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Fantech VHR 704 Installation Manual

Manual is about: Heat Recovery Ventilator

Summary of VHR 704

  • Page 1

    1 vhr 704 important - please read this manual before installing unit vhr 704 heat recovery ventilator vhr series 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 o...

  • Page 2: Table of Contents

    2 table of contents technical data vhr 704 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3 installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5 mounting the unit . . . . . ...

  • Page 3: Vhr 704

    3 vhr 704 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 i...

  • Page 4

    4 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 704 • total assembled weight: 26 lbs (12kg) • cabinet: 24 ga. Steel w/...

  • 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 vh 704 is designed to vent from a single source point only and to the bath- room that is closest to the unit or directly out ...

  • Page 8

    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 home (bathroom, kitchen, laundry) fresh air supplied to main living areas note* vhr 704 should be mounted with its d...

  • Page 9

    9 installation examples (cont'd) example diagram only-duct configuration may change depending on model partially dedicated system stale air drawn from key areas of home (bathroom) fresh air supplied to main living areas via the forced air system. Notes: 1.Furnace blower may be required to operate wh...

  • Page 10

    10 air flow 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 ...

  • Page 11: Caution

    11 maintenance the filters (2) need to be checked and cleaned every three months or when they appear dirty. Wash in warm sudsy water (mild detergent) or use a soft brush vacuum. The filters should be replaced when they can no longer be cleaned properly. Practical tips • to prevent electrical shock, ...

  • Page 12: Operation

    12 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 13: Optional Remote Controls

    13 13 15-min timer - the 15-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 15 minutes. Up to 5 electronic timers can be installed throughout the building at a distance...

  • Page 14: Troubleshooting

    14 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 15: Electrical Connections

    15 electrical connections - + c u s to m d e fr o s t m o d e j u m p e r s e le c ti o n 3 p o s it io n m o d e s e le c ti o n s w it c h d ia g n o s ti c l e d u 1 5 -m in u te t im e r (u p t o 5 t im e rs ) d e h u m id is ta t 2 w ir e s d e h u m id is ta t o n /o ff 4 w ir e s m e c h a n ...

  • 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 rg y alternate furnace interlock wiring thermostat terminals furnace 24-volt terminal block four wire tw...