xref 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. 0000010874 00000 n Attempt to light pilot burner flame following procedures in the Light the Pilot Burner Flame section. SPECIFICATIONS Main Gas Connection: Valve: 3/8 in. Appliances that are used seasonally should be checked before shutdown and again before the next use. These controls combine a manual gas cock, automatic pilot safety valve and a millivolt operator. There should not be a flame-up there if the valve is working correctly. Millivolt systems have been the industry standard for decades, and are in some ways simpler to troubleshoot than electronic ignition systems. 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? By clicking Post Your Answer, you agree to our terms of service, privacy policy and cookie policy. 0000016980 00000 n Adjustable servo regulator effectively maintains almost constant gas output pressure under wide fluctuation in gas supply pressure. Ensure the installer is a trained, experienced service technician. https://www.trutechtools.com/?affid=43 Use our Promo Code: \"acservicetech\" for 8% off your order! Cycle the main burner several times, allowing at least 30 seconds between cycles for the regulator to resume the step function. 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. 0000015431 00000 n Set your voltmeter for the proper voltage that is, above 24 volts. It has been obsolete for over 30 yrs now. A1/{;_Fe o(*=`. We get it, but (1) terrylove.com can't live without ads, and (2) ad blockers can cause issues with videos and comments. One Q340A 36-inch thermocouple with adapters and clip. 0000057737 00000 n Before lighting, smell all around the appliance area for gas. 44 0 obj <>stream 394349 9/64 inch hex tool for flange assembly screws. Honeywell Gas Valves. For push-in clip-type pilot burners: From beneath, insert the tip of the Q340 into the hole or barrel of the pilot burner. Check your instruction manual to determine the voltage that should be running at your control valve circuit. The Honeywell Home trademark is used under license from Honeywell International Inc. . A stuck valve could release gas into the air without regulation or the valve could cause the unit not to fire up at all. Combination screw and quick-connect terminals on TRADELINE models. The pilot must be manually relit when normal burner operation is desired. Tighten the screws to 25 inch-pounds of torque to provide a gas-tight seal. To check for gas pipe leaks, put soap on the pipe connecting to the valve, if it bubbles, it means there's leakage. Paint all pipe connections upstream of the gas control with a rich soap and water solution. 0000008826 00000 n 0000031358 00000 n Please comment and ask for videos that you would like to see in the future! 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! Do not make sharp bends or deform the tubing. The gas control should e replaced if: It does not perform properly on checkout or troubleshooting. Your email address will not be published. The generator, heated by the pilot burner flame, pro- . 0000004324 00000 n Remove the pilot adjustment cover screw. 0000026083 00000 n I was trying to use the "MILLIVOLT TROUBLESHOOTING CHART", on page 2 of this . Water heater won't light? Several troubleshooting methods applied to and including bypassing the thermostat but failed to yield any results. If an adapter is used, place the wrench on the adapter rather than on gas control. 0000008225 00000 n '', New members: Adding your location to your profile helps in many ways.--M--, valves" thread in the HVAC forum, someone wanted to know how a gas valve worked. For the VR4200, make sure the conduit cover is in position and secured to the gas valve with the screw provided. 5. Supervision is needed by a licensed HVACR Tech while doing this as Experience and Apprenticeship garners Wisdom and Safety.Tool List- https://www.amazon.com/shop/acservicetechSupport- https://www.patreon.com/acservicetechWe've Partnered with TruTechTools.com! 0000026478 00000 n Jumping between the TP/TH and TH does NOT turn the main burner on. 0000023590 00000 n In this HVAC Furnace Video, I go over the Operation and Troubleshooting of a 750 Millivolt Gas Valve and Thermopile/PowerPile. See Accessories.CAPACITY: 130 feet 3 /hour [4.2 meters 3 /hour]. If you then smell gas in the appliance area or near the floor in an LP installation, immediately shut off the manual valve in the gas piping to the appliance or, with LP, shut off at the tank. This material is proprietary to Honeywell Limited and shall not be reproduced, copied or used in any manner without prior written consent of . Hold down the gas control knob about one minute, then release. The burner may relight at the full flow rate. 