AIR-COOLED SCROLL CHILLERS WITH GREENSPEED INTELLIGENCE 30RBM/30RBP 160-520
Novation® Aluminium Micro Channel Heat Exchanger
The AquaSnap also communicates with other building management systems via optional communication gateways. A connection terminal allows remote control of the AquaSnap by wired cable: - Start/stop: Opening of this contact will shut down the unit - Dual set-point: Closing of this contact activates a second set-point (example: unoccupied mode). - Demand limit: Closing of this contact limits the maximum chiller capacity to a predeﬁned value. - Operation indication: This volt-free contact indicates that the chiller is operating (cooling load). - Alarm indication: This volt-free contact indicates the presence of a major fault that has led to the shutdown of one or several refrigerant circuits.
The Novation® features the latest generation of Carrier Micro Channel Heat Exchanger (MCHE) with new extra resistant aluminum alloy. Already utilised in the automobile and aeronautical industries for many years, the MCHE is entirely made of aluminum. This one-piece concept signiﬁcantly increases its corrosion resistance by eliminating the galvanic currents that are created when two different metals (copper and aluminum) come into contact in traditional heat exchangers. Unlike traditional heat exchangers the MCHE can be used in moderate marine and urban environments. From an energy efﬁciency point-of-view the MCHE is approximately 10% more efﬁcient than a traditional coil and allows a 40% reduction in the amount of refrigerant used in the chiller. The low thickness of the MCHE reduces air pressure losses by 50% and makes it less susceptible to fouling (e.g. by sand) than a traditional coil. Cleaning of the MCHE is very fast using a high-pressure washer.