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INSTALLATION AND OPERATION INSTRUCTIONS

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

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 ..............................................1-19

1.7 GAS PIPING.................................................1-25

1.8 ELECTRICAL CONNECTIONS ..................................1-26

2.0 BOILER SYSTEMS AND OPERATION .................................2-1

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

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

2.3 USER INTERFACE ............................................2-1

2.4 ACCESS LEVELS .............................................2-2

2.5 SEQUENCE OF OPERATION ....................................2-4

2.6 OTHER OPERATING FEATURES .................................2-6

2.7 SET UP & LOAD DEFINITION ...................................2-10

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

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

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

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

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 45-225 PARTS DIAGRAMS ..................................6-2

6.2 VFC 15-150 PARTS DIAGRAMS ..................................6-4

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

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

6.5 SEQUENCE OF OPERATIONS ..................................6-10

CONTENTS

IBC VFC 45-225 Manual

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