Rheem GHE80SS Installation guide

SERVICE &

TRAINING

MANUAL

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

AP23084 Rev 01

Rheem TRITONTM

Service Manual 2

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

SEQUENCE OF OPERATIONS..................................................................................................24

SAFETY FUNCTIONS OF THE CONTROLS .............................................................................28

ERROR CODES..........................................................................................................................30

TROUBLE SHOOTING ERROR CODES ...................................................................................33

GAS PRESSURE CHECKING PROCEDURES .........................................................................49

TRITON DISASSEMBLY AND REPAIR (VIDEO LINKS)..........................................................................53

DISASSEMBLY AND REPAIR ....................................................................................................54

BACNET CONFIGURATIONS ....................................................................................................60

LEAK GUARDTM..........................................................................................................................64

Rheem TRITONTM

Service Manual

WA RNING

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: T[email protected]

Before inspecting, diagnosing, repairing or operating any water heater, be sure to examine all of

the safety and warning labels on the tank. Follow the instruction on these warning labels. Read and

understand the Use and Care Manual that was shipped with the water heater. Failure to do so can

result in unsafe operation of the water heater resulting in property damage, bodily injury, or death.

Should you have any problems reading or following the instructions in the Use and Care Manual,

seek the help of a licensed and qualified professional.

Rheem TRITONTM

Service Manual 4

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. The control inputs are from a water temperature probe, pressure switches, flue gas

temperature sensor, high temperature limit switch and flame sensor. The control provides outputs

for a blower motor, spark igniter, gas valve, and has a nonvolatile storage of fault history. The sys-

tem incorporates a liquid crystal display (LCD) as the interface for the customer to control heater

function. The user interface consists of buttons for scroll through system menus, adjustment of set-

tings and to provide additional operational status information.

ELECTRICAL SHOCK - Troubleshooting and repairing this water heater can expose you to electri-

cal shock. Some of the diagnostic procedures require the presence of 120 volt AC electricity. Use

extreme caution when performing these procedures. When replacing an unserviceable component,

turn off all power to the water heater and check for the presence of power with a multi-meter or test

lamp. The ignition cable carries more than 10,000 volts of electrical energy. Use extreme caution

when diagnosing the Ultra High Efficiency Water Heater.

FLAMMABLE LIQUIDS AND VAPORS - Gas-

oline, as well as other flammable material and

liquids (adhesives, solvents, etc.), and vapors

they produce are extremely dangerous. DO NOT

handle, use or store gasoline or other flammable

or combustible materials anywhere near or in the

vicinity of a water heater. The spark ignition and

burner assembly in the water heater controls can

ignite these vapors. Failure to do so can result in

property damage, bodily injury or death.

WATER TEMPERATURE ADJUSTMENT -Safety and energy conservation are factors to be con-

sidered when selecting the water temperature setting on the thermostat. Water temperatures above

125°F can cause severe burns or death from scalding. The chart shown here may be used as a

guide in determining the proper water temperature for your application.

INTRODUCTION

SAFETY

FLAMMABLES

Flammable Vapors

FIRE AND EXPLOSION HAZARD

Can result in serious injury or death.

Do not store or use gasoline or other flammable vapors and liquids

in the vicinity of this or any other appliance. Storage or use of gasoline

or other flammable vapors or liquids in the vicinity of this or any other

appliance can result in serious injury or death.

WARNING

TIME / TEMPERATURE RELATIONSHIPS IN SCALDS

Temperature Time to Produce Serious Burn

120° F (49°C) More than 5 minutes

125° F (52°C) 1½to 2 minutes

130° F (54°C) About 30 seconds

135° F (57°C) About 10 seconds

140° F (60°C) Less than 5 seconds

145° F (63°C) Less than 3 seconds

150° F (66°C) About 1½seconds

155° F (68°C) About 1 second

Table courtesy of Shriners Burn Institute

Rheem TRITONTM

Service Manual

SPECIFICATIONS OF THE TRITON

Models

GHE (gas high efficiency gas) 80, 100 and 119 gallon (tank capacity)

Powered direct vent; sealed combustion; fully condensing; ASME rating options on all inputs;

power vent options on all inputs.

Fuel Type Natural and L.P. gas; thermal efficiency based on model

Gallon Capacity 80,100 and 119 gallons

Rated Gas Input (Btu/Hr.) 130,000; 160,000; 199,900; 250,000; 300,000; 350,000; 399,900; 499,900

Ignition System Spark ignition to main burner; no pilot of any kind

Heat Exchanger Down fired, multi-pass heat exchanger

Diagnostics

Nonvolatile storage of heater settings and fault history. Diagnostic codes provided through an

onboard LCD display consisting of information on power to the control, control status, fault codes

and system settings.

