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Instruction manual BFM 3
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Instruction manual BFM 5
Table of contents
1 Introduction - - - - - - - - - - - - - - - - - - - - - - - - - - - 7
2 Working principle of the appliance- - - - - - - - - - - - - - - 11
3 Installation - - - - - - - - - - - - - - - - - - - - - - - - - - - 17
4 Conversion to a different gas category - - - - - - - - - - - - 39
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Instruction manual BFM 7
1 Introduction
1.1 About the appliance
1.2 What to do if you smell gas
1.3 Regulations
1gis
1.4 Maintenance
1.5 Forms of notation
1.6 Target groups
Instruction manual BFM 9
1.7 Overview of this document
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2gis
Instruction manual BFM 13
2.3 The appliance's heating cycle
2.4 Protection for the appliance 2.4.1 Introduction
14 Instruction manual BFM
2gis
2.4.2 Water temperature protection
2.4.3 Pressure switch
2.4.4 Flame probe
Instruction manual BFM 15
2.5 Safety of the instal- lation
2.5.1 Unvented installation
2.5.2 Vented installation
2.5.3 T&P valve
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Instruction manual BFM 17
3 Installation
3.1 Introduction
3.2 Packaging
3.3 Ambient conditions
3.3.1 Air humidity and ambient temperature
18 Instruction manual BFM
3.3.2 Maximum floor load
3.3.3 Water composition
3.3.4 Working clearances
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Installation
20 Instruction manual BFM
3.4.1 Dimensions of the appliance
37
Plan and elevation of the appliance
Replacement of burner pressure regulator or blank plate BFM30-50-80-100 (2) = BFM 100, 120
Instruction manual BFM 21
3.4.2 General and electrical specifications
22 Instruction manual BFM
3.4.3 Gas data
Instruction manual BFM 23
3.5 Installation diagram 3.5.1 Installation
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Instruction manual BFM 25
3.6.5 Circulation pipe
3.7 Water connections, Unvented
3.7.1 Cold water side
3.7.2 Recirculation pipe
26 Instruction manual BFM
3.7.5 Circulation pipe
3.8 Gas connection
C
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28 Instruction manual BFM
3.9.3 Concentric wall flue terminal BFM 30-50-80
3.9.4 C13 concentric wall flue terminal specifications (BFM 30, 50, 80)
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30 Instruction manual BFM
3.9.6 C33 concentric roof flue terminal specifications (BFM 30, 50, 80)
3.9.7 Installing chimney flue components for BFM 100, 120
Instruction manual BFM 31
3.9.8 Concentric wall flue terminal BFM100, 120
32 Instruction manual BFM
3.9.9 C13 concentric wall flue terminal specifications (BFM 100, 120)
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34 Instruction manual BFM
3.9.11 C33 concentric roof flue terminal specifications (BFM 100, 120)
3.10 Electrical connection
Instruction manual BFM 35
3.10.1 Connecting the mains power
36 Instruction manual BFM
3.11 Checking the supply pressure and burner pressure
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Instruction manual BFM 39
4 Conversion to a different gas category
4.1 Conversion
40 Instruction manual BFM
4is
4.2 Orifice replacement
Instruction manual BFM 41
4.3 Replacement of burner pressure regulator or blank plate BFM30-50-80- 100
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5 Filling
44 Instruction manual BFM
5gis
5.1 Filling unvented installations
5.2 Filling vented instal- lations
6 Draining
46 Instruction manual BFM
6gis
6.1 Draining unvented installations
Instruction manual BFM 47
6.2 Draining vented installations
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Instruction manual BFM 49
7 The control panel
7.1 Introduction
7.2 Control panel
7.3 Explanation of icons
7.4 ON/OFF switch
7gis
7.6 Burner control reset button
Instruction manual BFM 51
8 Status of the appliance
8.1 Introduction
8.2 Operating modes
8.3 Error conditions
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Instruction manual BFM 53
9 Starting and running
9.1 Introduction
9.2 Starting the appliance
9.3 The appliance's heating cycle
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10 Shutting down
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Instruction manual BFM 57
11 Troubleshooting
11.1 Introduction
Instruction manual BFM 58
11.2 Troubleshooting: general errors
Instruction manual BFM 59
11.3 Troubleshooting: insufficient hot water
Instruction manual BFM 60
11.4 Troubleshooting: No hot water
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Instruction manual BFM 63
s
12 Performing maintenance
12.1 Introduction
12.2 Preparation for maintenance
64 Instruction manual BFM
12 s
12.3 Water-side mainte- nance 12.3.1 Introduction
12.3.2 Checking the anodes
12.3.3 Descaling and cleaning the tank
s
12 s
Instruction manual BFM 67
13 Warranty (certificate)
13.1 General warranty
13.2 Tank warranty
13.3 Conditions for Instal- lation and use
68 Instruction manual BFM
13 gis
13.4 Exclusions
13.5 Scope of the warranty
13.6 Claims
13.7 Obligations of A.O. Smith
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Electrical diagram
70 Instruction manual BFM
14 is
14.2 BFM Electrical Diagram.
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Index
