HVAC & Refrigeration Control Solution – CAREL PCO3000EL0 | pCO3 Series
Where This Product Is Used
The CAREL PCO3000EL0 is a programmable logic controller from the pCO3 series, purpose-built for precision climate control and refrigeration management in demanding industrial and commercial environments. Typical deployment sites include:
- Commercial Refrigeration Systems – Supermarket display cases, cold rooms, blast freezers, and multi-compressor rack systems requiring coordinated capacity control.
- HVAC Air Handling Units (AHU) – Central air handling units in hospitals, data centers, cleanrooms, and large commercial buildings where temperature and humidity must be maintained within tight tolerances.
- Chiller & Heat Pump Plants – Water-cooled and air-cooled chillers, heat pumps, and condensing units in industrial process cooling applications.
- Food & Beverage Processing – Fermentation chambers, aging rooms, and cold chain logistics facilities requiring GMP-compliant temperature logging.
- Pharmaceutical Cold Storage – GDP-compliant cold rooms and stability chambers where validated control and audit trails are mandatory.
- Industrial Process Cooling – Injection molding machines, laser cutting systems, and CNC machining centers with integrated coolant temperature control loops.
Technical Specifications
| Parameter | Value |
|---|---|
| Part Number | PCO3000EL0 |
| Series | pCO3 |
| Manufacturer | CAREL Industries S.p.A. |
| Controller Type | Programmable Logic Controller (PLC) – HVAC/R |
| Power Supply | 24 VAC / 24–48 VDC |
| Digital Inputs | 8 × universal digital inputs |
| Analog Inputs | 4 × universal analog inputs (NTC / 0–10 V / 4–20 mA) |
| Digital Outputs | 6 × relay outputs (SPDT) |
| Analog Outputs | 2 × analog outputs (0–10 V) |
| Communication Ports | RS-485 (BACnet MS/TP, Modbus RTU), pLAN, optional LAN/BACnet IP |
| Display Interface | Compatible with pGD1 / pGDE terminal (sold separately) |
| Operating Temperature | 0 °C to +50 °C |
| Storage Temperature | -20 °C to +70 °C |
| Humidity | 5% to 95% RH non-condensing |
| Protection Rating | IP20 (panel-mount) |
| Mounting | DIN rail (EN 60715) |
| Certifications | CE, UL, cUL, EAC |
Why Engineers Specify This Model
- Universal Analog Inputs – Each analog input is software-configurable for NTC thermistor, 0–10 V, or 4–20 mA signals, eliminating signal conditioning modules and reducing panel wiring complexity.
- pLAN Network – Allows up to 32 pCO controllers to share I/O and coordinate compressor sequencing without a separate PLC gateway, critical for multi-circuit rack systems.
- BACnet & Modbus Native – Direct integration into BMS platforms (Siemens Desigo, Honeywell EBI, Johnson Controls Metasys) without third-party protocol converters.
- CAREL Application Library – Pre-validated application code for standard refrigeration and HVAC sequences reduces custom programming risk and accelerates FAT/SAT cycles.
- Compact DIN-Rail Form Factor – Fits standard 35 mm DIN rail in IEC 61439-compliant control panels; no proprietary backplane required.
- Long Product Lifecycle – CAREL’s documented 10+ year production commitment supports spare-parts planning for facilities with 15–20 year asset lifecycles.
Complete System Bill of Materials
- PCO3000EL0 – Main controller (this unit)
- PGDE0000F0 / PGD1000F00 – Local operator display terminal
- PCO100UPS0 – UPS module for power-fail data retention
- CVSTDUTTL0 – USB programming key for application upload/download
- NTC001HF00 / NTC001HP00 – Temperature probes for suction, discharge, and ambient measurement
- RS-485 shielded cable – For BACnet MS/TP or Modbus RTU field bus wiring
- 24 VAC Class 2 transformer – Dedicated power supply per CAREL wiring guidelines
- DIN rail terminal blocks – Phoenix Contact or equivalent, 2.5 mm² rated
Compliance & Industry Standards
- CE Marking – EU Low Voltage Directive 2014/35/EU and EMC Directive 2014/30/EU
- UL 916 – Listed for Energy Management Equipment (USA/Canada)
- EN 60730-1 – Automatic electrical controls standard
- BACnet – ASHRAE 135 / ISO 16484-5 compliant communication
- Modbus RTU – Modbus Application Protocol Specification V1.1b3 compliant
- RoHS 2 – Directive 2011/65/EU compliant; lead-free construction
- REACH – No SVHC substances above 0.1% w/w threshold
Quality Assurance & Sourcing
- Authorized Supply Chain – Units sourced from CAREL-authorized distributors and verified OEM channels. No gray-market or refurbished stock listed without explicit disclosure.
- Pre-Shipment Inspection – Visual inspection for seal integrity, holographic CAREL label verification, and packaging condition before dispatch.
- Traceability – Batch/lot numbers and date codes recorded at intake; available upon request for warranty and compliance documentation.
- Warranty – 12-month warranty against manufacturing defects. DOA claims processed within 5 business days.
- Export Compliance – All shipments comply with CN MOFCOM and EU Dual-Use Regulation 2021/821.
How to Source This Part
- Add to Cart – For standard stock orders. Lead time displayed on the product page in real time.
- Request a Quote (RFQ) – For orders of 3+ units or OEM project pricing, email support@konmask.com with your project BOM and required delivery date.
- Technical Pre-Sales – Our engineering team can review your application schematic and confirm compatibility before purchase.
- Expedited Shipping – DHL Express, FedEx IP, and UPS Worldwide Expedited available for emergency replacements. Contact us before checkout.
- Payment Terms – T/T (bank transfer), PayPal, and credit card accepted. Net-30 terms available for qualified institutional buyers upon credit approval.
Application-Specific FAQ
Q: Is the PCO3000EL0 compatible with CAREL’s supervisory software (PlantVisor / Boss)?
A: Yes. The controller communicates natively via RS-485 Modbus RTU or BACnet MS/TP, both supported by PlantVisor PRO and Boss platforms. No additional gateway hardware is required.
Q: Can this controller run custom application code, or is it firmware-locked?
A: The pCO3 series is fully programmable using CAREL’s 1tool / PCO Manager IDE (IEC 61131-3 compliant). The PCO3000EL0 ships without a pre-loaded application; your OEM application must be uploaded via the USB programming key (CVSTDUTTL0).
Q: What is the difference between PCO3000EL0 and PCO3000BA0?
A: The EL0 suffix denotes the standard I/O configuration with built-in RS-485 port. The BA0 variant includes a built-in BACnet IP (Ethernet) port. Specify EL0 for RS-485-only BMS integration; specify BA0 when direct Ethernet/IP connectivity is required.
Q: Is this unit suitable for outdoor installation?
A: No. The PCO3000EL0 carries an IP20 rating and is designed for installation inside a sealed, ventilated control panel (minimum IP54 enclosure recommended for outdoor environments).
Q: What NTC sensor range does the analog input support?
A: Universal analog inputs support CAREL NTC 10 kΩ @ 25 °C sensors, with a measurement range of -50 °C to +90 °C. Third-party NTC sensors with equivalent resistance curves can be used with custom linearization tables.
Q: Can I order a replacement for a failed unit in an existing installation?
A: Yes. Provide your existing unit’s serial number and application software version when ordering. We recommend also ordering the CVSTDUTTL0 programming key if not on-site, to facilitate application restore from your backup file.
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