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Translation from original instructions
5.4.2 Connections to the water chiller coils
The water chiller coil is fitted as standard with a two or three-way modulating valve, with an electric three-point or 0-10V
servo-control (depending on the version or configuration).
For the hydraulic connections (whether the coil is the main or the additional one) observe the following guidelines:
- use copper or steel pipes;
-
adequately insulate the pipes;
-
install shut-off valves in/out of the unit;
- install a thermometer and a pressure gauge at the input and output of the unit.
The diameters and types of connection required are indicated in the dimensional drawings.
Should the fluid contained in the hydraulic system be able to fall to near or below zero Celsius, add an appro
-
priate percentage of antifreeze.
5.4.3 Connection to the condensate drain
All units are equipped with a condensate drip tray underneath the coil.
A rubber siphon is connected to the condensate drip tray which is joined to the base in all the units except for the vertical
upward air flow water chillers in sizes "S", "M", "L" and when there is a separate fan section.
The connection to the condensation drip tray with relative syphon must be carried out under the unit by the installer in all
vertical upward air flow water chillers in sizes "S", "M", "L" and when there is a separate fan section.
Fig. 9 Condensate drain
Connector for the condensate drip tray in "SXS", "XS", "S", "M" and "L" sizes is envisaged for a rubber pipe with an outer
diameter of 20 mm. The one for "XL" and "XXL" sizes for a rubber pipe with an outer diameter of 25 mm.
In all cases it is better to arrange a slight slope of the discharge pipe to help the water flow.
