John Considine Jr, Articles H

0000003019 00000 n When the thermostat calls for heat, the first automatic valve and the second automatic valve operator open. When the thermostat calls for eat, the first automatic valve and the second automatic valve operator are energized. Turn off the main gas supply to the appliance. Several troubleshooting methods applied to and including bypassing the thermostat but failed to yield any results. The Honeywell Home trademark is used under license from Honeywell International Inc. . Bulk update symbol size units from mm to map units in rule-based symbology. Carefully check the main burner light off at the step pressure. rev2023.3.3.43278. This decreases gas pressure under the second automatic valve diaphragm and repositions the valve disc further from the seat. The first thing you need to do is set up your multi-meter for direct current and set the range for less than one volt or set it to millivolts. Insert the replacement spring with the tapered end down. If it is, simply replace the igniter/flame rod assembly. d7Pq~XxqJea6`^ Ys4Y/{ Pilot gas flows through a port in the ushing around the reset button shaft to the pilot burner. I go over how it is Wired, what Voltages you should be reading while the flame is present and the voltages needed for the pilot valve and main gas valve to work correctly. 0000036895 00000 n The second automatic valve operator is de- energized, closing the channel to the pressure regulator, and opening a channel to the underside of the second automatic valve diaphragm. Thermopile Voltage Low: What It Means and How to Fix It? - H2ouse Euler: A baby on his lap, a cat on his back thats how he wrote his immortal works (origin?). As for the gas valve it is probably a "general controls" valve but any 800 millivolt gas valve can be used as a replacement. Unscrew compression fitting from the pilot outlet (Fig. Set the thermostat to the lowest setting and shut off the electric power to the appliance. There must be two terminals in this connector block that powers the gas valve coil. Install the Q340A asfollows: Connect ThermocoupleConnect thermocouple lead as shown in Fig. Cycle the main burner several times, allowing at least 30 seconds between cycles for the regulator to resume the step function. 15. If the pilot flame has gone out, follow these instructions exactly: TO TURN OFF THE APPLIANCEVACATION SHUTDOWN: Turn gas control knob clockwise from ON to PILOT. Remove the pilot adjustment cover screw. Gas control is a safety device. Home Improvement Stack Exchange is a question and answer site for contractors and serious DIYers. IF CHECKING GAS INPUT BY CLOCKING THE GAS METER: IF CHECKING GAS INPUT WITH A MANOMETER (PRESSURE GAUGE): The gas control outlet pressure should match the manifold pressure listed on the appliance nameplate.