THE AIR/OIL TEMPERATURE REGULATOR IS AN ASSEMBLY OF AN AIR/COOLER AND AN OIL TEMPERATURE CONTROL VALVE. THE AIR/OIL COOLER HAS A RECTANGULAR CORE ASSEMBLY WITH AN OIL RETURN PAN ON ONE END AND AN INLET/OUTLET PAN BOLTED VALVE MANIFOLD ON THE OTHER END. THE AIR INLET AND OUTLET MANIFOLDS ARE WELDED TO THE OTHER TWO CORE FACES. THE CORE ASSEMBLY IS A BRAZED PLATE-FIN TYPE WITH PASSAGES FOR COOLING AIR AND FOR OIL. THE REGULATOR CONTROLS THE TEMPERATURE OF THE LUBRICATING OIL USED IN THE AUXILIARY POWER UNIT (APU). AIRFLOW IS SUPPLIED TO THE REGULATOR FROM A FAN MOUNTED ON THE GEARBOX OF THE APU. THE OIL TEMPERATURE CONTROL VALVE OPENS AND CLOSES AS NECESSARY TO KEEP THE OIL TEMPERATURE IN THE CORRECT RANGE.

CLASSIFICATION HAS BEEN DETERMINED IN ACCORDANCE WITH THE FOLLOWING:- GENERAL INTERPRETATIVE RULES (GIR)S GIR 1 HAS BEEN USED TO CLASSIFY THIS PRODUCT BY THE TERMS OF HEADING 9032 - AUTOMATIC REGULATING OR CONTROLLING INSTRUMENTS AND APPARATUS GIR 6 HAS BEEN USED TO CLASSIFY THE GOODS TO SUBHEADING LEVEL 903210 - THERMOSTATS CN CODE 90321089 - OTHER THAN WITH ELECTRICAL TRIGGERING DEVICE TARIC CODE 9032108990 - OTHER THAN FOR USE IN CIVIL AIRCRAFT ALSO CLASSIFIED IN ACCORDANCE WITH NOTE 7A TO CHAPTER 90 HARMONIZED SYSTEM EXPLANATORY NOTES (HSEN) NOTE D (1)TO HEADING 9032 PAGE XVIII-9032-2