EVCO S.p.A.
EV3 HP & EVD HP | Installer manual ver. 1.2 | Code 1443DHPE124
page 14 of 52
4
ELECTRICAL CONNECTION
4.1
I/O configuration
The table below shows the I/O configuration.
ANALOGUE INPUTS
EV3914LM2
EV3916LM2GF
EVD914BM9
IN1
Condensation temperature/pressure (NTC/4-20
mA)
• • •
IN2
Input water temperature (NTC)
•
•
•
IN3
Output water temperature (NTC)
•
•
•
IN4
Compressor discharge temperature (NTC)
•
•
•
IN5
Battery temperature (NTC)
•
•
•
DIGITAL INPUTS
EV3914LM2
EV3916LM2GF
EVD914BM9
IN10 (EVD)
IN6 (EV3)
System flow switch (NC)
• • •
IN9 (EVD)
IN7 (EV3)
Fan thermal protection
• • •
IN8
Compressor thermal protection (NC)
• • •
IN7 (EVD)
IN9 (EV3)
Maximum pressure switch (NC)
• • •
IN6 (EVD)
IN10 (EV3)
Minimum pressure switch (NC)
• • •
ANALOGUE OUTPUTS
EV3914LM2
EV3916LM2GF
EVD914BM9
AO1 Compressor
(0-10
V/phase
cutting/PWM)
•
•
•
AO2
Fan (0-10 V/phase cutting/PWM)
•
•
•
DIGITAL OUTPUTS
EV3914LM2
EV3916LM2GF
EVD914BM9
DO1 Reversing
valve
• • •
DO2 Enable
fan
• • •
DO3 Circulation
pump
• • •
DO4 Enable
compressor
• • •
TK1
Boiler/system heating element enable
•
TK2 Fan
•
OC1
Boiler/system heating element enable
•