FIELD CONTROLS PVO-600 User's Manual
Contents
1. 7 ERGs Model PVO 300 PVO 600 Included is one ETL and cETL listed Power Venter to be used primarily with a single 120VAC controlled oil fired furnace boiler or water heater The PVO may be used to common vent multiple appliances with the addition of a Control Kit Please consult Field Control s Technical Support for other options TYPICAL VENTING SYSTEM COMPONENTS One PVO Series Power Venter with pre wired controls adjustable post purge relay timer adjustable draft proving switch direct access terminal blocks and piping tee for multiple appliance systems e Side Wall Vent Hood Not included e Spill Switches Not included e CK Series Control Kit for multiple appliance venting Not Included CONTENTS PAGE Unit Specifications System Operation Power Venter Sizing Installation Safety Instructions Installation of Power Venter General Wiring Instructions Airflow Adjustments Pressure Switch Adjustments Post Purge Timer Adjustments Multiple Appliance Systems General Installation Inspection Maintenance Replacement Parts List Venting System Operational Information 10 Installation Information 10 This device MUST be installed by a qualified agency in accordance with the manufacturers installation instructions The definition of a qualified agency is any individual firm corporation or company which either in person or through a representative is engaged in and is responsible for the installation and operation2. SWG Series Power Venter Must Be Mounted At Least 3 Feet From Inside Corners SWG Series Power Venter Must Be At Least 1 Foot Above Doors Or Windows e I s _ SWG Series Power Venter Must Be At 4 Least 7 Feet Above Public Walkways _ H SWG Series Power Venter Must Be At Least 3 Feet Above Any Outside Air Intake Within 10 Feet SWG Series Power Venter Must Be At Least 4 Feet To SWG Series Power Venter e e Of Any Doors Or SWG Series Power Venter Must Be AtLeast 4 Feet Below Must Be Mounted At Least Ingows 1 Foot Above Finished Grade Diagram A INSTALLATION SAFETY INSTRUCTIONS CAUTION This device must be installed by a qualified installer in accordance with the manufacturer s installation instructions Appliances should have a minimum of 75 combustion efficiency or have a maximum measured flue gas temperature of 550 F at the inlet of the venter 1 The power venting system must be installed by a qualified installer Qualified Installer shall mean an individual who has been properly trained or a licensed installer The installer must write or imprint his name phone number and date of installation on the installation tag The tag should be attached to the power venter unit Recording burner and venting system initial operational information is recommended as a guide for service or burner tune up Enter this on the back page of this manual Safety inspection of a venting system shoul
3. CK 61 For operation with all 120VAC oil fired systems Includes draft proving switch adjustable electronic post purge timer RJR isolation relay and WMO 1 secondary safety switch CK 62 Same as CK 61 except has thermally activated post purge CK 63 For operation with all 120VAC oil fired systems Includes draft proving switch adjustable electronic post purge timer and WMO 1 secondary safety switch SYSTEM OPERATION 1 The thermostat wall thermostat or aquastat calls for heat and energizes a relay which activates the power venter After the venter motor has come up to speed the pressure switch closes This completes the circuit to the burner and allows the burner to fire 2 After the heating requirement has been satisfied the thermostat circuit will open and de activate the burner and power venter circuit 3 The power venter continues to operate for a period of time after the burner has shut off to purge remaining flue gases Page 2 POWER VENTER SIZING In order to choose the correct size power venter for a particular installation the total input firing rate and total equivalent length of vent pipe to be used must be known Refer to Table 2 to determine the maximum allowable equivalent feet of pipe for each model used with the pipe diameters shown When venting multiple appliances add the input of each appliance to determine the total input Always choose a power venter that is capable of handling more than the system req
