Summary of the content on the page No. 1
2 28 8
3 30 0
5 5 0 0
6 60 0
Installation Installation Installation
User and User and User and
Service Manual Service Manual Service Manual
X XT TR RA A H HIIG GH H E EF FF FIIC CIIE EN NC CY Y
W W WA A AT T TE E ER R R P P PR R RO O OD D DU U UC C CT T TS S S
C C CO O OM M MP P PA A AN N NY Y Y
A A A D D DIV IV IVIS IS ISIO IO ION N N O O OF F F A A A. . . O O O. . . S S SM M MIT IT ITH H H C C CO O OR R RP P PO O OR R RAT AT ATIO IO ION N N
Summary of the content on the page No. 2
www.aosmithinternational.com your installer
Summary of the content on the page No. 3
gis Read this manual carefully Warning Read this manual carefully before starting up the water heater. Failure to read this manual and to follow the instructions in this manual may lead to accidents, personal injury, and damage to the appliance. Copyright © 2008 A.O. Smith water Products Company All rights reserved. Nothing from this publication may be copied, reproduced and/or published by means of printing, photocopying or by whatsoever means, without the prior written approval of A.O. Smi
Summary of the content on the page No. 4
gis 4 Instruction manual BFC
Summary of the content on the page No. 5
gis Table of contents 1 Introduction - - - - - - - - - - - - - - - - - - - - - - - - - - - 9 1.1 About the appliance - - - - - - - - - - - - - - - - - - - - - - - - - - - - 9 1.2 What to do if you smell gas- - - - - - - - - - - - - - - - - - - - - - - - - 9 1.3 Regulations - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 9 1.4 Target groups - - - - - - - - - - -
Summary of the content on the page No. 6
Table of contents 9 Starting and running - - - - - - - - - - - - - - - - - - - - - - 55 9.1 Introduction - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 55 9.2 Starting and running- - - - - - - - - - - - - - - - - - - - - - - - - - - - 55 9.3 The appliance's heating cycle - - - - - - - - - - - - - - - - - - - - - - - 55 10 Shutting down - - - - - - - - - - - - - -
Summary of the content on the page No. 7
16.2 Tank warranty - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 89 16.3 Conditions for Installation and use - - - - - - - - - - - - - - - - - - - - 89 16.4 Exclusions - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 90 16.5 Scope of the warranty - - - - - - - - - - - - - - - - - - - - - - - - - - 90 16.6 Claims - - - - - - - - - - - - - - - -
Summary of the content on the page No. 8
Table of contents 8 Instruction manual BFC
Summary of the content on the page No. 9
gis 1 Introduction 1.1 About the appliance This manual describes how to install, service and use the BFC appliance. The BFC appliance is a condensing water heater with a fan in the air intake. The BFC can be installed as either an open or room-sealed appliance. A concentric chimney connector is fitted standard to the appliance. Alternatively, the appliance can be connected using a parallel system. The alternative installation types are B23, C13, C33, C43, C53 and C63. The information in this
Summary of the content on the page No. 10
1 Introduction gis • regulations imposed by fire brigade, power companies and municipality. Furthermore, the installation must comply with the manufacturer's instructions. Note Later amendments and/or additions to all regulations, requirements and guidelines published on or prior to the moment of installing, will apply to the installation. The three target groups for this manual are: 1.4 Target groups • (end) users; • installation engineers; • service and maintenance engineers. Symbols on each
Summary of the content on the page No. 11
gis 1.6 Forms of notation The following notation is used in this manual: Note Important information. Attention Ignoring this information can lead to the appliance being damaged. Warning Failure to carefully read this information may lead to personal injury and serious damage to the appliance. Instruction manual BFC 11
Summary of the content on the page No. 12
1 Introduction gis 1.7 Overview of this The table provides an overview of the contents of this document. document Contents of this document Chapter Target groups Description Working principle of the This chapter describes how the appliance functions. appliance Installation This chapter describes the installation activity to be completed before you actually start up the appliance. Filling This chapter describes how to fill the appliance. Draining This chapter describes how to drain the applianc
