5
ENG
pRack PR300T +0300018EN rel. 1.5 - 02.05.2017
1. INTRODUCTION
1.1 Main
features
pRack pR300T is the integrated CAREL solution for control and
management of CO
2
compressor racks.
The main features and compressor management characteristics of pRack
pR300T are listed below.
1.1.1
pR300T functionality list
Main features
Possibility of management integrated in a single control for
the medium temperature and low temperature line and the
high pressure stage.
Management of the high pressure valve (HPV)
Management of the receiver pressure regulating valve
(RPRV)
Valves management via external or built-in (PRK30TD*)
driver through fi eldbus communication port or via external
driver in position mode in 0…10V
Integration between HPV and receiver pressure
Accessory functions (pre-positioning, minimum and
maximum values diff erentiated by machine ON and OFF,
maximum distance from the setpoint, ...)
Oil cooler
Oil receiver and oil injection
Heat Reclaim
Integration between heat reclaim and HPV and RPRV valve
management
Double suction line and one high pressure stage
Up to 16 fans for condensing line
Inverter regulation on the fi rst compressor and on the fi rst fan
Generic functions easily confi gurable (ON/OFF, modulations,
alarms, scheduler)
Hardware
S, M, D, L version (based on pCO5+ hardware)
External display (pGDE) or built-in display
Compressors
Scroll, reciprocating, digital scroll compressors management
Up to 12 piston compressors per line, a maximum of 4
diff erent sizes
Up to 4 alarms per compressor
Inverter management, even with modulation inside the
dead zone
Pump down
Control of overheating in suction
Lingue
Italian, English, German, French, Spanish, Russian,
Portoguese, Swedish
Unit of measure
Temperature: °C, °F
Pressure: barg, psig (all pressure values are also converted
to temperature)
Date format settable between: dd/mm/yy, mm/dd/yy,
yy.mm.dd
Control
Proportional band (P, PI) available for compressors and fans
Neutral zone available for compressors and fans
Compressor
rotation
FIFO
LIFO
Timed
Fixed (the ON/OFF order can be set as required)
Scheduling by
calendar
Scheduling available: heating/cooling, 4 daily time bands,
5 special periods (e.g.: closing period), 10 special days (e.g.:
holidays)
Schedulable functions: set point compensation for
compressors and fans, split condenser (heating/cooling
only), anti noise, heat recovery, generic functions
Setpoint
Compensation from digital input, from scheduling, fl oating
based on supervisor parameter (compressors) or outside
temperature (fans)
Prevent
High pressure, including activation of heat recovery or
ChillBooster
Alarms
Automatic and manual management
Confi gurable compressor alarms
Double Signal on digital outputs for high or low priority
alarms
Log from application
Supervisor
protocol
Carel Modbus
£
Tab. 1.a
1.2 Components and accessories
The pRack pR300T is available in 4 hardware sizes listed in the table
(for the detailed description of each size, electrical characteristics and
installation, refer to Chapter 2):
Hardware sizes:
Size
Available
analog inputs
Available
digital
inputs
Available
analog
outputs
Available
digital
outputs
Small 5
(*)
8
4
8
Medium
8 (*)
14
4
13
Driver
8(*) + 4
14+2
4
13
Large
10 (*)
18
6
18
Tab. 1.b
(*) can also be used as digital inputs
For each size the following versions are available:
•
with built-in terminal, without terminal
All pRack pR300T models are equipped with:
•
integrated RS485 serial interface
•
anthracite gray plastic cover
•
connector kit
•
USB.
pRack pR300T models
Size
Code
Description
small
PRK30TS0E0
pRack PR300T small, USB, no display, BMS/FBUS
OPTO, 2 SSR, connector kit
PRK30TS3E0
pRack PR300T small, USB, display built-in, BMS/
FBUS OPTO, 2 SSR, connector kit
PRK30TS0F0
pRack PR300T small, USB, no display, BMS/FBUS
opto, connector kit
PRK30TS3F0
pRack PR300T small, USB, display built-in, BMS/
FBUS opto, connector kit
PRK30TS3FK
pRack PR300T small, USB, external display, BMS/
FBUS opto, connector kit
medium
PRK30TM0E0
pRack PR300T medium, USB, no display, BMS/FBUS
OPTO, 2 SSR, connector kit
PRK30TM3E0
pRack PR300T medium, USB, display built-in, BMS/
FBUS opto, 2 SSR, connector kit
PRK30TM0F0
pRack PR300T medium, USB, no display, BMS/
FBUS opto, connector kit
PRK30TM3F0
pRack pR300T medium, USB, display built-in, BMS/
FBUS opto, kit connettori
PRK30TM3FK
pRack pR300T medium, USB, external display,
BMS/FBUS opto, kit connettori
driver
PRK30TD0E0
pRack PR300T medium, EVD EVO embedded for 2
UNIV. EXV, USB, no display, BMS/FBUS opto, 2 SSR,
connector kit
PRK30TD3E0
pRack PR300T medium, EVD EVO Eembedded for 2
UNIV. EXV, USB, display built-in, BMS/FBUS opto, 2
SSR, connector kit
PRK30TD0F0
pRack PR300T medium, evd evo embedded for
2 univ. EXV, USB, no display, BMS/FBUS opto,
connector kit
PRK30TD3F0
pRack PR300T medium, evd evo embedded for
2 univ. EXV, USB, display built-in, BMS/FBUS opto,
connector kit
PRK30TD3FK
pRack PR300T medium, evd evo embedded for 2
univ. EXV, USB, external display, BMS/FBUS opto,
connector kit
large
PRK30TL0E0
pRack PR300T large, USB, no display, BMS/FBUS
OPTO, 6 SSR, connector kit
PRK30TL3E0
pRack PR300T large, USB, display built-in, BMS/
FBUS opto, 6 SSR, connector kit
PRK30TL0F0
pRack PR300T large, USB, no display, BMS/FBUS
opto, connector kit
PRK30TL3F0
pRack pR300T large, USB, display built-in, BMS/
FBUS opto, connector kit
PRK30TL3FK
pRack pR300T large, USB, external display, BMS/
FBUS opto, connector kit
Tab. 1.c
Page 54 of 172
Copyright HPL March 2021
P4114S Rev 03
Summary of Contents for Hubbard GCU2040PXB1
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