thatguy, I hear you. 0000036872 00000 n By clicking Accept all cookies, you agree Stack Exchange can store cookies on your device and disclose information in accordance with our Cookie Policy. 0000023456 00000 n Fig. If you smell gas, immediately shut off the manual valve in the gas piping to the appliance or, on LP, at the tank. One Q340A 36-inch thermocouple with adapters and clip. Category: HVAC. 0000060689 00000 n 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! Tech Guru. The diaphragm-operated second automatic valve opens under the control of the regulator and closes if gas or power supply is interrupted. (50/60 Hz models available on request. I'll show you how to troubleshoot and diagnose the problem with your water heater and Honeywell gas val. Order number, SUPER TRADELINE or TRADELINE if desired. Appliances that are used seasonally should be checked before shutdown and again before the next use. 1. Do not bend tubing at gas control or pilot burner after compression fitting has been tightened, as this may result in a gas leakage at the connection. Do not overtighten. 0000001836 00000 n Step 8. 54), whichever applies. Use a wrench on the square ends of the gas control. Do not make sharp bends or deform the tubing. If the desired outlet gas pressure or gas flow rate cannot be achieved by adjusting the gas control, check the gas control inlet pressure using a manometer at the inlet pressure tap. hbbd``b`~@q3` A@e:X 2 D !HWX m 40d# $ ? 0000007638 00000 n 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. 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. This material is proprietary to Honeywell Limited and shall not be reproduced, copied or used in any manner without prior written consent of . 9. 0000003838 00000 n It may not display this or other websites correctly. Otherwise, take the necessary steps to provide proper gas pressure to the gas control. The minimumregulated capacity is 40 feet 3 /hour for propane. VR8200 for use with 24 Vac heating appliances and VR4200 for use with 120 . 6. Outlet pressure to the main burner increases gradually from 0 in. Using Kolmogorov complexity to measure difficulty of problems? Locate the hot surface igniter and look for a spark or glow there. 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 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. When the pilot goes out, the thermocouple current drops and the power unit drops out, closing the safety shutoff valve. 0000006740 00000 n https://www.trutechtools.com/?affid=43 Use our Promo Code: \"acservicetech\" for 8% off your order! The automatic pilot safety is separate from the gas cock and provides gas shut Off in case of pilot Outage. Come join the discussion about tools, projects, builds, styles, scales, reviews, accessories, classifieds, and more! This is an electrical connection and must be clean and dry. Draw yourself the circuit. Use only your hand to push down the reset button or turn the gas control knob. 0000003019 00000 n 10 Easy Things to Check When Troubleshooting a Furnace Gas Valve. TABLE 5MAXIMUM LENGTH OF SUPPLEMENTARY LIMIT LEAD WIRES WHEN USING Q340A THERMOCOUPLE. 0000001836 00000 n - Reg. the robertshaw link gives max lengths vs. gauge. I show you how to Light the Pil. Push in firmly to lock in place. Turn off the gas supply valve to your appliance to test whether your valve is capable of shutting down properly. If tubing is used, obtain a tube-to-pipe coupling to connect the tubing to the gas control. Check the regulator setting either with a manometer or by clocking the gas meter. If either of the switches is bad, no go. Any help and/or comment would be greatly appreciated. TRADELINE MODELSTRADELINE models are selected and packaged to provide ease of stocking, ease of handling and maximum replacement value. With the main burner in operation, paint all pipe joints (including adapters) and gas control inlet and outlet with rich soap and water solution. 0000055306 00000 n To subscribe to this RSS feed, copy and paste this URL into your RSS reader. Resistance between the THTP & TH terminals must be 11.5 W0.2 W 2. to protect them and prevent gas from leaking, and discourage tampering by untrained people. The problem I'm having is very simple. Do not bend pilot tubing at gas control or pilot burner after compression fitting has been tightened, or gas leakage at the connection may result. (supposedly so they could fix them :yes: ). 