4. NOTE On some Riello burners P is replaced with L Capacitor Diagram C Page 6 MULTIPLE APPLIANCE SYSTEMS _ TUBE TO ADDITIONAL When using one PVO power venter to common vent more than one CONTROLKITS appliance a Control Kit is required for each additional appliance 1 Connect the negative pressure port of each air pressure fan proving switch on all Control Kits being used to the provided tee mounted on the PVO See Figure 4 2 Remove the cap from the branch of the tee and use the ferrule and compression nut provided in the small envelope with the PVO to attach the connecting tube 3 Refer to the instruction sheet included with each Control Kit for specific instructions for that kit including wiring diagrams ADJUSTMENTS Figure 4 AiR FLOW ADJUSTMENT NOTE Before installing refer to the General Installation Inspection to check for negative pressure problems in the building 1 To adjust the power venter air flow open the choke plate 1 2 to of the way open See Figure 5 Follow the appliance manufacturer s procedures for starting the heating appliance 2 Adjust the thermostat to call for Heat After the system has operated for several minutes to stabilize flue gas temperatures use a draft gauge velocity meter or match test procedure to check for negative draft or up draft at the heating appliance outlet or air flow into the draft hood 3 Adjust the inlet choke damper on the power venter i
5. by the match test procedure The match test is in accordance with National Fuel Gas Code A N S 1 Z223 1 Section 8 6 On heating appliances not equipped with a draft hood a barometric draft control MUST be installed to regulate proper air flow and fluctuations in the system s air flow during operation Fluctuations can come from wind loads on the outlet of the venter house depressurization during windy days and the different house ventilation requirements between summer and winter operation Use a Field Controls Type MG 1 Barometric Draft Control Gas fired draft induced systems should have a single acting or double acting barometric draft control installed Page 4 INSTALLATION OF POWER VENTER CAUTION Failure to install maintain and or operate the power venting system in accordance with manufacturer s instructions will result in conditions which may produce bodily injury and or property damage 1 Remove power venter from box and inspect unit for damage If the carton has been crushed or mutilated check unit very carefully for damage Rotate venter wheel to insure that the motor and venter wheel rotate freely DO NOT install if any damage is apparent Refer to unit sizing chart to check proper venting sizing 2 Location of the termination of the venting system should be installed in accordance with the National Fuel Gas Code A N S 1 Z233 1 manufacturer s recommendations and or local codes which are applicable See the following requireme
6. d be performed before and after installing a power venting system on an existing or new appliance Procedures to follow are those recommended by the National Fuel Gas Code A N S 1 Z223 1 or refer to the General Installation Inspection section of this manual Plan the vent system layout before installation to avoid the possibility of accidental contact with concealed wiring or plumbing inside walls Single wall vent pipe may be used to join an appliance to the venting system but if proper clearances cannot be maintained from combustible materials Class B Vent Pipe should be used for gas appliances Refer to national or local codes for guidelines Disconnect power supply before making wiring connections to prevent electrical shock and equipment damage This equipment is designed to overcome minor negative pressure conditions To ensure extreme negative pressure does not exist follow the General Installation Inspection section of this manual Heating appliances equipped with draft hoods such as boilers or furnaces LP and natural gas appliances SHOULD have a secondary spillage switch installed On appliances without draft hoods it is recommended that the secondary safety switch GSK 3 be installed into the system Gas fired 30 millivolt power systems MUST be equipped with a spillage switch Air flow adjustment MUST be made to ensure appliance efficiency This should be done at the appliance exhaust outlet with a velocity meter draft gauge or
7. ed Vertical Vent or Vertical Vent or Chimney with 9 Chimney with Chimney Liner Chimney Liner PV Series Power Venter Draft Control Draft Control or or PV Series Draft Hood Draft Hood Power Venter Diagram D Page 9 REPLACEMENT PARTS LIST The following items are available for replacement if necessary REPLACEMENT PARTS LIST DESCRIPTION PVO 300 PVO 600 Blower Wheel 46033400 46089400 Post Purge Relay Timer 46144700 4614470 Pressure Switch 46311000 46311000 VENTING SYSTEM OPERATIONAL INFORMATION INSTALLATION INFORMATION MODEL NO PVO INSTALLER S NAME INSTALLER S COMPANY INSTALLER S PHONE NO DATE OF INSTALLATION Page 10 Page 11 FIELDCONTROLS e e m The Venting Solutions Company PNdeS iSO Rev E4007
