Min/Max actuators

Stellantrieb LM24A-F

MIN/MAX ACTUATORS

For constant volume flows with Vmin/Vmax switching in air conditioning systems

Actuators for mechanical self-powered CAV controllers Type EN, RN, or VFC, and for flow adjustment dampers Type VFR

Switching between two volume flow setpoint values, e.g. for daytime and night-time operation
Supply voltage 24 V AC/DC or 230 V AC
Control input signal: 1-wire control or 2-wire control (3-point)
Potentiometer or mechanical stops
Positive lock connection with CAV controller
Retrofit possible

Application

Application

Actuators for min/max switching
Switching between volume flow setpoint values of mechanical self-powered CAV controllers Type RN, EN or VFC
Change of the damper blade positions of flow adjustment dampers Type VFR

Description

Parts and characteristics

Potentiometer or mechanical stops for setting the volume flow rate setpoints
Supply voltage 24 V AC/DC or 230 V AC
Overload protection
1-wire control or 2-wire control (3-point)
Optional auxiliary switch for capturing the end positions

Technical information

Function, TECHNICAL DATA, Produktbeziehungen

1-Draht-Steuerung

Schalterfunktionen
S1 geöffnet: Drehrichtung 1
S1 geschlossen: Drehrichtung 2

Functional description

The actuator moves a damper blade or a damper blade mechanism to the minimum or maximum position.

Minimum and maximum positions can be set on potentiometers or using mechanical stops.

1-wire control or 2-wire control (3-point) can be used.

1-wire control is actually an open/close control or min/max control.

Control options and effect of actuator action in case of factory setting

Order code detail	Function	Control	Direction of rotation
Order code detail	Function	Control	1	2
B50, B52	Min/Max	1-wire control, 2-wire control	V_min	V_max
B60, B62	Min/Max	1-wire control, 2-wire control	V_min	V_max
E01	Min/Max	1-wire control, 2-wire control	V_min	V_max
E02	Min/Max	1-wire control, 2-wire control	V_min	V_max
M01	Min/Max	1-wire control, 2-wire control	V_max	V_min
M02	Min/Max	1-wire control, 2-wire control	V_max	V_min

Actuators LM24A and LM24A-F

Supply voltage (AC)	24 V AC ± 20 %, 50/60 Hz
Supply voltage (DC)	24 V DC ± 20 %
Power consumption – load	1 W
Power consumption – idle	0.2 W
Power rating	1.5 VA
Torque	5 Nm
Running time for 90°	150 s
Control input signal	1-wire control or 2-wire control (3-point)
Connecting cable	3 × 0.75 mm², 1 m long
IEC protection class	III (protective extra-low voltage)
Protection level	IP 54
EC conformity	EMC to 2014/30/EU, RoHS to 2011/65/EU
Operating temperature	–30 to 50 °C
Weight	0.5 kg

Actuator LM230A and LM230A-F

Supply voltage	100 – 240 V AC –15 % +10 %, 50/60 Hz
Power consumption – load	1.5 W
Power consumption – idle	0.5 W
Power rating	3.5 VA
Torque	5 Nm
Running time for 90°	150 s
Control input signal	1-wire control or 2-wire control (3-point)
Connecting cable	3 × 0.75 mm², 1 m long
IEC protection class	II (protective insulation)
Protection level	IP 54
EC conformity	EMC to 2014/30/EU, low voltage to 2014/35/EU, RoHS to 2011/65/EU
Operating temperature	–30 to 50 °C
Weight	0.5 kg

Auxiliary switch S2A

Type of contact	2 changeover contacts¹⁾
Max. switching voltage (AC)	250 V AC
Max. switching current (AC)	3 A (resistive load); 0.5 A (inductive load)
Max. switching voltage (DC)	110 V DC
Max. switching current (DC)	0.5 A (resistive load); 0.2 A (inductive load)
Connecting cable	6 × 0.75 mm², 1 m long
IEC protection class	II (protective insulation)
Protection level	IP 54
EC conformity	EMC to 2014/30/EU, low voltage to 2014/35/EU, RoHS to 2011/65/EU
Operating temperature	–30 to 50 °C
Weight	0.250 kg

