Navien CR-180(A) User Manual

Explains safety alert symbols and their meanings for hazard identification.

Essential guidelines for safe installation, operation, and maintenance.

Details dangers of flammable liquids and vapors near the water heater.

Instructions for gas leaks and importance of a proper venting system.

Warns about scalding hazards from high water temperatures and settings.

Details the warranty periods for heat exchangers and other components.

Outlines conditions not covered by the warranty and labor allowance.

Explains Navien water heater model series and their specifications.

Illustrates and labels key external components of the water heater.

Describes the features, buttons, and indicators of the remote controller.

Instructions for setting the clock and basic remote controller operations.

Step-by-step guide to set and adjust the hot water temperature.

How to set the recirculation timer for 'A' series models.

Procedure to lock and unlock the remote controller for safety.

Explains built-in circulation functions for 'A' series models.

Guidance on using the water heater for space heating systems.

Instructions for cleaning the exterior of the water heater and remote.

Step-by-step procedure to safely drain the water heater.

Procedure for cleaning the cold water inlet filter.

Instructions for accessing and cleaning the air intake filter.

Guidance on preventing freezing damage and protection functions.

Addresses common problems, their potential causes, and solutions.

Lists error codes, reasons, and self-diagnostic/action steps.

Exploded views and parts list for the unit's case assembly.

Exploded views and parts list for the burner assembly.

Exploded views and parts list for the water way assembly.

Information for contacting Navien for adjustment, repair, or maintenance.