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Balancing damper* EXHAUST AIR from various parts of home. (i.e. bathrooms, kitchens) Cool Air Return Return Air Outdoors 3’ min. recommended NOTES: 1. Furnace blower is required to operate when ventilation from HRV is require. The furnace should be set to run continuously. 2. A minimum separation of 40 inches (1 m) is required between the two direct connections. 3. The exhaust air connection should be upstream of the supply air connection to prevent exhausting any fresh air. 4. Weatherhood arrangement is for drawing purposes only. 6' (2 m) minimum separation required. 18" (460 mm) above grade minimum. 5. Due to the differences in pressure between the HRV and the epuipment it is being connected to, the HRV's airflow must be confirmed on site, using the balancing procedure found in this manual. 8 Electrical The HRV unit should be plugged into a standard designated (120VAC) electrical outlet with a ground. The outlet should be serviced by a separate 15 amp/120V circuit. An extension cord should not be used with this appliance. A qualified service technician should make any required electrical connections. Remote Control Connections Low voltage connections between the remote controls, the dehumidistat, or the fan timer should be made by a qualified service technician. Low voltage wires from the remote controls are connected to the HRV micro-processor board. In order to prevent electric shock when cleaning or servicing the HRV, it is extremely important to confirm the polarity of the power line that is switched by the safety (disconnect) switch. The hot line (black) is the proper line to be switched. To confirm the proper polarity, use a voltmeter or test lamp to ensure there is no power after the switch when the door is open. Check between that point and ground (on the cabinet). Always make sure that the HRV is properly grounded. WARNING 9 10 DEHUMIDISTAT VENTILATION CONTROL (D.V.C.) * remove jumper on circuit board when using this control ** requires 3 wires • Designed for a central location • Ventilation control turns HRV system ON and OFF • Dehumidistat increases ventilation when required • High speed override switch • Great for building code requirements • Low voltage • Connect one per HRV only • Connects to red, black and orange Part No. 99-116 REMOTE DEHUMIDISTAT *requires 2 wires • anywhere humidity is a concern • provides high speed ventilation when ..humidity level exceeds selected setting • Connects to red and black Part No. 99-130 White DEHUMIDISTAT 20 MINUTE TIMER *requires 3 wires • provides high speed for 20 minutes • maximum wire length 100’ • connect up to 4 • connects to red, black and green terminals Part No. 99-132 Optional Controls Optional Remote Control Devices Low Voltage Operation Self Test The ventilator will automatically initiate a self test sequence when power is applied. Fan motor is cycled and then damper motor is cycled. Duration: Approximately 1.5 mins. How much ventilation do I need? During seasons when your windows and doors are closed (winter and summer if air conditioned) the HRV should operate continuously when the dwelling is occupied, and either continuously or intermittently when not occupied. For most installations the HRV will normally be set to operate continuously on low speed. To suit various lifestyles, the HRV offers a selection of operating modes. Method of Operation Good -intermittent operation at all times Better-continuous operation during day or occupied conditions, intermittent at night or unoccupied Best -recommended continuous operation of both HRV and furnace/air handler blower Mode DIP Switch Settings Figure1-Factory DIP Switch Settings The factory setting of the DIP switches (located on the circuit board) provides continuous low speed ventilation. Optional Remote Controls will initiate high speed ventilation. Remote controls with an ON/OFF switch (refer to "Remote Control Devices" in this manual) will shut the entire system down when the remote control is in the OFF position. Changing the remote control from OFF to STANDBY can be achieved by Setting the DIP Switch as per Figure 2. Figure 1 ON HS REMOTE DFR2 DFR3 Increasing Low Speed to Medium Low Figure 2-DIP Switch Settings for Standby (When using a Remote Control Device that has an ON/OFF Switch) This DIP Switch Setting can be adjusted when using a system control that has an ON/OFF switch (refer to "Remote Control Devices" in this manual). "STANDBY" is achieved when the Remote Control Switch is in the "OFF" position. The Dehumidistat and Timers will initiate high speed ventilation regardless of the "ON/OFF" switch position when this DIP switch configuration is used. ON Figure 2 HS REMOTE DFR2 DFR3 ATTENTION Figure 2 may not meet building code conformance in certain geographical areas. Check with your local building authority. The ventilator automatically operates on its lowest speed when plugged in or switched on. This setting is factory supplied from an autotransformer with two selectable low speeds. ...

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