Honeywell VR8300A User's Manual
Contents
1. Converting Between Natural and LP Gas WARNING Fire or Explosion Hazard Can cause property damage severe injury or death 1 Do not use a gas control set for natural gas on LP gas or a gas control set for LP gas on natural gas 2 When making the conversion the main and pilot burner orifices MUST be changed to meet the specifications of the appliance manufacturer Standard or slow opening gas controls can be converted from one gas to another To convert from natural gas to LP use the 393691 LP Conversion Kit that is included with the VR8300A Gas Control To convert from LP to natural gas use the 394588 Natural Gas Conversion Kit order separately Step opening gas controls cannot be con verted To convert the control from one gas to another 1 Turn off the main gas supply to the appliance 2 Remove the regulator cap screw and pressure regulator adjusting screw See Fig 5 3 Remove the existing spring 4 Insert the replacement spring with the tapered end down See Fig 1 5 Install the new plastic pressure regulator adjustment screw so that the top of the screw is flush level with the top of the regulator Turn the pressure regulator adjustment screw clockwise TX six complete turns This provides a preliminary pressure setting of about 10 0 in wc 2 5 KPA for an LP regulator and a 3 5 in wc 0 9 KPA for a natural gas regulator 6 Check the regulator setting with a manometer or by clocking the gas meter2. See the Startup and Checkout section Install the new cap screw Mount the conversion label on the control Install the control and the appliance according to the appliance manufacturer instructions ooN Install Adapters to Gas Control If installing adapters on the gas control mount them as follows Flanges 1 Choose the appropriate flange for your application 2 Remove the seal over the gas control inlet or outlet 3 Ensure the O ring is fitted into the groove of the flange If the O ring is not attached or is missing do not use the flange 4 With the O ring facing the gas control align the screw holes on the gas control with the holes in the flange Insert and tighten the screws provided with the flange See Fig 2 Tighten the screws to 25 in lb of torque to provide a gas tight seal VR8300A CONTINUOUS PILOT COMBINATION GAS CONTROL COLOR CODE FOR NATRUAL SR Gas Gas CAP SCREW BLACK SILVER PRESSURE REGULATOR ADJUSTING WHITE SCREW A TAPERED VAR SPRING WHITE STAINLESS STEEL PRESSURE REGULATOR HOUSING M16015 Fig 1 Install conversion kit in regulated gas control Bushings 1 Remove the seal over the gas control inlet or outlet IMPORTANT On LP installations use a compound resistant to LP gas Do not use Teflon tape 2 Apply moderate amount of good quality pipe compound to bushing leaving two end threads bare 3 Insert bushing in gas control and thread
3. 2 Mount the gas control so the gas flow is in the direction of the arrow on the bottom of the gas control 3 Thread pipe the amount shown in Table 4 for insertion into the gas control Do not thread pipe too far Valve distortion or malfunction can result if the pipe is inserted too deeply into the gas control See Fig 3 SUPPLY RISER PIPED GAS 76 MM SUPPLY MINIMUM TUBING GAS SUPPLY A ALL BENDS IN METALLIC TUBING SHOULD BE SMOOTH A CAUTION SHUT OFF THE MAIN GAS SUPPLY BEFORE REMOVING END CAP TO PREVENT GAS FROM FILLING THE WORK AREA TEST FOR GAS LEAKAGE WHEN INSTALLATION IS COMPLETE M3077 Fig 3 Sediment trap installation TWO IMPERFECT THREADS GAS CONTROL THREAD PIPE THE AMOUNT SHOWN IN TABLE FOR INSERTION INTO GAS CONTROL APPLY A MODERATE AMOUNT OF PIPE COMPOUND TO PIPE ONLY LEAVE TWO END THREADS BARE M3075B Fig 4 Use moderate amount of pipe compound Table 4 NPT Pipe Thread Length in in Pipe Thread Pipe Maximum Depth Pipe can Size this Amount be Inserted into Control 69 0668 1 IMPORTANT On LP installations use compound resistant to LP gas Do not use Teflon tape 4 Apply a moderate amount of good quality pipe compound DO NOT use Teflon tape to pipe only leaving two end threads bare On LP installations use compound resistant to LP gas 5 Remove seals over the gas control inlet and outlet if necessary 6 Connect the pipe to the ga
4. Burner Flame section to resume normal operation VR8300A CONTINUOUS PILOT COMBINATION GAS CONTROL 11 69 0668 1 Honeywell Home and Building Control Honeywell Inc Honeywell Plaza P O Box 524 Minneapolis MN 55408 0524 69 0668 1 J S Rev 6 98 Home and Building Control Honeywell Limited Honeywell Limit e 155 Gordon Baker Road North York Ontario M2H 3N7 Printed in U S A on recycled paper containing at least 10 post consumer paper fibers www honeywell com
