Bosch 330-PN-N - User Manual

INDOOR MODEL Flow Modulated with Standing pilot
330 PN
Warning: If the information in this manual is not followed exactly, a fire or
explosion may result causing property damage, personal injury or death.
Do not store or use gasoline or other flammable vapor and liquids in the vicinity
of this or any other appliance.
Improper installation, adjustment, alteration, service or maintenance can
cause injury or property damage. Refer to this manual. For assistance or addi-
tional information consult a qualified installer, service agency or the gas sup-
plier. In the Commonwealth of Massachusetts this product must be installed
by a licensed plumber or gas fitter.
Upon completion of the installation, these instructions should be handed to
the user of the appliance for future reference.
What to do if you smell gas
• Close gas valve. Open windows.
• Do not try to light any appliance.
• Do not touch any electrical switch; do not use any phone in your building.
• Immediately call your gas supplier from a neighbor’s phone. Follow the
gas supplier’s instructions.
• If you cannot reach your gas supplier, call the fire department.
• Installation and service must be performed by a qualified installer, ser-
vice agency or the gas supplier
330-PN-N - for use with Natural Gas / 330-PN-L - for use with Liquefied Petroleum (LP) Gas
6 720 644 951 (2014/11) US
Suitable for heating potable water only - Not approved for space heating purposes
(Intended for variable flow applications with steady cold water inlet temperatures)

Summary

Key to Symbols and Safety Instructions

Safety Instructions

Provides essential safety guidelines for installation, operation, and maintenance.

Warning

General Warnings and Precautions

Covers fire danger, toxic chemicals, appliance malfunction, and property damage risks.

Appliance Details

330 PN Specifications (Technical Data)

Presents technical data including capacity, gas requirements, connections, and dimensions.

General Rules for Safe Operation

Essential guidelines for ensuring safe and proper operation of the appliance.

Dimensions and Installation Clearances

Installation Instructions

Proper Location for Installing Your Heater

Guidance on selecting an appropriate location considering safety and ventilation.

Heater Placement and Clearances

Mounting Heater

Combustion Air Requirements

Specifies the necessary airflow for proper combustion and operation.

Venting

Guidelines for the safe and effective venting of exhaust gases.

Gas Piping & Connections

Procedures for connecting the gas supply line to the appliance.

Measuring Gas Pressure

Steps for testing and verifying proper gas pressure for operation.

Water Connections

Instructions for connecting the water inlet and outlet lines.

Connecting the Pressure Relief Valve (PRV)

Operation Instructions

Safety Before Operating

Critical safety warnings to read before initial operation of the water heater.

Lighting Instructions

Setting the Water Temperature

Draining Water from Heater

Maintenance and Service

Maintenance Intervals

Troubleshooting

Pilot Does Not Light

Steps to diagnose and fix issues with the pilot not igniting.

Pilot Lights, But Goes Out When Button Is Released

Troubleshooting steps for when the pilot light fails to stay lit.

Pilot Goes Out During or After Hot Water Use

Solutions for pilot outage issues occurring during or after hot water usage.

Burners Do Not Light With Water Flow

Troubleshooting steps when burners fail to ignite upon water flow.

Hot Water Temperature Fluctuates at Tap

Addresses issues causing inconsistent hot water temperatures.

Water Is Too Hot

Water Is Not Hot Enough

Burners Ignite Without Hot Water Flow

Low Hot Water Pressure

Burners Do Not Operate Cleanly; Yellow Flames

Installer Checklist

Installer Checklist to be completed by installer upon installation

A checklist for installers to verify proper installation and settings.

Bosch 330-PN-N Specifications

General

Brand	Bosch
Model	330-PN-N
Category	Water Heater
Language	English