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Installation Manual
IMPORTANT - PLEASE READ THIS MANUAL
BEFORE INSTALLING UNIT
CAUTION -
Before installation, careful consideration must be given to how this system
will operate if connected to any other piece of mechanical equipment, i.e. a forced air furnace
or air handler, operating at a higher static. After installation, the compatibility of the two piec-
es of equipment should be confirmed by measuring the airflow of the Heat Recovery or Energy
Recovery Ventilators.
It is always important to assess how the operation of any HRV/ERV may interact with vented
combustion equipment (i.e. Gas Furnaces, Oil Furnaces, Wood Stoves, etc.).
NEVER -
install a ventilator in a situation where its normal operation, lack of operation or par-
tial failure may result in the backdrafting or improper functioning of vented combustion equipment!!!
Your ventilation system should be installed in conformance with the appropriate provincial or state requirements
or in the absence of such requirements with the current edition of the National Building Code, and / or
ASHRAE's " Good Engineering Practices".
INSTALLATION, OPERATION AND MAINTENANCE MANUAL
VHR704R
Heat Recovery Ventilator
1
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Table of Contents
Related Manuals for Fantech VHR704R
Summary of Contents for Fantech VHR704R
- Page 1 VHR704R Heat Recovery Ventilator Installation Manual IMPORTANT - PLEASE READ THIS MANUAL BEFORE INSTALLING UNIT CAUTION - Before installation, careful consideration must be given to how this system will operate if connected to any other piece of mechanical equipment, i.e. a forced air furnace or air handler, operating at a higher static.
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Page 2: Table Of Contents
Mounting the Unit..........5 • The motors found in all Fantech HRV’s require no lubrication, and are factory Location &... -
Page 3: Vhr 704R
8" (205 mm) depth. Cores are designed and incoming air stream. Fresh incoming air is tempered by the manufactured by Fantech to withstand extreme temperature heat that is transferred from the outgoing air to save on variations. - Page 4 Dimensions & Airflow - All units feature three foot plug-in power cord with 3-prong plug. Stale Air Stale Air To Outside From Inside 22.4" (569 mm) 10.2" Fresh Air Fresh Air 21.5" (546 mm) (259 mm) From Outside To Outside •...
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Page 5: Installation
INSTALLATION LOCATION The HRV must be located in a heated space where it will be possible to conveniently service the unit. Typically the HRV would be located in the mechanical room or an area close to the outside wall where the weatherhoods will be mounted. If a basement area is not convenient or does not exist, a utility room or laundry or closet may be used. - Page 6 INSTALLING DUCTS GOING TO / FROM OUTSIDE A well designed and installed ducting system will allow the HRV to operate at its maximum efficiency. Always try to keep PRACTICAL duct runs as short and straight as possible. See Installation Diagrams for installation examples. TIPS INSTALLING THE DUCTING •...
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Page 7: Supply Air Ducting
In homes without a forced air furnace, fresh air should be supplied to all habitable rooms including, bedrooms and living areas. It should be supplied from high wall or ceiling locations. Grilles that diffuse the air comfortably such as Fantech Contour Grilles are recommended.To avoid possible noise transfer through the ductwork system, a short length (approximately 12”, 300 mm) of nonmetallic flexible insulated duct should be connected between the HRV and the supply/exhaust... -
Page 8: Installation Examples
INSTALLATION EXAMPLES 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 DIRECT CONNECTION of the SUPPLY AIR STREAM to the FURNACE COLD AIR RETURN (Stale air drawn from key areas of home) Partially Dedicated System Stale air drawn from key areas of home (bathroom) -
Page 9: Airflow Balancing
AIRFLOW BALANCING Fantech’s superior design and use of EBM motors results in a steep fan curve that usually does not require balancing. Commissioning the system after installation is recommended which includes confirming the proper operation of the system and how it interacts with other components within the home. -
Page 10: Heat Recovery Core
MAINTENANCE CAUTION MAKE SURE UNIT IS UNPLUGGED BEFORE ATTEMPTING ANY MAINTENANCE WORK The following components should also be inspected regularly and well maintained. Filters need to be checked regularly PRACTICAL TIPS FILTERS • To prevent electrical shock, check that the unit is unplugged before The filters (2) need to be checked and doing any repairs or maintenance. -
Page 11: Operation
The entire line of SHR/VHR series Heat Recovery Ventilators comes equipped with Fantech's new electronic uni-control board which offers a wide variety of features making it the ultimate ventilation control system. Fantech engineers have used the latest technology to provide solid, trouble free operation under any conditions. -
Page 12: Optional Remote Controls
OPERATION (CONT'D) OPTIONAL REMOTE CONTROLS * All controls are low voltage. 18 to 24 PRACTICAL gauge wire is recommended. TIPS Dehumidistat I - The wall mount dehumidistat monitors the humidity level in 2 wire installation the area it is installed. When the humidity level rises above the desired set- point, the HRV will activate to high speed/override mode. -
Page 13: Troubleshooting
TROUBLESHOOTING Problem Causes Solutions Air is too dry Dehumidistat control is set too low Increase the desired level of humidity. Change ventilation mode from continuous mode to standby. HRV out of balance Balance HRV Reduce the desired level of humidity. Combine this step with use of con- Dehumidistat control is set too high Air is too humid tinuous exchange mode. -
Page 14: Electrical Connections
ELECTRICAL CONNECTIONS... - Page 15 ELECTRICAL CONNECTIONS...
- Page 16 WIRE Distributed by: United States Canada Fantech, reserves the right to modify, at any time and without notice, any or all of its products’ features, designs, components and specifica- 10048 Industrial Blvd. 50 Kanalflakt Way, tions to maintain their technological leadership position.