There must be two terminals in this connector block that powers the gas valve coil. See Table 3. an Elbow (angle) flange cannot provide a right-hand inlet when the ECO connector is used.NOTE: Flange Kits include one flange with attached O-ring and four mounting screws. If the O-ring is not attached or is missing, do not use the flange. hb``b``r` LT, bBPQ%@AL;LiaP2l3 2 It may not display this or other websites correctly. The three-position manual gas control knob has ON, OFF, and PILOT positions. Place gas control knob in PILOT position. The maintenance program should include regular checkout of the gas control, see the Startup and Checkout section, and the control system as described in the appliance manufacturer literature. Flanges available for 3/8, 1/2 and 3/4 inch straight and 90 angle connection. Some considerations are: Cycling frequency. Thread pipe into gas control. GAS CONTROL KNOB SETTINGSThe gas control knob has three settings:OFF: Prevents pilot and main burner gas flow.PILOT: Permits pilot gas flow only. We might be able to do something about it. This makes it ideal for fireplace and space heating uses that are vent free. 2). 0000010874 00000 n Natural to LP gas conversion kit available for nonTRADELINE standard and slow-opening models. And after two or so minutes, the gas chambers will be lit. Oa$2vlmmpTx{>z)~pc|N*ona0 Do not remove the existing window frame assembly. Connect the other end of the tubing to the pilot burner according to pilot burner manufacturer instructions. Use an ac voltmeter to measure the voltage across terminals TH and TR. To avoid the dangerous accumulation of fuel gas, turn off the gas supply at the appliance service valve before starting the installation, and perform Gas Leak Test after completion of installation. Zero clearance sleeve is required only for combustible walls. quick-connect terminals, must comply with applicable electrical codes and ordinances.Disconnect power supply before making wiring connections to prevent electrical shock or equipment damage. Do not force the gas control knob. To subscribe to this RSS feed, copy and paste this URL into your RSS reader. In replacement applications, locate the gas control in the same location as the old gas control. Hold each tester wand on the multimeter to one of the terminals on the gas valve. 0000001377 00000 n To adjust the pilot flame: LIGHT MAIN BURNERFollow the appliance manufacturer instructions or set the thermostat setting above room temperature to call for heat. Wiring terminal block color-coded beige to identify standing pilot models. The pilot light is auto so when the thermostat calls for heat, a spark is sent to the ignition lighting up the pilot. Place one meter lead to soldered point on back of valve and one to ground. Use new, properly reamed pipe free from chips. Below are my tests: If pilot burner flame still will not light: Assure the gas control knob is held in at least one minute to allow the thermocouple time to heat. Find many great new & used options and get the best deals for Robertshaw 710-502 Millivolt Low Capacity Gas Valve, 1/2" x 1/2", 70,000 BTU at the best online prices at eBay! 0000002758 00000 n If resistance is outside of specifications listed, the gas valve must be replaced. 0000066936 00000 n CHOOSE GAS CONTROL LOCATIONDo not locate the gas control where it may be affected by steam cleaning, high humidity, dripping water, corrosive chemicals, dust or grease accumulation, or excessive heat. Rear V ented Direct V ent Gas Fireplace Model: PLEASE READ THE INSTALLATION & OPERATING INSTRUCTIONS BEFORE USING THE APPLIANCE. So in short, I get heat both times of the day for say an hour and it just sits idle with the pilot lit. Determine if the pilot burner requires a thermocouple with a push-in clip or attachment nut, and attach the correct adapter to the. Troubleshooting the valve and looking for known common issues will give you peace of mind by ensuring the safe operation of your Honeywell appliance. 2. Most common. TABLE 6MAXIMUM LENGTH OF SUPPLEMENTARY LIMIT LEADWIRES WHEN USING Q309A THERMOCOUPLE. Check the regulator setting either with a manometer or by clocking the gas meter. As for the gas valve it is probably a "general controls" valve but any 800 millivolt gas valve can be used as a replacement. PROVIDE DISCONNECT MEANS AND OVERLOAD PROTECTION AS REQUIRED. See Fig. Mutually exclusive execution using std::atomic? Home and Building ControlHoneywell Inc.1985 Douglas Drive NorthGolden Valley, Minnesota 55422, Home and Building ControlHoneywell LimitedHoneywell Limite740 Ellesmere RoadScarborough, OntarioM1P 2V9, This is a legacy product document supported by Resideo. 