fisair HEF3 CAD Series Installation And Maintenance Manual

fisair HEF3 CAD Series Installation And Maintenance Manual

Evaporative humidifiers for ducts

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HEF3 CAD SERIES
INSTALLATION AND MAINTENANCE MANUAL
OF EVAPORATIVE HUMIDIFIERS FOR DUCTS
MHEF3-CAD-EN-22-2
In compliance with European Union Standards for machinery safety,
It's essential to read this manual in detail before installing units.
FISAIR S.L.U. C/ Uranio, 20, 28330 Madrid, España.
Tel: (+34) 91 692 15 14 | info@fisair.com | fisair.com

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  • Page 1 OF EVAPORATIVE HUMIDIFIERS FOR DUCTS MHEF3-CAD-EN-22-2 In compliance with European Union Standards for machinery safety, It’s essential to read this manual in detail before installing units. FISAIR S.L.U. C/ Uranio, 20, 28330 Madrid, España. Tel: (+34) 91 692 15 14 | info@fisair.com | fisair.com...
  • Page 2 HEF3 Series MANUAL...
  • Page 3: Table Of Contents

    HEF3 Series MANUAL INDEX GENERAL DESCRIPTION ...................... 5 1.1. Safety instructions ......................6 RATING PLATE ........................8 PRODUCT CODE ........................10 INSTALLATION REQUIREMENTS ..................11 DIMENSIONS, CONNECTIONS, FITTINGS AND ADJUSTMENTS HEF3 DIRECT WATER .13 5.1. External dimensions tolerances and connections (standard) ...........13 5.2.
  • Page 4 HEF3 Series MANUAL TABLE OF ILLUSTRATIONS Ilustration 1. Side view of HEF3 .....................33 Ilustration 2. Side view of HEF3 .....................34 Ilustration 3. Disassembly of the side cover ...................35 Ilustration 4. Disassembled casssette ....................36...
  • Page 5: General Description

    (pressure drop). FISAIR evaporative humidifiers work in a similar way to natural processes in rivers, lakes, and seas. The vapour added to the air is exclusively pure water vapour.
  • Page 6: Safety Instructions

    1.1. Safety instructions FISAIR disclaims any liability if not all the installation and operating instructions it has provided are complied with; if the products have been modified or altered without the written consent of FISAIR; or if the products have been subjected to improper use, mishandling, alteration, improper maintenance or show signs of negligent use or being involved in an accident.
  • Page 7 Switch off the unit's power supply when conducting maintenance work or making repairs to the unit. • Never add components to the unit without prior written approval from FISAIR. About the electrical components • Any work that affects the electrical components must be carried out by qualified electricians.
  • Page 8: Rating Plate

    Directive applies” • Model: description of the particular HEF3 device • Serial No.: equipment serial number • FISAIR devices it can be joined with • Machine type: Machine or Partly completed machinery • Designed in accordance with directive •...
  • Page 9 HEF3 Series MANUAL Machine type rating plate HEF3-500-I-CAD...
  • Page 10: Product Code

    HEF3 Series MANUAL 3. PRODUCT CODE MODEL MATERIAL CODE HEF3-500-I-CAD Stainless steel AISI-304 71037007 HEF3-1000-I-CAD Stainless steel AISI-304 71037001 HEF3-1500-I-CAD Stainless steel AISI-304 71037002 HEF3-2000-I-CAD Stainless steel AISI-304 71037003 HEF3-2500-I-CAD Stainless steel AISI-304 71037004 HEF3-3000-I-CAD Stainless steel AISI-304 71037005 HEF3-3500-I-CAD Stainless steel AISI-304 71037006...
  • Page 11: Installation Requirements

    HEF3 Series MANUAL 4. INSTALLATION REQUIREMENTS GENERALITIES In order to optimize maintenance/installation, humidifiers must be placed on a level waterproof surface, with a drain or run-off, so possible leaks can be dealt with during installation, set up, operation and maintenance. Assembly inside an air handling unit must ensure the air being treated passes through the evaporative panels, by closing off the perimeters adequately to prevent possible by-passes of the air flow.
  • Page 12 HEF3 Series MANUAL EVAPORATIVE PANEL DRYING TIME To ensure complete drying of the cooling pad, after a work period, the air fan of the conduct must be working during the times set out in the following table: Before drying the evaporation panel, the ventilation must be stopped for 10 minutes, and watering continued with the cassettes.
  • Page 13: Dimensions, Connections, Fittings And Adjustments Hef3 Direct Water

