Application 10
EI.65.D4.02
79
ECL 2000 Type 2:
The motor valve M3 controls the storage tank temperature, which is measured by
the sensor S6. During tank heating, M3 performs PI regulation of the return tem-
perature in the hot-water circuit measured by S11. Because of the delay caused by
the storage tank and the return temperature control, the integral action must be dis-
abled. The circulation pump P3 is controlled according to the 7-day program.
Use the controller’s service menu to set the parameter
Integr. time to 0. This disables the integral action.
Appendix C of this Guide provides an overview of the
service menus. The ECL 2000 User’s Guide (ref. [2])
provides detailed instructions for operating the service
menus.
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