Western Zeta Rev HE FC, Принцип работы и управление

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Installations that require the use of treated coils
If the unit has to be installed in an environment with a particularly aggressive atmosphere, coils with special treatments
are available as options.
• e-coated microchannel coils
• coils with anti-corrosion treatment (accessory available only for units with Cu/Al coil)
A description of the individual accessories is available in the “Description of accessories” section.
The type of coil treatment should be chosen with regard to the environment in which the unit is to be installed, through
observation of other structures and machinery with exposed metal surfaces present in the destination environment.
The cross observation criterion is the most valid method of selection currently available without having to carry out
preliminary tests or measurements with instruments. The identified reference environments are:
• coastal/marine
• industrial
• urban with a high housing density
• rural
Please note that in cases where different conditions co-exist, even for short periods, the choice must be suitable for
preserving the exchanger in the harsher environmental conditions and not in conditions between the worst and best
situation.
Particular attention must be given in cases where an environment that is not particularly aggressive becomes aggressive
as a consequence of a concomitant cause, for example, the presence of a flue outlet or an extraction fan.
We strongly suggest choosing one of the treatment options if at least one of the points listed below is verified:
• there are obvious signs of corrosion of the exposed metal surfaces in the installation area
• the prevailing winds come from the sea towards the unit
• the environment is industrial with a significant concentration of pollutants
• the environment is urban with a high population density
• the environment is rural with the presence of organic discharges and effluents
In particular, for installations near the coast, the following instructions apply:
for installations between 1 and 20 km from the coast of reversible units or units with Cu/Al coils, we strongly recom-
mend using the accessory "Coil treated with anti-corrosion paints"
for distances within a kilometre of the coast, we strongly recommend using the accessory "Coil treated with anti-corro-
sion paints" for all units.
To protect the exchangers from corrosion and ensure optimal operation of the unit, we advise following the recommen-
dations given in the user, installation and maintenance manual for cleaning the coils.