DORA TECH
90 LT - 120 LT
cod. 3540000800 - Rev. 02 - 09/2023
102
EN
6.9 ELECTRICAL DIAGRAM
CP
(N)
(L)
EMC filter
CN20 CN15
CN26
CN22
CN11-1 CN11-2
CN13
CN10 CN14-1
CN14-2
CN7
CN3
CN23
CN6
CN12
CN9
CN8
CN5
CN4
CN1
CN2
CN27
CN21
CN25
CN19
CN16
R
HGBP
C
EC FAN
TEH
M
Display
Wi-Fi module
BMS
S
YE-GN
L
PE
N
YE-GN
YE-GN
YE-GN
YE-GN
Power supply
230 V~ 50Hz
PE-FAN
PE-CP
PE-TANK SHELL
PE-TANK
YE-GN
CN18
L
N
L
N
L
N
L
N
N
L
N
L
N
L
N
L
N
L
DIG2
P8
P7
P2
P1
P5
P4
P3
DIG1
FUSE
T5AL250V
TTL /
RS485
HTS
CN17
EEV
DIG3
: components not supplied with the unit
fig. 63 - Wiring diagram of the equipment
Description of connections available on the power board
RIF.
DESCRIPTION
BMS / cascade
Supervision / testing / cascade system
CN1
NTC probes for air, defrost and water
CN2
Evaporator inlet and outlet NTC probes, compressor delivery
CN3
Unusable
CN4
Unusable
CN5
digital inputs
CN6
Unusable
CN7
Unusable
CN8
Fan speed adjustment
CN9
Unusable
CN10
Fan power supply
CN11-1
Unusable
CN11-2
Unusable
CN12
Unusable
CN13
Electric supply of the hot-gas defrost valve
CN14-1
Unusable
CN14-2
Unusable
CN15
Compressor power supply
CN16
Power supply of the tank electric heater
CN18
Unusable
CN19
Ground connections
CN20
230 Vac power supply
CN21
Connection for supervision
CN22
Wi-Fi card connection
CN23
User interface connection
RIF.
DESCRIPTION
CN25
Unusable
CN26
Unusable
CN27
Unusable
CP
Compressor
Display
User interface
EC FAN
EC fan
EMC filter
Electromagnetic interference filter
FUSE
Fuse
HGBP
Hot gas bypass valve
HTS
Electric heater safety thermostat
P1
External air inlet NTC temperature probe
P2
Coil NTC temperature probe
P3
Evaporator refrigerant inlet NTC temperature probe
P4
Evaporator refrigerant outlet NTC temperature probe
P5
Compressor refrigerant outlet NTC temperature probe
P7
Tank water NTC temperature probe (upper)
P8
Tank water NTC temperature probe (bottom)
DIG1-DIG2-DIG3
Multifunction digital input
PV/SG1
PV digital input / smart grid digital input 1
TEH
Tank electrical heater
TTL / RS485
TTL / RS485 serial interface
Wi-Fi module
Wi-Fi module