To adjust the pilot flame: LIGHT MAIN BURNERFollow the appliance manufacturer instructions or set the thermostat setting above room temperature to call for heat. Tubing installation must comply with approved standards and practices. hb``Pc`` _Ps400! You may have to wiggle it a bit before it comes loose. Check the power supply rating on the valve and make sure it matches the available supply. 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. The PILOT position allows pilot burner gas flow only. Mount gas control high enough above cabinet bottom to avoid exposure to flooding or splashing water. 0000016758 00000 n 0000006740 00000 n 2 or 3) while you light the pilot burner. Replace the part if the gas leak cannot be stopped. 0000015409 00000 n 0000049228 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. 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. Do not overtighten. If outlet pressure begins to fall, the pressure regulator diaphragm moves slightly lower allowing ore to flow to the gas control outlet. 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! The minimum regulated capacity is 20 feet 3 /hour [0.6 meters 3 /hour]. Thread pipe into gas control. 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. Thus the flow of gas through the second automatic valve is reduced, and outlet pressure falls to the desired level. 0000008826 00000 n 0000012806 00000 n WIRINGFollow the wiring instructions furnished by the appliance manufacturer, if available, or use the general instructions provided below. 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. For a better experience, please enable JavaScript in your browser before proceeding. (See Fig. Good Reading Bad Reading This type of gas valve used a single thermocouple. Do not try to light any appliance. Mount the gas control 0-90 degrees, in any direction, from the upright position of the gas control knob, including vertically. Lv 4. 0000042992 00000 n This includes a WIRING DIAGRAM. Turn off the main gas supply to the appliance. %PDF-1.3 % The diaphragm-operated second automatic valve opens under the control of the regulator and closes if gas or power supply is interrupted. Honeywell Gas Valve Code 5 Whirlpool Water Heater Flammable Vapor Sensor Lockout How To Reset Honeywell Water Heater Pilot Keeps Going out - CLEAN THE FILTER GRATE! 0000001377 00000 n IF THE MAIN BURNER IS OVERFIRINGAdjust the gas control pressure regulator to the correct pressure. Such heavy cycling wears out the gas control in one to two years. What you are experiencing is why such adjustments are discouraged! TABLE 6MAXIMUM LENGTH OF SUPPLEMENTARY LIMIT LEADWIRES WHEN USING Q309A THERMOCOUPLE. Do not overtighten. Mutually exclusive execution using std::atomic? 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. Standard-, slow- and step-opening models available. For push-in clip-type pilot burners: From beneath, insert the tip of the Q340 into the hole or barrel of the pilot burner. To check for gas pipe leaks, put soap on the pipe connecting to the valve, if it bubbles, it means there's leakage. 5. 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. Force or attempted repair can result in fire or explosion. The first automatic valve is closed. Ensure the O-ring is fitted into the groove of the flange. . Hunker may earn compensation through affiliate links in this story. WARNING!FIRE OR EXPLOSION HAZARDS CAN CAUSE PROPERTY DAMAGE, SEVERE INJURY OR DEATH.Do not disassemble the gas control; it contains no replaceable components. The pilot works fine but the main burner does not come on by the wall mounted thermostat or the manual on/off switch. 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. 0000006973 00000 n Readjust the full rate outlet pressure if necessary to improve light off characteristics. Troubleshooting Honeywell Millivolt Valve, Troubleshooting the Gas Control System, Troubleshooting the Gas Control System, Vermont Castings, Majestic Products: DVR33, SYMPTOM POSSIBLE CAUSES CORRECTIVE ACTION Insert bushing in gas control and thread pipe carefully into bushing until tight. Check fireplace to make sure it is levelled and properly positioned. Thanks for contributing an answer to Home Improvement Stack Exchange! If the gas control knob or reset button will not operate by hand, or if the reset button stays depressed after it is released, the gas control should be replaced by a qualified service technician. 0000002119 00000 n Please comment and ask for videos that you would like to see in the future! I was trying to use the "MILLIVOLT TROUBLESHOOTING CHART", on page 2 of this . A consequence of unexpected shutdown. GAS CONTROL KNOB SETTINGSThe gas control knob has three settings:OFF: Prevents pilot and main burner gas flow.PILOT: Permits pilot gas flow only. Troubleshooting the valve and looking for known common issues will give you peace of mind by ensuring the safe operation of your Honeywell appliance. 