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General| Brand | Bosch |
|---|---|
| Model | GWH 425 HN |
| Category | Water Heater |
| Language | English |
Crucial safety advice regarding installation, fire, and explosion risks.
Step-by-step actions if gas odor is detected.
Cautions against improper installation, adjustment, and service.
Specifies minimum distances to combustible materials.
Importance of adequate air supply and proper venting for safe operation.
Specifies height and location for vent termination.
Guidance for venting into exterior masonry chimneys.
Procedure to test for proper venting and safety.
Specifies required inlet gas pressure for different altitudes.
Tables for determining correct pipe size based on BTU and length.
Tables for sizing natural gas and LP gas lines.
Instructions for installing the PRV and discharge line.
Essential safety steps before turning the unit on.
Procedure for safely shutting down the water heater.
How to set the desired hot water temperature.
Covers annual checks, vent, water valve, pilot, burners, scale.
Common causes and solutions for lack of pilot spark.
Reasons why burners won't light after pilot ignition.
Diagnosing pilot, burner ignition, and shut-off issues.
Troubleshooting issues with water being too hot or too cold.
Addressing issues with unstable or interrupted hot water.
Steps taken before the unit begins operation.
Sequence of events for lighting pilot and main burners.
Continuous safety checks during operation.
Explains coverage for heat exchanger and other parts.
Lists conditions under which warranty is void.
Covers labor costs and how to make a warranty claim.
