





Cool Breeze QAD230
KEY FEATURES :
• direct axial flow fan system
• pre-start wash of pads
• after use auto rinse cycle
• end of cycle drain
• adjustable water change
• gravity drain valve
• exhaust mode
• 11 litre sump
• durable polymer construction
• powerflow fan with ’golf ball’ dimples
• magna-sensor auto water level
• water management system
FACTORS DETERMINING PERFORMANCE :
Fan Motor
Manufactured by Techo Australia. The motor features quality Japanese bearings with ultra high temperature grease with a protected bearing life in excess of 30,000 hours. The overall motor service life is projected to be in excess of 10 years, based on average annual usage. Mounting the motor after the fan blade ensures the highest air velocity over the motor. This maximises cooling and prevents moisture.
Fan Duty
The QAD230 features a unique powerflow fan with “golf ball” dimpled blades which increases fan efficiency and air flow. At typical velocities of 1.7m/sec, the pressure drop through the Cool Breeze cellulose pads is 20Pa. The QAD230 is the only evaporative cooler available in the UK with published BSRIA test results. The fan curve shows a flat rate of 0Pa with all pads in place.
Cellulose Pads
The QAD230 utilises a long-life, self supporting cellulose pad, impregnated with anti-rot salts, ridgifying saturates and wetting agents, with unique alternating, transverse flutes at different angles. The design creates highly turbulent mixing between cooling water and air, enhancing evaporative efficiency and thus cooling results. Additionally the pads filter out particles as small as 10 microns, including most common allergens. Tests conducted by US Air Filter Test Laboratories in accordance with ASHRAE Standard 52-76 (dust spot efficiency test) found the largest percentage of upstream particles were less than 0.5 microns in size.
System Control
The new Cool Breeze control system gives industry-leading system management.
Features of the new controller include:
• operator friendly
• fault diagnosis (water, pump etc)
• optional remote shutdown via BMS
• optional remote shutdown via timer
• optional humidity control
Water Management
Electronic regulation of water level by measurement of ‘magnetic hall effect’ gives a consistent water level accurate to within 1mm. No adjustment required, no rubber washers to wear or probes to corrode. The computer controlled water management system with patented Magna Sensor drain valve is vastly superior in performance, reliability and maintenance-free long life. It uses the simple counterweight principle of a tank of water and leverage to open and close the valve. There is virtually nothing to break or wear. The Magna Sensor valve uses a magnetic field principle to determine water level. It never needs adjusting. No Magna Sensor installed by Cool Breeze has ever failed.
Construction Materials
The QAD230 housing, internal mouldings and sump are made from advanced BSF Luran-S Polymer material which is super strong, impact
resistant, UV stable and totally corrosion free.

