HVAC – 2004-10-10
Dust collector stays on-line
Model BDC dust collector is a self-cleaning, continuous-duty system available in eight sizes to fit a wide variety of requirements. Pulse-jet cleaning pulses-off captured dust and cleans the filter while the system remains online. With minimal pressure drop, the units multiple filter options maintain 99.99+% filtration efficiency.
United Air Specialists, Inc. , uasinc.com , Write 332 on PE card
KH Series fans feature a 100% speed-controlled, external rotor motor and backward curved impellers made of aluminum. Impeller diameters range from 9.84 to 27.95 in. The closed motor offers Class IP 44 protection against humidity, with maintenance-free sealed ball bearings. Air volume is adjustable using pressure and temperature controls.
Rosenberg USA , rosenbergusa.com , Write 333 on PE card
Small heat exchangers
Brazepak heat exchangers are designed for applications requiring high performance in a small size. A special brazing process is used to bond 316 stainless steel plates, which feature a corrugated design for maximum turbulation and high heat transfer in a small surface area. No bulky pressure-retaining parts are needed.
ITT Standard , ittstandard.com , Write 334 on PE card
High-efficiency air filters
V-bank Durafil air filters combine energy efficiency and long service life with plastic construction to reduce weight and resist corrosion. The filter is available in four high efficiencies: MERV 11, 13, 14, and 16 based on ASHRAE 52.2 (60-65%, 80-85%, 90-95%, and 99% based on ASHRAE 52.1 Dust Spot).
Camfil Farr , camfilfarr.com , Write 335 on PE card
A complete indoor air quality (IAQ) monitoring solution combines HOBO data loggers with a Telaire 7001 carbon dioxide (CO 2 ) monitor. It can measure and record CO 2 along with temperature and relative humidity in a broad range of IAQ applications. It measures and outputs CO 2 levels over the range of 0 to 2500 ppm with a 10-ppm resolution.
Onset Computer Corp. , onsetcomp.com , Write 336 on PE card
Cool loading docks
Dock Door Heat Relief System cools loading docks by directly evaporating fine water droplets into the environment, causing a reduction in ambient temperature and stabilizing relative humidity. The system uses pumps and controls with ventilators to produce cooling airflow. Temperatures de-crease 8—14 F, which feels like a 10—30 F drop to employees.
Cool Breeze , coolbreezeofkeywast.com , Write 337 on PE card