5. the 0 70 rating stamped on valve operator 69 0668 1 VR8300A CONTINUOUS PILOT COMBINATION GAS CONTROL Table 5 Maximum Length of Supplementary Limit Leadwires in in m When Using Q340A Thermocouple Maximum Leadwire Length x 2 Wires Thermocouple Length AWGNo 14 AWGNo 16 AWG No 18 BEC EE EE NE EE NS NS ES BR ER GG AE o ES A A A EE EE ES a a A ER a Table 6 Maximum Length of Supplementary Limit Leadwires in in m When Using Q390 Q340 Thermocouple Maximum Leadwire Length x 2 Wires START UP AND CHECKOUT Perform Gas Leak Test WARNING A WARNING Fire or Explosion Hazard Fire or Explosion Hazard a Can cause property damage severe injury Can cause property damage severe injury or death or death 1 Do not force the gas control knob Use only Check for gas leaks with rich soap and water your hand to push down the reset button or solution any time work is done on a gas control turn the gas control knob Never use any tools 2 Ifthe gas control knob or reset button does Gas Leak Test not operate by hand or if the reset button 1 Paint the pipe connections upstream of the gas stays depressed after it is released the gas control with a rich soap and water solution Bubbles control should be replaced by a qualified indicate a gas leak service technician 2 If aleak is detected tighten the pipe connection 3 Stand clear while lighting the main burner to prevent Gas Control Knob Settings injury
6. Honeywell VR8300A Continuous Pilot Combination SUPER TRADELINE APPLICATION These continuous pilot gas controls are used in gas fired appliances with capacities up to 200 cfh at 1 in wc pressure drop 5 7 cmh at 0 25 kPa on natural gas Included are a manual valve safety shutoff two automatic operators and a pressure regulator See Table 2 for temperature range and regulator type The VR8300 setup for natural gas includes a 39369 LP Conversion Kit The kit contains a new cap screw a pressure regulator adjustment screw a tapered spring and a conversion label The control must be equipped with a standard servo pressure regulator Step opening gas controls cannot be converted Capacity Gas Control INSTALLATION INSTRUCTIONS Body Pattern Straight through body pattern Inlet x Outlet Sizes Available 1 2 x 1 2 in 1 2 x 3 4 in and 3 4 x 3 4 in factory installed inlet flange Adapters Adapters available for 1 2 and 3 4 in straight and angle connections Refer to Table 3 Electrical Ratings Voltage and Frequency 24 Vac 50 60 Hz Current Draw 0 70A Capacity at 1 in wc Minimum Regulated Maximum Regulated Size Inlet x Outlet Pressure Dropa Capacity Capacity 1 2 in x 1 2 in 180 cfh 5 1 cmh 30 cfh 0 8 cmh 225 cfh 6 4 cmh 1 2 in x 3 4 in 190 cfh 5 4 cmh 30 cfh 0 8 cmh 290 cfh 8 2 cmh 3 4 in x 3 4 in 200 cfh 5 7 cmh 30 cfh 0 8 cmh 300 cfh 8 5 cmh aCapacity based on 1000 Btu
7. caused from hidden gas leaks that could cause flashback in the appliance vestibule Light the The gas control knob has three settings main burner oo OFF prevents pilot and main burner gas flow 4 With the main burner in operation paint pipe joints PILOT permits pilot gas flow only Gas control knob including adapters and gas control inlet and outlet must be held depressed or thermocouple must be with rich soap and water solution heated sufficiently to hold the safety control valve 5 If another leak is detected tighten the adapter open screws joints and pipe connections ON permits main burner and pilot gas flow Thermostat 6 Replace the part if gas leak cannot be stopped and gas control the main burner gas flow NOTE Gas controls are shipped with the gas control knob in the ON position 69 0668 1 6 VR8300A CONTINUOUS PILOT COMBINATION GAS CONTROL Light Pilot Burner Flame 1 Turn the gas control knob clockwise 7N to OFF Wait five minutes to dissipate any unburned gas Sniff around the appliance near the floor Do not relight the pilot flame if you smell gas 2 Turn the gas control knob counterclockwise N to PILOT Push down and hold the gas control knob while lighting the pilot flame 3 Hold the gas control knob down about one minute then release a If the pilot flame goes out turn the gas control knob clockwise N to OFF and repeat steps 1 through 3 b If pilot flame remains lit turn the gas co
