Rheem GHE80SS Use & Care Manual
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Rheem GHE80SS Use & Care Manual

Commercial high efficiency water heater category iv models fan assisted combustion
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Commercial High Efficiency Water Heater
USE & CARE MANUAL
WITH INSTALLATION INSTRUCTIONS FOR THE CONTRACTOR
For use with the following models:
GHE80SS, GHE80SU
GHE100SS, GHE100SU
CATEGORY IV Models
Fan Assisted Combustion
!
Recognize this symbol as an indication of important
safety information!
NOTICE: This water heater is designed for use in a commercial application and the installation and maintenance of it should be performed
!
by a qualified, licensed service professional. If the foregoing assumption is not appropriate, then we recommend that you obtain and retain
our Residential Use & Care Manual.
WARNING: If the information in these instructions are not followed exactly, a fire or explosion may result causing
!
property damage, personal injury or death.
FOR YOUR SAFETY!
!
-AVOID FIRES AND EXPLOSIONS
• Do not store or use gasoline, other flammable vapors or
liquids or other combustible materials in the vicinity of
this or any other appliance.
• Doing so may result in a explosion or fire
- WHAT TO DO IF YOU SMELL GAS
• Do not try to light any appliance.
• Do not touch any electrical switch.
• Do not use any phone in your building
• Immediately call your gas supplier from a neighbor's
phone. And follow the gas supplier's instructions.
!
Do not destroy this manual. Please read carefully and keep
in a safe place for future reference.
• If you cannot reach your gas supplier, call the fire de-
partment.
• Do not return to your building until authorized by the
gas supplier or fire department.
-ALWAYS REFER TO THIS MANUAL
• Improper installation, adjustment, alteration, service,
or maintenance can cause injury, property damage, or
death.
• Installation and service must be performed by a quali-
fied installer, service agency, or gas supplier.
AP19520 (01/18)

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  • Page 1 Commercial High Efficiency Water Heater USE & CARE MANUAL WITH INSTALLATION INSTRUCTIONS FOR THE CONTRACTOR For use with the following models: GHE80SS, GHE80SU GHE100SS, GHE100SU CATEGORY IV Models Fan Assisted Combustion Recognize this symbol as an indication of important Do not destroy this manual. Please read carefully and keep safety information! in a safe place for future reference.

  • Page 2: Table Of Contents

    READ ALL SAFETY INFORMATION TABLE OF CONTENTS Safety Information Your safety and the safety of others are very important. Safety Precautions ....3-4 There are many important safety messages in this manual and on your appliance.

  • Page 3: Safety Precautions

    General Safety Precautions To meet commercial water use needs, the temperature on this water The following chart details the relationship of water temperature and heater is adjustable up to 185°F (85° C). However, water temperatures time to scald injury and may be used as a guide in determining the over 125°F (52°...

  • Page 4: Safety Precautions

    General Safety Precautions Be sure to read and understand the entire Use & Care Manual before attempting to install or operate this water heater. Especially the following General Safety Precautions. Failure to follow these warnings could result in a fire or explo- sion, causing property damage, bodily injury, or death.

  • Page 5: Introduction

    Rheem's UL listed NSF seal the water heater and system piping. This rapid pres- Kit (see kit listing on page 34). A factory designed...
  • Page 6 Installation setting of the relief valve, causing it to operate 3. RELIEF VALVE — A new factory installed combina- during each heating cycle. Thermal expansion, and tion pressure and temperature relief valve, comply- the resulting rapid, repeated expansion and contrac- ing with the Standard for Relief Valves and Auto- tion of components in the water heater and piping matic Gas Shutoff Devices for Hot Water Supply...
  • Page 7 1/2 psi (14” haust elbow, and refill it with the new neutralizer WC / 3.5 kPa). (Rheem part number AP16770). Re-attach the exhaust tee to the heater. Pour approximately 1 cup of water into the exhaust tee. Re-attached the venting.
  • Page 8 Installation 7. VENTING — WARNING NOTE: This unit can be vented either as a direct vent Failure to properly vent the water heater to the outdoors as out- or power vent configuration. lined above and in the following section can result in unsafe opera- NOTICE: This unit can be vented using only the below tion of the water heater causing bodily injury, explosion, fire or recommended pipe material.