0000062506 00000 n But it has been reliable for a long time. WARNINGFIRE OR EXPLOSION HAZARDS CAN CAUSE PROPERTY DAMAGE, SEVERE INJURY, OR DEATH. Circuit Millivolt Check Symptom - Intermittent shutdown or main burner will not light with on/off switch. Replace the thermocouple if voltages are outside the acceptable range. A stuck valve could release gas into the air without regulation or the valve could cause the unit not to fire up at all. Your problem seems to involve large -- really large -- "industrial size" issues. Bashing my head against the walls in some of the internet's finest chat rooms. Zero clearance sleeve is only required for combustible walls. 44 0 obj <>stream Use conversion factors in Table 2 to convert to capacities for other gases. 8Proper use of wrench on gas control. We might be able to do something about it. 0000028628 00000 n Identify/troubleshoot this millivolt furnace valve, We've added a "Necessary cookies only" option to the cookie consent popup. 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. When the ow pressure regulator is fully open, the high-pressure regulator maintains the desired full-rate outlet pressure as described for the standard regulator.The step model requires approximately 60 seconds to reset once the main burner goes off. The ON position allows pilot burner and main burner gas low under control of the thermostat and the two automatic valves. Read these instructions carefully. Standard Opening Pressure Regulation (VR8200A,M, and VR4200A, M)During the ON cycle, the servo pressure regulator provides close control of outlet pressure, even if inlet pressure and flow rate vary widely. If you do not smell gas, turn the knob on gas control counterclockwise. 0000001116 00000 n Do not remove seals until ready to connect piping.Follow the appliance manufacturer instructions if available; otherwise, use the instructions provided below. By clicking Post Your Answer, you agree to our terms of service, privacy policy and cookie policy. The gas control knob must be held depressed or the thermocouple must be heated sufficiently to hold the safety control valve open.ON: Permits main burner and pilot gas flow. Thus the flow of gas through the second automatic valve is reduced, and outlet pressure falls to the desired level. The gas valve part numbe read more 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. Is there a solution to add special characters from software and how to do it. 0000068110 00000 n 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 VR8200 Continuous Pilot Dual Automatic Valve Combination Gas Controls are used in gas-fired, standing pilot appliances. 0000098813 00000 n 0000023590 00000 n It looks like this: the thermopile is a generatorputs out up to 400 MV. Check your instruction manual to determine the voltage that should be running at your control valve circuit. 13. The best answers are voted up and rise to the top, Not the answer you're looking for? There must be two terminals in this connector block that powers the gas valve coil. Your Purchases through Amazon provide a means for channels such as mine to earn advertising fees from any purchases after clicking through. 0000002388 00000 n Check the transformer. Before lighting, smell all around the appliance area for gas. If tubing is used, ensure the ends are square, deburred and clean. LP to natural gas conversion kit available for standard and slow-opening models. Why isn't the spark gap lighting the pilot on my furnace? 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. After the adapter is installed, the gas control is attached to the adapter as outlined above. The minimum regulated capacity is 20 feet 3 /hour [0.6 meters 3 /hour]. 0000034533 00000 n 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. Your local Honeywell Residential and Building Controls Sales Office (check white pages of your phone directory). CONVERTING BETWEEN NATURAL AND LP GAS WARNING!FIRE OR EXPLOSION HAZARDS CAN CAUSE PROPERTY DAMAGE, SEVERE INJURY, OR DEATH. Place gas control knob in PILOT position. Always install sediment trap in gas supply line to prevent contamination of gas control. Never use any tools. I would not work on it, without completely replaceing the gas control system, and the furnace may not be worth that expense. 0000066914 00000 n When making the conversion, the main pilot burner orifices must be changed to meet the appliance manufacturer specifications. Tis the season. 0000028651 00000 n 0000013473 00000 n Refer to Table 7 or 8 for the factory-set nominal outlet pressures and adjustment ranges. Extinguish pilot flame. 