Bosch's PAD auxiliary water circulation pumps feature 12-volt electronically commutated "brushless" drive motors and are designed to provide outstanding efficiency, extremely quiet operation, and long service life. The pump's stator and electronics are mechanically fully-separated from the rotor in the dry motor housing. The rotor, as part of the pump wheel, is seated in the separate pump housing. The non-contact torque transmission serves to ensure that the coolant does not come into contact with the electronics, throughout the pump's entire service life.
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