User Manual

RECON Water Heaters Installation, Operation & Maintenance Manual
OMM-0103_0A AERCO International, Inc.  100 Oritani Dr.  Blauvelt, NY 10913 Page 5 of 178
GF-147 Phone: [phone] PRI: 10/28/2014
5.12 SAFETY PRESSURE RELIEF VALVE TEST ..................................................................... 78
CHAPTER6:MAINTENANCE...........................................................................................................79
6.1 MAINTENANCE SCHEDULE ............................................................................................... 79
6.2 IGNITER-INJECTOR ............................................................................................................ 80
6.3 FLAME DETECTOR ............................................................................................................. 82
6.4 COMBUSTION CALIBRATION ............................................................................................. 82
6.5 SAFETY DEVICE TESTING ................................................................................................. 82
6.6 FIRESIDE INSPECTION ...................................................................................................... 83
6.7 WATERSIDE INSPECTION .................................................................................................. 87
6.7.1AnodeBlockReplacement.............................................................................................................88
6.8 HEAT EXCHANGER CLEANING ......................................................................................... 89
6.8.1PumpingSystemSet‐Up.................................................................................................................90
6.8.2CleaningProcedure........................................................................................................................91
6.8.3TestingHydroSkrubEffectiveness..................................................................................................92
6.9 CONDENSATE DRAIN TRAP .............................................................................................. 92
6.10 AIR FILTER REPLACEMENT ............................................................................................. 93
6.11 LOW WATER CUTOFF (LWCO) CAPACITOR INTEGRITY TEST .................................... 94
6.11.1LowWaterCutoff(LWCO)‐CapacitorElectricalShortTest........................................................95
6.11.2LowWater
Cutoff(LWCO)‐StandardC‐MoreTest.....................................................................97
6.12 SHUTTING THE WATER HEATER DOWN FOR AN EXTENDED PERIOD OF TIME ...... 98
6.13 PLACING THE HEATER BACK IN SERVICE AFTER A PROLONGED SHUTDOWN ...... 98
CHAPTER7:TROUBLESHOOTINGGUIDE...................................................................................99
7.1 INTRODUCTION .................................................................................................................. 99
7.2 ADDITIONAL FAULTS WITHOUT SPECIFIC FAULT MESSAGES ................................... 111
CHAPTER8:WATERHEATERMANAGEMENT.......................................................................115
8.1 GENERAL DESCRIPTION ................................................................................................. 115
8.2 WHM PRINCIPLES OF OPERATION ................................................................................ 116
8.3 NEW AERCO WHM FEATURES ........................................................................................ 116
8.3.1Valvefeedback.............................................................................................................................116
8.3.2ValveSupervisor...........................................................................................................................116
8.3.3ValveControl................................................................................................................................116
8.3.4ModbusHeaderSensor................................................................................................................117
8.3.5AutomaticTemperatureSensorCalibration................................................................................117
8.3.6ManualModePasswordRequired...............................................................................................117
8.4 WHM STATUS DISPLAYS ................................................................................................. 118
8.5 BST ALTERNATING STATUS DISPLAYS ......................................................................... 119
8.6 WHM MENU ....................................................................................................................... 119
8.7 WHM MENU SETTING DESCRIPTIONS ........................................................................... 121
8.8 WHM HARDWARE INSTALLATION & SET-UP INSTRUCTIONS ..................................... 124
8.8.1HardwareInstallation...................................................................................................................125
8.8.2
WHMModbusNetworkWiring....................................................................................................125
8.8.3ControlandPowerWiring............................................................................................................127
8.9 WHM PROGRAMMING & START-UP ................................................................................ 128