5 | Operation
User reference guide
42
EWAA004~008D2 + EWYA004~008D2
Packaged air-cooled water chillers
and packaged air to water heat pumps
4P688016-1 – 2022.04
Weather-dependent curve when offset is selected:
Item Description
a WD curve before changes.
b WD curve after changes (as example):
▪ When slope is changed, the new preferred temperature at X1 is
unequally higher than the preferred temperature at X2.
▪ When offset is changed, the new preferred temperature at X1 is
equally higher as the preferred temperature at X2.
c Slope
d Offset
e Selected weather-dependent zone:
▪ : Main zone or additional zone heating
▪ : Main zone or additional zone cooling
X1, X2 Examples of outdoor ambient temperature
Y1, Y2, Y3,
Y4
Examples of desired leaving water temperature. The icon
corresponds to the heat emitter for that zone:
▪ : Underfloor heating
▪ : Fan coil unit
▪ : Radiator
Possible actions on this screen
Select slope or offset.
Increase or decrease the slope/offset.
When slope is selected: set slope and go to offset.
When offset is selected: set offset.
Confirm changes and return to the submenu.
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