Rinnai Sensei N-Series Service Presentation page 29

Heat Exchanger Assembly Removal
Next, ensure the water supply is turned off and pressure bled from system
1. Remove stainless steel clip stamped 18-28 on hot water outlet line. Pull line loose from fitting.
2. Remove stainless steel clip stamped 14-23 on bypass line. Pull line loose from fitting.
3. Remove stainless steel clip stamped 14-20 on inlet water line to secondary heat exchanger.
4. Removal condensate hose wire clamp and hose
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PROPRIETARY and CONFIDENTIAL
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Enhancing Lives By Changing The Way Water Is Heated
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11/6/2018