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CH7500 Smart Universal Wireless Thermostat - BACnet & WiFi Ready (3H/2C)
CH7500 Smart Universal Wireless Thermostat - BACnet & WiFi Ready (3H/2C)
CH7500 Smart Universal Wireless Thermostat - BACnet & WiFi Ready (3H/2C)
CH7500 Smart Universal Wireless Thermostat - BACnet & WiFi Ready (3H/2C)
CH7500 Smart Universal Wireless Thermostat - BACnet & WiFi Ready (3H/2C)
CH7500 Smart Universal Wireless Thermostat - BACnet & WiFi Ready (3H/2C)
CH7500 Smart Universal Wireless Thermostat - BACnet & WiFi Ready (3H/2C)
CH7500 Smart Universal Wireless Thermostat - BACnet & WiFi Ready (3H/2C)
CH7500 Smart Universal Wireless Thermostat - BACnet & WiFi Ready (3H/2C)
CH7500 Smart Universal Wireless Thermostat - BACnet & WiFi Ready (3H/2C)

CH7500 Smart Universal Wireless Thermostat - BACnet & WiFi Ready (3H/2C)

The CH7500 is a professional-grade Universal Wireless Thermostat engineered for the rigorous demands of the North American commercial and residential markets. Optimized for 3H/2C Multi-stage Heat Pump and conventional systems, it features a unique Dual-Wireless architecture: 2.4GHz WiFi for seamless App/Cloud management and RF 868MHz for rock-solid, wire-free communication between the console and the HVAC unit. Whether you are integrating into a BMS via BACnet or performing a rapid smart retrofit, the CH7500 provides the reliability and flexibility that modern HVAC professionals require.

  • Item No.: CH7500
  • Premium LCD Display: Large, high-contrast segmented LCD screen for clear visibility and tactile reliability.
  • Wireless Versatility: Supports up to 3 Stages Heating and 2 Stages Cooling (3H/2C) with advanced RF technology.
  • System Pairing: One thermostat can wirelessly pair and control up to 8 base modules simultaneously.
  • Universal Compatibility: Seamlessly works with Heat Pump (with/without Aux), Gas, Oil, and Electric systems.
  • Smart Home Ready: Full voice control support with Amazon Alexa and Google Assistant.
  • Flexible Power Supply: The display unit supports both 2 x AA batteries and USB 5V power options.
  • App Integration: Remote management via Tuya Smart or Smart Life App (iOS/Android).

Versatile Smart Control Hub with Flexible Protocol Options for OEM/ODM Projects

The CH7500 is engineered as a high-performance, universal wireless thermostat tailored for professional HVAC distributors and system integrators. Optimized for multi-stage heat pump systems and conventional HVAC units, it offers a scalable hardware platform with optional communication protocols including BACnet MS/TP, Modbus RTU, Zigbee, or 2.4GHz Wi-Fi. This flexibility allows B2B partners to seamlessly integrate the CH7500 into diverse environments—from sophisticated Building Management Systems (BMS) to modern smart home ecosystems—providing a reliable, brand-ready solution that reduces onsite installation labor and inventory complexity.

Customizable Solutions for HVAC Brands & Distributers

Flexible Protocols: Choose from BACnet MS/TP, Modbus RTU, Zigbee, or Tuya WiFi to match your local market requirements.

Private Labeling: Support for custom logo printing, branded App interfaces, and tailored packaging.

Certified Reliability: All units come with FCC/CE compliance, ready for your brand’s rapid market entry.

Scalable Architecture: From residential smart homes to large-scale commercial building integrations.

Technical dimension drawing of CH7500 wireless receiver base module showing 129mm length and mounting holes

Marketing banner for CH7500 smart thermostat showing compatibility with Amazon Alexa and Google Assistant with feature icons for remote app control and customized scheduling

Professional Wiring & System Control

Professional HVAC wiring diagram for CH7500 heat pump and fan coil systems with terminal labels

System Versatility: Compatible with Heat Pump (3H/2C), Conventional HVAC (2H/2C), and both 2-Pipe & 4-Pipe Fan Coil systems.

Dedicated Terminals: Includes specialized terminals for Emergency Heat (E) and Auxiliary Heat (W/AUX) to ensure comfort during extreme weather.

C-Wire Reliability: Requires a 24V Common Wire to ensure a stable, uninterrupted power supply for the high-resolution TFT display.

 

C Wire Adapter (for CH7100/CH7500/CH7600)

This adapter adds the crucial C wire (Common wire) to power your smart thermostat, eliminating the need for extensive rewiring in homes lacking a C wire.

C-Wire Adapter power kit for smart thermostats showing installation diagram between HVAC unit and wall-mounted controller

 

Manufacturing Trust & Certifications

E-TOP Controls product compliance certificates including CE, FCC, UKCA, RoHS, and REACH

ISO Certified Production: Every CH7500 unit is manufactured in an ISO 9001:2015 and ISO 14001:2015 certified facility.

Compliance Standards: Fully certified with CE (RED/EMC/LVD), RoHS, and FCC marks for global market access.

