Mitsubishi Electric City Multi VRF Branch Controller with Port Isolation Valves
The Mitsubishi Electric BC Controller with Port Isolation Valves is an advanced distribution box designed for Mitsubishi Electric City Multi R2 and WR2 2-pipe VRF heat recovery systems. Equipped with factory-fitted isolation valves on every branch port, this specialised controller allows individual indoor fan coils to be isolated independently.
The primary advantage of port isolation is zero disruption to your building’s operation: you can service, repair, or replace specific indoor units in individual rooms or offices while the rest of the VRF system continues running uninterrupted.
Mitsubishi Electric BC Controllers with Port Isolation Valves — Port Options & Configurations
| Ports | Configuration Type | Master Controller SKU | Compatible Sub-Controller Options | Key Application / Ideal Use |
|---|---|---|---|---|
| 4 Ports | Main / Master Controller | CMB-M104V-JA1 | KS8-CMB-M104V-KB1 / KS8-CMB-M108V-KB1 | Small commercial spaces, boutique retail, single floors |
| 6 Ports | Main / Master Controller | CMB-M106V-JA1 | KS8-CMB-M104V-KB1 / KS8-CMB-M108V-KB1 | Medium offices, dental practices, multi-room suites |
| 8 Ports | Main / Master Controller | CMB-M108V-JA1 | KS8-CMB-M104V-KB1 / KS8-CMB-M108V-KB1 | Commercial office floors, healthcare facilities, schools |
| 12 Ports | Main / Master Controller | CMB-M1012V-JA1 | KS8-CMB-M104V-KB1 / KS8-CMB-M108V-KB1 | Large open-plan offices, hotel floors, multi-tenant units |
| 16 Ports | Main / Master Controller | CMB-M1016V-JA1 | KS8-CMB-M104V-KB1 / KS8-CMB-M108V-KB1 | High-density commercial buildings & multi-room facilities |
| 4 Ports (Sub) | Sub-BC Controller | KS8-CMB-M104V-KB1 | Expands Main Controller (+4 ports) | Branch expansion for secondary rooms or floor extensions |
| 8 Ports (Sub) | Sub-BC Controller | KS8-CMB-M108V-KB1 | Expands Main Controller (+8 ports) | Large-scale system expansion across multiple zones |
Key Features & Technical Benefits:
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Factory-Fitted Port Isolation Valves: Isolate individual indoor units without needing to reclaim refrigerant or shut down the entire heating and cooling network.
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Uninterrupted Building Comfort: Perfect for multi-tenanted offices, hotels, healthcare facilities, and mission-critical sites where continuous system operation is essential.
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Efficient 2-Pipe Heat Recovery: Directs liquid or gas refrigerant on demand, redirecting waste thermal energy from cooling zones to satisfy heating requirements in other areas.
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Integrated Sub-Cooling (HIC) Circuit: Built-in HIC circuit optimise refrigerant sub-cooling to improve total system COP and overall operational efficiency.
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Scalable Configurations: Available in multiple port options (Master and Sub-BC configurations) supporting extensive indoor unit connectivity on a single outdoor loop.
Professional Supply, Replacement & Installation by SWAT Engineering
At SWAT Engineering, we are commercial vrf installation contractors UK providing complete end-to-end HVAC solutions for commercial and residential developments across the United Kingdom:
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Expert VRF System Installation: Our REFCOM-certified engineers design, supply, and install full Mitsubishi Electric City Multi VRF networks tailored to your building layout.
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BC Controller Replacement & Retrofits: Experiencing solenoid valve faults or leaks on an older BC box? We supply and install direct replacement branch controllers with port isolation valves to upgrade your system’s serviceability.
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Minimal Operational Downtime: By utilising controllers with port isolation valves, our engineers can install or upgrade indoor zones with zero disruption to neighbouring rooms or offices.
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Full Warranty & Maintenance Contracts: Receive comprehensive manufacturer warranty backing alongside ongoing planned preventative maintenance packages tailored to your commercial property.
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