This document is a Quick Installation Guide for the Dyness Split-Phase Hybrid Inverter, covering models TX5K-HM, TX6K-HM, TX7.6K-HM, TX9.6K-HM, and TX11.4K-HM. It provides essential information for the safe and correct installation and operation of the inverter.

Function Description

The Dyness Split-Phase Hybrid Inverter is designed to manage and convert power in a hybrid energy system, integrating solar PV input, battery storage, and AC grid connections. It supports both on-grid and off-grid operations, providing backup power capabilities. The inverter is equipped with various communication interfaces for system monitoring and control, including BMS (Battery Management System), DI (Digital Input), EMS (Energy Management System), and GEN (Generator) & DRY COM (Dry Contact). It also features a DC switch for PV input and a built-in RCMU (Residual Current Monitoring Unit) to prevent DC residual currents.

Important Technical Specifications

General:

Models Covered: TX5K-HM, TX6K-HM, TX7.6K-HM, TX9.6K-HM, TX11.4K-HM.
Input Type: PV Input Terminal (PV+/PV-), Battery Terminal (BAT+/BAT-).
Output Type: AC Output Terminal (L1/L2/N).
Safety Compliance: Designed and tested strictly according to international safety regulations.
RCMU: Built-in RCMU prevents DC residual currents up to 6mA, allowing for an external RCD (Type A, ≥30mA) in the system.

Dimensions and Weight:

Dimensions: Approximately 8.7 inches (width) x 19.1 inches (depth) x 28.7 inches (height).
Mounting: Wall-mounted, requiring a wall bearing capacity greater than 72.8 lbs (33 kg).

Environmental Conditions:

Operating Temperature: -77°F to 140°F (-25°C to 60°C).
Humidity: 0% to 95% RH.
Mounting Angle: Must be mounted at an angle less than 15 degrees from vertical.
Clearance: Requires specific clearances around the inverter for proper ventilation: 11.8 inches (30 cm) on top, bottom, and sides, and 16.7 inches (42.5 cm) in front.

Wiring Specifications:

PV Input: Max 7.4mm (0.29in) diameter, 20mm (0.79in) stripping length, Copper, 12 AWG.
BAT Input: Max 7.4mm (0.29in) diameter, 24mm (0.94in) stripping length, Copper, 6 AWG.
AC Input: Max 7.4mm (0.29in) diameter, 24mm (0.94in) stripping length, Copper, 6 AWG.
Recommended Catheter: 1 inch.

Power-on Sequence (Without SCD BOX):

DC Breaker (PV): 32A/1100V DC Switch.
*MAX Battery Current (A) 1.2 (DC breaker):
- TX5K-HM/TX6K-HM: 25 A/400 V AC breaker.
- TX7.6K-HM/TX9.6K-HM: 32 A/400 V AC breaker.
- TX11.4K-HM: 63 A/400 V AC breaker.
AC Breaker: Depends on household loads.
Sequence: 5 (Main Meter) → 2 (DC Breaker) → 1 (Inverter) → 4 (AC Breaker) → 3 (AC Breaker).

Power-on Sequence (With SCD BOX):

DC Breaker (PV): 32A/1100V DC Switch.
*MAX Battery Current (A) 1.2 (DC breaker):
- TX5K-HM/TX6K-HM: 25 A/400 V AC breaker.
- TX7.6K-HM/TX9.6K-HM: 32 A/400 V AC breaker.
- TX11.4K-HM: 63 A/400 V AC breaker.
Sequence: 2 (DC Breaker) → 1 (Inverter) → 4 (AC Breaker) → 3 (AC Breaker).

Usage Features

LED Indicators: The inverter features a front-panel LED indicator that provides real-time status updates:

RUN:
- ON: Inverter is running.
- Single Flash: Inverter is powered on.
- Double Flash: Inverter is starting.
- OFF: Inverter is not operating.
OFF GRID:
- ON: Backup is ready.
- Single Flash: Grid bypass mode.
- OFF: Backup port no voltage.
COM:
- ON: BMS and meter communication OK.
- Single Flash: Meter communication OK, BMS communication fail.
- Double Flash: BMS communication OK, Meter communication fail.
- OFF: BMS and Meter communication fail.
FAULT:
- ON: Error occurred.
- OFF: No errors.
SOC (State of Charge):
- 4th LED Blinks: 0% ≤ SOC ≤ 25%.
- 3rd LED Blinks: 25% < SOC ≤ 50%.
- 2nd LED Blinks: 50% < SOC ≤ 75%.
- 1st LED Blinks: 75% < SOC ≤ 100%.

Communication Interfaces:

GEN & DRY COM: For generator and dry contact communication.
BMS & DI & EMS COM: For Battery Management System, Digital Input, and Energy Management System communication.
RJ45: Standard Ethernet port for communication.

Installation:

Wall Mounting: The inverter is designed for wall mounting using a provided bracket and expansion plugs.
Clearance Requirements: Specific clearances must be maintained around the inverter to ensure adequate heat dissipation and access for maintenance.
Electrical Connections: Detailed instructions are provided for connecting PV input, battery input, and AC output, emphasizing correct wiring and stripping lengths.
DC Switch: A DC switch (PV Only) is integrated for safety and system control.

Maintenance Features

Safety Precautions:

Disconnection: Always disconnect the inverter from all external power sources for at least 5 minutes before maintenance to avoid electric shock.
High Voltage: Danger of life due to high voltages.
Hot Surface: The inverter surface can exceed 140°F (60°C) during operation; ensure it has cooled down before touching.
Qualified Personnel: All operations and maintenance must be performed by qualified electricians.
No Unauthorized Opening: Do not open the inverter cover or change components without manufacturer's authorization, as this will void the warranty.
PPE: Operation personnel must wear proper personal protective equipment (PPE).

Troubleshooting:

LED Indicators: The LED indicators assist in quickly identifying the inverter's operational status and potential issues.
Documentation: Refer to the user manual (downloadable from www.dyness-tech.com or via QR code) for detailed instructions and troubleshooting.

Warranty:

Voided Warranty: Incorrect operation, unauthorized modifications, or failure to follow instructions will void the warranty.
Static Electricity: The manufacturer does not provide a warranty for damage caused by static electricity; appropriate protection methods must be adopted.

Product Improvement:

Updates: Contents of the guide may be periodically updated or revised due to product development. Information is subject to change without notice.

Disposal:

Household Waste: Products shall not be disposed of as household waste.

Dyness TX5K-HM - Page 15