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. Use new, properly reamed pipe free from chips. This is a legacy product document supported by Resideo.This product is no longer manufactured. Insert bushing in gas control and thread pipe carefully into bushing until tight. 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. SYMPTOM POSSIBLE CAUSES CORRECTIVE ACTION. Check your instruction manual to determine the voltage that should be running at your control valve circuit. But it has been reliable for a long time. If the appliance is a hot water heater but it's not firing up, the thermopile might be weak. Yes, this shows the pilot gen. in series with the limit switch in series with the t'stat. Free shipping for many products! Then the regulator valve is forced fully open by the timing diaphragm, which is operated by bleed gas. Draw yourself the circuit. 0000001116 00000 n 0000012806 00000 n Models for natural or LP gas. The electrical/scientific basis for millivolt systems is the Seebeck Do not remove seals until ready to connect piping.Follow the appliance manufacturer instructions if available; otherwise, use the instructions provided below. 0000008826 00000 n 0000018745 00000 n Refer to Startup and Checkout section. 0000043015 00000 n Why Do the Burners Work but the Oven Does Not Work on My Gas Stove. The condition of the wiring is also suspect; loose connections, old oxidized control contacts, an old thermostat, are all potential problems. How to tell which packages are held back due to phased updates, Short story taking place on a toroidal planet or moon involving flying. 0000023014 00000 n You can test the rest of the system by temporarily replacing the generator with a 1.5 volt standard flashlight battery. When the pilot goes out, the thermocouple current drops and the power unit drops out, closing the safety shutoff valve. 0000019920 00000 n The PILOT position allows pilot burner gas flow only. Zero clearance sleeve is only required for combustible walls. 0000137823 00000 n A1/{;_Fe o(*=`. The best answers are voted up and rise to the top, Not the answer you're looking for? 0000007638 00000 n ADJUST THE PILOT BURNER FLAMEThe pilot flame should envelop 3/8 to 1/2 in. Voltage drop across the switch terminals Burner on: 35 mv or less. They include a safety shutoff, a manual valve, two automatic operators, a pressure regulator, a pilot adjustment, and a conduit cover (VR4200 only). 0000042992 00000 n 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. Please comment and ask for videos that you would like to see in the future! 0000016504 00000 n The power unit drops out, closing the safety valve and stopping all gas flow through the control.With the loss of outlet pressure, the second automatic valve closes and is held closed by spring pressure on the diaphragm. Check the transformer. Jimbo, Thanks for that tip. Turn the pressure regulator adjustment screw clockwise. Connect the other end of the tubing to the pilot burner according to pilot burner manufacturer instructions. So, to diagnose a gas valve, first check to see if the pilot light is on. Step 8. Asking for help, clarification, or responding to other answers. 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. 0000003581 00000 n Never use any tools. . Set thermostat to the desired temperature. Troubleshooting Honeywell Millivolt Valve, Troubleshooting the Gas Control System, Troubleshooting the Gas Control System, Vermont Castings, Majestic Products: DVR33, SYMPTOM POSSIBLE CAUSES CORRECTIVE ACTION See Fig. If so, how close was it? 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. Appliances that may cycle 120,000 times annually should be checked monthly. 0000004711 00000 n Why are Suriname, Belize, and Guinea-Bissau classified as "Small Island Developing States"? You should NOT short out the t'stat terminals to check it. 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. 0000003816 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. 0000098813 00000 n Run pipe or tubing to the gas control. a. Use only your hand to push down the reset button or turn the gas control knob. THIS SHORTS VALVE COIL AND MAY BURN OUT THE ANTICIPATOR IN THE THERMOSTAT. 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Apply a moderate amount of good quality pipe compound to bushing, leaving two end threads bare. Your problem seems to involve large -- really large -- "industrial size" issues. Refer to Fig. 0000023590 00000 n If something is wrong with the internal components of the gas valve, the gas valve should be replaced. Do not force the gas control knob. The Honeywell Home trademark is used under license from Honeywell International Inc. . 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. The maximum regulated capacity is 200 feet 3 /hour [5.7 meters 3 /hour]. 5. Exposure to water, dirt, chemicals, and heat can damage the gas control and shut down the control system. You are using an out of date browser. 0000002758 00000 n 0000012011 00000 n cut tubing to the desired length and bend as necessary for routing to pilot burner. 0000006740 00000 n Insert and tighten the screws provided with the flange. As for the gas valve it is probably a "general controls" valve but any 800 millivolt gas valve can be used as a replacement. Do not make sharp bends or deform the tubing. 