Wall-Mounted Relative Humidity Sensor (Fig. 30)

ÐThe wall-mounted relative humidity sensor is packaged and shipped inside the fan section. It is installed on interior walls to measure the relative humidity of the air within the occupied space.

The use of a junction box to accommodate the wiring is recommended for installation. The sensor may 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 those areas will produce inaccurate readings.

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.

Sensor should be vertically mounted approximately 5 ft up from the ¯oor, beside the space temperature sensor.

Install the sensor using 2 screws and 2 hollow wall an- chors (if required); do not overtighten screws. See Fig. 31. Sensor must be mounted with terminals ACIN and OUT1 located at the top of the sensor as shown in Fig. 32.

For distances up to 500 ft, use 4-conductor 20 AWG cable (2 twisted pairs, no shield) to connect the sensor to the PIC control box terminals and power supply. Refer to Field Wiring Connections section, page 52 for wiring instructions and details.

The PIC controller has a space relative humidity default set point of 40%.

Never attempt to clean or touch the sensing element with chemical solvents, as permanent damage to the sensor will occur.

Fig. 30 Ð Wall-Mounted Relative Humidity Sensor

(P/N HL39ZZ001)

Fig. 31 Ð Wall-Mounted Relative Humidity

Sensor Installation

Fig. 32 Ð Wall-Mounted Relative Humidity

Sensor Positioning

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Carrier 39L specifications Wall-Mounted Relative Humidity Sensor Fig

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.