OEM Experience: Backed by E-TOP Controls, a professional manufacturer with over 20 years of experience (since 2003) in ODM/OEM services.

CH-7500 Technical Specifications & OEM/ODM Capabilities

 

Display
LCD Display
System Compatibility Conventional (2H/2C), Heat Pump (3H/2C), 2/4-Pipe Fan Coil
Multi-Protocol RS485 (Modbus RTU / BACnet MS/TP),  Zigbee or 2.4GHz Wi-Fi (Tuya) Optional
Power Supply 20 to 30 VAC, 50/60 Hz (C-Wire required for constant power)
Output Rating 0.5 A each (Y, Y2, W/AUX, W2, G)
Set Temp. Range

Heat/Cool  41~ 95°F (5~35℃)

Auto- Heat 41~91°F (5~33℃)

Auto- Cool 45~95°F (7~35℃)

Accuracy ±1°F (±0.5°C) for precise temperature modulation
Operation Modes Cool, Heat, Auto Mode, Fan Mode, Emergency Heat
Programmability 7 Days 4 Periods (Fully customizable via device or App)
Modes Cool/Heat/Heat&Cold/Fan Mode
Fan Speed Fan On/Fan OFF 
Programmability 7 days 4 periods ( Customizable)
Protection Class IP20
Thermostat Dimension 90X90X23mm (Ultra-slim design)
Material Fire-resistance ABS+PC (RoHS & Reach compliant)
Certificate CE (RED/EMC/LVD), RoHS, FCC, ETL
Quality Assurance ISO 9001:2015 Quality Management System certified manufacturing
OEM & ODM 1. Customized logo and package 
2. Customzied software ( change to customer’s user interface and control logic)
3. Customized hardware ( change the PCB and schematic based on the request)

Precise Dimensions & Professional Installation

 

Technical drawing of CH7500 thermostat showing 90mm dimensions and wall plate mounting holes

 

Frequently Asked Questions

* OEM/ODM & Business Partnership

Q1: Are you a direct manufacturer?

A: Yes. E-TOP Controls is a professional ISO 9001:2015 and ISO 14001:2015 certified ODM & OEM thermostat manufacturer established in 2003. We operate our own advanced production facility to provide end-to-end services from R&D to mass production for global HVAC brands.

 

Q2: Can I put my brand logo on the CH7500 thermostats?

A: Yes. We offer free logo printing on the hardware for wholesale orders meeting a MOQ of 500pcs. This allows you to build brand authority and market presence with zero additional branding costs.

 

Q3: Do you support customized packaging and control logic?

A: Yes. We provide fully customized packing boxes (MOQ 1000pcs). As an engineering-driven manufacturer, we can also tailor the LCD interface (UI) and specific control logic to meet the unique HVAC requirements of your local market.

 

Q4: What is the typical lead time for orders?

A: We ensure a rapid supply chain: 3 working days for samples and approximately 25 working days for mass production orders, ensuring your projects stay on schedule.

 

Technical & Compatibility

 

Q5: Does the CH7500 support multi-stage heat pump systems?

A: Yes. The CH7500 is specifically designed for high-performance HVAC units, supporting up to 3H/2C (3 Stages Heating / 2 Stages Cooling). It intelligently manages Auxiliary Heat and Emergency Heat (E) to maximize both indoor comfort and energy efficiency.

 

Q6: What are the advantages of the CH7500 LCD screen?

A: The CH7500 features a high-contrast segmented LCD display that provides superior tactile reliability and clear visibility from all angles. Unlike touchscreens, it is ideal for high-traffic environments like hotels, offering a durable interface for long-term commercial use.

 

Q7: Can this thermostat be used wirelessly?

A: Yes. The CH7500 uses advanced RF 868MHz wireless communication. One thermostat can pair with up to 8 base modules simultaneously. This wireless architecture eliminates the need for expensive in-wall rewiring, making it the perfect solution for PTAC retrofits and multi-unit buildings.

 

Q8: Does the device require a C-wire for installation?

A: For the Base Module, a 24V C-wire (Common Wire) is required for stable operation. However, the CH7500 Display Unit offers flexible power options, supporting both 2 x AA batteries or a USB 5V power supply, providing ultimate installation flexibility.

 

Q9: Is it compatible with voice control and smart home ecosystems?

A: Yes. Through its integrated Tuya WiFi module, the CH7500 is fully compatible with Amazon Alexa and Google Assistant for hands-free voice control and can be managed remotely via the Tuya Smart or Smart Life app.

Q10: Is the CH7500 compatible with my existing HVAC system?

A: The CH7500 is a highly versatile universal multi-stage thermostat designed for standard Heat Pump and Conventional HVAC systems (up to 3H/2C). It is the perfect solution for residential and commercial central air systems.

Please note: If you are specifically looking for a PTAC (Packaged Terminal Air Conditioner) controller, we recommend our specialized CH7400 series, which is dedicated to PTAC plug-and-play environments. For all other multi-stage heat pump installations, the CH7500 offers superior wireless reliability and smart control.

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