honeywell millivolt gas valve troubleshooting
By clicking Post Your Answer, you agree to our terms of service, privacy policy and cookie policy. 0000002201 00000 n Mount the gas control so gas flow is in the direction of the arrow on the bottom of the gas control. 0000139215 00000 n Thus the flow of gas through the second automatic valve is reduced, and outlet pressure falls to the desired level. A normal reading will be in the range of 145 to 195 millivolts. Locate the hot surface igniter and look for a spark or glow there. By creating an account you agree to the Hunker, How to Light the Pilot Light on a Honeywell VR8200. 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! After the adapter is installed, the gas control is attached to the adapter as outlined above. If the reading is higher,magnet is defective therefore Change the Valve - Do not try to repair. CHECK AND ADJUST GAS INPUT TO THE MAIN BURNER, Standard-Opening and Slow-Opening Pressure Regulator, Step-Opening Pressure Regulator and Delayed and Step-Opening Pressure Regulator. wc [0.9 kPa] outlet pressure). 0000044882 00000 n Seems my new millvolt gas valve turns off PILOT and MAIN BURNERS. I was trying to use the "MILLIVOLT TROUBLESHOOTING CHART", on page 2 of this . The maximum regulated capacity is 200 feet 3 /hour [5.7 meters 3 /hour]. Turn off the main gas supply to the appliance. 2. Outstanding! Why are physically impossible and logically impossible concepts considered separate in terms of probability? For the VR4200, make sure the conduit cover is in position and secured to the gas valve with the screw provided. The low-pressureregulator maintains outlet pressure at the preset step rate for several seconds. Capacity is based on 1000 Btu/feet 3, 0.64 specific gravity natural gas at 1-inch water column pressure drop [37.3 MJ/meters 3, 0.64 specific gravity natural gas at 0.25 kPa pressure drop].The maximum regulated capacity is 200 feet 3 /hour [5.7 meters 3 /hour]. See Fig. Good Reading Bad Reading Otherwise, take the necessary steps to provide proper gas pressure to the gas control. The gas valve part numbe read more Do not force the gas control knob on the appliance. The three-position manual gas control knob has ON, OFF, and PILOT positions. Taps are 1/8 inch NPT with a plug containing recess for 3/16 inch Allen wrench.PRESSURE RATING: A.G.A. The main burner gas flow is blocked by both automatic valves. 0000023014 00000 n Ensure the main burner lights smoothly and without a flashback to the orifice and that all ports remain lit. A separate reset button must be held down to permit gas flow while lighting the pilot; can be pushed down only in the PILOT position. %PDF-1.5 % If you'd like to support the site, please allow ads. Install ThermocoupleThe Q340A Thermocouple (with adapters) is provided with SUPER TRADELINE models of the VR8200A. In this HVAC Furnace Video, I go over the Operation and Troubleshooting of a 750 Millivolt Gas Valve and Thermopile/PowerPile. 0000041780 00000 n (See Fig. VR8200 for use with 24 Vac heating appliances and VR4200 for use with 120 . 0000052168 00000 n PRESSURE TAPPING: Inlet and outlet pressure taps accessible from the top of gas control. Filter. 0000018745 00000 n This type of gas valve used a single thermocouple. Bashing my head against the walls in some of the internet's finest chat rooms. If the voltage is dead or not as rated, replace the valve. hex wrench, as noted.PILOT GAS OUTLET: Compression fitting for 1/4 in. 6 terminals + 2 jumpers = 4 effective terminals = 4 nodes. I have a Superior Gas Fireplace model DR-500CMP that currently has a Honeywell Millivolt Gas Valve that I need to replace but the part number does not cross to a valid number. Your system is quite old and somewhat unsafe, in that the pilot comes off ahead of the safety valve. These Videos are all part of our Training Series on HVACR Service, Installation, Preventative Maintenance, General Knowledge, and Tips. 12Wiring connections for 120-volt control. 0000031335 00000 n Except for the 123 mV this circuit is pretty well obvious. There must be two terminals in this connector block that powers the gas valve coil. 0000023590 00000 n I'm looking for help identifying what model it actually is (so I can search for information specific to it) or ideas on what might be wrong. 