Monitoring Temperatures And System Units - Line B; Manual Control - Line B - Danfoss ECL Comfort 300 User Manual

18
Monitoring temperatures
and system units - line B
Controlled units
1 1
B
ON
Flow
1 2
temp.
(S3)
Push and hold the shift button to see:
- the calculated flow temperature
- the desired return temperature limitation.
The activity of the motorized control valve is shown as arrows
below the valve symbol. When the circulation pump is
operating, it is indicated as ON below the pump symbol.
If a sensor is not mounted or is disconnected, the display will
indicate it as "- -".
If the sensor is short-circuited, the display will indicate
it as "- - -".
If you are in doubt, remove the controller and check the
ohmic value between the relevant terminals.
Relationship between temperature and ohmic value
°C
1600
-50 805
1500
-40 845
-30 883
-20 922
1400
-10 961
0 1000
1300
10 1039
20 1078
30 1117
1200
40 1155
50 1194
1100
60 1232
70 1271
1000
80 1309
90 1347
100 1385
900
110 1423
120 1462
800
130 1501
140 1539
150 1578
-50 -25
The grey
side of the
ECL Card
3
Return
1 5
temp.
(S4)
°C
0 25 50 75 100 125 150
Manual control -
line B
Shift to manual mode.
Controlled units
1 1
B
ON
1 2
Choose the unit you want to control. The selected
unit symbol will blink.
Controlled units are switched
the relevant button is pushed.
The motorized actuator (gear motor)
closes or opens
the relevant button is pushed. If pushed for more
than 3 seconds, the actuator continues to close or
open the valve.
Check the activation direction of the actuator either by
looking at it or by feeling whether the temperature of the
actual pipe changes as expected.
This operation applies to both circuits, if available.
During manual operation, all control functions are deactivated.
19
3
Controller mode
1 5
OFF or ON when
the controlled unit as long as
The grey
side of the
ECL Card