FACTORY WIRING

FIELD WIRING

NOTE: Connections for 39NX with integral PIC shown. See wiring diagrams in Fig. 9 and 12 for terminal connections in 39L control box and all remote-mount control boxes.

Fig. 16 Ð Chilled Water Valve Wiring

Space Temperature Sensor (Fig. 18) Ð The space temperature sensor (SPT) is packaged and shipped inside the fan section. It is installed on a building interior wall to mea- sure room air temperature.

The wall plate accommodates both the NEMA (National Electrical Manufacturers' Association) standard and the European 1¤4 DIN (Deutsche Industrie Norm) standard. The use of a junction box to accommodate the wiring is recom- mended for installation. The sensor can be mounted directly on the wall, if acceptable by local codes.

DO NOT mount the sensor in drafty areas such as near heating or air conditioning ducts, open windows, fans, or over heat sources such as baseboard heaters or radiators. Sensors mounted in these areas produce inaccurate readings.

Fig. 17 Ð Duct Static Pressure Probe

Avoid corner locations. Allow at least 3 ft between the sensor and any corner. Air¯ow near corners tends to be re- duced, resulting in erratic sensor readings.

The sensor should be mounted approximately 5 ft up from the ¯oor, in the area representing the average temperature.

Install the sensor as follows:

1.Remove sensor cover. Using a small blade screwdriver, insert blade into sensor cover latch slot on bottom of slat. Gently push upward on the screwdriver to release the cover latch. Rotate the cover forward as the screwdriver is re- moved.

2.Snap off the wall plate from the base assembly.

3.Feed the wires from the electrical box through the sensor base assembly.

4.Using two 6-32 x 5¤8-in. ¯at screws, mount the sensor base assembly to the electrical box.

5.Dress the wires down and inside the perimeter of the sen- sor base.

6.Attach the wall plate by snapping it onto the sensor base assembly.

7.Replace the cover by inserting the top inside edge of the cover over the tab on top of the sensor base assembly and rotating the cover down. Snap cover on.

Refer to Field Wiring Connections section, page 52 for wiring instructions and details. See Table 3 for Thermistor Resistance vs. Temperature Values.

NOTE: Clean sensor with damp cloth only. Do not use solvents.

40

Page 39 Page 41
Page 40
Image 40
Carrier 39L specifications Chilled Water Valve Wiring, Duct Static Pressure Probe
Page 39 Page 41

39L specifications

The Carrier 39L is a cutting-edge air conditioning unit designed for both residential and commercial applications, providing exceptional cooling and heating performance. Equipped with advanced technologies, this system ensures optimal climate control while maintaining energy efficiency.

One of the standout features of the Carrier 39L is its inverter technology. This innovation allows the system to adjust its compressor speed based on the ambient temperature, which results in a significant reduction in energy consumption. By operating at varying capacities rather than a fixed output, the 39L can maintain a consistent temperature, enhancing comfort while lowering electricity bills.

The Carrier 39L also includes a high-efficiency air filtration system, designed to capture dust, allergens, and other airborne particles. This not only improves indoor air quality but also promotes a healthier living environment. The filtration system is complemented by anti-bacterial treatment, ensuring that the air circulated within your space is both clean and refreshing.

In terms of design, the Carrier 39L boasts a sleek and compact form factor, making it easy to integrate into various settings, from homes to offices. Its quiet operation is another notable feature, as it minimizes noise levels, allowing occupants to enjoy a serene atmosphere without disruptive sound.

Further enhancing convenience, the Carrier 39L comes equipped with smart connectivity options. Users can control the unit remotely via a smartphone app, making it easy to adjust settings, program schedules, and monitor energy usage from anywhere. This feature not only improves user experience but also supports energy-saving practices.

Durability is also a key characteristic of the Carrier 39L. Constructed with high-quality materials and coated with corrosion-resistant treatments, the unit is built to withstand various environmental conditions. This ensures long-lasting performance and reduces the need for frequent maintenance.

Overall, the Carrier 39L is a versatile, efficient, and user-friendly air conditioning solution. Its blend of advanced technologies, energy-saving capabilities, and robust design makes it an ideal choice for those seeking reliable climate control in their spaces. Whether for residential comfort or commercial necessity, the Carrier 39L stands out as a leader in modern air conditioning.
Top Page Image Contents