Cascade Wiring Diagram - Ferroli EGEA TECH 200 HT Manual

EGEA TECH
8.10

CASCADE WIRING DIAGRAM

It is possible to connect up to 8 units in cascade. To create the cascade,
n°1 "TTL-RS485 serial interface kit" is required for each unit.
Kit components:
1) serial interface board housed in a plastic casing designed for fixing to
the base of the heat pump
2) blue connector for connection to the cable already installed on the unit
3) mammoth connecto\r with screw terminals for serial connection (cables
not supplied) between the units in cascade
- fixing screws to the base of the heat pump
- assembly instruction
1
fig. 70 ­ TTL­RS485 serial interface kit
The TTL-RS485 interface has two cables, one with a
mammoth end and the other with a blue connector.
As indicated in the wiring diagram "fig. 70 - TTL-RS485 serial
interface kit", the mammut is used for parallel connection of se-
veral units; the blue connector must be connected to the corre-
sponding blue connector coming out of the electrical panel of
the machine.
NOTE
For correct parallel connection of several units, it is recom-
mended to use twisted and shielded cables suitable for RS485
transmission with a section not less than 0.34 mm
The following diagram ("fig. 70 - TTL-RS485 serial interface kit")
shows an example of cascade connection with 3 units.
200 HT - 260 HT
N
L
PE
Power supply
230 V~ 50Hz
PE-FAN
PE-CP
PE-TANK SHELL
PE-TANK
2
N
L
PE
B
A
Power supply
230 V~ 50Hz
GND
3
PE-PR
PE-FAN
PE-CP
PE-TANK SHELL
PE-TANK
N
L
PE
Power supply
230 V~ 50Hz
.
2
PE-PR
PE-FAN
PE-CP
PE-TANK SHELL
PE-TANK
cod. 3540000420 - Rev. 03 - 09/2023
TEH
CP VS
EMC filter
S
C
R
HTS
(N)
N L
N N
L
CN18
L L
YE-GN
CN16
CN20 CN15 CN11-1
YE-GN
(L)
YE-GN FUSE
YE-GN T5AL250V
YE-GN
CN19
YE-GN
YE-GN
YE-GN
PE-PS
CN25
PE-PR
CN3 CN27 CN2
PT1000
P5
P4
P3
TEH
CP
EMC filter
S
C
R
HTS
(N)
N
L N
N
L
CN18
L L
YE-GN
CN16
CN20 CN15
CN11-1
YE-GN (L)
YE-GN FUSE
YE-GN T5AL250V
YE-GN
CN19
YE-GN
YE-GN
YE-GN
PE-PS
CN25
CN3 CN27 CN2
P8
P5
P4
P3
TEH
CP
EMC filter
S
C
R
HTS
(N)
N L
N N
L
CN18
L L
YE-GN
CN16
CN20 CN15 CN11-1
YE-GN
(L)
FUSE
YE-GN
YE-GN T5AL250V
YE-GN
CN19
YE-GN
YE-GN
YE-GN
PE-PS
CN25
CN3 CN27 CN2
P8
P5
P4
P3
PS HGBP
PR
STS
N N
N
N L N
L
L L
CN11-2 CN13 CN26 CN10
N
CN14-1
L
VC
CN14-2
CN17
EC FAN
M
CN8
CN9
CN12
CN23 Display
CN22
Wi-Fi module
CN21
CN6 CN7
CN1 CN4 CN5
Cable installed
in the unit
P8
DIG3
P7 HPS
DIG2
MASTER
P2
P1 DIG1
HGBP
N N N
N L N
L L L
CN11-2 CN13 CN26 CN10
N
CN14-1
L
VC
CN14-2
CN17
EC FAN
M
CN8
CN9
CN12
CN23 Display
CN22
Wi-Fi module
CN21
CN6 CN7
CN1 CN4 CN5
Cable installed
in the unit
DIG3
P7
HPS
DIG2
SLAVE
P2
P1
DIG1
HGBP
N N
N
N L N
L
L L
CN11-2 CN13 CN26 CN10
N
CN14-1
L
VC
CN14-2
CN17
EC FAN
M
CN8
CN9
CN12
CN23 Display
CN22
Wi-Fi module
CN21
CN6 CN7
CN1 CN4 CN5
Cable installed
in the unit
DIG3
P7 HPS
SLAVE
DIG2
P2
P1 DIG1
fig. 71 ­ Cascade wiring diagram
2 1 3
TTL to
RS485
Serial interface
2 1 3
TTL to
RS485
Serial interface
2 1 3
TTL to
RS485
Serial interface
EN
181