A.O. Smith BFM - 100, BFM

Electrical diagram

70 Instruction manual BFM

14 is

14.2 BFM Electrical

Diagram.

1 = brown, 2 = blue, 3 = yellow/green, 4 = black, 5 = white, 6 = red, 7 = white/orange, 8 = white/purple,

9 = black/green, 10 = black/red, 11 = black/white

230VAC

FAN PVC

50 Hz

NL SSSS

1234

PVC

0305485 R2

Contents

Main Page Instruction manual BFM 3 Read this manual carefully Trademarks Liability More information Page 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 Page 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 Page Page 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 Page 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 Page 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 Page 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 Page 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) Page 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) Page 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 Page Page 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 Page 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 Page 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 Page Instruction manual BFM 53 9 Starting and running 9.1 Introduction 9.2 Starting the appliance 9.3 The appliance's heating cycle Page 10 Shutting down Page 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 Page Page 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 Page Electrical diagram 70 Instruction manual BFM 14 is 14.2 BFM Electrical Diagram. Page Page Index