0000055329 00000 n 0000010088 00000 n thatguy, I hear you. Some considerations are: Cycling frequency. Outlet pressure to the main burner increases gradually from 0 in. Thanks. When the thermostat calls for eat, the first automatic valve and the second automatic valve operator are energized. Thanks for that well-descriptive tips. If tubing is used, ensure the ends are square, deburred and clean. 0000012011 00000 n See you next time at ACSERVICETECH Channel!Check out All of the ACSERVICETECH Playlists- https://www.youtube.com/channel/UCOZR-1IqsAer9wzlvFgb4mA/playlists?view_as=publicIf you want to support the ACSERVICETECH Channel and receive more HVAC content, check out www.Patreon.com/acservicetechACSERVICETECH is a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for sites to earn advertising fees by advertising and linking to Amazon.com.You can enter Amazon through this http://amzn.to/2aenwTqHere is a link to the Fieldpiece SC640 Multimeter- http://amzn.to/2x8k4KbHere is a link to the Fieldpiece SC660 Wireless Multimeter- http://amzn.to/2gWDUhcHere is the link for the Robertshaw low profile millivolt gas valve- http://amzn.to/2iLXzEhHere is the link for the White Rodgers 750mv thermopile- http://amzn.to/2zhKVnFHere is the link for the Robertshaw Pilot and 750mv Thermopile combo- http://amzn.to/2zZAH8wHere is the link for the Honeywell armored cable 750mv Thermopile- http://amzn.to/2yfR9UKHere is a link to the Pro 3000 24v Thermostat used in the video- http://amzn.to/2keuUbsHere is a link to the JB 6 CFM Vacuum Pump http://amzn.to/2nqbvo8Here is the Link to the Appion Blue 3/8\" to 1/4\" Vacuum Hose- http://amzn.to/2uYlVycHere is the Link to the Appion Red 3/8\" to 1/4\" Vacuum Hose- http://amzn.to/2uYg6RoHere is the link to the Appion Valve Core Removal Tool- http://amzn.to/2uYr8WLHere is the link to the Yellow Jacket 1/4\" by 1/4\" heavy duty hose straight- http://amzn.to/2umtcodHere is the link to the CPS Vacuum Micron Gauge- http://amzn.to/2v1nM3OHere is the link to the Supco Vacuum Micron Gauge- http://amzn.to/2v1JRiAHere is a link for RectorSeal Bubble Gas Leak Detector http://amzn.to/2ckWACnHere is a link to the UEI DL389 Multimeter used in the videos- http://amzn.to/2xAdaJfHere is the link to the Fieldpiece ST4 Dual Temp Meter- http://amzn.to/2wc1ME3Here is a link to the Air Acetylene Torch setup- http://amzn.to/2aQalsb Here is a link to the 15% Silver Brazing Rods- http://amzn.to/2gVLyLcHere is a link the Nitrogen Regulator http://amzn.to/2bXdR5fHere is a link to the Nitrogen Flow Meter http://amzn.to/2brvoBgHere is a link to the Digital Refrigerant Scale used in the videohttp://amzn.to/2b9oXYl Here is the Link for the Yellow Jacket Refrigerant Manifold Gauge Set used in the videos http://amzn.to/2aenwTqHere is a link to Refrigerant hoses with valves used in the videos http://amzn.to/2aBumVIHere is the link for the Imperial Kwik Charge 535-C- http://amzn.to/2uipEI6 Here is the link to the Fieldpiece SDMN6 Dual Pressure Testing Manometer with Pump-http://amzn.to/2jyK5KaHere is a link for the Supco Magnet Jumpers http://amzn.to/2gS4h6zHere is a link to 1 gallon of JB Vacuum Pump Oil http://amzn.to/2mGrlXyHere is a link to the General Tools digital Psychrometer http://amzn.to/2cSHsi1Here is a link to the Fieldpiece SDP2 Digital Psychrometer- http://amzn.to/2nniMVRHere is the link for the Ratcheting Service Wrench http://amzn.to/2dGV4NhHere is a link to the Appion G5 Twin Recovery Pump http://amzn.to/2dGSEyr Here is a link to the Malco Sheet metal scribe- http://amzn.to/2qCwu9DHere is a link to the Wiss Right Tin Snips- http://amzn.to/2rGnBvXHere is a link to the Wiss Bulldog snips- http://amzn.to/2rd1Dz5Here is a link to the Malco 90 Degree Right Hand Vertical Snips- http://amzn.to/2qHHpu4Here is the link for the Irwin Wire Stripper/Cutter/Crimper http://amzn.to/2dGTj2VThank You, ACSERVICETECH Maintenance frequency must be determined individually for each application. This shuts off the pilot and main burner gas flow. 0000006141 00000 n It only takes a minute to sign up. One Q340A 36-inch thermocouple with adapters and clip. 0000060689 00000 n Because gas is involved, problems with gas valves are a major safety concern. 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. 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. 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. The pilot light is auto so when the thermostat calls for heat, a spark is sent to the ignition lighting up the pilot. Do not remove the existing window frame assembly. If the appliance is a hot water heater but it's not firing up, the thermopile might be weak. 0000028590 00000 n It has been obsolete for over 30 yrs now. Order number, SUPER TRADELINE or TRADELINE if desired. The main burner gas flow is blocked by both automatic valves. If any particular ad is your REASON for blocking ads, please let us know. If the voltage is dead or not as rated, replace the valve. In many such applications, particularly commercial cooking, the equipment operates 100,000-200,000 cycles per year. Before lighting, smell all around the appliance area for gas. 15. 