Master Flow PG3X Instructions / Assembly
Contents
1. E brackets are firmly fastened to shroud MOUNTING BRACKETS rackets so end is flush sunt on gable end behind rs Fig 3 or 4 Automatic Gable Shutter part number GM20 sold separately pre punched over 16 on center install Ic upports 14 apart ount the unit with screws or nails to the supports through the pre punched brackets Fig 6 ALL UNITS CAUTION Automatically operated device Disconnect power supply before wiring the ventilator into existing circuit Be sure fan blades turn freely before restoring power All wiring must be in accordance with state and local codes NOTE FOR HOMES WITH A GAS FURNACE LOCATED IN THE ATTIC The ventilator must be wired with a switch or other interlocking device to prevent the furnace and ventilator from operating at the same time during the heating cycle We recommend that this switch not provided be installed by a qualified person in accordance with all applicable codes and standards a ee 120 Volt Source Cable Fig 8 connector not included Power Wire Connected to Black Wire on Thermostat connected on Thermostat Fin ae math oe Le nii eae Pas Nis peste ae WIRING All Units PT 6 Thermostat Remove the thermostat cover Mount the thermostat to the edge of an adjacent stud or rafter using pre punched holies in the box as shown in Fig 7 e Make sure that the thermostat element opening on the back of the box is not cove2. Gable Mounted Power Vent Installation Instructions visit us at www gaf com l Quality You Can Trust Since 1886 from North America s Largest Roofing And Ventilation Manufa urer Master Flow Hdqts 877 GAF COOL Eastern Sales Office 732 297 0091 Southwest Sales Office 214 637 1060 877 423 2665 Central Sales Office 815 372 9701 Western Sales Office 909 360 4200 Southeast Sales Office 813 248 6202 Canadian Sales Office 800 555 1852 2003 GAF Materials Corporation 1361 Alps Road Wayne NJ 07470 GAF MATERIALS CORPORATION gt AL gt COMPLETE AND RETURN WARRANTY REGISTRATION FORM ON BACK COVER IN Warranty registration not required for coverage SAVE these instructions READ all instructions before starting the installation risk of fire electric shock or injury to persons observe the following precautions G ppropriate safety glasses gloves hard hats restraints and other equipment to avoid accidents 2 Observe all applicable building codes GB Use this unit only in the manner intended by the manufacturer lf you have questions contact the manufacturer 4 Before servicing or cleaning unit switch power off at service panel and lock service disconnecting means power supply to prevent power from being switched on accidentally When the service disconnecting means power supply cannot be locked securely fasten a prominent warning device such as a tag to the service panel 5 installation w
3. e attic When the attic is cooler than the house as in the winter the air cools and loses its ability to hold this moisture which then begins to condense Moisture comes from every day living activities such as cooking bathing and even breathing Humidifiers add a great deal of moisture and can be a major factor especially in homes which don t have a vapor barrier installed between the living areas and the attic Also be sure that all bathroom and kitchen exhaust fans and dryers are vented to the outside not into the attic m What should I set the humidistat on in summer You may want to set the humidistat to STOP in summer This will keep it from running needlessly as humidity control is in most instances only needed in winter What should I set the humidistat on in winter We recommend that you start by setting the humidistat at 70 Monitor the attic conditions and adjust if necessary lowering the setting if there appears to be an excess of moisture raising it if the fan seems to run too long What is the amp rating on the H1 humidistat The humidistat is rated for loads up to 7 5 amps at 120 volts Each fan unit should have its own humidistat MOTOR amp How often should I oil the motor 7 Our power vents do not require the motor to be oiled G3 o What temperature should set the thermostat at Recommended setting is 105 F fan ON temperature for the most effective op
4. ension Cord e Power Saber or Jig Saw e Safety Eyewear e Claw Hammer and or Handsaw e Utility Knife e Screw Driver e Pencil or Marker R ATTIC VENTILATION INTAKE san HOFUNDEREAEES sorar Fasaa vents x ince x l gt 7 UP TO 3200 Always have a balanced ventilation system In no case should the amount of exhaust ventilation exceed the amount of intake ventilation ROOF PITCH EXAMPLES oo NOTE When using more than one gable mounted J a n power vent it is critical that adequate intake ventilation preferably undereave or soffit is available if only gable louver intake is available never install more than one gable mount power vent NR NOT RECOMMENDED NYLOK NUT AND BOLT BAG BOLTS 8 NUTS 8 Frey BHU Carefully remove power attic GM30 PSG3 CPG2 ventilator from carton f Remove assembly hardware kit from carton NYLOK NUT NOTE eee ORIENTATION OF NUT lt ee am ay Kit includes 8 bolts 8 Nylok nuts and 4 mounting brackets Te wa Lae Take the mounting bracket long side and align with 2 holes on the shroud With holes aligned take 2 bolts with the head on the inside of the shroud and push through the F P E P I a i 1 SHROUD y Boreetene ee ET a holes Take the Nylok nuts and fasten to each lead ne bolt Repeat these steps until all 4 mounting A ar
5. eration How high or low does the thermostat go The PT6 thermostat adjusts from 60 F to 120 F degrees Turned all the way counter clockwise cooler fan comes on at 76 F Turned all the way clockwise hotter the fan comes on at 115 F In the normal setting the fan comes on at approximately 100 F a What s the amp rating on the thermostat The PT6 has a maximum Full Load Amp FLA rating of 6 amps at 120 volts Each fan should have its own thermostat Can I use your thermostat on a 1 3 etc hp motor As a safety factor the motor amps should not be more than 75 of the thermostat amp fiba Can I run two units on one thermostat Each fan should have its own thermostat ne two or more units on one thermostat is not recommended Does it matter which black thermostat wire connects to the motor and which one connects to the house power No it makes no difference on PT6 thermostats THERMOSTAT NOT ACCURATE Gs The fan doesn t turn off on at the temperature setting Is it defective or thermostats which come with the single speed units are tested to be accurate to 5 degrees F The differential the difference between the ON temperature and the OFF temperature will vary from 5 to 15 degrees While it may seem like a very broad range these units are designed to vent hot air out of attics an application which doesn t call for a high degree of accuracy Installation may be a factor with units that don
