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Remove  Casing  From  Water  Heater

Loosen 2 screws securing the Front Panel on the

bottom front, and push downwards to remove the
Front Panel.

Control Panel
Assembly

Fixing Screw

Loosen 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

make sure the orifice is installed properly.

Change  the  NG  orifice  to  LP  orifice

30

1.

2 .

3 .

Liquid  Propane  Gas(LPG)  Conversion

Orifice LP

Nut

Gas Tube

Fixing Screw

Front Panel

Fixing Screw

Summary of Contents for GU20DV

Page 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...

Page 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...

Page 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...

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

Page 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...

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

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 29: ...29 Wiring and Connection Diagram...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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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