Installation; Programming Key (Copy Set-Up) - Carel ir33+ small wide User Manual

ENG
Thermostats with 2/3 relays: compressor, defrost, AUX
PBEVY(0,6)S(A,L)
Thermostats with 3 relays: compressor, defrost, evap. fans
PBEVF(0,6)S(N,C)
Thermostats with 3/4 relays: compressor, defrost, evap. fans, AUX
PBEVC(0,6)S(N,C)
Key
L Line
N Neutral
R1/R2/R3/R4/R5 Digital output 1/2/3/4/5 (relay 1/2/3/4/5)
AUX Auxiliary relay
PROBES Probe 1/Probe 2
DI1/DI2 Digital input 1/ Digital input 2

2.8 Installation

To install the controller, proceed as follows, with reference to the wiring
diagrams shown in the previous paragraphs:
1.
connect the probes and power supply: the probes can be installed up
to a maximum distance of 10 m from the controller, using shielded
cables with a minimum cross-section of 1 mm2. To improve immunity
to disturbance, use probes with shielded cables (connect only one end
of the shield to the earth on the electrical panel);
2. program the controller: as shown in the chapters "Commissioning" and
"User interface";
3.
connect the actuators: the actuators should only be connected after
having programmed the controller. Carefully check the maximum relay
capacities, as indicated in the "technical specifi cations";
4.
serial network connection: all controllers are fi tted with a serial
connector for connection to the supervisor network via the serial
interface (IROPZ485*0). The secondary of the transformers that supply
the controllers must not be earthed. If connection to a transformer
with earthed secondary winding is required, an insulating transformer
must be installed in between.
Important: a separate transformer must be used for each controller,
- NEVER connect multiple controllers to the same transformer.
ir33plus +0300028EN rel. 1.1 - 05.05.2017
Fig. 2.an
Fig. 2.ao
Fig. 2.ap
Warnings: avoid installing the controller in environments with the
following characteristics:
•
relative humidity greater than 90% non-condensing;
•
strong vibrations or knocks;
•
exposure to continuous water sprays;
•
exposure to aggressive and polluting atmospheric agents (e.g.: sulphur
and ammonia gases, saline mist, smoke) which may cause corrosion
and/or oxidation;
•
strong magnetic and/or radio frequency interference (for example ,
near transmitting antennae);
•
exposure to direct sunlight and the elements in general.
The following warnings must be observed when connecting the
controllers:
•
incorrect connection of the power supply may seriously damage the
controller;
•
use cable ends suitable for the corresponding terminals. Loosen each
screw and insert the cable ends, then tighten the screws and gently
pull the cables to check their tightness. When tightening the screws,
do not use automatic screwdrivers, rather adjust tool tightening
torque to less than 0.5Nm;
•
separate as much as possible (by at least 3 cm) the probe signal and
digital input cables from inductive loads and power cables, to avoid
any electromagnetic disturbance. Never lay power cables and probe
cables in the same cable conduits (including those for the electrical
panels). Do not install the probe cables in the immediate vicinity of
power devices (contactors, circuit breakers or the like). Reduce the
length of the sensor cables as much as possible, and avoid spirals
around power devices;
•
only use IP67 guaranteed probes as end defrost probes; place the
probes with the vertical bulb upwards, so as to facilitate drainage
of any condensate. Remember that thermistor temperature probes
(NTC) have no polarity, so the order the ends are connected in is not
important.
Important: for 12 Vac and 12/24 Vac versions. When connecting a
series of units to the same timer, insulate all the contacts (digital inputs)
galvanically, inserting an intermediate relay for each contact.
Cleaning the controller
When cleaning the controller do not use ethanol, hydrocarbons (petrol),
ammonia and by-products. Use neutral detergents and water.

2.9 Programming key (copy set-up)

Programming key IROPZKEY00/A0
The programming key can load up to 7 diff erent parameter confi gurations
onto the controller (the controller operating parameters plus 6 sets
of customisable default parameters). The keys are plugged into the
connector (4 pin AMP) available on the controllers. All the operations can
be performed with the controller off .
The functions are selected by setting the two dipswitches, accessible by
removing the battery cover.
14
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