Rheem RTG2-42 - Default Chapter; Table of Contents

SVC 810 Tankless Troubleshooting Manual
1
Table of Contents
Specifications common to all product lines ................................................................................ 4
Product (Model) History .............................................................................................................. 5
Sequence of Operations ................................................................................................................ 7
Sensors and Safety ........................................................................................................................ 8
Oxygen Depletion Sensing System Operation............................................................................ 8
How to Reset the Four (4) Hour ODS Timer.............................................................................. 9
Overheat Film Wrap ................................................................................................................... 9
Heat Exchanger Thermistor ...................................................................................................... 10
Maintenance Panel Display........................................................................................................ 10
Clearing the Fault History ......................................................................................................... 11
Adjusting the Burner Control Assembly (Printed Circuit Board)......................................... 11
How to Check Manifold Gas Pressure...................................................................................... 12
Program Chip Adjustment.........................................................................................................13
Changing the Maximum Temperature Setting to 140° ........................................................... 14
Changing the Maximum Temperature Setting to 120° ........................................................... 14
Error Codes ................................................................................................................................. 15
Diagnostic Points on Printed Circuit Board............................................................................. 18
Thermistor Resistance Chart.....................................................................................................19
Fan Speed Chart ......................................................................................................................... 20
RTG2-42....................................................................................................................................... 21
Wiring Diagram ........................................................................................................................ 21
Printed Circuit Board ................................................................................................................ 22
RTG 53......................................................................................................................................... 23
Wiring Diagram – RTG 53 ....................................................................................................... 23
Printed Circuit Board – RTG 53 ............................................................................................... 24
RTG 66......................................................................................................................................... 25
Wiring Diagram ........................................................................................................................ 25
Printed Circuit Board ................................................................................................................ 26
Error Code 11 (RTG66 Only)................................................................................................... 26
Error Code 11 (RTG66 Only)................................................................................................... 27
Error Code 51 (RTG 66 Only).................................................................................................. 30
Error Code 61 (RTG 66 Only).................................................................................................. 31
Error Code 65 (RTG66 Only)................................................................................................... 32
Error Code 66 (RTG66 Only)................................................................................................... 33
RTG 74......................................................................................................................................... 34
Wiring Diagram – RTG 74 ....................................................................................................... 34
Printed Circuit Board – RTG 74 ............................................................................................... 35
MIC-180 & EZ Link ................................................................................................................... 36
MIC-180 Printed Circuit Board ................................................................................................ 36
Error Code 03 (MIC-180 & EZLink Only)............................................................................... 37
Test Run Mode.......................................................................................................................... 37
MIC 180 Maintenance Mode Table.......................................................................................... 38
Maintenance Information Mode ............................................................................................... 38
2nd Generation Flame Rod Chart............................................................................................. 39