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Verfügbare Sprachen
8.11
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
A: brown
B: blue
GND: yellow
fig. 73 - 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. 74 - Cascade wiring dia-
gram", the mammut is used for parallel connection of several
units; the blue connector must be connected to the correspon-
ding 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. 74 - Cascade wiring diagram")
shows an example of cascade connection with 3 units.
EN
190
EGEA TECH
N
EMC filter
L
PE
Power supply
230 V~ 50Hz
YE-GN
YE-GN
YE-GN
YE-GN
YE-GN
YE-GN
YE-GN
YE-GN
PE-PS
PE-PR
PE-FAN
PE-CP
PE-TANK SHELL
PE-TANK
2
N
EMC filter
L
PE
B
A
Power supply
230 V~ 50Hz
YE-GN
GND
YE-GN
3
YE-GN
YE-GN
YE-GN
YE-GN
YE-GN
YE-GN
PE-PS
PE-PR
PE-FAN
PE-CP
PE-TANK SHELL
PE-TANK
N
EMC filter
L
PE
Power supply
.
2
230 V~ 50Hz
YE-GN
YE-GN
YE-GN
YE-GN
YE-GN
YE-GN
YE-GN
YE-GN
PE-PS
PE-PR
PE-FAN
PE-CP
PE-TANK SHELL
PE-TANK
cod. 3540000410 - Rev. 03 - 09/2023
200 LT - 260 LT -200 LT-S - 260 LT-S
TEH
CP
VS
PS
S
C
R
HTS
STS
(N)
N
L
N
N
L
N
L
N
CN18
L
L
CN16
CN20 CN15
CN11-1
CN11-2
(L)
FUSE
T5AL250V
CN19
CN25
CN3
CN27
CN2
CN1
CN4
P8
PT1000
P5
P7
P4
P2
P3
P1
TEH
CP
S
C
R
HTS
(N)
N
L
N
N
L
N
L
N
CN18
L
L
CN16
CN20 CN15
CN11-1
CN11-2
(L)
FUSE
T5AL250V
CN19
CN25
CN3
CN27
CN2
CN1
CN4
P8
P5
P7
P4
P2
P3
P1
TEH
CP
S
C
R
HTS
(N)
N
L
N
N
L
N
L
N
CN18
L
L
CN16
CN20 CN15
CN11-1
CN11-2
(L)
FUSE
T5AL250V
CN19
CN25
CN3
CN27
CN2
CN1
CN4
P8
P5
P7
P4
P2
P3
P1
fig. 74 - Cascade wiring diagram
HGBP
PR
N
N
N
L
L
L
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
CN5
Cable installed
in the unit
DIG3
HPS
DIG2
MASTER
DIG1
HGBP
N
N
N
L
L
L
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
CN5
Cable installed
in the unit
DIG3
HPS
DIG2
SLAVE
DIG1
HGBP
N
N
N
L
L
L
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
CN5
Cable installed
in the unit
DIG3
HPS
SLAVE
DIG2
DIG1
2 1
3
TTL to
RS485
Serial interface
2 1
3
TTL to
RS485
Serial interface
2 1
3
TTL to
RS485
Serial interface
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