RACA Journal February 2021 | Page 53

www . hvacronline . co . za RACA Journal I February 2021 51
Products

FANS FOR OIL-COOLED APPLICATIONS

ebm-papst has developed special fans for application in oil cooled transformers that satisfy rigorous requirements for service life and salt spray resistance .
• Suitable for deployment in high salt content coastal areas .
• Switching off individual fans can lead to the oil developing ‘ hot spots ’. Thanks to EC technology , it is possible to use the fans in partial-load operation . The consequence is a more even flow through the radiator .
• Motor does not heat up dramatically , which extends the fan ' s service life . Partial-load operation not only saves energy and lowers operating costs , but also results in less waste heat .
• The commutation and stator design also ensure extremely smooth operation , which makes them suitable for areas of application where the noise protection regulations must be obeyed .
• Fans work with power supplies between 200-240 V and 380-480 V , and satisfy all the relevant standards ( CE , UL , CSA , EAC , CCC ) as well as the degree of protection IP55 requirements .
• The fans come in sizes 500mm to 1 250mm with air performance of up to 13m ³/ s .

COOL BREEZE L240 REVERSIBLE COOLER

Cool Breeze South Africa is proud to announce the arrival of the all new and improved L240 - 2 speed cooler with exhaust mode and new control system !
All new L240 coolers now have exhaust function to enable extraction as an added user option . The electronics have been redesigned to feature a new controller face and LED display . Main PC board electronics have also been redesigned to allow for more stable operation in areas with mains power fluctuations .
Auto restart is now possible with this L240 R cooler where the controller can be set to auto restart to previous user setting during mains power failures .
In addition , new control systems ( PC boards and controllers ) can be retrofitted to any older L240 2 speed non-reversible coolers to give updated controller interface as well as improved electronics and cooler control .
Pricing of this cooler remains low and affordable as a solid Cool Breeze alternative to other cheaper coolers on the market .
For more information , call + 27 ( 0 ) 11 887 8985 .
For more information , contact + 27 ( 0 ) 11 794 3434

SMART MANIFOLD

Mastercool , available from Metraclark , introduces the new Spartan series smart manifold with Bluetooth wireless technology .
This smart manifold is equipped with a 4.3 ” colour touchscreen LCD , allowing the user to navigate through all of the screens and options with a quick slide of their finger . Now with a built-in premium vacuum sensor and an accuracy down to 1 micron , there is no need for additional equipment to properly diagnose and service your A / C system .
Offered in 2-way and 4-way options , this manifold will display pressure , vacuum , temperature , and will automatically calculate your superheat and subcool . Both models include data logging and will offer additional features such as leak test timers and alarms . In conjunction with this manifold will be the ability to download our free Mastercool Connect App , which will provide full mobility as activity can be easily viewed on all compatible hand-held devices .
This will allow for endless amounts of data collection and diagnostics at your fingertips .
For more information , contact + 27 ( 0 ) 11 620 0300 .

www . hvacronline . co . za RACA Journal I February 2021 51