
The shown diagram is a fundamental and simplied example and
does not contain all components that are necessary in a system.
If the system you are about to install diers from the shown
diagram of a standard system, feel free to sketch an outline for
comparison. Adaptation of systems, see section 10.
Circuit
indicator
Circuit
selector
Shift
button
Adjust-
ment
Controller
mode
This guide is associated with ECL Card 087B4730
Installer:
By:
Date:
Controller mode
Manual operation (used only at maintenance
and service)
Scheduled operation
Constant comfort temperature
Constant saving temperature
Standby mode
Arrow buttons. Switch between the lines of the ECL
Card.
Shift button. Switches between temperatures,
changeover points etc.
Adjust temperatures and values etc.
Circuit selector for switching between the circuits.
Safety Note
To avoid injury of persons and damages to the device, it is absolutely
necessary to read and observe these instructions carefully.
Necessary assembly, start-up, and maintenance work must be performed by
qualied and authorized personnel only.
Display indications, controlled units, C17
A: P1 Blank = OFF ON = ON
B: M1 = Opens = Closes
C: P2 Blank = OFF ON = ON
D: P3 Blank = OFF ON = ON
List of components:
ECL Comfort 300
S1 Supply temperature sensor
S2 DHW charging temperature sensor
S3 DHW temperature sensor
S4 Return temperature sensor
S5
Lower tank temperature sensor
S6
Upper tank temperature sensor
P1 Circulation pump, primary circuit
P2 DHW charging pump
P3 DHW circulation pump
M1 Motorized control valve
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