0000026478 00000 n Use conversion factors in Table 2 to convert to capacities for other gases. Push and hold down the red reset button (Figs. This shuts off the pilot and main burner gas flow. You should NOT short out the t'stat terminals to check it. Making statements based on opinion; back them up with references or personal experience. JavaScript is disabled. 0000012695 00000 n (supposedly so they could fix them :yes: ). cut tubing to the desired length and bend as necessary for routing to pilot burner. See Fig. Regulator Cap Conversion Screw Pressure Regulator Housing, Cleaning the Standing Pilot Control System. 0000017288 00000 n In this HVAC Furnace Video, I go over the Operation and Troubleshooting of a 750 Millivolt Gas Valve and Thermopile/PowerPile. This category contains Honeywell SmartValve, Gas Controls, Millivolts, Pressure Regulators, Gas Control Parts and Industrial Gas Valves. If the pilot flame is engulfing the thermopile and you are not getting enough voltage to open the main gas valve then the thermopile may need to be replaced.Supervision is needed by a licensed HVAC Tech while doing this as Experience and Apprenticeship garners Wisdom and Safety.We've Partnered with TruTechTools.com! Site design / logo 2023 Stack Exchange Inc; user contributions licensed under CC BY-SA. Extinguish pilot flame. Dont touch any electrical switch or use the phone. hW[o8+ID:BZ(gENRCD'$( m;\{fgc3llFQl%|xI!>-88zzhb|AtJOr[b4-BFS! Required fields are marked *. Apply a moderate amount of good quality pipe compound to bushing, leaving two end threads bare. If it is flowing, measure the voltage between the 24V Hot and 24V Common leads to the SmartValve. If you don't test, it's just a. If another gas leak is detected, tighten adapter screws, joints, and pipe connections. Before lighting, smell all around the appliance area for gas. Several troubleshooting methods applied to and including bypassing the thermostat but failed to yield any results. 10. 0000004941 00000 n The pilot will remain lit, ready for return to normal service without relighting.COMPLETE SHUTDOWN: Turn the gas control knob clockwise to OFF. While holding tubing all the way in, slide compression fitting into place and engage threadsturn until finger tight. Filter. If the voltage is dead or not as rated, replace the valve. IF THE PILOT BURNER FLAME GOES OUT WHEN THE GAS CONTROL KNOB IS RELEASED, IF THE MAIN BURNER WILL NOT COME ON WITH A CALL FOR HEAT. 6 terminals + 2 jumpers = 4 effective terminals = 4 nodes. If necessary, adjust the pressure regulator to match the appliance rating. Gas valves are not serviceable; the following are simple troubleshooting and description of how gas valves operate. 0000003019 00000 n Turn the pressure regulator adjustment screw clockwise. )POWER UNIT:Hold-in current: 300 mA maximum.Drop-out current: 250 to 90 mA.THERMOCOUPLE:Nominal output: 30 mV (0.018 ohms).Open Circuit Turndown Voltage: 2 mV.ELECTRICAL CONNECTIONS (2): 1/4 inch male quick-connects. 0000026384 00000 n We come out with new videos every few days from my job sites, service calls, and the training shop! Remove the thermopile wiring connector from the gas control. Do not make sharp bends or deform the tubing. 30 0 obj <>/Filter/FlateDecode/ID[<07B8336975034BD12756FE90D2FD37D3>]/Index[10 37]/Info 9 0 R/Length 96/Prev 25390/Root 11 0 R/Size 47/Type/XRef/W[1 2 1]>>stream This includes a WIRING DIAGRAM. The opening is slowed because a gas flow restrictor in the passage from the second automatic operator slows the rate at hich gas pressure is reduced under the second automatic valve diaphragm after the automatic operator opens. 0000008848 00000 n The pilot stays lit fine and the thermopile generates about 360 millivolts, and there's no problem at the thermostat (checked voltage and shorting past it), but the main valve no longer opens. Ensure the O-ring is fitted into the groove of the flange. Readjust the full rate outlet pressure if necessary to improve light off characteristics. 0000139520 00000 n The gas valve is the load.need to have current flow from one leg of the thermopilethrough the limit switch ( zero ohms ) througn the thermostat switch ( approx zero ohms on call for heat) through the coil of the valveand back to the other terminal of the generator. 