Fan Cycle Switch, Fresh Air Vent Control

920-087-02 (9-03)

E. Heating Control (heat pumps and emergency heat operation)

NOTE: Heat pump models only. Heat pump equipped models use backup electric resistance heating coils. At extremely low, outdoor ambient temperatures, the heat pump is automatically disabled and the unit operates solely on electric resistance heat.

This control is located behind the decorative front cover and is found on the right side panel of the chassis. Its function is to allow you to set the temperature range in which the heat pump operates. This control switches the unit heat operation between heat pump and electric resistance heat based on the outdoor ambient temperature. These change-over temperatures are based on the settings of the control. The factory setting is at the one o'clock position. If you wish to change the factory set point, insert a flat-bladed screwdriver into the slot and turn counterclockwise to increase the changeover set point, or clockwise to decrease it.

NOTE: The factory set point is recommended for optimum performance.

NOTE: Emergency heat operation only. In the event of a compressor malfunction in the heat pump mode, turn the screw to the extreme counterclockwise emergency heat position. The heater will then cycle using electric resistance heat only. Note that in the emergency heat position, the compressor is locked out, disabling both heat pump and cooling operations. CALL A SERVICE PERSON. DO NOT FORGET TO RETURN THE CONTROL TO ITS ORIGINAL POSITION AFTER REPAIRS ARE MADE OR THE COMPRESSOR WILL NOT COME ON IN COOLING MODE.

F. Fan Cycle Switch

The fan cycle switch is located behind the decorative front cover below the control panel. It is designed to operate the fan either continuously or intermittently with the compressor or heating elements. When the switch is in the CONTINUOUS position, the fan will run continuously at the selected speed when the unit is turned on. With the fan cycle switch in the CYCLE position, the fan will run only when the compressor or heating elements cycle on.

NOTE: It is recommended that this switch be set in the continuous position for maximum comfort and temperature control.

G. Fresh Air Vent Control

The vent control lever is located behind the front cover on the left side of the unit. The unit is shipped in the closed position with a locking screw in place. The screw must be removed to operate the lever. When the lever is back, (OPEN), outside air is mixed with indoor air. When the lever is forward, (CLOSED), no outside air is admitted into the room and room air is recycled through the unit.

NOTE: The vent should remain closed for peak operating efficiency.

PTAC specifications

Friedrich PTAC (Packaged Terminal Air Conditioner) units are a popular choice for heating and cooling in commercial and residential spaces, thanks to their efficient design and reliable performance. Friedrich, a company with a long-standing reputation in the HVAC industry, offers a range of PTAC units characterized by advanced features and technologies that set them apart from traditional cooling systems.

One of the main features of Friedrich PTAC units is their high energy efficiency. Many of their models are Energy Star certified, which means they meet the stringent energy efficiency guidelines set by the U.S. Environmental Protection Agency. This efficiency translates into lower energy costs for users and reduced environmental impact, making them an excellent choice for energy-conscious consumers.

Friedrich PTAC units are equipped with advanced technologies that enhance their functionality. For instance, many units come with a built-in Wi-Fi option, enabling remote control through mobile devices. This feature allows users to monitor and adjust temperature settings, schedules, and modes from anywhere, providing convenience and ensuring energy is not wasted when spaces are unoccupied.

The design of Friedrich PTAC units also emphasizes ease of installation and maintenance. These units are designed to fit into existing wall sleeves, making replacement straightforward without significant structural modifications. Furthermore, their ease of access for servicing ensures that maintenance tasks can be performed quickly, reducing downtime and improving longevity.

Another key characteristic of Friedrich PTAC units is their robust construction. Built to withstand varying conditions, these units feature durable materials that ensure long-term reliability. Many models incorporate advanced sound-dampening technology, creating a quieter operation that enhances comfort, especially in residential applications.

Friedrich’s commitment to innovation is evident in its product line, offering various options to meet different climate requirements and user preferences. The units can provide both heating and cooling, making them versatile for year-round use. Additionally, they are available in various BTU capacities, allowing customers to select the appropriate model for their specific space needs.

Overall, Friedrich PTAC units are recognized for their efficiency, technological advancements, ease of installation, and sturdy design, making them an excellent choice for both commercial and residential applications where reliable climate control is needed.