EVCO S.p.A.
EV3 CHIL & EVD CHIL | Installer manual ver. 1.2 | Code 1443DCHILE124
page 13 of 46
4
ELECTRICAL CONNECTION
4.1
I/O configuration
The table below shows the I/O configuration.
ANALOGUE INPUTS
EV3904LM2
EV3906LM2GF
EVD904BM9
IN1
Condensation temperature/pressure (NTC/4-20
mA)
• • •
IN2
Input water temperature (NTC)
•
•
•
IN3
Output water temperature (NTC)
•
•
•
IN4
Compressor discharge temperature (NTC)
•
•
•
DIGITAL INPUTS
EV3904LM2
EV3906LM2GF
EVD904BM9
IN5
System flow switch (NC)
• • •
IN10 (EVD)
IN6 (EV3)
On/Off •
•
•
IN9 (EVD)
IN7 (EV3)
Fan thermal protection
•
•
•
IN8
Compressor 1 thermal protection (NC)
•
•
•
IN7 (EVD)
IN9 (EV3)
Maximum pressure switch (NC)
•
•
•
IN6 (EVD)
IN10 (EV3)
Minimum pressure switch (NC)
•
•
•
ANALOGUE OUTPUTS
EV3904LM2
EV3906LM2GF
EVD904BM9
AO1
Compressor 1 (0-10 V/phase cutting/PWM)
•
•
•
AO2
Fan (0-10 V/phase cutting/PWM)
•
•
•
DIGITAL OUTPUTS
EV3904LM2
EV3906LM2GF
EVD904BM9
DO1 Alarm
•
•
•
DO2 Enable
fan
•
•
•
DO3 Circulation
pump
•
•
•
DO4 Enable
compressor
1
•
•
•
TK1 Compressor
2
•