A to Z
26 terms explained
Air changes per hour (ACH)
How many times in an hour the air in a room is replaced. ACH = airflow in m³/h ÷ room volume in m³. Used to size exhaust fans and ventilation. Read more
Axial fan
A propeller-type fan that moves air along its shaft. Axial fans move large volumes at low pressure and are used in duct coolers and exhaust fans. Read more
BLDC motor
Brushless DC motor: an electronically controlled motor that is efficient at part speed and gives smooth speed control. Used in the E-cool Blower Cooler. Read more
Blower cooler
An evaporative cooler that uses a centrifugal blower instead of an axial fan, giving higher air pressure for ducting and lower noise. Read more
Cellulose cooling pad
A honeycomb block of resin-treated corrugated kraft paper. Water runs down it and air passing through is cooled by evaporation. Also called a honeycomb cooling pad. Read more
Centrifugal blower
A drum-shaped fan wheel that throws air outward into a casing. It builds more pressure than an axial fan, so it suits longer ducts. Read more
CFM
Cubic feet per minute, a unit of airflow. 1 CFM is about 1.699 CMH. Read more
CMH
Cubic metres per hour (m³/h), the usual unit of airflow for industrial coolers and exhaust fans in India. 1 CMH is about 0.589 CFM. Read more
Direct drive
A fan whose blades are mounted on the motor shaft, with no belt or pulley. Less maintenance than belt drive. Read more
Drop hammer exhaust fan
A box exhaust fan whose shutter is opened by a weighted arm when the fan runs and falls shut when it stops, keeping out rain, dust and birds. Read more
Duct cooler (ducting cooler)
An industrial evaporative cooler mounted outside a building that delivers cooled air inside through ducts. E-cool models run from 18,000 to 50,000 CMH. Read more
Evaporative cooling
Cooling air by evaporating water into it. The heat needed to evaporate the water comes out of the air, lowering its temperature. Read more
Face velocity
The speed of air passing through the face of a cooling pad. Typical design values are about 1.25 m/s for 100 mm pads and 1.8 m/s for 150 mm pads. Read more
Fan and pad system
A cooling system for greenhouses and poultry houses: exhaust fans on one wall pull air through wet cooling pads on the opposite wall. Read more
Flute
One of the corrugated channels in a cooling pad. E-cool pads come with 5, 6 or 7 mm flutes. Read more
Garden cooler
A large outdoor air cooler on wheels with a big tank and a top multi-way outlet, for lawns, events and open sheds. Read more
HSN code
The Harmonised System of Nomenclature code used on GST invoices. E-Cool invoices industrial coolers under 8414 59 30 and cellulose cooling pads under 4823 90 90. Read more
HVLS fan
High volume, low speed fan: a ceiling fan 10 to 24 ft across that turns slowly and moves a very large volume of air over a wide floor area. Read more
Mobile floor fan
A portable industrial air circulator on wheels. The E-cool MB1 is a 48 inch fan moving 38,000 m³/h on 750 W. Read more
Phase preventer
A protective device that cuts power to a three-phase motor when a phase fails or the supply goes out of balance, preventing burn-out. Read more
PMSM
Permanent magnet synchronous motor: an efficient direct-drive motor used in modern HVLS fans and the MB1 floor fan, with no gearbox. Read more
SKD
Semi knocked down: products shipped partly disassembled to fit more units in a container, for assembly at the destination. Read more
SS-304
A grade of stainless steel that resists rust. Used for E-cool exhaust fan blades and the stainless steel duct cooler body. Read more
Tunnel ventilation
Ventilating a poultry house by pulling air along its full length with exhaust fans at one end, usually through cooling pads at the other. Read more
VFD
Variable frequency drive: an electronic controller that changes motor speed smoothly, saving power and noise when full airflow is not needed. Read more
7090 and 5090 pads
Two grades of cellulose cooling pad that differ in their flute angles. E-Cool makes both. Read more
Need help choosing?
Tell us the space and what you need to cool. Our sales team will suggest the right models and send a quotation.