Chiller Water Temperature Controller from Canada
Automatically controls chilled water temperature in commercial HVAC chiller plants by modulating valves and pumps based on supply/return temperature differentials. Classified in HTS 9032.89.6025 for regulating air conditioning system parameters. Used in large building cooling systems.
Duty Rate — Canada → United States
11.7%
Rate breakdown
9903.05.2910%Section 301 (forced labor) — additional 10% ad valorem on products of Canada
Import Tips
• Provide PID control algorithm specifications to prove automatic regulation
• Include sensor accuracy certifications (±0.1°C typical)
• Don't confuse with manual controllers; emphasize closed-loop automatic operation