E03

Actuator 224C-024-02-003

CAV controllers

EN (Generation 3) with actuator

CAV controller variant VFC/.../E0*, with actuator (potentiometer)

VFC with actuator

Flow adjustment damper, variant VFR, with actuator (potentiometer)

VFR with actuator

E03

FOR MOTORISED SETPOINT VALUE ADJUSTMENT ON CAV TERMINAL UNITS AND FLOW ADJUSTMENT DAMPERS, E.G. SWITCHING BETWEEN QVMIN AND QVMAX

Actuators for mechanically automatic CAV terminal units EN (Generation 3) and VFC as well as flow adjustment damper VFR

Motorised, variable setpoint adjustment
Supply voltage 24 V AC/DC
Control input signal: Voltage signal 0 – 10 V DC
Setting the setpoint range by adjusting the potentiometer on the actuator
Positive lock connection with CAV terminal unit or flow adjustment damper
Retrofit possible

General Information

Application

Variable setpoint adjustment for mechanically automatic CAV terminal units EN, up to a height of 300 mm (generation 3 with setpoint adjustment on blue rotary knob)
Variable setpoint adjustment for mechanically automatic CAV terminal units VFC
Variable setpoint adjustment for flow adjustment dampers VFR
Variable control input signal: Setpoint signal 0 - 10 V DC corresponds to the set operating range V_min - V_max
Working range adjustable via potentiometer

Parts and characteristics

Overload-proof actuator 224C-024-03-003
Positive lock connection with scale adjustment
24 V AC/DC supply voltage
2 Potentiometers V_min, V_max for setting the working range
Control input signal: Setpoint value signal 0 – 10 V DC, corresponds to the working range (set on potentiometers)
Position feedback: 0 - 10 V DC (related to 0 - 93°)
Control LED for signalling operating states
Button for test function

Commissioning

Set volume flow adjustment range by means of adjustment potentiometer V_min and V_max .
For further information on setting and control, see installation instructions, e.g. CAV terminal unit VFC

Technical information

Functional description, Technical data, Specification text, Order Code

Actuator 224C-024-03-003

1 Indicator light (target position reached, actuator movement or blockage)
2 Setting rotation stop V_min position
3 Setting rotation stop V_max position
4 Button for triggering the test function (press for 2 s to trigger test run ± 30°, can only be triggered when the damper is in idle position)

Actuators for CAV terminal units and flow adjustment dampers enable motorisation of the setpoint adjustment, which would otherwise have to be carried out manually on the setting scale. The actuator E03 moves the scale adjustment variably between a minimum and a maximum position.

The setpoint adjustment on the scale is controlled by a 0 - 10 V DC voltage signal.

For actuator E03, this voltage signal is mapped by the setting potentiometer V_min and V_max to the defined angle of rotation.

The scale range to be used for the setpoint specification must be set during commissioning of the CAV terminal unit using the setting potentiometer.

The 0 - 10 V DC output signal of the CAV actuator is merely a position feedback and not an actual volume flow rate value.

The output signal is mapped to the entire rotation angle 0 - 93° of the actuator.

Modulating actuator for CAV terminal unit EN (Generation 3) and VFC as well as flow adjustment damper VFR

Order code detail	Part number	Type	Setpoint value adjustment	Supply voltage
E03	A00000038360	224C-024-03-003	potentiometer	24 V AC/DC

Actuator 224C-024-03-003

Supply voltage (AC voltage)	24 V AC ± 20%, 50/60 Hz
Supply voltage (DC voltage)	24 V DC ± 20 %
Power rating (AC voltage)	4.5 VA
Power rating (DC voltage)	2.5 W
Control signal	0 – 10 V DC, Ra > 100 kΩ
Position feedback	0 – 10 V DC, 1 mA
Torque	2.5 Nm
Runtime for 90°	20 – 60 s
Connecting cable	3 × 0.75 mm², approx. 1 m long
IEC protection class	III (Protective extra-low voltage)
Protection level	IP 42
EC conformity	EMC according to 2014/30/EU, RoHS according to 2011/65/EU
Operating temperature (depends on the operating range of the control unit)	10 – 50 °C
Weight	0.32 kg

Category

Constant actuator

Application

Variable setpoint specification for constant volume flow controllers and flow adjustment dampers

Supply voltage

24 V AC/DC

Interface/signalling

0 – 10 V DC for setpoint position

Connection

Connection cable 4-wire

Interface information

Min/Max setpoint value position can be easily adjusted by potentiometer on site

Factory condition

Actuator factory-mounted on control unit/flow adjustment damper
Potentiometer V_min, V_max Factory-set to position 4 and 8


NR-VAV	–	EN	–	E03
\|		\|		\|
1		2		3

1 Type
NR-VAV Retrofit kit

2 Variant
EN-E03 variable actuator 24 V AC/DC with potentiometer setting for CAV terminal unit EN Generation 3 (setpoint adjustment with rotary knob)
VFC-E03 variable actuator 24 V AC/DC with potentiometer setting for CAV terminal unit VFC
VFR-E03 variable actuator 24 V AC/DC with potentiometer setting for CAV terminal unit VFR

Note:

This is the order code for retrofitting the actuator for a CAV terminal unit or flow adjustment damper.
Generally, the actuator is specified in the initial order via the order code of the basic terminal unit under the section "Actuator for setpoint adjustment" with the order code E03.

Variants, VARIANTS

224C-024-03-003, connecting cable assignment

1 ⊥, -: Ground, Zero
2, ~, +: Supply voltage
3, w: Setpoint value signal 0 – 10 V DC
4, U: Position feedback

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E03

FOR MOTORISED SETPOINT VALUE ADJUSTMENT ON CAV TERMINAL UNITS AND FLOW ADJUSTMENT DAMPERS, E.G. SWITCHING BETWEEN QVMIN AND QVMAX

General Information

Technical information

Functional description, Technical data, Specification text, Order Code

Variants, VARIANTS

DOWNLOADS

product information

Product data sheet E03

E03

FOR MOTORISED SETPOINT VALUE ADJUSTMENT ON CAV TERMINAL UNITS AND FLOW ADJUSTMENT DAMPERS, E.G. SWITCHING BETWEEN QVMIN AND QVMAX

General Information

Technical information

Functional description, Technical data, Specification text, Order Code

Variants, VARIANTS

DOWNLOADS

product information

Product data sheet E03

TECHNICALLY NECESSARY

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