Installation Guide
ECL Comfort 310, application A376
M run (running time of the motorized control valve) —
A376.9
12186
Circuit
Setting range
Factory setting
2
5 ... 250 s
120 s
‘M run’ is the time in seconds it takes the controlled component
to move from fully closed to fully open position. Set the ‘M run’
according to the examples or measure the running time by means
of a stop watch.
How to calculate the running time of a motorized control valve
The running time of the motorized control valve is calculated using
the following methods:
Seated valves
Running time = Valve stroke (mm) x actuator speed (sec. / mm)
Example:
5.0 mm x 15 sec. / mm = 75 sec.
Rotating valves
Running time = Turning degrees x actuator speed (sec. / degr.)
Example:
90 degr. x 2 sec. / degr. = 180 sec.
Nz (neutral zone)
12187
Circuit
Setting range
Factory setting
2
1 ... 9 K
3 K
Set the acceptable flow temperature deviation.
Set the neutral zone to a high value if you can accept a high
variation in flow temperature. When the actual flow temperature
is within the neutral zone, the controller does not activate the
motorized control valve.
The neutral zone is symmetrical around the desired flow temperature
value, i.e. half the value is above and half the value is below this
temperature.
116
DEN-SMT/DK
VI.GU.B1.02
Danfoss District Energy
