VRF Controller with RS485 & Wi-Fi | Deep Protocol Adaptation for OEMs

SAS965XK

4-Inch Color Screen VRF Controller

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Dual-Protocol: RS485 & Wi-Fi Connectivity

Fast Customization: Accelerated Protocol Porting

Precision Control: 0.5℃ Adj.,± 1℃ Accuracy

Brand Enablement: Support for Custom UI/Logo

Smart Schedule: 4-Period Programming & ECO

Durable Design: IP21 Rating, Fault Code Display

Home Product Commercial Thermostats 4-Inch Color Screen Thermostats

Product Feature

The SAS965XK operates on safe DC 12V power, integrating the RS485 MODBUS open protocol and Wi-Fi connectivity, engineered for VRF manufacturers. We prioritize solving the critical pain points of slow adaptation, complex integration, and lengthy technical onboarding. Through our professional modular customization process and deep protocol adaptation, we ensure high controller performance and system stability, guaranteeing optimized TTM (Time-to-Market) and minimal integration risk for your product roadmap.

Key Functions

Full Mode Support

Includes Cooling, Heating, Dehumidification, Fan, and Hot Water Heating (system dependent).
Smart Scheduling

Features 4-period programming, timer settings, and TuyaSmart APP remote control.
Fan & Louver Control

Offers 3/5 fan speeds; supports vertical/horizontal swing, auto-disabling for incompatible units.

Energy & Comfort

One-touch activation of ECO and Sleep modes for optimized energy use and comfort.
Secure Maintenance

Includes Password Lock, Filter Alerts, and clear Fault Code display for low-risk operation.
User Customization

Supports display brightness adjustment, temperature calibration (0.0℃step), and C/F unit switching.

Product Parameters

● Powersource:DC12V

● IP Rating:IP21

● Temperature setting range: 20°℃~32°℃

● Temperature accuracy:±1°℃

● Temperature display range: 0°C~50°℃

● Temperature increment:0.5°℃

● Operationtemperaturerange:0°C~50°℃

● Shipping & storage temperature:-10℃~60°℃

Product Dimensions

Product Installation

Product Application Scenarios

Ideal for VRF HVAC applications in Commercial Buildings, Office Spaces, Premium Residences, and Hotel Guest Rooms. Leveraging RS485 for robust BMS integration and central control, while utilizing Wi-Fi for IoT-ready smart home integration.

Partnership Support

We are a China-based manufacturer empowering VRF HVAC Integrators, Equipment Manufacturers (OEMs), and Engineering Firms globally, providing turnkey, customized VRF control solutions and expert technical support.

Technical Documentation & Consulting

Provide full product manuals, wiring diagrams, and RS485 MODBUS protocol documents. Dedicated technical team assists with system integration and commissioning.
OEM Customization & Development

Offer deep customization services including Indoor Unit Type Matching, RS485 Parameter Tuning, and Flexible Module Removal to meet specific product line requirements.
Quality Assurance & Warranty

Rigorous Quality Control throughout the manufacturing process ensures product reliability and longevity. We maintain a localized quick-response mechanism to support our global partners, ensuring timely resolution of issues and significantly reducing your operational and after-sales burden worldwide.