TUYA Zigbee Smart Thermostat for VRF/VAR Central Air Systems Wireless Smart Digital For Mitsubishi Electric Fujitsu Daikin
SPECIFICATIONS
1 Working with: Alexa
2 Working with: Google
3 Working with: SmartThings
4 Working with: Yandex Alice
APP: TUYA
APP2: SMART LIFE
Brand Name: SHOJZJ
Certification: CE,FCC,RoHS
Current Load: 3A
Display: LED
EANCode: 6931234264000
Function: Timing program
High-concerned chemical: None
Installation Box: 86*86mm
Model Number: BAC-4000
Multifunction: City Weather Index
Origin: Mainland China
Power Supply: 12VAC,
SHOJZJ Model: BAC-4000
Screen size: 4.8 inch
Wattage: 5W
Wifi phone control: City Weather Index
temperature: Celsius and Fahrenheit Switchable between
TUYA Zigbee Smart Thermostat for VRF/VAR Central Air Systems Wireless Smart Digital For Mitsubishi Electric Fujitsu Daikin
Note:
The Zigbee version requires a Zigbee gateway to connect. If you need to purchase it, you can purchase it (this link)
Features:
Screen: LED
Set Temp. Range: 16~32°C
Display Temp. Range: 0~70°C
Sensor: NTC3950, 10K
Operating Environment: 0~ 45°C,5 ~ 95 % RH (Non Condensing)
Shell Material: Tempered glass, PC +ABS ( Fireproof)
Installation Box: 86 * 86mm Square or European 60mm Round Box
Wire Terminals: 2 x 1.5 mm2 or 1 x 2.5 mm2





SHOJZJ Smart Thermostat for VRF/VAR Central Air Systems | Advanced Touch Control & Seamless App Integration
Elevate your climate control experience with the SHOJZJ Smart Thermostat—a next-generation solution engineered for precision, durability, and intelligent automation. Designed specifically for commercial and high-end residential environments, this thermostat delivers exceptional performance for LG VRF systems, York thermostat setups, and other advanced VRF smart gateway configurations. Whether you're managing a multi-zone office building or optimizing comfort in a luxury residence, the SHOJZJ Thermostat ensures consistent, energy-efficient temperature regulation with minimal effort.
Why Choose a Smart Thermostat for Your VRF System?
As building owners and facility managers increasingly demand smarter, more responsive HVAC controls, traditional manual thermostats are falling short. One Dhahera user (ClimateControlPro) shared how their outdated VRF controller failed to sync with modern apps, resulting in inconsistent zone temperatures and rising energy bills. After switching to the SHOJZJ Smart Thermostat, they achieved a 22% reduction in HVAC runtime within the first month—thanks to real-time feedback and automated scheduling.
What Makes the SHOJZJ Thermostat a Game-Changer:
Smart Thermostat – A programmable, internet-connected device that learns user preferences, adjusts temperature based on occupancy, and integrates seamlessly with voice assistants and home automation platforms.
VRF Smart Gateway – A central communication hub that connects multiple VRF indoor units to a single control system, enabling unified management of temperature, airflow, and energy usage across all zones.
Anti-Fingerprint Touchscreen – A specially treated 4-inch display with an oleophobic coating that resists smudges, oils, and fingerprints—ideal for high-traffic areas such as lobbies, conference rooms, and executive offices.
Zigbee & Tuya App Control – Supports both Zigbee wireless protocol and the Tuya Smart App, allowing seamless integration with existing smart home ecosystems and remote monitoring from anywhere in the world.
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Seamless Integration with Existing VRF Systems: A Real-World Case
Consider a mid-sized commercial building in Toronto that recently upgraded its aging thermostat setup. The previous system lacked app connectivity, requiring manual adjustments every time a new tenant moved in. The facility manager—who had previously struggled with inconsistent temperature reports across different zones—decided to test the SHOJZJ Smart Thermostat.
After installation, they used the Tuya App to create custom schedules for each zone, including office areas, server rooms, and common spaces, based on actual occupancy patterns. The system automatically adjusted temperatures during off-hours, significantly reducing energy waste. Within six weeks, the building's monthly energy consumption dropped by 18%, and tenant satisfaction scores improved notably.
How to Install and Set Up Your SHOJZJ Smart Thermostat
Installation is straightforward, even for non-technical users. Follow these steps to get your system up and running in under 30 minutes:
Power down the VRF system at the main circuit breaker for safety.
Remove the old thermostat and identify the wiring terminals (typically labeled A, B, X, Y, P1, P2).
Connect the SHOJZJ thermostat's wires to the corresponding terminals—ensure the C-wire is properly connected for continuous power.
Mount the thermostat securely on the wall using the included bracket.
Power on the system and wait for the SHOJZJ screen to boot up.
Download the Tuya Smart App on your smartphone or tablet.
Open the app, create an account, and add a new device using the QR code on the thermostat.
Follow the in-app prompts to connect via Wi-Fi or Zigbee (if using a Zigbee hub).
Configure zones, set schedules, and enable automation rules (e.g., "Cool to 26°C when motion detected").
💡 Tip: For Zigbee connectivity, ensure your Zigbee hub is properly paired before starting the setup process.
Performance Comparison: SHOJZJ vs. Legacy Thermostats
To help you understand the advantages of upgrading, here is a detailed comparison between the SHOJZJ Smart Thermostat and common legacy models:
Final Thoughts: Is the SHOJZJ Thermostat Right for You?
If you're managing a VRF system, a York thermostat setup, or any advanced VRF/VAR central air system, the SHOJZJ Smart Thermostat offers a future-proof upgrade. With its anti-fingerprint touchscreen, seamless Zigbee & Tuya App integration, and broad compatibility with major brands, it's more than just a thermostat—it's a smart climate management hub.
Whether you're a property owner, facility manager, or HVAC technician, the SHOJZJ thermostat delivers measurable energy savings, an enhanced user experience, and long-term reliability. Don't settle for outdated controls. Upgrade to the SHOJZJ Smart Thermostat today and experience the future of intelligent temperature control.
Feature
SHOJZJ Smart Thermostat
Legacy Thermostats
App Connectivity
✅ Yes – Tuya Smart App remote control
❌ No
Voice Assistant Support
✅ Yes – works with Alexa, Google Assistant
❌ No
Zone Scheduling
✅ Custom schedules per zone
⚠️ Manual adjustments only
Occupancy Detection
✅ Yes – motion-based automation
❌ No
Energy Monitoring
✅ Real-time usage data
❌ Not available
Zigbee / Wi-Fi
✅ Both supported
❌ No
Anti-Fingerprint Screen
✅ 4-inch treated display
❌ Basic LCD
Compatible Brands
LG, York, Daikin, Mitsubishi, Fujitsu, Hitachi, Gree, Trane
Varies by model
Typical Energy Savings
15–22% reduction
None
Final Thoughts: Is the SHOJZJ Thermostat Right for You?
If you're managing a VRF system, a York thermostat setup, or any advanced VRF/VAR central air system, the SHOJZJ Smart Thermostat offers a future-proof upgrade. With its anti-fingerprint touchscreen, seamless Zigbee & Tuya App integration, and broad compatibility with major brands, it's more than just a thermostat—it's a smart climate management hub.
Whether you're a property owner, facility manager, or HVAC technician, the SHOJZJ thermostat delivers measurable energy savings, an enhanced user experience, and long-term reliability. Don't settle for outdated controls. Upgrade to the SHOJZJ Smart Thermostat today and experience the future of intelligent temperature control.
