HONEYWELL VR8345 (01) PDF MANUAL


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PDF Content Summary: VR8245 and VR8345 Universal Electronic Ignition Gas Controls APPLICATION The universal electronic ignition gas controls are used in gas-fired appliances with capacities up to 415 cu ft/hour at 1 inch wc pressure drop [11.8 cu m/hour at 0.25 kPa] for natural gas. These gas controls will operate with a direct spark (DSI), hot surface (HSI) or intermittent pilot ignition. The control includes a manual valve, two automatic operators, a pressure regulator, pilot adjustment, pilot plug, conduit cover and ignition adapter. Refer to the following list for the specifications. INSTALLATION INSTRUCTIONS SPECIFICATIONS Ambient Temperature Range: -40° to 175°F [-40° to 79°C]. Body Pattern: Straight-through. Ignition Adapter: Configures device to operate with direct spark or hot surface ignition. Electrical Ratings: Voltage and Frequency: 24 Vac, 50/60 Hz. Current Draw: See Table 3 for current draw. Capacity: See Table 1. Table 1. Gas Capacity. Minimum Regulated Maximum Regulated Models Size 1” PD Capacity Capacity Capacity VR8245 1/2X1/2 150,000 20,000 (40,000 for LP) 200,000 VR8345 1/2 X 1/2 240,000 30,000 340,000 3/4 X 3/4 300,000 30,000 415,000 1/2 X 3/4 270,000 30,000 370,000 a Capacity based on 1000 Btu/cu ft, 0.64 specific gravity natural gas at 1 in. wc pressure drop [37.3 MJ/cu m, 0.64 spe- cific gravity natural gas at 0.25 kPa pressure drop]. Use conversion factors in Table 2 to convert capacities for other gases. Table 2. Gas Capacity Conversion Factors. Gas Specific Gravity Approvals: American Gas Association Design Certificate: L2025007. Canadian Gas Association Design Certificate: L2025007. Pipe Adapters: Includes two 3/4 to 1/2 inch NPT bush- ings and one 1/2 to 3/8 inch NPT bushing. 69-2013-02 Models include: Natural to LP conversion kit and Reducer bushings Cross Reference: See Table 4 for cross reference infor- mation. Multiply Listed Capacity By INSTALLATION Manufactured 0.60 0.516 Mixed 0.70 0.765 WHEN INSTALLING THIS Propane 1.53 1.62 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. The installer must be a trained, experienced ser- vice technician. 4. After installation is complete, use these instruc- tions to check out product operation. VR8245 AND VR8345 UNIVERSAL ELECTRONIC IGNITION GAS CONTROLS WARNING FIRE OR EXPLOSION HAZARD CAN CAUSE PROPERTY DAMAGE, SEVERE INJURY, OR DEATH Follow these warnings exactly: 1. Disconnect power supply before wiring to prevent electrical shock or equipment damage. 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. 3. When working with a system using intermittent pilot ignition, do not bend pilot tubing at gas control or pilot burner after compression fitting has been tightened because gas leakage at the connection can result. 69-2013—02 2 4. Always install sediment trap in gas supply line to prevent contamination of gas control. 5. Do not force the gas control knob. Use only your hand to turn the gas control knob. Never use any tools. If the gas control knob will not operate by hand, call a qualified service technician to replace the gas control. Force or attempted repair can result in fire or explosion. Table 3. Fuel Conversion Kits. Size Pressure Conversion Kits Valve (Inlet and Outlet) Regulator Type Current Draw (A) Natural Gas - LP LP - Natural Gas VR8245M 1/2 x 1/2 Standard .5 393691 394588 VR8345H,K 3/4 x 3/4 Slow-Opening .7 393691 394588 VR8345M 3/4 x 3/4 Standard .7 393691 394588 VR8345Q 3/4 x 3/4 2-Stage .9 396021 396025 Table 4. Cross Reference. Universal Service Part Honeywell White-Rodgers Robert-Shaw VR8245M2530 VR8204M1075, VR8204M1091, VR8204A1201, VR8204A1219, VR8204A2001, VR8204A2076, VR8204A2175, VR8204A2803, VR8205A2008, VR8205M1106, VR8205A2024, VR8205M2310, VR8205M2443 CAUTION Never apply a jumper across or short the valve coil terminals. This can burn out the heat anticipator in the thermostat or damage the electronic intermittent pilot (IP) module. 