8. cu ft 0 64 specific gravity natural gas at 1 in wc pressure drop 37 3 MJ cu m 0 64 specific gravity natural gas at 0 25 kPa pressure drop Use conversion factors in Table 1 to convert capacities for Table 3 Flange Part Numbers other gases PartNumber Number Inlet Outlet Flange RTC Hex Pipe Size Type Wrench 1 2in NPT Straight 393690 6 393690 16 Table 1 Gas Capacity Conversion Factors Tou om SRT Gravity Capacity By Manufactured 060 ose Table 2 Temperature Range and Regulator Type Ambient Model Temperature Range F Number 393690 3 393690 13 3 4in NPT Straight 393690 4 393690 14 393690 5 393690 15 NOTE Flange kits include one flange with attached O ring and fan mounting screw Regulator Type Approvals International Approval Services Listed L2025007 Australian Gas Association Certificate Applied for Delta C Pending approval 69 0668 1 lt a U S Registered Trademark Copyright 1998 Honeywell Inc All Rights Reserved VR8300A CONTINUOUS PILOT COMBINATION GAS CONTROL INSTALLATION When Installing this Product 1 Read these instructions carefully Failure to follow them could damage the product or cause a hazard ous condition 2 Check the ratings given in the instructions and on the product to make sure the product is suitable for your application 3 Installer must be a trained experienced service technician 4 After installation is c
9. d below and behind the gas control Find the pilot burner by following the metal tube from the gas control The pilot burner is between the two burner tubes behind the pilot burner access panel 69 0668 1 Turn the gas control knob counterclockwise to PILOT 9 Push and hold the gas control knob all the way in 11 12 13 14 15 Immediately light the pilot burner flame with a match and continue holding in the gas control knob for one minute after the pilot burner flame is lit Release the gas control knob until it pops back up The pilot burner flame should remain lit If pilot burner flame goes out repeat steps 1 through 10 a If the gas control knob does not pop up when released stop immediately and call your service technician or gas supplier b If the pilot flame does not stay lit after several attempts turn the gas control knob to OFF and call your service technician or gas supplier Turn the gas control knob counterclockwise 7 to ON Replace the pilot burner access panel Replace the gas control access panel Reconnect all electric power to the appliance Set the thermostat to the desired setting Turning Off Appliance Vacation Shutdown Set the thermostat to the desired room temperature while you are away Complete Shutdown Push the gas control knob in slightly and turn clockwise NX to OFF Do not force Appliance completely shuts off Follow the steps in Lighting the Pilot
10. derations are Cycling frequency Appliances that may cycle 100 000 1 Place the gas control knob in the PILOT position Main burner should go off and pilot should remain lit 2 Extinguish the pilot flame Pilot gas flow should stop within 2 1 2 minutes Safety shutoff of pilot gas proves complete shutdown since safety shutoff valve prevents main burner and pilot gas flow 3 Relight pilot burner and operate system through one complete cycle to ensure all controls operate properly times annually should be checked monthly Intermittent use Appliances that are used seasonally should be checked before shutdown and again before the next use Consequence of unexpected shutdown Where the unexpected shutdown is costly the system should be checked more often Dusty wet or corrosive environment In these environ ments the gas control can deteriorate more rapidly so the system should be checked more often MAINTENANCE The gas control should be replaced if It does not perform properly on checkout or trouble A WARNING shooting The gas control knob is hard to turn or push down or it Fire or Explosion Hazard fails to pop up when released Can cause property damage severe injury The gas control is likely to have operated for more than or death 200 000 cycles Improper cleaning or reassembly can cause gas leakage When cleaning ensure that control is reassembled properly and perform gas leak test Table 7 Pressu
