Application
Standard filtration in comfort air conditioning systems allows for use of the controller in the supply air without additional dust protection. Since a partial volume flow is passed through the transducer in order to measure the volume flow rate, please note:
Application
Standard filtration in comfort air conditioning systems allows for use of the controller in the supply air without additional dust protection. Since a partial volume flow is passed through the transducer in order to measure the volume flow rate, please note:
Construction
Operating modes
Variable volume flow
Constant value
Signal voltage range
Parts and characteristics
Construction
Operating modes
Variable volume flow
Constant value
Signal voltage range
Parts and characteristics
Functional description
VAV terminal units control the volume flow in a closed loop, i.e. measurement – comparison – control.
The volume flow rate is determined by measuring the differential pressure (effective pressure). For this purpose the VAV terminal unit is fitted with a differential pressure sensor.
The integral differental pressure transducer transforms the effective pressure into a voltage signal. The volume flow rate actual value is hence available as a voltage signal. The factory setting is such that 10 V DC always corresponds to the nominal volume flow rate (Vnom).
The volume flow rate setpoint value comes from a higher-level controller (e.g. room temperature controller, air quality controller, central BMS) or from switch contacts. Variable volume flow control results in a value between Vmin and Vmax. It is possible to override the room temperature control, e.g. by a complete shut-off of the duct.
The controller compares the volume flow rate setpoint value to the actual value and controls the integral actuator accordingly.
The volume flow rate parameters Vmin and Vmax can be set on potentiometers.
Volume flow control
Functional description
VAV terminal units control the volume flow in a closed loop, i.e. measurement – comparison – control.
The volume flow rate is determined by measuring the differential pressure (effective pressure). For this purpose the VAV terminal unit is fitted with a differential pressure sensor.
The integral differental pressure transducer transforms the effective pressure into a voltage signal. The volume flow rate actual value is hence available as a voltage signal. The factory setting is such that 10 V DC always corresponds to the nominal volume flow rate (Vnom).
The volume flow rate setpoint value comes from a higher-level controller (e.g. room temperature controller, air quality controller, central BMS) or from switch contacts. Variable volume flow control results in a value between Vmin and Vmax. It is possible to override the room temperature control, e.g. by a complete shut-off of the duct.
The controller compares the volume flow rate setpoint value to the actual value and controls the integral actuator accordingly.
The volume flow rate parameters Vmin and Vmax can be set on potentiometers.
Volume flow control
Easy controller LMV-D3AL-F
Supply voltage (AC) | 24 V AC ± 20 %, 50/60 Hz |
Supply voltage (DC) | 24 V DC −10/+20 % |
Power rating (AC) | 3.5 VA max. |
Power rating (DC) | 2 W max. |
Running time for 90° | 120 – 150 s |
Setpoint value signal input | 0 – 10 V DC, Ra > 100 kΩ |
Actual value signal output | 0 – 10 V DC, 0.5 mA max. |
IEC protection class | III (protective extra-low voltage) |
Protection level | IP 20 |
EC conformity | EMC to 2014/30/EU, low voltage to 2014/35/EU |
Easy controller 227V-024T-05-013
Supply voltage (AC) | 24 V AC ± 20 %, 50/60 Hz |
Supply voltage (DC) | 24 V DC ± 20 % |
Power rating (AC) | 5 VA max. |
Power rating (DC) | 3 W max. |
Running time for 90° | 100 s |
Setpoint value signal input | 0 – 10 V DC, Ra > 100 kΩ |
Actual value signal output | 0 – 10 V DC, 0.5 mA max. |
IEC protection class | III (protective extra-low voltage) |
Protection level | IP 20 |
EC conformity | EMC according to 2014/30/EU |
Easy controllers LMV-D3A and LMV-D3A-F
Supply voltage (AC) | 24 V AC ± 20 %, 50/60 Hz |
Supply voltage (DC) | 24 V DC −10/+20 % |
Power rating (AC) | 5 VA max. |
Power rating (DC) | 2.5 W max. |
Running time for 90° | 110 – 150 s |
Setpoint value signal input | 0 – 10 V DC, Ra > 100 kΩ |
Actual value signal output | 0 – 10 V DC, 0.5 mA max. |
IEC protection class | III (protective extra-low voltage) |
Protection level | IP 20 |
EC conformity | EMC according to 2014/30/EU |
Easy controller 227V-024T-05-002
Supply voltage (AC) | 24 V AC ± 20 %, 50/60 Hz |
Supply voltage (DC) | 24 V DC ± 20 % |
Power rating (AC) | 5 VA max. |
Power rating (DC) | 3 W max. |
Running time for 90° | 100 s |
Setpoint value signal input | 0 – 10 V DC, Ra > 100 kΩ |
Actual value signal output | 0 – 10 V DC, 0.5 mA max. |
IEC protection class | III (protective extra-low voltage) |
Protection level | IP 20 |
EC conformity | EMC according to 2014/30/EU |
Easyregler 227V-024T-15-002
Versorgungsspannung (Wechselspannung) | 24 V AC ± 20 %, 50/60 Hz |
Versorgungsspannung (Gleichspannung) | 24 V DC ± 20 % |
Anschlussleistung (Wechselspannung) | Max. 5 VA |
Anschlussleistung (Gleichspannung) | Max. 3 W |
Laufzeit für 90° | 150 – 270 s |
Eingang Sollwertsignal | 0 – 10 V DC, Ra > 100 kΩ |
Ausgang Istwertsignal | 0 – 10 V DC, max. 0,5 mA |
Schutzklasse | III (Schutzkleinspannung) |
Schutzgrad | IP 20 |
EG-Konformität | EMV nach 2014/30/EU |
Easy controller SMV-D3A
Supply voltage (AC) | 24 V AC ± 20 %, 50/60 Hz |
Supply voltage (DC) | 24 V DC −10/+20 % |
Power rating (AC) | 6 VA max. |
Power rating (DC) | 3 W max. |
Running time for 90° | 110 – 150 s |
Setpoint value signal input | 0 – 10 V DC, Ra > 100 kΩ |
Actual value signal output | 0 – 10 V DC, 0.5 mA max. |
IEC protection class | III (protective extra-low voltage) |
Protection level | IP 20 |
EC conformity | EMC according to 2014/30/EU |
Commissioning
Commissioning
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Contact
We are here for you
Please specify your message and type of request
Tel.: +49 (0)2845 / 202-0 | Fax: +49 (0)2845/202-265
Contact
Thank you for your message!
Your message is send and will be processed shortly.
Our department for Service-Requests will contact you asap.
For general question regarding products or services you can also call:
Tel.: +49 (0)2845 / 202-0 | Fax: +49 (0)2845/202-265