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. The main burner gas flow is blocked by both automatic valves. Prices are the same as normal- https://www.amazon.com/shop/acservicetech With the . Learn more about Stack Overflow the company, and our products. Refer to Startup and Checkout section. Do not remove seals until ready to connect piping.Follow the appliance manufacturer instructions if available; otherwise, use the instructions provided below. Allow the appliance to run through one complete cycle to ensure that the controls are functioning in the correct manner. 1/2 in. millivoltage automatic valve operator, and optional gas pressure regulator. 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. This may burn out the heat anticipator in the thermostat. Do not exceed the input rating stamped on the appliance nameplate or manufacturer-recommended burner orifice pressure for the size orifice(s) used. Replace the part if the gas leak cannot be stopped. Also, this product is tested and calibrated under closely controlled conditions, and some minor differences in performance can be expected if those conditions are changed. This is How to Wire the Thermopile to The 750mv Gas Valve for the Pilot and Main Gas Burners. Failure to do so may result in fire or explosion. This makes it ideal for fireplace and space heating uses that are vent free. If the O-ring is not attached or is missing, do not use the flange. The low-pressureregulator maintains outlet pressure at the preset step rate for several seconds. Apply a moderate amount of good quality pipe compound (Do not use Teflon tape) to pipe only, leaving two end threads bare. I would recommend replacing all the wiring and controls and the pilot generator. This may burn out the heat anticipator in the thermostat or damage the DI module.IMPORTANT: Allow 60 seconds after shutdown before reenergizing the step-opening model to assure light off at step pressure. 244 0 obj << /Linearized 1 /O 247 /H [ 2388 392 ] /L 541180 /E 139793 /N 4 /T 536181 >> endobj xref 244 91 0000000016 00000 n A place where magic is studied and practiced? Fig. Do I need a thermal expansion tank if I already have a pressure tank? A consequence of unexpected shutdown. Check the regulator setting either with a manometer or by clocking the gas meter. 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. 0000055329 00000 n TABLE 6MAXIMUM LENGTH OF SUPPLEMENTARY LIMIT LEADWIRES WHEN USING Q309A THERMOCOUPLE. You may have to wiggle it a bit before it comes loose. PERFORM GAS LEAK TEST WARNING!FIRE OR EXPLOSION HAZARDS CAN CAUSE PROPERTY DAMAGE, SEVERE INJURY, OR DEATH.Check for gas leaks with rich soap and water solution any time work is done on a gas control. Regulator Cap Conversion Screw Pressure Regulator Housing, Cleaning the Standing Pilot Control System. CONVERTING BETWEEN NATURAL AND LP GAS WARNING!FIRE OR EXPLOSION HAZARDS CAN CAUSE PROPERTY DAMAGE, SEVERE INJURY, OR DEATH. 0000013496 00000 n Remove the thermopile wiring connector from the gas control. This category contains Honeywell SmartValve, Gas Controls, Millivolts, Pressure Regulators, Gas Control Parts and Industrial Gas Valves. Do not use a gas control set for natural gas on an LP gas system or a gas control set for LP gas on a natural gas system. 0000012806 00000 n Water heater not working? 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. VR8200 for use with 24 Vac heating appliances and VR4200 for use with 120 Vac heating appliances that burn natural or liquefied petroleum (LP) gas. 4. pressure drop for straight-through configuration). Never use pipe compound. A normal reading will be in the range of 145 to 195 millivolts. 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. 0000062506 00000 n 0000002189 00000 n Force or attempted repair may result in fire or explosion. 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. 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. If the reset button does not pop up when released, stop immediately and call your service technician or gas supplier. I have an old millivolt gas furnace that's stopped working. They require the use of a 750 mv Powerpile generator (thermopile). This type of gas valve used a single thermocouple. In many such applications, particularly commercial cooking, the equipment operates 100,000-200,000 cycles per year. If you don't test, it's just a. Install the Q340A asfollows: Connect ThermocoupleConnect thermocouple lead as shown in Fig. TRADELINE kits include a 9/64 in. Zero clearance sleeve is only required for combustible walls. on Honeywell VR8200, VR4200 Combination Gas Controls User Guide, Honeywell Humidity Controllers User Guide, Honeywell S8910U Universal Hot Surface Ignition Module User Manual. Use only glass approved by Vermont Castings, Majestic Products on this fireplace. 