Rheem TRITON GHE80SS Service Training Manual
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Rheem TRITON GHE80SS Service Training Manual

80, 100 & 119 gallon ultra-high efficiency water heaters
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80, 100 & 119 GALLON ULTRA-HIGH
EFFICIENCY WATER HEATERS
For use with the following models:
GHE80SS, GHE80SU, GHE100SS,
GHE100SU, GHE119SS, GHE119SU
CATEGORY IV Models
Fan Assisted Combustion
SERVICE &
TRAINING
MANUAL
AP23084 Rev 01

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Summary of Contents for Rheem TRITON GHE80SS

  • Page 1 80, 100 & 119 GALLON ULTRA-HIGH EFFICIENCY WATER HEATERS For use with the following models: GHE80SS, GHE80SU, GHE100SS, GHE100SU, GHE119SS, GHE119SU CATEGORY IV Models Fan Assisted Combustion SERVICE & TRAINING MANUAL AP23084 Rev 01...

  • Page 2: Table Of Contents

    Rheem TRITON Service Manual CONTENTS INTRODUCTION .........................4 SAFETY ............................4 SPECIFICATIONS OF THE TRITON ...................5 SPEED TABLE ..........................6 COMPONENT PARTS .........................7 WIRING AND SCHEMATIC DIAGRAM ..................9 TOP VIEW ...........................11 PARTS ............................13 NAVIGATING THE HOME SCREEN ..................16 USER INTERFACE ........................17 DISPLAY MESSAGES ON CONTROL BOARD .................20 SEQUENCE OF EVENTS ......................21...
  • Page 3 TECHNICAL SUPPORT LINE PHONE: 800-432-8373 FAX: 334-260-1341 ORDER CENTER 1-800-621-5622 RHEEM WATER HEATERS 800 Interstate Park Dr. Montgomery, AL 36109 Website: www.rheem.com Email: Techserv@Rheem.com Copyright 2022, Rheem Manufacturing Company, Water Heater Division...

  • Page 4: Introduction

    Rheem TRITON Service Manual INTRODUCTION The control system for the fully condensing 80, 100, and 119 gallon Gas High Efficiency (GHE) Commercial Gas Water Heater is intended for use indoors. The control combines all operational functions needed for a water heater with a powered burner system into a single printed circuit board package.

  • Page 5: Specifications Of The Triton

    Rheem TRITON Service Manual SPECIFICATIONS OF THE TRITON GHE (gas high efficiency gas) 80, 100 and 119 gallon (tank capacity) Models Powered direct vent; sealed combustion; fully condensing; ASME rating options on all inputs; power vent options on all inputs.

  • Page 6: Speed Table

    Rheem TRITON Service Manual SPEED TABLE Combustion Blower Speed (RPM) Purge Timing Model Name Model ID Fuel Type (Seconds) Min. Speed Max. Speed Ignition Speed Model Not Selected Natural Gas 3400 5400 3400 GHE80-130 Propane 3400 5400 3200 Natural Gas...

  • Page 7: Component Parts

    Rheem TRITON Service Manual COMPONENT PARTS GHE80SS, GHE80SU, GHE100SS, GHE100SU...
  • Page 8 Rheem TRITON Service Manual COMPONENT PARTS GHE119SS, GHE119SU Blower / Gas Valve / Burner Assembly Kit Venturi Gasket Display Kit Venturi Blower On / Off Switch Transformer Wire Gas Valve Harness POF & Intake Pressure Blower Gasket switch Power Anode...

  • Page 9: Wiring And Schematic Diagram

    Rheem TRITON Service Manual WIRING AND SCHEMATIC DIAGRAM GHE80SS, GHE80SU, GHE100SS, GHE100SU AX5631...
  • Page 10 Rheem TRITON Service Manual WIRING AND SCHEMATIC DIAGRAM GHE119SS, GHE119SU...

  • Page 11: Top View

    Rheem TRITON Service Manual TOP VIEW GHE80SS, GHE80SU, GHE100SS, GHE100SU Transformer (Inside View) Transformer Low Gas Pressure Switch Intake Pressure Switch Flame Rod Wire POF Switch Ignition Control Gas Valve Blower Ignitor Powered Anode Control Ignitor Wire BOTTOM OF WATER HEATER...
  • Page 12 Rheem TRITON Service Manual TOP VIEW GHE119SS, GHE119SU GHE119SS, GHE119SU Gas Valve Intake Pressure Switch POF Switch Ignitor Ignitor Wire Blower Transformer Powered Flame Rod Wire Anode Control Ignition Control...

