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The HRV cabinet has prepunched holes for the drain (see below). Insert the drain spout through the hole in the drain pan. Do not forget the “O ring” which seals each spout to the pan REMEMBER TO HAND TIGHTEN ONLY the washer and lock nut which hold the drain spout in place. Construct a P-Trap using the plastic tee connector. Cut two lengths of hose and connect each piece to an end of the “T” fitting, then connect the other ends to the two drain spouts. Position the “T” fitting to point upward and connect the drain line. Tape or fasten base to avoid any kinks. Pour a cup of water into the drain pan of the HRV after the drain connection is complete. This creates a water seal which will prevent odors from being drawn up the hose and into the fresh air supply of the HRV. CAUTION DRAIN SPOUT ZIP TIE TO DRAIN TEE CONNECTOR DRAIN SPOUT PRE-PUNCHED HOLES (2) DRAIN PAN DRAIN PAN 1/2 " I.D. DRAIN HOSE HARD PIPE PLUMBING PRE-PUNCHED HOLES (2) DRAIN PAN DRAIN PAN DRAIN 1/2" HARD PIPE TEE JOINT DRAIN SPOUT SPOUT TO DRAIN Model RNC120D Drain Set-up for Vertical Installation Use “T” between drain pans 1/2” I.D. condensate line Note: Secondary drain pan may be required to protect from condensate leakage. Do not remove to create a “P Trap”. “P” trap cap from drain spout must be at least 6” (152 mm) below unit. Drain Set-up for Horizontal Installation Do not remove these drain plugs Drain trap and tubing MUST be below bottom of door with 1/4" per foot downwards slope away from unit. Use drain spout provided in door. “P” trap must be at least 6” (152 mm) below unit. 1/2” I.D. condensate line 15 Installation Methods The Three Methods of Installation The three methods of installation for the HRV system are the Simplified, Partially Dedicated and Fully Dedicated Installations. Refer to the installation illustrations in this manual. Simplified Installations The Simplified Installation draws stale air from the cold air return duct of the air handler/furnace and introduces an equal amount of fresh air farther downstream into the cold air return. Refer to "The Simplified Installation" in this manual. The air handler/furnace blower must be running when the unit is operating for this system to be effective. Refer to "Interlocking HRV Operation to an Airhandler/Furnace Blower". Partially Dedicated Installations The Partially Dedicated Installation draws stale air from specific points in the house and introduces an equal amount of fresh air into the cold air return. Refer to "The Partially Dedicated Installation" in this manual. Stale air ducts should be installed where the worst air quality problems occur (bathroom, kitchen, and laundry room). Each location with a stale air duct should have a timer which will initiate high speed ventilation. Refer to "Optional Timers" in this manual. The air handler/furnace blower should be running when the HRV is operating to evenly distribute the fresh air throughout the house. Refer to "Interlocking HRV Operation to an "Airhandler/Furnace Blower". Fully Dedicated Installations The Fully Dedicated Installation draws stale air from specific points in the house and introduces an equal amount of fresh air to specific locations of the house. This system is not connected to an air handler/furnace. Refer to "The Fully Dedicated Installation" in this manual. Stale air ducts should be installed where the worst air quality problems occur (bathroom, kitchen, and laundry room). Each location with a stale air duct should have a timer which will initiate high speed ventilation. Refer to "Optional Timers" in this manual. Fresh air ducts should be installed to all bedrooms and living areas, excluding bathrooms, kitchen and utility areas. Grilles should be located high on a wall or in ceiling locations. Grilles that diffuse the air comfortably such as the Round Diffuser are recommended. If the floor is the only option available, then special care should be taken in locating grilles. Areas such as under baseboard heaters will help to temper the air. Also, optional inline duct heaters are available for mounting in the supply duct work to add heat if required. Air Duct Design and Installation A well designed and installed ducting system will allow the HRV to operate at its maximum efficiency. Always try to keep duct runs as short and straight as possible. See Installation Diagrams for various installation options. The inner and outer liners of the flexible insulated duct must be clamped to the sleeve of the weatherhoods (as close to the outside as possible) and the appropriate port on the HRV. It is very important that the fresh air intake line be given special attention to make sure it is well sealed. A good bead of high quality caulking (preferably silicone sealant) will seal the inner flexible duct to both the HRV port and the weatherhood prior to clamping with a large zip tie. To minimize air flow restriction, the flexible insulated duct that connects the two outside weatherhoods to the HRV should be stretched tight...

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