3TABLE OF CONTENTSAnalyzer Overview 4C165 Overview 5Warnings 6Batteries 6Before Using The Analyzer Every Time 7Fresh Air Purge 7Status Display 7Display Parameters 8Using The Four Function Buttons 9Using the Analyzer 10-17Combustion Test 10-11Combustion Test - Optional Nitric Oxide Sensor 12Commissioning Test 13Pressure/Temperature Test 13-14Heat Exchange Integrity Test 14-15Room CO Test 15-16C165 Printouts 17Using The Menu 18-19Using The C165 as a Thermometer or Pressure Meter 20Measuring Flue Gases (CO Protection Pump Operation) 21Where to Test 22-23Analyzer Problem Solving 24Frequently Asked Questions 24Product Registration 24Annual Service & Recertification 25Recertification Services 25Online Booking Procedure 25Returning Your Analyzer 26Where to Send Your Analyzer 26Cold Weather Precautions 26Analyzer Specification 27-28Electromagnetic Compatibility 28End of Life Disposal 28Product Registration 29Survey 30EN50379 Regulated Instructions 31Warranty Information 32