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Fantech VHR704R Installation Manual

Manual is about: Heat Recovery Ventilator

Summary of VHR704R

  • Page 1

    1 important - please read this manual before installing unit vhr704r heat recovery ventilator installation manual installation, operation and maintenance manual caution - before installation, careful consideration must be given to how this system will operate if connected to any other piece of mecha...

  • Page 2: Table Of Contents

    Room classification number of rooms cfm (l/s) cfm required master bedroom x 20 cfm (10 l/s) = basement yes or no = bedrooms x 10 cfm (5 l/s) = living room x 10 cfm (5 l/s) = others x 10 cfm (5 l/s) = kitchen x 10 cfm (5 l/s) = bathroom x 10 cfm (5 l/s) = laundry room x 10 cfm (5 l/s) = utility room ...

  • Page 3: Vhr 704R

    3 compact top port design hrv with easy-mount wall bracket. Brings a continuous supply of fresh air into a home while exhausting an equal amount of contaminated air. Hrvs use what is called a “sensible” heat recovery core. This special core transfers heat from the exhaust air stream to the incoming ...

  • Page 4

    4 mm 569 mm 546 mm 259 mm 407 mm 455 dimensions & airflow - all units feature three foot plug-in power cord with 3-prong plug. Submitted by: date: qty: model #: comments: project #: location: architect: engineer: contractor: specifications and ratings • model: vhr 704r • total assembled weight: 30 l...

  • Page 5

    5 • install the unit close to the outside wall on which the supply and exhaust hoods will be mounted. • have a nearby power supply 120 volts, 60hz. (power cord is 3 feet long) • mount the unit as level as possible in order to allow proper condensate drainage. • have access to a water drain for the c...

  • Page 6

    6 3 push the hood into the opening. Attach the hood to the outside wall with mounting screws. Repeat the installation procedure for both the supply and exhaust hood. 2 pull the insulated flexible duct through the opening until it is well extended and straight. Slide the duct’s inner vinyl sleeve ove...

  • Page 7

    7 exhaust air ducting the stale air exhaust system is used to draw air from the points in the house where the worst air quality problems occur. Due to its lower capacity, the vhr 704r is designed to vent from a single source point only and to the bath- room that is closest to the unit or directly ou...

  • Page 8

    8 direct connection of the supply air stream to the furnace cold air return (stale air drawn from key areas of home) 8 installation examples example diagram only-duct configuration may change depending on model fully dedicated system (suggested for new construction) stale air drawn from key areas of...

  • Page 9

    9 airflow balancing 1 for this flow measuring station, cut the duct and place the flow measuring station between each section of duct. Make sure that the flow measuring station’s air direction arrow points in the direction of the airflow. Secure the flow measuring station with duct tape. 2 before ta...

  • Page 10: Caution

    10 maintenance the filters (2) need to be checked and cleaned every three months or when they appear dirty. Wash in warm soapy water (mild detergent) or use a soft brush vacuum. The filters should be replaced when they can no longer be cleaned properly. Filters need to be checked regularly heat reco...

  • Page 11: Operation

    11 operation winter: humidity control is very important during the winter months. This is when problems will be most apparent since condensation on the windows will often occur. The colder the outside temperature, the greater the risk of condensation in the home. The average relative humidity should...

  • Page 12: Optional Remote Controls

    12 20-min timer - the 20-minute remote timer is typically installed in areas where contaminated such as moisture and odors, are produced. Simply push the button and the hrv will activate to high speed for 20 minutes. Up to 5 electronic timers can be installed throughout the building at a distance of...

  • Page 13: Troubleshooting

    13 troubleshooting solutions causes problem dehumidistat control is set too low dehumidistat control is set too high sudden change in temperature storing too much wood for heating dryer vent exhaust is inside home poor air circulating near windows well sealed basement door is closed improper adjustm...

  • Page 14: Electrical Connections

    14 electrical connections - + custom defrost mode jumper selec tio n 3 position mode selec tion switch diagnostic led u 15-minute timer (up to 5 timers) dehumidista t 2 w ire s dehumidistat on/ o ff 4 w ire s mechanical cr an k timer 2 w ire s and / or and / or (1 only) air qualit y sensor cur sw de...

  • Page 15: Electrical Connections

    15 electrical connections off j2 white blac k wht/yello w orange yellow wht/green green blue wht/blue + cur sw co m in - - + dehu m n.C. N. O. - + edf timer red furna ce interl ock co m pc sw3 co m no on j7 j5 j6 j4 j3 on off on on orange orange green st and by med brow n brow n gre y tr1 red yell o...

  • Page 16: Electrical Connections

    16 w r g c y w r g y standard furnace interlock wiring thermostat terminals furnace 24-volt terminal block four wire two wire heating only two wire cooling system hrv electronic board w r g c y w r g y alternate furnace interlock wiring thermostat terminals furnace 24-volt terminal block four wire t...