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Idiomas disponibles
5. INSTALLATION
Wiring Diagram EQ3021ES
K2
3
5
1
L
02
2
4
6
HT
E2V
1
3
N
01
2
4
2
4
MTS
RESET
1
3
TO POWER SUPPLY
EQ3021ES
Legend
TO POWER
SUPPLY
= Power supply
TTT
= Top boiler temperature probe
BTT
= Lower boiler temperature probe
CT
= Battery temperature probe
AT
= Air temperature probe
OT
= Air outlet temperature probe
COMP
= Compressor
E2V
= 2 way electromagnetic valve
HP
= Higher pressure switch
SUT
= Suction temperature probe
FM
= Fan motor
TC
= Trasformer
HT
= Electric heater
MTS
= Overheating protection with manual reset
Controller = LCD control panel
HW11
= Electronic card
EEV
= Electronic expansion valve
BLU
= Blu
WHT
= White
RED
= Red
BLK
= Black
BRN
= Brown
Y/G
= Yellow/Green
48
(Removing the electrical panel cover allows access to the electronic circuit board and to the terminal block connections).
BLU
BLK
C2(2uF)
7
N
FM
WHT
8
RED
OUT3
OUT4
OUT5
5
7
N
6
8
AC-N
RED
BLU
3
L N
TC
12V
Controller
Y/G
BRN BLU
AT：Ambient temperature
BTT：Bottom of tank temperature
COMP：Compressor
CT：Coil temperature
230V~/50Hz
EEV: Electronic expand valve
E2V： Electromagnetic 2 way valve
CAUTION
When using the temperature
sensor (50kOhm STT) for the
solar panel, connect to termi-
nals 5-6 in place of air outlet
temperature probe (OT) and
configure Par. /01=2.
COMP
BLK
CR
CC
CS
WHT
RED
C1
Solar pump/
Low Flow
EEV
5
OUT1
OUT2
HW211
HP
7
8
FM：Fan motor
HT：Heater
HP：High pressure protection
K2：Relay of solar pump
MTS：Mechanism temperature switch
OT：Outlet temperature
SUT：Suction temperature
TC：Transformer
TTT：Top of tank temperature
CODE:20210204-0002
Terminal block connectors
SP = Pompa solare (Par. /01=2)
LFA= Low Air Flow Alarm Output (Par. /01=5)
(contact closed = alarm) 230 V~ Max 2A.
VS =Drain valve Solar
STT = Probe temperature solar thermal panel
ON/OFF = Remote On/Off Input
(closed contact = On)
1
2
3
4
5
6
t
230V
230V
50K
Solar
Solar
t
valve
temp
Alarm
K2
OT/ST
GND
OT/ST
AI06
SUT
GND
SUT
SUT
AI05
5K
CT
GND
CT
CT
AI04
5K
TTT
GND
TTT
TTT
AI03
5K
BTT
GND
BTT
BTT
AI02
5K
AT
GND
AT
AT
AI01
5K
OUT8
2
CN6
OUT7
2
RED
Y/G
RED
Y/G
EN
EN
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