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A.O. Smith
Water Heater
BFC-120
A.O. Smith BFC-120 User Manual
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Contact information
If you have any comments or questions, please contact:
A.O. Smith Water Products Company
Adress:
PO Box 70
5500 AB Veldhoven
The Netherlands
Telephone:
0870 - AOSMITH (free)
0870 - 267 64 84
General:
+31 40 294 25 00
Fax:
+31 40 294 25 39
E-mail:
info@aosmith.nl
Website:
www.aosmith.co.uk
In the event of problems with your gas, electricity or water supply connections, contact
your supplier.
0311753_SGS_28-120_II_UKUK_V2.0 , 2017-05-03
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Table of Contents
Default Chapter
3
Preface
3
Copyright
3
Trademarks
3
Warranty
3
Liability
3
Compliance
3
Regulations
4
Contact Information
5
About this Manual
7
Scope
7
Target Group
7
Notation Conventions
7
Document Identification
8
Table of Contents
9
User Part
13
1 Introduction
15
2 Safety
17
3 Interface
19
Operator Interface
19
Explanation of Icons
19
Control Switch
20
Buttons
20
PC Connection
21
Status of the Water Heater
21
Operating Modes
21
Error Conditions
22
Service Conditions
23
Anode Warning
23
Q/T Sensor Warning
23
Collector Temperature Warning
23
4 Use
25
Turn on the Water Heater
25
The Appliance's Heating Cycle
25
Turn off the Water Heater
27
Turn off for a Short Period
27
Isolate from the Mains
27
Turn off for a Long Period
28
Main Menu
28
Notation Conventions for Menu-Related Instructions
28
Switching to on Mode
29
Setting the Water Temperature
29
Week Program
30
Starting and Stopping the Week Program
30
Changing the Appliance's Standard Week Program
30
Adding Times to a Week Program
33
Deleting Times from a Week Program
34
Extra Period
35
Settings
37
Setting Day and Time
38
Installation, Maintenance and Service Part
41
5 Introduction
43
About the Water Heater
43
The Appliance's Heating Cycle
43
Working Principle
43
Operating Cycle
45
6 Safety
47
Safety Instructions
47
Instructions on the Water Heater
48
Safety Devices
49
Protection for the Water Heater
49
Safety of the Installation
50
Protection for the Solar Heating System
51
Safety of the Solar Heating System
51
Environmental Aspects
52
Recycling
52
Disposal
52
7 Installation
53
Packaging
53
Conditions
53
Ambient Conditions
53
Maximum Floor Load
53
Water Composition
54
Working Clearances
54
Storage Tank Working Clearances
55
Installation Diagram
56
Water Connections
57
Unvented Water Connections
57
Vented Water Connections
58
Gas Connection
59
Solar Heating System
59
Venting System
59
C13/C33 Concentric Systems
61
C13/C33 Parallel Systems
62
C43/C53/C63 Systems
64
Electrical Connections
65
Preparation
66
Mains Power
66
Optional Electrical Connections
67
Electrical Connection of the Solar Heating System
68
Commissioning
70
Filling
70
Procedure for Checking the Supply Pressure
72
Procedure for Checking the Gas Control Valve Pressure
74
CO 2 Adjustment
75
Switching Pressure Measurement
77
Turn on the Water Heater
78
Decommisioning
78
Turn off the Water Heater
78
Draining
78
Draining Vented Installations
79
8 Conversion of Gas Type
81
9 Settings
83
Operator Interface
83
Service Program
83
Hysteresis
83
Display the Error History
84
Display the Water Heater History
84
Display the Selected Water Heater
84
Setting the Service Interval
85
Service Mode
85
Setting Legionella Prevention
86
Solar Heating System Configuration
87
Setting the Central Heating Configuration
89
10 Maintenance
91
Preparation
91
Water-Side Maintenance
92
Descale the Tank
92
Clean the Condensate Drain
93
Gas-Side Maintenance
93
Clean the Burner
93
Clean the Heat Exchanger
93
Solar Collector Maintenance
94
Finalization
94
11 Troubleshooting
95
Errors and Warnings
95
General Errors
96
Displayed Errors
97
Warnings
102
12 Appendices
105
Technical Details
105
Dimensions
109
Gas Details
113
Week Program Card
115
Electrical Wiring Diagram
117
Electrical Wiring Diagram Solar Heating System
119
Menu Structure
120
Declaration of Conformity
121
Warranty
122
Index
125
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A.O. Smith BFC-120 Specifications
General
Brand
A.O. Smith
Model
BFC-120
Category
Water Heater
Language
English
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