%PDF-1.3 %âãÏÓ C $128.03. Thermopile Voltage Low Rheem Gas valves can be found on gas furnaces, gas fired steam boilers or hot water boilers, and gas-fired water heaters. SPECIFICATIONS Main Gas Connection: Valve: 3/8 in. FREE Shipping. thermopile terminals of gas valve. Frymaster Dean millivolt fryers use a pilot ignition system to control burner firing. When they replaced my gas valve it was $400, and I did the troubleshooting ahead of time. Millivolt Diaphragm/Solenoid Gas Valve. Most of the time, troubleshooting millivolt circuits is pretty easy. This type of gas valve used a single thermocouple. %PDF-1.2 This tip is about how to use a fancy digital stat on a millivolt system. 0000016504 00000 n Temperature Control Testing Total Millivolt Loss Test Set meter to 2 VDC. stream TROUBLESHOOTING MILLIVOLT GAS VALVES PART # … Save www.keatingofchicago.com. 0000012695 00000 n 098522-26 Thermostat Gas Control Valve. Pilot Gas Connection and Flow: pressure drop for straight-through configuration). If you see the result is under 400 millivolts, then it shows you with a poor thermopile. VS8420 The VS8420 Millivolt Gas Valve is compact and has a 60,000 Btuh capacity (1 in. Place one meter lead to soldered point on back of valve and one to ground. The thermopile puts out millivolts. Take reading at. The Thermopile, energized by the pilot flame, generates sufficient power to operate the gas valve and on/off switch. Assortment of millivolt gas valve wiring diagram. Thermostat Gas Control Valve. Page 1 of 1 Start over Page 1 of 1 . One occasional symptom I find is a pilot generator that gives a nice read under no load, but drops to zero under any kind of load. Thermopile readings:With all wires connected, with the pilot on and burners off, the thermopile reading at the TP & THTP terminals should be ~325mV. There should not be a flame-up there if the valve is working correctly. ).#���.�s�h�3��qF$]��Р6�E�9.6�����Ds2�z ]��9Π\B���#p`9��Spd9ǖ81�)\+��m��m���,�mA�r,�mAh8Aۂ�r �-�m�U��6q+��[�+�e�r��[�,�h���m�Œ��Œ6�waF�Ľ0�oſ0���`��f�0��V\s�fgm'Ì�/Ì6��aF���0���h�ѷ�i�s�Y\ 3�,���lsn�l���6��aF���0���p��f�8�m�Ì6��a���Ì6��a.ۜ[.��,cl��aF����9���z��f�=�h�8f�Y�3�,�m��\�9�\���fqA�h�� f�qB��"^�m7Č6�bƘG�-≘�E\qXjq��fqF�h�x#f\qG��"��Z�!1��⑘�fqI��,>��B�s��Y�qK�h��%f�Y3��x&fh��-⛈˚+Ήm��\�9��k!��Z�A1C�x(f�Y\3�,>����⤘q-�K1C��)fh?�-⨘K-βj �S1g�����uJWpd9 ǖCpb9��cpf9�K-�2���b���a��@3���b��T��"��Z�S1C�x*fhO�\jq��E3�]F��S1C�x*fhO�-⩘�E3���b��T̥gZ�S����04��b��T��"��Z�S1C�x*fhO�-⩘K-�9�g���ahOŌk'���S1C�x*fhO��⩘�Q34��b����ǐ)�ahO��⩘�Q34��b�F�T��(���S1C�x*fhL�ax�@34��b�F�T��(���S1C�x*fhO�-⩘�EqTjq��E3���b��T��"��Z�S1�ډ�b�F�N�И喡1s��Ud�e�;1C�x'fh���❘�Q�34�wb�F�N��(މsg�F�d��Q�34�wb�F�N��(މ�;1C�x'fh���❘��9��<2�3��!8��#�18����)8���3�9�YV�2�c����ah���⑘�Q34�Gb�F�H��(��#1C�x$fh;��6�Gb�F�H��(^��1C�x!fh/��⅘�Q�34F����d*h�1C�xfh����y��Q34��!�F����8�w�)�ah����m��Q� 34��a�F�6��(ކ��0CcZ��$2�$SD��(ކ��0C�xfh���a��Q34��a��4��ib�I����Q� If the reading is higher,magnet is defective therefore Change the Valve - Do not try to repair. $158.88 $ 158. 0000004941 00000 n 0000018745 00000 n Millivolt thermostat mechanism. Robertshaw Millivolt Gas Valve, 250 Millivolt To 750 Millivolt Manufacturer: Robertshaw Manufacturer Part Number: 700-503 New (8) from $165.53 & FREE Shipping. 0 %%EOF 0000006973 00000 n «A1ƒ/¯‡ƒ{‹›;_FeÃõ ›Ûo(*ôê=î`. This is the lower part, which is the Millivolt gas valve: This show 2 schematics, the upper is a 24 volt gas valve, which I am assuming was optional on this furnace: Last edited: Oct 25, 2010. 0000012919 00000 n Fireplace Remote Control WiFi Smart Switch ON/Off to Voice Activated Fireplace - 2 Wire Quick Connect for Easy installation for Millivolt Gas Valve… 0000006677 00000 n Turn off the gas supply valve to your appliance to test whether your valve is capable of shutting down properly. 