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Idiomas disponibles
Idiomas disponibles
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 - TTL-RS485 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
2
B
A
GND
3
2
.
cod. 3540000420 - Rev. 03 - 09/2023
TEH
CP
VS
PS
HGBP
PR
S
C
R
HTS
STS
)
N
L
N
N
N
N
L
N
L
N
N18
L
L
L
L
CN16
CN20 CN15
CN11-1
CN11-2
CN13
CN26
FUSE
T5AL250V
CN17
CN25
CN3
CN27
CN2
CN1
CN4
CN5
P8
DIG3
PT1000
P5
P7
DIG2
P4
P2
P3
P1
DIG1
TEH
CP
HGBP
S
C
R
HTS
N
L
N
N
N
N
L
N
L
N
18
L
L
L
L
CN16
CN20 CN15
CN11-1
CN11-2
CN13
CN26
FUSE
T5AL250V
CN17
CN25
CN3
CN27
CN2
CN4
CN5
CN1
P8
DIG3
P5
P7
DIG2
P4
P2
P3
P1
DIG1
TEH
CP
HGBP
S
C
R
HTS
N
L
N
N
N
N
L
N
L
N
18
L
L
L
L
CN16
CN20 CN15
CN13
CN11-1
CN11-2
CN26
FUSE
T5AL250V
CN17
CN25
CN3
CN27
CN2
CN1
CN4
CN5
P8
DIG3
P5
P7
DIG2
P4
P2
P3
P1
DIG1
fig. 71 - Cascade wiring diagram
N
L
CN10
N
CN14-1
L
VC
CN14-2
EC FAN
M
CN8
CN9
CN12
CN23
Display
2 1
CN22
Wi-Fi module
CN21
TTL to
CN6
CN7
RS485
Cable installed
Serial interface
in the unit
HPS
MASTER
N
L
CN10
N
CN14-1
L
VC
CN14-2
EC FAN
M
CN8
CN9
CN12
CN23
Display
2 1
CN22
Wi-Fi module
CN21
TTL to
CN6
CN7
RS485
Cable installed
Serial interface
in the unit
HPS
SLAVE
N
L
CN10
N
CN14-1
L
VC
CN14-2
EC FAN
M
CN8
CN9
CN12
CN23
Display
2 1
CN22
Wi-Fi module
CN21
TTL to
CN6
CN7
RS485
Cable installed
Serial interface
in the unit
HPS
SLAVE
EN
3
3
3
181
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