0000004421 00000 n *If higher than 35mv check connections and switch. Never use any tools. Water heater won't light? 0000013062 00000 n WHEN THE THERMOSTAT CALLS FOR HEATThe gas control allows pilot and main burner gas flow during the thermostat ON cycle, as shown in Fig. Install ThermocoupleThe Q340A Thermocouple (with adapters) is provided with SUPER TRADELINE models of the VR8200A. Bashing my head against the walls in some of the internet's finest chat rooms. Readings outside this range indicate the gas valve is defective and must be replaced. This is a very useful thread and am learning a lot from it partly because of my situation with my current Weil McClain boiler. Replace the thermocouple if voltages are outside the acceptable range. Set your voltmeter for the proper voltage that is, above 24 volts. 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. This valve is only for vent free applications. 6 terminals + 2 jumpers = 4 effective terminals = 4 nodes. 0000027369 00000 n Bulk update symbol size units from mm to map units in rule-based symbology. But it has been reliable for a long time. If the gas control knob or reset button will not operate by hand, the gas control should be replaced by a qualified service technician. endstream endobj 11 0 obj <> endobj 12 0 obj <> endobj 13 0 obj <>stream WARNING!FIRE OR EXPLOSION HAZARDS CAN CAUSE PROPERTY DAMAGE, SEVERE INJURY, OR DEATH. Thermopile readings: With all wires connected, with the pilot on and burners off, the thermopile reading at the TP & THTP terminals should be ~325mV. Never use any tools. Check the pilot burner flame adjustment. The combination of spring pressure under the second automatic valve diaphragm and the lack of outlet pressure holds the diaphragm firmly closed. When the pilot remains lit, turn the gas control knob counterclockwise. CHECK SAFETY SHUTDOWN PERFORMANCEWARNING!FIRE OR EXPLOSION HAZARDS CAN CAUSE PROPERTY DAMAGE, SEVERE INJURY, OR DEATH.Perform the safety shutdown test any time work is done on a gas system. Thanks. 0000003019 00000 n When the pilot goes out or becomes too small to sustain normal ignition. On LP gas installation, use compound resistant to LP gas. 0000005081 00000 n Inlet and outlet pressure taps included; both taps accessible from the top of gas control. See Accessories.CAPACITY: 130 feet 3 /hour [4.2 meters 3 /hour]. 10 0 obj <> endobj 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. 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. Use only your hand to push down the reset button or turn the gas control knob. The Honeywell Home trademark is used under license from Honeywell International Inc. . Repeat after allowing the main burner to cool. Circuit Millivolt Check Symptom - Intermittent shutdown or main burner will not light with on/off switch. 0000072700 00000 n TRADELINE MODELSTRADELINE models are selected and packaged to provide ease of stocking, ease of handling and maximum replacement value. By clicking Accept all cookies, you agree Stack Exchange can store cookies on your device and disclose information in accordance with our Cookie Policy. For the VR4200, make sure the conduit cover is in position and secured to the gas valve with the screw provided. first the 360 millivolts you show should have been 750 to 800 millivolts since this is a pilot generator. endstream endobj startxref Tech Guru. 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. Dont touch any electrical switch or use the phone. the robertshaw link gives max lengths vs. gauge. Terminal block color-coded beige.THERMOSTAT HEAT ANTICIPATOR SETTING:VR4200: 0.1AVR8200: 0.5ATYPE OF GAS: VR8200 and VR4200 set up for naturalgas includes a 393691 LP Conversion Kit. Place one meter lead to soldered point on back of valve and one to ground. 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. 0000068110 00000 n Refer to Fig. Adjust the thermostat several degrees above room temperature. Set the thermostat to the lowest setting and shut off the electric power to the appliance. Remove seals over gas control inlet and outlet if necessary. . Refer to Figs. 0000057737 00000 n Yes, there is one screw to adjust the gas to the pilot and another to adjust the gas to the main burner. 0000072676 00000 n We get it, but (1) terrylove.com can't live without ads, and (2) ad blockers can cause issues with videos and comments. JavaScript is disabled. 0000126162 00000 n 0 14 when the: The power unit holds the safety shutoff valve disc off its seat, so gas can flow into the control. May be installed at any angle between 0 and 90 degrees from the upright position, including vertically. 