0000003838 00000 n If the appliance is a hot water heater but it's not firing up, the thermopile might be weak. For push-in clip-type pilot burners: From beneath, insert the tip of the Q340 into the hole or barrel of the pilot burner. %%EOF Attempt to light pilot burner flame following procedures in the Light the Pilot Burner Flame section. Models for natural or LPgas.ADDITIONAL FEATURES: STANDARD MODELSMODEL: VR8200 and VR4200 Continuous Pilot Dual Automatic Valve Combination Gas Controls. If desired outlet pressure or flow rate cannot be achieved by adjusting the gas control, check the inlet pressure using a manometer at the inlet pressure tap or upstream of the gas control. JavaScript is disabled. When the pilot goes out or becomes too small to sustain normal ignition. In replacement applications, locate the gas control in the same location as the old gas control. Proper gas valve adjustment can save your home from a devastating fire. It must be replaced in case of any physical damage such as bent terminals, missing or broken parts, stripped threads, or evidence of exposure to heat. If you have not I will give some ideas. Tighten the screws to 25 inch-pounds of torque to provide a gas-tight seal. inlet and 1/2 inch outlet; adapters available for 3/8 or 3/4 inch. 0000041802 00000 n Set thermostat to the desired temperature. It does so for the very first instance both in the morning and night but thereafter, the pilot just stays lit and the chambers aren't lit or heating the house. Straight-through body pattern; right-angle adapters available for inlet and outlet. What you are experiencing is why such adjustments are discouraged! 0000066914 00000 n Check fireplace to make sure it is levelled and properly positioned. 0000049228 00000 n The main burner should go off and the pilot should remain lit. 0000028628 00000 n Refer to Table 7 or 8 for factory-set nominaloutlet pressures and adjustment ranges. Some considerations are: Cycling frequency. Exposure to water, dirt, chemicals, and heat can damage the gas control and shut down the control system. To adjust the pilot flame: LIGHT MAIN BURNERFollow the appliance manufacturer instructions or set the thermostat setting above room temperature to call for heat. 0000013040 00000 n Combination screw and quick-connect terminals on TRADELINE models. Check the transformer. 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. CONVERTING BETWEEN NATURAL AND LP GAS WARNING!FIRE OR EXPLOSION HAZARDS CAN CAUSE PROPERTY DAMAGE, SEVERE INJURY, OR DEATH. Use a wrench on the square ends of the gas control. In the "Resources for understanding gas valves" thread in the HVAC forum, someone wanted to know how a gas valve worked. 0000011836 00000 n I have some pictures to help clarify what I have, a ThermoPILE system. Never use any tools. Cover gas control if the appliance is cleaned with water, steam, or chemicals to avoid dust and grease accumulation. The Fora platform includes forum software by XenForo. When Pilot Flame Goes OutWhen the pilot flame goes out or is too small to reliably light the main burner, thermocouple output drops below the power unit hold-in valve. Attempted disassembly or repair may damage the gas control. Required fields are marked *. trailer Then tighten one more turn with a wrench. When purchasing replacement and modernization products from your TRADELINE wholesaler or your distributor, refer to the price sheets for complete ordering number, or specify. And after two or so minutes, the gas chambers will be lit. I searched for that gas valve, and found this one as the replacement: I would seriously consider what Jimbo said, but, yes, if you bypass the t'stat and the limit switch with jumper wires and the pilot is on, the valve should open if the schematic is what I think it is. Turn the gas control knob counterclockwise. EASY FIXES! This is How to Wire the Thermopile to The 750mv Gas Valve for the Pilot and Main Gas Burners. I was just wondering about this the other day. 0000002263 00000 n VR8200J has a six-second delay from when the thermostat calls for heat until the main gas valve opens. Any help and/or comment would be greatly appreciated. Standard-, slow- and step-opening models available. I have an old millivolt gas furnace that's stopped working. TABLE 7PRESSURE REGULATOR SPECIFICATION PRESSURES IN INCHES WC. One Q340A 36-inch thermocouple with adapters and clip. IMPORTANT: These gas controls are shipped with protective seals over inlet and outlet tappings. Water heater not working? 10Installing thermocouple to the power unit. I go over how it is Wired, wha. You must log in or register to reply here. When the pilot remains lit, turn the gas control knob counterclockwise. If something is wrong with the internal components of the gas valve, the gas valve should be replaced. 2). on Honeywell VR8200, VR4200 Combination Gas Controls User Guide, Honeywell Humidity Controllers User Guide, Honeywell S8910U Universal Hot Surface Ignition Module User Manual. Come join the discussion about tools, projects, builds, styles, scales, reviews, accessories, classifieds, and more! 