Carel Heez, Technical Leaflet

Page: 52 / 68

20 Heez +050002745 rel. 1.2 - 16.11.2021
ENG
R ef. C onnector D escription
10 J10 (#)
300052_134_R01
ID5
ID4
ID3
VL B6
B5
J 10
GND
+V
ID3 Digital input 3: not used
ID5 Digital input 5: not used
+V Power supply to 4-20 mA active probes
B6 Universal probe (optional)
VL Not used
ID4 Digital input 4: not used
GND Common reference for probes, digital inputs
B5 Pressure probe (optional)
11 J11
300052_12 9 _R01
ID1
ID2
Y1
Y2 B1 B3
B2 B4
GND
J 11
+5VREF
+5VREF 5 V: power to ratiometric probes
B3 Suction temperature probe
B1 Suction temperature probe
Y1 (****) 0-10 V control for evaporator fan (AC)
ID1 Digital input 1: door switch
GND Common reference for probes, digital inputs
B4 Evaporation pressure probe
B2 Defrost probe
Y2 (****) 0-10 V control for evaporator fan (AC)
ID2 Digital input 2: not used
12 J12 C1/2 Common for relays 1, 2
NO1 Digital output (relay) 1
NO2 Digital output (relay) 2
13 J13 C3 Common for relay 3
NO3 Digital output (relay) 3
14 J14 E2V valve connector
Tab. 3.c
(#) On models where featured. (*) The earth connections inside the controller are electrically connected to each other and to PE; (**) J3/J4:
terminals for modulating condenser/evaporator fan respectively, Vdc power supply and directly driven by the controller; (***) Voltage-free digital
input. If not used, short-circuit with a jumper; (****) Y1/Y2: outputs for controlling the externally-powered Vac modulating evaporator/condenser
fans respectively, driven by the controller.
Caution
•
observe the requirements of the Low Voltage and Electromagnetic Compatibility directives for sizing the protection
devices upstream of the controller and correct earthing;
•
in the European Union, all units that incorporate the controller must comply with the Machinery Directive 2006/42/
EC. Specifically, the manufacturer of the unit is responsible for installing a main switch and conformity to standard
EN 60204-1;
•
for a fixed installation in accordance with IEC 61800-5-1, a device is required that interrupts the circuit between the
power supply and the controller;
•
only use hard-wired power connections; the controller must be earthed: the earth wire must be sized for the
maximum fault current.
3.6 Conformity to EMC standards
Heez is designed in compliance with the requirements of European EMC standards. All models are fitted with an
internal filter that reduces conducted emissions to the power supply line. It is the installer’s responsibility to ensure
that the device or system that Heez is incorporated into is compliant with the standards in force in the country in
which it is used. Conformity to EMC standards requires compliance with the instructions shown under “Electrical
connections” and, as this also depends on the layout of the wiring, needs to be verified on the final equipment, as
required by the relevant product standard. As regards the general EMC guidelines, strictly observe the instructions
shown under “Electrical connections“ and in the user 0300052EN, downloadable, even prior to purchase,
from www.carel.com.