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520-HN -L
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 (36 pages)
Brand:
Bosch
| Category:
Boiler
| Size: 2.88 MB
Table of Contents
2
Table of Contents
3
1 Key to Symbols and Safety Instructions
3
Key to Symbols
3
General Safety Instructions
6
2 Warning
7
3 Appliance Details
7
520 HN Specifications (Technical Data)
8
Unpacking the 520 HN Heater
8
General Rules to Follow for Safe Operation
10
Dimensions and Installation Clearances
11
4 Installation Instructions
11
Introduction
11
Proper Location for Installing Your Heater
11
Mounting Heater
13
Combustion Air Requirements
13
Venting
14
1Horizontal Venting
14
2Vertical Venting
16
Gas Piping & Connections
20
Measuring Gas Pressure
20
Water Connections
21
Recirculation Application
21
5 Operation Instructions
21
For Your Safety Read before Operating
21
Your Water Heater
21
Lighting Instructions
22
To Turn Off Appliance
22
Adjusting the Water Temperature
23
Power Adjustment Knob
23
Draining the Appliance
24
6 Maintenance and Service
24
Maintenance Intervals
24
Water Valve
25
Pilot
25
Main Burners
25
Vent Assembly / Heat Exchanger
25
Mineral Scale Build-Up
25
1Descaling Heat Exchanger
26
7 Troubleshooting
26
Introduction
26
No Spark at Pilot with Water Flow
26
Spark Appears When Hot Water Is Turned On, but Pilot and Burners Will Not Ignite
27
Pilot Lights, but Burners Will Not Come On
28
Main Burners Go Out During Hot Water Use
28
Hot Water Temperature Fluctuates at Tap
29
Water Is Too Hot
29
Water Is Not Hot Enough
29
Burners Ignite Without Hot Water Flow
29
7.10 Low Hot Water Pressure
30
7.11 Noise When Heater Is Running
30
Burners Do Not Operate Cleanly; Yellow Flames When Operating
30
8 Protecting the Environment
31
9 Interior Components and Diagram Parts List
31
Interior Components
32
Components Diagram
33
Parts List
34
10 Lifetime Limited Warranty for Bosch Tankless Water Heaters
35
11 Installer Checklist To Be Completed By Installer Upon
35
Installation
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