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. Water heater won't light? Step-Opening Pressure Regulation (VR8200C,P andVR4200P)Step-opening gas controls actually combine two pressure regulators, one for the low pressure and one for the full-rate pressure. Check the power supply rating on the valve and make sure it matches the available supply. Some tips regarding the Honeywell Millivolt valve: Always ensure the switch is in the off position when lighting the pilot. Outlet pressure to the main burner increases gradually from 0 in. You are using an out of date browser. Slip the compression fitting over the tubing and slide out of the way. Browse other questions tagged, Start here for a quick overview of the site, Detailed answers to any questions you might have, Discuss the workings and policies of this site. And, it was very cost competitive to other non-Honeywell thermopiles. For use in standing pilot appliances. If above 11 ohms, replace the gas control. For screen reader problems with this website, please call 1-800-430 . Place one meter lead to soldered point on back of valve and one to ground. Do not remove seals until ready to connect piping.Follow the appliance manufacturer instructions if available; otherwise, use the instructions provided below. Open the manual gas switch if the gas valve fails to operate and look to see if gas is flowing to the main burner or pilot. Remove the thermopile wiring connector from the gas control. Because gas is involved, problems with gas valves are a major safety concern. 0000016504 00000 n Home Honeywell Honeywell VR8200, VR4200 Combination Gas Controls User Guide. Order number, SUPER TRADELINE or TRADELINE if desired. Regulator Cap Conversion Screw Pressure Regulator Housing, Cleaning the Standing Pilot Control System. It may not display this or other websites correctly. 2 or 3. Read the safety information in the WARNING.This appliance has a pilot burner, which must be lit by hand. Check your instruction manual to determine the voltage that should be running at your control valve circuit. Both should be under cap screws. I'm wondering though if 750 mv is for all thermopiles..even my old one dating back to about the mid 50s??? 4 0 obj <> endobj MILLIVOLT SYSTEMS Millivolt systems provide their own power, so do not require outside battery power or line voltage to operate. Cycle the main burner several times, allowing at least 30 seconds between cycles for the regulator to resume the step function. Your local Honeywell Residential and Building Controls Sales Office (check white pages of your phone directory). ECO connector included with some models: also available as an accessory. If it then "clicks" meaning it is opening with voltage supplied to it than most likely it's not the gas valve which is bad. Do not thread pipe too far. Connect control circuit to gas control terminals. 2, 3 and 11, 12. To ensure proper operation, follow these guidelines: Locate the gas control in the appliance vestibule on the gas manifold. Helping You to Do It Yourself! Pilot gas flows through a port in the ushing around the reset button shaft to the pilot burner. Set the thermostat to the lowest setting and shut off the electric power to the appliance. cut tubing to the desired length and bend as necessary for routing to pilot burner. Resistance between the THTP & TH terminals must be 11.5 W0.2 W 2. Installation of Logs and Lava Rock Material. The diaphragm-operated second automatic valve opens under the control of the regulator and closes if gas or power supply is interrupted. 5. If you do not smell gas, turn the knob on gas control counterclockwise. Release button; the pilot should remain lit. Is there a solution to add special characters from software and how to do it. If outlet pressure begins to fall, the pressure regulator diaphragm moves slightly lower allowing ore to flow to the gas control outlet. (supposedly so they could fix them :yes: ), Cool. Combination 1/4 inch quick-connect and screw terminals (includes convenience terminals). When the thermostat calls for heat, the automatic operator valve disc opens. %PDF-1.3 % The reduced pressure on the bottom of the automatic valve diaphragm repositions the diaphragm downward away from the valve seat, allowing main burner gas flow. Adjustable servo regulator effectively maintains almost constant gas output pressure under wide fluctuation in gas supply pressure. Solenoid-operated first automatic valve opens on thermostat call for heat and closes when the call for heat ends. 0000126162 00000 n The VS8421 Millivolt Gas Valve has a 60,000 Btuh capacity (1 in. This behaviour is consistent with what I have seen/heard when the Honeywell valves begin to fail. The adapter is installed on the end of the supply pipe in place of the gas control, following the same precautions and instructions that are used for installing the gas control. 