Daikin EWAH330TZ-SSB1 [82/102] Options technical data

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OPTIONS (TECHNICAL DATA)

NOTE:

The above curves refer to the total static pressure of the pumps (don’t taking into account the pressure drops in

the heat exchanger, units piping and filters).

How to calculate the overall chiller water side pressure drops (to calculate available static pressure)

In order to calculate the overall pressure drops introduced by the chiller in an installation the following points

have to be considered:

Overall chiller pressure drops = evaporator [kPa] + Filter pressure drop [kPa]

Select the chiller with CSS tool, you get easily the design water flow rate and the corresponding ‘evaporator

pressure drops’ value (in CSS tool kPa figures are referred to evaporator only).

Refer to “Specification” chapter or unit dimensional drawing to check the water connection diameters (equal to

filters size).

Considering the design flow rate and water filter size and piping diameter, from graph “Filter pressure drops"

get the corresponding kPa value.

By adding the values at point “a” and “c”, ‘Overall chiller pressure drops’ figure is got.

In case where the filter provided from factory is replaced with other type of filters the above curves are not

applicable.

The installation of the filter for single and dual circuit units is mandatory.

The pressure drop value showed in CSS (Chiller Selection Software) are referred to chiller’s evaporator only.

For EWAH~TZB factory provides the water filter as standard option only for single circuit unit.

The filters is shipped loose.

Note: when using mixture of water and glycol please contact factory as above specification could change.