0000060666 00000 n Do not secure conduit cover at this time. hbbd``b`~@q3` A@e:X 2 D !HWX m 40d# $ ? 0000060689 00000 n the robertshaw link gives max lengths vs. gauge. Is there a solution to add special characters from software and how to do it. endstream endobj startxref On LP gas installation, use compound resistant to LP gas. By creating an account you agree to the Hunker, How to Light the Pilot Light on a Honeywell VR8200. If the appliance uses LP (bottled) gas, be sure to smell next to the floor because LP gas is heavier than air. Asking for help, clarification, or responding to other answers. Is a PhD visitor considered as a visiting scholar? ECO connector included with some models: also available as an accessory. Test the voltage using an AC voltmeter. I show you how to Light the Pil. Leave the building and call your gas supplier. Troubleshooting the valve and looking for known common issues will give you peace of mind by ensuring the safe operation of your Honeywell appliance. Turn off the gas supply valve to your appliance to test whether your valve is capable of shutting down properly. 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. (50/60 Hz models available on request. Where the cost of an unexpected shutdown would be high, the system should be checked more ften. Install the new plastic pressure regulator adjustment screw so that the top of the screw is flush (level) with the top of the regulator. 13. If your gas supplier cannot be reached, call the fire department. to protect them and prevent gas from leaking, and discourage tampering by untrained people. This includes a WIRING DIAGRAM. 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. Good info, thanks! 0000139215 00000 n Tubing installation must comply with approved standards and practices. Outstanding! 0000003696 00000 n 2, 3 and 11, 12. hW[o8+ID:BZ(gENRCD'$( m;\{fgc3llFQl%|xI!>-88zzhb|AtJOr[b4-BFS! 0000026455 00000 n Furnace gas valves cannot be repaired. TABLE 7PRESSURE REGULATOR SPECIFICATION PRESSURES IN INCHES WC. Read these instructions carefully. The VR8200 Continuous Pilot Dual Automatic Valve Combination Gas Controls are used in gas-fired, standing pilot appliances. I have some pictures to help clarify what I have, a ThermoPILE system. I would verify the valve type - It would either be the SIT 820 or the Honeywell VS8420. 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. 0000001116 00000 n 0000005748 00000 n Never use any tools. MILLIVOLT SYSTEMS Millivolt systems provide their own power, so do not require outside battery power or line voltage to operate. Is it correct to use "the" before "materials used in making buildings are"? Your problem seems to involve large -- really large -- "industrial size" issues. Install thermostat, and other controls as required. When you purchase through links on our site, we may earn an affiliate commission, which supports our community. Good Reading Bad Reading 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. Set thermostat to the desired temperature. Some considerations are: Cycling frequency. 0000003816 00000 n So, to diagnose a gas valve, first check to see if the pilot light is on. 0000002167 00000 n 0000028639 00000 n If the appliance is a hot water heater but it's not firing up, the thermopile might be weak. 14 when the: The power unit holds the safety shutoff valve disc off its seat, so gas can flow into the control. It must measure at least 19.5VAC with the igniter powered. 0000028590 00000 n 400 millivolts across the generator loadedcurrent flowing through the switches and valvesis about right. Use only your hand to push down the reset button or turn the gas control knob. Regulator adjustment is accessible from top of gas control.MOUNTING: Can be mounted 0 to 90 degrees in any direction from the upright position of the gas control knob, including vertically.TEMPERATURE RATING:VR8200A,C,H,J; VR4200A,C,H: 0 F to +175 F [-18 C to +79 C].VR8200M,P; VR4200M,P: -40 F to +175 F [-40 C to +79 C]. Stack Exchange network consists of 181 Q&A communities including Stack Overflow, the largest, most trusted online community for developers to learn, share their knowledge, and build their careers. Install control and appliance according to appliance manufacturer instructions. 0000003838 00000 n Natural to LP gas conversion kit included with TRADELINE standard and slow-opening models. Draw yourself the circuit. 0000016758 00000 n Fig. Mount the gas control 0-90 degrees, in any direction, from the upright position of the gas control knob, including vertically. Such heavy cycling wears out the gas control in one to two years. ADJUST THE PILOT BURNER FLAMEThe pilot flame should envelop 3/8 to 1/2 in. 0000006677 00000 n TO LIGHT THE PILOT BURNERSTOP! 