 - MCCB MANUAL - HUMIDIFIER CONTROL BOX 2)  Confirmation and complete drainage time: Configure switch SW2 To set the drainage timers Drainage confirmation time Additional drainage time After the order to drain, the maximum time for the  Select the time that the drainage valve must level sensor to confirm the minimum water level,  remain open, once the minimum water level has  in order to identify the obstruction of the drain been  detected,  in  order  to  guarantee  complete  drainage A(1) B(2)
  • Page 36 7 - MCCB MANUAL - HUMIDIFIER CONTROL BOX The table shows the options that can be selected for the different functions. The shaded values are the factory-set times/options. POSITION OF SWITCHES FUNCTION A(1) B(2) PUMP START-UP DELAY 15 s 30 s 60 s 300 s C(3) D(4) DRAINAGE TIME BETWEEN PARTIAL DRAINS WITH CONDUCTIVITY SET-POINT CONTROL 6 min 8 min 10 min 15 min SW2SW2...

  • Page 37: Start-Up

    7 - MCCB MANUAL - HUMIDIFIER CONTROL BOX 7.6 - Start-up When the installation operations are complete, the draining options set, the operating times set and all the connections made: 1.    V erify that the mains voltage corresponds to the supply voltage of the CCB according to its pertinent electrical diagram.  (See  the number of the wiring diagram on the specification plate inside the CCB) 2. Change the state of the switch I1 from position 0 to position 1.         A   scan  is  carried  out  of  the  LEDs  through  the  entire  command  and  viewing  interface  and  the  low  voltage  remote  signalling contact is activated (Connection J25).
  • Page 38 7 - MCCB MANUAL - HUMIDIFIER CONTROL BOX Conductivity meter     How to adjust the set-point: Chosen set-point ► Recommendation: We recommend that the set-point be 20% higher than the first reading, when the clean water tank is filled for the first time. For this operation, the SW1 pump switch must be coded in 300s (A1: ON, B2: ON) so that this reading can be performed without  starting the pump, since if the pump is started, it will contaminate the water in the tank. Once this reading has been noted, return  the switch to its factory setting or according to contractual requirements. Operation: • Once the set-point has been exceeded (for at least 5 minutes), the motorised drain valve opens and the water in the tank is  replaced, with the filling solenoid valve remaining open (the closing of the inlet solenoid valve is only controlled by the maximum  level sensor). • When the measured value falls below the set-point again, the motor closes the drain valve, and the tank is filled until the water  supply is switched off by the float valve. The filling solenoid valve remains open (the closing of the solenoid valve is only  controlled by the maximum level sensor). • If the sensor does not detect anything (no contact with the water), the water level has dropped below the conductivity sensor  and the measured value will therefore be 0 microSiemens, which closes the motorised drain valve. Filling continues until the  measured value rises back above the set-point. The partial drainage cycles are performed in accordance with the drainage  time between partial drains, configured by SW1; see §7.5.

  • Page 39: Conductivity Calibration

    7 - MCCB MANUAL - HUMIDIFIER CONTROL BOX 4.  Select the operating mode that best suits your needs, automatic or manual: For start-up Automatic mode: Manual mode The operating order depends on dry contact H1 (Connection J21) for remote control of the equipment. Equipment in operation Equipment on stand-by, awaiting operating order Equipment in operation by means of H1 5. ...

  • Page 40: List Of Alarms

    7 - MCCB MANUAL - HUMIDIFIER CONTROL BOX 7.8 - List of alarms Alarm indication Component Description of the alarm Recommended action Internal fault on the SEF-025 card. Contact Technical Services Replace the battery and/or contact Technical Services to reload the program into the RAM Conductivity sensor Connection error or damaged component...
  • Page 41 8 - AL-UW SUBMERSIBLE UVC LAMP CAUTION 8.1.3 - Appropriate use For satisfactory operation of the UV unit, it is absolutely essential to follow the assembly instructions and comply with the conditions  of use set out by the manufacturer. The  unit  is  intended  exclusively  for  disinfecting  water  in  closed  filtration,  humidification  and  process  chambers, and must be considered a component part within a system. Operating personnel must follow the instructions in the instruction manual, which can be downloaded free of charge from the online  support section if necessary. Alternatively, it may be ordered free of charge from the manufacturer upon submission of proof of  purchase. Unauthorised modification of the unit is forbidden. Only original spare parts may be used for maintenance  work. Non-compliance with this warning will invalidate any warranty. 8.1.4 - Emissions Radiation: ...
  • Page 42 8 - AL-UW SUBMERSIBLE UVC LAMP 8.1.6 - Authorised operators The unit may only be operated by persons who have read and understood this instruction manual. The minimum age for operating the unit is 18 years. The operator is responsible for any third parties in the operating area, and must prevent misuse of the  unit. The operator is responsible for any damage arising from misuse.  8.1.7 - Safety measures on the installation site The system must be sufficiently firmly anchored to the container designated for the use of the UV system if it is possible that it  might be dislodged from its installation point by buoyancy or vibration. During operation of the UV unit, the disinfection area must be shielded by suitable covers, doors or flaps  rendering it UV-tight with respect to the environment. During work on the open chamber, the UV unit must always be switched off and disconnected from the  mains. Normal  or  acrylic  glass  is  impervious  to  UVC  radiation,  and  thus  already  constitutes  sufficient  visual  protection  during  normal  operation.

