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Welcome to the South Mini Splits collection for Cooper&Hunter Main Boards. As the "brain" of your HVAC system, these boards manage the primary logic, timing, and safety protocols required for peak performance. We provide high-quality, authentic replacement components and sophisticated control subassemblies to keep your inverter-driven systems running efficiently.
Our extensive inventory ensures compatibility across various Cooper&Hunter Main Boards platforms. Whether you need the Duct MCB V2 (17123000011299) for indoor ducted units or a specialized Electronic Control Box Subassembly (17222000037708) for advanced DC inverter technology, we have the precision-engineered parts necessary for routine repairs or complex system overhauls.
💡 Why Choose South Mini Splits for Your Cooper&Hunter Main Boards?
- ✅Wholesale Pricing: Competitive rates on critical electronic components and subassemblies.
- ✅USA-Based Support: Expert technical assistance to help you identify the exact board for your specific model number, such as the Main Control Board Subassembly (17122000018658).
- ✅Free Shipping Over $300: Get your vital replacement parts delivered fast to minimize system downtime.
Understanding Cooper&Hunter Main Boards Control Ecosystems
Modern inverter systems utilize a complex ecosystem of boards working in tandem:
- Indoor Main Boards: We carry a wide range of indoor logic boards, from the Main Control Board Subassembly (17122000045295) for wall-mount units to the Main Control Board Subassembly (17123000004052) for high-capacity systems.
- Outdoor Main Boards: Our inventory includes crucial outdoor components like the Outdoor Main Control Board Subassembly (17122000050360) and the Data Transfer Board (17122000055387).
- Data Transfer & Interface Modules: Facilitate high-speed communication with modules like the Data Transfer Board (17122000055387) or the Data Transfer Module Control (17122000062118).
Technical Facts & Performance Advantages
- Multi-Zone Capability: We stock theMain Control Board Sub-Multi Only (17123000010339) and the Module Control Board Multi Only (17122000059682) to manage multiple indoor heads from a single outdoor condenser.
- Voltage Specificity: We offer boards tested for varied power requirements, including 230V and 115V configurations.
- Inverter Precision: Parts like the Inverter Module Subassembly (17122000055348) Anchor Text convert power to the variable frequency needed for DC inverter compressors.
Mini Split BTU Sizing & Application Guide
Use our quick reference chart to match your room size with the ideal system capacity.
| Capacity | Sq. Footage | Application |
|---|---|---|
| 6,000 BTU | 150–250 | Small bedrooms & offices |
| 9,000 BTU | 250–450 | Standard bedrooms |
| 12,000 BTU | 450–600 | Kitchens & studios |
| 18,000 BTU | 600–1,000 | Living rooms & garages |
| 24,000 BTU | 1,000–1,200 | Open floor plans |
| 36,000 BTU | 1,500–1,700 | Commercial & fitness |
| 48,000 BTU | 1,900–2,100 | Large warehouses |
| 60,000 BTU | 2,400–2,800+ | Commercial estates |
When to "Size Up"
If your ceilings are 10 feet or higher, you are cooling a larger volume of air. We recommend increasing your BTU choice by 20%.
For older homes or buildings with single-pane windows, opt for the next size up to ensure the unit can maintain the set temperature.
Appliances generate significant heat. If the unit is for a kitchen, add 4,000 BTUs to your square footage calculation.
Rooms with large south-facing windows or "sunrooms" act like greenhouses. Increase your BTU capacity by 10-15%
If the area regularly hosts more than two people (like a conference room or classroom), add 600 BTUs per additional person..
Frequently Asked Questions
A: If your outdoor condenser connects to only one indoor unit, use a board like the Main Control Board Sub-Single Only (17123000008577). Multi-zone systems require boards designed to manage complex communication between zones.
A: No. Control boards are programmed with specific firmware for different BTU capacities. A 12k BTU unit board like the Main Control Board (30138000318) has different logic than a 24k BTU unit board like the Main Control Board (30138000192).
A: "Subassemblies" usually consist of just the board, while "Assemblies" or "Electric Boxes", like the Electronic Control Box Assembly (17222000033256), often include the protective housing.
A: It depends on the part number. Some items are "Subassemblies" (just the board), while others, like the Electric Box Assy (10000100013), include the protective metal or plastic housing.
A: A V2, such as the Duct MCB V2 (17123000011303), is typically an updated version. Always check communication protocols or contact our support to verify backwards compatibility.