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. TABLE 5MAXIMUM LENGTH OF SUPPLEMENTARY LIMIT LEAD WIRES WHEN USING Q340A THERMOCOUPLE. Only the gas valve manufacturer or someone certified by the manufacturer of the gas valve can make repairs. 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. 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. Mount gas control high enough above cabinet bottom to avoid exposure to flooding or splashing water. Connect the other end of the tubing to the pilot burner according to pilot burner manufacturer instructions. WHEN THE THERMOSTAT CALLS FOR HEATThe gas control allows pilot and main burner gas flow during the thermostat ON cycle, as shown in Fig. 0000013473 00000 n The condition of the wiring is also suspect; loose connections, old oxidized control contacts, an old thermostat, are all potential problems. (supposedly so they could fix them :yes: ), Cool. You can test the rest of the system by temporarily replacing the generator with a 1.5 volt standard flashlight battery. By clicking Accept all cookies, you agree Stack Exchange can store cookies on your device and disclose information in accordance with our Cookie Policy. . 0000055306 00000 n 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. 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. wc [0 kPa] to rated output pressure within 3-6 seconds (for an 80,000 Btuh furnace at 7 in. LP to natural gas conversion kit available for standard and slow-opening models. For the VR4200, when the gas control is installed external to the appliance, install the conduit cover on the conduit fitting. %PDF-1.5 % If the red reset button stays depressed after it is released, replace the gas control. Minimum regulated capacity is 20 feet 3 /hour [0.6 meters 3 /hour]. the manual gas control knob is in the ON position. Square off and remove burrs from the end of the tubing. If the voltage is dead or not as rated, replace the valve. While taking a Millivolt reading on a safety magnet, disconnect thermocouple & wires from the valve. See Fig. The boiler comes on twice a day - morning and night. Jimbo, Thanks for that tip. 0000049228 00000 n Never use any tools. Do not thread pipe too far. If any particular ad is your REASON for blocking ads, please let us know. Capacity rated at 130 feet 3 /hour at 1-inch WC pressure drop [3.7 m 3 /hr at 0.25 kPa]. 6. Free shipping for many products! Your local Honeywell Residential and Building Controls Sales Office (check white pages of your phone directory). 0000011836 00000 n Safety shutoff or pilot gas proves complete shutdown since the safety shutoff valve permits main burner and pilot gas flow. Why isn't the spark gap lighting the pilot on my furnace? A bad gas valve in a Honeywell appliance such as a water heater or furnace that is powered by natural gas can go bad and affect the performance of the unit. With the main burner operating, check the gas control flow rate using the meter clocking method or check the gas pressure using a manometer connected to the gas control outlet pressure tap. Here are a couple pictures of the valve: Since this question was asked 1 year ago, I have to assume you have solved the problem. See Figs. When purchasing replacement and modernization products from your TRADELINE wholesaler or your distributor, refer to the price sheets for complete ordering number, or specify. 0000036872 00000 n We come out with new videos every few days from my job sites, service calls, and the training shop! CONVENIENCE TERMINALS SERVE AS A TIE POINT ONLY. At least having yours done professionally would appear to put you in a position of a tax deduction for repairing it. Maintenance frequency must be determined individually for each application. It looks like you're using an ad blocker. %PDF-1.3 % Otherwise, take the necessary steps to provide proper gas pressure to the gas control. Pilot gas flows through a port in the ushing around the reset button shaft to the pilot burner. . I think I've had a service call on every millivolt system in my rentals.----I am debugging a Monessen millivolt gas valve. Choose the appropriate flange for your application. So in short, I get heat both times of the day for say an hour and it just sits idle with the pilot lit. 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. 250 items. Insert bushing in gas control and thread pipe carefully into bushing until tight. I'm wondering though if 750 mv is for all thermopiles..even my old one dating back to about the mid 50s??? Any adjustments to gas control equipment should be checked using combustion efficiency test equipment by trained technicians. If a gas leak is detected, tighten the pipe connection. Kit for conversion from LP to natural gas is available for standard and slow opening models. As with the millivolt system, you'll be testing a series of components to locate the faulty part. Home Honeywell Honeywell VR8200, VR4200 Combination Gas Controls User Guide. Good reading is 0 to 0.2 Ohms . 