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26

PRESSURE RELIEF VALVE

To fill the water heater with water;

Be certain there are no loose particles or dirt in the

piping. Keep a copper pipe diameter at NPT 3/4 inch

diameters to allow the full flow. If the hot and cold

connections are reversed, the heater will not work

properly and could damage the unit. Be sure to con-

nect them correctly.

CAUTION

!

!

The temperature-pressure relief valve should be
manually opened once a year.

 CAUTION

!

!

No one is in front of or around the outlet of the

temperature-pressure relief valve discharge line

when in use.
If after manually opening the valve and it fails to

completely reset and continues to release water,

immediately close the cold water inlet to the

water heater, follow the draining instructions,

and replace the temperature-pressure relief  valve

with a new one. The discharge capacity must

be at least 236,000 BTU/HR for GU32DV (199,

000 BTU/HR for GU28DV, 180,000BTU/HR for
GU26DV and 145,000 BTU/HR for GU20DV).

FILLING THE WATER

Never  use  this  hot  water  heater  unless  it

is  completely  filled  with  water.

To prevent damage to the tank, the tank must be

filled with water. Water must flow from the hot

water faucet before turning "ON" gas to the water

heater.

!

!

 CAUTION

Water  Supply  Connection

Water pipe line joint:

Pipe joint sealing compound or dope should be used

sparingly for sealing threaded joints on metal piping
having NPT tapered thread.

Care should be taken to ensure that:

1.

For  Installations  in  the  State  of  California:

Close the water heater drain valve by turning the

knob to the right. The drain valve is on the lower

front of the water heater.

Open the cold water supply valve to the water

heater.

To ensure complete filling of the tank, allow air to

purge by opening the nearest hot water faucet. Al-

low water to run until a constant flow is obtained.

This will let air out of the water heater and piping.

Check all new water piping for leaks. Repair as

needed.

 CAUTION

!

!

California Law requires that residential water

heaters must be braced, anchored or strapped to

resist falling or horizontal displacement due to

earthquake motions. A brochure with generic

earthquake bracing information can be obtained

from: Office of the State Architect, 400P Street,

Sacramento, CA 95814 or you may call 916-445-

8100.

 CAUTION

!

!

2.

DRAINING THE WATER

Do not open the draining valve without connecting

a hose so that water can be diverted to an area

where  water  damage  is  not  a  problem.  Do  not

remove the draining valve  from the unit without

first  draining the  tank.

!

!

 CAUTION

Connect garden hose to the draining valve located on

the bottom right of the unit.

Open the valve by using a flat head screw driver to

drain water with the hose.

After draining the tank, turn the valve body to remove

the draining valve from the unit and clean the filter.

If local codes require the water heater to be raised

18

 above the floor, please install GU20DV/GU26DV

on at least 6.5

 platform. GU28DV/GU32DV does

not need to be raised as its igniters and burner are
at least 18" above floor. Eternal is FVIR compliant.

Содержание GU20DV

Страница 1: ...l or components of the product itself WARNING 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 yo...

Страница 2: ...34 Hot water temperature over 125 F can cause severe burns instantly or death from scalding Children disabled and elderly are at the highest risk of being scalded Temperature limiting valves are avai...

Страница 3: ...ce of leaking gas Be sure to smell next to the floor because gas is heavier than air and will settle on the floor B A Installation Codes The installation must conform with local codes or in the absenc...

Страница 4: ...4 Parts Diagrams for Model GU28 32DV 505 11 12 1 28 32 1...

Страница 5: ...006 1 7 Panel Bottom 151010009 1 8 Control Panel Assembly 301080170 1 9 Temperature and Pressure Relief Valve 194010281 1 10 Intake Collar Assembly 307060517 1 11 Top Packing 151010200 1 12 Plug 60102...

Страница 6: ...Parts Diagrams for Model GU20 26DV 505 11 12 1 20 26 1 6...

Страница 7: ...006 1 7 Panel Bottom 151010009 1 8 Control Panel Assembly 301080170 1 9 Temperature and Pressure Relief Valve 194010281 1 10 Intake Collar Assembly 307060517 1 11 Top Packing 151010200 1 12 Plug 60102...

Страница 8: ...faucet Allow water to run until a constant flow is obtained This will let air out of the water heater and piping Open a hot water tap to check that water will flow to that tap Then close the hot wate...

Страница 9: ...mperature Setting Button with unit ON Temperature setting is only adjustable when the water heater is not in use The maximum water temperature setting can be limited by DIP switches This manual settin...

Страница 10: ...ent in faucet aerators shower heads and screens could impair water flow and cause the water heater to deliver less than its full output or to shut down completely Check any of these screens or shower...

