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Manual de usuario Bradford-White Corp, modelo GP 6 40YPC T 100

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3. Disconnect the electric connection by unplugging the transformer from the wall outlet (Figure 58). 4. Remove the manifold cover/ outer door from the unit by depressing on the lower portion and pulling outward. 5. Unplug the 3-wire pressure switch/fan/sensor electrical connection of the wiring harness from the gas control valve/thermostat by depressing the lower portion of the snap clip to open and pulling down the connector (Figure 59). 6. Unplug the electric flag terminals and air pressure tubing from the pressure switch (Figure 60). 7. Remove the FV sensor by depressing the snap lock to open the FV sensor cover, slide the FV sensor out of the cover and unplug the electrical flag terminals connections (Note: place the FV sensor in a safe place as it will be reinstalled later) (Figure 60). 8. Using a phillips head screwdriver remove the 2 screws of the air intake chamber screen (Note: save screws for reinstallation later) (Figure 62). 9. Remove the air intake chamber screen by lifting upward and outward (Figure 62). 10. Please take note of the wire position routing around the fan inside the air intake chamber as this wire positioning will need to be duplicated upon installation of the new wiring harness (Figure 62). 11. Using a phillips head screwdriver, remove the 4 screws securing the air intake chamber box to the water heater’s side (also keeping these screws in a safe place for reinstallation later) (Figure 61). 12. Rotate the top of the air intake chamber box from left to right (only a few inches in both directions) while pulling outward at the bottom removing the air intake chamber box from the combustion chamber pipe saving the air intake chamber gasket for reinstallation (Figure 61). GAS CONTROL VALVE/THERMOSTAT PRESSURE SWITCH/FAN, FV SENSOR CONNECTOR Figure 59. Figure 60. FV SENSOR PRESSURE SWITCH PRESSURE TUBING & WIRING HARNESS FLAG TERMINALS g HOTTER COOLER Electronic Control Display Figure 57. ON/OFF SWITCH ON OFF Figure 58. UNPLUGGED 35 Replacing the Wiring Harness: 13. Locate the male to female electrical connection with close pin lock on wiring harness (located on the right side of fan) (Figure 62). 14. To separate the electrical connection of the fan and wiring harness: press down on the back portion of the close pin lock of the electrical connection while pulling the connection in the opposite directions. 15. The wire harness goes through the rubber wire protector in the back of the air intake chamber box (Figure 62). 16. Reach inside the air intake chamber box and push on the center of the rubber wire protector pushing it and the wiring harness wires to the outside of the air intake chamber box (Figure 62). 17. Remove the wiring harness from the wire channeling in the back center of the air intake chamber box (Figure 63). 18. The old wiring harness can now be discarded. Installing the New Wiring Harness: 19. Route the multi-lead portion of the new wiring harness through the opening at the bottom of the water heater’s jacket (Figure 64). 20. Insert the fan wiring harness wire through the back and into the fan box compartment by threading the connector through the opening and insert in approximately 6 inches of wiring (up to the rubber wire protector) (Figure 62). 21. Push the rubber wire protector into place in the back of the air intake chamber box (Note: The rubber wire protector must be positioned properly and locked into place around both sides of the air intake chamber box) (Figure 63). 22. Position the wiring harness wire in the wiring channeling molded down the back center of the air intake chamber box (Figure 63). 23. Plug the electrical connections of the fan into the wiring harness: Align the electrical connections in such a position as to ensure the locking portions of the connections are on the same side. Gently push the electrical connectors together until the snap lock on the wiring harness engages the angular lock on the fan connector. Do Not use undue force in pushing these connectors together (Figure 62). (Note: Connectors are designed in such a manner if the connection is not properly aligned they will not lock together). 24. Route the wiring inside the fan box to the outer edge of the fan in such a manner to ensure it will not be pinched or damaged upon installation of the air intake screen (Figure 62). Figure 61. AIR INTAKE CHAMBER BOX REMOVAL CHAMBER GASKET ROTATE FROM LEFT TO RIGHT AND PULL OUTWARD REMOVE SCREWS RUBBER WIRE PROTECTOR Figure 62. AIR INTAKE CHAMBER SCREEN. ELECTRICAL CONNECTION Figure 64. ROUTE WIRING HARNESS THROUGH OPENING AT BOTTOM OF JACKET. Figure 63. RUBBER WIRE PROTECTOR WIRE HARNESS INSIDE WIRE CHANNELING AIR PRESSURE TUBING CONNECTION REAR SIDE OF THE AIR INTAKE CHAMBER BOX 36 25. Install the air intake chamber screen, ensuring that the prongs of the lower portion of the air intake chamber screen are in place in the holding slots. Using the 2 screws removed in step 8, secure the air intake chamber screen (Figure 65). 26. Check the air press...