6. now FIRE Can the motor catch fire All of our motors have a built in thermally operated overload which will interrupt power to the motor in the event that the motor windings overheat for any reason FIRESTAT N What is a Firestat It s a temperature operated safety device that stops fan operation if the temperature gets high enough to indicate the possibility of a fire This keeps the appliance from fanning the fire Do the units come with Firestats No the UL CSA tested and approved thermal overload in the motor provides sufficient protection If local codes require a separate firestat we recommend that licensed HVAC or electrical contractor be contacted for installation HUMIDISTAT 7 ae What is a Humidistat A humidistat is used to operate a fan based on a rise in relative humidity instead of a rise in temperature A humidistat can be used along with a thermostat to control both heat and moisture buildup Our model H1 uses a moisture sensitive membrane which lengthens or shortens as the relative humidity changes Do I need a Humidistat Not everyone needs a humidistat If you have noticed a problem with moisture condensing in your attic you should consider installing a humidistat and check for items that can contribute to attic humidity e What causes attic moisture i or Moisture in the form of a gas will travel with air from inside the house through ceiling materials and insulation into th
7. ork and electrical wiring must be done by qualified person s in accordance with all applicable codes and standards including fire rated construction 6 Sufficient air is needed for proper combustion and exhausting of gases through the flue chimney of fuel burning equipment to prevent back drafting Follow the heating equipment manufacturer s guideline and safety standards such as those published by the National Fire Protection Association NFPA and the American Society for Heating Refrigeration and Air Conditioning Engineers ASHRAE and the local code authorities 7 When cutting or drilling into walls or ceiling do not damage electrical wiring or other hidden utilities Ducted fans must always be vented to the outdoors Do not remove load bearing supports when installing this unit Make sure blade is on tight Ensure the set screw is securely tightened CAUTION WARNING For general ventilating use only Do not use to exhaust hazardous or Do not use an extension cord This fan must be connected to a 120 volt explosive materials and or vapors This fan has an unguarded 60 Hz grounded circuit only Do not use this fan with any solid state impeller Do not use in locations readily accessible to people or speed control To reduce the risk of fire or electrical shock use only with animals manufacturer approved controls Do not use on a roof pitch below 2 12 TOOLS REQUIRED Ehan Ladder e Drill e Ext
8. red Leave the flexible conduit somewhat slack Wire the thermostat as shown in Fig 8 e The PT 6 is adjustable from 60 F to 120 F The recommended temperature setting for best energy savings is 105 F Each Power Vent Must Have Its Own Thermostat Ground wire connected to ground screw Connection Made by Manufacturer ETEL 44 ok i a Neutral wire to white wire Quick RESPONSE GUIDE ON GABLE MOUNT POWER VENTS APPLICATIONS Can use a power vent to do something other than vent my attic Power vents are designed for general venting of attics They are NOT recommended for venting ovens or other cooking appliances paint fumes sawdust indoor pools jacuzzis saunas showers tubs or hazardous or explosive vapors or materials DUCTING want to install a power vent on a duct What size should use Power vents should NOT be installed on any type of duct EXHAUST VENTS What shou o with the exhaust vents that are on my roof after install the power vent We recommend that you remove or block other exhaust vents when you install a power vent This includes roof louvers and ridge vents This prevents them from acting as intake vents when the power vent is running If left open air may short cycle entering from roof louvers close to the power vent and back out again leaving large areas of the attic stagnant The exposed roof louvers are also more likely to pull in rain or s
9. t off during the heating season WIRING es What size wire should use The wire size to use depends on the size of the circuit breaker that controls the circuit on which the unit is installed A 15 amp breaker requires a minimum 14 gauge wire A 20 amp breaker requires a minimum 12 gauge wire What kind of wire should use Most codes permit the use of Romex type wire for most interior applications If there is any doubt customers should check with their local building dept Can I use an extension cord and just plug it in NO the unit should not be wired using an extension cord t should be wired according to national and local codes to a 120 V 60HZ grounded circuit Do I have to put in a new circuit for this power vent In most cases these units can be installed on an existing circuit without a problem Occasionally they may cause a circuit which is already at or close to maximum capacity to overload A breaker which trips occasionally even though all the appliances on the circuit seem to be working well may indicate the need for a new circuit
10. t turn off There is an opening in the back of the thermostat box which must be left uncovered so that air can get into the thermostat element If it is covered it causes longer run times WIRING WITH ATTIC FURNACE gee Your instructions say to install a special switch because have a furnace in my attic Why The concern is when the furnace and this applies only to gas or oil furnaces operates in heating mode It is not a problem if the power vent runs when the air conditioning is running Additionally heat pumps with electric heat elements and all electric furnaces are not affected by power vents There are occasions in Spring and Fall when temperatures are such that your attic may be warm enough for the power vent to come on even though the house is cool enough for the furnace to operate At these times it is possible for the power vent to disrupt the draft in the furnace flue causing combustion products to concentrate in the attic space and creating the potential for flue gases to get into the living area Using a power vent with a humidistat will also create periods when both the furnace and power vent will operate simultaneously The best course particularly when a humidistat is installed on the power vent is to have a licensed electrician or heating and air conditioning contractor install a lockout relay which will automatically cut the power vent when the furnace comes on The minimum precaution is a switch which will turn the power ven
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