36E01-204, 36E01-205, 36E01-206, 36E01-305, 36E22-214, 36E36-304, 36E93-304, 36G22-214, 36J22-214 720-079 (7200IPER), 720-080 (7200IPER-LP), 722-051 (2000DERHC), 722-079 (2000IPERHC) VR8345H4555 VR8204H1006, VR8304H4503, VR8305H4013, VR8305H4039, VR8205H1003 36E24-214, 36E52-214, 36E93-304, 36E98-304 720-070 (72000IPER-S7C), 720-071 (72000IPER-S7C), 720-072 (72000IPER-S7C), 720-073 (72000IPER-LP-S7C) VR8345M4302 VR8204A1201, VR8204A1219, VR8204A2001, VR8204A2175, VR8204A2803, VR8204M1075, VR8205A2008, VR8205M1106, VR8205M2310, VR8205M2443, VR8304M3509, VR8304M4002, VR8304M4507, VR8305M3506, VR8305M4066, VR8305M4165, VR8305M4231 36C68-423, 36C74-413, 36E01-204, 36E01-205, 36E01-206, 36E01-305, 36E22-214, 36E36-304, 36E93-304, 36G22-214, 36J22-214 720-051 (7200DER), 720-079 (7200IPER), 720-080 (7200IPER-LP), 722-051 (2000DERHC), 722-079 (2000IPERHC) VR8345Q4563 VR8205Q2381, VR8205Q2555, VR8205Q2662, VR8205Q2746, VR8205Q2787, VR8305Q4453, VR8304Q4511, VR8305Q4138, VR8305Q4146, VR8305Q4500 36C76-406, 36C76-420, 36C76-463, 36D13-208, 36D13-405, 36E54-214, 36E96-314, 36G54-214 720-082 (7200IPER2-4) 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 following instructions. VR8245 AND VR8345 UNIVERSAL ELECTRONIC IGNITION GAS CONTROLS Converting Between Natural And LP GasTWO IMPERFECT THREADS GAS CONTROL WARNING PIPE FIRE OR EXPLOSION HAZARD CAN CAUSE PROPERTY DAMAGE, SEVERE INJURY, OR DEATH Do not attempt to use a gas control set for natural THREAD PIPE THE AMOUNT APPLY A MODERATE AMOUNT OF SHOWN IN TABLE FOR PIPE COMPOUND TO PIPE ONLY INSERTION INTO GAS CONTROL (LEAVE TWO END THREADS BARE). M3075B gas on LP gas or a gas control set for LP gas on natural gas. Fig. 1. Use moderate amount of pipe compound. Convert standard-opening, slow-opening, and 2 stage gas Complete the instructions below for installing the piping, controls from natural gas to LP gas with the conversion kit installing the control, connecting the pilot gas tubing and included with this gas control. For conversion kit part the wiring. Make sure the leak test you perform on the number, see Table 3. control after completing the installation includes leak To convert from one gas to another: testing the adapters and screws. VR8245M, H, K AND VR8345M, H, K: Choose Gas Control Location 1. Turn off gas supply at the appliance service valve. 2. Remove regulator cap screw and pressure regula- tor adjusting screw. Refer to Fig. 3. 3. Remove the existing spring. 4. Insert the replacement spring. Refer to Fig. 4. Locate the combination gas control in the appliance vestibule on the gas manifold. In replacement applications, locate the gas control in the same location as the old control. 5. Install the new plastic pressure regulator adjust- ment screw. Assure that the screw top is flush with the regulator top. 6. Turn pressure regulator adjustment screw clockwise eleven complete turns. The preliminary pressure 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. setting is approximately 10.0 in. wc (2.5 kPa) for LP For proper operation, follow these guidelines: gas regulator (393691) and 3.5 in. wc (0.9 kPa) for • Locate gas control in a well-ventilated area. natural gas regulator (394588). • Mount gas control high enough above the cabinet 7. Check the regulator setting using a manometer or by clocking the gas meter. See Check and Adjust bottom to avoid exposure to flooding or splashing water. Gas Input to Main Burner section. • Make sure the ambient temperature does not exceed 8. Install the new cap screw and O ring. 9. Mount conversion label on the gas control. the ambient temperature ratings for each component. • Cover gas control when the appliance is cleaned with water, steam, or chemicals or to avoid dust and grease VR8345Q: 1. Turn off gas supply at the appliance service valve. 2. Remove the pressure regulator cover assembly. accumulation. • Avoid locating gas control where exposure to corrosive chemical fumes or dripping water is possible. Refer to Fig. 5. 3. Remove the existing stem/spring assembly. Install Piping to Gas Control 4. Insert the replacement stem/spring assembly. 5. Replace the pressure regulator cover assembly and tighten screws. 6. Mount conversion label on the gas control 7. Check the regulator setting using a manometer or by clocking the gas meter. See Check and Adjust All piping must comply with applicable 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. Gas Input to Main Burner section. 1. Use new, properly reamed pipe free from chips. If tubing is used, make sure the ends are square, INSTALL BUSHINGS TO CONTROL 1. Remove the seal over the control inlet or outlet. 