8. ght of the material employed to maintain clearances prevent physical damage and separation of joints A vent pipe increaser or reducer may be required for connecting the venter to the vent system Smaller vent pipe sizes than a chimney vented system may be used for the vent system Route the vent pipe from the appliance to the venter using a minimum number of elbows as possible The horizontal section of the vent pipe should have a slight upward slope from the appliance to the venter For clearances to combustible materials multiple appliance venting and other installation requirements refer to the National Fuel Gas Code ANSIZ223 1 and or any applicable local codes or appliance manufacturer s installation instructions GENERAL WIRING INSTRUCTIONS CAUTION Disconnect electrical power before wiring power venter The PVO is designed to be used with appliances with 120VAC control systems Wire the venter motor and controls in accordance with the National Electric Code and or applicable local codes UNIT MUST BE GROUNDED Check ground circuit to make certain that the unit has been properly grounded The wiring should be protected by an over current circuit device rated at 15 amperes CAUTION MUST be taken to ensure that the wiring does not come in contact with any heat source All line voltage and safety control circuits between the venter and appliance MUST be wired in accordance with the National Electrical Code for Class 1 wiring or equivalent meth
9. ix drops of SWG Superlube Part 46226200 annually The PVO 300 has sealed ball bearings and therefore does not need to be oiled Blower Wheel Inspect the blower wheel annually to clear any soot ash or coating which inhibits either rotation or air flow Remove all foreign materials before operating Vent System Inspect all vent connections annually for looseness for evidence of corrosion and for flue gas leakage Replace seal or tighten pipe connections if necessary Check the power venter choke plate to insure it is secured in place Check the barometric draft control if installed to insure the gate swings freely System Safety Devices With the heating system operating disconnect the pressure sensing tube from the pressure switch on the venter This should stop the burner operation Re connecting the tube will relight the burner Page 8 PV SERIES POWER VENTER VERTICAL VENTING OPTION Diagram D illustrates correct and incorrect installation of PV series venter in vertical vent configuration except PVE 1200 The correct installation maintains the required vertical position of the pressure switch the incorrect installation does not The following conditions must also be observed e Natural gas lp gas or 2 fuel oil appliance rated at 75 or greater non condensing type of appliance e Maximum input temperature at power venter 575 F CORRECT Chinen Cap INCORRECT Chines Ca except PVE 1200 45 or 90 Connection i recommend
10. n or out to obtain the minimum air flow required to maintain draft Then increase air flow Ai NS PLATE slightly 10 over minimum air flow rate to ensure proper venting POSITION MOVEMENT For power burners adjust draft to proper over fired draft Figure 5 If using a barometric draft control use the draft control to fine tune the system draft PRESSURE SWITCH ADJUSTMENT 4 If proper draft has been established secure the choke plate by DECREASE INCREASE tightening the screws on the inlet collar SENSING SENSING ges PRESSURE PRESSURE 5 Shut off thermostat and check for residual heat spilling from the draft hood or draft control If this occurs increase the post purge time on the timer NOTE After proper venting has been established it is recommended that a combustion test and a smoke test be performed to ensure Z 4 maximum burner efficiency Oil burner air adjustments should be setata PRESSURE ADJUSTMENT zero to a trace smoke at the highest or recommended CO setting set by heating equipment manufacturer Figure 6 PRESSURE SWITCH ADJUSTMENT 1 With the venter air flow set and the appliance operating at the best operating efficiency adjust the pressure switch by rotating the adjustment screw clockwise until the burner shuts off 2 Rotate the adjustment screw counterclockwise until the burner fi
