Heat Exchanger Replacement Procedure
Diagram
18. Attach Pipes for NRCB199DV/NRCB180DV
(Refer to page 19 for EZ111DV/EZ98DV or NCC199CDV.)
(1) Put Pipe - Pump Outlet - Elbow to Secondary SS HEX
and fix it with 2 "C" Clamps.
(2) Attach Pipe - T-Elbow to Relief Valve Connection, T-Elbow
and Pipe - T-Elbow to Distribution Valve - Heating
with 4 "C" Clamps.
Page 20
Procedure
(2)
(2)
(2)
(1)
(1)
(2)