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]. Avoid locating gas control where exposure to corrosive chemical fumes or dripping water are likely. The gas valve ( which came over with Christopher Columbus :laughing is finally seizing up/kaput. In the "Resources for understanding gas valves" thread in the HVAC forum, someone wanted to know how a gas valve worked. The ON position allows pilot burner and main burner gas low under control of the thermostat and the two automatic valves. To ensure proper operation, follow these guidelines: Locate the gas control in the appliance vestibule on the gas manifold. Turn the inner adjustment screw clockwise. You must log in or register to reply here. Never use pipe compound. This includes a WIRING DIAGRAM. POWER SUPPLY. 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. This type of gas valve used a single thermocouple. 1. 400 millivolts across the generator loadedcurrent flowing through the switches and valvesis about right. If tubing is used, obtain a tube-to-pipe coupling to connect the tubing to the gas control. 10. 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. Do not make sharp bends or deform the tubing. Connect the other end of the tubing to the pilot burner according to pilot burner manufacturer instructions. Assure thermocouple connection to the power unit is tightened 1/4 turn beyond finger tight. The internal valve coil must then be connected to the topmost and bottommost of the four terminals. There must be two terminals in this connector block that powers the gas valve coil. TABLE 5MAXIMUM LENGTH OF SUPPLEMENTARY LIMIT LEAD WIRES WHEN USING Q340A THERMOCOUPLE. If the switches are good, that sort of defaults to a bad gas valve. There is a heat anticipator coil in there which limits current to the valve, and shorting that out can damage the valve. SYMPTOM POSSIBLE CAUSES CORRECTIVE ACTION. With the . '', 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. This diverts gas flow from the automatic valve diaphragm and causes a reduction of pressure on the underside of this diaphragm. 0000044882 00000 n I would recommend replacing all the wiring and controls and the pilot generator. Refer to Fig. This may burn out the heat anticipator in the thermostat. Insert and tighten the screws provided with the flange. Replace the thermocouple if voltages are outside the acceptable range. Some tips regarding the Honeywell Millivolt valve: Always ensure the switch is in the off position when lighting the pilot. %PDF-1.5 % 0000055306 00000 n 0000003373 00000 n 0000052168 00000 n White-Rodgers, Honeywell, and other valves makers will usually have it pre-set to that 3.5 wc, some installers forget . Connect the pipe to gas control inlet and outlet. JavaScript is disabled. The VR8200 Continuous Pilot Dual Automatic Valve Combination Gas Controls are used in gas-fired, standing pilot appliances. the manual gas control knob is in the ON position. Paint all pipe connections upstream of the gas control with a rich soap and water solution. Ensure the main burner lights smoothly and without a flashback to the orifice and that all ports remain lit. 0000028651 00000 n 0000001116 00000 n The main burner should go off and the pilot should remain lit. 0000028628 00000 n . Contact your Honeywell sales representative to request a gas valve with corrosion-resistant construction. Install the Q340A asfollows: Connect ThermocoupleConnect thermocouple lead as shown in Fig. When the thermostat calls for heat, the automatic operator valve disc opens. A stuck valve could release gas into the air without regulation or the valve could cause the unit not to fire up at all. 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. 0000001836 00000 n - Reg. Insert the replacement spring with the tapered end down. 0000041780 00000 n If a gas leak is detected, tighten the pipe connection. TABLE 8PRESSURE REGULATOR SPECIFICATION PRESSURES IN kPa. If necessary, adjust the pressure regulator to match the appliance rating. 0000026384 00000 n 2. There must be two terminals in this connector block that powers the gas valve coil. Filter. 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. It may not display this or other websites correctly. 2 or 3) clockwise. Good info, thanks! If above 11 ohms, replace the gas control. 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. ' b1?T3/0.!0s.2c7oDp!c{|87*G2s>y~O9SNF. If the inlet pressure is in the normal range (refer to Table 7 or 8), replace the gas control. 0000023567 00000 n Below are my tests: 0000139520 00000 n Disconnect power supply before wiring to prevent electrical shock or equipment damage. Assure the main gas supply valve is open and the pilot gas supply line is purged of air. Do NOT use Teflon tape. 0000060666 00000 n 12Wiring connections for 120-volt control. 6. 0000044905 00000 n 8Proper use of wrench on gas control. After installation is complete, use these instructions to check out product operation. I show you how to Light the Pil. Refer to the Adjust the Pilot Burner Flame section. 