Operating instruction
EC3-D7x Digital Superheat Controller
EC3-D72 with TCP/IP communication capability
Emerson Climate Technologies GmbH
www.emersonclimate.eu
Am Borsigturm 31 I 13507 Berlin I Germany
Date: 18.07.2017
EC3-D7x_OI_ML_R06_865019.docx
T e c h n i c a l d a t a
Power supply
24 VAC ±10%; 50/60 Hz; 1 A
Power consumption
25 VA max. including EX4-6
Plug-in connector
Removable screw terminals
wire size 0.14…1.5 mm
2
Grounding
6.3 mm spade earth connector
Protection class
IP20
COM, TCP/IP connection
RJ45 Ethernet
Connection to optional ECD-002
ECC-Nxx or CAT5 cable with RJ45 connectors
Digital Input; Cooling demand
0/24 VAC/DC for stop/start function
EX valve closes during stop command. Typically thermostat or third party controller.
Digital Input; Comp2 running
0/24 VAC/DC typically connected to auxiliary connection
EXV control loop remains active when input is 24 V and the digital scroll is idle.
NTC input; Coil-out temperature sensor
EMERSON temperature sensor ECN-Nxx/ECN-Pxx
NTC input; Discharge temperature sensor
Copeland® NTC 86 kOhm at +25 °C
4-20 mA Analog input
EMERSON PT5 Pressure Transmitter
4-20 mA Analog output
Deviation from input signal
For connection to any 3
rd
party controller with 12/24 VDC power supply and appropriate burden
±8% max
Output alarm relay
(If L2 = 1)
Activated:
Deactivated:
SPDT contacts 24 VAC/DC, 2 A inductive load
During normal operation (no alarm condition)
During alarm condition or power supply is OFF
Output pump down relay
(If L2 = 1)
Activated:
Deactivated
SPDT contact 24 VAC/DC, 2 Amp inductive load
During normal operation
All other conditions
Output Digital Scroll Triac
24 V or 230 V AC output to activate PWM valve on Digital Scroll
Ambient temperature range
0…+60°C
+1…+25°C (for best battery life time)
> 35°C battery life time < 2 years
Marking
,
D i m e n s i o n s [ m m ] :
EC3-D7x
ECD-002