2. Apply a moderate amount of good quality pipe com- pound to the bushing, leaving two end threads bare. See Fig. 1. On an LP installation, use compound that is resistant to LP gas. Do not use Teflon tape. 3. Insert the bushing in the control and carefully thread deburred and clean. Make sure all tubing bends are 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. 2. the pipe into the bushing until tight. 3 69-2013—02 VR8245 AND VR8345 UNIVERSAL ELECTRONIC IGNITION GAS CONTROLS DROP Install Gas Control HORIZONTALPIPED GAS SUPPLY GAS 1. This gas control can be mounted from 0 to 90 CONTROL degrees in any direction from the vertical position of the gas control knob. 2. Mount the gas control so gas flow is in the direction of the arrow on the bottom of the gas control. PIPED 3 IN. GAS 69-2013—02 4 3. Thread pipe the amount shown in Table 5 for inser- tion into the gas control. (76 MM) MINIMUM RISER GAS CONTROL SUPPLY IMPORTANT: 2 Do not thread pipe too far. Valve distortion or malfunction can result when the pipe is inserted too deeply into the gas control. GAS CONTROL 3 IN. (76 MM) MINIMUM 4. Apply a moderate amount of good quality pipe com- 12 DROP HORIZONTAL3 IN. TUBING (76 MM) 1 GAS SUPPLY MINIMUM Table 5. NPT Pipe Thread Length in in. 2 Pipe Thread Pipe Size This Amount RISER 2 pound (do not use Teflon tape) to pipe only, leaving two end threads bare. See Fig. 1. On LP installa- tions, use compound resistant to LP gas. 5. Remove seals over gas control inlet and outlet if necessary. 6. Connect pipe to gas control inlet and outlet. Use wrench on the square ends of the gas control. See Fig. 3 and 6. When working with an intermittent pilot ignition system, go to Connect Pilot Gas Tubing section next. When installing on a hot surface or direct spark ignition system, go to the Wiring section. Fig. 3. Top view of gas control. Maximum Depth Pipe Can Be Inserted Into Control 3/8 9/16 3/8 1/2 3/4 1/2 3/4 13/16 3/4 ALL BENDS IN METALLIC TUBING SHOULD BE SMOOTH. 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. M8435A Fig. 2. Install sediment trap. HI-LOW ADJUSTMENT SCREWS (UNDER CAP) PRESSURE REGULATOR REGULATOR VENT COVER INLET ADJUSTMENT WIRING TERMINALS (3) (UNDER CAP SCREW) INLET PRESSURE TAP TWO-STAGE PRESSURE REGULATOR MODEL GAS CONTROL O U TLET PRESSU RE TAP L O H I INLET OUTLET PILO T O U TLET PILOT ADJUSTMENT ()UNDER CAP SCREW) KNOB M10968B VR8245 AND VR8345 UNIVERSAL ELECTRONIC IGNITION GAS CONTROLS COLOR CODE FOR LPNATURAL GAS GAS CAP SCREW BLACK SILVER O RING BLACK BLACK PRESSURE REGULATOR ADJUSTING BLACK BLACK SCREW SPRING RED STAINLESS STEEL APPLY WRENCH PRESSURE FROM TOP OR REGULATOR BOTTOM OF GAS HOUSING CONTROL TO EITHER SHADED AREA M7780C M8562B Fig. 4. 393691, 394588 Coversion kit installation in regulator Fig. 6. Proper use of wrench on gas control. Connect Pilot Gas Tubing PRESSURE REGULATOR (Intermittent Pilot Ignition Only) COVER ASSEMBLY 1. Remove the pilot gas seal (plug). STEM/SPRING 2. Cut tubing to desired length and bend as necessary ASSEMBLY (BLACK—LP GAS; for routing to pilot burner. WHITE—NATURAL GAS) CAUTION Do not kink tubing. 1. Do not make sharp bends or deform the tubing. 2. Do not bend tubing within 3 inches of the gas control or pilot burner after compression fitting has been tightened because this can result in gas leakage at the connection. 3. Square off and remove burrs from end of tubing. 4. Use the compression fitting supplied with this gas control. Slip the fitting over the tubing and slide out of the way. NOTE: When replacing a gas control, cut off old compression fitting and replace with the new M12944A compression fitting provided on the gas con- trol. Never use the old compression fitting Fig. 5. 396021, 396025 two stage conversion kit because it may not provide a gas-tight seal. installation. 5. Push tubing into the pilot gas tapping on the outlet end of the control until it bottoms. While holding tub- ing all the way in, slide compression fitting into place, engage threads and turn until finger tight. Then tighten one more turn with wrench. Do not overtighten. Refer to Fig. 7 and 8. 6. Connect other end of tubing to pilot burner accord- ing to pilot burner manufacturer instructions. GAS CONTROL TIGHTEN NUT ONE TURN BEYOND FINGER-TIGHT. TO PILOT BURNER FITTING BREAKS OFF AND CLINCHES TUBING AS NUT IS TIGHTENED. M3076B Fig. 7. Always use new compression fitting. 5 69-2013—02 VR8245 AND VR8345 UNIVERSAL ELECTRONIC IGNITION GAS CONTROLS 69-2013—02 6 All wiring, including insulated quick connect terminals, must comply with applicable electrical codes and ordinances.