11. k is detected replace the old compression fitting or tighten the newly installed one See Fig 5 c Make sure that the pilot burner tubing or pilot burner orifice is not clogged If Pilot Burner Flame Goes Out when Gas Control Knob is Released 1 Make sure the gas control knob is held in at least one minute to allow the thermocouple time to heat 2 Check the pilot burner flame adjustment Refer to Adjust the Pilot Burner Flame section 3 Check the wiring between the thermocouple and the gas control valve operator 4 Make sure that the thermocouple connection to the power unit is tightened 1 4 turn beyond finger tight 5 If pilot burner flame goes out measure the open and closed thermocouple output voltage Compare it to the acceptable range charts in the thermocouple specifications or in the Gas Controls Handbook Replace the thermocouple if voltages are outside the acceptable range 6 Check the power unit resistance If it is above 11 ohms replace the gas control If Main Burner does not Come on with Call For Heat 1 2 3 Make sure the gas control knob is in the ON position Adjust the thermostat several degrees above the room temperature Use an ac voltmeter to measure the voltage across terminals TH and TR If a No voltage is present check the control circuit for proper operation b 24 Vac is present but first operator did not click open check for excessive inlet gas pressure If inlet gas pre
12. n firmly to ensure proper operation 69 0668 1 VR8300A CONTINUOUS PILOT COMBINATION GAS CONTROL Regular preventive maintenance is important in applica tions that place a heavy load on system controls such as in the commercial cooking and agricultural and industrial industries because In many such applications particularly commercial cooking the equipment operates 100 000 200 000 cycles per year Such heavy cycling can wear out the gas control in one to two years e Exposure to water dirt chemicals and heat can damage the gas control and shut down the control system 4 If the desired outlet gas pressure or gas flow rate cannot be achieved by adjusting the gas control check the gas control inlet pressure using a manometer at the inlet pressure tap If the inlet pressure is in the normal range refer to Table 7 or 8 replace the gas control Otherwise take the necessary steps to provide proper gas pressure to the gas control Check Safety Shutdown Performance WARNING Fire or Explosion Hazard Can cause property damage severe injury or death Perform the safety shutdown test any time work is done on a gas system The maintenance program should include regular check out of the gas control as outlined in the Startup and Checkout section and the control system as described in the appliance manufacturer literature Maintenance frequency must be determined individually for each application Some consi
13. n replace the control Force or attempted repair can result in a fire or explosion 5 The gas control is a safety device it must be replaced in case of any physical damage such as bent terminals missing or broken parts stripped threads or evidence of exposure to heat 69 0668 1 VR8300A CONTINUOUS PILOT COMBINATION GAS CONTROL IMPORTANT Follow the operating instructions provided by the manufacturer of your heating appliance The information below is for a typical gas control application but the specific controls used and the procedures outlined by the manufacturer or your appliance may differ requiring special instruc tions Lighting the Pilot Burner Flame STOP READ THE WARNING ABOVE The pilot burner flame must be lit manually If the pilot burner flame has gone out follow these instructions exactly 1 Set the thermostat to its lowest setting 2 Disconnect all electric power to the appliance 3 4 Push in the gas control knob slightly and turn Remove the gas control access panel clockwise N to OFF NOTE The gas control knob cannot be turned from PILOT to OFF unless it is pushed in slightly Do not force the gas control knob Wait five minutes to clear out any unburned gas If you then smell gas STOP Follow the instructions in step 3 IF YOU SMELL GAS section in the Warn ings listed If you do not smell gas continue with the next step Remove the pilot burner access panel locate
