type UTA - Western Airconditioning BV
type UTA - Western Airconditioning BV
type UTA - Western Airconditioning BV
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15<br />
Technical information manual <strong>UTA</strong>-ECHOS<br />
REF. <strong>UTA</strong>-ECHOS-/<strong>UTA</strong>_ECHOS_2011.DOC<br />
CORRECTION FACTORS<br />
The above indicated bends of the correction factor of the total, sensitive and load loss yield depending on the variation of the air<br />
capacity, refer only to the UTW units, at the following functioning conditions:<br />
• Input air temp.: 26 °C BS 19 °C BU<br />
• Input/output water temp.: 7/12 °C<br />
EXAMPLE:<br />
Let us suppose to want to obtain the total, sensitive cooling yield and load loss of unit UTW 36 with an air capacity of 0.455 m3/s.<br />
From the table on page 4 the following values can be read: total yield: 10.4 kW, sensitive yield 7.6 kW, load loss 18 kPa.<br />
The nominal air capacity: 0.542 m3/s. Requested capacity value expressed in % respect to the nominal capacity<br />
value: (0.455/0.542) x 100 = 84 %. From the above indicated bends the values of the corrective coefficients<br />
corresponding to the new capacity value are obtained:<br />
84% ~> pc tot yield = 0.90; pc sen yield = 0.88<br />
~> pc load loss = 0.82<br />
The new values will be:<br />
total yield = 10.4 x 0.90 = 9.4 kW<br />
sensitive yield = 7.6 x 0.88 = 6.7 kW<br />
load loss = 18 x 0.82 = 14.8 kPa<br />
___________________________________________________________________________________________<br />
<strong>Western</strong> <strong>Airconditioning</strong> B.V. Hoevelaken Tel. (033) 247 78 00 E-mail: sales@western.nl www.western.nl
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