PILOT GAS TUBE 1. Check the power supply rating on the gas control and make sure it matches the available supply. Install thermostat and other controls as required. OFF ON 2. When the gas control is installed on a hot surface or direct spark ignition system, attach the wire adapter provided to the wiring terminals. See Fig. 9 for the PVwire terminal location. PMVV3. Connect control circuit to gas control terminals. See 2. When the gas control is installed on a hot surface or direct spark ignition system, attach the wire adapter provided to the wiring terminals. See Fig. 9 for the PVwire terminal location. PMVV3. Connect control circuit to gas control terminals. See MV Fig. 3 and 10, 11, 12, or 13. 4. Adjust the thermostat heat anticipator to 0.7, the rating stamped on the valve operator. OFF ON PILOT GAS SEAL (PLUG) WIRE ADAPTER Fig. 8. Remove pilot gas seal (plug) and install pilot gas tube for intermittent pilot application on VR8345. M8440A Fig. 9. Install wire adapter for hot surface or direct spark ignition systems. Pilot plug must be in the valve pilot opening. PVPMVVMV M8441A WIRING CAUTION Disconnect power supply before making wiring connections to prevent electrical shock or equipment damage. Follow the wiring instructions furnished by the appliance manufacturer, if available, or use the following general instructions. Where these instructions differ from the appliance manufacturer, follow the appliance manufacturer instructions.

VR8245 AND VR8345 UNIVERSAL ELECTRONIC IGNITION GAS CONTROLS S8610U 5 VENT GND 24V DAMPER MV MV/PV PV (BURNER) GND 24V TH-W PLUG SENSE SPARK AIR 6 3 PV MV/PV MV PROVING SWITCH THERMOSTAT VALVE DUAL VALVE COMBINATION 2 GAS CONTROL COMBUSTION AIR BLOWER RELAY 4 SENSOR IGNITER 1 LIMIT CONTROLLER L1 L2 COMBUSTION (HOT) AIR BLOWER PILOT BURNER GROUND MOTOR 1 L2 L1 (HOT) PILOT GAS SUPPLY CONTROLLER 1POWER SUPPLY. PROVIDE DISCONNECT MEANS AND OVERLOAD PROTECTION AS REQUIRED. 2ALTERNATE LIMIT CONTROLLER LOCATION. 3MAXIMUM CABLE LENGTH 3 FT [0.9 M]. 4CONTROLS IN 24V CIRCUIT MUST NOT BE GROUND LEG TO TRANSFORMER. 5LEAVE VENT DAMPER PLUG CONNECTED. 6 REMOVE JUMPER AND CONNECT SENSE TERMINAL ON TWO ROD APPLICATION ONLY. M23470 Fig. 10. VR8245M/VR8345M,H wiring connections in intermittent ignition system. 7 69-2013—02

VR8245 AND VR8345 UNIVERSAL ELECTRONIC IGNITION GAS CONTROLS S8910U HOT SURFACE IGNITER CONTROL MPLS., MN 55422 S8910U HOT SURFACE IGNITION 6 WARNING 5! AUTO IGNITION 0INPUT VOLTAGES = 120 & 24 VAC, 60HZ 0SYSTEMS AHSI = 120V, 6.5A MAX ANSI Z21.20 0Explosion hazard. Can cause 7VALVE = 24V, 1A MAX TOTAL 24V LOAD = 0.2 + VALVE LOAD 5serious injury or death. This device can malfunction if STATUS LED: 1. Flash-Ignition Lockout it gets wet. Never try to use a device that has been wet -- replace it. 69-2013—02 8 Prepurge Time = 30 Sec Igniter Warmup Time = 34 sec 2 Flash-Weak Flame Signal 3 Flash-Internal Error-Replace Control Pulsing "Heartbeat"-Normal Operation 120VAC ) HOT SEE E RE INSTRUCTIONS EE S) V) FOR REMOTE NVD I NI LD DDRV V LSENSE/DUAL SNENAN2 SEU441 AROD GLHSB2GV2LGHL(V((APPLICATIONS HOT SURFACE IGNITER/SENSOR HSI WIRE ADAPTER 24V TRIAL TIME, NEUTRAL 120VAC NUM. OF TRIALS CONFIGURATION PLUG TRIAL TIME: 7 SEC NUM OF TRIALS: 1 3 VALVE Q354 FLAME SENSOR LIMIT CONTROLLER THERMOSTAT OR CONTROLLER POWER SUPPLY. PROVIDE DISCONNECT MEANS AND OVERLOAD PROTECTION AS REQUIRED. MAKE SURE L1 AND L2 ARE NOT REVERSED. THIS WOULD PREVENT FLAME DETECTION. ALTERNATE LIMIT CONTROLLER LOCATION SENSE TERMINAL AND Q354 FLAME SENSOR ON D MODELS ONLY. 3 2 123 BURNER GROUND QUICK MVCONNECTS MV L1 (HOT) L21 M23471 Fig. 11. VR8245M/VR8345M,H wiring connections in hot surface ignition system. Fig. 12. VR8245M/VR8345M,H wiring connections in direct spark ignition system (single rod application). 2-STAGE GAS VALVE L1 (HOT) L2 HI MV PV C 12 2 3 SECOND STAGE OR HIGH FIRE S87 CONTROL MODULE ALARM, 1 MAIN VALVE OR LO FIRE PILOT VALVE FOR INTERMITTENT IGNITION ONLY 5 IF USEDALARM COMMON TERMINAL OF IGNITION COILS M23473 VALVE VALVE GND QUICK CONNECTS TEMPERATURE CONTROLLER 24V (GND) DSI WIRE ADAPTER MVFig. 13. VR8345Q wiring diagram. MV VALVE 4 Valve terminals: Typically connects to: Hi W2, Hi Mv or Lo Mv, Lo, Valve IGNITER-SENSOR AND BURNER GROUND C Mv/Pv, Valve Q347 IGNITER-SENSOR Pv Pv 3 BURNER POWER SUPPLY. PROVIDE DISCONNECT MEANS AND OVERLOAD PROTECTION AS REQUIRED. ALTERNATE LIMIT CONTROLLER LOCATION. MAXIMUM IGNITER-SENSOR CABLE LENGTH: 3 FT [.9 M] OR LESS. 4 3A REPLACEABLE FUSE. 5 ALARM TERMINAL PROVIDED ON SOME MODELS. M23472

