Danfoss ABNM Data sheet
Data Sheet
Actuator type ABNM with Theft Protection, 0-10
V Proportional
Application
Function
The ABNM actuator is a thermoelectric actuator
for opening and closing valves in the fields of
heating, ventilation and air conditioning systems
(HVAC).
Control is by a 0-10 V signal which is provided either by a room thermostat or, in most cases, by a
central direct digital control (DDC) system. The
actuator converts the 0-10 V signal into a proportional actuator travel.
Ideal use in heating/cooling systems and in
▪
combination with central direct digital control (DDC) systems in building management
systems (BMS).
The actuator mechanism of the ABNM actuator
uses a positive temperature coefficient (PTC) resistorheated wax element and a compression
spring. The wax element is heated by applying
the operating voltage and moves the integrated
piston. The force generated by this movement is
transferred to the piston, thus opening or closing
the valve.
The closing force of the compression spring
(100N actuating force) is matched to the closing
force of the valves and keeps the valve closed
when de-energized. When the control voltage is
applied (0-10 V), the wax element is heated under
electronic control. The actuator provides active
regulation in a defined range (see characteristic
curve between 0.5 V and 10 V).
during the carcass construction phase even when
the electric wiring is not yet complete. During the
later electrical start-up, the first open function is
unlocked by applying the operating voltage for
more than 6 minutes and the ABNM will then be
completely operable.
Automatic calibration
During the electrical start-up the valve closing
point is detected. This ensures an optimum
match with the specific valve used.
Function display
The function display (all-round display) of the
ABNM shows at the first glance whether the valve
is “open” or “closed”.
In the range of 0 – 0.5 V, the actuator remains in a
quiescent state in order to ignore ripple voltage
occurring in long cables. The relation between
control voltage and actuator travel is balanced by
optical path measurement, allowing very accurate positioning. When the control voltage is outside of the active range, the valve is kept closed
by the closing force of the compression spring.
First open function (for NC only)
In its delivery condition, the ABNM is kept open
when de-energised due to the first open function
(filling). This enables heating/cooling operation
Danfoss Heating Solutions VD78H602 © Danfoss 06/2012 1
Theft protection
If the shield is taken off, it is not possible to part
the thermal actuator from the adapter.
Data Sheet Actuator type ABNM with Theft Protection, 0-10 V Proportional
Code Nos. and Technical
Data
Accessories
Type
With adapter for
Danfoss RA valves
Valve adapters
Connection Code no.
Danfoss RA 2000 (VA78) 082F1071
M30 x 1.5 Heimeier, MNG, Oventrop 082F1073
Note: For AB-QM adaptor order 082F1072 or 082F1075 for ABNM LOG/LIN actuator.
Cable (halogen free)
Length Code no.
1 meter 082F1081
5 meter 082F1082
10 meter 082F1083
Supply
voltage
24 V AC 0-10 V DC
Control
voltage
Valve function
NC (normally
closed)
Cable
length
1 m 082F1091
Code no.
Data
Version Closed when de-energized
Voltage 24 VAC 50/60 Hz (-20% to 40%)
Max. inrush current 250 mA during approx. 2 min.
Operating current 83 mA
Operating power 2 W
Control voltage 0-10 V DC
Proportional conversion range of control voltage 0.5-10 V DC
Input resistance 100 kΩ (10 kΩ possible, if ordered)
Actuator travel 4 mm (minus over-elevation); max. 3.5 mm
Average actuation delay 30 s/mm
Actuating force 100 N +/- 5%
Operating temperature 0 - 60 °C
Fluid temperature 0 - 100 °C
Storage temperature -25 to 65 °C
Ambient temperature 0 to 60 °C
Relative humidity max. 80%
Degree/class of protection IP54/Safety extra-Iow voltage
CE conformity according to 60730
Housing / housing colour Polyamid/white RAL 9003
Weight 100 g without adapter and cable
Connecting cable / cable length
3 x 0.22 mm2 PVC, white/1
2 VD78H602 © Danfoss 06/2012 Danfoss Heating Solutions
Loading...