Watts AERCO Edge CFR 3000 Operator's And Service Manual page 3

CONTENTS
6.1 OUTDOOR AIR RESET MODE ............................................................................................................ 31
6.1.1 Outdoor Air Temperature Sensor Installation ................................................................................................ 31
6.1.2 Outdoor Reset Mode Setup ............................................................................................................................ 31
6.2 CONSTANT SETPOINT MODE ........................................................................................................... 32
6.3 REMOTE SETPOINT MODE ................................................................................................................ 33
6.4 DIRECT DRIVE MODES....................................................................................................................... 33
6.5 COMBINATION CONTROL SYSTEM (CCS) ....................................................................................... 34
6.5.1 Combination Control System Field Wiring ...................................................................................................... 35
6.5.2 Combination Control System Setup and Startup ............................................................................................ 35
SECTION 7. BOILER SEQUENCING TECHNOLOGY ........................................................36
7.1 INTRODUCTION ................................................................................................................................... 36
7.1.1 Installation Notes ............................................................................................................................................ 36
7.2 BST IMPLEMENTATION INSTRUCTION ............................................................................................ 37
7.2.1 BST Setup: Constant Setpoint ......................................................................................................................... 39
7.2.2 BST Setup: Remote Setpoint ........................................................................................................................... 39
7.2.3 BST Setup: Outdoor Air Temperature Reset ................................................................................................... 40
SECTION 8. MAINTENANCE ..............................................................................................42
8.1 MAINTENANCE SCHEDULE ............................................................................................................... 42
8.2 IGNITER-INJECTOR ............................................................................................................................ 42
8.3 FLAME DETECTOR ............................................................................................................................. 43
8.4 SAFETY DEVICE TESTING ................................................................................................................. 44
8.5 BURNER INSPECTION ........................................................................................................................ 44
8.6 CONDENSATE DRAIN TRAP .............................................................................................................. 44
8.7 AIR FILTER CLEANING AND REPLACEMENT .................................................................................. 45
8.8 SHUTTING BOILER DOWN FOR EXTENDED PERIOD ..................................................................... 46
8.9 RETURNING THE BOILER TO SERVICE AFTER SHUTDOWN ........................................................ 46
8.10 RECOMMENDED PERIODIC TESTING ............................................................................................ 46
8.11 RECOMMENDED SPARES ............................................................................................................... 48
SECTION 9. TROUBLESHOOTING ....................................................................................49
9.1 INTRODUCTION ................................................................................................................................... 49
9.2 ADDITIONAL FAULTS WITHOUT SPECIFIC FAULT MESSAGES .................................................... 57
SECTION 10. APPENDIX A: WIRING SCHEMATICS ...........................................................59
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