A.O. Smith BFM 30, BFM 50, BFM 80 installation instructions - page 7

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Figure 3 - Differential pressure switch

Figure 2 - Positioning ventilation

Contents

Main INTRODUCTION CONTENTS PAGE Page 1. GENERAL 1.1 Description of the appliance 1.2 Technical safety equipment 1.2.1 Gas control 1.2.2 Control box 1.2.3. Ventilation fan 1.2.4 Air proving switch Page 1.3 Technical description 1.3.1 Measurements Page 1.3.2 Technical data 2. FOR THE INSTALLER 2.1 Installation instructions 2.1.1 Installation 2.1.2 Water connections Unvented Page 2.1.3 Condensation drain 2.1.4 Gas connection 2.1.5 Flue connections (concentric) Page 2.1.6 Electrical connection Page Page 2.2 Turning the water heater on 2.2.1 Filling the water heater 2.2.2 Turning the water heater on 2.2.3 Setting up the pilot flame 2.3 Turning the water heater off 2.5 Checking the gas pressures 2.6 Conversion to another gas 2.7 Maintenance 2.8 Anode 2.9 Descale procedure Page 3. FOR THE USER 3.1. Instructions for use 3.1.2 Filling the water heater 3.1.3 Turning the water heater on 3.2 Usage 4. FAULT FINDING 4.1 Fault finding USER 4.2 Fault finding INSTALLER 4.3 Detailed fault finding INSTALLER Page Page Page 5. WARRANTY 5.1 Guarantee in general 5.2 Guarantee of the tank 5.3 Conditions for installation and use 5.4 Exclusions