VR8245 AND VR8345 UNIVERSAL ELECTRONIC IGNITION GAS CONTROLS STARTUP AND CHECKOUT WARNING FIRE OR EXPLOSION HAZARD CAN CAUSE PROPERTY DAMAGE, SEVERE INJURY, OR DEATH 1. Do not force the gas control knob. Use only your hand to turn the gas knob. Never use any 1. Remove the pilot adjustment cover screw. Refer to Fig. 3. 2. Turn the inner adjustment screw clockwise to decrease or counterclockwise to increase pilot flame. 3. To prevent gas leakage, always replace the cover screw after adjustment. tools. 2. If the gas control knob will not operate by hand, call a qualified service technician to replace the gas control. Gas Control Knob Settings The gas control knob operates differently in intermittent pilot, hot surface and direct spark ignition systems. The gas control knob settings for an intermittent pilot system are as follows: OFF: Prevents pilot and main burner gas flow. ON: Permits gas to flow into the control body. Fig. 14. Proper flame adjustment. Under control of the thermostat and intermittent pilot module, gas can flow to the pilot and main burner. Check And Adjust Gas Input to Main Burner The gas control knob settings for hot surface or direct spark ignition systems are as follows: OFF: Prevents main burner gas flow. CAUTION ON: Permits main burner gas flow. Under control Fire or explosion hazard. of the thermostat and ignition module, gas can 1. Do not exceed the input rating stamped on the flow to the main burner. appliance nameplate, or manufacturer NOTE: Gas controls are shipped with the gas control knob in the ON position. recommended burner orifice pressure for the size orifice(s) used. Make certain the primary air supply to the main burner is properly adjusted for complete combustion (refer to the Perform Gas Leak Test appliance manufacturer instructions). 2. WHEN CHECKING GAS INPUT BY CLOCKING THE GAS METER: WARNING • Make sure that the only gas flow through the meter is that of the appliance being checked. FIRE OR EXPLOSION HAZARD • Make certain that other appliances are turned CAN CAUSE PROPERTY DAMAGE, SEVERE off with pilot burners extinguished (or deduct INJURY, OR DEATH that gas consumption from the meter Check for gas leaks with a rich soap and water reading). solution anytime work is done on a gas control. • Convert the flow rate to Btuh as described in Gas Controls Handbook, form 70-2602, and ZAdjust the Pilot Burner Flame (Intermittent Pilot Ignition only) The pilot flame should envelop 3/8 to 1/2 in. [10 to 13 mm] of the igniter-sensor tip. See Fig. 14. If the pilot flame is small or lazy, or does not touch the ground electrode or thermocouple, the inlet gas pressure may be too low, or the pilot orifice may be partially clogged. Check and repair as necessary. If the pilot flame is hard and noisy, the inlet gas pressure may be too high. If pilot adjustment is necessary, proceed as follows: compare to the Btuh input rating on the appliance nameplate. 3. WHEN CHECKING GAS INPUT WITH A MANOMETER (PRESSURE GAUGE): • To connect the manometer, be sure the gas control knob is in the OFF position before removing the outlet pressure tap plug. • When removing the manometer, turn the gas control knob back to OFF and replace the outlet pressure tap plug. • Shut off the gas supply at the appliance service valve, or at the gas tank for LP gas, 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 outlet pressure tap plug. 9 69-2013—02 PROPER FLAME 3/8 TO 1/2 INCH ADJUSTMENT (10 TO 13 mm) IGNITER- SENSOR M3080A

VR8245 AND VR8345 UNIVERSAL ELECTRONIC IGNITION GAS CONTROLS

Standard-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 con- trol flow rate by using the meter clocking method or check the gas pressure using a manometer con- nected to the gas control outlet pressure tap. See Fig. 3. 3. If necessary, adjust the pressure regulator to match the appliance rating. Refer to Table 6 for the factory set nominal outlet pressures and adjustment setting ranges. a. Remove the pressure regulator adjustment cap screw. b. Using a screwdriver, turn the inner adjustment screw clockwise to increase or counter- clockwise to decrease the main burner gas pressure. c. Always replace the cap screw and tighten firmly to safeguard proper operation. 