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Appendix A: Remote Thermostat Unit Installation

Remote Thermostat Selection & Wiring Guidelines for Packaged Terminal Air Conditioners

Follow the instructions and recommendations of the thermostat manufacturer for installation and wiring. Do not use a conventional heat pump thermostat with emergency electric heat selection for our heat pump units. Our units make an automatic decision about turning on electric heat if the heating demand cannot be met by the heat pump due to low outdoor temperatures.

Manual Changeover Thermostat

For Heat Pump equipped units: A single stage, heat/cool thermostat with a terminal for a reversing valve operation is required. Terminal "B" should be continuously energized in the heat mode and terminal "G" should be energized whenever there is a call for heating or cooling. Typically, a heat/cool thermostat designed for use with electric heat systems will meet the above requirements.

NOTE: This unit is designed for use with a single stage thermostat only. Improper application of the thermostat may result in property damage, personal injury or death.

Honeywell Thermostat Terminal Designation:

TERMINAL LETTER

OPERATION

CONTACT MADE

Y

Cooling

During call for cooling.

W

Heating

During call for heating.

G

Fan

Continuous if the slider is in the "Fan" position, otherwise, intermittent.

C

Common Terminal

For thermostats requiring a common terminal

R

24 V to the thermostat

Directly from the transformer

B (Heat Pump units Only)

Reversing Valve

Made continuously during call for heating.

For Non-Heat Pump equipped units: A single stage cooling and heating thermostat is required. Terminal "G" should be energized whenever a call for heating or cooling is made. Typically a heat/cool thermostat designed for use with electric heat systems will meet this requirement.

Simplified Wiring Example

Unit Terminal Board

* A-Suffix models do not have a "C" terminal

Typical PTAC/PTHP unit

Used for PTHP only

Wall thermostat

Thermostat Terminals

NOTE: It is the installer's responsibility to ensure that all control wiring connections are made in accordance with the installation instructions. Improper connection of the thermostat control wiring and/or tampering with the unit's internal wiring can void the equipment warranty and may result in property damage, personal injury or death. Other manufacturer's PTACs and even older Friedrich models may have different control wire connections. Questions concerning proper connections to the unit should be directed to the factory.

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Friedrich PTAC Appendix a Remote Thermostat Unit Installation, Simplified Wiring Example, Manual Changeover Thermostat

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.