  • Page 9: Joining Pipe And Fittings

    Installation alent length of pipe that can be used. DO NOT exceed CPVC (Schedule 40 DWV, ASTM F-438) ABS (Schedule 40 DWV, ASTM D-2661)(Not permitted the equivalent length of pipe in the charts. in Canada) Depending on the size of pipe selected for venting NOTICE: Use of PVC cellular core (ASTM-F891), ABS the water heater, it may be necessary to use a fitting Schedule 40, DWV cellular core (ASTM –F628), or...
  • Page 10 Installation • Be sure the condensate runs freely to a drain and For applications below 32°F (0°C), use only low does not accumulate inside the water heater. In cold temperature type solvent cement. • climates, precautions may need to be taken to insure Appropriate solvent and cleaner must be used that the condensate drain does not freeze.
  • Page 11 Installation MINIMUM AND MAXIMUM VENT LENGTHS Feet Meters Important information for all installations: 1) The minimum required venting is what is required to safely extend the inlet and outlet vent pipes outside of the building. 15.2 2) Each 90° elbow (standard or long sweep elbow) reduces the 18.3 equivalent vent length by 5 feet (1.5m).
  • Page 12 Installation Max Vent Length (Eq.Ft.) Power Direct Vent Rigid Pipe Diameter 2" (5 cm) 3" (8 cm) 4" (10 cm) 6" (15 cm) Altitude Inlet Models Range Inlet Outlet Inlet Outlet Inlet Outlet Inlet Outlet 0-2000 GHE80SU-130(A) (0 - 609 m) (6.1 m) (10.7 m) (18.3 m)
  • Page 13 Installation vent terminal is at least 2 feet (0.61 m) away from any- thing that can be damaged by the condensate HORIZONTAL VENT INSTALLATION – Once the vent terminal location has been determined, make a hole through the Min. 24" exterior wall to accommodate the vent pipe.
  • Page 14 Installation Figure 8 AREA WHERE TERMINAL IS NOT PERMITTED X AIR SUPPLY INLET V VENT TERMINAL Horizontal Vent Terminal Location for Power Direct Vent The following information should be used for determining the proper location of the vent terminal for direct vent water heaters. Canadian Installations US Installations 12 inches (30 cm)
  • Page 15 Installation • DO NOT terminate near soffit vents or crawl space or other area where condensate or vapor could create a nuisance hazard or cause property damage. • DO NOT locate the exhaust vent terminal where condensate or vapor could cause damage or could be detrimental to the operation of regulators, relief valves, or other equipment.
  • Page 16 Installation Figure 9 AREA WHERE TERMINAL IS NOT PERMITTED X AIR SUPPLY INLET V VENT TERMINAL Horizontal Vent Terminal Location for Power Vent The following information should be used for determining the proper location of the vent terminal for direct vent water heaters. Canadian Installations US Installations A= Clearance above grade, veranda,...

