CFM Corporation PVS-1 User's Manual
Contents
1. Make certain the power source is adequate for the fan motor requiremenis Do not add the Power Ven ter to a circuit where the total load is unknown This Power Venter System PVS 1 shall be installed with Sound Reducer Kit Nos SR 4 for fireplaces with a 4 102 mm flue collars and SR 5 for fireplaces with 5 127 mm flue collars See INSTALLATION RESTRICTIONS Page 5 Fan Assembly comes complete with 6 1 8 m power cord for plugging into a standard house receptacle The system is completely pre wired and includes the pressure switch and 24 volt transformer 2 3 24 Volt Wiring Harness a 40 12m wiring harness with plug in connectors Eliminates costly time con suming electrical installations Vent Terminal the device which exhausts flue gases into the atmosphere Fan Mounting Bracket to secure the fan in a vibra tion free mode so as to reduce vibration through the pipes Flex Connector an additional device to reduce vibration and noise through the pipes It is mounted to the negative inlet side of the fan Approved 4 102 mm diameter insulated aluminum flex liner 4 102 mm diameter B Vent or 4 102 mm diameter single wall metal vent connector Assorted clamps connectors and wall mounting brackets General Venting Information Always consult your local codes and authorities in the absence of such codes follow the current installa tion codes for gas burning ap2. Power Venting System Model PVS 1 for use with Decorative Gas Appliance Models MAJESTIC NVC33VN VP NVC36VN VP FIREPLACES NVC39VN VP NVC43VN VP INSTALLER CONSUMER SAFETY INFORMATION PLEASE READ THIS MANUAL BEFORE INSTALLING AND USING APPLIANCE WARNING If the information in this manual is not followed exactly a fire or explosion may result causing prop erty damage personal injury or loss of life FOR YOUR SAFETY Installation and service must be per formed by a gualified installer service agency or the gas supplier Do not store or use gasoline or other flammable vapors and liguids in the vicinity of this or any other appliance FOR YOUR SAFETY If you smell gas Do nottry to light any appliance Homeowner s Installation amp Operating Manual e Do not touch any electric switch do not use any phone in your building Immediately call your gas supplier from your neighbors phone Follow the gas supplier s instructions Ifyou cannot reach your gas supplier call the fire department Open windows Extinguish all flames PLEASE KEEP THIS MANUAL FOR FUTURE REFERENCE 51810 1 06 Rev 2 Majestic Fireplaces Power Venting System Installation Instructions General information and instructions for the power vent system model No PVS 1 NOTE The PVS 1 will only work in conjunction with a VN Gas Valve P N 57588 or VP Gas Valve P N 57587 1 Power Vent System Parts and Description de This power ve
3. UPPLY INLET EJ AREA WHERE TERMINAL IS NOT PERMITTED CFM145a Canadian Installations US USInstallations A Clearance above grade veranda porch 12 30cm 12 30cm deck or balcony B Clearance to window or door that may be 6 15cm for appliances 15cm for appliances opened lt 10 000Btuh 3kW 12 30cm a 000 Btuh 3kW 9 for appliances gt 10 000 Btuh 3kW and 23cm for appliances gt 10 000 lt 100 000 Btuh 30kW 36 91cm Btuh 3kW and lt 50 000 Btuh for appliances gt 100 000 Btuh 30kW 15kW 12 30cm for appliances 50 000 Btuh 15kW C Clearance to permanently closed window 12 305mm recommended to 12 305mm recommended to prevent window condensation prevent window condensation D Vertical clearance to ventilated soffit located above the terminal within a horizontal 18 458mm 18 458mm distance of 2 610mm from the center line of the terminal 3 91cm within a height of 15 4 6 m 3 91cm within a height of 15 4 6m extended above meter regulator assembly above the meter regulator assembly above the meter regulator assy J Clearance to nonmechanical air supply inlet 6 15cm for appliances lt 10 000 6 15cm for appliances to building or the combustion air inlet to any Btuh 3kW 12 30cm for lt 10 000 Btuh 3kW 9 other appliances appliances gt 10 000 Btuh 3kW and lt 23cm for appliances gt 10 000 100 000 Btuh 30kW 36 91cm Btuh 3k
4. W and lt 50 000 Btuh for appliances gt 100 000 Btuh 30kW 15kW 12 30cm for oes gt 50 000 Btuh 15kW an A diiveway located on public property balcony 1 In accordance with the current CSA B149 Installation Codes 2 In accordance with the current ANSI 7223 1 NFPA 54 National Fuel Gas Codes TA vent shall not terminate directly above a sidewalk or paved driveway which is located between two 2 single family dwellings and serves both dwellings only permitted if veranda porch deck or balcony is fully open on a minimum two 2 sides beneath the floor NOTE 1 Local codes or regulations may require different clearances 2 The special venting system used on Direct Vent appliances are certified as part of the appliance with clearances tested and ap proved by the listing agency 4 51810 Majestic Fireplaces Power Venting System Installation Horizontal Discharge Vertical Discharge 1 Slip Sound Reducer into flue collar and press on to fireplace top 2 Fasten Sound Reducer to fireplace top with four 4 sheet metal screws supplied 3 Continue with the power venter installation as per instructions supplied with same Oil Holes 4 102 mm Insu lated Flue Liner Motor Shaft Vertical Sound Reducer Sheet Metal K Screws a Fireplace Top Incorrect A FP1419 Fig 3 The Power Venter must be mounte
