Variable Refrigerant Flow (VRF) is everywhere these days. If you work in HVAC, you can’t escape it. The brochures promise efficiency, flexibility, and comfort – sometimes they sound like VRF can solve ...
Put your VRF knowledge to the test! Answer scenario-based questions on system types, refrigerant limits, project goals, noise, and controls. Whether you're a seasoned pro or exploring VRF for the ...
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