Carrier 398A Operations Instructions

DEALER SERVICE BULLETIN Number: DSB 09-0022 Date: 4/809 Supersedes: DSB 07-0049 Title: 90% Furnace Heat Exchanger Inspection Procedu

SMB 09-0022 90% Furnace Inspection Instruction 10 Remove and clean the flame sensor with fine steel wool Blow out a

SMB 09-0022 90% Furnace Inspection Instruction 11Restricted heat exchanger (primary or secondary) Action must be t

SMB 09-0022 90% Furnace Inspection Instruction 12 F. Re-install the burner box Note: The burner box should be fu

SMB 09-0022 90% Furnace Inspection Instruction 13 Repair or replace as necessary I. Check vent termination Vent t

SMB 09-0022 90% Furnace Inspection Instruction 14If an evaporator coil is installed and the delta plate on the coil

SMB 09-0022 90% Furnace Inspection Instruction 15 If soot is present on all parts (primary h

SMB 09-0022 90% Furnace Inspection Instruction 16 Inspect the inlets of the secondary heat exchanger. I

SMB 09-0022 90% Furnace Inspection Instruction 17 After the heat exchanger is inspected and ser

SMB 09-0022 90% Furnace Inspection Instruction 1890% Furnace Secondary Heat Exchanger Inspection Certificate Fax to

SMB 09-0022 90% Furnace Inspection Instruction 2 This procedure and the 90% Furnace Heat Exchanger Inspection Certi

SMB 09-0022 90% Furnace Inspection Instruction 3Follow all Local Codes. In the absence of local codes, consult the

SMB 09-0022 90% Furnace Inspection Instruction 4 These conditions indicate a possible: Split heat exchanger seam

SMB 09-0022 90% Furnace Inspection Instruction 5 Take a flue gas reading and record the CO value Is the CO level

SMB 09-0022 90% Furnace Inspection Instruction 6Place an “X” in the box next to each item as you inspect the system

SMB 09-0022 90% Furnace Inspection Instruction 7 Temperature rise adjusted to mid-range per installation instructio

SMB 09-0022 90% Furnace Inspection Instruction 8b) Conversion Rating Plate Label c) Gas Control Conversion Label

SMB 09-0022 90% Furnace Inspection Instruction 9 To clean the blower assembly: Disconnect power from furnace R