Data Aire DAFC-11 Manual de instalación descargar pdf (Pagina 23)

5.0 GLYCOL SYSTEMS

5.1 Glycol Concentration

The system must be ﬁ lled with water and the appropriate amount of ethylene or propylene glycol

to protect against winter freezing. To achieve the approximate glycol concentration, it is necessary

to know the total system volume. The total system volume consists of the ﬂ uid cooler volume, the

evaporator unit volume and the volume of the inter-connecting piping.

The following tables can be used for arriving at an approximate system volume. After installation,

the glycol percentage should be checked. The glycol percentage should be checked at regular in-

tervals to ensure against freeze protection.

5.1.1 Internal (Fluid) Volume – Downﬂ ow Units

Volume (gallons) - no Volume (gallons) – with

Evaporator Model Energy Saver Coil Energy Saver Coil

DT*D-02 2.0 3.5

DT*D-03 2.5 3.5

DT*D-04 2.5 5.0

DT*D-05 2.5 5.0

DT*D-08 4.5 N/A

DT*D-10 5.0 N/A

DT*D-13 5.5 N/A

*W = Water Cooled G = Glycol Cooled

5.1.2 Internal (Fluid) Volume – Upﬂ ow Units

Volume (gallons) - no Volume (gallons) – with

Evaporator Model Energy Saver Coil Energy Saver Coil

DT*U-02 1.6 3.0

DT*U-03 1.6 3.0

DT*U-04 2.0 4.5

DT*U-05 2.0 4.5

DT*U-08 4.5 N/A

DT*U-10 5.0 N/A

DT*U-13 5.5 N/A

*W = Water Cooled G = Glycol Cooled

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Data Aire DAFC-11 Manual de instalación Pagina 23