5. an should Control Circuit Voltage 24 be located as far from the appliance as possible PARAR E kanada AAA L AUK ada 60 A storage cupboard or laundry area are preferred RPM os kinan slova badzo czeko Ads 3000 locations Permanent access for inspection and Walls ici 95 servicing must be provided AMPS zra daski daa obk d ke 1 26 5 All portions of the vent system under positive pres Thermal Protection Yes sure during operation on the outlet side of the Mechanical AA A o KEG kwas Shaded Pole Motor Yes to prevent leakage of flue or vent gases into a build ing Int Fan Cooled RR yes Shaft Diameter inch 313 General Code Requirements Bearings astra esa nia Sleeve Type The exit terminal shall be so arranged that flue gases are not directed so as to jeopardize the safety of people overheat combustible structures or enter buildings and that proper clearances are maintained Always consult your local codes and authorities In the absence of such codes follow the current installa tion codes for gas burning appliances CSA B149 1 in Canada or ANSI Z223 1 NFPA 54 in the US Also see Diagram A Vent Termination Locations 51810 3 Majestic Fireplaces Power Venting System General Venting Information Termination Location INSIDE CORNER DETAIL Operable pad a Closed W EN N I ZEKE VENT TERMINATION AIR S
6. ch Pressure Switch must operate freely Verify proper operation by observing Opera tion Sequence at least every six months 51810 Majestic Fireplaces Power Venting System Pressure Switch Power Venter Motor Leads Heyco Gas Valve 1 AR Gol Switch On S ea X gt h Of Timer Relay White Red Stripe 20VA Transformer Vibration Isolation Optional Field Installed fa location for N m vibration isolator Van Power Venter Housing Power Venter Junction Box SZ CFM Corporation reserves the right to make changes in design materials specifications prices and discontinue colors and products at any time without notice Power Venter Part List Mounting Bracket 1 50543 Mounting Bracket 6 49552 Hose Clamp 51875 Motor Assembly Power Vent 51867 Switch Wall 51842 Vibration Insulator 50545 Plate Wall Switch 51843 Pressure Switch 52921 Timer Relay Post Purge 52901 Transformer 24 Volt Sound Reducer SR6 51810 10001694 49770 Fig 1 Majestic Fireplaces Power Venting System 10 51810 Majestic Fireplaces Power Venting System 51810 11 CFM Corporation 2695 Meadowvale Blvd Mississauga Ontario Canada L5N 8A3 800 525 1898 www cfmcorp com
7. d with motor shaft horizontal 3 Power Venter housing in single wall a 6 152 mm Fireplace clearance must be maintained Fig 4 FP1417 Combustible Material Fig 1 Secure sound reducer to fireplace top with four 4 sheet metal screws 6 152mm Minimum Installation Restrictions Sound Reducer Kit SR6 1 Although the Power Venter can be installed any where in the exhaust system it is best if it is installed as close to the termination of the vent system as possible to obtain optimal appliance efficiency and to prevent flue gas leakage Fig 2 E Power Venter es 1 52mm z 0 Minimum NOTE 6 152mm maximum clearance from combustible must be maintained S E o 2 L 2 n gt 2 E o O gt Vent Support Hangers Spaced 36 914mm on Horizontal Run 6 152mm Minimum Combustible Material FP1420 Fig 4 Minimum clearance 4 Allow for a minimum of 18 457mm vertical rise off the top of the appliance before the vent makes a 90 elbow to the horizontal Fig 5 5 Vent pipe transitions where necessary should be gradually tapered Fig 6 FP1418 Fig 2 It is best to install Power Venter as close to the termi 6 Power Venter to vent pipe connections and all joints nation as possible on the outlet side of the Power Venter must be sealed with high temperature silicone sealant or alu N e minum vent pipe tape to prevent flue gas leakage izontal to ensur
8. e proper operation of the fan proving Fig 7 switch and to prevent motor bearing wear Fig 3 2 Power Venter must be mounted with motor shaft hor 7 The vent terminal must not be more than 20 6m below the appliance s flue outlet 51810 5 Majestic Fireplaces Power Venting System 18 457mm A Minimum _ FP1421 Fig 5 An 18 457mm minimum vertical rise is necessary before a 90 elbow Incorrect Correct FP1423 Fig 6 Vent pipe transitions should be gradually tapered Power Venter Negative Pressure All seams on the positive side of power venter to be sealed with high temperature silicone sealant FP1422 Fig 7 Vent pipe connections and all joints on the outlet side of the power venter must be sealed with high temperature sealant Installation 1 Cut 6 159mm diameter hole through outside wall see General Code Requirements for proper loca tion 2 Install vent terminal Fasten from outside with four 4 screws and caulk around flange edge 3 Locate fireplace and fasten to floor as shown in fire place manual 4 Install optional sound reducer Model SRS or SR4 onto fireplace See Installation Instructions pack aged with sound reducer 5 Mount Power Venter NOTE It is best to locate the fan near the vent terminal However if such a location is not suitable the fan can be installed anywhere within the vent system a Remove vibration isolatio
