![background image](http://html1.mh-extra.com/html/danfoss/ecl-2000/ecl-2000_installation-manual_3464574086.webp)
Application 10
EI.65.D4.02
80
System diagram 10B
Boiler system with control of two heat circuits and a hot-water tank
Note:
This application is designed for ECL 2000 Type 1 and is not used with Type 2.
Heat circuit 1
The heat circuit is connected directly to the boiler. The mixing valve M1 controls
the flow temperature, which is measured by the sensor S1. The return temperature
measured by the sensor S2 can be limited. The circulation pump P1 is running
when the reference flow temperature is above 20 °C or the outdoor temperature is
below 2 °C.
Heat circuit 2
The heat circuit is connected directly to the boiler. The mixing valve M2 controls
the flow temperature, which is measured by the sensor S4. The return temperature
measured by the sensor S5 can be limited. The circulation pump P2 is running
when the reference flow temperature is above 20 °C or the outdoor temperature is
below 2 °C.
Hot-water circuit
The charging pump M
(ON/OFF)
performs on/off control of the storage tank tempera-
ture, which is measured by the sensor S6. The circulation pump P3 is not con-
trolled by the ECL 2000.
Summary of Contents for ECL 2000
Page 1: ...Installation Guide ECL 2000 11 99 EI 65 D4 02...
Page 2: ......
Page 3: ...Installation Guide ECL 2000 Danfoss A S EI 65 D4 02...
Page 16: ...Mounting EI 65 D4 02 10...
Page 26: ...Electrical Connections EI 65 D4 02 20...
Page 120: ...Application 17 Type 2 Only EI 65 D4 02 114...
Page 134: ...Appendix C Service Menus EI 65 D4 02 128...
Page 136: ...References EI 65 D4 02 130...
Page 140: ...Index EI 65 D4 02 134...