Noritz EZ98 - 12. Rejoin Primary SS HEX and Burner Chamber; Securing HEX and Burner Chamber; 13. Assemble Primary SS HEX and Secondary SS HEX; Assembling SS HEX Components

Heat Exchanger Replacement Procedure
Diagram
(2) Join Primary SS HEX and Burner Chamber with
8 screws(M4×18).
When tightening is over, please check again
for looseness of screws
(3) Attach Mounting Plate - Chamber to Burner Chamber.
13.Assemble Primary SS HEX and new Secondary SS HEX
(1) Replace new Gasket - Secondary Heat Exchanger
with a new one.
(2) Join Primary SS HEX and new Secondary SS HEX
with 16 screws(M4×10).
Page 14
Procedure
(3)
(2)
Recheck looseness
(1)
e.g. EZ111DV
(2)
e.g. EZ111DV