Refer to Fig. 0000016758 00000 n PRESSURE TAPPING: Inlet and outlet pressure taps accessible from the top of gas control. I show you how to Light the Pilot and Power the Main Burner! The boiler comes on twice a day - morning and night. If above 11 ohms, replace the gas control. If you have not I will give some ideas. 2, 3 and 11, 12. 0000002758 00000 n 0000001317 00000 n Fig. Repeat after allowing the main burner to cool. Replace the thermocouple if voltages are outside the acceptable range. Troubleshooting Honeywell Millivolt Valve, Troubleshooting the Gas Control System, Troubleshooting the Gas Control System, Vermont Castings, Majestic Products: DVR33, SYMPTOM POSSIBLE CAUSES CORRECTIVE ACTION 0000007857 00000 n Free shipping for many products! Why are physically impossible and logically impossible concepts considered separate in terms of probability? Check the wiring between the thermocouple and the gas control valve operator. Intermittent use. If something is wrong with the internal components of the gas valve, the gas valve should be replaced. Your email address will not be published. 5. Do not remove seals until ready to connect piping.Follow the appliance manufacturer instructions if available; otherwise, use the instructions provided below. There is a heat anticipator coil in there which limits current to the valve, and shorting that out can damage the valve. 0000027628 00000 n If the pilot flame goes out, turn the gas control knob clockwise, If the pilot flame remains lit, turn the gas control knob counterclockwise. Now I'm sure my problem's the thermopile. But it has been reliable for a long time. 0000042992 00000 n xref 0000049228 00000 n 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. This category contains Honeywell SmartValve, Gas Controls, Millivolts, Pressure Regulators, Gas Control Parts and Industrial Gas Valves. Install the Q340A asfollows: Connect ThermocoupleConnect thermocouple lead as shown in Fig. For your safety, read the following warnings before lighting the appliance: WARNING: BEFORE DOING ANY GAS CONTROL SERVICE WORK, REMOVE GLASS FRONT. Safety shutoff or pilot gas proves complete shutdown since the safety shutoff valve permits main burner and pilot gas flow. TO LIGHT THE PILOT BURNERSTOP! Do not make sharp bends or deform the tubing. 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. You can test the rest of the system by temporarily replacing the generator with a 1.5 volt standard flashlight battery. All adjustments, wiring connections, and pilot outlets are accessible from the top of the gas control. The PILOT position allows pilot burner gas flow only. cut tubing to the desired length and bend as necessary for routing to pilot burner. Where these instructions differ from the appliance manufacturer, follow the appliance manufacturer instructions.All wiring including 1/4 in. This decreases gas pressure under the second automatic valve diaphragm and repositions the valve disc further from the seat. If the reset button does not pop up when released, stop immediately and call your service technician or gas supplier. 0000072676 00000 n If an adapter is used, place the wrench on the adapter rather than on gas control. Standard-, slow- and step-opening models available. 0000011045 00000 n It only takes a minute to sign up. 0000007638 00000 n Step-Opening Pressure Regulation (VR8200C,P andVR4200P)Step-opening gas controls actually combine two pressure regulators, one for the low pressure and one for the full-rate pressure. Attempted disassembly or repair may damage the gas control. Note that using an adapter increases the overall length of the gas control. Except for the 123 mV this circuit is pretty well obvious. 0000044882 00000 n Voltage drop across the switch terminals Burner on: 35 mv or less. 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. a. 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 It may not display this or other websites correctly. 0000026384 00000 n 0000039877 00000 n 6. Models for natural or LP gas. When making the conversion, the main pilot burner orifices must be changed to meet the appliance manufacturer specifications. I recommend you call a heating expert. 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. This is an electrical connection and must be clean and dry. And after two or so minutes, the gas chambers will be lit. Adjust the thermostat several degrees higher than your current room temperature. (50/60 Hz models available on request. The internal valve coil must then be connected to the topmost and bottommost of the four terminals. Yes, there is one screw to adjust the gas to the pilot and another to adjust the gas to the main burner. Oa$2vlmmpTx{>z)~pc|N*ona0 Minimum regulated capacity is 20 feet 3 /hour [0.6 meters 3 /hour]. PROVIDE DISCONNECT MEANS AND OVERLOAD PROTECTION AS REQUIRED. Push tubing into the pilot gas tapping on the outlet end of the control until it bottoms. Dusty, wet, or corrosive environment. If you have additional questions, need further information, or would like to comment on our products or services, please write or phone: BODY PATTERN: Straight-through with 1/2 inch inlet and 1/2 inch outlet. . I have some pictures to help clarify what I have, a ThermoPILE system. 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. Bubbles indicate a gas leak. I was just wondering about this the other day. 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. Check the power supply rating on the valve and make sure it matches the available supply. On LP gas installation, use compound resistant to LP gas. Refer to Table 7 or 8 for factory-set nominaloutlet pressures and adjustment ranges. endstream endobj 11 0 obj <> endobj 12 0 obj <> endobj 13 0 obj <>stream The pilot must be manually relit when normal burner operation is desired. 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. The main burner should go off and the pilot should remain lit. At least having yours done professionally would appear to put you in a position of a tax deduction for repairing it. Natural to LP gas conversion kit available for nonTRADELINE standard and slow-opening models. Connect and share knowledge within a single location that is structured and easy to search. Helping You to Do It Yourself! Determine if the pilot burner requires a thermocouple with a push-in clip or attachment nut, and attach the correct adapter to the. inlet and 1/2 inch outlet; adapters available for 3/8 or 3/4 inch. This increases gas pressure under the automatic valve and repositions the valve disc closer to the seat. Your system is quite old and somewhat unsafe, in that the pilot comes off ahead of the safety valve. 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. 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.
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