0000012806 00000 n . Any adjustments to gas control equipment should be checked using combustion efficiency test equipment by trained technicians. 0000026384 00000 n 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. 0000072700 00000 n This may burn out the heat anticipator in the thermostat. Never use any tools. CONVENIENCE TERMINALS SERVE AS A TIE POINT ONLY. Turn the inner adjustment screw clockwise. Failure to do so may result in fire or explosion. Lv 4. The gas control should e replaced if: It does not perform properly on checkout or troubleshooting. If it is re-energized within 60 seconds, it may bypass or shorten the length of the low-pressure step. Dont touch any electrical switch or use the phone. 0000004302 00000 n hex wrench, as noted.PILOT GAS OUTLET: Compression fitting for 1/4 in. 10 0 obj <> endobj If the voltage is dead or not as rated, replace the valve. For a better experience, please enable JavaScript in your browser before proceeding. Remove seal over gas control inlet or outlet. (See Fig. Do not force the gas control knob on the appliance. When the pilot remains lit, turn the gas control knob counterclockwise. 0000019920 00000 n 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. I go over what to do if you are not receiving the correct voltages. IMPORTANT: The specifications given in this publication do not include normal manufacturing tolerances. Do not remove the existing window frame assembly. GAS CONTROL KNOB SETTINGSThe gas control knob has three settings:OFF: Prevents pilot and main burner gas flow.PILOT: Permits pilot gas flow only. Use only your hand to push down the reset button or turn the gas control knob. Some considerations are: Cycling frequency. Install sediment trap in the supply line to the gas control. Minimum regulated capacity is 20 feet 3 /hour [0.6 meters 3 /hour]. endstream endobj startxref Install control and appliance according to appliance manufacturer instructions. Required fields are marked *. 0000013496 00000 n It must measure at least 19.5VAC with the igniter powered. Zero clearance sleeve is required only for combustible walls. xref Regular preventive maintenance is important in applications that place a heavy load on system control such as in the commercial looking and agricultural and industrial industries because: The VR8200, VR4200 gas controls provide 3-position (OFF-PILOT-ON) manual control of gas flow. For the VR4200, when the gas control is installed external to the appliance, install the conduit cover on the conduit fitting. Is it possible to rotate a window 90 degrees if it has the same length and width? Run pipe or tubing to the gas control. JavaScript is disabled. The screw to adjust the pilot gas is a needle valve. 0000008848 00000 n 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. 0000003373 00000 n For push-in clip-type pilot burners: From beneath, insert the tip of the Q340 into the hole or barrel of the pilot burner. This valve is only for vent free applications. Choose the appropriate flange for your application. 2, 3 and 11, 12. Repeat after allowing the main burner to cool. 0000012011 00000 n 0000017038 00000 n 4. 0000004324 00000 n 0000003581 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. 250 items. pressure drop for straight-through configuration). Furnace gas valves cannot be repaired. the manual gas control knob is in the ON position. Appliances that may cycle 120,000 times annually should be checked monthly. Troubleshooting the valve and looking for known common issues will give you peace of mind by ensuring the safe operation of your Honeywell appliance. hb``Pc`` _Ps400! See Table 1 for model specifications.SUPPLY VOLTAGE:VR4200: 120 Vac, 60 Hz.VR8200: 24 Vac, 60 Hz. Insert bushing in gas control and thread pipe carefully into bushing until tight. I hope you enjoy and find them very beneficial! Tighten the screws to 25 inch-pounds of torque to provide a gas-tight seal. 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. The condition of the wiring is also suspect; loose connections, old oxidized control contacts, an old thermostat, are all potential problems. Now I'm sure my problem's the thermopile. 7.). Turn the gas control knob to the "On" position if the main burner does not turn on when the thermostat or controller is adjusted to start the appliance. The three-position manual gas control knob has ON, OFF, and PILOT positions. Assure the main gas supply valve is open and the pilot gas supply line is purged of air. 0000004941 00000 n If the O-ring is not attached or is missing, do not use the flange. Straight-through body pattern; right-angle adapters available for inlet and outlet. 