Branch Circuit Controller Now Available with Pre-installed Ball Valves

Mitsubishi Electric Trane HVAC US (METUS) has enhanced its Branch Circuit (BC) Controller, now available with pre-installed ball valves.

Mitsubishi Electric Trane HVAC US (METUS) has enhanced its Branch Circuit (BC) Controller, now available with pre-installed ball valves.

As the technological heart of CITY MULTI R2-Series systems, the BC Controller allows the system to simultaneously heat and cool different zones within a building using energy-saving heat recovery. The module contains a liquid-gas separator and uses the a two-pipe configuration to provide simultaneous operation. The BC Controller’s tube-in-tube heat exchangers can accomplish subcooling without returning refrigerant to the outdoor unit, reducing the total energy consumption because of less use of the compressor.

By pre-installing the module’s ball valves, METUS made BC Controller installation quicker and easier for HVAC contractors, lowering labor costs. The BC Controller assemblies are leak and pressure-tested to meet factory specifications, helping to ensure their integrity.

The BC Controller has brazed connections to simplify onsite installation and maintenance. Suitable for schools, office buildings and multifamily applications, up to 11 sub-BC Controllers can be connected to one main BC Controller, substantially increasing system design possibilities. Additionally, the module’s branches can be twinned to provide larger connected capacity for indoor units (up to 96,000 Btu/h), suited for commercial buildings with bigger zones than if used individually.

With a bypass valve located in each branch, the BC Controller also reduces noise within the building during indoor unit mode changes as it operates at 40 dB(A), which is generally quieter than a typical conversation, under normal conditions. The module is smaller in height compared to the previous generation, saving space. Also, service access from the bottom simplifies maintenance for HVAC contractors.

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