The fuel codes are: F1 = Natural Gas F2 = Oil #2 F3 = LPG F4 = Kerosene Example: “F1” denotes Natural Gas Bacharach, Inc. 621 Hunt Valley Circle, New Kensington, PA 15068 Ph: 724-334-5000 • Fax: 724-334-5001 • Toll Free: 800-736-4666 Website: • E-mail: help@bacharach-inc.com - 5 - - 6 - Printed in U.S.A. 5. Press the ▲ or ▼ button to display the “Stack Temperature & Efficiency” Screen. H00I 18.1 6. 7. 8. 9. Insert probe into the burner’s flue-gas stream (see Sampling Locations o

Fan Assist or Power Vented Furnace/Boiler 02, CO, Stack Temp. Combustion Air Sampling Point 90% Eff. Condensing Furnace/Boiler BACHARAOi’ Measurable Difference Fyrite® Tech 50 & 60 Quick Start Guide 24-9429 Rev. 1 - September 2003 This Guide provides basic information about how to turn ON the analyzer and conduct a combustion efficiency test. Detailed information concerning the analyzer’s operation, set up, and calibration is contained in Instruction 24-9428. Turning ON the Analyzer

Allow the probe to cool before handling (about 5 minues). 10. End a test by first removing the probe from the flue-gas stream, and then allowing the pump to run until the O2 reading reaches approximately 20.9%. Turning OFF the Analyzer 11. Turn OFF the analyzer by pressing the I/O button. There is a 5-second delay before the analyzer actually turns OFF, during which time the unit can be turned back ON by pressing the ENTER button. A Fyrite Tech 60 will not turn OFF if a high level of CO is s