Noritz EZTR50 - Unit Disassembly - Initial Steps; Remove Front Cover

Heat Exchanger Replacement Procedure
Diagram
* EZ111DV/EZ98DV or NCC199CDV: 3 screws
NRCB199DV/NRCB180DV: 2 screws
Page 4
(2) Remove the screws(M4×12)* that hold Circuit Board.
(1) Remove 2 ground wires.
Procedure
2. Remove Front Cover
(1) Disconnect electrical power to the unit.
(2) Remove 4 screws w/ washer(M4×12).
3. Remove ground wires
NRCB199DV/NRCB180DV
(2)
(1)
e.g. EZ111DV
EZ111DV/EZ98DV or NCC199CDV
(2)
EZ111DV/EZ98DV or NCC199CDV
(2)
NRCB199DV/NRCB180DV
(2)