THERMOSTAT OPERATION -- COMFORT IS AT YOUR FINGERTIPS

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 se- lector 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 tempera- ture 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 op- eration 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 provided with your particular thermostat for operation details.

Before you call

If your system fails to operate, check the following before calling for service:

DCheck to see that all electrical disconnect switches are ON.

DMake sure the room thermostat temperature selector is properly set.

DMake sure the room thermostat system switch is properly set.

DReplace any blown fuses, or reset circuit breakers.

DMake sure unit access panels are in place.

DMake sure air filter is clean.

DLocate unit model number and have it handy

before calling.

Please record the following information for your convenience.

Dealer Name:

Address:

Phone Number:

Unit Model Number: HPXA15 –

Installation Date:

Visit us at www.lennox.com, or contact us at 1-800-9-LENNOX.

*P504551M*

2002 Lennox Industries Inc., Dallas, TX

Litho U.S.A.

504,551M

02/2002

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Lennox International Inc HPXa15 owner manual Thermostat Operation -- Comfort is AT Your Fingertips, Before you call
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HPXa15 specifications

Lennox International Inc has long been synonymous with innovation in the HVAC (heating, ventilation, and air conditioning) industry. One of their standout products is the HPXa15 heat pump, which exemplifies the brand's commitment to energy efficiency and advanced technology.

The HPXa15 is designed with a focus on high performance and reliability. This unit is part of Lennox's extensive range of heat pumps that cater to diverse residential needs. One of the main features of the HPXa15 is its energy efficiency. With a SEER (Seasonal Energy Efficiency Ratio) rating of up to 15 and an HSPF (Heating Seasonal Performance Factor) rating of up to 8.2, this heat pump is built to reduce energy consumption while maintaining powerful heating and cooling capabilities. This not only helps homeowners save on utility bills but also contributes to a lower environmental footprint.

Technologically, the HPXa15 employs a variable-speed compressor, enabling it to adjust to changing temperature demands. This not only enhances comfort by maintaining more consistent indoor temperatures but also maximizes energy savings. The unit's quiet operation is another notable feature, thanks to its advanced sound-dampening technology. This makes it an ideal choice for residential settings where noise levels need to be minimized, particularly in quiet neighborhoods.

The HPXa15 also features advanced humidity control, crucial for enhancing overall comfort in the home. By effectively managing indoor humidity levels, it provides a more pleasant living environment, which is particularly important in humid regions. Additionally, the heat pump is equipped with a durable cabinet designed to withstand harsh weather conditions, ensuring longevity and dependable performance.

Easy installation and compatibility with a variety of home systems stand out as key characteristics of the HPXa15. This flexibility allows homeowners to easily integrate the heat pump into their existing HVAC systems without extensive modifications.

Overall, the Lennox HPXa15 is a fantastic choice for homeowners seeking an energy-efficient, reliable, and technologically advanced heating and cooling solution. Its combination of features and cutting-edge technology makes it a smart investment for those looking to improve their home's comfort while reducing energy costs.
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