fisair HEF7 Series Installation And Maintenance Manual

Adiabatic cooling system for air-condensed water chillers
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Installation and maintenance manual
HEF7
Adiabatic Cooling System for
Air-condensed Water Chillers
In compliance with European Union standards for machinery safety,
it is essential to read this manual in detail before installing units.

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Summary of Contents for fisair HEF7 Series

  • Page 1 Installation and maintenance manual HEF7 Adiabatic Cooling System for Air-condensed Water Chillers In compliance with European Union standards for machinery safety, it is essential to read this manual in detail before installing units.
  • Page 2 HEF7 Installation and maintenance manual...
  • Page 3: Table Of Contents

    Fisair Air humidity control Contents General description HEF7 nomenclature High efficiency HEF7 evaporative panel ORGANIC evaporative panel INORGANIC evaporative panel Unit components Operating principles Installation requirements Connections and regulation Recirculation pump electricity connection Level detector electricity connection Solenoid valve electricity connection...
  • Page 4: General Description

    HEF7 Installation and maintenance manual General description EVAPORATIVE HUMIDIFIER FISAIR evaporative humidifiers work in a similar way to OPERATING PRINCIPLE natural phenomena occurring in rivers, lakes and seas. All that is added to the air is pure water vapour. FISAIR evaporative humidifier units are designed to increase the water vapour content of the treated air, through the natural evaporation of water in its liquid phase.
  • Page 5: Hef7 Nomenclature

    Fisair Air humidity control HEF7 nomenclature HEF7 NOMENCLATURE H E F - 7 - 00 - 000 - 000 - N HUMIDIFIER QUANTITY EVAPORATIVE FISAIR SERIES Nº OF COVERED FANS FAN Ø CASSETTE THICKNESS (MM) PANEL MATERIAL (Organic) (Inorganic) PUMPING SYSTEM FOR HEF7...
  • Page 6: High Efficiency Hef7 Evaporative Panel

    HEF7 Installation and maintenance manual High efficiency HEF7 evaporative panel ORGANIC EVAPORATIVE PANEL • Maximum performance: Organic Media is designed to provide the largest possible air-to-water contact surface area (approximately 460 m2/m3). Such a large area enables optimal evaporative cooling and humidification from the evaporation.
  • Page 7: Inorganic Evaporative Panel

    Fisair Air humidity control INORGANIC EVAPORATIVE PANEL These panels are made of fibreglass with a special coating to enable a greater absorption capacity and ensure constant evaporative humidification and cooling, even at high air speeds. They are made of fireproof inorganic material.
  • Page 8: Unit Components

    HEF7 Installation and maintenance manual Unit components...
  • Page 9 Fisair Air humidity control The unit serial number and the dimensions of the cassette are required for evaporate cassette spare parts. L = Cassette length H = Cassette height E = Cassette thickness For further information on parts of systems, please contact the manufacturer.
  • Page 10: Operating Principles

    HEF7 Installation and maintenance manual Operating principles IRRIGATION PANEL Bleed-off Water supply Overflow Water tank Drainage Water Supply Constant Bleed-off Overflow Drainage Regulation Valves with Flow Meter (Irrigation) Regulation Valves with Flow Meter (Bleed-off) Filling Solenoid Valves Max/Min Level Detector Valves with Actuator (Drainage) Water Recirculation Pump...
  • Page 11: Installation Requirements

    Fisair Air humidity control Installation requirements OVERVIEW PLACEMENT AND SERVICING SPACE To ensure optimum performance and maintenance, Humidifiers are normally placed just before the coil and humidifiers must be placed on a level surface, with a drain, before the sensible exchange in the air cooling system.
  • Page 12: Connections And Regulation

    Connections and regulation OVERVIEW WATER CONNECTIONS FISAIR HEF7 evaporative humidifiers essentially work in • Connect the water network supply to the ½” filter in Y, and accordance with the irrigation of the evaporative panels. this to the solenoid supply valve.
  • Page 13: Recirculation Pump Electricity Connection

    Fisair Air humidity control Recirculation pump electricity connection Connect the electricity supply cable to the terminal box of the water irrigation pump using an appropriate connection (IP-55 or higher). The protection and operations of the pump electricity supply must be decided upon by the system project designer.
  • Page 14: Level Detector Electricity Connection