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 by using a manometer at the inlet pressure tap. If the inlet pressure is in the normal range (refer to Table 6 and 7), replace the gas control. Otherwise, take the nec- essary steps to provide proper gas pressure to the gas control. Standard and Slow-Opening (H and M) Models 1. Carefully check the main burner lightoff. Make sure that the main burner lights smoothly and that all ports remain lit. 2. Check the full rate manifold pressure listed on the appliance nameplate. Gas control full rate outlet pressure should match this rating. 3. With main burner operating, check the control flow rate using the meter clocking method or check pres- sure using a manometer connected to the outlet pressure tap on the control. See Fig. 3. 4. If necessary, adjust the pressure regulator to match the appliance rating. See Table 6 and 7 for factory- set nominal outlet pressure and adjustment range. a. Remove the pressure regulator adjustment cap screw. b. Using a screwdriver, turn the inner adjustment screw (Fig. 3) clockwise to increase or counterclockwise to decrease the gas pres- sure to the burner. c. Always replace the cap screw and tighten firmly to prevent gas leakage. 5. If the desired outlet pressure or flow rate cannot be achieved by adjusting the gas control, check the gas control inlet pressure using a manometer at the inlet pressure tap of the gas control. If the inlet pres- sure is in the nominal range (see Table 6 and 7), replace the gas control. Otherwise, take the neces- sary steps to provide proper gas pressure to the control. 69-2013—02 10 Two-Stage (Q) Models Two-stage models require that you check and adjust both high and low pressure regulator settings. Two-stage appliance operating sequences vary. Consult the appliance manufacturer instructions for the specific operating sequence and regulator adjustment procedure for the appliance in which the control is installed. 1. Set appliance to operate on high. 2. Carefully check the main burner lightoff. Make sure that the main burner lights smoothly and that all ports remain lit. 3. Check the full rate (high) manifold pressure listed on the appliance nameplate for high pressure. The gas control full rate outlet pressure should match this rating. 4. With main burner operating, check the gas control flow rate using the meter clocking method or check pressure using a manometer connected to the out- let pressure tap on the gas control. See Fig. 3. 5. If necessary, adjust the high pressure regulator to match the appliance rating. See Table 6 and 7 for factory-set nominal outlet pressure and adjustment range. a. Remove the pressure regulator adjustment cap (Fig. 3). b. Using a screwdriver, turn the inner adjustment screw for HI pressure clockwise to increase or counterclockwise to decrease the gas pressure to the burner. 6. After high pressure has been checked, check low pressure regulation. Two-stage appliance operating sequences vary. Consult the appliance manufactur- ers instructions for the specific operating sequence and regulator adjustment procedure for the appli- ance in which the control is installed and for instruc- tions on how to prevent the control from moving to high stage while checking the low pressure regula- tor setting. 7. Check the low rate manifold pressure listed on the appliance nameplate. Gas control low rate outlet pressure should match this rating. 8. With main burner operating, check the gas control flow rate as before (using the meter clocking method or check pressure using a manometer con- nected to the outlet pressure tap on the control). 9. If necessary, adjust the low pressure regulator to match the appliance rating. See Table 6 and 7 for factory-set nominal outlet pressure and adjustment range. a. Remove the pressure regulator adjustment cap (Fig. 3). Using a screwdriver, turn the inner adjustment screw for LO pressure clockwise to increase or counterclockwise to decrease the gas pressure to the burner. 10. Once high and low pressure have been checked and adjusted, replace pressure regulator adjust- ment cap. If the desired outlet pressure or flow rate cannot be achieved by adjusting the gas control, check the control inlet pressure using a manometer at the inlet pressure tap of the control. If the inlet pressure is in the nominal range (see Table 6 and 7), replace the gas control. Otherwise, take the nec- essary steps to provide proper gas pressure to the control.

