Bosch 520-HN -L Manuals

Manuals and User Guides for Bosch 520-HN -L. We have 1 Bosch 520-HN -L manual available for free PDF download: Manual

Bosch 520-HN -L Manual

Bosch 520-HN -L Manual (36 pages)

Brand: Bosch | Category: Boiler | Size: 2.88 MB
Table of contents
Table Of Contents2................................................................................................................................................................
Key To Symbols And Safety Instructions3................................................................................................................................................................
Key To Symbols3................................................................................................................................................................
General Safety Instructions3................................................................................................................................................................
Warning6................................................................................................................................................................
Appliance Details7................................................................................................................................................................
520 Hn Specifications (technical Data)7................................................................................................................................................................
Unpacking The 520 Hn Heater8................................................................................................................................................................
General Rules To Follow For Safe Operation8................................................................................................................................................................
Dimensions And Installation Clearances10................................................................................................................................................................
Installation Instructions11................................................................................................................................................................
Introduction11................................................................................................................................................................
Proper Location For Installing Your Heater11................................................................................................................................................................
Mounting Heater11................................................................................................................................................................
Combustion Air Requirements13................................................................................................................................................................
Venting13................................................................................................................................................................
1horizontal Venting14................................................................................................................................................................
2vertical Venting14................................................................................................................................................................
Gas Piping & Connections16................................................................................................................................................................
Measuring Gas Pressure20................................................................................................................................................................
Water Connections20................................................................................................................................................................
Recirculation Application21................................................................................................................................................................
Operation Instructions21................................................................................................................................................................
For Your Safety Read Before Operating21................................................................................................................................................................
Your Water Heater21................................................................................................................................................................
Lighting Instructions21................................................................................................................................................................
To Turn Off Appliance22................................................................................................................................................................
Adjusting The Water Temperature22................................................................................................................................................................
Power Adjustment Knob23................................................................................................................................................................
Draining The Appliance23................................................................................................................................................................
Maintenance And Service24................................................................................................................................................................
Maintenance Intervals24................................................................................................................................................................
Water Valve24................................................................................................................................................................
Pilot25................................................................................................................................................................
Main Burners25................................................................................................................................................................
Vent Assembly / Heat Exchanger25................................................................................................................................................................
Mineral Scale Build-up25................................................................................................................................................................
1descaling Heat Exchanger25................................................................................................................................................................
Troubleshooting26................................................................................................................................................................
No Spark At Pilot With Water Flow26................................................................................................................................................................
Spark Appears When Hot Water Is Turned On, But Pilot And Burners Will Not Ignite26................................................................................................................................................................
Pilot Lights, But Burners Will Not Come On27................................................................................................................................................................
Main Burners Go Out During Hot Water Use28................................................................................................................................................................
Hot Water Temperature Fluctuates At Tap28................................................................................................................................................................
Water Is Too Hot29................................................................................................................................................................
Water Is Not Hot Enough29................................................................................................................................................................
Burners Ignite Without Hot Water Flow29................................................................................................................................................................
7.10 Low Hot Water Pressure29................................................................................................................................................................
7.11 Noise When Heater Is Running30................................................................................................................................................................
Burners Do Not Operate Cleanly; Yellow Flames When Operating30................................................................................................................................................................
Protecting The Environment30................................................................................................................................................................
Interior Components And Diagram Parts List31................................................................................................................................................................
Interior Components31................................................................................................................................................................
Components Diagram32................................................................................................................................................................
Parts List33................................................................................................................................................................
Lifetime Limited Warranty For Bosch Tankless Water Heaters34................................................................................................................................................................
Installation35................................................................................................................................................................

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