9. mes the burner controller and will allow the appliance to operate only when the Power Venter is operating WARNING All 120 volt wiring must com A ply with applicable codes and ordinances The optional power venter Model PVS 1 is equipped with a plug in cord and an elec tric knockout When unit is wired directly the cord must be removed Install 24 Volt wiring harness Simply plug in connector at fan electrical box slide connectors onto gas valve operator and connect to power switch or if applicable to thermostat Refer to Figure 9 Be sure to keep wires away from heated areas within the fireplace route wires along gas line If optional fan and or power venter is used wire electrical system as shown in diagram Dotted Line Wiring connec tions must be made within junction box of power venter and optional fan Gas Valve Yellow Orange FP1426 Majestic Fireplaces Power Venting System Operation and Checking the Draft Insofar as is practical close all doors windows and air inlets to the building Turn on all exhaust fans range hood bathroom exhaust etc so they will operate at maximum speed Place appliance into operation See fireplace manual for gas start up information Once pilot has been lit and gas valve has been set open activate power switch or where applicable adjust thermostat so the appliance will operate continuously At this point the fan will start up and once air flow has been proven
10. n mount and retain the nut from the parts bag and install Install on Power Venter as shown in diagram Next install flexible duct piece and outlet collar using four 4 screws to fasten b To prevent vibration securely support Power Venter from ceiling or joist with Power Venter bracket Fig 8 c By using 1 25 mm bracket clearance to fan is maintained at 1 25 mm The addition of the 6 152 mm bracket maintains a 6 152 mm clear ance to combustibles Vertical Mounting Ceiling z N Power Venter 6 152 mm gt Bracket Bracket 1 25 mm Bracket gt Vibration Isolation Mounts gt Discharge Power Venter FP1424 Discharge Horizontal Mounting Wall or Wall Studs S Power Venter Bracket Fig 8 Power venter mounting options 51810 6 Measure distance between fireplace s flue outlet top of Sound Reducer and fan inlet Cut flexible duct and insulate with insulation sleeve sections using noise cone for ease of mounting Please note that wherever possible use continuous length pipe with out joints 7 Apply silicone at both ends and attach flex pipe to collars Secure with clamps provided For addition al reinforcement it is recommended that three 3 sheet metal screws be used at each joint to prevent pipe from accidentally separating 8 Iffan is located at vent terminal connect it by first sealing the joints with silicone Again use
11. nt system must be installed by a quali fied installer in accordance with all applicable local codes and with the current installation codes for gas burning appliances CSA B149 1 in Canada or ANSI Z223 1 NFPA 54 in the U S A Electrical connections and grounding must be in ac cordance with the Canadian Electrical Code C22 1 Part 1 and in U S A National Electrical Code ANSI NFPA70 and or local codes where applicable This device must be installed by a qualified profes sional installer in accordance with these instructions If improperly installed a hazardous condition such as an explosion or carbon monoxide poison could result The Power Vent System PVS 1 has been certified by CSA to be installed as a component part and is for use only with fireplace models listed in the front page of this manual Certification is cancelled if used with other than listed products Plan the vent system so that code required distanc es are maintained from plumbing and wiring The Power Venter motor shaft must be mounted horizontally to ensure proper operation of the fan pressure proving switch and to prevent motor bear ing wear Flue gas temperatures must not exceed 470 F at Power Venter inlet Ambient temperature must not exceed 104 F Disconnect power supply when making wiring con nections or when working around the fan blade and motor Failure to do so may result in severe personal injury and equipment damage