VR8245 AND VR8345 UNIVERSAL ELECTRONIC IGNITION GAS CONTROLS Table 6. Pressure Regulator Specification Pressures for Standard-Opening Natural Gas. Nominal Inlet Type of Pressure Factory Set Nominal Outlet Pressure Setting Range Model Type Gas Range Step Full Rate Step Full Rate Standard, NAT 5.0 to 7.0 — 3.5 — 3.0 to 5.0 Slow LP 12.0 to 14.0 — 10.0 — 8.0 to 12.0 Step NAT 5.0 to 7.0 0.9 3.5 None 0.7 to 1.7 LP 12.0 to 14.0 2.2 10.0 None 1.4 to 5.5 Two-Stage NAT 5.0 to 7.0 — 1.7 Low — 3.5 High 0.9 to 3.0 Lowa 3.0 to 5.0 High LP 121.0 to 14.0 — 4.9 Low 10.0 High 11 69-2013—02 — 2.5 to 7.0 Low 8.0 to 11.0 High a Low Fire setting range for VR8304Q 1/2 in. by 1/2 in. and 1/2 in. by 3.4 in. is 1.5 to 3.0 in. wc. Table 7. Pressure Regulator Specification Pressures (kPa). Model Type a Low Fire setting range for VR8304Q 1/2 in. by 1/2 in. and 1/2 in. by 3.4 in. is 0.37 to 0.75 kPa. 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. NOTES: Read steps 1 through 7 below before starting and compare to the safety shutdown or safety lockout tests recommended for the intermittent pilot (IP), hot surface (HSI) or direct spark (DSI) module. When different, use the procedure rec- ommended for the module. 1. Turn off gas supply. 2. Set the thermostat or controller above room temperature to call for heat. 3. • Intermittent Pilot Ignition—Watch for an igni- tion spark at pilot burner either immediately or following prepurge. See ignition module specifications. Factory Set Nominal Outlet Pressure Setting Range Step Full Rate Step Full Rate Standard, Slow Nominal Inlet Type of Pressure Gas Range NAT 1.2 to 1.7 — 0.9 — 0.7 to 1.2 LP 2.9 to 3.9 — 2.5 — 2.0 to 3.0 Step NAT 1.2 to 1.7 0.2 0.9 None 0.7 to 1.7 LP 2.9 to 3.9 0.5 2.5 None 1.4 to 5.5 Two-Stage NAT 1.2 to 1.7 — 0.48 Low 0.9 High — 0.22 to 0.75 Lowa 0.75 to 1.2 High LP 2.9 to 3.9 — 1.2 Low 2.5 High — 0.6 to 1.8 Low 2.0 to 2.5 High • Hot Surface or Direct Spark Ignition—Watch for an ignition spark or glow at hot surface igniter either immediately or following pre- purge. See ignition module specifications. 4. If module has timed ignition, time the length of the igniter operation. See ignition module specifications. 5. • Intermittent Pilot Ignition—After the module locks out, turn on gas supply and make sure there is no gas flow to the pilot or main burner. NOTE: With modules that continue spark until pilot lights or system is shut down manually, pilot should light when gas supply is turned on. • Hot Surface or Direct Spark Ignition—After the module locks out, turn on gas supply and assure there is no gas flow to main burner. 6. Set the thermostat below room temperature and wait at least 45 seconds to reset system. 7. Operate system through one complete cycle to make sure all controls operate properly.

