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ESIE05-07 Functional Control for a Standalone Unit
Part 2 – Functional Description 2–25
3
2
4
5
1
Capacity control
with manual mode
CapCir1and Capcir2 are the requested capacities for circuit1 and circuit2. ComprCapC1 /
ComprCapC2 are the calculated compressor capacities based on the feedback signal of the potentio
meters.
There are three possible times for a loadup or loaddown request. One possibility has a fixed time of
1s and this has a fixed resolution (Res1s) of 0,72%. To know the resolution of Restime10s (default
10s) and Restime 5s (default 5s) their time values have to be multiplied by Res1s. For example,
Res10s = Restime10s * Res1s = 10 * 0,72% = 7,2%.
Remark: The loadup-down of 1s is only for the manual mode! not used in automatic mode!
Loadup/dwn
Requested Cap [%]
(= CapCir1/CapCir2)
Loadup10sReq
Loadup5sReq
Loadup1sReq
NoReq
Loadup1sReq
Loadup5sReq
Loadup10sReq
ComprCapC1 [%]
ComprCapC2 [%]
Res10s Res10s
Res5sRes5s
Res1s
ESIE05-07.book Page 25 Wednesday, October 11, 2006 10:42 AM

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