General Connection Diagram - Carel Heos User Manual

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2.7 General connection diagram

Inverter 12/16A
L1/L L2/N L3
K
Fuse or
High press
MCB
switch
L N
PAY ATTENTION
TO THE POWER SUPPLY!
Power supply
- for UP2A*: 230 Vac 50/60 Hz, +10%/-15%;
- for UP2B*: 24 Vac +10%/-15% 50/60 Hz,
28 to 36 Vdc +10%/-15%;
Air OFF (supply) probe (CAREL NTC)
Defrost probe (CAREL NTC)
Air ON (return) probe (CAREL NTC)
Suction temp. probe (CAREL NTC)
LP Probe (*)
Discharge temp. probe (CAREL NTC-HT)
(*)
HP Probe
Analog Input
Analog Output (0-10V)
Digital Input (free voltage)
(*) The 4-20 mA pressure probes are connected as follows: white to Ux and black to +Vdc, green not used
(**) 230 Vac SSR output, maximum switchable power 15VA
Important: Class A software: the safety devices providing overload and high pressure protection must control the compressor directly, and consequently need
to be wired in series with compressor contactor control signal. For the type of cable to use, refer to power+ manual (cod. +0300048IT).
I/O selection table
Par. Description (Analogue inputs)
/FA Air outlet temperature (default U1)
/Fb Defrost temperature (default U2)
/Fc Air intake temperature (default U3)
/P3 Condensing pressure (default U7)
/P4 Suction pressure (default U5)
/P1 Discharge temperature (default U6)
/P2 Suction temperature (default U4)
/Fq Liquid temperature
/FI Room temperature
/FL Room humidity
/FM Glass temperature
/FW Condenser water inlet temperature
/FY Condenser water outlet temperature
/FG Auxiliary probe 1
/FH Auxiliary probe 2
Heos +0300078EN - rel. 1.6 - 23.11.2017
U V W
+ -
GND
1 2 3 4 5 6 7 8 9 10
PE
M
3 PTC
to HEOS controller
HEOS configuration
G
G0
J1
RS485 serial card
supervisory system
U1
U2
J2
U3
GND
U4
White
U5
J3
+Vdc
Black +5VR
Green GND
U6
White
U7
J4
+Vdc
Black +5VR
Green GND
U8
U9
U10
J5
+Vdc
+5VR
GND
GND
(A01) Y1
J6
(A02) Y2
(A03) Y3
J8
DI1
DI2
J7
DI3
DI4
GND
Par. Description (Digital inputs)
/b1 Remote alarm
/b2 Delayed remote alarm
/b3 Enable defrost
/b4 Start network defrost
/b5 Door switch
/b6 Remote ON/OFF
/b7 Curtain/light switch - day/night
/b8 Continuous cycle
/b9 Cold room maintenance
/bA Showcase cleaning
/bb Inverter alarm
/bC Lights
/A9 Virtual input
/bl Dual temperature
Inverter 10A
PE
L
N
K
High press
switch
Fuse or
MCB
Klixon
L N
2
1
Vout
ON OFF
RX-/TX-
J9
RX+/TX+
DIP2=OFF
J10
GND
DIP1=ON
RX-/TX-
J11
RX+/TX+
GND
J12
to connect
RX-/TX-
J14
J13 RX+/TX+
GND
N01
Alarm
J16
NC1
C1
Out2
J17
C2
Out3
J18
C2
Out4
J19
C2
Out5
J20
C2
C2
J21
V-IN
N06
J22
C6
N07
J23
C7
N08
J24
Liquid
C8
Injection
(optional)
Fig. 2.m
12
-
DC
+DC
+ -
GND
U V W
1 2 3 4 5 6 7
PTC
M
3
to HEOS controller
to power+
pLD Terminal
Expansion
Valve
BUS pLAN for
Master/Slave
pGDe Terminal
(**)
Rail Heaters
L N
Digital Output
(POWERED)
Evap Fan
Lights
Digital Output
Defrost
(NOT POWERED)
Par. Description (Analogue outputs)
/LA EC evaporator fans
/Lb Anti-sweat heaters
/Lc Water control valves
/Ld Condenser pump
/LE Auxiliary output
/LF Water-cooled condenser output
/LG Air-cooled condenser output
Par. Description (Digital outputs)
/EA Fans 1 (default DO6)
/EC Lights (default DO7)
/Ed Defrost heaters (default DO8)
/EE Alarms
/EF Auxiliary output
/EG Anti-mist heaters
/EM Liquid injection solenoid
/EN Curtain contact
/Eo ON/OFF compressor
/Er Inverter valve output
/ES Fan/condenser output
/EY Dual temperature output
Klixon
pLD PRO