Installation Indoor only

Gas Connection 3/4” NPT Female and 1 1/4” NPT Female

Inlet Gas Pressure Natural Gas Min. 3.5” w.c. Max. 10.5” w.c.

L.P. Gas Min. 11.0” w.c. Max. 13.0” w.c.

High Altitude Units rated to 8,999ft. GHE119 up to 10k ft

Water Connection 2” NPT inlet/outlet – side connect – front and rear

1.5” for Top (Plugged from factory)

Vent Material Allowed

Polypropylene, PVC, ABS, CPVC plastic pipe options

130-160kbtu – 2”, 3” & 4” venting options

199-499kbtu – 3”, 4” & 6” venting options

SEE USE AND CARE MANUAL

Maximum Vent Lengths SEE USE AND CARE MANUAL

Noise Level 60 db @ 15 feet (max) using test ANSI S12.34/ISO 3744

Water Temperature

Factory Setting 120°F

Digital Thermostat (adjustable) 1 degree increments

85°F to 185°F

Temperature Differential Factory Setting of 12°F

User selectable from 1°F to 30°F

Electrical

Electrical Rating 120 VAC 50/60Hz, 7 Amps

Wire 3 (three) wire (hot, neutral, ground)

Earth Ground Sensitive

Yes

Polarity Sensitive Yes

Safety Devices

Temperature and Pressure Relief Valve – 150 PSI or 210°F

Venting Over Temperature Switch; trips at 160°F; automatic reset

Energy Cut Off for high water temperature; trips at 205°F (auto reset) +- 3°F

Flame Rectification - The presence of a flame is measured via a flame rod that points into the

flame. Control measures => 0.5 micro amp (uA)

Fuse protected main controller

Rheem TRITONTM

Service Manual 6

SPEED TABLE

Model Name Model ID Fuel Type

Combustion Blower Speed (RPM) Purge Timing

(Seconds)

Min. Speed Max. Speed Ignition Speed

Model Not

Selected 0 N/A N/A N/A N/A N/A

GHE80-130 1

Natural Gas 3400 5400 3400

Propane 3400 5400 3200

GHE80-160 2

Natural Gas 3400 6600 3400

Propane 3200 6600 3200

GHE80-200 3

Natural Gas 3000 4800 3000

Propane 3200 4900 3200

GHE80-250 4

Natural Gas 3000 6300 3000

Propane 3200 6300 3200

GHE80-300 5

Natural Gas 3000 7400 3000

Propane 3200 7500 3200

GHE100-130 6

Natural Gas 3400 5400 3400

Propane 3200 5400 3200

GHE100-160 7

Natural Gas 3400 6600 3400

Propane 3200 6600 3200

GHE100-200 8

Natural Gas 3400 4900 3400

Propane 3200 4900 3200

GHE100-250 9

Natural Gas 3400 6300 3400

Propane 3200 6300 3200

GHE100-300 10

Natural Gas 3400 7400 3400

Propane 3200 7600 3200

GHE100-350 11

Natural Gas 3400 7800 3400

Propane 3200 6900 3200

GHE100-400 12

Natural Gas 3400 8700 3400

Propane 3200 7900 3200

GHE119-500 13

Natural Gas 2800 8850 2800

Propane 2800 8850 2800

Rheem TRITONTM

Service Manual

COMPONENT PARTS GHE80SS, GHE80SU, GHE100SS, GHE100SU

Rheem TRITONTM

Service Manual 8

COMPONENT PARTS

GHE119SS, GHE119SU

Water Flow Sensor

(SS Only)

Auto Shut-off

(SS Only)

Diffuser

Nipple

Control Board

Display Kit

Relief

Valve

Water Temperature

and ECO Probe

Power Anode

Lower

Thermostat

Transformer Wire

Harness

Hand Hole

(under cover)

Drain Valve

Exhaust Tee

Assembly

On / Off Switch

POF & Intake

Pressure

switch

Blower / Gas Valve /

Burner Assembly Kit

Igniter Kit

Burner

Igniter Kit

Blower Gasket

Gas Valve

Blower

Venturi

Venturi Gasket

Burner

Gasket

Rheem TRITONTM

Service Manual

WIRING AND SCHEMATIC DIAGRAM GHE80SS, GHE80SU,

GHE100SS, GHE100SU

AX5631

Rheem TRITONTM

Service Manual 10

WIRING AND SCHEMATIC DIAGRAM

GHE119SS, GHE119SU

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