Danfoss ABN-FBH Data sheet

Data Sheet

Thermal actuator ABN-FBH

Application

Functions

The ABN-FHB actuator is a thermoelectric actuator for opening and closing valves on heating circuit manifolds in underoor heating systems. The actuator has been specially developed for targeted use in the widest variety of systems. Its compact size, design, functionality and exibility are the most impressive features. A valve adapter concept guarantees the perfect adjustment of the actuator to almost any valve bases and heating circuit manifolds on the market.

General

The actuator mechanism of the ABN-FBH actuator uses a positive temperature coecient (PTC) resistor heated element and a compression spring. The expansion element is heated by creating the operating voltage, which moves the integrated piston. The force generated by the movement is transferred to the valve piston and thus opening or closing the valve.

The ABN-FHB actuator serves to ensure the optimum control of valves on heating circuit manifolds. Control is performed via a 2-point room temperature regulator or by pulse width modulation.

Performance features:

• Compact design, minimal dimensions

• 360° mounting position

• Patented protection for leaking valves

• Normally-closed (NC) and normally-open (NO) designs available

• All-round function display

• First-open function (only for normally-closed)

• Maintenance-free

• Noiseless

• High functional safety and service life

• Low power consumption

• Plug-in assembly

• Valve adapter concept

• Adjustment control on valve

Function display

The function display (all-round display) on the ABN-FBH actuator shows at a glance whether the valve is open or closed.

VDANT202

Normally closed (valve closed)

In case of the normally closed version, the valve is opened steadily by the piston’s movement upon switching on the operating voltage and after expiry of the dead time. Switching o the operating voltage cools the expansion element. After expiry of the dwell time, the valve is closed evenly by the closing force of the compression spring. The closing force of the compression spring is matched to the closing force of the valves and keeps the valve closed when de-energized.

Valve adapter concept

The valve adapter concept guarantees the perfect adjustment of the actuator to almost any valve bases and heating circuit manifolds on the market. The ABN-FBH actuator is simply fastened to the pre-installed valve adapter by plug-in assembly.

In the NC version (normally closed) the function display switches o when the valve opens.

In the NO version (normally open) the function display switches o when the valve closes.

Data Sheet Thermal actuator ABN-FBH

First-open function (only for NC)

Ordering

Technical Specications

The ABN-FBH actuator is delivered with the rst-open function normally open. This allows heating operation in the preliminary construction phase, even if the electrical wiring of the individ-

the later start-up, the rst open function is automatically unlocked by applying the operating voltage (for more than 6 minutes) and the ABN-FBH actuator is fully ready to function.

ual room controllers is not yet completed. During

Typ e Design Voltage Part No.

ABN-FBH 230 NC On/o control normally closed 230 V, 1 W 193B2147 ABN-FBH 230 NO On/o control normally open 230 V, 1 W 193B214 9 ABN-FBH 24 NC On/o control normally closed 24 V, 1 W 193B214 8 ABN-FBH 24 NO On/o control normally open 24 V, 1 W 193B2150

Typ e 24 V 230V

Design Normally closed/normally open Normally closed/normally open Voltage 24 V AC/DC, +20%...-10% 230 V AC, +10%...-10%, 50/60 Hz Inrush current, max. < 300 mA for max. 2 min. < 550 mA for max. 100 ms Operating power 1 W

1 W

Actuator travel 3.5 / 4.0 / 5.0 mm 3.5 / 4.0 / 5.0 mm Actuating force 100 N ± 5% 100 N ± 5% Fluid temperature 0 to +100° C

0 to +100° C

Storage temperature -25°C to +60° C -25°C to +60° C Ambient temperature 0 to +60° C 0 to +60° C Degree of protection/protec-

tion class

IP 54

IP 54 3) / II

CE conformity according to EN 60730 EN 60730 Housing material/colour Polyamide/light grey (RAL 7035) Polyamide/light grey (RAL 7035)

Connection cable/colour

2 x 0.75 mm² PVC

/light grey (RAL 7035)

2 x 0.75 mm² PVC

/light grey (RAL 7035) Cable length 1 m 1 m Weight with connection cable 100 g 100 g Overvoltage protection

according to EN 60730-1

Measured with precision power meter LMG95.

Depending on the adapter also higher.

In all mounting positions.

min 2.5 kV min 2.5 kV

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