VR8304 Intermittent Pilot Combination Gas Control

1 VR8304 Intermittent Pilot Combination Gas Control INSTALLATION INSTRUCTIONS. APPLICATION Table 2. Flange part numbers Inlet/outlet pipe size Flange type Part number These Intermittent Pilot gas controls are used in gas-fired 3/8 inch NPT Straight 393690-11. appliances with capacities up to 300 ft3/hr at 1 in. WC. pressure drop ( m3/h at kPa) on natural gas. 1/2 inch NPT Elbow 393690-13. They include a manual valve, two automatic operators, 3/4 inch NPT Straight 393690-4. and a pressure regulator. See Table 1 for temperature Elbow 393690-15. ranges and regulator types. NOTE: Flange kits include one flange with attached O- Table 1. Temperature ranges and regulator types ring and fan mounting screw. Ambient Model number temperature range Regulator type Table 3. Capacity VR8304H 0 F to 175 F Slow-opening Capacity at 1 in.

2 Size Minimum Maximum (-18 C to +79 C) WC pressure (inlet x regulated regulated VR8304K -40 F to 175 F Slow opening outlet) dropa capacity capacity (-40 C to +79 C). 1/2 x 1/2 240 ft3/hr 30 ft3/hr 340 ft3/hr VR8304M -40 F to 175 F Standard-opening (-40 C to +79 C) ( m3/hr) ( m3/hr) ( m3/hr). VR8304P -40 F to 175 F Step-opening 1/2 X 3/4 270 ft3/hr 30 ft3/hr 370 ft3/hr (-40 C to +79 C) ( m3/hr) ( m3/hr) ( m3/hr). 3/4 X 3/4 300 ft3/hr 30 ft3/hr 415 ft3/hr ( m3/hr) ( m3/hr) ( m3/r). SPECIFICATIONS. a Capacity based on 1000 Btu/ft3, specific gravity Body pattern: Straight-through body pattern. natural gas at 1 in. WC pressure drop ( MJ/m3, Inlet x outlet sizes available: 1/2 x 1/2 in., 1/2 x 3/4 in., specific gravity natural gas at kPa pressure and 3/4 x 3/4 in. (factory-installed inlet flange). drop. Adapters Adapters available for 3/8, 1/2 and 3/4 in.)

3 Use conversion factors in Table 4 to convert capacities straight and angle connections. Refer to Table 2. for other gases. Electrical Ratings: voltage and frequency: 24 Vac, 50/60 Hz. Table 4. Gas capacity conversion factors Current Draw: Multiply listed Capacity: See Table 3. Gas Specific gravity capacity by Approvals: Manufactured American Gas Association Design Certificate: Mixed UP-70-69A. Propane Canadian Gas Association Design Certificate: UP-70-69A. Australian Gas Association Certificate: Applied for. Delta C: Applied for. Place Bar Code Here 69-0625 03. VR8304 Intermittent Pilot Combination GAS Control . INSTALLATION To convert a gas Control from natural gas to LP gas or from LP gas to natural gas, contact your Honeywell representative. When installing this product .. 1. Read these instructions carefully.

4 Failure to follow Standard- or slow-opening gas controls are converted them could damage the product or cause a from one gas to another with a conversion kit (order hazardous condition. separately). Order Part Number 393691 to convert from 2. Check the ratings given in the instructions and on natural to LP gas. Order Part Number 394588 to convert the product to ensure the product is suitable for from LP to natural gas. Step-opening gas controls cannot your application. be converted. 3. Ensure installer is a trained, experienced service technician. 4. After installation is complete, use these instructions Install Adapters to Gas Control to check out product operation. Install adapters to the gas Control as follows: Flanges WARNING 1. Choose the appropriate flange for your application. Fire or explosion hazard.

5 Can cause property 2. Remove the seal over the gas Control inlet or outlet. damage, severe injury, or death. 3. Ensure the O-ring is fitted in the groove of the flange. If the O-ring is not attached or is missing, do Follow these warnings exactly: not use the flange. 1. Disconnect power supply before wiring to 4. With the O-ring facing the gas Control , align the prevent electrical shock or equipment damage. screw holes on the gas Control with the holes in the 2. To avoid dangerous accumulation of fuel gas, flange. Insert and tighten the screws provided with turn off gas supply at the appliance service the flange. See Fig. 1. Tighten the screws to 25 in. valve before starting installation, and perform pounds of torque to provide a gas-tight seal. the gas leak test after completion of installation. 3. 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.