  • Page 13: Parts

    Rheem TRITON Service Manual PARTS Part Name Description Picture This is a variable speed blower by Fasco, is matched to gas valve. The speed and Blower function of the blower is monitored by the main controller. The gas valve, by Honeywell, is matched Gas Control Valve to the blower motor.
  • Page 14 Rheem TRITON Service Manual PARTS Part Name Description Picture The control provides outputs for a blow- er motor, high voltage spark igniter, gas valve, and nonvolatile storage of fault his- tory. The control receives inputs from tem- perature probe, pressure switches, Flue...
  • Page 15 Rheem TRITON Service Manual PARTS Part Name Description Picture This sensor detects water when 2.5-5mL of water is present. It is installed in the bottom pan of the unit and has a splash proof guard above it so tank condensation or sprayed water will not activate it.

  • Page 16: Navigating The Home Screen

    Rheem TRITON Service Manual NAVIGATING THE HOME SCREEN Health Indicator Icons Operating Status Status: Standby WiFi Indicator and Settings 120° Rapid Temperature Adjustment Temperature Setting warm very hot Temperature Adjustment Settings Status Disable Service Setting Menu Button Status Button Enable/Disable...

  • Page 17: User Interface

    Rheem TRITON Service Manual USER INTERFACE BASIC SETTINGS - The basic settings in your water heater • Close if Leak Detected: Always close the valve when leak can allow you to change the temperature unit, screen adjust- is detected. ment lock/unlock, enabling/disabling the alarm beep, and your •...
  • Page 18 Rheem TRITON Service Manual USER INTERFACE STATUS MENU - The Status screen provides information on MORE FUNCTION - Selecting the more function your heater the current operating status, diagnostics and sensors. This will bring you to a prompt showing you the current temperatures screen also provides information on the WiFi status.
  • Page 19 Rheem TRITON Service Manual USER INTERFACE ALARMS - The current alarms function allows you to see any health and tank health status. The combustion health and tank problems that have been detected by your water heater. Also, health each have three levels of health: by selecting on the current alarm you can press “more info”...

  • Page 20: Display Messages On Control Board

    Rheem TRITON Service Manual DISPLAY MESSAGES ON CONTROL BOARD Status Message Description Water Heater Disabled The water heater is disabled and not in any active mode. The water heater is in a non-active mode where the temperature of the water in the tank is with- Standby in the set point limits.

  • Page 21: Sequence Of Events

    Rheem TRITON Service Manual SEQUENCE OF EVENTS Call for heat occurs when tank temperature is below the set point by the differential The Triton ignition control periodically run self check routines for hardware faults. Any detected fault will lock out the unit and prevent combustion. It will check every hour and if the condition clears it will return to normal operation.
  • Page 22 Rheem TRITON Service Manual SEQUENCE OF EVENTS Set A001 - Ignition Set A029 - Failed Is this the third Is this the third lockout. Run post Is flame Current ignition - Retrying. failed ignition in recycle without >0.5µA present purge and transition to...
  • Page 23 Rheem TRITON Service Manual SEQUENCE OF EVENTS Modulation will start when: Is TANKTEMP TANKTEMP > (WHTRSETP - (WHTRDIFF/2)). Continue heating at Is heat demand above the maximum input rate During modulation the blower RPM is satisfied modulation decreased linearly until it is running at...

  • Page 24: Sequence Of Operations

    Power ON When the control is powered, it should display the Rheem heat- er model, water temperature, operating setting temperature and heater status. (If temp is above 120°, a scald warning will...
  • Page 25 Rheem TRITON Service Manual SEQUENCE OF OPERATIONS Pre-purge Cycle If PS closes, then control board Pre-purge lasting 5 seconds will If controllers gas valve relay 1 is initiates the pre-ignition cycle. check to make sure the venting not OPEN you will get an error...
  • Page 26 Rheem TRITON Service Manual SEQUENCE OF OPERATIONS End of Heating Cycle Once the set point is reached, Post purge expels latent heat If there is a presence of flame the gas valve is closed and the and combustion gases. 10 seconds after the gas valve...
  • Page 27 Rheem TRITON Service Manual SEQUENCE OF OPERATIONS SCREENSHOTS Status: Pre-Purge Status: Post-Purge 180° 110° Caution: Risk of Scalding warm very hot warm very hot Settings Status Disable Settings Status Disable Service Service Status: Ignition Status: Standby 180° 110° warm very hot...

