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Eternal GU32DV Operator's Manual

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Natural Gas (NG) - Factory Default
Liquid Propane Gas (LPG) - Optional Conversion
Model
GU32DV / 505(11,12)1321
Model
GU28DV / 505(11,12)1281 (Optional)
Model
GU26DV / 505(11,12)1261
Model
GU20DV / 505(11,12)1201 (Optional)
Service Information Center:
Call us first if you have any questions with this
product. We can help you with questions about
assembly and Water Heater operation or if there
are damaged or missing parts when you unpack
this unit from the shipping box. Please call before
returning to the store.
1- 866- 946- 1096
8am-4:30pm CST, Monday through
IMPORTANT:
Ÿ
Only specially trained and authorized
personnel are permitted to service this
water heater.
Ÿ
NOTE TO ASSEMBLER / INSTALLER:
Leave this manual with the consumer.
Ÿ
NOTE TO CONSUMER:
Keep this manual for future reference.
Ÿ
RECORD YOUR SERIAL # _________________
see silver CSA label on Gas Water Heater
(
Friday
!
Read this Operator's Manual carefully and be sure
your Water Heater is properly assembled, installed
and maintained. Failure to follow these instructions
exactly could result in a fire or explosion, serious
bodily injury and/or property damage.
Do not store or use gasoline or other flammable vapors
and liquids in the vicinity of this or any other appliance.
!
WHAT TO DO IF YOU SMELL GAS
Do not try to light any appliance.
1.
2.
Do not touch any electrical switch; do not use
any phone in your building.
Immediately call your gas supplier from a
3.
neighbor's phone. Follow the gas supplier's
instructions.
If you cannot reach your gas supplier, call
4.
the fire department.
!
)
California Proposition 65 lists chemical substances
known to the state to cause cancer, birth defects,
death, serious illness or other reproductive harm.
This product may contain such substances, be
their origin from fuel combustion (gas, oil) or
components of the product itself.
1
OPERATOR'S MANUAL
C
WARNING
WARNING
WARNING
157070132 Date 2009/8/5
!
!
!

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Summary of Contents for Eternal GU32DV

  • Page 1: Primary Safety Warning

    OPERATOR'S MANUAL Natural Gas (NG) - Factory Default Liquid Propane Gas (LPG) - Optional Conversion Model GU32DV / 505(11,12)1321 Model GU28DV / 505(11,12)1281 (Optional) Model GU26DV / 505(11,12)1261 Model GU20DV / 505(11,12)1201 (Optional) WARNING Service Information Center: Read this Operator's Manual carefully and be sure...

  • Page 2: Table Of Contents

    WARNING Primary Safety Warning.......1-3 Pre-Installation Instructions.......3 If you detect abnormal combustion or abnor- Parts Diagram and List for GU28DV/GU32DV.. mal odors, or an earthquake, tornado or fire: ..............4-5 1. Turn off the hot water supply at the faucet. Parts Diagram and List for GU20DV/GU26DV..

  • Page 3: Pre-Installation Instructions

    Pre-Installation Instructions For Your Safety TO TURN OFF GAS TO WATER HEATER WARNING Turn off all electrical power to the water heater if ser- vice is to be performed. Turn the manual gas valve located on the outside of If you do not follow these instructions exactly, the unit clockwise to the off position.
  • Page 4 Parts Diagrams for Model GU28,32DV / 505(11,12)1(28,32)1...
  • Page 5 Parts List for Model GU28,32DV / 505(11,12)1(28,32)1 DESCRIPTION Part # Panel, Front 302040001 Panel, Rear 302040002 Panel, Left 302040003 Panel, Right 302040004 Panel, Top / Front 301040005 Panel, Top / Rear 301040006 Panel, Bottom 151010009 Control Panel Assembly 301080170 Temperature and Pressure Relief Valve 194010281 Intake Collar Assembly 307060517...
  • Page 6 Parts Diagrams for Model GU20,26DV / 505(11,12)1(20,26)1...
  • Page 7 Parts List for Model GU20,26DV / 505(11,12)1(20,26)1 DESCRIPTION Part # Panel, Front 301040001 Panel, Rear 301040002 Panel, Left 301040003 Panel, Right 301040004 Panel, Top / Front 301040005 Panel, Top / Rear 301040006 Panel, Bottom 151010009 Control Panel Assembly 301080170 Temperature and Pressure Relief Valve 194010281 Intake Collar Assembly 307060517...