0000001116 00000 n 0000002167 00000 n Check thermopile with millivolt meter. 0000027369 00000 n <> 0000018497 00000 n Furnace gas valves are wired to an electronic component known as a solenoid, which receives signals from the thermostat control. 0000017288 00000 n pressure drop for straight through configuration). CONTROLS COMPANY Uni-Line North America MILLIVOLT SYSTEMS and TROUBLESHOOTING MILLIVOLT GAS VALVES The Robertshaw - Uni-Line 700-500 and 710-500 Series millivolt gas valves are thermostatically actuated com- bination gas valves. 67 product ratings - Robertshaw Millivolt Gas Valve 710-502, 7000MVRLC, Standard Opening, 70, 000 BTU. The design makes it ideal for fireplace and space heating applications that are ventfree (unvented). Circuit Millivolt Check Symptom - Intermittent shutdown or main burner will not light with on/off switch. 0000003926 00000 n The VS, VS Millivolt Gas Valves are compact and have a . Flameworks TM Gas Valves Installation Manual Millivolt 3 Volt The Flameworks TM ga vsalsvaeer desigd naen d enginered fo ar widveairte yo flo wcapa acni dty limd istpea acpeplic Aal FtlliaowmnoeksrsT.M gas valves include, depending on model specifications; a gas cock, pilot outlet, pilot safety valve, pilot gas filter and pilot If you open the access panel on your gas fireplace (usually on the bottom), you’ll see the fireplace’s gas plumbing, the gas valve itself, and a bunch of wires. The millivolt generator will produce about 350 millivolts when not connected to a device. Gas valves are not serviceable; the following are simple troubleshooting and description of how gas valves operate. 14513 Millivolt Gas Control Valve. It is necessary to hold your gas control knob in the pilot position, repeat this test. This valve is only for ventfree (unvented) applications. Its design makes it ideal for fireplace and space heating applications. This causes the gas valve to widen or narrow in front of the pilot light to respond to changes in building temperature. This type gas valve is used for floor furnaces,deep fryers, roofing equipment, etc. +���):�P��R��9��`�. SPECIFICATIONS 14389 Millivolt Gas Control Valve. 14390 Millivolt Gas Control Valve. Yes Replace Gas Valve No Set Gas Valve Knob to PILOT position. Place one probe on PP-TH and the other probe on TH. or Best Offer. If the pilot goes out then the gas valve will close, stopping the flow of gas to the burner. Locate the hot surface igniter and look for a spark or glow there. Also found in certain gas space heaters and construction-site portable heaters. Only 19 left in stock - order soon. 1.7 Troubleshooting and Problem Isolation 1-8 1.7.1 Pilot Failures 1-10 1.7.2 Improper Burner Functioning 1-11 ... An electromechanical millivolt gas valve regulates gas flow to the burner manifold. 0000008225 00000 n Other types of gas valves include the standing pilot gas valve. NPT thread. 098522-25 Thermostat Gas Control Valve. 0000001377 00000 n 4.7 out of 5 stars 5. The illustration is the interior of a common two wire heat-only household thermostat, used to regulate a gas-fired heater via an electric gas valve. @H(��[�P0Ej{���G)����B@^��Q��j��Zi�Z�����?�����Q?���9c��\s��s�5Ϲ�β lw�l�mB�#vI��:A�>���;��~��q�ڧm�8���0̗9��N������_j�5g����T?u�Ħ�����ڧA�2l��'���v��w��;�L�G�ˢ�O������� gh;:�:��}�DŮ�S��_)";D^����@�����M��u�3��N)(�S��H�-��Fi'Q��DJy�Ž�#ʅ\�NQ��)�(ҷ=J��H[��:�������)��2"U��:��[W''��N�(Q Gas Valve Troubleshooting - Gas valves used in a modern state of the art residential gas furnaces are typically controlled via a state of the art electronic ignition control or a printed circuit board. 0000000016 00000 n This simple system uses a thermopile to generate all the power that is needed to operate the gas valve. 