  • Page 28: Safety Functions Of The Controls

    Rheem TRITON Service Manual SAFETY FUNCTIONS OF THE CONTROLS (normally closed) will open. The controller will disable all heating functions and will render the heater into an error condition. PRESSURE SWITCHES Pressure switches are incorporated to provide proof of fan (blower) op-...
  • Page 29 Rheem TRITON Service Manual SAFETY FUNCTIONS OF THE CONTROLS CONTROLLER RETRY AND IGNITION ATTEMPTS CONDENSATE REMOVAL TUBE WITH EXHAUST TEE ASSEMBLY If the first ignition cycle fails during a normal heating cycle An important part of the Triton is the condensate removal sequence, the control will finish the sequence of the ignition tube that comes included in the exhaust T.

  • Page 30: Error Codes

    Rheem TRITON Service Manual ERROR CODES Provided in the tables below are descriptions of ALL the ALARM errors are indicated by an “A” followed by numeric error messages provided by the ignition control control. digits and a description of the error. Alarm errors cleared Errors can be divided into two groups, ALARM and ALERT.
  • Page 31 Rheem TRITON Service Manual ERROR CODES Error Code Display A036 A036 Gas Relay 1 stuck closed. A037 A037 Gas Relay 2 stuck open. A038 A038 Gas Relay 2 stuck closed. A039 A039 Flame sense cct fault. A040 A040 Controller RAM fault.
  • Page 32 Rheem TRITON Service Manual ERROR CODES Error Code Display T114 T114 Flame Rod Degraded and Needs Servicing T115 T115 Combustion Health Degraded: Needs Service T116 T116 Combustion Health Degraded. Needs Service T117 T117 Time to Drain and Inspect Tank T118...