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. If the pilot flame goes out, turn the gas control knob clockwise, If the pilot flame remains lit, turn the gas control knob counterclockwise. 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 SIT 822 Valve with a Honeywell Electronic Igniter NOTE: Remove glass before servicing. Apply a moderate amount of good quality pipe compound (Do not use Teflon tape) to pipe only, leaving two end threads bare. For the VR4200, make sure the conduit cover is in position and secured to the gas valve with the screw provided. 0000008225 00000 n WARNING!FIRE OR EXPLOSION HAZARDS CAN CAUSE PROPERTY DAMAGE, SEVERE INJURY, OR DEATH. What sort of strategies would a medieval military use against a fantasy giant? TO LIGHT THE PILOT BURNERSTOP! A normal reading will be in the range of 145 to 195 millivolts. With the loss of outlet pressure, the second automatic valve closes and is held closed by spring pressure on the diaphragm. Water heater won't light? A forum community dedicated to Do it yourself-ers and home improvement enthusiasts. Thermostat and gas control main burner gas flow.NOTE: Gas controls are shipped with the gas control knob in the ON position. While taking a Millivolt reading on a safety magnet, disconnect thermocouple & wires from the valve. Mount the gas control so gas flow is in the direction of the arrow on the bottom of the gas control. Good Reading Bad Reading I'm wondering though if 750 mv is for all thermopiles..even my old one dating back to about the mid 50s??? Thread pipe into gas control. On LP gas installation, use compound resistant to LP gas. 0000068133 00000 n With the . For a better experience, please enable JavaScript in your browser before proceeding. All adjustments, wiring connections, and pilot outlets are accessible from the top of the gas control. Readings outside this range indicate the gas valve is defective and must be replaced. I have an old millivolt gas furnace that's stopped working. WARNING!FIRE OR EXPLOSION HAZARDS CAN CAUSE PROPERTY DAMAGE, SEVERE INJURY OR DEATH.Do not disassemble the gas control; it contains no replaceable components. 0000139215 00000 n 0000006449 00000 n 0000017288 00000 n 0000002119 00000 n 0000010088 00000 n This diverts gas flow from the automatic valve diaphragm and causes a reduction of pressure on the underside of this diaphragm. I was just wondering about this the other day. Ever notice how civil DIY'ers are, generally? Ensure the ambient temperature does not exceed the ambient temperature ratings for each component. OD tubing. 0000002780 00000 n While holding tubing all the way in, slide compression fitting into place and engage threadsturn until finger tight. See Fig. Water heater not working? 0000004421 00000 n 0000009803 00000 n 0000023014 00000 n This product was the perfect replacement for the Honeywell thermopile in a circa 1975 gas fireplace unit. If the reset button does not pop up when released, stop immediately and call your service technician or gas supplier. Do not force the gas control knob. Thanks. It has been obsolete for over 30 yrs now. 0000013040 00000 n A stuck valve could release gas into the air without regulation or the valve could cause the unit not to fire up at all. If any particular ad is your REASON for blocking ads, please let us know. . Do NOT use Teflon tape. Determine if the pilot burner requires a thermocouple with a push-in clip or attachment nut, and attach the correct adapter to the. When the thermostat calls for heat, the automatic operator valve disc opens. 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. ny outlet pressure change is immediately reflected back to the pressure regulator diaphragm, which repositions to change the flow rate through the regulator valve and, thus, through the diaphragm-operated automatic valve. If it is, simply replace the igniter/flame rod assembly. *If higher than 35mv check connections and switch. If the inlet pressure is in the normal range (refer to Table 7 or 8), replace the existing gas control. TABLE 8PRESSURE REGULATOR SPECIFICATION PRESSURES IN kPa. 0000012695 00000 n 0000055329 00000 n Light the main burner. 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]. Pilot gas flows through a port in the ushing around the reset button shaft to the pilot burner. honeywell millivolt gas valve troubleshooting From Gas Control Valve 1- Turn main gas on and proceed to next step. Turn the gas control knob (Figs. Voltage drop across the switch terminals Burner on: 35 mv or less. 