Technical information

On design glycol concentration, apply the capacity correcting factors x 1.015 and power x 1.005 (see
Correcting factors for other glycol concentrations, see on page 18 ).
Applying these factors to the selection: YLCA ‑120
Capacity = 76.8 x 0.987 x 0.973 x 1.015 = 74.9 kW
Comp. power = 28.8 x 0.995 x 1.020 x 1.005 = 29.4 kW
For the specified glycol concentration and a ‑4C output temperature, Figure 3 shows a 0.248 glycol factor.
Thus, the flow can be determined with the formula appearing in Selection guide (YLCA/YLHA), see on
page 10 .
74.9 [kW] =
(1 ‑ (-4)) x Flow [l / s]
0,248
Flow =
74.9 x 0.248
= 3.71 [l / s] or 13374 [l / h]
5
This covers the Limits of Use.
The evaporating unit pressure drop can be determined by taking the water pressure drop value for a
YLCA 120 unit and multiplying it by the correcting factor (see Glycol concentration and correcting ta‐
bles, see on page 16 ) for a 30% concentration and an average temperature of ‑1.5°C, that is to say:
-1.5 °C=
1 + (-4)
2
16 kPa x 1.22 = 19.5 kPa.
1
Technical Information
1.5 Selection guide (YLCA/YLHA)
14