Tracer® ZN.520

 

warm enough to heat when it is five degrees above the measured

 

space temperature.

 

When the controller invokes the entering water temperature sampling

 

function, the unit opens the main hydronic valve for no more than

 

three minutes before considering the measured entering water

 

temperature. An initial stabilization period is allowed to flush the coil.

 

This period is equal to 30 seconds plus ½ the valve stroke time. Once

 

this temperature stabilization period has expired, the controller

 

compares the entering water temperature against the effective space

 

temperature (either hardwired or communicated) to determine whether

 

the entering water can be used for the desired heating or cooling. If

 

the water temperature is not usable for the desired mode, the control-

 

ler continues to compare the entering water temperature against the

 

effective space temperature for a maximum of three minutes.

 

The controller automatically disables the entering water temperature

 

sampling and closes the main hydronic valve when the measured

 

entering water exceeds the high entering water temperature limit (110

 

F). When the entering water temperature is warmer than 110 F, the

 

controller assumes the entering water temperature is hot because it

 

is unlikely the coil would drift to a high temperature unless the actual

 

loop temperature was very high.

 

If the entering water temperature is unusable — too cool to heat or

 

too warm to cool — the controller closes the hydronic valve and waits

 

60 minutes before initializing another sampling. If the controller

 

determines the entering water temperature is valid for heating or

 

cooling, it resumes normal heating/cooling control and effectively

 

disables entering water temperature sampling until it is required.

Electric Heat Operation

The Tracer® ZN.520 controller supports 1- or 2-stage electric heat

 

operation for heating. To control the space temperature, electric heat

 

is cycled to control the discharge air temperature. The rate of cycling

 

is dependent upon the load in the space and the temperature of the

 

incoming fresh air from the economizer (if any).Two-pipe changeover

 

units with electric heat use the electric heat only when hot water is

 

not available.

Fresh Air Damper Options

70

Manual

Units with the manual fresh air damper option ship with the damper in the closed position, which is adjustable from zero to 100 percent in

25 percent increments. To adjust the position, first remove the air filter

UNT-IOM-6

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Trane LO manual Fresh Air Damper Options, Electric Heat Operation, Manual
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LO specifications

Trane LO is a cutting-edge solution in the HVAC sector, designed with advanced engineering and smart technologies to meet diverse climate control needs. Renowned for its reliability and efficiency, Trane LO offers a wide array of features that set it apart in the market.

One of the core characteristics of Trane LO is its energy efficiency. Equipped with variable speed compressors, the system can adjust its output according to the cooling or heating demand, ensuring optimal energy use. This feature not only reduces energy consumption but also lowers utility bills for users. Additionally, Trane LO units often come with a SEER (Seasonal Energy Efficiency Ratio) rating that ensures top performance during hotter months.

Incorporating state-of-the-art technology, Trane LO features Smart Technology integration. Through IoT (Internet of Things) capabilities, users can monitor and control their HVAC systems remotely via smartphones or smart home devices. This feature promotes convenience and ensures that energy use can be optimized from anywhere, giving users greater control over their indoor climate.

Another standout technology in Trane LO is its use of environmentally friendly refrigerants. The system is designed to utilize low-GWP (Global Warming Potential) refrigerants, making it compliant with modern environmental standards and contributing to a greener planet.

The Trane LO also emphasizes durability. Constructed with high-quality materials, including weather-resistant finishes, these units are built to withstand various environmental conditions, ensuring they maintain peak performance over the years.

Noise reduction is another critical aspect of the Trane LO line. With features such as sound blankets and vibration dampening technology, the units operate quietly, ensuring that the comfort of users is not compromised by disruptive noise levels.

Maintenance is simplified with the Trane LO, as several units are engineered for easy access to essential components, promoting hassle-free servicing. This is vital for prolonging the lifespan of the system and reducing maintenance costs.

In summary, Trane LO represents a fusion of energy efficiency, advanced technology, environmental responsibility, durability, and user-friendly features. Whether for residential or commercial applications, Trane LO systems stand as a reliable choice for effective climate control.
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