Description
Product Overview
The Universal AC Control System QD-U03C+ is a high-performance replacement circuit board engineered for standard split air conditioners. Designed by Qunda, this universal control board provides stable operation, accurate temperature regulation, and reliable daily performance. The QD-U03C+ is the ideal solution for professional technicians looking for a trusted, cost-effective replacement board that works seamlessly across multiple AC brands.
Technical Specifications
| Specification | Details |
| Brand | Qunda |
| Model | QD-U03C+ |
| Product Type | Universal AC Control PCB System |
| Sensor Type | Dual Temperature Sensors (Room and Pipe) |
| Fan Speed Control | Multi-Speed (High, Medium, Low) |
| Defrost Control | Integrated Auto Defrost System |
| Memory Function | Auto Restart Memory |
| System Application | Standard Non-Inverter Split Air Conditioners |
| Product Condition | New / Universal Replacement |
Key Features
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Universal Compatibility: Fits and operates with a wide variety of standard non-inverter split AC units.
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Precise Temperature Control: Advanced sensor monitoring ensures stable, accurate cooling performance.
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Multi-Speed Fan Control: Complete regulation over indoor fan speeds (High, Medium, Low) for balanced airflow.
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Smart Modes: Integrated auto defrost system to prevent coil freezing and sleep mode for comfortable operation.
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Auto Restart Memory: Automatically recovers and restores previous operational settings after a power outage.
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Durable Build: High-quality built-in relays and electronic components designed for power surge resistance and long service life.
System Compatibility
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Compatible AC Types: Standard Non-Inverter Ductless Split Air Conditioners.
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Control System Compatibility: Multi-pin terminal connections for standard indoor fan motors, swing motors, and compressors.
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Brand Compatibility: Universal retrofit application across various OEM split air conditioner brands.
Applications & Functions
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System Repairs: Direct replacement for damaged or faulty indoor AC control boards in standard split units.
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Cost-Effective Solution: A budget-friendly alternative to expensive OEM manufacturer-specific control boards.
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Restores Performance: Instantly brings older or malfunctioning AC units back to peak operational efficiency.
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Technician-Friendly Setup: Straightforward, simple wiring layout designed for quick HVAC technician installation.
Installation & Technician Notes
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Professional Installation Required: Installation must be performed by a qualified HVAC technician.
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Pre-Purchase Verification: Ensure the target system is a non-inverter split unit prior to installation.
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Wiring Setup: Follow the provided wiring diagram to properly attach multi-pin harness connectors, display panel, and dual sensors.
Package Includes
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1 x Qunda Universal AC Control Board (QD-U03C+)
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1 x Wireless Remote Control
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1 x Display Board / Receiver Panel
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1 x Dual Temperature Sensor Assembly (Room and Pipe)
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1 x Multi-Pin Wiring Harness & Connectors
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1 x User Manual & Wiring Diagram
Important Buyer Verification Notes
Notice for Buyers & Technicians: Verify that your system is a standard non-inverter split air conditioner. Confirm that sensor requirements and wiring terminal connections align with universal replacement specifications before ordering.
Why Buy From Al Ramiz
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Genuine Quality Parts: Dependable, factory-tested HVAC spare parts and control boards.
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UAE Stock & Local Inventory: Fast processing and local dispatch across the UAE.
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Technical Product Support: Assistance with component selection and product verification.
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Competitive Pricing: Cost-effective solutions for contractors and service technicians.
Frequently Asked Questions (FAQs)
What sensors are included in the QD-U03C+ package?
The package includes a dual temperature sensor set featuring both room air and copper pipe sensors.
Can the QD-U03C+ prevent the evaporator coil from freezing?
Yes, it includes an integrated auto defrost function to monitor coil conditions and prevent freezing.
Does this system remember operational settings after a power outage?
Yes, it features an auto-restart memory function that automatically recovers and restores previous operational settings once power is restored.
Is the QD-U03C+ compatible with inverter AC systems?
No, it is engineered specifically for standard non-inverter split air conditioners.
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