Contact your Honeywell sales representative to request a gas valve with corrosion-resistant construction. In the "Resources for understanding gas valves" thread in the HVAC forum, someone wanted to know how a gas valve worked. 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. 0000012011 00000 n Use new, properly reamed pipe free from chips. The boiler comes on twice a day - morning and night. When the pilot remains lit, turn the gas control knob counterclockwise. 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? . 0000006973 00000 n In this HVAC Furnace Video, I go over the Operation and Troubleshooting of a 750 Millivolt Gas Valve and Thermopile/PowerPile. Thus the flow of gas through the second automatic valve is reduced, and outlet pressure falls to the desired level. (50/60 Hz models available on request. TABLE 7PRESSURE REGULATOR SPECIFICATION PRESSURES IN INCHES WC. 0000016980 00000 n Is it possible to rotate a window 90 degrees if it has the same length and width? 0000012919 00000 n 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. If the knob or reset button will not operate by hand, replace the control using a qualified service technician. Pilot gas flow should stop within 2-1/2 minutes. wc [0.9 kPa] outlet pressure). 4 0 obj <> endobj If you'd like to support the site, please allow ads. For the VR4200, make sure the conduit cover is in position and secured to the gas valve with the screw provided. IF THE MAIN BURNER IS OVERFIRINGAdjust the gas control pressure regulator to the correct pressure. Both pilot and main burner are shut off. Read these instructions carefully. 0000026384 00000 n 0000060666 00000 n Turn the inner adjustment screw clockwise. 0000003485 00000 n 0000013062 00000 n I was just wondering about this the other day. I would not work on it, without completely replaceing the gas control system, and the furnace may not be worth that expense. If the pilot flame goes out, turn the gas control knob clockwise, If the pilot flame remains lit, turn the gas control knob counterclockwise. 0000007638 00000 n Most common. 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. 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. SAFETY SHUTOFF OPERATIONIn the safety shutoff position, pilot and main burner gas flow is permitted.Safety shutoff occurs: Gas Control Knob Turned to OFFWhen the gas control knob is turned to OFF, it pulls up and locks the reset button, and closes the first automatic valve. Thermostat and gas control main burner gas flow.NOTE: Gas controls are shipped with the gas control knob in the ON position. 0000002780 00000 n See Fig. When the thermostat calls for heat, the automatic operator valve disc opens. The gas control should e replaced if: It does not perform properly on checkout or troubleshooting. . This diverts gas flow from the automatic valve diaphragm and causes a reduction of pressure on the underside of this diaphragm. 0000001116 00000 n 0000055329 00000 n Insert bushing in gas control and thread pipe carefully into bushing until tight. For screen reader problems with this website, please call 1-800-430 . Install the Q340A asfollows: Connect ThermocoupleConnect thermocouple lead as shown in Fig. 0000028651 00000 n 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. THEY ARE NOT INTERNALLY WIRED TO THE CONTROL CIRCUIT OR TO THE GROUND. The screw to adjust the pilot gas is a needle valve. 0000027628 00000 n 0000055306 00000 n 2 or 3) clockwise. Use only your hand to push down the reset button or turn the gas control knob. And after two or so minutes, the gas chambers will be lit. Solenoid-operated first automatic valve opens on thermostat call for heat and closes when the call for heat ends. cut tubing to the desired length and bend as necessary for routing to pilot burner. The PILOT position allows pilot burner gas flow only. The condition of the wiring is also suspect; loose connections, old oxidized control contacts, an old thermostat, are all potential problems. 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. Also found in certain gas space heaters and construction-site portable heaters. If above 11 ohms, replace the gas control. Check the wiring between the thermocouple and the gas control valve operator. The servo pressure regulator monitors outlet pressure to provide n even the main burner gas flow. What you are experiencing is why such adjustments are discouraged! Combination screw and quick-connect terminals on TRADELINE models. Outlet pressure to the main burner increases gradually from 0 in. Light the main burner. The gas control must be manually reset. 0000049205 00000 n 0000006141 00000 n 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. ,[Uw-GTk`{LvG*!1li$:,nZeQh.i&. 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. 