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 dewpoint or sensor alarm.
Ordering and Specifications Electronic dew-point alarm
Type |
Description |
Code no. |
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EDA-24 |
Electronic dew-point alarm, 24 V power supply |
088H3001 |
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EDA-230 |
Electronic dew-point alarm, 230 V power supply |
088H3002 |
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EDA-S |
Sensor for electronic dew-point alarm |
088H3011 |
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Accessories |
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Description |
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Code no. |
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Plastic box for EDA, enclosure IP54, dimensions, mm: H = 130, D = 94, W = 94 |
088H3010 |
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Valve |
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Type |
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Description |
Code no. |
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RA-C 15 |
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For chilling and heating circuits |
013G3094 |
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RA-C 20 |
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For chilling and heating circuits |
013G3096 |
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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.
Danfoss Heating Solutions |
VD36A302 |
© Danfoss |
02/2011 |
1 |
Data Sheet |
Dew-Point Alarm Types EDA-24 and EDA-230 |
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Wiring Diagram |
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To sensor |
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Power supply |
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Data |
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Type |
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EDA-24 |
EDA-230 |
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Supply voltage |
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24 VAC± 10%, 50-60 Hz |
230 VAC ± 10%, 50-60 Hz |
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Power consumption |
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3 VA |
3 VA |
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Relay output 1* |
(7-5 / 7-6) |
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230 VAC, 10 A, NO/NC |
230 VAC, 10 A, NO/NC |
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Relay output 2* |
(13-14) |
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24 VAC, 2 A, NC |
24 VAC, 2 A, NC |
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Ambient temperature |
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-20 /+50 °C |
-20 /+50 °C |
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*Stated with connected supply voltage, but condensate alarm not in alarm mode.
Dimensions
2 |
VD36A302 |
© Danfoss |
02/2011 |
Danfoss Heating Solutions |
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