    HEF3 Series MANUAL 5. DIMENSIONS, CONNECTIONS, FITTINGS AND ADJUSTMENTS HEF3 DIRECT WATER 5.1. External dimensions tolerances and connections (standard)
  • Page 14 HEF3 Series MANUAL L WIDTH H HEIGHT MODEL MATERIAL CODE EQUIPMENT EQUIP M (mm) C (mm) WEIGH (mm) (mm) T kg. HEF3-500- Stainless I-CAD steel AISI- 71037007 HEF3- Stainless 1000-I- steel AISI- 71037001 HEF3- Stainless 1500-I- steel AISI- 71037002 HEF3- Stainless 2000-I- steel AISI-...
  • Page 15: Scheme Of The Connections (Standard)

    HEF3 Series MANUAL 5.2. Scheme of the connections (Standard) Connection to the water supply (connection to external water at between 1 and 6 bar) Connection to drain to the water trap...
  • Page 16: Connection/ Regulation Of The Water Supply

    HEF3 Series MANUAL 5.2.1. Connection/ Regulation of the water supply Connect the water supply (A) to the ½” male BSP float valve (6) using suitable piping with a cut-off valve (1). We recommend the installation of a 0.5 mm light filter (2). In the HEF3 Series, when the feed water temperature is below the dew point of the air flow after the humidifying panel, it is recommended to insulate the collector and pipe to prevent possible condensation.
  • Page 17: Connecting The Drain To The Water Trap

    HEF3 Series MANUAL 5.2.2. Connecting the drain to the water trap DRAINING CONNECTIONS Connect the 1 1/2” outlet (BSP Female) of the drain (3) to the drainage network (B) without a shut- off valve. • The connection of the water outlet to the drainage must include a water trap high enough (2H) to exceed the pressure in the system, so the water tank can be completely emptied, for hygiene reasons.
  • Page 18: Setting In The Irrigation Valve In The Evaporative Cassette

    HEF3 Series MANUAL 5.2.3. Setting in the irrigation valve in the evaporative cassette • Water flow for the cassette (QRt) ≥ 0.3 l/min The adjustment is done with a flat Adjust the irrigation valve of the evaporative cassette so HIS screwdriver.
  • Page 19 HEF3 Series MANUAL • (QRt) < 0.3 l/min Water flow for the cassette Adjust the evaporation cassette water valve so his surface appears uniformly wet. It is necessary to ensure the irrigation of the panel has Flow regulation is by adjusting the black nut, excess water falling into the water tank.
  • Page 20: Optional Hef3 Series Elements

    HEF3 Series MANUAL 6. OPTIONAL HEF3 SERIES ELEMENTS 6.1. Connecting the NC solenoid valve IP55 water supply 24 VDC, 24VAC or 230VAC Coil 24 VAC/DC Connector 24 VAC/DC Water supply fill solenoid valve NC, ¾” G in brass (L1+N+T) Coil 230 VAC Connector 230 VAC (L1+N+T) L1/N L1/N...
  • Page 21: Water Quality, Air Quality And Maintenance Conditions

    HEF3 Series MANUAL 7. WATER QUALITY, AIR QUALITY AND MAINTENANCE CONDITIONS Optimal water quality, air quality and maintenance conditions. Water quality conditions: 1. Conductivity: Conductivity: 60-350 µS/cm, inclusive. *) 2. Total hardness: (as CaCO3) Total hardness 20-100 mg/l, inclusive. 3. Ionic silica: (Si02) < 30 mg/l 4.
  • Page 22 Failure to provide this information could lead to different parts of the equipment being damaged. A table of required chloride (Cl-) values for each type of water is attached. Damage caused by chlorine corrosion is not covered by the FISAIR warranty policy: Chlorides Drinking water...
  • Page 23 HEF3 Series MANUAL Nº DESIGNACIÓN VALOR ESTÁNDAR Common bacteria Colonisation number per 100 or less than 1 mL Escherichia Coli Not detected ≤ 0.003 mg/l (volume of Cadmium) Cadmium and compounds ≤ 0.0005 mg/l (volume of Mercury) Mercury and compounds ≤...
  • Page 24 HEF3 Series MANUAL Nº NAME STANDARD VALUE Calcium, Magnesium (hardness) 300 mg/l or less Active surface anionic agent 0.2 mg/l or less (4S,4aS,8aR)-4,8a- dimethyloctahydronaphthalen-4a(2H)-ol (or 0.00001 mg/l or less Geosmin) 1,2,7,7-Tetramethylbicyclo[2,2,1]-Heptane-2- 0.00001 mg/l or less ol (or 2-Methylisobolneol) Nonionic surfactant 0.02 mg/l or less ≤...
  • Page 25: Start Up Recomendations