11. nts or refer to Diagram A for typical locations a The exit termination of mechanical draft systems shall not be less than 7 above grade when located adjacent to public walkways b A venting system shall terminate at least 3 above any forced air inlet located within 10 c The venting system of other than a direct vent appliance shall terminate at least 4 below 4 horizontally from or 1 above any door window or gravity air inlet into the building When venting oil fired equipment with a Field Control s CAS 2 series Airboot kit the intake air hood can be mounted within 12 inches of the power venter exhaust d The vent termination of a direct vent appliance with an input of 50 000 BTU Hr or less shall be located at least 9 from any opening through which vented gases could enter the building With an input over 50 000 BTU Hr a 12 termination clearance shall be required e The vent termination point shall not be installed closer than 3 from an inside corner of an L shaped structure f The vent termination should not be mounted directly above or within 3 horizontally from an oil tank vent or gas meter g The bottom of the vent terminal shall be located at least 12 above finished grade CONNECTING VENTER TO APPLIANCE The venting system should be installed and supported in accordance with the National Fuel Gas Code ANSIZ223 1 or in accordance with any local codes A vent pipe connector shall be supported for the design and wei
12. ods Refer to wiring diagrams B amp C for typical wiring For other wiring diagrams please contact Field Control s Technical Support NOTE When applying power to the PVO for the first time the venter motor may or may not run for up to 10 minutes This is normal and will not affect the operation of the system Page 5 POLARITY SENSITIVE To furnace limit or L1 Hot boiler control L2 Neutral PVO WIRING BLOCK Orange i Primary Control Honeywell R8184G or equivalent L S0HZ Optional WMO 1 d Burner WARNING Reversed polarity Motor may cause equipment damage i New wire supplied by installer CE Solderless connector wire nut i L1 is 120V j Ignition _White Nis 120V Neutral Transformer M is 120V if the motor is running T1 is 120V if there is a call for heat T2 is 120V Neutral T3 is 120V if there is a call for heat Diagram B POLARITY SENSITIVE L1 Hot L2 Neutral WARNING Reversed polarity may cause equipment damage New wire supplied by installer Solderless connector wire nut L1 is 120V FUSE 15A N is 120V Neutral PVO M is 120V if the motor is running T1 is 120V if there is a call for heat WIRING BLOCK LINE SAFETY T2 is 120V Neutral SWITCH T3 is 120V if there is a call for heat ilk z r Black e QO O 0 O 0 OPERATING LIMIT SWITCH COMMON White GROUND Green HOT LINE 5 OPTIONAL WMO 1 SPILL SWITCH SAFETY LIMIT i SWITCH j
13. of gas appliances who is experienced in such work familiar with all the precautions required and has complied with the requirements of the authority having jurisdiction ODONINN ET aawnn DO NOT DESTROY THESE INSTRUCTIONS MUST REMAIN WITH EQUIPMENT FIELDCONTROLS The Venting Solutions Company 2630 Airport Road Kinston NC 28504 Phone 252 522 3031 Fax 252 522 0214 www fieldcontrols com UNIT SPECIFICATIONS See Table 1 and Figure 1 Table 1 UNIT DIMENSIONS INCHES B D j w woes w w or wo o R rE OS p Inlet and outlet diameter A ELECTRICAL RATINGS LY T MODEL vac nz RPM WATT amp TP Pvo soo 120 60 sooo 145 21 Yes Figure 1 Pvo soo 120 60 sooo 167 15 ves Thermally protected motor SIDEWALL VENT HOODS Model SWH 1 Sidewall vent hoods are available in the following sizes The vent hood should be chosen that matches the outlet size of the Power Venter See Figure 2 NOTE When using different sizes consider reducers and specific size pipe when determining equivalent length of vent pipe SWH 1 3 3 inch SWH 1 4 4 inch SWH 1 5 5 inch SWH 1 6 6 inch SWH 1 8 8 inch Figure 2 CONTROL KITS The following Control Kits can be used to common vent multiple appliances with on PVO unit
14. res 3 Rotate the adjustment screw an additional 1 4 turn counterclockwise to insure proper switch setting See Figure 6 Post PURGE TIMER ADJUSTMENT To adjust the post purge time refer to Figures 7 amp 8 Figure 7 For timer that looks like Figure 7 Rotate the timer adjustment on the timer clockwise to increase the operation time To decrease the operation time rotate the timer adjustment counterclockwise ADJ DELAY CONTROL The Field Controls Co L L C For timer that looks like Figure 8 Rotate the timer adjustment on the aoe timer counterclockwise to increase the operation time To decrease the ii N CONTROLS operation time rotate the timer adjustment clockwise ADJ DELAY CONTROL l Typical post purge time should be between 3 to 5 min Figure 8 Page 7 GENERAL INSTALLATION INSPECTION Follow recommended procedures for safety inspection of a heating appliance in accordance with the National Fuel Gas Code A N S I Z223 1 The following procedure will help in evaluation of the venting system It is intended as a guide to aid in determining that the appliance is properly installed and is in a safe condition for continuous use This is a generalized procedure which cannot anticipate all situations Accordingly in some cases deviation from this procedure may be necessary to determine safe operation of the equipment If it is dete