    HEF7 Installation and maintenance manual Level detector electricity connection The minimum level must be connected to protect the operation of the water recirculation pump. The maximum level must be connected to cut off the water supply by means of the filling solenoid valve. The diagrams below show how to make these connections: (Vmax = 110Vac) max.
  • Page 15: Solenoid Valve Electricity Connection

    Fisair Air humidity control Solenoid valve electricity connection The water supply NC solenoid valve of the tank is composed of the body of the valve, the coil and the connector. The coil and the connector are supplied for a 24Vac or 230Vac connection.
  • Page 16 Fisair Air humidity control MOTOR-ZONE VALVE Datos técnicos Operating voltage AC / Frequency AC 24 V ± 20 % / 50/60 Hz AC 24 V DC 24…48 V supply Operating voltage (DC) DC 24…48 V ±20 % (SELV/PELV) Power consumption AC: 5 VA / 3.5 W // DC: 3.5 W...
  • Page 17 HEF7 Installation and maintenance manual Electric Diagram connections GMA12..1 / GMA32..1 2 points control 2 points control AC 24 V AC 230 V Dimensions...
  • Page 18 Fisair Air humidity control Manual positioning Position Block Unblock Adjusting: A, B Auxiliary contacts Factory setting A= 5º B= 85º Cable labeling Cable Meaning Code Color Abbrev. System potential AC 24 V/DC 24…48 V Actuators AC 24 V DC 24…48 V...
  • Page 19: Setting The Valve Regulating Irrigation Flow

    Fisair Air humidity control Setting the valve regulating irrigation flow Set the valve for the irrigation of the panels to ensure uniform watering of the surface area of the panels. A value of around 1 litre/second for each square metre of irrigation surface is enough to exceed the water required for evaporation.
  • Page 20: Setting The Valve Regulating The Bleed-Off Flow

    HEF7 Installation and maintenance manual Setting the valve regulating the bleed-off flow Water evaporation is caused by a higher water vapour pressure in the evaporative panel than in the air moving across it. Because only the water evaporates, dissolved mineral salts remain in solution, and gradually increase in concentration, despite new water being added to compensate for the evaporation.
  • Page 21: Maintenance And Cleaning

    Fisair Air humidity control Maintenance and cleaning Humidifier components are very easy to maintain. The Maintenance following elements require maintenance: Element and Cleaning The irrigation pump: The most important thing is to IRRIGATION PUMP Monthly monitor to ensure dirt does not obstruct the suction- impulsion circuit, and electricity consumption is below the power rating on its plate.
  • Page 22 HEF7 Installation and maintenance manual As regards the disinfection of the remaining components, Once the cover has been removed, the central cassettes the same bleach disinfectant solution can be employed. are taken out so the cassettes each end can then be slid to The number and regularity of the application of the centre and also removed from the unit in the same way disinfection processes must be established by the person...
  • Page 23: Ce Declaration Of Conformity

    Fisair Air humidity control CE Declaration of Conformity Technical Direction Department Abteilung von der technischen Leitung Departamento de Dirección Técnica Département de Direction Technique Uranio, 20, Pol. Ind. Aimayr 28330 S. Martín de la Vega MADRID (SPAIN) Tel. (34) 916921514 Fax (34) 91691645 6 info@fisair.com www.fisair.com...
  • Page 24: Fisair S.l. Guarantee Policy

    2 Years of Limited Guarantee FISAIR provides clients with the guarantee that its product will not suffer material damage or damage to parts for a period of 2 years from installation, or twenty seven months from the product dispatch date, whichever is earlier.
  • Page 25 Guarantee Servicing Coverage In the event that any FISAIR product requires after-sales technical work so it can once again be used for the purpose it was originally designed, FISAIR will authorize the person/s responsible for this operation. These technicians must be qualified, and have sufficient knowledge to service FISAIR units.
  • Page 26 HEF7 Installation and maintenance manual Uranio, 20, Pol. Ind. Aimayr 28330 S. Martín de la Vega MADRID (SPAIN) info@fisair.com www.fisair.com...

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