AC70 is the innovative Alfa Laval brazed heat exchanger that’s
specifically developed to work in air conditioning, refrigeration,
and heat pump applications.
AC70 is a single refrigerant circuit unit developed for chillers in
the 10-80 kW range and heat pumps in the 5-40 kW range; it
is suitable to work as an evaporator, condenser, and economizer.
The innovation is related to the channel plate design and to
the patented distributor. Our laboratories verified the heat
exchanger, and it achieves the highest market performances
with HFC refrigerants such as R407, R404, R507, R134
(AC70 model), and R410A (ACH70 model) and with natural
refrigerants (CO2 - propane).
Traditionally, Alfa Laval concentrates extensively on reliability.
All the brazed heat exchangers that work in chillers and heat
pumps are subject to daily fatigue cycles during on/off operations.
Our mission is to supply reliable products that prevent
damage after a few cycle operations and to assure our customers
that the units will not create problems.
Alfa Laval worked extensively during the last 50 years to
design and develop reliable products and continues to invest
heavily in R&D. The AC70 has a patent and a unique integrated
distributor system pressed together with the plate to
assure the highest level of quality and performance reliability.
The unit is available with the major pressure vessel codes as
PED (Europe), UL (USA), and KHK (Japan).
Possible applications
- Evaporator or condenser in chiller and heat pumps
- Economizer in chiller and heat pumps
Prerequisites
To enable Alfa Laval’s representatives to create a quotation,
please ensure that they have these specifications:
– Flow rates or heat load required
– Inlet and outlet temperature
– Desired working pressure
– Maximum permitted brine pressure drop
– Connection types
– Brine and refrigerant type
General data
Design temperature -196°C / +150°C
AC70 design pressure 32 bar
ACH70 design pressure 45 bar
Volume per channel 0.095 dm?
Maximum flow rate (water side) 14 m?/h
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