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General| Brand | Carel |
|---|---|
| Model | Hecu CO2 |
| Category | Control Systems |
| Language | English |
Overview of Hecu CO2 control system capabilities and benefits.
List and description of Hecu CO2 system components and optional accessories.
Detailed explanation of the terminals on the Hecu CO2 main control board.
Electrical and mechanical specifications for the 10A single-phase Power+ inverter.
Electrical and mechanical specifications for Power+ inverters: 12-16A single-phase and 18-24A three-phase.
Electrical and mechanical specifications for the 12A single-phase PSD2 inverter.
Electrical and mechanical specifications for 15A 1PH and 18A 3PH PSD2 inverters.
Details on setting network addresses for PSD2 inverters using dipswitches.
Specifications and operating details for Unipolar E2V valves used with R744 refrigerant.
Technical specifications for pressure probes, including part numbers and ranges.
Technical specifications for various temperature probes (NTC, HT, HF).
Wiring diagram showing connections between Hecu CO2, inverters, sensors, and evaporators.
Diagrams illustrating medium and low temperature configurations for Hecu CO2 systems.
Hecu CO2 system setup for medium temperature applications, including components.
Hecu CO2 system setup for low temperature applications, including optional components.
Step-by-step installation guidelines, safety precautions, and wiring recommendations.
Setting up serial communication between Hecu CO2, Power+, MPXPRO, and UltraCella controllers.
Description of the pGDE terminal, its buttons, LEDs, and navigation principles.
Explanation of the different screen types (Main, Menu, Parameter) on the Hecu CO2 user interface.
Overview of the Hecu CO2 main menu structure and available branches for configuration.
Step-by-step wizard for initial setup and configuration of the Hecu CO2 system.
Methods for switching the Hecu CO2 unit on and off via terminal, supervisor, or digital input.
Detailed management, configuration, and operation of BLDC compressors with Hecu CO2.
Synchronized management of LT compressors using DSS1/DSS3 and independent control.
Configuration and operation of fans, including cut-off and speed-up functions.
Overview of oil injection methods: capillary valve, EEV, and oil speed boost.
Configuration of a digital output to indicate the compressor's readiness status.
Control and optimization of the HPV valve for transcritical and subcritical operation.
Management of the RPRV valve for controlling CO2 receiver pressure.
Utilizing generic functions for stages, modulation, and alarms with internal variables.
Procedures for saving, restoring, and loading user and Carel default values.
Steps to configure MPXPRO controllers for rapid system setup.
Setting parameters for probes, refrigerant type, and electronic valve for MPXPRO.
Configuring Ultracella controllers for the system.
Wiring diagram for connecting Ultracella controllers to the system.
Guide to using the service terminal for initial configuration of Ultracella controllers.
Configuring analogue inputs (probes) for temperature and pressure on Ultracella.
Adjusting probe readings and defining functions for digital inputs.
Details on different defrost modes and fan behavior during defrost cycles.
Procedure for commissioning the EVD EVO driver module via UltraCella.
Connecting and configuring MPXPRO/Ultracella to Hecu.
Automatic system setup for Hecu CO2 with connected MPXPRO/Ultracella controllers.
Setting control parameters for MPXPRO/Ultracella evaporators connected to Hecu.
Explanation of PID control and Smooth Lines function for electronic valve management.
Function to prevent low superheat and manage evaporator defrosting.
Managing alarms, understanding priority, reset methods, and alarm log access.
Setting up and selecting descriptions for compressor alarms.
Configuring pressure alarms from switches and probes for suction and condensing pressure.
Alarm function to prevent liquid return by closing evaporator valves.
Implementing prevention actions for high discharge pressure, overriding fans and compressor.
How alarms from MPXPRO/UltraCella are integrated and forwarded to Hecu CO2.
Comprehensive table listing all alarms, their descriptions, triggers, and reset methods.
Methods for updating firmware and acquiring log files using Smartkey or PCO Manager.
Installing application programs and using the PCO Manager commissioning tool.
Changing parameters and understanding basic concepts of the commissioning tool.
List of software versions and updates for the Hecu CO2 system.
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