FläktGroup eQ Controls Modulating damper actuator DM1 Installation and Maintenance Manual

Brand: FläktGroup

Model: eQ Controls Modulating damper actuator DM1

Type: Installation and Maintenance Manual

FläktGroup DC_8801GB 20180521_R0 We reserve the right to make changes without prior notice

MODULATING DAMPER ACTUATOR

STCZ-43

DATASHEET

ELECTROMAGNETIC DAMPER ACTUATOR STCZ-43

WITH ROTARY MOVEMENT FOR MODULATING CONTROL

The damper actuator is designed to operate dampers or mixing

sections inside air handling units or general dampers in

ventilation and air conditioning systems.

The damper actuator is controlled by an external 0...10 VDC

signal and equipped with an internal overload protection mean-

ing that energi consumption in end positions will be reduced.

INTERNAL OVERVIEW

POTENTIOMETERS

There are two potentiometers. These are not used and should

be left in end positions.

- O shall be in 0-position

- S shall be in 10-position.

DISCLAIMER

If DIP-switch 1 or positions of potentiometers are altered we

don't guarantee correct functionality of the control system.

1 2

OFF

ROTATION

With DIP-switch 2 it's possible to reverse rotation. Change it

and you will get reversed operation of the damper according to

input signal.

COMMISSIONING

Check that the actuator is properly wired. Depending of installa-

tion the actuator is connected directly to control equipment or to

a Modbus module, STCZ-70.

Disposal

The devices are considered electronics

devices for disposal in term of European

Directive 2012/19/EU and may not be

disposed of as domestic waste.

• Dispose of the device via the channels provided for

this purpose.

• Comply with all local and currently applicable laws

and regulations.

9 / 14

Siemens2- and 3-port valves with flanged connections, PN 16 CE1N4403en

Building Technologies 2014-03-27

Engineering notes

Preferably mount the valves at the return, as the temperature is lower there and

the strain on the stem sealing gland is lower.

Mount a dirt filter or dirt trap before the valve to ensure proper functioning, and a

long service life of the valve. Remove dirt, welding beads, etc. from the valves and

pipes.

Cavitation can be avoided by limiting the pressure differential across the valve

depending on the medium temperature and prepressure.

Mounting notes

Indoors Outdoors

Mounting positions apply to both 2- and 3-port valves.

Commissioning notes

The valve may be put into operation only if actuator and valve are correctly

assembled.

Ensure that actuator stem and valve stem are rigidly connected in all positions.

Valve Throughport AàAB Bypass BàAB

Valve stem extends Closes Opens

Valve stem retracts Opens Closes

Maintenance notes

The valves are maintenance-free.

When servicing valves or actuators:

· Deactivate the pump and turn off the power supply

· Close the shutoff valves

· Fully reduce the pressure in the piping system and allow pipes to completely

cool down

If necessary, disconnect the electrical wires.

Due to the different types of material used, the valve must be disassembled prior to

disposal. Special handling of certain valve components may be required by law or

may be sensible from an ecological point of view.

Local and currently valid legislation must be observed.

Mounting location

Dirt trap

Cavitation

Monting position

Note

Function check

Disposal

Potentiometers

DIP-switch

Electrical

connections

ON OFF

There are two DIP-switches inside the

actuator.

DIP-switch 1 shall be left in OFF posi-

tion

Datasheet

FläktGroup DC_8801GB 20180521_R0 We reserve the right to make changes without prior notice

Actuator STCZ-43 cc = 00-08 cc = 09-16 cc = 17-24

Torque 8 Nm 16 Nm 24 Nm

Damper area 1.5 m

3.0 m

4.5 m

Running Time OPEN 30 s 80 s 125 s

Running Time CLOSE 30 s 80 s 125 s

Supply Voltage AC/DC 24 V

Frequency 50-60 Hz

Power Consumption

- Running

- At end position

2.5 W

0.3 W

Dimensioning 6.0 VA/3.6 A @ 2 ms

Working area Y not adjustable

Control Signal Y DC 0... 10 V

Imput resistance Y1 250 kΩ

Angle of rotation/Working

range

90° (93° mech.)

Life time 60.000 rotations

Noise level 45 dB (A)

Protection Class II

Degree of Protection IP 54

Mode of Action Type 1

Ambient conditions

- Operating temperature

- Storage temperature

- Humidity

–20...+50 °C/IEC 721-3-3

–30...+60 °C/IEC 721-3-2

5...95% r.F. no condensed

Weight 1.1 Kg

Service Maintenance-free

Standards

- Mechanics

- Electronics

- EMC Emissions

- EMC Immunity

EN 60 529/EN 60 730-2-14

EN 60 730-2-14

EN 50 081-1:92/IEC 61000-6-3:96

EN 50 082-2:95/IEC 61000-6-2:99

TECHNICAL SPECIFI CATIONS

DIMENSIONS (MM)

FläktGroup eQ Controls Modulating damper actuator DM1 Installation and Maintenance Manual

FläktGroup eQ Controls Modulating damper actuator DM1 Installation and Maintenance Manual

FläktGroup eQ Controls Modulating damper actuator DM1 Installation and Maintenance Manual

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