14. nergy cutoff ECO is used insert the ECO connector order part no 394332 as shown in Fig 8 and then connect the thermocouple lead Otherwise insert the thermocouple lead directly This is an electrical connection and must be clean and dry Never use pipe compound Tighten only 1 4 turn beyond finger tight to give good electrical continuity Do not overtighten Wiring CAUTION Hazardous Voltage Can cause personal injury or equipment damage Disconnect power supply before installing or servicing All wiring must comply with applicable electrical codes and ordinances HIGH LIMIT CONTROLLER L1 A OPTIONAL CONVENIENCE GAS CONTROL TERMINALS A POWER SUPPLY PROVIDE DISCONNECT MEANS AND OVERLOAD PROTECTION AS REQUIRED A DO NOT JUMPER THESE TERMINALS THIS SHORTS VALVE COIL AND CAN BURN OUT ANTICIPATOR IN THERMOSTAT A CONVENIENCE TERMINALS SERVE ONLY AS A TIE POINT THEY ARE NOT INTERNALLY WIRED TO THE CONTROL CIRCUIT OR TO GROUND A OPTIONAL HIGH LIMIT M2915 Fig 9 Wiring connections for 24V control Refer to the appliance manufacturer instructions if available or use the following procedure 1 Check the power supply rating on the gas control and make sure it matches the available supply Install the transformer thermostat and other controls as required 2 Connect the control circuit to the gas control terminals See Fig 5 and 9 3 Adjust the thermostat heat anticipator to
15. nt gas control high enough above the cabinet bottom to avoid exposure to flooding or splashing water Make sure the ambient temperature does not exceed the ambient temperature ratings for each component Cover gas control if appliance is cleaned with water steam or chemicals or to avoid dust and grease accumulation Avoid locating gas control where exposure to corrosive chemical fumes or dripping water is likely Locate the gas control in the appliance vestibule on the gas manifold In replacement applications locate the gas control in the same location as the old gas control Install Piping to Gas Control All piping must comply with local codes and ordinances or with the National Fuel Gas Code ANSI Z223 1 NFPA No 54 whichever applies Tubing installation must comply with approved standards and practices 1 Use new properly reamed pipe free from chips If tubing is used make sure the ends are square deburred and clean All tubing bends must be smooth and without deformation 2 Run pipe or tubing to the gas control If tubing is used obtain a tube to pipe coupling to connect the tubing to the gas control 3 Install sediment trap in the supply line to the gas control See Fig 3 69 0668 1 VR8300A CONTINUOUS PILOT COMBINATION GAS CONTROL Install Gas Control To install 1 Mount the gas control 0 to 90 degrees in any direction from the upright position of the gas control knob including vertically
16. ntrol knob counterclockwise 7 to ON Adjust Pilot Burner Flame The pilot flame should envelop 3 8 to 1 2 in 10 to 13 mm of the thermocouple tip See Fig 10 To adjust the pilot flame 1 Remove the pilot adjustment cover screw See Fig 5 2 Turn the inner adjustment screw clockwise 7N to decrease or counterclockwise 7 to increase the pilot flame 3 Always replace the cover screw after adjustment and tighten firmly to ensure proper operation Light Main Burner Follow the appliance manufacturer instructions or set the thermostat setpoint 10 F 6 C above the room tempera ture to call for heat PROPER FLAME ADJUSTMENT 3 8 TO 1 2 IN 10 TO 13 MM NS THERMOCOUPLE M3086B Fig 10 Proper flame adjustment Check and Adjust Gas Input to Main Burner A CAUTION Do not exceed the input rating stamped on the appliance nameplate or the manufacturer recommended burner orifice pressure for the size orifice s used Make sure the main burner primary air supply is properly adjusted for complete combustion Follow the instruc tions of the appliance manufacturer 2 IF CHECKING GAS INPUT BY CLOCKING THE GAS METER Be sure there is no gas flow through the meter other than that of the appliance being tested Other appliances must remain off with pilots extinguished or the consumptions must be deducted from the meter reading Convert the flow rate to Btuh as described in the Gas Controls Handbo
17. ok form 70 2602 and compare to the Btuh input rating on the appliance nameplate 3 IF CHECKING GAS INPUT WITH A MANOM ETER PRESSURE GAUGE Make sure the gas control knob is in the PILOT position before removing the outlet pressure tap plug to connect the manom eter e Turn the gas control knob back to PILOT when removing the manometer and replacing outlet pressure tap plug Shut off the gas supply at the appliance service valve or for LP gas at the gas tank before removing the outlet pressure tap plug and before disconnecting the manometer and replacing the outlet pressure tap plug Perform the Gas Leak Test at the inlet pressure tap plug Standard Opening and Slow Opening Pressure Regulator 1 The gas control outlet pressure should match the manifold pressure listed on the appliance name plate 2 With the main burner operating check the gas control flow rate using the meter clocking method or check the gas pressure using a manometer con nected to the gas control outlet pressure tap See Fig 5 3 If necessary adjust the pressure regulator to match the appliance rating Refer to Table 7 or 8 for the factory set nominal outlet pressures and adjustment ranges a Remove the pressure regulator adjustment cap and screw b Use a screwdriver to turn the inner adjustment screw clockwise TX to increase or counterclockwise 7 to decrease the main burner gas pressure c Always replace the cap screw and tighte