12. pliances CSA B149 1 in Canada or ANSI Z223 1 NFPA 54 in the US 1 2 Clearance to Combustible Materials e 1 25 mm for insulated single wall vent or flexible vent pipe e 6 152 mm for single wall fan housing e 1 25 mm for fan motor e 1 25 mm for B Vent e 6 152 mm for single wall vent or flexible vent pipe B Vent can only be used on the negative side of the power venter between the appliance and the power venter and insulated flexible liner or single wall vent on the outlet side of the power venter To reduce fan noise or condensation CFM Corporation recommends all venting pipes be insulated with a minimum of 1 25 mm fiber glass insulation Total allowable system length is 100 30 m of straight pipe Minimum allowable system length is 5 1 5 m NOTE Deduct 10 3 m for each 90 elbow and 5 1 5 m for each 45 elbow Example An installation requires 30 9 m of straight pipe with 45 and three 3 90 elbow Straight pipe 30 9 m 45 Elbow 1 5 1 5m 90 Elbow 3 30 9m TOTAL 65 19 5 m Total equivalent pipe length 65 19 5 m 51810 Majestic Fireplaces Power Venting System 3 Vent System Termination Power Venter Specifications Before installing Power Venter determine location of vent system termination Electrical 4 Location of the Fan Motor voltage 115 To keep the noise level to a minimum the f
13. the main burner will start After allowing appliance to operate for five 5 min utes test for spillage at the draft hood relief opening or at fireplace front opening Checking the Draft Allow the vent connected gas utilization equipment to operate for several minutes Then check to see that the combustion products are going up the chimney or gas vent properly by passing a lighted match or taper around the edge of the relief opening of the draft hood If the chim ney or gas vent is drawing properly the smoke from the match flame will be drawn into the draft hood or opening If smoke is not drawn in then the combustion products are escaping from the relief opening into the room Under these conditions the equipment must not be operated until proper adjust ments or repairs are made to provide adequate draft through the chimney or gas vent Next turn on all other fuel burning appliances within the same room so they will operate at their full input Repeat Step C above checking the draft on each appliance The Air Flow Adjustment on the Power Venter is fac tory set for maximum air flow Operating a properly sized Power Venter at maximum setting will assure that combustion gases are safely removed to the outside If the Power Venter has excess venting capacity than what is required for this application operating the Power Venter with the Air Flow Adjust ment at the maximum setting may draw more dilu tion air than necessar
14. three 3 sheet metal screws for each joint 9 Seal all joints with aluminum vent pipe tape and cover with insulation Joints between fan and vent terminal must be absolutely air and water tight to prevent flue gas or condensation leakage 10 Support venting duct with plumber s strap supplied by installer On horizontal runs support vent pipe every 36 914mm to prevent it from sagging 11 Enclose venting system if necessary leaving at least 1 25 mm clearance between insulation and combustible materials and 6 152 mm between fan housing and combustibles 115 1 60 N O Relay Black Thermostat Fig 9 Typical wiring 24 VAC control 51810 Transformer 20 VA Relay Coil Majestic Fireplaces Power Venting System Electrical Wiring Electrical connections and grounding must be in ac cordance with the Canadian Electrical Code C22 1 Part 1 and in U S A National Electrical Code ANSI NFPA70 and or local codes where applicable Operation Seguence of 24 VAC Controlled Appliance When Power Vent Switch is activated its closure completes the 24 VAC electrical circuit from the ap pliance transformer through the switch to the Power Venter relay The 24 volts applied to the relay coil bring in the 115 volt power to the motor The air movement generated by the Power Venter closes the Fan Proving Switch contacts which allows the switch signal to reach the 24 volt burner control The Fan Proving Switch actually beco
15. y The Air Flow Adjustment may be set by use ofa combustion analyzer inclined manometer or draft gauge Alternatively the Air Flow adjustment can be set using a smoke candle or taper as follows a With exhaust fans operating air inlets closed and all appliances firing as instructed above hold lighted match or taper around the edge of the re lief opening of the draft hood or fireplace opening b Set Air Flow Adjustment by loosening locknut and turning rod handle CAUTION HANDLE MAY BE HOT use pliers to move handle Position of rod handle on outside of Power Venter housing indicates position of Air Flow Adjustment inside housing c Using pliers move handle towards minimum draft setting until spillage is detected at relief opening then re open Adjustment just enough to eliminate spillage d Lock Adjustment at desired setting by tightening locknut e Return doors windows exhaust fans and fire place dampers to their previous condition of use f Turn off appliances started in Step 4 above Fig 10 Adjustable damper control Maintenance The Power Venters must be inspected semi annually Points of inspection are 1 Motor Motor must rotate freely Oil every six months of operation with four 4 drops of SAE 20 oil 2 Wheel Wheel must be clean of soot ash or any other coating which inhibits rotation or air flow Re move all foreign material from vent system before operation 3 Pressure Swit
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