0000098813 00000 n %PDF-1.3 % SPECIFICATIONS Main Gas Connection: Valve: 3/8 in. 0000011989 00000 n 0000008826 00000 n And we already know that the t'stat + terminal is jumpered to the t'couple + terminal, and that the t'stat - terminal is jumpered to the limit switch + terminal. 0000002119 00000 n thatguy, I hear you. It is no longer manufactured Pressure Switch Installation Addendum, Gas Detection Quick Reference GuideHoneywell BW Solo Portable Single gas Detector 2020, Oct 23 G05-4001-000-RevC Overview Contact, RYOBI RY802925 PSI Gas Pressure Washer WARNING: This Quick Reference Guide is not a substitute for reading the, KitchenAid Gas Range User Manual - Optimized PDF KitchenAid Gas Range User Manual - Original PDF, Your email address will not be published. The electrical/scientific basis for millivolt systems is the Seebeck Replace the thermocouple if voltages are outside the acceptable range. By clicking Accept all cookies, you agree Stack Exchange can store cookies on your device and disclose information in accordance with our Cookie Policy. Do not force the gas control knob. Replace the part if the gas leak cannot be stopped. Is it possible to rotate a window 90 degrees if it has the same length and width? 0000011066 00000 n 0000004324 00000 n The screw to adjust the pilot gas is a needle valve. If your gas supplier cannot be reached, call the fire department. If it is re-energized within 60 seconds, it may bypass or shorten the length of the low-pressure step. Any adjustments to gas control equipment should be checked using combustion efficiency test equipment by trained technicians. THIS SHORTS VALVE COIL AND MAY BURN OUT THE ANTICIPATOR IN THE THERMOSTAT. Readjust the full rate outlet pressure if necessary to improve light off characteristics. Intermittent use. Tech Guru. The pilot will remain lit, ready for return to normal service without relighting.COMPLETE SHUTDOWN: Turn the gas control knob clockwise to OFF. https://www.trutechtools.com/?affid=43 Use our Promo Code: \"acservicetech\" for 8% off your order! 0000002780 00000 n You can test the rest of the system by temporarily replacing the generator with a 1.5 volt standard flashlight battery. . Below are my tests: Rear V ented Direct V ent Gas Fireplace Model: PLEASE READ THE INSTALLATION & OPERATING INSTRUCTIONS BEFORE USING THE APPLIANCE. Insert and tighten the screws provided with the flange. 6. 394349 9/64 inch hex tool for flange assembly screws. 0000009803 00000 n Free shipping for many products! Otherwise, take the necessary steps to provide proper gas pressure to the gas control. Apply a moderate amount of good quality pipe compound (Do not use Teflon tape) to pipe only, leaving two end threads bare. Locate gas control in a well-ventilated area. 0000012919 00000 n Zero clearance sleeve is only required for combustible walls. I would verify the valve type - It would either be the SIT 820 or the Honeywell VS8420. The second automatic valve diaphragm, controlled by the servo pressure regulator, opens and adjusts gas flow as long as the system is powered and the pilot is burning. See Fig. Good info, thanks! Wait five minutes to allow any gas in the combustion chamber to vent. 0000052145 00000 n Ensure the ambient temperature does not exceed the ambient temperature ratings for each component. Before lighting, smell all around the appliance area for gas. If you have additional questions, need further information, or would like to comment on our products or services, please write or phone: BODY PATTERN: Straight-through with 1/2 inch inlet and 1/2 inch outlet. INSTRUCTIONS TO THE HOMEOWNER FOR YOUR SAFETY, READ BEFORE OPERATING WARNING!IF YOU DO NOT FOLLOW THE WARNINGS BELOW AND THE LIGHTING INSTRUCTIONS EXACTLY, A FIRE OR EXPLOSION CAN RESULT WITH PROPERTY DAMAGE, PERSONAL INJURY OR LOSS OF LIFE. The next time the valve fails to open you need to measure the voltage across this valve coil, or, better, the current through it.. What gauge number wire and what length do you use to your t'stat? 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. Light the main burner. If necessary, adjust the pressure regulator to match the appliance rating. Is a PhD visitor considered as a visiting scholar? In many such applications, particularly commercial cooking, the equipment operates 100,000-200,000 cycles per year. 10 0 obj <> endobj Compare it to the acceptable range charts in the thermocouple specifications or in the Gas Controls Handbook. The condition of the wiring is also suspect; loose connections, old oxidized control contacts, an old thermostat, are all potential problems. If it isn't flowing, replace the SmartValve. Also found in certain gas space heaters and construction-site portable heaters. 