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Resumen del manual
Keep shrubbery trimmed away from the unit and periodically check for debris which may have collected around the unit. Lennox Dealers Nobody knows more about the care and operation of your new Lennox equipment than your Lennox dealer. Your Lennox dealer is your best choice for routine maintenance or service. Lennox’ Quality Dealer Standards program ensures that when you call your Lennox dealer, you can count on prompt, courteous and professional service. Before the start of each heating and cooling season, the following service checks should be performed by a qualified service technician. As always, electrical power to the unit must be turned off prior to any unit maintenance. . The outdoor and indoor coils should be inspected and cleaned. The outdoor coil may be flushed with a water hose. NOTE – It may be necessary to flush the outdoor coil more frequently if it is exposed to substances which are corrosive or which block airflow across the coil (e.g., pet urine, cottonwood seeds, etc.) . The refrigerant lines should be visually inspected and the coils should be checked for leaks. . Wiring should be checked for loose connections. . Voltage must be checked at the indoor and outdoor units (units operating). . The amp-draw at the outdoor fan motor and indoor blower motor should be checked. Values should be compared with those given on unit nameplate. . Indoor unit filters should be cleaned or replaced. . The refrigerant charge should be checked and system pressures should be gauged. . The condensate drain line should be checked for free and unobstructed flow and it should be cleaned, if necessary. Heat Pump Operation Your new Lennox heat pump has several characteris tics that you should be aware of: Your heat pump satisfies heating demand by delivering large amounts of warm air into the living space. This is quite different from gas- or oil-fired furnaces or an electric furnace which deliver lower volumes of considerably hotter air to heat the space. Do not be alarmed if you notice frost on the outdoor coil in the winter months. Frost develops on the outdoor coil during the heating cycle when temperatures are below 45°F (7°C). An electronic control activates a defrost cycle lasting 5 to 15 minutes at preset intervals to clear the outdoor coil of the frost. During the defrost cycle, you may notice steam rising from the outdoor unit. This is a normal occurrence. The thermostat may engage auxiliary heat during the defrost cycle to satisfy a heating demand; however, the unit will return to normal operation at the conclusion of the defrost cycle. Your Lennox HPXA12 heat pump is equipped with a compressor crankcase heater which protects the compressor from refrigerant slugging during cold weather operation. If power to your unit has been interrupted for several hours or more, set the room thermostat selector to the “Emergency Heat” setting to obtain temporary heat without the risk of serious equipment damage. In this operating mode, all heating demand will be satisfied by auxiliary heat. Compressor operation is locked out during Emergency Heat operation. After a six-hour compressor crankcase heater warm-up period, the thermostat can be switched to the “Heat” setting and normal operation will resume. ! "# $ ! %$ "& ! ! "# $ ! %$ "& ! Though your thermostat may vary somewhat from the description below, its operation will be similar. Temperature Setting Levers Most heat pump thermostats have two temperature selector levers: one for heating and one for cooling. Set the levers or dials to the desired temperature setpoints for both heating and cooling. Avoid frequent temperature adjustment; turning the unit off and back on before pressures equalize puts stress on the unit compressor. Fan Switch In AUTO or INT (intermittent) mode, the blower operates only when the thermostat calls for heating or cooling. This mode is generally preferred when humidity control is a priority. The ON or CONT mode provides continuous indoor blower operation, regardless of whether the compressor or auxiliary heat are operating. This mode is required when constant air circulation or filtering is desired. System Switch Set the system switch for heating, cooling or auto operation. The auto mode allows the heat pump to automatically switch from heating mode to cooling mode to maintain predetermined comfort settings. Many heat pump thermostats are also equipped with an emergency heat mode which locks out heat pump operation and provides temporary heat supplied by the auxiliary heat. Indicating Light Most heat pump thermostats have an amber light which indicates when the heat pump is operating in the emergency heat mode. Temperature Indicator The temperature indicator displays the actual room temperature. Programmable Thermostats Your Lennox system may be controlled by a programmable thermostat. These thermostats provide the added feature of programmable time-of-day setpoints for both heating and cooling. Refer to the user’s information manual pro...