Vents OKF, User Manual, Page: 4 / 12

4
The cooler casing is made of polymer coated steel, the tubular manifold is made of copper and the heat
exchanger surface is made of aluminium plates. The cooler casing has a dismountable design that provides
easy access to the heat exchanger and the droplet separator. The coolers are equipped with 3-raw coils.
The internal operating medium of the OKF cooler is a direct evaporation refrigerant, i.e. R123, R134a,
R152a, R404a, R407c, R410a, R507, R12, R22.
The internal operating medium of the OKW cooler is water or antifreeze.
In case of need to change the service side turn the cooling coils by 180°, fig. 1. The economy modification
of the product does not have this option.
DESIGN AND OPERATING LOGIC
Fig. 1
Fig. 2
Changing of service side
To attain the most efficient cooling capacity connect the cooler on counter-flow basis, fig. 2.
Counter-flow connection Direct-flow connection
Inlet Outlet Outlet Inlet