User manual FIELD CONTROLS 01977100

[. . . ] When routing the tubing, avoid kinking the tubing by bending the tubing too sharply. Support the tubing at 2' intervals using installer supplied tube clamps. Figure 1 Figure 2 Page 2 Figure 3 ADJUSTMENTS PROVING SWITCH ADJUSTMENTS After proper air flow is established, the pressure switch adjustment is made by turning the pressure switch adjustment screw clockwise (See Figure 4) until burner operation stops. Turn the adjustment screw an additional 1/4 to 3/4 turn counterclockwise to ensure adequate switch adjustment. WARNING: Failure to properly adjust the pressure switch as specified above could lead to improper operation of the pressure switch which will result in a hazardous condition and bodily harm! [. . . ] WARNING: Failure to properly adjust the pressure switch as specified above could lead to improper operation of the pressure switch which will result in a hazardous condition and bodily harm!THERMOSTAT HEAT ANTICIPATOR ADJUSTMENT After venting kit installation and checkout, check the amperage current draw through the thermostat circuit and adjust the thermostat anticipator accordingly. INSTALLATION OF GAS PRESSURE SWITCH CAUTION: Check gas control valve pressure. (See Figure 5) NOTE: If installing on an existing appliance, shut off gas supply to gas valve before plug removal. Replace the pressure tap plug with the 1/8" pipe nipple and pipe tee. The gas pressure switch is supplied with a restrictor orifice in the inlet and outlet ports. CAUTION: If for any reason the system has shut down during operation, the cause of the system failure should be investigated and corrected before resetting the safety switch and restarting the system. wire should be used when wiring safety spillage switches, to reduce the voltage drop in the thermocouple circuit. Thread the junction block into the thermocouple port and thermocouple into the bottom of the junction block. (See Figure 8) Figure 4 Figure 5 Figure 6 Figure 7 Figure 8 Page 3 NOTE: Draft spillage switches should be mounted 90 degrees apart, and mounted opposite from the vent outlet direction. Refer to the SWG Venter installation instructions for setting system airflow. Page 5 SYSTEM CONTROL CHECK OUT PROCEDURES 1. Adjust the thermostat and/or aquastat to call for heat and observe the power venting system for proper operation sequence. After a short delay, the relay is energized, the venter motor starts and the vent damper begins opening. Pressure switch closes, the vent damper reaches the open position and the burner starts. Aquastat is satisfied, the burner stops and the vent damper begins closing. This should open the pressure switch contacts and stop burner operation. Then adjust the thermostat to call for heat, which will energize the venter motor. Turn gas control valve to the PILOT position, which will start a 1 to 3 min. Allow the water heater to heat up to operating temperature, then disconnect the power to the gas pressure switch. Allow approximately 2 minutes of flue gas spillage for the spillage switches to sense the spillage and disrupt the thermocouple circuit, halting the gas flow to the pilot and burner. [. . . ] Allow the water heater to heat up to operating temperature, then disconnect the power to the gas pressure switch. Allow approximately 2 minutes of flue gas spillage for the spillage switches to sense the spillage and disrupt the thermocouple circuit, halting the gas flow to the pilot and burner. Reset the spillage switches and light the pilot, then perform a second safety spillage test (Steps 1 and 2). CAUTION: If for any reason the system has shut down during operation, the cause of the system failure should be investigated and corrected before resetting the safety switch and restarting the system. [. . . ]