Terminal Unit Control (TUC)

BIP4: Smoke Input

BIP3: Occupied/ Unoccupied Mode

and the electric heat to disable. This creates an immediate shutdown latching diagnostic, which requires a manual or Tracerâ reset to resume normal operation.

However, normal operation cannot resume until the water level recedes to an acceptable level. The switch will close after the water level recedes, and the active temperature control of the unit will resume by an automatic reset. Since both the condensate overflow detection and occupied/unoccupied status occupy BIP3 on the TUC board, only one option can be in use. The factory configures the 24V dry contact input as normally closed to indicate an alarm. However, it also can be normally open if using the correct switch.

The smoke input is a binary input on the TUC that is used with a smoke detector switch (installer supplied) to signal an alarm. Config- ure the input to either send an alarm to Tracer® or as a shutdown latching diagnostic. If the input is configured as a shutdown latching diagnostic, the TUC closes the control valve(s), shuts the fan off, closes the fresh air damper, and disables electric heat.

If the input is configured to send an alarm, Tracer will issue a system wide shutdown for the building. The unit will continue to run, and no diagnostic will register within the TUC. The factory configures the

24V dry contact input as normally closed. However, it can also be normally open if using the correct switch.

The unit can operate in the occupied/unoccupied mode when a binary signal is input from an external source such as a time clock or Tracer® . Reference the “TUC Fan Mode Operation” section on page 65 for the sequence of operations. This option is only available if the condensate overflow input is not in use (if not using Tracer®), since both inputs occupy the same point on the TUC board. The factory configures the 24V dry contact input as normally closed. However, it can also be normally open if using the correct switch. A closed signal indicates occupied mode.

BIP1: External Interlock

The external interlock input allows the unit to be remotely stopped when a binary signal is input to the TUC from an external source or from Tracer®. Since both external interlock and condensate overflow input to the same point (if not using Tracer®) on the TUC board, only one input can be in use. The factory configures the 24V dry contact input as normally closed, but it can also be open if using the correct switch.

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Trane LO manual BIP4 Smoke Input BIP3 Occupied/ Unoccupied Mode, BIP1 External Interlock
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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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