  • Page 33: Troubleshooting Error Codes

    Rheem TRITON Service Manual TROUBLESHOOTING ERROR CODES Error A001 Ignition Lockout This unit has failed ignition 27 consecutive cycles. The unit will exhaust reversed, center pipe missing or loose, non-approved fail nine times and give an A029. It will fail 9 more times and give vent kit being used, equal ft not removed.
  • Page 34 Rheem TRITON Service Manual TROUBLESHOOTING ERROR CODES (TRITON SD) SEE NOTE 5 GROUND VALVE 1 110 VAC RET GROMMET VALVE 2 C1 REFERENCE VIEW With connector removed, cycle the power on, while display is showing “IGNITION” check the voltage across pins Valve 1 and Ground and repeat and check across Valve 2 and Ground.
  • Page 35 Rheem TRITON Service Manual TROUBLESHOOTING ERROR CODES Error A001 Ignition Lockout (continued) Gas Valve Harness and Control Board Checks • Trace the wire harness from the gas valve backwards to P4 connector on the ignition control board and Disconnect the Molex connector from the P4 connection.
  • Page 36 Rheem TRITON Service Manual TROUBLESHOOTING ERROR CODES • If continuity is present, cycle power back on and clear • If error persists with intake removed from blower, verify no alarm code. If switch opens (loses continuity) with blower debris in blower housing. If no debris found and switch...
  • Page 37 Rheem TRITON Service Manual TROUBLESHOOTING ERROR CODES Error A007 Exhaust Pressure Switch Open The exhaust pressure switch is a normally closed switch. It will only open in the event of excess pressure in the exhaust venting. Check the following: • Check wiring to the switch to ensure no wires have been •...
  • Page 38 Rheem TRITON Service Manual TROUBLESHOOTING ERROR CODES Error A017 Flue High Flue Temp This error code means the combustion gases at exhaust tee at the bottom of the tank are too hot. The sensor trips at 160°F and the alarm cannot be cleared until the sensor temperature is below 155°F .
  • Page 39 Rheem TRITON Service Manual TROUBLESHOOTING ERROR CODES Error A022 Upper Tank Sensor is Open This error code means the water temperature probe is not connected or the water temperature thermistor is damaged. Things to check: • Make sure the Molex connector to the...
  • Page 40 Rheem TRITON Service Manual TROUBLESHOOTING ERROR CODES Error A024 Upper Tank Sensor Shorted The control board is detecting a short in the ECO/temperature probe or wiring. • Refer to troubleshooting steps for A022. Error A025 No Blower RPM Feedback Control does not detect blower RPM. This is typically cause by a bad blower or wiring harness being disconnected.
  • Page 41 Rheem TRITON Service Manual TROUBLESHOOTING ERROR CODES Error A028 Flame Present W/O Heating This alarm means the control board detected a flame signal 10 seconds after the gas valve had closed from the last heating cycle. • Check for flame through the sight glass. If flame is present •...
  • Page 42 Rheem TRITON Service Manual TROUBLESHOOTING ERROR CODES Error A033 through A043 Relay/Communication Errors All of these codes are related to ignition control failure. • Cycle power and attempt to clear alarm. If alarm does not clear, replace ignition control board.
  • Page 43 Rheem TRITON Service Manual TROUBLESHOOTING ERROR CODES Error A109 External CO Sensor Alarm CO sensor detects carbon monoxide above the threshold limit. The unit does not come with a CO sensor. If the unit does not have one wired directly to it then the configuration setup could be causing a false alarm.
  • Page 44 Rheem TRITON Service Manual TROUBLESHOOTING ERROR CODES Error T020 Lower Tank Sensor Open Control senses the lower tank temperature sensor open. This will not disable the unit or keep it from heating water. The alert will clear on its own when the issue is resolved.
  • Page 45 Rheem TRITON Service Manual TROUBLESHOOTING ERROR CODES Error T113 & T114 Flame Rod Degraded These alerts indicate the peak flame current reading has substantially decreased from the initial startup of the unit. This is indicative of a dirty flame rod and/or ignition/flame failures. These alerts will not keep the unit from heating nor can they be manually cleared.
  • Page 46 Rheem TRITON Service Manual TROUBLESHOOTING ERROR CODES T123 thru T 137 Anode Alerts Anode locations indicated below. Refer to next 2 pages for troubleshooting instructions GHE80SS, GHE80SU, GHE100SS, GHE100SU Upper Anode Middle Anode Lower Anode GHE119SS, GHE119SU Upper Anode 4th Anode...
  • Page 47 Rheem TRITON Service Manual TROUBLESHOOTING ERROR CODES • If you are getting any error code regarding anode(s), the first step is to disconnect anode rod power wire from the Spade Terminal Power Wire UPPER, MIDDLE, or LOWER (dependent on the alert(s) Connector given) anode(s) as shown in the photo to the right.
  • Page 48 Rheem TRITON Service Manual TROUBLESHOOTING ERROR CODES NOTE- Turn off power to water heater. • Disconnect the anode power lead harness from the anode control module. • With anode power wire disconnected, insert one meter lead into the wire as shown.

  • Page 49: Gas Pressure Checking Procedures

    Rheem TRITON Service Manual GAS PRESSURE CHECKING PROCEDURES Gas Pressure Checking Procedure Triton HD The Triton water heaters use a negative pressure gas valve so we do not check the manifold gas pressure. Our only checks are to confirm the inlet gas pressure is within minimum and maximum limits and verify the inlet pressure does not have more than a 1.5”w.c.
  • Page 50 Rheem TRITON Service Manual GAS PRESSURE CHECKING PROCEDURES • Turn the heater on, and waiting for the “Ignition” on the display. Any pressure drop at all confirms the gas valve has opened and is operating. • During “Ignition” and/or “Heating” status, if the pressure drops more than 1.5”w.c.
  • Page 51 Rheem TRITON Service Manual GAS PRESSURE CHECKING PROCEDURES Gas Valve Adjustment Procedure Triton (SD) Inside the Service Menu, there is a button to make gas valve If the Ignition Control cannot respond, the test will be ended, and adjustments. the screen will back out to the Service Screen for the test to be restarted from the beginning.
  • Page 52 Rheem TRITON Service Manual GAS PRESSURE CHECKING PROCEDURES NOTE: To correctly adjust the offset screw, turn the Once the Post-Purge is completed, the “Test Completed” mes- hex head tool ½ turn in the desired direction and then sage will appear on the screen.

