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Resumen del manual
6' (2 m) minimum separation required. 18" (460 mm) above grade minimum. 5. Due to the differences in pressure between the HRV and the equipment it is being connected to, the HRV's airflow must be confirmed on site, using the balancing procedure found in this manual. Return Air Return Air 40 inches minimum (1m) separation 3' min. recommended DIRECT CONNECTION of the SUPPLY AIR STREAM to the FURNACE COLD AIR RETURN Combustion or Electric Forced Air Furnace Balancing damper* in both air streams. Outdoors *Unit is normally balanced on HIGH speed with furnace blower ON. EXHAUST AIR from various parts of home. i.e. bathrooms (if required), kitchens (if required). Cool Air Return NOTES: 1. Furnace blower may need to operate when ERV is on to provide good air distribution. 2. No separation requirements necessary between direct connection point and furnace. 3. Weatherhood arrangement is for drawing purposes only. 6' (2 m) minimum separation required. 18" (460 mm) above grade minimum. 4. Due to the differences in pressure between the HRV and the equipment it is being connected to, the HRV's airflow must be confirmed on site, using the balancing procedure found in this manual. Return Air 3' min. recommended Figure 8 Figure 9 Installation Diagrams (Examples only) 21 INSTALLATION MODEL 500, 700, AND 1200 ONLY Location for Mounting The ERV must be located in a conditioned space where the surrounding air temperature does not effect the ERV or its ducting. The unit must be mounted level horizontal. The warranty could be void if these conditions are not met. Typically the ERV is positioned close to an outside wall or the roof to simplify the connections and keep the length of insulated ducting required for the fresh air intake to a minimum. A minimum clearance of 36 inches (90 cm) in front of the ERV is recommended to service the enthalpic cores and the filters. The ERV may be mounted on an equipment platform providing there is sufficient space to open the doors for servicing. The Ductwork System A properly designed ducting system will allow the ERV to operate at its maximum efficiency. (Air flow will be restricted by undersized ducting, use of too many elbows, tees, bends, etc.). Always try to keep duct runs as short and straight as possible. NOTE: Fully insulated ducting with an integral vapour barrier must be used on all runs passing through unconditioned areas in order to avoid condensation problems and energy losses from the air steams. All joints must be airtight, sealed and impervious to moisture. See specification sheets for each unit for exact duct sizes and location. To minimize pressure drop and noise, galvanized metal ducts, properly sized, are recommended. Keep ducting as short as possible and use a minimum of elbows and tees. Connecting sections and shorter runs may be flexible ducting one size larger than the metal equivalent. Use flexible duct connectors at the ERV to avoid noise transmission. All duct joints must be secured with screws, rivets or duct sealant and sealed with aluminum duct tape to prevent leakage. 22 Outside Weatherhoods The weatherhoods must have built-in “bird” screen with 1/4 in (63.5 mm) minimum mesh to prevent birds and rodents from entering into the ductwork. Do not use smaller mesh as it will be very susceptible to plugging up. Gravity dampers at the vents must not be used as they will restrict air flow and often “seize up”. The preferred location of the outside weather- hoods is: • no less than 10 ft. (3 m) apart from each other • at least 18 in ( 46 cm) above or ground level • away from sources of contaminants, such as automobile exhaust fumes, gas meters, garbage cans, containers, etc. • not exposed to prevailing winds, whenever reasonable possible The outside perimeter of the weatherhood must be caulked to prevent leakage into the building. The design and size of the weatherhoods or louvres chosen by the installer must allow for adequate free area. Water and debris penetration of the system is minimized when the airflow does not exceed 1000 FPM (5.08 m/s) free area velocity. Ducting from the Weatherhoods Galvanized sheet metal ducting with sufficient cross section with an integral single piece vapour barrier should be used to connect the ERV to the weatherhoods. All ducting must meet UL Class 1 requirements. A minimum R value of insulation should be equal to 4 (RSI 0.75) A good bead of high quality caulking (preferably acoustical sealant) and taping with a high quality aluminum foil tape is recommended to seal the duct to both the ERV and the weatherhood. Warmside Ducting - General Ducting from the ERV to the different areas in the building should be galvanized metal whenever possible. To minimize airflow losses in the ductwork system, all ducts should be as short as possible and with as few bends or elbows as possible. 45° elbows are preferred to 90° elbows. Use “Wye” (Y) fittings instead of “Tees” (T) whenever possible. All duct joints mist be fastened with screws, rivets or duc...
Otros modelos de este manual:Aire - 200ERV (885.67 kb)