Service manual

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© January 2013 Aqua-Hot
®
600-D01 Series Hydronic Heating System Service Manual - Rev. A
Section 6: Electronic Controller
General Facts ........................................................................................................... Page 44
Secondary 12 Volt DC battery Connection ............................................................... Page 45
Terminal Strips with Screw-Type Fasteners ............................................................. Page 45
Low Voltage Reset Feature ...................................................................................... Page 46
Replacement Procedure ........................................................................................... Page 47
Proper Jumper Pin Formation .................................................................................. Page 47
Section 7: Electronic Controller Indicator Lights
Electric Heating Element Status Indicator Light ..................................................... Page 48
Heating Zones Status Indicator Lights 1-5 ............................................................. Page 48
Low Battery Voltage Fault Indicator Light ............................................................... Page 48
Low Temp Cutoff Status Indicator Light ................................................................. Page 48
Low Tank-Level Cutoff Indicator Light .................................................................... Page 48
Heating Status Indicator Light ................................................................................ Page 48
Engine Preheat Pump Indicator Light ..................................................................... Page 49
[Circulation] Pump #1 Indicator Light ...................................................................... Page 49
[Circulation] Pump #2 Indicator Light ...................................................................... Page 49
[Circulation] Pump #3 Indicator Light ...................................................................... Page 49
Diesel-Burner Status Indicator Light ....................................................................... Page 49-50
Overload Fault Indicator Light ................................................................................ Page 50
Section 8: Diesel-Burner
Overview ................................................................................................................ Page 51
I.D. Plate ................................................................................................................ Page 51
Diesel-Burner Overview ......................................................................................... Page 52
Diesel-Burner Operational Flow Chart .................................................................... Page 53
Diesel-Burner Operational Overview ...................................................................... Page 54-56
Section 9: Detaching and Reattaching the Diesel-Burner
Detaching the Diesel-Burner .................................................................................. Page 57-59
Reattaching the Diesel-Burner ............................................................................... Page 60-62
Section 10: Diesel-Burner Components and Repair Information
Troubleshooting Flow Chart ……………………………………………………………..Page 63-68
Motor ...................................................................................................................... Page 69-72
Flame Sensor ......................................................................................................... Page 73-74
Ignition Electrodes .................................................................................................. Page 75-76
Fuel Nozzle ............................................................................................................ Page 76-77
Fuel Solenoid ......................................................................................................... Page 78