0000023456 00000 n You can test the rest of the system by temporarily replacing the generator with a 1.5 volt standard flashlight battery. Your Purchases through Amazon provide a means for channels such as mine to earn advertising fees from any purchases after clicking through. Unscrew compression fitting from the pilot outlet (Fig. Check the power supply rating on the valve and make sure it matches the available supply. Resistance between the THTP & TH terminals must be 11.5 W0.2 W 2. SYMPTOM POSSIBLE CAUSES CORRECTIVE ACTION. 0000026455 00000 n Remove the pilot adjustment cover screw. Yes, there is one screw to adjust the gas to the pilot and another to adjust the gas to the main burner. 0000036895 00000 n 0000039900 00000 n To convert control from one gas to another: INSTALL ADAPTERS TO GAS CONTROLIf adapters are to be installed on the gas control, mount them as follows: USING ADAPTERS TO SOLVE SWING RADIUS PROBLEMSIn some field service applications, it is difficult or impossible to thread the gas control onto the gas supply pipe because of space limitations. The main burner gas flow is blocked by both automatic valves. %PDF-1.5 % Cycle the main burner several times, allowing at least 30 seconds between cycles for the regulator to resume the step function. 0000015409 00000 n 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. 394349 9/64 inch hex tool for flange assembly screws. to protect them and prevent gas from leaking, and discourage tampering by untrained people. Gas valves exposed to high ammonia conditions, i.e., those used in greenhouses or animal barns may fail in one or two years. The minimum regulated capacity is 20 feet 3 /hour [0.6 meters 3 /hour]. honeywell millivolt gas valve troubleshooting From Gas Control Valve 1- Turn main gas on and proceed to next step. Inlet and outlet pressure taps included; both taps accessible from the top of gas control. THIS SHORTS VALVE COIL AND MAY BURN OUT THE ANTICIPATOR IN THE THERMOSTAT. Check if gas is flowing if you turn on the gas and the pilot burner doesn't light. To ensure proper operation, follow these guidelines: Locate the gas control in the appliance vestibule on the gas manifold. The main burner should go off and the pilot should remain lit. millivoltage automatic valve operator, and optional gas pressure regulator. Repeat after allowing the main burner to cool. startxref Learn more about Stack Overflow the company, and our products. 0000139215 00000 n 0000018497 00000 n Do not try to light any appliance. I hope you enjoy and find them very beneficial! Proper gas valve adjustment can save your home from a devastating fire. Replace the thermocouple if voltages are outside the acceptable range. 0000034533 00000 n These Videos are all part of our Training Series on HVACR Service, Installation, Preventative Maintenance, General Knowledge, and Tips. a. OD tubing. There should not be a flame-up there if the valve is working correctly. Helping You to Do It Yourself! DO NOT JUMPER THESE TERMINALS. Appliances that may cycle 120,000 times annually should be checked monthly. After installation is complete, use these instructions to check out product operation. The internal valve coil must then be connected to the topmost and bottommost of the four terminals. I was trying to use the "MILLIVOLT TROUBLESHOOTING CHART", on page 2 of this . TROUBLESHOOTING MILLIVOLT GAS VALVES Part # 023625 (natural) & 023624 (LP) TH TP TH TP MILLIVOLT CONTROL VALVE To check Resistance of the gas valve, connect one wire to the valve as shown. 0000001116 00000 n The Honeywell Home trademark is used under license from Honeywell International Inc. . 13. WARNINGFIRE OR EXPLOSION HAZARDS CAN CAUSE PROPERTY DAMAGE, SEVERE INJURY, OR DEATH. A contractor came by and gave it a crack at it and said it was the gas valve but I'm not confident that that could be the problem as from reading this post, the thermoCOUPLE should be swapped out first before assuming it is the gas valve as it is a more pricey unit to replace. When the gas control knob is manually turned to OFF. 0000068110 00000 n Lv 4. I go over how it is Wired, wha. If the inlet pressure is in the normal range (refer to Table 7 or 8), replace the existing gas control. 0000006973 00000 n 0000011066 00000 n For the VR4200, make sure the conduit cover is in position and secured to the gas valve with the screw provided. WHEN THE CALL FOR HEAT ENDSWhen the call for heat ends, the first automatic valve and the second automatic valve operator close, bypassing the regulator(s) and hutting ff the main burner. 0000002263 00000 n Order separately: pilot burner, thermocouple, transformer, limit controller, and thermostat or controller as required.
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