  • Page 8: Operating Instructions

    Operating Instructions NORMAL OPERATION STARTING THE SYSTEM To turn on your water heater For your safety, read before operating This water heater does not have a pilot. It is equipped Open a hot water tap. with an ignition device which automatically lights the Burner will ignite;...
  • Page 9 How To Use The Front Control Interface To switch the water heater ON: from OFF condition DANGER Press the Power Button. -The temperature selected will be indicated on the Digital Monitor. Hot water heater temperature over 125 F can -The ON Indicator will light up. cause severe burns instantly or death from When running the water by opening the water tap, scalding.

  • Page 10: Maintenance And Service

    Sediment Build-up: Unlike a typical storage tank, Maintenance and Service this heater has a self cleaning system initiated by the flow of water. Build up of sediment in faucet aerators, shower heads and screens could impair WARNING water flow and cause the water heater to deliver less than its full output, or to shut down completely.

  • Page 11: Troubleshooting

    Troubleshooting TROUBLESHOOTING This unit has the ability to check its own operation continuously. If an error occurs, a message will flash on the digital monitor of the front panel. This assists with diagnosing the error, and may enable you to overcome a problem without a service call. Please quote the code displayed when inquiring about service.

  • Page 12: Specifications

    Eternal Hybrid Water Heater Technical Specifications Model Name GU20DV (Optional) GU26DV GU28DV (Optional) GU32DV Model Number (CSA) 505(11,12)1201 505(11,12)1261 505(11,12)1281 505(11,12)1321 Indoor Only Installation Sealed Combustion Direct Vent Type Flue system With or Without Remote Controls Operation Direct Electronic Ignition and Automatic Flame Sensing...
  • Page 13 35 feet with one 90 elbow. If more elbows are re- are permitted to service this water heater. quired the venting distance must be reduced 5 feet Unpacking Your Eternal Water Heater for every 90 elbow. Unpack the unit carefully and make sure that all...
  • Page 14 T&P Valve and Intake/Exhaust Top Installation Loosen 2 screws holding the Front Panel at the bottom, push the panel down and towards yourself to remove. Take the accessory box out of the front of the unit. This box contains: T&P Relief Valve x 1 Intake Top x 1 O Ring (G95) x 1 Exhaust Collar x 1...
  • Page 15 T&P Valve and Intake/Exhaust Top Installation Install the Intake Top and secure with M4 screws. Install the T&P Relief Valve on the side of unit. Make sure the T&P Relief is secured to prevent water leak. Please install the Top Packing when using PVC/ABS/ CPVC as the intake pipe.
  • Page 16 Mounting Procedure for Commercial / Foodservice Description: In compliance with NSF-5 standard,water heaters should be mounted in a way that seepage cannot accumulate under the unit. Grand Hall recommends either applying watertight caulking along the bottom edge of the unit with the floor surface, or install Eter- nal in conjunction with a water heater stand or plat- form that would raise the unit at least 6”off the floor.
  • Page 17 Combustion Air and Exhaust Maintenance and Service VENT PIPE SEPERATION WARNING The inlet and outlet vent pipes must be separated by a minimum distance of 7" horizontally, and 7" vertically (distance is measured from center of intake hole cut- When determining the installation location for a out to exhaust hole cutout).
  • Page 18 Combustion Air and Exhaust Venting Through an Outside Wall - Clerances VENTING CONNECTION The vent system must be gas tight. All seams and joints 0" clearance for 4" PVC, ABS, or CPVC Schedule must be sealed with silicone sealant or adhesive tape 40 piping from combustible surfaces.
  • Page 19 Condensate Drain Installation CONDENSATE DRAIN REQUIREMENTS VERTICAL TERMINATION HORIZONTAL TERMINATION Condensate formation can occur in high efficiency direct vent appliances. To prevent condensate damage, a conden- sate drain must be installed under the following conditions: All vertical terminating vent installations. Horizontal terminating vent Installations if a vertical rise in the vent system exceeds 5 ft.
  • Page 20 VENT PIPE MATERIAL Cut pipe ends squarely removing all burrs and dirt. Eternal Hybrid Water Heater is a gas burning appliance with fan-assisted exhaust. The appliance must be vented Dry fit pipe and fittings to be connected for proper fit.
  • Page 21 Vent Pipe Installation & Terminator Position EXHAUST VENT TERMINATOR POSITION Are a US Insta lla tions 12 inches m in. clearanc e above grade, veranda, porch, deck, balc ony or m axm um unticipatde snow level. 12 inches m in. clearanc e on top or 4 feet c learance on top or 4 feet clearanc e below or to the s ide of door or window that m ay be open.
  • Page 22 90 degree elbows as specified in the table. Eternal can be vented straight up and horizontal section is not required for vertical terminations. Condensate drain must be used in all vertical...
  • Page 23 GU26DV 0.9 "WC 2.4 "WC GU28DV 0.4 "WC 1.75 "WC GU32DV 0.4 "WC 2.4 "WC Figure 1: The gas valve is designed with both test ports for gas supply pressure to the unit, and manifold pressure. Refer to Figure 1 for locations of the test ports on the gas valve.