¹⁾ If both auxiliary switches are used the switching voltages must be the same

Actuator 224-24-03-001

Supply voltage (AC)	24 V AC ± 20 %, 50/60 Hz
Supply voltage (DC)	24 V DC ± 20 %
Power rating (AC)	4.5 VA
Power rating (DC)	3 W
Torque	2.5 Nm
Running time for 90°	20 – 60 s
Control input signal	1-wire control or 2-wire control (3-point)
Connecting cable	3 × 0.75 mm², 1 m long
IEC protection class	III (protective extra-low voltage)
Protection level	IP 42
EC conformity	EMC to 2014/30/EU, RoHS to 2011/65/EU
Operating temperature	0 to 50 °C
Weight	0.32 kg

Actuator CM24-F

Supply voltage (AC)	24 V AC ± 20 %, 50/60 Hz
Supply voltage (DC)	24 V DC ± 20 %
Power rating (AC)	1 VA max.
Power rating (DC)	0.5 W max.
Torque	2 Nm
Running time for 90°	75 s
Control input signal	1-wire control or 2-wire control (3-point)
Connecting cable	3 × 0.75 mm², 1 m long
IEC protection class	III (protective extra-low voltage)
Protection level	IP 54
EC conformity	EMC to 2014/30/EU, RoHS to 2011/65/EU
Operating temperature	–30 to 50 °C
Weight	0.185 kg

Actuator 224-230-03-002

Supply voltage	230 V AC, 50/60 Hz
Power rating	4.5 VA
Torque	2.5 Nm
Running time for 90°	20 – 60 s
Control input signal	1-wire control or 2-wire control (3-point)
Connecting cable	3 × 0.75 mm², 1 m long
IEC protection class	II (protective insulation)
Protection level	IP 42
EC conformity	EMC to 2014/30/EU, low voltage to 2014/35/EU, RoHS to 2011/65/EU
Operating temperature	0 to 50 °C
Weight	0.32 kg

Actuator CM230-F

Supply voltage	100 to 240 V AC –15 % +10 %, 50/60 Hz
Power rating	3 VA
Torque	2 Nm
Running time for 90°	75 s
Control input signal	1-wire control or 2-wire control (3-point)
Connecting cable	3 × 0.75 mm², 1 m long
IEC protection class	II (protective insulation)
Protection level	IP 54
EC conformity	EMC to 2014/30/EU, low voltage to 2014/35/EU, RoHS to 2011/65/EU
Operating temperature	–30 to 50 °C
Weight	0.185 kg

Variants

Actuator LM24A

Any attachments are to be defined with the order code of the CAV controller.

B5*

Application

Actuator LM24A-F for the min/max switching of volume flow setpoint values of mechanical self-powered volume flow controllers Type RN or EN (only up to a height of 300 mm)

Variants

B52: with auxiliary switch for capturing the end positions

Parts and characteristics

Supply voltage 24 V AC/DC
1-wire control or 2-wire control (3-point)
Mechanical stops for setting the volume flow rate setpoints
Switch for setting the direction of rotation
Positive lock connection with damper blade shaft
Release button to allow for manual operation

Commissioning

Set the mechanical stops according to the minimum and maximum volume flow rates
Change the direction of rotation if necessary, using the switch, to switch between V_min andV_max

B6*

Application

Actuator LM230A-F for the min/max switching of volume flow setpoint values of mechanical self-powered volume flow controllers Type RN or EN (only up to a height of 300 mm)

Variants

B62: with auxiliary switch for capturing the end positions

Parts and characteristics

Supply voltage 230 V AC
1-wire control or 2-wire control (3-point)
Mechanical stops for setting the volume flow rate setpoints
Switch for setting the direction of rotation
Positive lock connection with damper blade shaft
Release button to allow for manual operation

Commissioning

Set the mechanical stops according to the minimum and maximum volume flow rates
Change the direction of rotation if necessary, using the switch, to switch between V_min andV_max

B*2

Application

Auxiliary switch S2A for capturing damper blade end positions (end positions reached through actuator operation)
Volt-free contacts for signalling or activating switch functions
Two integral switches, e.g. for damper blade OPEN and damper blade CLOSED
Potentiometer for setting any switch point