Страница 11: ...open A secondary air hole thermistor short open A vent condition is not normal Temperature too high on a burner thermistor Mixing control valve is not connected Mixing control valve initialization fai...

Страница 12: ...Manifold Pressure Gas Valve Type Unit Dimensions WxHxD Electrical Power Supply Unit Weight lbs Gas Input Gas Supply Pressure Combustion Analysis Temperature Settings Thermal Efficiency Packaged Weigh...

Страница 13: ...gas vent The appliance should be located in an area where leakage of the tank or connections will not result in damage to the area adjacent to the appliance or to lower floors of the structure When s...

Страница 14: ...1 Intake Top x 1 O Ring G95 x 1 Exhaust Collar x 1 Valve Adaptor x 1 Orifice for LPG x 1 LPG Label x 1 Top Packing x 1 Drain Cap x 1 Mesh Screen x 2 Self Tapping Screw T4x16 x 5 Philips Head Screw M4...

Страница 15: ...alve on the side of unit Make sure the T P Relief is secured to prevent water leak Please install theTop Packing when using PVC ABS CPVC as the intake pipe Metal pipes such as stain less steel do not...

Страница 16: ...unit on a water heater stand that raises the unit at least 6 from the floor where seepage can accumulate underneath the unit Description In compliance with NSF 5 standard water heaters should be moun...

Страница 17: ...nstalled in a manner which allows inspection of the installation of the venting pipes and joints as well as periodic in spection after installation as required by ANSI Standard When determining the in...

Страница 18: ...least 6 from adjacent unprotected com bustible surfaces Joint of vent connectors should be securely fastened by sheet metal screws or other ap provedmethod The entire vent system must not exceed the s...

Страница 19: ...All vertical terminating vent installations Horizontal terminating vent Installations if a vertical rise in the vent system exceeds 5 ft If more than one elbow is used in the vertical section a conden...

Страница 20: ...ate trap PVC schedule 40 ASTM D1785 PVC DWV ANSI ASTM D2665 CPVC schedule 40 ASTM D2846 ABS schedule 40 ASTM D2661 CEMENTING PVC ABS or CPVC PIPE and FIT TING All primers cleaners and cements must mee...

Страница 21: ...the center line of the terminal E 12 inch min clearance to unventilated soffit F Clearance to outside corner G 2 feet clearance to inside corner formed by two exterior walls H 4 feet clearance to eac...

Страница 22: ...can be vented straight up and horizontal section is not required for vertical terminations Condensate drain must be used in all vertical terminations Venting Material PVC DWV ANSI ASTM D2665 Once the...

Страница 23: ...he unit Remove the gas supply pressure test port screw and connect manometer to this port turn on the gas to the water heater Turn the water heater on and open multiple taps to force unit into high fi...

Страница 24: ...ter heater must be vented in accordance with Venting of Equipment section of the latest edition of the National Fuel Gas Code ANSI Z223 1 and all appli cable local building codes Always use approved c...

Страница 25: ...e must be provided to control thermal expansion Troubleshooting Thermal Expansion Contact the water supplier or local plumbing inspector on how to control this situation WARNING Be careful not to reve...

Страница 26: ...e that 1 For Installations in the State of California Close the water heater drain valve by turning the knob to the right The drain valve is on the lower front of the water heater Open the cold water...

Страница 27: ...st be electrically grounded Label all wires prior to disconnection when servicing controls Wiring error can cause im proper and dangerous operation Verify proper operation after servicing CAUTION Thew...

Страница 28: ...32DV switch 5 OFF switch 4 Test selection switch 2 switch 3 Temperature selection 1 switch 2 Temperature selection 2 switch 1 Temperature selection 3 O N 8 7 6 5 4 3 2 1 switch 8 Reserved switch 7 Res...

Страница 29: ...29 Wiring and Connection Diagram...

Страница 30: ...n 2 screws securing the Control Panel Assembly to the frame and remove the Assembly from Water Heater Loosen 2 screw and the nut of the gas pipe and insert with Orifice LP Tighten the loose nut to mak...

Страница 31: ...Valve Adaptor LP Reverse the steps above by reassembling the packing Gas Flange and Connector Bracket Make sure all screws and secure and tightened Change Dip Switch No 8 position from left to right 8...

Страница 32: ...tion 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...

Страница 33: ...ternal with pre heater i e Solar 33 Recirculation with 2 Units manifold These diagrams are for reference as basic guides Each installation should be engineered properly and compliant to Local and Stat...

Страница 34: ...esponsible for shipping charges of such replacement parts This Warranty does not cover any failures or operating difficulties due to accident abuse misuse alteration misapplication vandalism improper...

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