Danfoss ABN A5 Data sheet

Data sheet

ABN A5 Actuator for AB-QM, ON/OFF

Application

The ABN A5 on/off thermal actuator has been specifically designed for use with AB-QM valves DN10-32/½-1¼ inch in heating and cooling applications.

Actuator convincing features are:

•Stroke 5.0 mm

•Available as normally closed (NC) or normally open (NO)

•Power consumption 1W

•Plug-in cable

•Simple snap-on installation

•IP54 in any installation position

•First-Open function

•Compact size, small dimensions

•All round function indicator

•Noiseless and maintenance-free

•Certified by TÜV

The actuator can be controlled with an on/off or PWM controller which is provided either by a room thermostat or by a central direct digital control (DDC) system.

Function	The actuator mechanism of the ABN A5 actuator
	uses a positive temperature coefficient (PTC)
	resistor heated 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.
	First open function (for NC versions only)
	In its delivery condition, the ABN A5 is kept
	open when de-energized due to the first open
	function (filling). This enables heating/cooling
	operation 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 ABN A5 will then be completely operable.
	Version NC “normally closed” (valve closed)
	In case of the normally closed version, the valve
	is opened steadily by the ram motion upon
	switching on the operating voltage and after
	expiry of the dead time.
	After the operating voltage is cut and after
	expiry of the hold time, the valve is closed evenly
	by the closing force of the compression spring.
	The closing force of the actuator is matched
	to AB-QM DN10-32 valves and keeps the valve
	closed when de-energised.

Fig. 1: Example of opening curve.

Version NC with end switch (082F1154)

The integrated micro switch is switched at a travel path of approx. 2 mm.

After the operating voltage is cut and after expiry of the hold time the valve is closed evenly by the closing force of the compression spring. The integrated switch is closed after an actuator travel of approx. 2 mm.

The closing force of the compression spring is matched to the closing force of commercially available valves and keeps the valve closed when de-energised.

Fig. 2: Example of opening curve.

VD.SK.I3.02 | 1

Data sheet

ABN A5 Actuator for AB-QM, ON/OFF

Function (continuous)	Version NO “normally open”
	In case of the normally open version, the valve
	is closed steadily by the ram motion upon
	switching on the operating voltage and after
	expiry of the dead time.
	After the operating voltage is cut and after
	expiry of the hold time, the valve is opened
	evenly by the compressive force of the valve
	spring.

Fig. 3: Example of closing curve.

Function display

The function display of the ABN A5 (all-round display) allows identifying the operating condition (valve open or closed) at a glance.

Fig. 4: Function display for NC versions extends proportionally with actuator opening from 0 mm to 5-6 mm.

Fig. 5: Function display for NO versions extends only when valve is fully closed by approx. 0.5 mm.

Ordering

Cables

Type	Supply voltage	Normally Open/	Cable	End Switch	Code No.
Type	Supply voltage	Normally Closed	Cable	End Switch	Code No.
		Normally Closed
	24 VAC/DC	NC	Plug-in, not included	No	082F1150
	24 VAC/DC	NO	Plug-in, not included	No	082F1151
ABN A5,	230 VAC	NC	Plug-in, not included	No	082F1152
with VA 41 adapter,	230 VAC	NO	Plug-in, not included	No	082F1153
without cable	24 VAC/DC	NC	Fixed, 1 m	Yes	082F1154
	24 VAC/DC	NC	Fixed, 1 m	Yes	082F1154
	120 VAC	NC	Plug-in, not included	No	082F1156
	120 VAC	NO	Plug-in, not included	No	082F1157

Cables are not included and should be ordered separately (not valid version with end switch). It is possible to select between different lengths and standard or halogen free material.

Cables	Material	Code No.
1 meter	Standard (PVC)	082F1144
5 metres	Standard (PVC)	082F1145
10 metres	Standard (PVC)	082F1146
1 meter	Halogen free	082F1147
5 metres	Halogen free	082F1148
10 metres	Halogen free	082F1149

VD.SK.I3.02

Data sheet

ABN A5 Actuator for AB-QM, ON/OFF

Data
Data	ABN A5 type	24 V	230 V
	ABN A5 type	24 V	230 V

	Version	NC/NO	NC/NO

	Voltage	24 V AC/DC, +20 %...-10 %, 0-60 Hz	230 V AC, +10 %...-10 %, 50/60 Hz

	Max. inrush current	< 300 mA during max. 2 min.	< 550 mA during max. 200 ms

	Operating power	1 W 1)	1 W 1)
	Control voltage	On/Off	On/Off

	Actuator travel	5 mm	5 mm

	Actuating force	100 N	100 N

	Closing and opening time	~4 min.	~4 min.

	Fluid temperature	0 - 100 °C	0 - 100 °C

	Storage temperature	-25 to 65 °C	-25 to 65 °C

	Ambient temperature	0 to 60 °C	0 to 60 °C

	Ambient humidity	95% r.h., non-condensing

	Degree/class of protection	IP542)/III safety extra-Iow voltage	IP542)/II
	CE conformity according to	EN60730, UL60730	EN60730, UL60730

	Housing/housing colour	Polyamid/White RAL9003	Polyamid/White RAL9003

	Connecting cable	2 x 0.75 mm² PVC, or halogen free	2 x 0.75 mm² PVC, or halogen free

	Adapter (included)	VA 41	VA 41

	Overvoltage resistance EN60730-1	min. 2.5 kV	min. 2.5 kV

	Weight	0.1 kg	0.1 kg

1)Measured with precision reference instrument LMG95.

2)In all installation positions.

End switch version. Switching current for micro switch :24V, 3A resistive load, 1A inductive load.

Connections

yellow	red
Operating Voltage 24V AC-DC	End-Switch

Cable connection of version with end switch 082F1154.

VD.SK.I3.02

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