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INSTALLATION AND OPERATION INSTRUCTIONS

VFC 15-150, VFC 45-225 MODULATING GAS BOILERS

CONTENTS

1.0 INSTALLATION....................................................1-1

1.1 GENERAL ...................................................1-1

1.2 CODE REQUIREMENTS ........................................1-2

1.3 LOCATION ...................................................1-2

1.4 EXHAUST VENTING AND AIR INTAKE.............................1-3

1.5 CONDENSATE REMOVAL......................................1-14

1.6 WATER PIPING ..............................................1-20

1.7 GAS PIPING.................................................1-26

1.8 ELECTRICAL CONNECTIONS ..................................1-27

2.0 IBC BOILER CONTROL.............................................2-1

2.1 GENERAL ...................................................2-1

2.2 CONTROL ...................................................2-1

2.3 CONTROL INTERFACE.........................................2-2

3.0 STARTUP AND COMMISSIONING ....................................3-1

3.1 LIGHTING AND SHUTTING DOWN THE BOILER ....................3-1

3.2 PRIOR TO START-UP ..........................................3-2

3.3 COMMISSIONING .............................................3-2

3.4 FUEL CONVERSION ...........................................3-5

4.0 MAINTENANCE ...................................................4-1

4.1 BOILER MAINTENANCE ........................................4-1

4.2 COMPONENT DESCRIPTION....................................4-4

4.3 GAINING ACCESS TO COMBUSTION CHAMBER, BURNER REMOVAL

INSTRUCTIONS; FAN AND GAS VALVE REMOVAL INSTRUCTIONS ....4-6

5.0 TROUBLESHOOTING ..............................................5-1

5.1 PRELIMINARY CHECKS ........................................5-1

5.2 ELECTRONIC COMPONENTS ...................................5-2

5.3 TROUBLESHOOTING GUIDE....................................5-6

6.0 DIAGRAMS.......................................................6-1

6.1 VFC 15-150 PARTS DIAGRAMS ..................................6-2

6.2 VFC 45-225 PARTS DIAGRAMS ..................................6-4

6.3 ADDITIONAL PARTS DIAGRAMS .................................6-6

6.4 WIRING DIAGRAMS ...........................................6-7

6.5 SEQUENCE OF OPERATIONS ...................................6-9

IBC VFC 45-225 User Manual

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