During the winter months, the incoming cold fresh air is warmed by utilizing the heat recovered from the stale air before it is exhausted to the outdoors. During the summer months, the cool outgoing stale air from the air conditioned dwelling is used to help cool the incoming fresh air. Your HRV features the digital electronic BASE MODULE that uses a microprocessor to control fan speed and unit operation. Both digital (3 wire) and standard (2 wire) remote devices can control the HRV when conne

The drain line must be located in an area that is not subject to freezing and should beoutletted into floor drain sink, standpipe or condensate pump. Make sure the drain line slopes down to provide proper condensate removal. Should no "fall" be available, a condensate pump may be used. NOTE: A P-Trap must be made to prevent odours from being drawn in through the drain line. THE DUCTWORK SYSTEM A well designed ducting system will allow the HRV to operate at its maximum efficiency. Air flow wi

16 Operation of the HRV These Recirculating Models of HRV's will provide fresh clean air without sacrificing the savings of your energy conserving home. When outdoor air is required for pool room dehumidification, the aluminum cores of the HRV provide effective and efficient heat recovery exchange. Whether operating as an HRV or in recirculation mode, the energy efficient PSC blower motors provide reliable and cost effective operation. Operation: Humidity control is provided by an adjustable deh

Due to numerous applications in which this equipment can be installed, it is difficult to predict servicing intervals. In certain situations where there is heavy smoke, servicing the equipment every one two months may be needed; whereas ventilating a meeting room for example for carbon dioxide may only need service every six months to a year. Motor Access to the motor is through the front service doors. Note heat exchanger core can be removed to provide more room. See CORE in this section. The m

During the winter months the incoming cold fresh air is warmed by utilizing the heat recovered from the stale air before it is exhausted to the outdoors. During summer months when the indoor space is air conditioned, the Heat Recovery Ventilator will help in cooling the incoming fresh air with the stale air that is being exhausted. For Technical and Application Information Call NUTECH Service Dept. 519-457-1904 TABLE OF CONTENTS Engineering Data................................................

Condensation or Ice Build Up in Insulated Duct to the Outside • incomplete vapour barrier around insulated duct • a hole or tear in outer duct covering • tape and seal all joints • tape any holes or tears made in the outer duct covering • ensure that the vapour barrier is completely sealed Water in the bottom of the HRV • drain pans plugged • improper connection of HRVs drain lines • HRV is not level • ensure O-Ring on drain nozzle sits properly • look for kinks in line • check water drain conne

W.C.) TOTAL CURRENT DRAW VAC5.5 HIGH 4.7 LOW 70% 60% 50% 143 (300) 190 (400) 235 (500) 282 (600) 329 (700) TEMPERATURE EFFECTIVENESS AIRFLOW IN L/s (CFM) EFFECTIVENESS 5.0 MED PERFORMANCE SPECIFICATIONS CORES Modular (2 section) patented aluminum heat recovery cores arranged for efficient cross-flow ventilation. MOTORS Two PSC, 3 speed single shafted, 120 VAC, 2.75 Amps each (5.5 total on high speed). HP - 1/10, 1625 RPM. Watts - total on high speed - 648. FILTERS Washable air filters in exhaust

When the outside air temperature drops below 23'F (-5°C), a defrost timer is activated which provides for an automatic defrost cycle every 17 minutes. During the automatic defrost cycle the fresh air supply is shut off for approximately 4.5 minutes while the exhaust fan continues to operate. This allows warm inside air to flow over the heat exchanger core melting any frost accumulation. After the defrost period, the fresh air supply fan automatically returns to the normal speed and fresh outside

We recommend aluminum foil tape. Stale Air Return System The stale air return system is used to draw air from the points in the building where the worst air quality problems occur. Balancing dampers and/or adjustable grilles are recommended on all return air lines which are used during installation to help balance the “draw” from different areas of the building. Alternately, the stale air may be drawn directly from the return air duct. When this system is used, the air handler’s blower must cons

foil duct tape • knife • zip ties • caulking gun • 1/2” I.D. drain hose • smoke pencil Balancing Tools • Pitot Tube Balancing Kit [Case, 8 ft. vinyl tubing, Pitot tube, magnehelic gauge (0 -0.25”), and mounting plate] or • Pitot Tube with instructions and Digital Manometer (with resolution of 0 -0.25” -must read to 1/100ths of an inch) Optional Accessories • 20 Minute Fan Timer • Wall Mounted Dehumidistat • Weather hood Kit • Round Diffuser 4” (100mm) 5” (125mm) 6” (150mm) 8” (200mm) • Kitchen G