  • Page 43: Operating Data And Description Of The Device

    8 - AL-UW SUBMERSIBLE UVC LAMP 8.2 - Operating data and description of the device 8.2.1 - Overview TECHNICAL CHARACTERISTICS Aire Limpio® AL-UW Name Tests EMV, CE, IP68 Max. ambient temperature [°C] -20 to +50 Materials AISI 316 UVGI30 UVGI18 Tubes, type UVGI36 UVGI20...

  • Page 44: Assembly And Connection Of The Unit

    8 - AL-UW SUBMERSIBLE UVC LAMP 8.2.4 - Power supply To guarantee users maximum safety in the event of a failure and maximum power development of the UV system, AL-UW submersible  lamps have a high-frequency electronic ballast, built into the foot of the device and suited to the characteristics of the tube. This  ensures the best possible electrical efficiency and UV radiation. The electronic components are interference-suppressed to a high  level, and can therefore also be used in critical areas. They have an automatic circuit breaker in case of component or lamp faults.  The high voltage stability of the ballast (~190 – 250V) provides for steady ignition behaviour, even in the event of unfavourable  mains-power fluctuations. The high efficiency of all related components ensures low sensible heat (< 35°C). Although the electronics guarantee the reliable ignition of the UVC tube over a very wide temperature range, continuous operation  at temperatures above +50°C or below – 20°C should be avoided. Short-term temperature loads of up to 70°C are possible, but  reduce the service life of the system. This also applies for frequent switching on and off.  8.3 - Assembly and connection of the unit 8.3.1 - General advice for assembly Make sure you take the time to check the unit thoroughly – it’s in your best interests. The submersible lamp is delivered ready for connection and equipped with all the necessary components. Before first use, it is  imperative that you check all components to ensure that they are clean and undamaged. The protective quartz tube of the UV tube  must be free of grease, oil, traces of adhesive or fingerprints. An ordinary lint-free household cloth and a little denatured alcohol  or methylated spirit can be used for cleaning. Check the submersible lamp to make sure that it is undamaged and in good condition (sealing surfaces).

  • Page 45: Unit Operation

    8 - AL-UW SUBMERSIBLE UVC LAMP 8.4 - Unit operation After connection by an expert, the unit is ready for operation and can be used immediately. The system electronics are completely  maintenance-free and cannot be modified; in the event of failure, they must be replaced in full. For more on this subject, see also  the advice given in section 6, “Faults and troubleshooting”. The following two points must simply be borne in mind during operation of the unit: The UVC radiation source/protective quartz tube must remain clean and free from coatings during operation. The UVC radiation source is subject to continuous ageing, and must therefore be changed/ replaced at regular intervals dependent  on the user profile. The frequency of the cleaning cycles depends on the residue formation on the UV tubes/the protective tube. The higher the mineral  concentration in the water (especially iron, calcium and manganese), or the higher the input of adhesive foreign substances in the  process fluid, the more frequently cleaning is required. UV lamps must be cleaned at regular intervals in order to remain in proper working order. The rate of ageing of the radiation source is also dependent upon use. Aire Limpio® UV tubes are normally designed for an  uninterrupted 12,000 hours of use. Should you be unable or unwilling to keep the system in continuous operation, let yourself be  guided by the way normal fluorescent lamps should be dealt with: above all, avoid switching the unit on and off too frequently, as  this leads to unnecessary stress, and hence the ageing of the disinfection lamp. Avoid frequent switching on and off. All switching reduces the service life of the UV lamp. Further information on this subject is available in section 6, “Maintenance and spare parts”.  8.5 - Faults and troubleshooting FAULT CAUSE AND REMEDY Water has entered one or more of the submersible lamps in the system. The residual-current circuit breaker is triggered as This fault can only occur if water gets into the ballast unit of the submersible lamp owing for example to cable damage, soon as the UV device is switched on.

  • Page 46: Maintenance And Spare Parts

    8 - AL-UW SUBMERSIBLE UVC LAMP 8.6 - Maintenance and spare parts 8.6.1 - Warning Always disconnect the unit from the main power supply when carrying out maintenance work. Never look directly at a lit UVC tube without eye protection! Never touch a lit tube. 8.6.2 - Tube replacement/modification UVC tubes have a limited service life. They are subject to a continuous ageing process that is markedly accelerated by frequent  on/off cycles (> 3 on/off cycles/day). Avoid frequent switching on and off. All switching reduces the service life of the UV lamp. The actual burn time of the high-performance UVC tube (> 20,000 hrs) tells us nothing about the actual UVC power available for  disinfection purposes. Under normal operating conditions, the service life of the submersible lamp tubes is approximately 12,000 hrs (25 % ± 5 % decrease ...

  • Page 47: Disposal

    8 - AL-UW SUBMERSIBLE UVC LAMP 8.6.4 - Spare parts Never replace defective components with other manufacturers’ components. Safe operation and a high level of reliability can only be ensured when all safety advice concerning the handling of electronic components is followed, and the components in question are replaced with original accessories and spare parts should the need  arise. Improper handling or the use of other manufacturers’ components can lead to injury and material damage. 8.7 - Disposal 8.7.1 - UVC tubes Like fluorescent lamps, UV tubes contain mercury. They therefore most definitely do not belong in normal household waste! Please ...
  • Page 48 Thermiques This document is not legally binding. Corporation with a capital of €26,728,480 As part of its continuous drive to improve its equipment, CIAT reserves the right Bourg-en-Bresse Register of Trade to make any technical modifications without prior notice.

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