Summary of the content on the page No. 13
gis 2 Working principle of the appliance 2.1 Introduction Topics covered in this chapter: • General working principle of the appliance; • The appliance's heating cycle; • Protection for the appliance; • Safety of the installation. 2.2 General working The figure shows a cut-away view of the appliance. principle of the Cut-away view of the appliance appliance Legend 1 16 Only applicable numbers are 2 mentioned. 17 3 1. cover 18 4 2. hot water outlet 3. electrical connector block 19 5 4. electro
Summary of the content on the page No. 14
2 Working principle of the appliance gis In this appliance the cold water enters the bottom of the tank via the cold water inlet (14). Once heated by the combustion chamber (8) and heat exchanger (11), the hot tapwater leaves the tank through the hot water outlet (2). Once the appliance is completely filled with water, it remains constantly under water supply pressure. As hot water is drawn from the appliance, it is immediately replenished with cold water. The air required for combustion is
Summary of the content on the page No. 15
gis 2.4.2 Water temperature protection The electronic controller uses temperatures sensors T1 (7) and T2 (13) to monitor three temperatures that are important for safety. The table explains the functioning of the temperature sensors. Temperature protection Protection Description Against frost The frost protection cuts in. The water is heated to 20°C. (T1 < 5°C or T2 < 5°C) For maximum water temperature The high-limit safeguard serves to prevent overheating and/or excessive (T1 > 85°C or T2 >
Summary of the content on the page No. 16
2 Working principle of the appliance gis 2.4.6 Flame probe To ensure that no gas can flow when there is no combustion, the water heater is fitted with a flame probe (21). The electronic controller uses this probe to detect the presence of a flame, by means of ionisation detection. The electronic controller closes the gas control the instant it detects that there is a gas flow but no flame. 2.5 Safety of the instal- lation In addition to the appliance's standard built-in safety monitoring, th
Summary of the content on the page No. 17
is 3 Installation Warning Installation work should be carried out by an approved installation engineer in compliance with the general and local regulations imposed by the gas, water and power supply companies and the fire service. The appliance may only be installed in a room that complies with the requirements stated in national and local ventilation regulations (1.3 "Regulations"). This chapter describes the installation activities to be carried out before you 3.1 Introduction actually st
Summary of the content on the page No. 18
3 Installation is 3.3.1 Air humidity and ambient temperature The boiler room must be frost-free, or be protected against frost. The table shows the environmental conditions that must be adhered to for correct functioning of the electronics present in the appliance to be guaranteed. Air humidity and ambient temperature specifications Air humidity and ambient temperature Air humidity max. 93% RV at +25°C Ambient temperature Functional: 0 < T < 60°C 3.3.2 Appliance maximum floor load In connectio
Summary of the content on the page No. 19
BB is If the available clearance is less than 100 cm, flexible magnesium anodes may be ordered. Note When installing the appliance, be aware that any leakage from the tank and/or connections can cause damage to the immediate environment or floors below the level of the boiler room. If this is the case, the appliance should be installed above a wastewater drain or in a suitable metal leak tray. The leak tray must have an appropriate wastewater drain and must be at least 5cm deep with a lengt
Summary of the content on the page No. 20
3 Installation is 3.4 Technical specifica- The appliance is supplied without accessories. Check the dimensions (3.4.1 "Dimensions of the appliance"), gas data (3.4.3 "Gas data") tions and other specifications (3.4.2 "General and electrical specifications") of any accessories you plan to use. 3.4.1 Dimensions of the appliance Plan and elevation of the appliance Hx Legend See the table. 3 Hy 30º Ny 2 5 6 4 45º 18º 45º D G 2 3 5 A N H K S 6 1 7 4 P W M R IMD-0073 R5 20 Instruction manual BFC
