Danfoss EDA-24, EDA-230 Data sheet

Data Sheet

Dew-Point Alarm Types EDA-24 and EDA-230

Application

EDA Dew-point Alarm

EDA is an electronic dew-point alarm for
monitoring chilled panels or chilled beams.

EDA can be used in connection with Danfoss self­actuating climatic regulator FED/FEK.

Via sensor type EDA-S, the electronic dew-point
alarm EDA registers whether condensate is
appearing on the flow pipe to the chilled panel/
chilled beam.

When condensate is registered on the flow pipe
to the chilled panel/chilled beam, the electronic
dew-point alarm EDA is activated. In the alarm

mode, the two potential-free relay outputs are
activated. The relay outputs can be used to shut
off the chilling valve for the chilled panel/chilled
beam and to give a signal to a alarm system or
BMS system that condensate has generated in
this regulation zone. The relay outputs are in the
alarm mode in the case of condensate, short­circuited sensor circuit or disconnected sensor
circuit.

EDA has a potentiometer for setting the
sensitivity of the EDA-S sensor.
The EDA-S sensor is placed on the flow pipe for
the chilled panel/beam, following which
condensate on the EDA-S sensor will trigger an
alarm.
The sensor is attached by means of plastic strips
supplied with the EDA-S sensor.

LED indication:

On the front of the electronic dew-point alarm,
EDA, there are two LEDs:

Green LED to show whether a supply

▪

voltage has been connected to the product.
Red LED to show whether there is a dew-

▪

point or sensor alarm.

Ordering and Specifications

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Electronic dew-point alarm

Type Description Code no.
EDA-24 Electronic dew-point alarm, 24 V power supply 088H3001
EDA-230 Electronic dew-point alarm, 230 V power supply 088H3002
EDA-S Sensor for electronic dew-point alarm 088H3011

Accessories

Description Code no.
Plastic box for EDA, enclosure IP54, dimensions, mm: H = 130, D = 94, W = 94 088H3010

Valve

Type Description Code no.
RA-C 15 For chilling and heating circuits 013G3094
RA-C 20 For chilling and heating circuits 013G3096

Thermal actuator

All Danfoss thermal actuators, type TWA, can be used with the EDA dew-point alarm.
Further information is available from the TWA data sheets.

Data Sheet Dew-Point Alarm Types EDA-24 and EDA-230

Wiring Diagram

Data

To sensor

Power supply

Type EDA-24 EDA-230
Supply voltage 24 VAC± 10%, 50-60 Hz 230 VAC ± 10%, 50-60 Hz
Power consumption 3 VA 3 VA
Relay output 1* (7-5 / 7-6) 230 VAC, 10 A, NO/NC 230 VAC, 10 A, NO/NC
Relay output 2* (13-14) 24 VAC, 2 A, NC 24 VAC, 2 A, NC
Ambient temperature -20 /+50 °C -20 /+50 °C

Dimensions

*Stated with connected supply voltage, but condensate alarm not in alarm mode.

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Data Sheet Dew-Point Alarm Types EDA-24 and EDA-230

Electrical Connection, Self­Actuating Climatic
Regulator FED-IF

1. FED-IF

2. TWA-A (NC) *

3. Moisture sensor EDA-S

4. RA-C

5. RA-N

6. Alarm to BMS, if applicable

7. AVDO

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Data Sheet Dew-Point Alarm Types EDA-24 and EDA-230

Danfoss A/S
Heating Solutions
Haarupvaenget 11
8600 Silkeborg
Denmark
Phone:[phone]
Fax: [phone]
Email: [e-mail]
www.heating.danfoss.com

Danfoss can accept no responsibility for possible errors in catalogues, brochures and other printed material. Danfoss reserves the right to alter its products without notice. This also applies to products
already on order provided that such alterations can be made without subsequential changes being necessary in specifications already agreed. All trademarks in this material are property of the respective
companies. Danfoss and the Danfoss logotype are trademarks of Danfoss A/S. All rights reserved.

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