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. 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. VR8200J has a six-second delay from when the thermostat calls for heat until the main gas valve opens. THIS SHORTS VALVE COIL AND MAY BURN OUT THE ANTICIPATOR IN THE THERMOSTAT. What you are experiencing is why such adjustments are discouraged! Set thermostat to the desired temperature. 0000023567 00000 n If the knob or reset button will not operate by hand, replace the control using a qualified service technician. Most common. If the red reset button stays depressed after it is released, replace the gas control. Gas valve troubleshooting looks for a problem. Contact your Honeywell sales representative to request a gas valve with corrosion-resistant construction. This is a legacy product document supported by Resideo.This product is no longer manufactured. SPECIFICATIONS Main Gas Connection: Valve: 3/8 in. . Seems my new millvolt gas valve turns off PILOT and MAIN BURNERS. Do not try to light any appliance. The combination of spring pressure under the second automatic valve diaphragm and the lack of outlet pressure holds the diaphragm firmly closed. Assure the gas control knob is in the ON position. Euler: A baby on his lap, a cat on his back thats how he wrote his immortal works (origin?). 0000126186 00000 n 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. trailer Refer to Figs. Dusty, wet, or corrosive environment. 0000018745 00000 n To learn more, see our tips on writing great answers. Tubing installation must comply with approved standards and practices. This type of gas valve used a single thermocouple. 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. Models for natural or LP gas. You should NOT short out the t'stat terminals to check it. Troubleshooting an IID control system calls for an AC voltmeter with a 220-volt range or greater. Check the power unit resistance. In the "Resources for understanding gas valves" thread in the HVAC forum, someone wanted to know how a gas valve worked. I think I've had a service call on every millivolt system in my rentals.----I am debugging a Monessen millivolt gas valve. On LP installations, use compound resistant to LP gas. 6 terminals + 2 jumpers = 4 effective terminals = 4 nodes. I am trying to diagnose a problem with an old furnace. 0000031335 00000 n This includes a WIRING DIAGRAM. Do not thread pipe too far. Please comment and ask for videos that you would like to see in the future! 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. It only takes a minute to sign up. 2 and 3. Kit for conversion from LP to natural gas is available for standard and slow opening models. wc [0 kPa] to rated output pressure within 3-6 seconds (for an 80,000 Btuh furnace at 7 in. 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. 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. Installation of Logs and Lava Rock Material. Why are Suriname, Belize, and Guinea-Bissau classified as "Small Island Developing States"? Millivolt systems have been the industry standard for decades, and are in some ways simpler to troubleshoot than electronic ignition systems. 1/2 in. 15. 0000139520 00000 n Exposure to water, dirt, chemicals, and heat can damage the gas control and shut down the control system. TRADELINE model specifications are the same as those of standard models except as noted below.TRADELINE MODEL AVAILABLE: VR8200A Continuous Pilot Dual Automatic Combination Gas Control. If a gas leak is detected, tighten the pipe connection. The gas control knob is hard to turn or push down, or it fails to pop back up when released. Push and hold down the red reset button (Figs. )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. Flanges available for 3/8, 1/2 and 3/4 inch straight and 90 angle connection. Read the safety information in the WARNING.This appliance has a pilot burner, which must be lit by hand. Adjust the thermostat several degrees higher than your current room temperature. 0000027369 00000 n 0000062529 00000 n 0000027628 00000 n 0000005748 00000 n Thanks for that well-descriptive tips. . Advertisement The gas control is likely to have operated for more than 200,000 cycles. Styling contours by colour and by line thickness in QGIS. Where these instructions differ from the appliance manufacturer, follow the appliance manufacturer instructions.All wiring including 1/4 in.