18. omplete check out product operation as provided in these instructions A WARNING Fire or Explosion Hazard Can cause property damage severe injury or death Follow these warnings exactly 1 Disconnect power supply before installing or servicing 2 To avoid dangerous accumulation of fuel gas turn off gas supply at the appliance service valve before starting installation and perform Gas Leak Test after completion of installation 8 Do not bend pilot tubing at gas control or pilot burner after compression fitting has been tightened or gas leakage at the connection may result 4 Always install sediment trap in gas supply line to prevent contamination of gas control 5 Do not force gas control knob Force or attempted repair may result in fire or explo sion Use only your hand to push down the reset button or turn the gas control knob Never use any tools If the gas control knob or reset button does not operate by hand the gas control should be replaced by a qualified service technician CAUTION Equipment Hazard Improper installation can burn out thermostat heat anticipator Do not apply a jumper across or short the valve coil terminals IMPORTANT These gas controls are shipped with protective seals over inlet and outlet tappings Do not remove seals until ready to connect piping Follow the appliance manufacturer instructions if available otherwise use the instructions provided below 69 0668 1
19. ontrol until it bottoms While holding the tubing all the way in slide the compression fitting into place and engage threads turn until finger tight Then tighten one more turn with wrench Do not overtighten Refer to Fig 7 GAS CONTROL a TIGHTEN NUT ONE TURN BEYOND FINGER TIGHT TO PILOT BURNER FITTING BREAKS OFF AND CLINCHES TUBING AS NUT IS TIGHTENED M3076A Fig 7 Always use new compression fitting 5 Connect other end of tubing to pilot burner according to pilot burner manufacturer instructions Install Thermocouple The Q340A Thermocouple with adapters is provided with SUPER TRADELINE models of the VR8300A Install the Q340A as follows 1 Determine if the pilot burner requires a thermo couple with a push in clip or attachment nut and attach the correct adapter to the Q340 2 For push in clip type pilot burners from beneath insert the tip of the Q340 into the hole or barrel of the pilot burner Push in firmly to lock in place THERMOCOUPLE LEAD ECO CONNECTOR THIS IS AN ELECTRICAL CONECTION AND MUST BE M3095 CLEAN AND DRY DO NOT USE PIPE COMPOUND Fig 8 Install thermocouple optional ECO connector to power unit 3 For attachment nut type pilot burners From beneath insert the tip of the Q340 into the hole or barrel in the pilot burner Engage the threads of the attachment nut and tighten securely Connect Thermocouple If a supplementary limit or e
20. pipe carefully into bushing until tight Follow the instructions below for piping installing control connecting pilot tubing thermocouple and wiring Make certain the leak test you perform on the control after completing the installation includes leak testing the adapters and screws If you use a wrench on the valve after flanges are installed use the wrench only on the flange not the control Use Adapters to Solve Swing Radius Problems In some field service applications it is difficult or impos sible to thread the gas control onto the gas supply pipe because of space limitations This problem can usually be resolved by using an adapter 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 After the adapter is installed the gas control is attached to the adapter as outlined above Note that using an adapter increases the overall length of the gas control INLET 9 64 IN 3 6 My a HEX SCREWS 4 es A DO NOT OVERTIGHTEN SCREWS TIGHTEN TO 25 IN LB Fig 2 Install flange to gas control Choose Gas Control Location Do not locate the gas control where it can be affected by steam cleaning high humidity dripping water corrosive chemicals dust or grease accumulation or excessive heat To ensure proper operation follow these guidelines Locate gas control in a well ventilated area Mou
