AC603F Digital Programmable WiFi Fan Coil Thermostat — 220V/24V Dual Voltage for 2/4-Pipe Systems
Dual Voltage Ready
Supports both AC 220V and optional 24V input. One SKU covers global project specifications without electrical barriers.
WiFi & RS485 Optional
Remote HVAC management via mobile APP or Modbus BMS integration. Reduce on-site maintenance visits by 60%.
3-Minute Installation
Standard 86×86mm junction box mount with quick-connect screw terminals. No specialist electrician required.
Flame Retardant Safety
Housed in anti-flammable PC+ABS (UL94 V-0 rated). Exceeds international hotel fire safety standards.
Modulating or ON-OFF
Switch between 0-10V proportional valve control and relay-based ON-OFF via internal jumper. One model, two control modes.
3-Year Warranty
Backed by 16 years of Telin HVAC engineering. 100,000+ cycle relay rating. Free online technical support included.
At a Glance
Product Overview
The AC603F is a versatile digital room thermostat engineered for precise temperature regulation of 2-pipe and 4-pipe Fan Coil Units (FCU) in hotels, apartments, villas, offices, and sauna rooms. Manufactured by Hubei Telin Energy Saving Equipment Co., Ltd., it combines a modern square design with optional WiFi / RS485 connectivity, dual-voltage support, and both ON-OFF relay and 0-10V modulating control signals for maximum flexibility across diverse HVAC projects.
Each unit is housed in anti-flammable PC+ABS material, features mobile APP control capability, and comes with a 3-year warranty backed by 16 years of HVAC manufacturing expertise. Full OEM/ODM customization — from branded logo and custom color shells to modified firmware — is available with a MOQ of 100 pieces.
Product Features
🏠 Multi-Scene Deployment
Designed to integrate seamlessly into hotels, luxury apartments, private villas, office spaces, and sauna rooms. The 86×86mm square format is compatible with standard junction boxes worldwide, reducing procurement complexity for international chain projects.
📱 Smart Connectivity
Optional WiFi module enables remote temperature management via mobile APP. RS485 Modbus option provides direct BMS integration for centralized building control — ideal for property management firms and hotel operators.
🔌 Flexible Electrical Design
Dual-voltage input accepts AC 220V or 24V supply, eliminating the need for external transformers. The modulating 0-10V output connects directly to proportional valve actuators, while ON-OFF relays handle standard thermal valves — all from the same hardware.
🔒 Built to Last
Every AC603F undergoes a 48-hour continuous burn-in test before leaving our ISO 9001-certified Hubei factory. Internal relays are rated for over 100,000 switching cycles, and the self-extinguishing PC+ABS enclosure provides peace of mind for building safety compliance.
Product Parameters
⚡ Electrical
📏 Mechanical
🌡 Environment
Dimensions & Installation
Application Scenarios
The AC603F’s square modern design and flexible control options make it suitable for any indoor environment requiring precise temperature management.
Private Villa
WiFi-enabled remote control lets homeowners adjust climate from anywhere via smartphone.
Hotel Suite
3-speed fan control and simple button interface ensure guests enjoy effortless comfort during their stay.
Commercial Office
RS485 Modbus integration enables centralized BMS energy optimization across building portfolios.
Ready to Discuss Your Project?
Get pricing, request samples, or consult our engineers about your custom HVAC control requirements.
Hubei Telin energy-saving equipment Co., Ltd (Production Base)
Add: No.1 Lingcheng Industrial Park, Lingxiang Town, Daye, Huangshi City, Hubei Province, China.
✉ sales@sztelin.com | ☎ +86 13410830001
