Dimplex DAC12AC Especificaciones descargar pdf (Pagina 8)

Dimplex Thermal Solutions 1800-YOU-KOOL

PROPYLENE GLYCOL:

Propylene glycol maintains generally the same

freeze protection, corrosion and algae prevention

as ethylene glycol, but has a lower level of toxicity.

This type of glycol is more readily disposable than

ethylene and safer to handle. Propylene glycol is

commonly used in the food industry and in

applications where the user may come in frequent

contact with the fluid.

Dimplex Thermal Solutions recommends the

use of K-Kool Glycols in its units.

WATER:

When selecting the water to mix with the glycol,

use a good quality, filtered source that meets the

requirements of the process machine

manufacturer. Dimplex Thermal Solutions

recommends the use of distilled or reverse-

osmosis water for the water / glycol mixture.

De-ionized water can be used to fill the chiller

process initially, but should not be maintained to a

de-ionized state thereafter. Unless the chiller has

been ordered and designed for the use of water

that is continually de-ionized, the fluid will actually

attack certain metals within the chiller and cause

damage to some components. Damage caused by

the use of maintained de-ionized water in a chiller

not designed for it will not be covered under

warranty. Consult DTS before continuously using

de-ionized water to check for compatibility.

The use of regular tap water is not recommended.

Water from the “city” or “ground” contains

deposits and additives which can decrease

component life and increase maintenance time.

GLYCOL / WATER MIXTURES:

The location of the chiller and environmental

concerns must be taken into account when

selecting the proper mixture of glycol and water

for the chiller process. A process which is located

completely indoors and has no chance of freezing

will require less glycol than a system located

outdoors where low temperatures can cause the

fluid to freeze and piping to burst. Applications

that have a low operating temperature (below

30°F) should use a glycol mixture equivalent to an

outdoor system.

After selecting the proper glycol and water types,

use the following chart to determine the

recommended mixture depending on application

and location of the process. The glycol percentage

figures in the chart below will apply to any brand

of ethylene or propylene glycol.

APPLICATION

GLYCOL

WATER

FREEZE

PROTECTION*

BURST

PROTECTION*

Indoor chiller and process

5°F / -15°C

-20°F / -29°C

Outdoor chiller / Low fluid

temperature system (<30°F)

-35°F / -37°C

-60°F / -60°C

* Figures based on performance of DTS “K-Kool-E” brand of Ethylene Glycol.

FLUID MAINTENANCE / FILTRATION:

Maintaining clean process water and the proper glycol content will extend the life of the system and

reduce costly down-time. If the chiller was not equipped with a fluid filter from the factory, it is

highly recommended to install some sort of filtering system to remove unwanted dirt and debris.

Refer to the Chiller Maintenance section of the manual for water and filter maintenance information.

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Dimplex DAC12AC Especificaciones Pagina 8

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