Danfoss EDA-24, EDA-230 Data sheet [fa]

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
self-actuating climatic regulator FED/FEK or
Danfoss electronic climatic regulator ECC.

Via sensor type EDA-S, the electronic dew­point 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, short-circuited 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 volt-

age has been connected to the product.

 Red LED to show whether there is a dew-

point or sensor alarm.

Ordering and
specifications

Electronic dew-point alarm

Type Description Code no.
EDA-24 Electronic dew-point alarm, 24 V sypply 088H3001
EDA-230 Electronic dew-point alarm, 230 V 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 ABN, can be used with the EDA dew-point alarm. It is, how­ever, recommendable to use NC-versions, which will also close in case of power failure.
Further information is available from the ABN data sheets.

DKCD VD.36.A1.02 © Danfoss 03/2001

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 V AC, 2 A, NC 24 V AC, 2 A, NC
Ambient temperature -20 / +50 °C -20 / +50 °C

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

Dimensions

2 VD.36.A1.02 © Danfoss 03/2001 DKCD