  • Page 53: Triton Disassembly And Repair (Video Links)

    Rheem’s YouTube channel at www.youtube.com/RheemMFG. can be accessed through the hyperlinks below. Below is a list of currently available servicing video links with step by step walkthroughs of replacing each part.

  • Page 54: Disassembly And Repair

    Rheem TRITON Service Manual DISASSEMBLY AND REPAIR Ignition Control Board Blower Motor 1. Disconnect power to the water Disconnect power to the heater. water heater. 2. Remove all Molex connections Disconnect the 2 Molex to the control board. Wires are connections.
  • Page 55 Rheem TRITON Service Manual DISASSEMBLY AND REPAIR Igniter Pressure Switches Disconnect power to the water heater. Remove all wiring connections and rubber tubing to the pres- sure switch. Remove the Phillips screw hold- ing the pressure switch assem- bly in place.
  • Page 56 Rheem TRITON Service Manual DISASSEMBLY AND REPAIR Replacing a Burner (Triton HD) The only tools necessary for this will be a ratchet with a ½ in. 9. To replace the burner aligning the notch, take the new socket and a #2 Phillips head screwdriver. Please consult the Use burner and gasket and attach using the screws provided.
  • Page 57 Rheem TRITON Service Manual DISASSEMBLY AND REPAIR 14. Reconnect the lead from the flame rod sensor to the con- trol box. 15. Reconnect the two leads to the low gas pressure. (It does not matter which lead is connected to which tab.) 16.
  • Page 58 Rheem TRITON Service Manual DISASSEMBLY AND REPAIR Replacing a Burner (Triton SD) 6. Once the bolts are removed, remove the entire blower assembly. The only tools necessary for this will be a ratchet with a ½” sock- et (a 1/2” ratcheting wrench is best), a 5mm Allen head, and a #2 Philips head screwdriver.
  • Page 59 Rheem TRITON Service Manual DISASSEMBLY AND REPAIR 12. Make sure to attach the blower to the burner in the same 16. Reconnect the lead from the flame rod sensor to the con- orientation as it has been attached previously. (if assembled...

  • Page 60: Bacnet Configurations

    It is important to understand that Rheem in no way supports BACnet itself. We are only able to provide direction within our product to the location for data input. For example, if a a BACnet...
  • Page 61 BACnet MAC Address BACnet Baud Rate 19.2 kbps BACnet Config MS/TP Master Rheem TRITON BACnet Max Master Addr. Service Manual BACnet Device Instance 4194303 BACNET CONFIGURATIONS “Where Do I Go to Input my Device Instance? Status: Standby INPUT DIGIT BY DIGIT BY TOUCHING EACH DIGIT AND 180°...
  • Page 62 • This will open ‘BACnet Settings’ and will list the BACnet The Baud Rate should only in very rare circumstances be adjust- MAC address, Baud rate, BACnet Config, Max Master ed. Rheem support does NOT under any circumstances provide Address, and Device Instance. advice for this setting.
  • Page 63 Rheem TRITON Service Manual BACNET CONFIGURATIONS BACNET SETTINGS DETAILS: BACnet Setting Default Value Additional Information Range: 0 to 127 for MS/TP Master and 0 to 254 for MS/TP Slave When possible, 0 should be avoided. BACnet MAC Address Must be unique among all devices on a given BACnet network segment.

  • Page 64: Leak Guard

    Rheem TRITON Service Manual LEAK GUARD What is LeakGuardTM LeakGuard is a proprietary auto shut-off system that prevents A112 – The control board is not seeing the valve as being catastrophic damage and allows no more than 24 ounces of “OPEN”.
  • Page 65 Rheem TRITON Service Manual NOTES...
  • Page 66 Rheem TRITON Service Manual NOTES...
  • Page 67 Rheem TRITON Service Manual NOTES...
  • Page 68 TECHNICAL SUPPORT LINE PHONE: 800-432-8373 FAX: 334-260-1341 ORDER CENTER 1-800-621-5622 RHEEM WATER HEATERS 800 Interstate Park Dr. Montgomery, AL 36109 Website: www.rheem.com Email: Techserv@Rheem.com Copyright 2022, Rheem Manufacturing Company, Water Heater Division...

This manual is also suitable for:

Triton ghe80suTriton ghe100ssTriton ghe100suTriton ghe119ssTriton ghe119suTriton ghe80-130 ... Show all

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