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Version 2.21

150 NPE Service Manual

8.3 Inspection Report

Inspection Items References Date: Date:

Visual Inspection for General

Signs of Corrosion

YES / NO

Checking and Adjusting the

Gas/Air Ratio

YES / NO

Checking Flue Gas YES / NO

Carrying Out a Water Leak

Test in Operation

YES / NO

Carrying Out a Gas Leak Test

in Operation

YES / NO

Checking Hot Water

Temperature and Flow

YES / NO

Checking Noise YES / NO

Checking Venting Systems YES / NO

Checking the front panel. YES / NO

8.4 Maintenance Report

Inspection Items References Date: Date:

Draining the Water Heater

and Cleaning the Inlet Water

Filter

YES / NO

Cleaning the Return Filter YES / NO

Checking the Intake Air Filter YES / NO

Flushing the Heat Exchanger YES / NO

Replacement of Parts

Navien NPE-150S Service Manual

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