EEVS: Electronic Expansion Valve Synchronization
The EEVS for pR300 is a new communication system between the low temperature plant and the management driver of the electronic expansion valve of the heat exchanger plate. In a cascade system (sub-critical CO2) the low temperature plant can communicate to the driver the refrigerating capacity and it also can modulate the capacity of the vaporiser based on the condensation pressure of the CO2 saving use of additional probes and obtaining a fine and accurate adjustment of the condensation pressure. Traditional over-heating adjustment is evaluated by performing a control of the CO2 condensation pressure trend.
pR300, ideal for any type of application and particularly recommended for sub-critical cascade CO2 - based plants, thanks to the integration of the electric expansion valves for the control of the plate heat exchangers.
pR300 is an improvement of the standard version based on increase of the serial lines for management of more integration devices, USB ports, integrated driver and I/O customisability; more detailed:
1 Performance: Improved HW Platform, both in terms of calculation speed and memory space. Features that ensure elaboration of instantaneous working conditions, management of more serial lines and up to 8 languages inside the same tool.
2 USB port: using a normal data memory device you can copy the enitre tool configuration, and easily transfer it to other tools with the same field of application.
3 EEV inegrated driver: Possibility to directly manage up to 2 stepper electronic expansion valves ensuring a reduction of the amount of cables used inside the panel, of the overall size of control system, optimizing the machine performance increasing the interaction between the refrigeration unit and the expansion valves and the plant safety thanks to ultracap technology.
4 I/O Flexibility: Thanks to the new "Chip I/O" technology the flexibility of the inputs and the reading accuracy is increased. Each analogue input channel can be independently configured as probe NTC, PTC, PT100, PT500, PT1000, 0/1V, 0/5V, 0/10V, 0/20mA, or 4/20mA, clean digital input (standard and fast).
pR300 can interface with the intelligent control system for energy saving pLoads (PLO550*30U*00); these two control systems allow you to limit or modulate the supplied refrigerating power, optimizing the electrical consumption as to avoid absorption peaks and maintaining at the same time proper functioning of the refrigerating unit.
- Quick Guide * Entries are ordered by date
Code Description Language Date * Release Code +040010030 Description Gestione gas custom nel pRack pR300 Gas custom management on pRack pR300 Language ENG FRE GER ITA SPA Date 26/06/2019 Release 1.2
- Technical Leaflets * Entries are ordered by date
Code Description Language Date * Release Code +0500067IE Description pRack pR300 Centrale frigorifera pRack / Rack controller pRack Language ENG ITA Date 20/02/2013 Release 1.0
- 2D/3D drawings * Entries are ordered by date
Code Description Language Date * Release Code 2d-3d pRack small pGD1 built-in Description 2D-3D drawings Language ALL Date 22/06/2015 Release R0
- Manuals * Entries are ordered by date
Code Description Language Date * Release Code +030220675 Description Software update procedure for pR300 and pR300T Operation and configuration Language ENG FRE GER ITA SPA Date 26/05/2017 Release 1.1 Code +0300025EN Description pRack pR300 compressor rack controller Language ENG Date 26/05/2017 Release 1.4 Code +0300025FR Description pRack pR300 commande pour centrales frigorifiques Language FRE Date 26/05/2017 Release 1.4 Code +0300025ES Description pRack pR300 controlador para central frigorífica Language SPA Date 26/05/2017 Release 1.4 Code +030220735 Description EVD EVO driver management with pRack Operation and configuration Language ENG ITA Date 19/05/2016 Release 1.0 Code +030220575 Description Floating suction & Smooth lines Plug-in PVPRO per centrali e utenze di refrigerazione Function for pRack application, MPXPRO and PVPRO Language ENG FRE GER ITA SPA Date 04/12/2014 Release 1.1 Code +030220570 Description Safe restore Plug-in PVPRO per centrali di refrigerazione Function for pRack application and PVPRO Language ENG FRE GER ITA SPA Date 04/12/2014 Release 1.1
- Compendium * Entries are ordered by date
Code Description Language Date * Release Code +4000038ES Description Todo para las aplicaciones retail de CO2 Language SPA Date 02/03/2015 Release 1.0 Code +4000038FR Description Tout pour les applications de la distribution au détail CO2 Language FRE Date 02/03/2015 Release 1.0
- Success Story * Entries are ordered by date
Code Description Language Date * Release Code +4000069EN Description First METRO Transcritical CO2 store in China Efficiency and reliability with CAREL Retail sistema Language ENG Date 26/03/2018 Release 1.0
- Brochure * Entries are ordered by date
Code Description Language Date * Release Code +3000176EN Description On show at Chillventa 2018 Language ENG Date 01/10/2018 Release 1.0 Code +3000008FR Description pRack: solution d'avant-gard pour les centrales frigorifiques Language FRE Date 18/11/2014 Release 3.2 Code +3000008ES Description pRack platform solución de vanguardia para centrales frigoríficas Language SPA Date 18/11/2014 Release 3.2 Code +3000008EN Description pRack platform: the complete solution for compressor racks Language ENG Date 18/11/2014 Release 3.2