6 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 tools. If the gas Control knob will not 9/64 INCH HEX. SCREWS (4). operate by hand, the gas Control should be replaced by a qualified service technician. Force or attempted repair may result in fire or explosion. GAS Control OUTLET. 1. FLANGE. CAUTION 1 DO NOT OVERTIGHTEN SCREWS. Never apply a jumper across or short the valve TIGHTEN TO 25 INCH POUNDS. M3087. coil terminals. This may burn out the heat anticipator in the thermostat or damage the Fig. 1. Install flange to gas Control . electronic Intermittent Pilot (IP) module. IMPORTANT Bushings These gas controls are shipped with protective 1. Remove the seal over the gas Control inlet or outlet.

7 Seals over inlet and outlet tappings. Do not 2. Apply moderate amount of good quality pipe com- remove the seals until you are ready to connect pound to the bushing, leaving two end threads bare. piping. On LP installation, use a compound resistant to LP. gas. Do not use Teflon tape. Follow the appliance manufacturer's instruc- 3. Insert the bushing into the gas Control and thread tions if available; otherwise, use the instructions the pipe carefully into the bushing until tight. provided below. Converting Between Natural and Using Adapters to Solve Swing LP Gas Radius Problems In some field service applications, it is difficult or impossible to thread the gas Control onto the gas supply pipe because of space limitations. This problem can be WARNING resolved in many instances by using an adapter. The Fire or explosion hazard.

8 Can cause property adapter is installed on the end of the supply pipe in place damage, severe injury, or death. of the gas Control , following the same precautions and instructions that are used for installing the gas Control . Do not attempt to use a gas Control set for After the adapter is installed, the gas Control is attached to natural gas on LP gas or a gas Control set for the adapter as outlined above. Note that using an adapter LP gas on natural gas. increases the overall length of the gas Control . 69-0625 03 2. VR8304 Intermittent Pilot Combination GAS Control . Choose Gas Control Location DROP. Do not locate the gas Control where it may be affected by PIPED GAS. HORIZONTAL. steam cleaning, high humidity, dripping water, corrosive GAS Control . chemicals, dust or grease accumulation, or excessive heat.

9 SUPPLY. RISER. To ensure proper operation, follow these guidelines. GAS. Locate the gas Control in a well ventilated area. Control PIPED. Mount the gas Control high enough above the GAS. 3 IN. cabinet bottom to avoid exposure to flooding or (76 MM) SUPPLY. splashing water. MINIMUM. Ensure the ambient temperature does not 2. exceed the ambient temperature ratings for each component. DROP. Cover the gas Control if the appliance is cleaned HORIZONTAL 3 IN. TUBING (76 MM). with water, steam, or chemicals or to avoid dust MINIMUM. GAS. and grease accumulation. 1. SUPPLY 2. Avoid locating the gas Control where exposure to corrosive chemical fumes or dripping water is likely. GAS. Control . Locate the gas Control in the appliance vestibule on the RISER. gas manifold. In replacement applications, locate the gas 3 IN.

10 (76 MM). Control in the same location as the old gas Control . MINIMUM. 2. Install Piping to the Gas Control 1 ALL BENDS IN METALLIC TUBING SHOULD BE SMOOTH. All piping must comply with local codes and ordinances or 2 CAUTION: SHUT OFF THE MAIN GAS SUPPLY BEFORE REMOVING. with the National Fuel Gas Code ( NFPA No. END CAP TO PREVENT GAS FROM FILLING THE WORK AREA. TEST. 54), whichever applies. Tubing installation must comply FOR GAS LEAKAGE WHEN INSTALLATION IS COMPLETE. M3077A. with approved standards and practices. 1. Use new, properly reamed pipe free of chips. If tub- ing is used, ensure the ends are square, deburred Fig. 2. Install a sediment trap. and clean. All tubing bends must be smooth and without deformation. 2. Run a pipe or tubing to the gas Control . If tubing is TWO IMPERFECT. used, obtain a tube-to-pipe coupling to connect the THREADS GAS Control .