ASHRAE 170 is just the baseline for the fight against hospital acquired infections (HAIs). The ongoing human and financial tolls taken by these infections point to the need for engineers and facilities to raise their IAQ game wherever possible. Move beyond the minimum and get into the what, where, and how of HEPA filtration, ultraviolet technology, and catalytic air cleaners.
Bosch has introduced a new lineup of 9- and 14-gallon vacuums. The VAC090S and VAC090A 9-gallon vacuums and VAC140S and VAC140A 14-gallon vacuums are designed to increase dust extraction performance and decrease the loss of suction by offering two options of on-board filter cleaning; semi-automatic and automatic. These features are especially important in applications that require premium dust extraction such as tuckpointing, concrete surfacing, concrete drilling, cutting and chipping concrete, and collecting a diversity of dust particles in stationary workshops.
Retrieving every last bit of performance from the system while stopping short of the surge line is no small feat. Dig into sizing, tower selection, chilled water loads and stability, and condenser water management to leave no efficiency stone unturned. Read more in April issue