0000002388 00000 n 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. 0000013062 00000 n VerticalScope Inc., 111 Peter Street, Suite 600, Toronto, Ontario, M5V 2H1, Canada. When the gas control knob is manually turned to OFF. Advertisement 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. When installing the appliance as a rear vent unit, the 90. 0000057714 00000 n Bulk update symbol size units from mm to map units in rule-based symbology. It must measure at least 19.5VAC with the igniter powered. 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! 0000041780 00000 n The ON position allows pilot burner and main burner gas low under control of the thermostat and the two automatic valves. 0000006141 00000 n What sort of strategies would a medieval military use against a fantasy giant? Regulator Cap Conversion Screw Pressure Regulator Housing, Cleaning the Standing Pilot Control System. It has been obsolete for over 30 yrs now. 0000044882 00000 n I think I've had a service call on every millivolt system in my rentals.----I am debugging a Monessen millivolt gas valve. Apply a moderate amount of good quality pipe compound (Do not use Teflon tape) to pipe only, leaving two end threads bare. If another gas leak is detected, tighten adapter screws, joints, and pipe connections. On LP gas installation, use compound resistant to LP gas. This shuts off the pilot and main burner gas flow. Check the power supply rating on the valve and make sure it matches the available supply. 9. 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. Troubleshooting the valve and looking for known common issues will give you peace of mind by ensuring the safe operation of your Honeywell appliance. Ensure the ambient temperature does not exceed the ambient temperature ratings for each component. 0000027628 00000 n Hold down the gas control knob about one minute, then release. Refer to Fig. The generator, heated by the pilot burner flame, pro- . This decreases gas pressure under the second automatic valve diaphragm and repositions the valve disc further from the seat. To subscribe to this RSS feed, copy and paste this URL into your RSS reader. 0000001377 00000 n 0000039877 00000 n first the 360 millivolts you show should have been 750 to 800 millivolts since this is a pilot generator. on Honeywell VR8200, VR4200 Combination Gas Controls User Guide, Honeywell Humidity Controllers User Guide, Honeywell S8910U Universal Hot Surface Ignition Module User Manual. Gas valve troubleshooting looks for a problem. %PDF-1.5 % 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. 0000015409 00000 n <<50A7D4D2F74D8141B7F3BE8FD5737B51>]/Prev 36635>> rev2023.3.3.43278. Lv 4. 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. The gas valve part numbe read more 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. Refer to the Adjust the Pilot Burner Flame section. Your system is quite old and somewhat unsafe, in that the pilot comes off ahead of the safety valve. Tis the season. You may have to wiggle it a bit before it comes loose. Repeat after allowing the main burner to cool. millivoltage automatic valve operator, and optional gas pressure regulator. Two convenience terminals on top of control(optional). 7.). Combination 1/4 inch quick-connect and screw terminals (includes convenience terminals). The VS8421 Millivolt Gas Valve has a 60,000 Btuh capacity (1 in. 4. 0000003696 00000 n Set the thermostat or the device's controller slightly above the current room temperature. Install thermostat, and other controls as required. WIRINGFollow the wiring instructions furnished by the appliance manufacturer, if available, or use the general instructions provided below. This type of gas valve used a single thermocouple. The gas control knob is hard to turn or push down, or it fails to pop back up when released. This material is proprietary to Honeywell Limited and shall not be reproduced, copied or used in any manner without prior written consent of . Residential and Building Controls Division Customer Satisfaction. 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. A. Thermocouple-Only: Found in: Most gas log sets with standard safety pilot knob control. 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! Follow these warnings exactly: CAUTIONNever apply a jumper across or short the valve coil terminals. In this HVAC Furnace Video, I go over the Operation and Troubleshooting of a 750 Millivolt Gas Valve and Thermopile/PowerPile. Mount the gas control so gas flow is in the direction of the arrow on the bottom of the gas control. Thus the flow of gas through the second automatic valve is reduced, and outlet pressure falls to the desired level. The Robertshaw - Uni-Line 700-500 and 710-500 Series millivolt gas valves are thermostatically actuated com- bination gas valves. This increases gas pressure under the automatic valve and repositions the valve disc closer to the seat. 46 0 obj <>stream 13. Where the cost of an unexpected shutdown would be high, the system should be checked more ften. To ensure proper operation, follow these guidelines: Locate the gas control in the appliance vestibule on the gas manifold. 