7137FCHVentGuideOil_New:7137FCHVentGuideOil 5/8/08 10:42 AM Page 1 Venting for Oil Applications O I L V E N T I N G G U I D E w w w . f i e l d c o n t r o l s .
7137FCHVentGuideOil_New:7137FCHVentGuideOil 5/8/08 10:42 AM Page 3 Field Controls Product Evolution Field Controls has made products for the oil and gas heating markets since 1927. Starting with draft controls for large, commercial furnaces, Field quickly began to develop products for the residential market. Today Field 1982 Controls focuses on draft control, combustion air, and power venting … products that improve and support oil and gas burning equipment.
7137FCHVentGuideOil_New:7137FCHVentGuideOil 5/8/08 10:42 AM Page 4 The Evolution of Venting As long as people have used fire to heat, it has been necessary to vent the smoke and combustion gases from the dwelling. Since heat rises, the natural solution was to allow the gases to vent through the roof via a hole or chimney. For centuries, this "natural draft" style of venting has been the accepted standard for venting stoves, furnaces and boilers.
7137FCHVentGuideOil_New:7137FCHVentGuideOil 5/8/08 10:43 AM Page 5 The Evolution of Venting Direct Venting Power Venting with Combustion Air In response to the growing use of direct vent burners, Field Controls developed the Field Direct™ Venting System in 2005. The FDVS is included as part of the original equipment on many popular brands of furnaces and boilers and is not yet available through wholesale distributors.
7137FCHVentGuideOil_New:7137FCHVentGuideOil 5/8/08 10:43 AM Page 6 ComboVent™ Combustion Air. Power Venting. Combined. Introducing the most versatile, easiest to install, easiest to service, all inclusive combustion air/vent system ever made. NEW A total system for combustion air and venting.
7137FCHVentGuideOil_New:7137FCHVentGuideOil 5/8/08 10:44 AM Page 7 SWG Stainless Power Venter Benefits of the SWG Power Venter include: • 100% negative pressure in the vent pipe for maximum safety. • Standard galvanized pipe can be used instead of expensive stainless steel. • No need to seal vent pipe joints, saving time and money. • Significantly longer vent lengths than positive pressure, direct vent systems. • The SWG is recommended by major heating appliance manufacturers.
137FCHVentGuideOil_New:7137FCHVentGuideOil 5/8/08 10:44 AM Page 8 Sizing The Power Venter Size the Power Venter based on the input firing rate of the appliance. If the power venter is being used to vent multiple appliances, add the input firing rates for each appliance and use that total to size the venter. Knowing the total input GPH for oil, the venter can be sized from Table 1. Select the venter rated closest to the total input GPH for installation.
7137FCHVentGuideOil_New:7137FCHVentGuideOil 5/8/08 10:44 AM Page 9 Locating The Power Venter Calculating Equivalent Feet of a Vent System Using a Reducer/Increaser Procedure Step 1 2-90° Elbows (4") = 14 Ft. Step 2 10-2 Ft. Lengths of 4" Pipe = 20 Ft. Step 3 Total Equivalent Feet = 14 Ft. + 20 Ft. = 34 Ft. Table 2 Vent Pipe Fittings Tee Y-Connection 90° Elbow 45° Elbow Small Pipe Size Large Pipe Size 1.
7137FCHVentGuideOil_New:7137FCHVentGuideOil 5/8/08 10:45 AM Page 10 Clearance to Combustibles If mounting the venting system near combustible materials, refer to Diagram A for allowable installation clearances. Clearances are based on an installation using single wall galvanized steel vent pipe. If manufactured double wall vent pipe is required or used for the installation, clearance should be based on the vent pipe’s rated clearance. Always check local code requirements for code restrictions.
7137FCHVentGuideOil_New:7137FCHVentGuideOil 5/8/08 10:45 AM Page 11 Control Kits Control Kits ✓ ✓ CK-62 All oil-fired systems. Has thermally activated post purge. ✓ ✓ CK-63 All oil-fired systems. (May require optional delay oil valve for simultaneous burner operation.) ✓ ✓ Applications RJR-6 120V Relay All oil-fired systems. Has adjustable electronic post purge.
7137FCHVentGuideOil_New:7137FCHVentGuideOil 5/8/08 10:45 AM Page 12 System Setup SYSTEM SETUP: Figure 1 shows a typical oil-fired appliance and the expected ranges of several readings taken at various locations in the system. Note: If a vent pipe reducer is required, use a smooth walled gradual reducer. Place it at the venter inlet as shown in Figure 1. 1. Set the choke plate in the power venter, or extension kit, to its full open position.
7137FCHVentGuideOil_New:7137FCHVentGuideOil 5/8/08 10:45 AM Page 13 System Setup and Maintenance 6. Once proper draft is achieved, measure CO2 and smoke level. If necessary, adjust the intake airflow at the burner to obtain the highest possible CO2 reading with a zero smoke reading. As the intake airflow is increased or decreased, the draft may change. Repeat steps 3 through 6 to re-adjust the draft control and choke plate before attempting any other adjustments. 7.
7137FCHVentGuideOil_New:7137FCHVentGuideOil 5/8/08 10:46 AM Page 14 FieldDirect™ Venting System Benefits of FieldDirect Venting System • No adverse reactions to direct wind loads up to 50mph. • Burner efficiency actually improves under direct wind load. • Decreased chance of exhaust gases recirculating into the structure. • Virtually impossible for snow to block the air intake. • Stainless 316 construction. • Inner pipe is angled to drain condensation outside.
7137FCHVentGuideOil_New:7137FCHVentGuideOil 5/8/08 10:46 AM Page 16 www.fieldcontrols.com Field Controls, LLC | www.fieldcontrols.com | 2630 Airport Road | Kinston, NC 28504 | TEL: 252.522.3031 | FAX: 252.522.0214 ©2008 Field Controls form# 4318 Printed in U.S.A.