0000012011 00000 n DO NOT JUMPER THESE TERMINALS. Repeat after allowing the main burner to cool. . 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. I suspect they are the "white" terminal and TH1. 2 or 3) while you light the pilot burner. 0000068110 00000 n When making the conversion, the main pilot burner orifices must be changed to meet the appliance manufacturer specifications. Combination 1/4 inch quick-connect and screw terminals (includes convenience terminals), One 3/4 inch straight flange assembly (with O-ring and screws). 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. Safety shutoff or pilot gas proves complete shutdown since the safety shutoff valve permits main burner and pilot gas flow. 0000011088 00000 n See Table 1 for model specifications.SUPPLY VOLTAGE:VR4200: 120 Vac, 60 Hz.VR8200: 24 Vac, 60 Hz. If tubing is used, obtain a tube-to-pipe coupling to connect the tubing to the gas control. This is a very useful thread and am learning a lot from it partly because of my situation with my current Weil McClain boiler. 0000002189 00000 n Leave the building and call your gas supplier. Thermopile readings: With all wires connected, with the pilot on and burners off, the thermopile reading at the TP & THTP terminals should be ~325mV. 54), whichever applies. If any particular ad is your REASON for blocking ads, please let us know. This material is proprietary to Honeywell Limited and shall not be reproduced, copied or used in any manner without prior written consent of . Learn more about Stack Overflow the company, and our products. Appliances that are used seasonally should be checked before shutdown and again before the next use. 0000060689 00000 n If tubing is used, ensure the ends are square, deburred and clean. IF THE MAIN BURNER IS OVERFIRINGAdjust the gas control pressure regulator to the correct pressure. 0000011045 00000 n Vermont Castings, Majestic Products: DVR33, Window Frame Assembly Should be Removed Before Service Work, Troubleshooting Honeywell Millivolt Valve, Homeowner's Installation and Operating Manual. Install Piping to Gas ControlAll piping must comply with local codes and ordinances or with the National Fuel Gas Code (ANSI Z223.1 NFPA No. the robertshaw link gives max lengths vs. gauge. The gas valve ( which came over with Christopher Columbus :laughing is finally seizing up/kaput. White-Rodgers, Honeywell, and other valves makers will usually have it pre-set to that 3.5 wc, some installers forget . 0000003696 00000 n Your email address will not be published. The small valve seat attached to the reset button closes and shuts off the pilot gas flow. . 0000005616 00000 n The first automatic valve opens, and the second automatic valve operator valve disc is lifted off its seal. 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. While holding tubing all the way in, slide compression fitting into place and engage threadsturn until finger tight. Use conversion factors in Table 2 to convert to capacities for other gases. I show you how to Light the Pil. Site design / logo 2023 Stack Exchange Inc; user contributions licensed under CC BY-SA. Oa$2vlmmpTx{>z)~pc|N*ona0 Appliances that may cycle 120,000 times annually should be checked monthly. The first automatic valve is closed. Then the regulator valve is forced fully open by the timing diaphragm, which is operated by bleed gas. The VR8200 Continuous Pilot Dual Automatic Valve Combination Gas Controls are used in gas-fired, standing pilot appliances. 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. Usually this problem can be resolved by using an adapter. 0000003373 00000 n Wiring terminal block color-coded beige to identify standing pilot models. LP to natural gas conversion kit available for standard and slow-opening models. You should NOT short out the t'stat terminals to check it. So, to diagnose a gas valve, first check to see if the pilot light is on. Category: HVAC. pressure drop for straight-through configuration). 0000015431 00000 n We might be able to do something about it. 0000003485 00000 n 0000027628 00000 n Maintenance frequency must be determined individually for each application. 0000026455 00000 n Euler: A baby on his lap, a cat on his back thats how he wrote his immortal works (origin?). Run pipe or tubing to the gas control. VerticalScope Inc., 111 Peter Street, Suite 600, Toronto, Ontario, M5V 2H1, Canada. wc [1.8 kPa] inlet pressure and 3.5 in. If the switches are good, that sort of defaults to a bad gas valve. This valve is only for vent free applications. 0000072676 00000 n Check if gas is flowing if you turn on the gas and the pilot burner doesn't light. https://www.trutechtools.com/?affid=43 Use our Promo Code: \"acservicetech\" for 8% off your order! 