Y&H HFP-6.3KW-48V-M120A-SA Solar Hybrid Inverter

1. Introduction

This manual provides essential information for the safe and efficient operation of your Y&H HFP-6.3KW-48V-M120A-SA 6.3KW 48V On/Off-Grid Solar Hybrid Inverter. This multi-function inverter/charger integrates an inverter, solar charger, and battery charger to provide uninterruptible power support. It features a comprehensive LCD display for user-configurable settings such as battery charging current, AC/solar charger priority, and acceptable input voltage.

The inverter delivers a pure sine wave output, making it suitable for various household and office loads including refrigerators, lamps, televisions, fans, and air conditioning units.

Figure 1: Front view of the Y&H HFP-6.3KW-48V-M120A-SA Solar Hybrid Inverter, showing the LCD screen and control panel.

2. Important Safety Instructions and Warnings

Please read and understand all instructions and warnings before installing, operating, or servicing this inverter. Failure to follow these instructions may result in electric shock, fire, severe injury, or death.

• Utility Bypass Mode: In utility bypass mode, the device cannot be connected to two-phase 220V AC (L1-L2 cannot be connected to L-N).
• Inverter Mode: When the device is connected to two-phase 220V in inverter mode, do not select utility priority for the output priority to prevent safety hazards.
• Autotransformer Connection: Do not connect the AC output of the device to an autotransformer, as this may affect the normal service life of the device.
• Output Voltage: This inverter provides a single-phase 230V AC output. It cannot output 110V AC directly. A separate converter (not included) is required for 110V applications.
• Parallel Operation: This Y&H off-grid solar inverter does not support parallel operation.
• Phase Separation: This inverter does not support phase separation.
• Ensure proper grounding for all electrical connections.
• Installation and wiring must be performed by qualified personnel in accordance with local electrical codes.
• Do not disassemble the inverter. There are no user-serviceable parts inside.
• Keep the inverter away from flammable materials and ensure adequate ventilation.

3. Setup and Installation

Proper installation is critical for the safe and efficient operation of your solar hybrid inverter. Refer to the wiring diagram below for connection details.

Figure 2: Wiring and technical specifications overview, illustrating connections for PV input, battery, AC input (generator/mains), and AC output.

3.1 PV Input Connection

• Max PV Array Power: 7000W
• Max PV Open Circuit Voltage: 500Vdc
• MPPT Tracking Voltage Range: 80VDC - 450VDC
• Starting Voltage (initial charging): >90V
• Max PV Input Current: 22A
• Suggested PV Cable Size: 12AWG
• It is recommended to connect solar panels in series to achieve the optimal MPPT voltage range.

3.2 Battery Connection

• Battery Voltage: 48V
• Compatible Battery Types: Lead-acid (Seal, AGM, Gel, Flooded) and Lithium Battery.
• Suggested Battery Cable Size: 2AWG (Cable: 25mm²)
• Max Charging Current: 120A (combined PV and AC charging)
• Max PV Charging Current: 120A
• Max AC Charging Current: 80A
• For Lithium Batteries, the inverter supports communication with PACE BMS for monitoring and management.

Figure 3: Battery compatibility and communication. The inverter supports various battery types, with specific communication for PACE BMS lithium batteries.

3.3 AC Input and Output Connection

• Mains Input Voltage Range: 187VAC~264VAC
• Rated Input Frequency: 50Hz/60Hz (auto-sensing)
• Max AC Input Voltage: 300Vac
• Suggested AC Input Cable: 10AWG
• Recommended AC Input Breaker: 50A
• Rated Output Power (AC): 6300W
• AC Output Voltage: 230Vac (Pure Sine Wave)
• Suggested AC Output Cable: 10AWG
• Recommended AC Output Breaker: 50A

4. Operating Modes and Settings

The inverter offers flexible operating modes and user-configurable settings via its LCD display.

4.1 Working Modes

The Y&H HFP-6.3KW-48V-M120A-SA supports three primary working modes:

1. Off-Grid Mode: Operates as an energy storage device, providing power from solar and/or battery without connection to the utility grid.
2. On-Grid Mode: Allows for reduction of household electricity bills by feeding excess solar power back to the grid (if supported by local regulations and grid connection).
3. Hybrid Mode: Combines aspects of both on-grid and off-grid operation, optimizing power flow between solar, battery, utility grid, and loads.

4.2 Charging Modes

Three charging modes are available to prioritize power sources for battery charging:

• Utility First: Prioritizes charging from the utility grid.
• Solar First: Prioritizes charging from solar panels.
• Solar & Utility: Charges from both solar and utility sources simultaneously.

4.3 LCD Display and Control

The LCD display provides real-time system data and allows for user configuration of various parameters, including:

• Battery charging current
• AC/solar charger priority
• Acceptable input voltage range
• Output source priority (e.g., Solar, Utility, Battery)

Figure 4: Key features including pure sine wave output, intelligent temperature control, multiple protection mechanisms, and the dynamic LCD screen with LED indicators.

5. Communication Features

The inverter is equipped with dual communication ports for enhanced monitoring and battery management.

• RS485 Port: Supports communication with Lithium Battery Packs equipped with PACE BMS for real-time battery status monitoring and management.
• WIFI Communication: Allows monitoring of the inverter's working status anytime, anywhere via a mobile application.

Figure 5: Dual communication ports for remote monitoring via WIFI and battery management with PACE BMS.

6. Protection Features

The Y&H HFP-6.3KW-48V-M120A-SA inverter incorporates comprehensive 360° protection mechanisms to ensure safe and reliable operation of your system and connected appliances.

• Short Circuit Protection
• Over-Load Protection
• Over Charge Protection
• Over Current Protection
• Backfill Protection
• Over Voltage Protection
• Under Voltage Protection
• Over-Temperature Protection

Figure 6: Comprehensive protection features integrated into the inverter for system safety.

7. Maintenance

Regular maintenance ensures the longevity and optimal performance of your Y&H Solar Hybrid Inverter.

• Cleaning: Keep the inverter's ventilation openings clear of dust and debris. Use a dry, soft cloth for cleaning the exterior. Do not use liquid cleaners.
• Connections: Periodically check all electrical connections (PV, battery, AC input/output) for tightness and signs of corrosion. Tighten any loose connections.
• Environment: Ensure the installation environment remains within the specified temperature and humidity ranges. Avoid direct sunlight and excessive moisture.
• Battery Health: Monitor battery voltage and health, especially for lead-acid batteries, to ensure they are operating within recommended parameters.
• Firmware Updates: Check the manufacturer's website for any available firmware updates that may improve performance or add features.

8. Troubleshooting

This section provides guidance for common issues. For problems not listed here, please contact customer support.

9. Specifications

Detailed technical specifications for the Y&H HFP-6.3KW-48V-M120A-SA Solar Hybrid Inverter.

Figure 7: The inverter's capacity to power a range of household appliances.

10. Warranty and Support

Y&H products are designed for reliability and performance. This product comes with a standard manufacturer's warranty against defects in materials and workmanship. Please refer to your purchase documentation or the official Y&H website for specific warranty terms and conditions.

For technical support, troubleshooting assistance, or warranty claims, please contact Y&H customer service through the retailer where the product was purchased or visit the official Y&H support portal.

Contact Information: (Please refer to your product packaging or the manufacturer's official website for the most current contact details.)