BioCool BIO-30 DAV - Electrical and Communication Wiring; Connection to the electric board; Recommendations for electrical and communication wiring; MODBUS communication connection

ECO Cooling Soluons INSTALLATION GUIDE
ENG
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Each electronic panel has a LED system that indicates the machine is supplied
with power.
The general panel must contain thermomagnetic switches with the expected
In=1,25xImax referred in the UNE .
Connection to the electric board
WATER AND POWER SUPPLY
1. The water must always be clean, and the pressure must be between . to .
Mpa (. kgf/cm2)
2. There should be a valve (DN) near the entrance of the water inlet and a
cleaning duct.
3. Do not use untreated well-water, or low pH osmotic water
4. Ensure that the single phase voltage is / / / //± V, three-phase
voltage is  ±  V.
Water quality
Water type:
• The water supply for the equipment must be clean and from the mains,
guaranteeing a minimum water pressure at the entrance of each equipment.
• Do not use well water because of the high dissolved substances it may contain
(bicarbonates, carbonates, calcium ion, magnesium ion, boron, potassium ion
which tends to form clays...). If this is not possible, the water must be treated
according to the European Directive //CE.
• The temperature of the incoming water must be less than 45 degrees.
• The ph range should be between 6-9.
Hardness:
In very hard waters, a descaler will improve the performance of the equipment by
avoiding lime incrustations.
The water must have a hardness of ºhF, free of boron, salts,
carbonates, bicarbonates and other impurities.
In case the water hardness is considered hard or very hard, the automatic self-
cleaning of the equipment must be programmed at 4 h.
To carry out the electrical installation, the following considerations should be
taken into account:
• First make sure you have made a good connection to the safety box (located
at the boom of the machine as indicated above).
• An electrical sub panel must be made in each installation for the evaporative
unit system.
• Use the electrical wiring in the table above for all installations.
• It is recommended to connect each evaporative unit to each circuit breaker,
complying with current regulations. Each line is sized with the Imáx(A)
according to UNE 20460-5-523:2004
Recommendations for electrical and communication wiring.
Electrical connection
It is recommended to use this type of wiring according to the equipment installed.
This wiring must be on suitable conduit according to local regulations in force and
covered on a tray or cover. Otherwise, RZI-K halogen-free hose should be installed.
MODBUS communication connection
In Smart City Cooler installations with Modbus communication, shielded and
twisted communication cable of the BELDEN brand must be used.
This cable has a shielded wire which must be connected to the RS485 communication
GND, never connected to the electrical earth.
MODEL
TYPE OF ELECTRIC CABLE
BIO-18D
3 x2,5 mm
2
section
BIO-30D
Three-phase cable (N+3F+Earth)
The electrical wiring should NEVER go on the same tray/lid as the
communication one, in any type of BIOCOOL installation.