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Universal Air Conditioner Control System QD-U03C+ - SYSTO

The Package of Universal Air Conditioner Control System QD-U03C+ - SYSTO

Universal Air Conditioner Control System Board QD-U03C+ for Wall-Mounted Split Units

Dual Sensors, Auto Restart, Independent Outdoor Fan Control

The QD-U03C+ Universal Air Conditioner Control System Board is a high-performance control solution designed for wall-mounted split air conditioners.
Engineered for precision and reliability, it features dual temperature sensors, independent outdoor fan control, and multiple operating modes for enhanced comfort and energy efficiency.

With a display panel and quick-connect transformer socket, the QD-U03C+ offers a user-friendly installation and stable operation for a wide range of A/C models.
Ideal for A/C repair, replacement, and OEM applications requiring flexible and universal control.

Model

QD-U03C+

Product Type

Universal Wall-Mounted A/C Control System Board

Temperature Range

16°C – 30°C

Fan Speeds

3 levels (Low / Medium / High)

Working Modes

Auto / Cool / Dry / Fan / Heat

Control Functions

imer ON/OFF (1–16 hours), Sleep Mode, Swing Control

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Specifications

Model	Product Type	Control Functions	Working Modes	Fan Speeds
QD-U03C+	Universal Wall-Mounted A/C Control System Board	Timer ON/OFF (1–16 hours), Sleep Mode, Swing Control	Auto / Cool / Dry / Fan / Heat	3 levels (Low / Medium / High)
Temperature Range	Restart Delay	Usage Note
16°C – 30°C	3-minute compressor restart protection	*Avoid strong light interference near IR receiver.	*This product does not apply inverter A/C.

Features

◼01

Dual Sensors Design

Monitors both indoor and evaporator temperatures for accurate control.

◼02

Prevent Cold Wind in Heating Mode

Delays fan operation to ensure warm airflow only.

◼03

Auto Restart Function

Automatically resumes operation after power restoration.

◼04

Independent Outdoor Fan Control

Optimizes outdoor unit performance and energy use.

◼05

Deluxe Receiver with Status Display

Provides visual feedback of system operation.

◼06

Fast Plug Transformer Connection

Easy and reliable installation.

◼07

5 Working Modes

Auto, Cool, Dry, Fan, and Heat modes.

◼08

3 Fan Speeds & Auto Fan Mode

Adjustable airflow to match environmental needs.

◼09

Temperature Control

Adjustable from 16°C to 30°C for customized comfort.

◼10

Timer ON/OFF & Sleep Mode

Scheduled operation and 5-hour automatic sleep-off function.

◼11

Auto Defrost Function

Prevents frost buildup on the evaporator for stable performance.

Before

After

Customization Options

• Logo & Branding: Custom printing or labeling on PCB or receiver panel.
• Function Customization: Modify modes, temperature limits, or timing range upon request.
• Connector Type: Adaptable wiring and plug standards for global applications.
• Display & Receiver: Optional LCD or LED status display modules.
• Packaging: OEM box design and user manual customization supported.

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