21. re Regulator Specification Pressures in in we a Type of Gas Outlet Pressure Nominal Factory Setting Setting Range Inlet Pressure Range Step Step Fun Rate Step FullRae Table 8 Pressure Regulator Specification Pressures in Kpa Outlet Pressure Type of Gas Nominal Nominal Factory Setting Setting Range Nominal Inlet Pressure Range Step Ful Rate 69 0668 1 8 VR8300A CONTINUOUS PILOT COMBINATION GAS CONTROL SERVICE WARNING Fire or Explosion Hazard Can cause property damage severe injury or death Do not disassemble the gas control it contains no replaceable components Attempted disassembly or repair can damage the gas control CAUTION Hazardous voltage Improper installation can burn out thermostat heat anticipator Do not apply a jumper across or short the valve coil terminals IMPORTANT Allow 60 seconds after shutdown before re energizing step opening model to ensure lightoff at step pressure If Pilot Burner Flame does not Light 1 Make sure that the main gas supply valve is open and the pilot gas supply line is purged of air 2 Light the pilot burner flame following procedures in Light the Pilot Burner Flame section If pilot burner flame does not light a Check the pilot gas adjustment screw If closed readjust the pilot flame Refer to Adjust the Pilot Burner Flame section b Perform the Gas Leak Test at the compres sion fitting If a gas lea
22. s control inlet and outlet Use a wrench on the square ends of the gas control If an adapter is used place the wrench on the adapter rather than the gas control Refer to Fig 5 and 6 PRESSURE REGULATOR CONVENIENCE ADJUSTMENT TERMINALS 2 WIRING UNDER CAP SCREW OPTIONAL TERMINALS 2 OUTLET PRESSURE oo TAP PRESSURE INLET D OUTLET cr OUTLET PILOT ADJUSTMENT THERMOCOUPLE GAS UNDER CAP SCREW CONNECTION CONTROL eats RED RESET BUTTON KNOB Fig 5 Top view of gas control APPLY WRENCH TO FLANGE ONLY M16012 Fig 6 Proper use of wrench on gas control Connect Pilot Gas Tubing 1 Cut tubing to desired length and bend as necessary for routing to pilot burner Do not make sharp bends or deform the tubing Do not bend tubing at gas control or pilot burner after compression fitting is tightened because this can result in gas leakage at the connection VR8300A CONTINUOUS PILOT COMBINATION GAS CONTROL 2 Square off and remove the burrs from the end of the tubing 3 Unscrew the compression fitting from the pilot outlet Fig 5 Slip the compression fitting over the tubing and slide out of the way NOTE When replacing a gas control cut off the old compression fitting and replace with the new compression fitting provided on the gas control Never use the old compres sion fitting as it may not provide a gas tight seal 4 Push tubing into the pilot gas tapping on the outlet end of the c
23. ssure is correct replace the gas control Measure the open and closed thermocouple output voltages and compare to the acceptable range charts in the thermocouple specifications or in the Gas Controls Handbook Replace the thermocouple if voltages are outside the acceptable range If Main Burner is Overfiring Adjust the gas control pressure regulator to the correct pressure If the regulator cannot be adjusted and supply pressure is in the normal range replace the gas control Instructions to the Homeowner A WARNING Fire or Explosion Hazard Can cause property damage severe injury or death Follow these warnings exactly 1 Pilot burner flame must be lit manually Follow these instructions exactly 2 Before lighting pilot burner flame smell around the appliance area for gas Be sure to smell next to floor because LP gas is heavier than air 3 IF YOU SMELL GAS e Immediately turn off the gas supply at the appliance service valve On LP gas systems turn off the gas supply at the gas tank Do not light any appliances in the house Do not touch electrical switches or use the phone Leave the building and call your gas supplier e If you can not reach your gas supplier call the fire department 4 Do not force the gas control knob on the appliance Use only your hand to turn the gas control knob Never use any tools If the gas control knob does not operate by hand have a qualified service technicia
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