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. I go over how it is Wired, wha. 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. If the inlet pressure is in the normal range (refer to Table 7 or 8), replace the existing gas control. 0000002388 00000 n To ensure proper operation, follow these guidelines: Locate the gas control in the appliance vestibule on the gas manifold. 0000028590 00000 n Attempt to light pilot burner flame following procedures in the Light the Pilot Burner Flame section. 0000004941 00000 n This is How to Wire the Thermopile to The 750mv Gas Valve for the Pilot and Main Gas Burners. Exposure to water, dirt, chemicals, and heat can damage the gas control and shut down the control system. The first automatic valve is closed. The gas valve part numbe read more Rear V ented Direct V ent Gas Fireplace Model: PLEASE READ THE INSTALLATION & OPERATING INSTRUCTIONS BEFORE USING THE APPLIANCE. We come out with new videos every few days from my job sites, service calls, and the training shop! We might be able to do something about it. Gas valves nowadays are one piece with 100% shutoff for the pilot flame gas and shutoff valve etc all in one valve. If tubing is used, obtain a tube-to-pipe coupling to connect the tubing to the gas control. 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. Appliances that are used seasonally should be checked before shutdown and again before the next use. Your Purchases through Amazon provide a means for channels such as mine to earn advertising fees from any purchases after clicking through. 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]. Is it correct to use "the" before "materials used in making buildings are"? Required fields are marked *. 0000034533 00000 n Dont touch any electrical switch or use the phone. Do not secure conduit cover at this time. ' b1?T3/0.!0s.2c7oDp!c{|87*G2s>y~O9SNF. I'm wondering though if 750 mv is for all thermopiles..even my old one dating back to about the mid 50s??? To subscribe to this RSS feed, copy and paste this URL into your RSS reader. Seems my new millvolt gas valve turns off PILOT and MAIN BURNERS. 0000004421 00000 n Force or attempted repair can result in fire or explosion. Check the regulator setting either with a manometer or by clocking the gas meter. endstream endobj 11 0 obj <> endobj 12 0 obj <> endobj 13 0 obj <>stream 0000041780 00000 n Place gas control knob in PILOT position. 0000060689 00000 n 0000001377 00000 n Do not force the gas control knob on the appliance. 0000023567 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. Zero clearance sleeve is required only for combustible walls. 0000010874 00000 n Your local Honeywell Residential and Building Controls Sales Office (check white pages of your phone directory). 250 items. 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. This increases gas pressure under the automatic valve and repositions the valve disc closer to the seat. The automatic pilot safety is separate from the gas cock and provides gas shut Off in case of pilot Outage. Vermont Castings, Majestic Products: DVR33, Window Frame Assembly Should be Removed Before Service Work, Troubleshooting Honeywell Millivolt Valve, Homeowner's Installation and Operating Manual. Tighten only 1/4 turn beyond finger tight to give good electrical continuity. Such heavy cycling wears out the gas control in one to two years. 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. This may burn out the heat anticipator in the thermostat. Your problem seems to involve large -- really large -- "industrial size" issues. 0000005748 00000 n 0000005616 00000 n Refer to Fig. 0000039877 00000 n Test the voltage using an AC voltmeter. If so, then the thermocouple or thermopile is generating enough voltage to keep the safety valve open. 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. Both should be under cap screws. 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. 0000004324 00000 n 0000139520 00000 n White-Rodgers, Honeywell, and other valves makers will usually have it pre-set to that 3.5 wc, some installers forget . 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 I have an old millivolt gas furnace that's stopped working. 0000002119 00000 n As with the millivolt system, you'll be testing a series of components to locate the faulty part. Set thermostat to the desired temperature. Ensure the O-ring is fitted into the groove of the flange. 0000098789 00000 n 0000062529 00000 n After the adapter is installed, the gas control is attached to the adapter as outlined above. %PDF-1.3 % 0000006449 00000 n Installation of Logs and Lava Rock Material. To adjust the pilot flame: LIGHT MAIN BURNERFollow the appliance manufacturer instructions or set the thermostat setting above room temperature to call for heat.