    (application in Spanish) https://fisair.com/service/start-ups/ (application in English) The operation of the FISAIR HEF3 Series evaporative humidifier is mainly determined by the irrigation of the evaporative panels. The humidifier will work as such whenever there is a current of air passing through it and the water pump irrigates the panels.
  • Page 26: Maintenance

    HEF3 Series MANUAL 9. MAINTENANCE IMPORTANT Request maintenance of your units by contacting: sat@fisair.com service@fisair.com https://fisair.com/es/servicio/mantenimientos/ (application in Spanish) https://fisair.com/service/maintenance/ (application in English) GENERALITIES Humidifier components are very easy to maintain, because the only active parts are the irrigation pump and the float valve. The following elements require some kind of maintenance: •...
  • Page 27: Cleaning And Desinfection

    HEF3 Series MANUAL 10. CLEANING AND DESINFECTION 10.1. Evaporative humidification: a natural method that does not carry bacteria The operational features of evaporative humidifiers are based on the natural effect of the water evaporation when an air flow goes through/by a wet surface (is the same natural principle that occurs when water evaporates from waterfalls, rivers, lakes, seas...).
  • Page 28: Cleaning

    HEF3 Series MANUAL 10.2. Cleaning 10.2.1. General An inspection, emptying and cleaning plan must be established for the HEF3 Series depending on the treated air and feed water quality. Evaporation humidifiers should be cleaned regularly to prevent contamination. All the component surfaces (panel, pipes and especially the water deposit) must be disinfected with an appropriate solution.
  • Page 29 [Remark 2: Only use for high efficiency inorganic panel FISAIR]: If you have an inorganic panel or an organic panel with glued slats, this cleaning process cannot be carried out. For these cases use a weak acid solution such as citric acid or acetic acid dissolved in aqueous solvent.
  • Page 30 HEF3 Series MANUAL 2. Insert the cassette completely into the container with the solution. Leave it to stand for at least an hour. 3. Remove the panel from the container and wash it with the sprayed water hose.
  • Page 31 HEF3 Series MANUAL If the foam is not completely removed, reinsert the cassette into a container with clean running water. Once the foam has completely disappeared, remove the cassette from the container and wash it again with the sprayed water hose. Allow the cassette to dry completely in the open air for as long as necessary.
  • Page 32: Desinfection

    HEF3 Series MANUAL 5. It is not normally necessary to repeat the process. 10.2.3.B. Cleaning with vinegar If the tank is full, add industrial vinegar directly to the water in the tank at a ratio of 0.016 liters of industrial vinegar per 1 liter of water. Depending on the volume of the total volume of the basins, add the corresponding amount of industrial vinegar proportionally 10.2.3.C.
  • Page 33 HEF3 Series MANUAL based disinfectants are used, they should not be mixed with an acid solution due to the potential formation of toxic chlorine gas. Remark: The manufacturer’s safety steps for the disinfectant solution should be followed. The inorganic high efficiency panel the HEF3 Series cassettes includes agents, such as silver ions, that inhibit the growth of bacteria and fungi.
  • Page 34: Disassembly Structure

    HEF3 Series MANUAL 11. DISASSEMBLY STRUCTURE 11.1. Changing the evaporative cassettes To service the evaporative cassettes it is first necessary to shut off the water flow from the valve so that the drain and supply lines can be removed. Ilustration 1. Side view of HEF3...
  • Page 35: Ilustration 2. Side View Of Hef3

    HEF3 Series MANUAL Unscrew the feed pipe attached to the three-piece link on the side of the equipment. Ilustration 2. Side view of HEF3...
  • Page 36: Ilustration 3. Disassembly Of The Side Cover

    HEF3 Series MANUAL Dismantle the side cover by removing the M6 hexagonal screws that join this element to the complete structure of the unit. The result is also shown below: Ilustration 3. Disassembly of the side cover...
  • Page 37: Ilustration 4. Disassembled Casssette

    HEF3 Series MANUAL The inside of the unit, after removing the side cover, reveals the evaporative cassette for replacement. It is not necessary to disassemble the three-piece linkage above it to carry out the replacement, as shown in the following picture. Ilustration 4.
  • Page 38: Machine Conformity Declaration

    HEF3 Series MANUAL 12. MACHINE CONFORMITY DECLARATION HEF3...
  • Page 39: Warranty

    HEF3 Series MANUAL 13. WARRANTY...
  • Page 40 HEF3 Series MANUAL...

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