E01

Application

Actuator 224-024-03-001 for min/max switching
Min/Max switching between volume flow setpoint values of mechanical self-powered CAV controllers Type VFC
Min/Max change of the damper blade positions of flow adjustment dampers Type VFR

Parts and characteristics

Supply voltage 24 V AC/DC
1-wire control or 2-wire control (3-point)
Potentiometer for setting the volume flow rate setpoints
Positive lock connection with damper blade shaft
Functional test button: Motor drives first to minimum position, then to maximum position, then returns to the set position
Indicator light: Actuator has reached setpoint, actuator in motion, actuator blocked

Commissioning

Use the potentiometer to set the minimum or maximum volume flow rate or the damper blade position

M01

Application

Actuator CM24-F for min/max switching
Min/Max switching between volume flow setpoint values of mechanical self-powered CAV controllers Type VFC
Min/Max change of the damper blade positions of flow adjustment dampers Type VFR

Parts and characteristics

Supply voltage 24 V AC/DC
1-wire control or 2-wire control (3-point)
Mechanical stops for setting the volume flow rates
Positive lock connection with damper blade shaft
Gear release magnet

Commissioning

Set the mechanical stops according to the minimum and maximum volume flow rates or the damper blade position

E02

Application

Actuator 224-230-03-002 for min/max switching
Min/Max switching between volume flow setpoint values of mechanical self-powered CAV controllers Type VFC
Min/Max change of the damper blade positions of flow adjustment dampers Type VFR

Parts and characteristics

Supply voltage 230 V AC
1-wire control or 2-wire control (3-point)
Potentiometer for setting the volume flow rate setpoints
Positive lock connection with damper blade shaft
Functional test button: Motor drives first to minimum position, then to maximum position, then returns to the set position
Indicator light: Actuator has reached setpoint, actuator in motion, actuator blocked

Commissioning

Use the potentiometer to set the minimum or maximum volume flow rate or the damper blade position

M02

Application

Actuator CM230-F for min/max switching
Min/Max switching between volume flow setpoint values of mechanical self-powered CAV controllers Type VFC
Min/Max change of the damper blade positions of flow adjustment dampers Type VFR

Parts and characteristics

Supply voltage 230 V AC
1-wire control or 2-wire control (3-point)
Mechanical stops for setting the volume flow rate setpoints
Positive lock connection with damper blade shaft
Gear release magnet

Commissioning

Set the mechanical stops according to the minimum and maximum volume flow rates or the damper blade position

Actuators for volume flow controllers Type RN or EN

Order code detail	Actuator			Auxiliary switch
Order code detail	Part number	Type	Supply voltage	Part number	Type
B50	M466DT4	LM24A-F	24 V	–	–
B52	M466DT4	LM24A-F	24 V	M536AI3	S2A
B60	M466DT5	LM230A-F	230 V	–	–
B62	M466DT5	LM230A-F	230 V	M536AI3	S2A

Actuators for volume flow controllers Type VFC and for flow adjustment dampers Type VFR

Order code detail	Part number	Type	Setpoint setting	Supply voltage
E01	A00000038358	224-024-03-001	Potentiometer	24 V
M01	M466EP4	CM24-F	Mechanical stops	24 V
E02	A00000038359	224-230-03-002	Potentiometer	230 V
M02	M466EP5	CM230-F	Mechanical stops	230 V

Electrical connection

LM24A, connecting cable core identification

1 ⊥, –: Ground, neutral
2 ~, +: Control voltage for direction of rotation 1
3 ~, +: Control voltage for direction of rotation 2

LM24A and LM24A-F

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MIN/MAX ACTUATORS

For constant volume flows with Vmin/Vmax switching in air conditioning systems

Application

Description

Technical information

Function, TECHNICAL DATA, Produktbeziehungen

Variants

Electrical connection

Downloads

product information

Print page Min/Max actuators

TROX Services

TECHNICALLY NECESSARY

STATISTICS AND WEBSITE ANALYSIS

CONVENIENCE AND PERSONALISATION

FOR THE BEST TROX EXPERIENCE