Carrier VRF Outdoor Unit

Features Of Carrier VRF Outdoor Unit:

3 Unique Innovations of Carrier VRF System:

1. Energy Management System (EMS) In Carrier VRF System

- Floating Refrigerant Temperature: System Adjustments

• Adjusts evaporating and condensing temperatures based on indoor/outdoor temperatures.
• Ensures optimal comfort and maximum energy efficiency.

- Output Limitation: Temporary Electricity Supply Restrictions

• System can limit output.
• Ensures operation within power capacity.

2. Plate Heat Exchanger (PHE) Subcooling: PHE Functions as Secondary Intercooler

• Boosts refrigerant subcooling by 10%.
• Enhances cooling efficiency.
• Ensures consistent climate control across operational conditions.

3. Compressor that is equipped with Enhanced Vapor Injection (EVI): Therefore, EVI Compressor in Super VX Series results in the following benefits:

• Maintains stable heating operations in low temperatures.
• Improves heating capacity and reliability.

Wide Application Range in Carrier VRF AC:

- Triple Configurations:

- Local Configuration: Facilitates on-site settings for easier installation and commissioning.

- Remote and Network Configurations: Wired and centralized controllers for system checks and adjustments, providing flexibility and ease.

- Browser-Based Access: IMM Pro Gateway Management manages system configurations from a PC, improving management and monitoring capabilities.

- Wide Capacity Range is provided in Carrier VRF system especially in Super VX Series: It starts at 8HP and may go up to 102HP, making it suitable for a wide range of building sizes and cooling/heating requirements.

- Wide Operation Range: Unit Operation Efficiency In Carrier VRF AC.

• Operates in a broad temperature range.
• Cooling mode: -5°C to 54°C.
• Heating mode: -25°C to 24°C.

High Reliability In Carrier VRF AC:

1. Duty Cycling: In Multi-User Systems

• Equalizes running time of outdoor units.
• Enhances compressor lifespan.
• Reduces maintenance costs.

2. Precise Oil Control Technology: System for Outdoor Compressor Lubrication

• Employs four stages of oil control.
• Prevents oil shortages and ensures smooth operation. This includes:

- Internal Oil Separation: Prompt Oil Separation from Discharge Gas, Ensures oil returns to compressors.

- Oil Balance Pipes: Equalize Oil Distribution in Compressors, Preventing uneven wear and tear.

- Auto Oil Return Program: Monitors running time and system status for reliable oil return and minimizes compressor failure risk.

3. Backup Operation: Dual Compressor Units

• Allows independent operation in case of compressor failure.
• Provides time for maintenance/repairs.
• Maintains comfort levels.

4. Anti-Corrosion Protection: Outdoor Unit Anti-Corrosion Treatments

• Standard: Non-extreme conditions.
• Heavy-duty: Harsh environments.
• Components tested for durability.

Enhanced Comfort In Carrier VRF AC:

1. Night Silent Mode: Scheduling Noise Reduction Settings for Residential and Noise-Sensitive Environments

• Allows scheduling of noise reduction settings.
• The PCB card of a Carrier VRF outdoor unit is configurable. This helps in noise reduction.

2. Enhanced Heating Capacity: Unit Performance in Cold Climates

• Maintains 100% heating capacity at -5°C.
• Ensures 90% capacity at -15°C.

3. Intelligent Defrosting Technology: Intelligent Defrosting Program

• Calculates defrosting time based on system status.
• Reduces heat losses from unnecessary cycles.
• Specialized defrosting valve improves efficiency.

Ease of Installation and Ease of Servicing in Carrier VRF AC:

1. Non-Polarized Communication Wiring: 2-Core Non-Polarized Shielded Communication Wiring

• Simplifies installation for indoor/outdoor unit communication.
• 3-Core Shielded Wiring used in strong electromagnetic fields.

2. Auto Addressing: Outdoor Units and Indoor Units

• Automatic address distribution.
• are equipped with wired controllers as well as remote controllers for configuration and maintenance.

3. Automatic Refrigerant Charging/Recycling Function: Optional Refrigerant Charging and Recycling

• Simplifies installation and service.
• Ensures optimal system performance.
• Reduces manual labor.

4. Optional Multifunctional PCB: Optional Multifunctional Small PCB for Unit

• Allows auto-commissioning activation and status check without front panel removal.
• Supports automatic data backup for troubleshooting and performance analysis.

Technical Specifications Overview Of Carrier VRF System (VX/VXi Series)

Model Range and Operation Specifications of Fan Units

• Single Fan Units: 8HP, 10HP, 12HP, 14HP, 16HP, 18HP, 20HP.
• Dual Fan Units: 22HP, 24HP, 26HP, 28HP, 30HP, 32HP, 34HP.
• Operating Conditions: Cooling Mode: -5°C to 54°C; Heating Mode: -25°C to 24°C.
• Capacity: Configurations from 8HP to 102HP.
• Energy Efficiency Features: EMS, EVI compressor, PHE for subcooling efficiency.
• Durability Features: Duty cycling, anti-corrosion coatings, backup operation mode.
• Comfort and Acoustic Management: Night silent mode, intelligent defrosting, enhanced heating capacity.
• Installation and Maintenance: Auto-addressing, automatic refrigerant charging, recycling, optional multifunctional PCB for easy diagnostics and data backup.

How To Install Carrier VRF AC:

 Carrier VRF system Outdoor Unit Installation Process:

1. Pre-Installation Preparations:

• Site Assessment of Carrier VRF outdoor unit: Choose a well-ventilated location for outdoor units.
• Electrical Requirements: Ensure the electrical supply matches the unit's requirements.
• Unpacking and Positioning: Firstly, unpack the unit and then check for missing components or any visible damage.
• Connecting Refrigerant Piping: Follow the piping diagram provided in the installation manual.
• Flare Connections: Cut the pipes to the required length and create flare connections at the ends.
• Electrical Connections: Connect the main power supply cables to the outdoor unit's terminal block.
• Communication Wiring: As the name suggests, indoor machines need to communicate with the outdoor machines, therefore, make sure to run the communication cables properly between the outdoor and indoor units.

1. Vacuum and Leak Testing of Carrier VRF outdoor unit:

• Vacuuming: Connect a vacuum pump to the service ports and evacuate the system.
• Leak Testing: Perform a pressure test using nitrogen gas to check for leaks in the refrigerant piping.
• Charging Refrigerant: Charge the refrigerant according to the unit’s specifications provided in the installation manual.

1. System Initialization and Testing:

• System Check: Turn on the power supply and initiate the system start-up sequence as per the manual.
• Performance Testing: Once the system has been properly installed, allow the system to run for a period of time in order for it to stabilize. After that check the system pressures, temperatures, and airflow.

1. Final Adjustments and Documentation:

• Based on the performance tests, make any necessary adjustments.
• Complete the installation documentation, including the model and serial numbers of the installed units, refrigerant charge amounts, and initial performance data. To know more about the Carrier VRF indoor unit and the Carrier VRF price list, call us at the number listed on our website.