Emergency Heat — Emergency heat is available for heat pump applications. To turn on emergency heat, press and hold the Fan button. While holding the Fan button, press the UP button for 2 seconds. An ‘‘EH’’ will be displayed. During emergency heat, the fan will operate and the second stage of heat will be energized (locking out the first stage compressor). To exit emergency heat, press and hold the Fan button. While holding the Fan button, press the UP button for 2 seconds. Dur- ing emergency heat, only OFF and HEAT modes are available.

Holiday Mode — When the thermostat is in Holiday mode, the thermostat will operate under Unoccupied set points. To configure and activate the Holiday mode, press the Holiday button. The ‘‘HOL’’ icon will be displayed along with the remaining days of Holiday mode operation. Press the UP or

DOWN ARROWS to select the number of days that the holi- day schedule will be in effect. A value of 0 disables Holiday mode. The duration can be set from 1 to 99 days. The thermo- stat will enter Holiday mode on midnight of the next day after the mode has been activated. Holiday mode will remain in effect until midnight of the last configured day.

If the Holiday mode is in effect, the number of days remain- ing will blink on and off and the ‘‘Unoccupied’’ icon will be displayed. The Override button will be active during Holiday mode. The Dry Contact Switch is ignored.

To turn off the Holiday mode before the remaining config- ured days have passed, press the Holiday button to enter the configuration mode. Press the DOWN ARROW to set the number of days to zero. Holiday mode will be disabled.

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Carrier 50QE900 owner manual
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50QE900 specifications

The Carrier 50QE900 is an advanced air conditioning unit designed to provide superior climate control for residential and light commercial buildings. This model is a part of Carrier’s renowned range of HVAC solutions, known for efficiency and reliability. With its innovative technology and user-friendly features, the 50QE900 ensures optimal comfort year-round.

One of the standout features of the Carrier 50QE900 is its high efficiency. This unit boasts an impressive SEER (Seasonal Energy Efficiency Ratio) rating, which signifies its energy-saving capabilities. The greater the SEER, the more efficient the unit is at cooling your space while keeping electricity costs low. This model utilizes environmentally friendly refrigerants, aligning with modern sustainability goals.

In terms of design, the Carrier 50QE900 is compact and sleek, making it suitable for various installations without compromising on aesthetics. The robust construction ensures durability, allowing it to withstand varying weather conditions while maintaining consistent performance.

The 50QE900 incorporates advanced technological features that enhance functionality and user experience. It is equipped with a smart thermostat that allows for easy temperature adjustments and scheduling through a mobile app. This connectivity fosters a responsive climate control experience, permitting users to monitor and tweak indoor conditions even when they are away from home.

Furthermore, the unit is also recognized for its quiet operation. With sound-dampening technology, the Carrier 50QE900 minimizes noise levels, creating a peaceful indoor environment. This quality is particularly beneficial for residential applications where noise sensitivity may be a concern.

Maintenance is also simplified with the Carrier 50QE900. The unit features accessible filters and components, making routine upkeep straightforward. Regular maintenance helps ensure that the unit operates efficiently over time, prolonging its lifespan and performance.

In summary, the Carrier 50QE900 combines efficiency, innovative technology, and user-friendly features into a reliable air conditioning solution. With its energy-saving performance, sleek design, and quiet operation, it stands out as a prime choice for those seeking effective climate control in a range of environments. As industries shift towards smarter and more efficient solutions, the Carrier 50QE900 remains a compelling option for modern comfort needs.
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