Data Sheet for Product

6/16
Siem ens Modulating control valves with magnetic actuators, PN 16 CA1N4455en
Building Technologies 2018-02-05
The two-color LED display indicating operating status can be viewed by opening the
cover of the electronics module.
LED Indication Function Remarks, troubleshooting
Green Lit Control mode Automatic operation; everything o.k.
Flashing Calibration
In manual control
Wait until calibration is finished
(green or red LED will be lit)
Hand wheel in MANUAL or OFF position
Red Lit Calibration error
Internal error
Recalibrate (operate button in opening 1x)
Replace electronics module
Flashing Mains fault Check mains network (outside the frequency or
voltage range) or valve blocked
Both Dark No power supply
Electronics faulty
Check mains network, check wiring
Replace electronics module
As a general rule, the LED can assume only the states shown above (continuously red
or green, flashing red or green, or off).
Sizing
Χp
V
100 = differential pressure across the fully open valve and the valve’s control path A ↑ AB by a
volume flow V
100
V
100
= volume flow through the fully open valve (H
100
)
Χpmax = max. permissible differential pressure across the valve’s control path for the entire actuating
range of the motorized valve
100 kPa = 1 bar ≡ 10 mWC
1 m
3
/h = 0.278 l/s water at 20 °C
Indication of
operating state
Flow chart