  • Page 17: Water Heater Location

    Installation Figure - 10- Typical Horizontal Power Vent System EVERY 3' MAX 2, 3, 4, OR 6* INCH PIPE AND When 6 inch pipe is used, start pipe SUPPORT BRACKET FITTINGS supports as close as possible to unit. 45° TERMINAL 1 IN.
  • Page 18 Installation Figure - 11- Typical Horizontal Direct Vent System EVERY 3' MAX SUPPORT BRACKET When 6 inch pipe is used, 2, 3, 4, OR 6* INCH PIPE start pipe supports as close AND FITTINGS as possible to unit. 45° TERMINAL 1 IN.
  • Page 19 Installation Horizontal Venting Figure 12a: Multiple Unit Venting Figure 12c: Optional Configuration Example of 2 Units' Vents. 24" to 36" 24" to 36" 24" to 36" 24" to 36" 24" Min. 10" Min. Heater #1 Heater #2 Heater #1 Heater #2 Intake Exhaust Intake...
  • Page 20 Installation Figure 13. Typical Vertical Direct Vent System Installation Straight Exhaust Terminal 24" (61 CM) Min (Support required). 90° Intake Terminal "D" Support Bracket Water Heater "D" Min. 18 in. (46 cm) above Roof Min. 12 in. (30.5 cm) above anticipated snow level Max.
  • Page 21 Installation Figure 14. Typical Vertical Power Vent System Installation Min. of 18" (46 cm) above roof. Straight Exhaust Terminal Min. of 12" (30.5 cm) above anticipated snow level. Max. 24" (61 cm) above roof without additional Support Bracket support. Recommended support bracket be placed on horizontal run 90°...
  • Page 22 Installation Figure 15. Direct Vent Vertical Vent Horizontal Intake Direct Vent Horizontal Vent Vertical Intake...
  • Page 23 Installation CONCENTRIC VENT TERMINAL INSTALLATION: CAUTION PROCEDURE Improper installation, adjustment, service, or mainte- DO NOT operate this water heater with the rain cap nance can cause property damage, personal injury, or removed or recirculation of combustion products may death. Consult a qualified installer, service agency, or occur.
  • Page 24 Installation STEP 3: WARNING Secure the combustion air-inlet pipe using a field supplied perforated strap or a suitable type These instructions are intended as an aid to qualified material (see Figure 16). service personnel for proper installation, adjustment, and operation of this kit. Read these instructions STEP 4: thoroughly before attempting installation, adjustment, Assemble the vent pipe assembly by cleaning and...
  • Page 25 Installation STEP 3: Figure 19 Multiple Sidewall or Vertical Concentric Vents Secure the combustion air-inlet pipe using a field supplied perforated strap or a suitable type material. 36" (91 cm) Min. 36" (91 cm) Min. (see Figure 18). STEP 4: Assemble the vent pipe assembly by cleaning and cementing the rain cap to the smaller diameter exhaust pipe.
  • Page 26 Installation The GHE80SS/SU and GHE100SS/SU models have been certified to use polypropylene pipe for both the intake and exhaust vent systems, but must use the current PVC vent terminations (including concentric vents). All polypropylene pipe and fittings listed in the tables below are ULC-S636 listed.
  • Page 27 Installation PVC pipe shipped PP pipe PVC to PP with the unit adapter Straight piece of PP pipe connected to a PP to PVC adapter vent terminal installed onto a PP to PVC adapter. Note: The hole through the wall should be sized for the PP pipe, which has a smaller OD than PVC pipe.
  • Page 28 Installation The PVC to PP adapter should then be installed into the PVC couplings on the inlet air and exhaust vent installed on the unit. The sealing gasket will require some type of lubricant to make it easier to install the adapter. Both Centrotherm and M&G Duravent recommend a connector ring to be installed between the PVC part and the PP part.
  • Page 29 Installation To be able to use a PVC termination, a short piece of PP pipe will need to be cut, as shown below, to transition from the bell end of the pipe to the PP to PVC adapter. Cut a piece of PP pipe that is long enough to go through the wall and have about 2"...

  • Page 30: Water Supply Connections

    Installation Check List A. Water Heater Location D. Relief Valve ❑ Close to area of vent. ❑ Discharge line run to open drain. ❑ Indoors and protected from freezing temperatures. ❑ Discharge line protected from freezing. ❑ P roper clearance from combustible surfaces observed and water heater is not installed on a E.
  • Page 31 Operation Before operating this water heater, be sure to read and follow the instructions on the label pictured below and all other labels and warnings on the water heater and printed in this manual. Failure to do so can result in unsafe operation of the water heater resulting in property damage, bodily injury, or death.

  • Page 32: 2. Emergency Shutdown

    Operation SAFETY PRECAUTIONS A. DO turn off manual gas shut-off valve if water heater has been F. If there is any difficulty in understanding or following subjected to over heating, fire, flood, physical damage or if gas the OPERATION or MAINTENANCE instructions, it is supply fails to shut off.

  • Page 33: User Interface

    User Interface 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 Service Enable/Disable Menu Button Button Startup Setting Menu...

  • Page 34: User Interface

    User Interface BASIC SETTINGS: The basic settings in you water heater sponse can be selected to the following: can allow you to change the temperature unit, screen • Open adjustment lock/unlock, enabling/disabling the alarm • Closed beep, and your EcoNet network instance. Simply select •...

