Rheem GHE100-350 User Manual

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TRITON

80 & 100 Gallon Ultra-High

Efficiency Water Heaters

Service and Training Manual

For use with the following models:

GHE80SS, GHE80SU,

GHE100SS, GHE100SU

CATEGORY IV Models

Fan Assisted Combustion

SVC1020T; Revision 4; January 2020

Table of Contents

Table of Contents2
Introduction4
Safety4
Specifications5
Speed Table6
Component Parts7
Wiring Diagram8
Connection Diagram9
Top View10
Parts11
User Interface14
- Start -U P14
- Temperature Adjustment14
- Setting Menu14
- Status Menu16
- Service Menu16
Display Messages on Controller18
Sequence of Events19
Sequence of Operations22
Safety Functions of the Controls25
- Flame Detection25
- ECO (Energy Cut Off)25
- Pressure Switches25
- Vent Temperature (Flue Gas) Sensor25
- Power Outages26
- Controller Retry and Ignition Attempts26
- Condensate Removal Tube26
Error Codes27
Troubleshooting Error Codes31
- Error A001 Ignition Lockout31
- Error A002 Flame Is Not Stable33
- Error A003 Intake Switch Open33
- Error A004 Pof Open During Heating34
- Error A005 Pof Open During Pre-Purge34
- Error A006 Pof Open During Post Purge34
- Error A007 Exhaust Pressure Switch Open35
- Error A008 Pof/Blower Mismatch35
- Error A010 End of Line Test Failure35
- Error A016 Eco Switch Is Open35
- Error A017 Flue High Flue Temp36
- Error A018 Flue Temp Sensor Open37
- Error A019 Flue Temp Sensor Shorted37
- Error A022 Upper Tank Sensor Is Open37
- Error A023 Upper Tank Temp too Hot38
- Error A024 Upper Tank Sensor Shorted38
- Error A025 N Oblower Rpm Feedback38
- Error A026 Blower Expected Rpm/Actual Rpm Mismatch38
- Error A027 Flame Present before Ignition38
- Error A028 Flame Present Without Heating39
- Error A029 Failed Ignition39
- Error A030 Flame Loss During Heating39
- Error A031 Loss of Anode Communication39
- Error A033-A043 Communication Errors39
- Error A044 Processor Clock/Line Frequency Disagree39
- Error A101 Configuration Data Restore40
- Error A102 Time Clock Needs to be Programmed40
- Error A103 Time Clock Not Advancing Time Properly40
- Error A104 Water Leak Detected40
- Error A108 Ignition Board Communication Failure40
- Error A109 External Co Sensor Alarm40
- Error A110/A111 Shut -Off Valve Monthly Test Close Open Error40
- Error A112 Shutoff Valve Not Open41
- Error A121 no Water Detected in Tank41
- Error T009 N Ogas Detected41
- Error T020-T021 Lower Tank Sensor Open /Shorted41
- Error T029 Failed Ignition -Retrying42
- Error T032 Lower Tank Temp A/D Error42
- Error T105 Water Leak Sensor Not Installed42
- Error T113-T114 Flame Rod Degraded42
- Error T115-T116 Combustion Health Degraded42
- Error T117-T120 Periodic Maintenance42
- Error T122 N Ocomm with Powered Anode Controller for >60 Seconds43
- Error T123-T137 Anode Alerts43
Gas Pressure Checking Procedure48
Gas Valve Adjustment Procedure49
Disassembly and Repair50
Bacnet Configuration55
Leakguard60

Other manuals for Rheem GHE100-350

Use & Care Manual32 pages

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Rheem GHE100-350 Specifications

General

Brand	Rheem
Model	GHE100-350
Category	Water Heater
Language	English

Summary

User Interface Diagnostics

Alarm Monitoring and History

Viewing current and past alarm codes for troubleshooting.

System Health and Service Alerts

Checking system health and configuring maintenance reminders.

Safety Functions of Controls

Flame Detection Mechanism

How flame is detected and monitored for stability via rectification.

ECO (Energy Cut Off) Function

High limit switch for over-temperature protection at 205°F.

Pressure Switches Functionality

Role of pressure switches for fan proof and vent blockage detection.

Vent Temperature (Flue Gas) Sensor

Detects excessive heat at the vent to protect piping.

Safety Functions of Controls

Controller Ignition Retry Logic

Describes the retry sequence for ignition failures before lockout.

Error Code Reference (A001-A026)

Error Code Reference (A027-A110)

Error Code Reference (A111-T129)

Error Code Reference (T130-T137)

Troubleshooting: Ignition Lockout (A001)

Troubleshooting: Ignition Lockout Continued

Troubleshooting: Flame Stability and Intake Switch

Troubleshooting: Proof of Fan Switch Errors

Troubleshooting: Pressure, Mismatch, and Cut-Off Errors

Troubleshooting: Flue Temperature Errors

Troubleshooting: Flue and Tank Sensor Errors

Troubleshooting: Tank Temp, Blower, and Flame Errors

Troubleshooting: Flame, Communication, and Frequency Errors

Troubleshooting: Configuration, Leak, and Valve Test Errors

Troubleshooting: Shutoff Valve, Water, Gas, and Tank Sensor Errors

Troubleshooting: Ignition Retry, A/D Error, and Health Errors

Troubleshooting: Anode Controller and Alerts

Troubleshooting: Anode Alerts and Rod Checks

Troubleshooting: Anode Wiring and Module Checks

Component Replacement: Burner Assembly

Burner Assembly Removal

Detailed instructions for removing the burner assembly and blower.

Leak Guard™ System

LeakGuard™ Functionality and Error Codes

How LeakGuard detects leaks and its response to errors.

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