0000006141 00000 n Good Reading Bad Reading 34�Wa�F�*��(^�ū0C�xfhO��Yb��0 C�xfhO���I��Q< 34�'a�F�$��(����24�ax*���F���(ރ�{0C�xfh����1��Q34��24:g�J�v�ph9G�#pl9'�pj9�3���e 0000023456 00000 n 0000028590 00000 n 0000003373 00000 n Move heater rocker switch to ON. �W!/RZ�2��Nze�uB�H[�uJ���M_'�DN�V�:e��8���D�O�T�?i��1~"����(��N���?��HƂ�#ҖF"����(�ލB"%EN��^�(��ލyq��-(�:�Z�� ��+u��"mA�)��!��d��:iO�1�� N�QW|O�%#B��Q\�R��t�4J�N% �4J�5�%&B��QR"D��#JN�(�H��"�R誑�(��W'�Rh����4&ҫZܧ=r��E��IGXQwꤣ��:���HS'�E�I[Z�:iK�>������5�]Q�:iK�kQ'mi�iK��S'��"��wJ�!ҖױN��"/�I[Z\�:io��F1"'D��!rF��9"�:�.+j`�4r1~ꤑ�*^'�\��:i䢊�w^1���)"gD��!���ލ2F�)D�RH�)EDN)�S�� "�D�RF�*�D�����WT�:�J�~ZQ�뤊���N���'uRE�=ԣ���ǥ�A�U�rFVsF�V܈���EA'��_nPFXuF�Xܸ���ab�2jrpafPe��A�:���QǠvtT�Q��G�A��(6�%���A|pf�3��`gP?8�����Р~p�nj�~p��A����A|pnPA��'�T?8 �'�A��$2��%� �'�A|pjP/K�1"�%�A|�3��v���A�,ihP?8�s�46��I�ڜ45��dќ� ��js�#e�A���9YdPL��d�A�XYj���2��B0�9ΠvIѵ�ڜ�k�K <<50A7D4D2F74D8141B7F3BE8FD5737B51>]/Prev 36635>> 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. 0000005081 00000 n A lot of gas stoves use 2 heat generating thermo sources. 0000016758 00000 n 0000016980 00000 n 0000010874 00000 n Voltage drop across the switch terminals Burner on: 35 mv or less. 098522-28 Thermostat Gas Control Valve . 0000002263 00000 n 0000028639 00000 n The millivolt generator in your gas fireplace has a gas valve that requires a minimum of 250 millivolts to keep the valve open. pressed in pilot position and wall switch "Off". Lennox OEM SIT Millivolt Gas Valve - NG (H1657) - Original OEM Part. 0000001836 00000 n 44 0 obj <>stream More items to explore. 4 41 3. Replace. Turn off the furnace at the wall control. With the burners on, the millivolt reading should be ~200mV. %�쏢 hÞb``Pc``™Á •_Ps400„†! The automatic pilot safety is separa te from gas cock and provides shutoff in case of pilot outage. While taking a Millivolt reading on a safety magnet, disconnect thermocouple & wires from the valve. Previous page. 0000002119 00000 n 1. From United States. 700-506 700 Millivolt Series Gas Valves 700 Series - Millivolt The Robertshaw® 700 Series Millivolt Gas Valves are wall thermostat actuated combination controls which provide installation flexibility from furnaces to swimming pool applications. Should read 250-300. millivolts (minimum 150) while holding valve knob de-. Measure the milliovolts, and trust the results. A wiring diagram is a simplified standard photographic depiction of an electric circuit. If it reads more than 400 millivolts, then it shows you with a good thermophile output for your device. Dean Millivolt Gas Fryers Service and Parts Manual TABLE OF CONTENTS Page # 1. 0000011836 00000 n 0000012806 00000 n 0000002201 00000 n 5 0 obj Resistance between the THTP & TH terminals must be 11.5 ±0.2 2. 0000023014 00000 n 0000026384 00000 n xref jT�a���)@��(VJ�r��Na���Jy�"��i�Ϭ�S Though the article addresses adding a transformer and operating the gas valve through the contacts of an isolation relay there are digital thermostats that can be setup for milivolt systems just with the thermostat battery. 0000027628 00000 n But sometimes it's not that easy. trailer Good reading is 0 to 0.2 Ohms . These controls combine a manual gas cock, automatic pilot safety valve and a millivolt operator. Turn the test control on the multimeter to 'mV,' which stands for millivolt. It reveals the elements of the circuit as simplified shapes, and the power and also signal connections between the devices. You'll find a pilot that wont stay lit, measure the millivolts across the gas valve and get zero. Pull the wires off the gas valve terminals. Topics will include: proper sizing for gas ... Millivolt Control Valve (Vent Free) faulty thermopile if reading is below specified minimum. 0000001317 00000 n C $234.02. 0000007638 00000 n x�՝�]Uu�w����/"W�vk}$ф��k"%"D���! g؁��T2U3����Q34�g`�F���(ހ�0CcX�F���Ɔ�d�e�0C�xfh�����Q. 0000013008 00000 n pressure drop for straight through configuration).