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. Connect and share knowledge within a single location that is structured and easy to search. If the red reset button stays depressed after it is released, replace the gas control. It looks like you're using an ad blocker. Do not remove seals until ready to connect piping.Follow the appliance manufacturer instructions if available; otherwise, use the instructions provided below. Extinguish pilot flame. Cover gas control if the appliance is cleaned with water, steam, or chemicals to avoid dust and grease accumulation. Intermittent use. If so, then the thermocouple or thermopile is generating enough voltage to keep the safety valve open. Turn the gas control knob (Figs. On LP installations, use compound resistant to LP gas. Adjustable servo regulator effectively maintains almost constant gas output pressure under wide fluctuation in gas supply pressure. Hold down the gas control knob about one minute, then release. Come join the discussion about tools, projects, builds, styles, scales, reviews, accessories, classifieds, and more! If it is re-energized within 60 seconds, it may bypass or shorten the length of the low-pressure step. (supposedly so they could fix them :yes: ), Cool. If the pilot flame goes out, turn the gas control knob clockwise, If the pilot flame remains lit, turn the gas control knob counterclockwise. I was just wondering about this the other day. 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. This product was the perfect replacement for the Honeywell thermopile in a circa 1975 gas fireplace unit. Do not exceed the input rating stamped on the appliance nameplate or manufacturer-recommended burner orifice pressure for the size orifice(s) used. 394349 9/64 inch hex tool for flange assembly screws. If resistance is outside of specifications listed, the gas valve must be replaced. 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. All adjustments, wiring connections, and pilot outlets are accessible from the top of the gas control. 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. 250 items. 0000137823 00000 n hex wrench, as noted.PILOT GAS OUTLET: Compression fitting for 1/4 in. Draw yourself the circuit. Therefore, this unit may not exactly match the listed specifications. Two convenience terminals on top of control(optional). 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? When the thermostat calls for heat, the first automatic valve and the second automatic valve operator open. Fig. 54), whichever applies. 0000008225 00000 n OD tubing. And, it was very cost competitive to other non-Honeywell thermopiles. 0000011045 00000 n Works with the majority of millivolt gas valves; Push-in clip for easy installation included; . Step 8. Gas valve troubleshooting looks for a problem. Failure to do so may result in fire or explosion. How to tell which packages are held back due to phased updates, Short story taking place on a toroidal planet or moon involving flying. You are using an out of date browser. The VS8421 Millivolt Gas Valve has a 60,000 Btuh capacity (1 in. Loss of pilot flame or flame too small to reliably light the main burner closes the safety shutoff valve and the second automatic valve. VerticalScope Inc., 111 Peter Street, Suite 600, Toronto, Ontario, M5V 2H1, Canada. Styling contours by colour and by line thickness in QGIS. 0000003485 00000 n 0000011836 00000 n Fig. Force or attempted repair may result in fire or explosion. If an adapter is used, place the wrench on the adapter rather than on gas control. 0000011989 00000 n They include a safety shutoff, a manual valve, two automatic operators, a pressure regulator, a pilot adjustment, and a conduit cover (VR4200 only). 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. Resistance between the THTP & TH terminals must be 11.5 W0.2 W 2. 0000004711 00000 n Use new, properly reamed pipe free from chips. Taps are 1/8 inch NPT with a plug containing recess for 3/16 inch Allen wrench.PRESSURE RATING: A.G.A. Assure the main burner primary air supply is properly adjusted for complete combustion (refer to the appliance manufacturer instructions). Models for natural or LP gas. 0000002246 00000 n This increases gas pressure under the automatic valve and repositions the valve disc closer to the seat. 0000007879 00000 n 0000019920 00000 n If your gas supplier cannot be reached, call the fire department. Rear V ented Direct V ent Gas Fireplace Model: PLEASE READ THE INSTALLATION & OPERATING INSTRUCTIONS BEFORE USING THE APPLIANCE. Jumping between the TP/TH and TH does NOT turn the main burner on. Locate gas control in a well-ventilated area. This wiring should reduce to a simple series circuit: a gas valve coil in series with a thermopile in series with a t'stat with normally open contacts in series with a limit switch with normally closed contacts. In this HVAC Furnace Video, I go over the Operation and Troubleshooting of a 750 Millivolt Gas Valve and Thermopile/PowerPile. 0000015431 00000 n Do not force the gas control knob. If another gas leak is detected, tighten adapter screws, joints, and pipe connections. If outlet pressure begins to rise, the pressure regulator the diaphragm moves slightly higher, allowing less gas flow to the gas control outlet.
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