  • Page 35: Service Menu

    User Interface Status Menu MORE FUNCTION: Selecting the more function your heat- er will bring you to a prompt showing you the current The Status screen provides information on the current temperatures of the lower/upper tank, Flue tempera- operating status, diagnostics and sensors. This screen ture, ECO switch state, and Auxiliary relay state.
  • Page 36 User Interface ALARMS: The current alarms function allows you to see SYSTEM HEALTH: The system health function allows you any problems that have been detected by your water to see the current health of your hot water heater’s heater. Also, by selecting on the current alarm you can combustion health and tank health status.
  • Page 37 Maintenance Properly maintained, this water heater will provide years Any new installation should have a tank inspection of dependable, trouble free service. It is strongly program set up initially for frequent inspection. The suggested that a regular routine maintenance program first inspection should be within a six month period.

  • Page 38: Pressure Switch Inspection

    Before You Call For Service… Troubleshooting Tips Status: Standby Save time and money! Review the charts on the following pages first and you may not need to call for service. 120° If one of the health indicators is blinking on the home screen or the service icon is blinking there is an issue with the operation of your water heater.

  • Page 39: Before You Call For Service

    Before You Call For Service… Troubleshooting Tips Save time and money! Review the charts on the following pages first and you may not need to call for service. Problem Possible Cause What To Do Gas control ploblem Contact a qualified service technician. Unable to light Unit or electrical supply line not properly Verify that the electrical supply line and unit have...
  • Page 40 Before You Call For Service… Alarm (‘A’) and Alert Description Current Alarm Screen Display (‘T’) Codes A001 Ignition lockout. Ignition lockout due to a total of 9 consecutive ->Clear error code by turning the unit off/on. A001 failed ignitions. This will disable the heater. If problem persists, please contact technical sup- port or service provider.
  • Page 41 Before You Call For Service… Alarm (‘A’) and Alert Description Current Alarm Screen Display (‘T’) Codes A016 High Tank Temperature. Call Tech Service. Energy Cutout (ECO) switch is open. This will ->Clear error code by pressing clear button. A016 disable the heater. Refer to use and care manual for troubleshoot- ing, or contact technical support.
  • Page 42 Before You Call For Service… Alarm (‘A’) and Alert Description Current Alarm Screen Display (‘T’) Codes A025 No Blower RPM feedback. Call Tech Ser- Control does not detect blower RPM. This will vice A025 disable the heater. ->Please contact technical support or service provider.
  • Page 43 Before You Call For Service… Alarm (‘A’) and Alert Description Current Alarm Screen Display (‘T’) Codes Gas relay #2 contacts failed to properly close. A037 Gas Relay 2 stuck open. Call Tech Service This can cause gas valve cycling and gas A037 ->If problem persists, please contact techni- buildup in the burn chamber.
  • Page 44 Before You Call For Service… Alarm (‘A’) and Alert Description Current Alarm Screen Display (‘T’) Codes T105 Water Leak Sensor Not Installed Check to see if leak sensor is installed in the bot- ->Check water leak sensor connection. Refer T105 tom pan.
  • Page 45 Before You Call For Service… Alarm (‘A’) and Alert Description Current Alarm Screen Display (‘T’) Codes T117 Time to Drain and Inspect Tank Periodic maintenance, inspection, and upkeep ->Refer to the use and care manual for in- T117 on the unit. structions, or contact technical support or service provider.
  • Page 46 Before You Call For Service… Alarm (‘A’) and Alert Description Current Alarm Screen Display (‘T’) Codes T128 Middle Anode Open Anode “open” circuit. This can be caused by ->Check wiring connections for the middle T128 wiring damage, wiring disconnected, or anode anode.

  • Page 47: Replacement Parts

    Replacement Parts Instructions For Placing a Parts Order All parts orders should include: Part description (as noted below) and number of parts desired. The model and serial number of the water heater from the rating plate. CAUTION: For your safety DO NOT attempt repair of gas piping, gas control burner, vent connectors or other safety devices.
  • Page 48 Wiring and Schematic Diagrams AX5631 CAUTION Label all wires prior to disconnection when servicing controls. Wiring errors can cause improper and dangerous operation VERIFY PROPER OPERATION AFTER SERVICING!
  • Page 49 NOTES:...
  • Page 50 NOTES:...
  • Page 51 NOTES:...

  • Page 52: How To Obtain Service Assistance

    In The U.S.A.: d. Date of original installation and dates any service Rheem Manufacturing Co., Water Heater Division work was performed. ATTN: Technical Service 800 Interstate Park Drive e. Details of the problem as you can best describe Montgomery, AL 36109 them.

This manual is also suitable for:

Ghe100suGhe100ssGhe80su

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