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. Turn the pressure regulator adjustment screw clockwise. Your problem seems to involve large -- really large -- "industrial size" issues. 0000062529 00000 n All adjustments, wiring connections, and pilot outlets are accessible from the top of the gas control. Good reading is 0 to 0.2 Ohms . The pilot light is auto so when the thermostat calls for heat, a spark is sent to the ignition lighting up the pilot. Readings outside this range indicate the gas valve is defective and must be replaced. With O-ring facing the gas control, align the screw holes on the gas control with the holes in the flange. So in short, I get heat both times of the day for say an hour and it just sits idle with the pilot lit. Gas valves nowadays are one piece with 100% shutoff for the pilot flame gas and shutoff valve etc all in one valve. 0000001836 00000 n - Reg. Mount the gas control 0-90 degrees, in any direction, from the upright position of the gas control knob, including vertically. Contact your Honeywell sales representative to request a gas valve with corrosion-resistant construction. Refer to Figs. 0000098789 00000 n first the 360 millivolts you show should have been 750 to 800 millivolts since this is a pilot generator. Install sediment trap in the supply line to the gas control. 0000060666 00000 n If the pilot flame goes out, turn the gas control knob clockwise, If the pilot flame remains lit, turn the gas control knob counterclockwise. Home Improvement Stack Exchange is a question and answer site for contractors and serious DIYers. Do not overtighten. The PILOT position allows pilot burner gas flow only. If the inlet pressure is in the normal range (refer to Table 7 or 8), replace the gas control. Gas valves are not serviceable; the following are simple troubleshooting and description of how gas valves operate. 0000008848 00000 n Thanks. This is an electrical connection and must be clean and dry. Set your thermostat to under the room's current temperature and let at least one minute pass to allow the appliance to attempt to get fuel. As the pressure inside the gas control and underneath the automatic valve diaphragm equalizes, spring pressure closes the second automatic valve to provide a second barrier to gas flow. Determine if the pilot burner requires a thermocouple with a push-in clip or attachment nut, and attach the correct adapter to the. Because gas is involved, problems with gas valves are a major safety concern. Check the pilot burner flame adjustment. 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. 1/4-inch male quick-connect terminals for electrical connections. 0000034533 00000 n As for the gas valve it is probably a "general controls" valve but any 800 millivolt gas valve can be used as a replacement. The gas valve cannot be repaired in the field. Please comment and ask for videos that you would like to see in the future! Where these instructions differ from the appliance manufacturer, follow the appliance manufacturer instructions.All wiring including 1/4 in. The Thermopile, energized by the pilot flame, generates sufficient power to operate the gas valve and on/off switch. Connect the pipe to gas control inlet and outlet. I'll show you how to troubleshoot and diagnose the problem with your water heater and Honeywell gas val. endstream endobj startxref Minimum regulated capacity is 20 feet 3 /hour [0.6 meters 3 /hour]. Bubbles indicate a gas leak. Identify/troubleshoot this millivolt furnace valve, We've added a "Necessary cookies only" option to the cookie consent popup. I forgot to mention that I got the main burner to light on 2 occassions by tapping on either the gas pipe before the main shutoff valve, or on the honeywell gas millivolt valve itself. These controls combine a manual gas cock, automatic pilot safety valve and a millivolt operator. 0000000016 00000 n The power unit drops out, closing the safety valve and stopping all gas flow through the control.With the loss of outlet pressure, the second automatic valve closes and is held closed by spring pressure on the diaphragm. Apply a moderate amount of good quality pipe compound to bushing, leaving two end threads bare. If the gas control knob or reset button will not operate by hand, the gas control should be replaced by a qualified service technician. Thanks. It only takes a minute to sign up. The gas control is likely to have operated for more than 200,000 cycles. Do not exceed the input rating stamped on the appliance nameplate or manufacturer-recommended burner orifice pressure for the size orifice(s) used. It looks like you're using an ad blocker.