VR8245 AND VR8345 UNIVERSAL ELECTRONIC IGNITION GAS CONTROLS

MAINTENANCE WARNING FIRE OR EXPLOSION HAZARD CAN CAUSE PROPERTY DAMAGE, SEVERE INJURY, OR DEATH Improper cleaning or reassembly can cause gas leakage. When cleaning, be sure that the control is reassembled properly and perform gas leak test. Regular preventive maintenance is important in applications such as commercial cooking, agricultural and industrial operations that place a heavy load on system controls because: • In many such applications, particularly commercial cooking, the equipment operates 100,000 to 200,000 cycles per year. Such heavy cycling can wear out the gas control in one to two years. • Exposure to water, dirt, chemicals and heat can damage the gas control and shut down the control system. The maintenance program should include regular checkout of the gas control; see Startup and Checkout section. To check out the control system, see the appliance manufacturer literature. Maintenance frequency must be determined individually for each application. Some considerations are: • Cycling frequency. Appliances that may cycle 100,000 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 cost of an unexpected shutdown would be high, the system should be checked more often. • Dusty, wet, or corrosive environment. Since these environments can cause the gas control to deteriorate more rapidly, the system should be checked more often. NOTE: If the gas control will be exposed to high ammonia conditions, e.g., those used in greenhouses or animal barns, contact your Honeywell sales representative to request a gas control with corrosion resistant con- struction. The gas control should be replaced if: • It does not perform properly during checkout or troubleshooting. • The gas control knob is hard to turn or push down. • The gas control is likely to have operated for more than 200,000 cycles. 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. 69-2013—02 12 CAUTION Do not apply a jumper across or short the valve coil terminals. Doing so can burn out the heat anticipator in the thermostat or damage the ignition module. If Main Burner Will Not Come On With Call For Heat 1. Make sure the gas control knob is in the ON posi- tion. 2. Adjust thermostat several degrees above room tem- perature. 3. Using an ac voltmeter, check for voltage at gas control. • Intermittent Pilot Ignition—If pilot lights, mea- sure voltage across MV/PV and MV. If pilot does not light, measure across MV/PV and PV before safety lockout occurs. • Hot Surface or Direct Spark Ignition—Measure voltage across MV terminals at gas control. 4. If voltage is not present, check control circuit for pro-per operation. 5. If proper control circuit voltage is present, replace gas control. Instructions To The Homeowner (For Your Safety, Read Before Operating) WARNING FIRE OR EXPLOSION HAZARD CAN CAUSE PROPERTY DAMAGE, SEVERE INJURY, OR DEATH Follow these warnings exactly: 1. Pilot/main burner flame is lit automatically. Do not light the pilot/main burner flame manually. 2. Before lighting appliance, smell around the appliance for gas. Be sure to smell next to the floor because LP gas is heavier than air. 3. IF YOU SMELL GAS: • Turn off the gas supply at the appliance service valve. On LP gas systems, turn off gas supply at the gas tank. • Do not light any appliances in the house. • Do not touch electrical switches or use phone. • Leave the building and use a neighbor’s phone to call your gas supplier. • If you cannot reach your gas supplier, call the fire department. 4. Do not force the gas control knob. Use only your hand to push down or turn the gas control knob. Never use any tools. If the gas control knob will not operate by hand, call a qualified service technician to replace the gas control. Force or attempted repair can result in a fire or explosion. 5. Call a qualified service technician to replace the gas control if it has been flooded with water. 6. Call a qualified service technician to replace the gas control in the event of any physical damage, tampering, bent terminals, missing or broken parts, stripped threads, or evidence of exposure to heat.

VR8245 AND VR8345 UNIVERSAL ELECTRONIC IGNITION GAS CONTROLS IMPORTANT: Follow the operating instructions provided by the manufacturer of your heating appliance. The information below will be of assistance in a typi- cal gas control application, but the specific con- trols used and the procedures outlined by the manufacturer or your appliance may differ and require special instructions. To Turn On The Appliance Stop: Read the warnings on page 9. The pilot/main burner flame is lit automatically. Do not attempt to manually light the pilot. If the appliance does not turn on when the thermostat is set several degrees above room temperature, follow these instructions: 1. Set the thermostat to its lowest setting to reset the safety control. 2. Disconnect all electric power to the appliance. 3. Remove the gas control access panel. 4. Push in the gas control knob slightly and turn clock- wise to OFF. 5. Wait five minutes to clear out any unburned gas. If you then smell gas, STOP! Follow step 3 of the Warning in the Instructions To The Homeowner sec- tion. If you do not smell gas, continue with the next step. 6. Turn the gas control knob counterclockwise to ON. 7. Replace the gas control access panel. 8. Reconnect all electric power to the appliance. 9. Set the thermostat to the desired setting. 10. If the appliance does not turn on, set the gas control knob to OFF and contact a qualified service techni- cian for assistance. Turning Off The Appliance VACATION SHUTDOWN—Set the thermostat to the desired room temperature while you are away. COMPLETE SHUTDOWN—Push in the gas control knob slightly and turn clockwise to OFF. Do not force. Appliance will completely shut off. Follow the Instructions to the Homeowner above to resume normal operation. 13 69-2013—02 VR8245 AND VR8345 UNIVERSAL ELECTRONIC IGNITION GAS CONTROLS 69-2013—02 14 VR8245 AND VR8345 UNIVERSAL ELECTRONIC IGNITION GAS CONTROLS 15 69-2013—02 VR8245 AND VR8345 UNIVERSAL ELECTRONIC IGNITION GAS CONTROLS

Automation and Control Solutions Honeywell International Inc. 1985 Douglas Drive North Golden Valley, MN 55422 customer.honeywell.com ® U.S. Registered Trademark © 2012 Honeywell International Inc. 69-2013—02 M.S. Rev. 08-12 Printed in United States


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