Innovation Water Heaters Installation, Operation & Maintenance Manual
OMM-0078_0M
AERCO International, Inc.
•
100 Oritani Dr.
•
Blauvelt, NY 10913
Page
5
of
216
GF-128
Phone: 800-526-0288
09/11/2015
5.9 SSOV PROOF OF CLOSURE SWITCH .............................................................................74
5.10 PURGE SWITCH OPEN DURING PURGE .......................................................................75
5.11 IGNITION SWITCH OPEN DURING IGNITION.................................................................75
5.12 SAFETY PRESSURE RELIEF VALVE TEST ....................................................................76
CHAPTER 6.
MAINTENANCE ......................................................................................................... 77
6.1 MAINTENANCE SCHEDULE ..............................................................................................77
6.2 IGNITER-INJECTOR ..........................................................................................................78
6.3 FLAME DETECTOR ...........................................................................................................80
6.4 COMBUSTION CALIBRATION ...........................................................................................80
6.5 SAFETY DEVICE TESTING ...............................................................................................80
6.6 FIRESIDE INSPECTION .....................................................................................................80
6.7 WATERSIDE INSPECTION ................................................................................................85
6.7.1 Anode Replacement ....................................................................................................................... 86
6.8 HEAT EXCHANGER CLEANING ........................................................................................87
6.8.1 Pumping System Set-Up Instructions ............................................................................................. 88
6.8.2 Cleaning Procedure ........................................................................................................................ 89
6.8.3 Testing HydroSkrub Effectiveness .................................................................................................. 89
6.9 CONDENSATE DRAIN TRAP .............................................................................................91
6.10 AIR FILTER REPLACEMENT ...........................................................................................92
6.11 LOW WATER CUTOFF (LWCO) CAPACITOR INTEGRITY TEST ...................................93
6.11.1 Low Water Cutoff (LWCO) - Capacitor Electrical Short Test ........................................................ 93
6.11.2 Low Water Cutoff (LWCO) - Standard C-More Test ..................................................................... 95
6.12 SHUTTING THE WATER HEATER DOWN FOR AN EXTENDED PERIOD OF TIME ......95
6.13 PLACING THE HEATER BACK IN SERVICE AFTER A PROLONGED SHUTDOWN ......96
6.14 SPARK MONITOR (AC CURRENT TRANSDUCER) ........................................................96
CHAPTER 7.
TROUBLESHOOTING GUIDE ................................................................................ 97
7.1 INTRODUCTION.................................................................................................................97
7.2 ADDITIONAL FAULTS WITHOUT SPECIFIC FAULT MESSAGES .................................. 109
CHAPTER 8.
WATER HEATER MANAGEMENT .................................................................... 113
8.1 GENERAL DESCRIPTION ................................................................................................ 113
8.2 WHM PRINCIPLES OF OPERATION ............................................................................... 114
8.3 NEW AERCO WHM FEATURES ...................................................................................... 114
8.3.1 Valve Feedback ............................................................................................................................. 114
8.3.2 Valve Supervisor ........................................................................................................................... 114
8.3.3 Valve Control ................................................................................................................................ 114
8.3.4 Modbus Header Sensor ................................................................................................................ 115
8.3.5 Automatic Temperature Sensor Calibration ................................................................................ 115
8.3.6 Manual Mode Password Required ............................................................................................... 115
8.3.7 Quick Re-Flash Feature ................................................................................................................. 115
8.3.8 WHM Auto Mstr ........................................................................................................................... 116
8.3.9 Run Hours and Run Cycles ............................................................................................................ 116
8.3.10 High Temperature Governor ...................................................................................................... 116
8.4 WHM STATUS DISPLAYS ................................................................................................ 116