4 0 obj <> endobj If the regulator cannot be adjusted and supply pressure is in the normal range, replace the gas control. Did this satellite streak past the Hubble Space Telescope so close that it was out of focus? Release button; the pilot should remain lit. 0000023567 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. Push tubing into the pilot gas tapping on the outlet end of the control until it bottoms. Connect and share knowledge within a single location that is structured and easy to search. This diverts gas flow from the automatic valve diaphragm and causes a reduction of pressure on the underside of this diaphragm. Then tighten one more turn with a wrench. See Fig. Push and hold down the red reset button (Figs. Refer to Fig. Check the power supply rating on the valve and make sure it matches the available supply. Disconnect power supply before wiring to prevent electrical shock or equipment damage. 54), whichever applies. 0000018745 00000 n Why Do the Burners Work but the Oven Does Not Work on My Gas Stove. http://www.robertshawtstats.com/spaw2/SiteContent/Files/faq/ControlTips-MillivoltSystems.pdf, http://en.wikipedia.org/wiki/American_wire_gauge, http://americanhvacparts.com/Merchantegory_Code=GV, http://americanhvacparts.com/Merchant2/merchant.mvc?Screen=PROD&Product_Code=GSV820A1047A&Category_Code=GV, http://en.wikipedia.org/wiki/Node_(circuits, http://www.emersonclimate.com/en-US/products/valves/Documents/0037-6264.pdf. Remove seals over gas control inlet and outlet if necessary. 0000005616 00000 n The small valve seat attached to the reset button closes and shuts off the pilot gas flow. 0000039900 00000 n hb``Pc`` _Ps400! The rod, which should be cleaned annually, by the way, will heat up and send a millivolt signal down to its ceramic base and on to the control board. Apply a moderate amount of good quality pipe compound to bushing, leaving two end threads bare. 0000006973 00000 n If outlet pressure begins to fall, the pressure regulator diaphragm moves slightly lower allowing ore to flow to the gas control outlet. If pilot burner flame still goes out, measure the open and closed thermocouple output voltage. . Slip the compression fitting over the tubing and slide out of the way. I go over how it is Wired, wha. The best answers are voted up and rise to the top, Not the answer you're looking for? Outlet pressure to the main burner increases gradually from 0 in. 0000068110 00000 n This shuts off the pilot and main burner gas flow. Turn off the main gas supply to the appliance. In this HVAC Furnace Video, I go over the Operation and Troubleshooting of a 750 Millivolt Gas Valve and Thermopile/PowerPile. Resistance between THTP & TP must be 10.0 W 0.2 W Gas control operation is described in more detail below.VALVE POSITION DURING THERMOSTAT OFFCYCLEThe valve is positioned as shown in Fig. Troubleshooting an IID control system calls for an AC voltmeter with a 220-volt range or greater. When the pilot goes out or becomes too small to sustain normal ignition. 0000044905 00000 n 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. SUPER TRADELINE MODELSSUPER TRADELINE controls offer features not avail- able on TRADELINE or standard models, and are designed to replace a wide range of Honeywell and competitive controls.SUPER TRADELINE model specifications are the same as those of standard models except as noted below.SUPER TRADELINE MODEL AVAILABLE: VR8200A Continuous Pilot Dual Automatic Combination Gas Control. 0000002388 00000 n Assure the gas control knob is in the ON position. Troubleshooting the valve and looking for known common issues will give you peace of mind by ensuring the safe operation of your Honeywell appliance. To adjust the pilot flame: LIGHT MAIN BURNERFollow the appliance manufacturer instructions or set the thermostat setting above room temperature to call for heat. 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. 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. trailer << /Size 335 /Info 243 0 R /Encrypt 246 0 R /Root 245 0 R /Prev 536170 /ID[] >> startxref 0 %%EOF 245 0 obj << /Type /Catalog /Pages 242 0 R >> endobj 246 0 obj << /Filter /Standard /R 2 /O (__LD98yc0\r!) /U (\rUob!Yd2U/>6q6) /P -44 /V 1 >> endobj 333 0 obj << /S 97 /Filter /FlateDecode /Length 334 0 R >> stream Push in firmly to lock in place. CAUTION!Do not apply a jumper across or short the valve coil terminals. When the thermostat calls for eat, the first automatic valve and the second automatic valve operator are energized.