15. rmine that the main burner is burning properly i e no floating lifting or flashbacks Adjust the primary air shutter as required by the appliance manufacturer If the appliance is equipped with high and low flame control or flame modulation check for proper main burner operation at both flame levels If appliances are equipped with high and low flame control or flame modulation check for proper main burner operation at low flame Test for exhaust gas spillage at the draft hood or the barometric draft control after approximately 5 minutes of main burner operation Use a draft meter or flame or smoke from match candle or cigarette If spillage occurs adequate air is not available Shut off heating appliance thermostat and check for spillage around the draft hood barometric draft control or burner inlet air location after power venter has stopped operation If a flow reversal is noticed house depressurization is occurring and make up air is required For oil fired systems this may be noticed by oil fume smell after post purge cycle Turn on all fuel burning appliances within the same room so that they operate at their maximum capacity Then repeat Steps 5 and 7 Return all doors windows exhaust fans fireplace dampers and any other fuel burning appliances to their previous condition MAINTENANCE 1 Motor Inspect the motor once a year motor should rotate freely To prolong the life of the PVO 600 motor it must be lubricated with s
16. rmined that a condition which could result in unsafe operation exists the appliance should be shut off and the owner advised of the unsafe conditions Corrections must be made prior to allowing continuous operation The following steps should be taken in making a safety inspection 1 2 Visually inspect the venting system for proper size and determine that there is no blockage restriction leakage corrosion or other deficiencies which could cause unsafe operation To the extent possible close all building doors windows and all doors to the room in which the heating appliance is located Turn on clothes dryers and any exhaust fans so that they operate at maximum speed Do not operate a summer exhaust fan Also close all fireplace dampers If after completing steps 3 through 7 it is believed that sufficient combustion air is not available refer to the National Fuel Gas Code A N S I Z223 1 or any local codes for proper guidelines Place the appliance being inspected into operation Follow the lighting instructions and adjust the thermostat so that the heating appliance will operate continuously Determine that the burner is operating properly and that the main burner ignition functions satisfactorily by interrupting the electrical power of the appliance in any safely convenient manner Test the burner safety device to determine if it is operating properly by extinguishing the pilot or disconnecting the flame safety circuit Visually dete
17. uires The choke plate can be adjusted to compensate for the difference Table 2 MAXIMUM EQUIVALENT HORIZONTAL PIPE LENGTH FEET VENTER MODEL NO AND VENT PIPE DIAMETER BTU HR INPUT PVO 300 PVO 600 O e im pm oe oO ESERE RENEE D 400 3 75 PROCEDURE FOR CALCULATING TOTAL EQUIVALENT PIPE LENGTH IN FEET 1 Calculate the total equivalent feet for each type of fitting used in the venting system from the following chart 2 Calculate the total amount of feet for the straight lengths of vent pipe 3 Add the equivalent feet for the fittings with the total amount of feet of straight lengths Table 3 EQUIVALENT LENGTH FEET OF VENT PIPE FOR VENT PIPE FITTINGS VENT PIPE FITTINGS VENT PIPE DIAMETER TEE 90 ELBOW 45 ELBOW REDUCER Reducer or increaser ratio d D small diameter divided by the larger diameter See Figure 3 Example 4 to 8 reducer the reducer ratio is d D 4 8 1 2 To estimate the equivalent foot length for the fitting use the smaller pipe diameter for the equivalent length figure Example 4 to 8 reducer the reducer ratio is 1 2 and the smaller pipe diameter is 4 So from the chart the equivalent feet would be 7 feet Example System Pipe Size 4 ha Step 1 2 90 Elbows 4 14 Ft d D Step 2 10 2 Ft Lengths of 4 Pipe 20 Ft L Step 3 Total Equivalent Feet 14 Ft 20 Ft 34 Ft oa Figure 3 Page 3 SWG SERIES POWER VENTER INSTALLATION LOCATIONS
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