  • Page 24: Gas Supply Piping

    Gas Supply Piping GAS SUPPLY PIPING Check for Gas Leaks NOTE: This unit needs a manual gas control valve When connections are completed, check for gas (shut-off valve) that must be connected to the unit leaks by applying soapy water to all gas fittings and before the gas line.

  • Page 25: Water Supply Connection

    Water Supply Connection AFTER INSTALLATION WATER SUPPLY CONNECTION An approved manual water control valve (water After the water heater installation is complete, purge shutoff valve) must be placed on the cold water the water line to remove all the debris and air from the line.

  • Page 26: Water Supply Connection

    The discharge capacity must If local codes require the water heater to be raised be at least 236,000 BTU/HR for GU32DV (199, 18” above the floor, please install GU20DV/GU26DV 000 BTU/HR for GU28DV, 180,000BTU/HR for on at least 6.5”...

  • Page 27: Electrical Connection

    Electrical Connection ELECTRICAL CONNECTIONS CAUTION WARNING Label all wires prior to disconnection when servicing controls. Wiring error can cause im- The water heater must be electrically grounded. proper and dangerous operation. Verify proper operation after servicing. Installation Codes: The water heater requires a dedicated electrical power Follow the requirements of the local authority having ju- supply of 120 VAC/60Hz, and it must be properly risdiction.
  • Page 28 Controller DIP Switch Setting Location of DIP Switch DIP Switch Main Controller Default Setting Layout switch 8 : NG / LPG switch 7 : Maximum gas input selection 1 switch 6 : 20DV / 26DV or 28DV / 32DV switch 5 : OFF switch 4 : Test selection switch 2 switch 3 : Temperature selection 1 switch 2 : Temperature selection 2...
  • Page 29 Wiring and Connection Diagram...

  • Page 30: Liquid Propane Gas Conversion

    Liquid Propane Gas(LPG) Conversion Remove Casing From Water Heater Loosen 2 screws securing the Front Panel on the bottom front, and push downwards to remove the Front Panel. Front Panel Fixing Screw Loosen 2 screws securing the Control Panel Assembly to the frame, and remove the Assembly Control Panel from Water Heater.
  • Page 31 Liquid Propane Gas(LPG) Conversion Replace NG Valve Adaptor With LPG Adaptor Gas Packing-2 Valve Adaptor G as Val ve Gas Packing-3 Flange Gas Packing-1 Packing Gas Valve Conne c tor Bracket Loosen and remove 5 screws securing the Gas Valve Flange. Remove the Gas Valve Flange, Packing and Valve Adaptor(NG).

  • Page 32: Plumbing Diagrams

    Recirculation System with an Eternal Water Heater Single Eternal with Storage Back-up These diagrams are for reference as basic guides. Each installation should be engineered properly and compliant to Local and State Codes.
  • Page 33 Recirculation with 2 Units manifold Single Eternal with pre-heater, i.e. Solar These diagrams are for reference as basic guides. Each installation should be engineered properly and compliant to Local and State Codes.

  • Page 34: Warranty Terms

    Grand Hall Limited Warranty Grand Hall will warrant to the ORIGINAL PURCHASER of this gas water heater that it will be free of defects in material and workmanship for set period below from the date of purchase when installed and operated in a single- family residence in accordance with the instructions in the manual and all local/state/federal codes.

This manual is also suitable for:

Gu28dvGu26dvGu20dv

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