Bosch Greentherm T9900 SE/i 199 User Manual

6 720 813 635 (2019/03) US
Installation and Operating Instructions
INDOOR RESIDENTIAL TANKLESS WATER HEATERS
Greentherm T9900 SE 160/199 | i 199
WARNING!
Improper installation, adjustment, alteration, service or maintenance can cause
injury or property damage. Refer to this manual. For assistance or additional infor-
mation consult a qualified installer, service agency or the gas supplier.
NOTICE
Upon completion of the installation, these instructions should be handed to the user
of the appliance for future reference.
160 000/199 000 Btu- Natural Gas | 160 000/199 000 Btu - Liquefied Petroleum
(LP) Gas

Bosch Greentherm T9900 SE/i 199 Specifications

General

Brand	Bosch
Model	Greentherm T9900 SE/i 199
Category	Water Heater
Language	English

Summary

Key to Symbols and Safety Instructions

Key to Symbols

Explains warning symbols like DANGER, WARNING, CAUTION, NOTICE.

Safety Instructions

Covers critical safety protocols for installation, operation, and maintenance.

Safety Information

Hazard Warnings and Scalding Chart

Details serious hazards and provides a chart on water temperature vs. scalding time.

Installation Instructions

Venting Requirements

Details approved vent materials, configurations, and specifications for safe exhaust.

Gas Piping and Connections

Instructions for connecting the gas supply, including sizing tables and safety.

Water Quality and Connections

Measuring Gas Pressure

Electrical Connections

Power Supply and Grounding

Requirements for electrical power supply, wiring, and grounding.

Operation Instructions

Safety Before Operation

Essential safety warnings and procedures before turning on the heater.

Temperature Settings and Modes

Service Menu and Calibration

Gas Conversion

Wi-Fi Connectivity

Maintenance and Service

Required Annual Maintenance

Schedule and procedures for yearly inspection and maintenance tasks.

Troubleshooting

Burner and Ignition Issues

Solutions for problems like burner not igniting or temperature output issues.

Water Flow and Temperature Problems

Gas Pressure and Air Adjustment

Procedures for adjusting gas pressure, air, and performing auto/manual tuning.

Error Code Diagnostics

Detailed list of error codes, their descriptions, and possible solutions.