Item #: 403165 Rev Date: 2017-09-26 Installation, Operation and Maintenance Manual SH, VH & SE Series Heat & Energy Recovery Ventilators SH 704 • VH 704 • SE 704 Your ventilation system should be installed in conformance with the appropriate provincial requirements or, in the absence of such requirements, with the current edition of the National Building Code, and / or ASHRAE’s “Good Engineering Practices”. United States 10048 Industrial Blvd., Lenexa, KS, 66215 Tel.: 800.747.1762 • Fax: 800.487.
Note Warning/ Important note Information Technical information Practical tip PLEASE READ THIS MANUAL BEFORE INSTALLING UNIT 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 pressure.
Table of content DETERMINING YOUR AIRFLOW REQUIREMENT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 INSTALLATION EXAMPLES Fully dedicated system . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 Partially dedicated system . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Determining your airflow requirement Room Count Method Room classification Number of rooms CFM (L/s) Master bedroom x 10 L/s (20 CFM) = if yes add 10 L/s (20 CFM) yes or no if no = 0 Basement 1 CFM = 0.47 L/s 1 L/s = 2.
Installation examples Example only – duct configuration may differ depending on the model. FULLY DEDICATED SYSTEM BEST FOR NEW CONSTRUCTION 1. Stale air is drawn from key areas of the home requiring local exhaust (bathroom, kitchen, laundry room). 2. Fresh air is distributed directly to habitable rooms in the house (bedrooms, living room) 3.
Installation examples (Cont'd) DIRECT CONNECTION of the FRESH air to living area to the RETURN PLENUM of the AIR HANDLER (Stale air drawn from key areas of home) PARTIALLY DEDICATED SYSTEM (BETTER) 1. Furnace blower must operate when ventilation from HRV is required. The furnace should be set to run continuously or interlocked with HRV 2. Stale air is drawn from key areas of the home (bathroom, kitchen, laundry room). 3. Fresh air is supplied to the return air plenum of the furnace. 4.
Installation examples (Cont'd) Suggested installation for: • When bathroom and kitchen already have local exhaust system • May be suitable for retrofitting DIRECT CONNECTION of both the HRV SUPPLY AIR STREAM and EXHAUST AIR STREAM to the FURNACE COLD AIR RETURN SIMPLIFIED INSTALLATION (GOOD) (RETURN/RETURN METHOD) - OPTION 1 Benefits: Least expensive installation type 1. Furnace blower must operate when ventilation from HRV is required.
Installation examples (Cont'd) Suggested installation for: • When bathroom and kitchen already have local exhaust system • May be suitable for retrofitting DIRECT CONNECTION of the HRV SUPPLY AIR STREAM to the SUPPLY AIR SIDE on the FURNACE & EXHAUST AIR STREAM to the FURNACE COLD AIR RETURN SIMPLIFIED INSTALLATION (GOOD) OPTION 2 1. Furnace blower must operate when ventilation from HRV is required. The furnace should be set to run continuously or interlocked with HRV. 2.
Exterior ducting installation Weatherhood location OUTSIDE CORNER • Decide where your intake and exhaust hoods will be located. INSIDE CORNER 36" (1m) min. Locating the Intake Weatherhood • Should be located upstream (if there are prevailing winds) from the exhaust outlet. • At a minimum of 2m (6’) away from dryer vents and furnace exhaust (medium or high efficiency furnaces), driveways, oil fill pipes, gas meters, or garbage containers.
Installing duct to/from inside To maximize airflow in the ductwork system, all ducts should be kept short and have as few bends or elbows as possible. Forty-five degree are preferred to 90º elbows. Use “Y” tees instead of 90º elbows whenever possible. All duct joints must be fastened with screws or duct sealant and wrapped with a quality tape to prevent leakage. Aluminum foil duct tape is recommended.
Installation Location The HRV/ERV 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, closet, above drop ceiling or attic (SE704) and garage may be used.
Airflow adjustment & balancing Commissioning the system after installation is recommended which include confirming the proper operation of the system and how it interacts with other components within the home. Airflow station grid method B 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.
Electrical connections SH704 & VH704
Electrical connections (Cont'd) SE 704N
Troubleshooting Problem Causes Solutions Air is too dry Insufficient water vapour generated Install humidifier Air is too humid Sudden increase in humidity by cooking or bathing Ventilate at the source of the problem using a HRV or additional fan Sudden change in temperature Dryer vent exhaust is inside home Wait until outside temperature stabilizes (winter). Heating will also improve situation. Store a majority of your wood outside.
Maintenance chart Limited Warranty Maintenance Required Recommended Frequency Date Maintenance Performed Check and Clean Filters Every 3 months or if dirty Check Heat/Energy Recovery Core Every 6 months Check Drain Pan and Lines Every 3 months • The motors found in all Fantech HRV/ ERVs require no lubrication, and are factory balanced to prevent vibration and promote silent operation. • The limited warranty covers normal use.
Parts list VH704 BOM # Description VH704 (40358) 1 Motor, R2E 133-BH94-18 404378 2 Electrostatic Filters Kit 8” x 8.3” 405116 3 Heat Recovery Cell 8.5” x 8.
Parts list SH704 BOM # Description SH704 (40356) 1 Motor, R2E 133-BH94-18 404378 2 Electrostatic Filters Kit 8” x 8.
Parts list SE704 BOM # Description SE704 (40357) 1 Motor, R2E 133-BH94-18 404378 2 Electrostatic Filters Kit 8” x 8.
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