American Standard Split System Cooling or Heat Pump Air Handler

Installation

WARNING

Hazardous Voltage!

Disconnect all electric power, including remote disconnects before servicing. Follow proper lockout/ tagout procedures to ensure the power can not be inadvertently energized. Failure to disconnect power before servicing could result in death or serious injury.

Electrical Connections

1.All electrical lines, sizing, protection, and grounding must be in accordance with the National Electric Code and local codes.

2.If conduit is used, isolate whenever vibration transmission may cause a noise problem within the building structure.

3.Ensure all connections are tight and no wires exposed.

4.All accessories must be installed and wired according to the instructions packaged with that accessory.

For air handler power entry only, or for dual power entry (power entry for air handler and power entry for electric heats), the electrical connections are made in the fan control box located in the left side of the air handler and electric heater respectively. Wiring entrance is through holes provided in the end of the air handler cabinet, see Figure 8. Breaker or fuse size can be selected using the nameplates attached to the unit and electric heater. See pages 13 through 22 for typical interconnecting wiring diagrams.

Table 1.	Recommended t’stat wire size
Wire Size	Maximum Wire Length
(Gauge)	Physical distance between Unit & T’stat

22	30 Feet

20	50 Feet

18	75 Feet

16	125 Feet

14	200 Feet

Figure 8.

Checkout Procedure

Complete the following “installation checklist” once installation of field wiring connections is complete. All operational checks (unit running) must be made after the outdoor unit is installed and system interconnection is complete.

Installation Checklist

Complete this checklist once the unit is installed to verify that all recommended procedures have been accomplished before the system is started. Operational checks cannot be performed until the outdoor unit is installed and system interconnection is complete.

•Verify that the unit electrical power is disconnected.

•Inspect all field wiring connections. All connections should be clean and tight.

•Inspect unit ground connection(s). Ground must comply with all applicable codes.

•Inspect unit suspension arrangement (if used). Unit position must be secure. Remove any tools or debris found in or near the unit.

•Inspect duct outlets. Outlets must be open and unrestricted.

•Inspect unit drain lines. Pipe connections must be tight and drain line unrestricted.

•Inspect fan assembly to insure all moving parts move freely.

•If unit is horizontally mounted, make sure secondary drain pan has been installed.

•Inspect unit for proper filters, securely installed. All cabinet panels must be secure.

•Instruct owner/operator on proper system operating and maintenance procedure.

Figure 9.

14	TWE-SVX03C-EN

TWE060BE, TWE060AE, TWE050ADE, TWE200BDF, TWE120A***F specifications

The American Standard TWE series of air handlers, including models TWE180B***E, TWE075AD**E, TWE100BD**E, and TWE240B***F, represent a blend of robust engineering, energy efficiency, and advanced technology designed to meet a variety of climate control needs in residential and light commercial settings.

One of the standout features of these air handlers is their adaptability to both cooling and heating functions, particularly the heat pump configurations. This dual functionality makes them ideal for regions with fluctuating temperatures, providing comfortable indoor environments year-round. The TWE series can efficiently maintain desired temperatures, whether in cooling mode during hot summers or heating mode in colder months.

Energy efficiency is a hallmark of the TWE models. Many of these air handlers are equipped with high SEER (Seasonal Energy Efficiency Ratio) and HSPF (Heating Seasonal Performance Factor) ratings, ensuring that energy consumption is kept to a minimum. This not only contributes to lower utility bills but also aligns with contemporary environmental standards.

The TWE240B***F model exemplifies American Standard's commitment to quiet operation. Noise reduction features, such as insulated cabinets and optimized fan designs, ensure that the unit operates quietly, making it suitable for residential areas where noise can be a concern.

Durability and reliability are key characteristics of the TWE series. Constructed with high-quality materials, these air handlers are designed to withstand the rigors of varying weather conditions. Many units also come with extensive warranties, underscoring the confidence in their longevity and performance.

Installation flexibility is another advantage of the TWE series. These air handlers can be configured for horizontal or vertical applications, allowing for versatile installation options in different home layouts.

The TWE models are also compatible with advanced thermostats and zoning systems, enabling homeowners to optimize comfort and efficiency based on their specific needs. Smart technology integration further enhances control over indoor climates, ensuring that users can manage their environment conveniently.

In summary, the American Standard TWE series air handlers—TWE180B***E, TWE075AD**E, TWE100BD**E, and TWE240B***F—combine energy efficiency, versatility, quiet operation, and long-lasting durability. These features make them an excellent choice for those seeking reliable cooling and heating solutions in their homes or small commercial spaces.