0000010088 00000 n The gas control must be manually reset. hb``b``r` LT, bBPQ%@AL;LiaP2l3 2 If outlet pressure begins to rise, the pressure regulator the diaphragm moves slightly higher, allowing less gas flow to the gas control outlet. The gas valve cannot be repaired in the field. IMPORTANT: The specifications given in this publication do not include normal manufacturing tolerances. By clicking Accept all cookies, you agree Stack Exchange can store cookies on your device and disclose information in accordance with our Cookie Policy. Thermopile readings: With all wires connected, with the pilot on and burners off, the thermopile reading at the TP & THTP terminals should be ~325mV. Dont touch any electrical switch or use the phone. endstream endobj 11 0 obj <> endobj 12 0 obj <> endobj 13 0 obj <>stream Assure thermocouple connection to the power unit is tightened 1/4 turn beyond finger tight. endstream endobj startxref Thanks. This is a very useful thread and am learning a lot from it partly because of my situation with my current Weil McClain boiler. And, it was very cost competitive to other non-Honeywell thermopiles. Contact your Honeywell sales representative to request a gas valve with corrosion-resistant construction. 0000026384 00000 n See Fig. inlet and 1/2 inch outlet; adapters available for 3/8 or 3/4 inch. Otherwise, take the necessary steps to provide proper gas pressure to the gas control. 0000139215 00000 n 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. Because gas is involved, problems with gas valves are a major safety concern. See Fig. 0000004302 00000 n If the inlet pressure is in the normal range (refer to Table 7 or 8), replace the existing gas control. 0000049228 00000 n 0000015431 00000 n Do NOT use Teflon tape. To learn more, see our tips on writing great answers. 0000034533 00000 n https://www.trutechtools.com/?affid=43 Use our Promo Code: \"acservicetech\" for 8% off your order! 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. Resistance between THTP & TP must be 10.0 W 0.2 W %%EOF Combination 1/4 inch quick-connect and screw terminals (includes convenience terminals), One 3/4 inch straight flange assembly (with O-ring and screws). Bubbles indicate a gas leak. To check for gas pipe leaks, put soap on the pipe connecting to the valve, if it bubbles, it means there's leakage. 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. 4 0 obj <> endobj Using Kolmogorov complexity to measure difficulty of problems? VR8200 for use with 24 Vac heating appliances and VR4200 for use with 120 . LP to natural gas conversion kit available for standard and slow-opening models. Before lighting, smell all around the appliance area for gas. Cycle the main burner several times, allowing at least 30 seconds between cycles for the regulator to resume the step function. 0000016105 00000 n The first automatic valve is closed. 0000005748 00000 n Since these environments can cause the gas control to deteriorate more rapidly, the system should e checked more often. 0000028651 00000 n The gas control is likely to have operated for more than 200,000 cycles. Do I need a thermal expansion tank if I already have a pressure tank? Force or attempted repair can result in fire or explosion. One Q340A 36-inch thermocouple with adapters and clip. 0000004689 00000 n To adjust the pilot flame: LIGHT MAIN BURNERFollow the appliance manufacturer instructions or set the thermostat setting above room temperature to call for heat. Your local Honeywell Residential and Building Controls Sales Office (check white pages of your phone directory). Replace the thermocouple if voltages are outside the acceptable range. SIT 822 Valve with a Honeywell Electronic Igniter NOTE: Remove glass before servicing. Except for the 123 mV this circuit is pretty well obvious. Zero clearance sleeve is required only for combustible walls. The first automatic valve opens, and the second automatic valve operator valve disc is lifted off its seal. Then tighten one more turn with a wrench. Remove seal over gas control inlet or outlet. JavaScript is disabled. 2 or 3) clockwise. Fig. You must log in or register to reply here. Do not exceed the input rating stamped on the appliance nameplate or manufacturer-recommended burner orifice pressure for the size orifice(s) used. If it is, simply replace the igniter/flame rod assembly. It looks like this: the thermopile is a generatorputs out up to 400 MV. WARNING!FIRE OR EXPLOSION HAZARDS CAN CAUSE PROPERTY DAMAGE, SEVERE INJURY OR DEATH.Do not disassemble the gas control; it contains no replaceable components. Failure to follow them could damage the product or cause a hazardous condition. 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. 0000018497 00000 n Thanks for that well-descriptive tips. DO NOT JUMPER THESE TERMINALS. Gas valves are not serviceable; the following are simple troubleshooting and description of how gas valves operate. Good Reading Bad Reading The VR8200 Continuous Pilot Dual Automatic Valve Combination Gas Controls are used in gas-fired, standing pilot appliances. If you smell gas, immediately shut off the manual valve in the gas piping to the appliance or, on LP, at the tank. Cover gas control if the appliance is cleaned with water, steam, or chemicals to avoid dust and grease accumulation. 8Proper use of wrench on gas control. 0000049205 00000 n OD tubing. Combination screw and quick-connect terminals on TRADELINE models. Both pilot and main burner are shut off.