Split System Models

Figure 28 Water/glycol-cooled condensing unit (con't.)

Field-supplied unit disconnect switch when factory unit disconnect switch is not supplied

WATER/GLYCOL

Optional factory-installed

disconnect switch

 

Field-supplied 24V NEC Class1 wiring to fan/coil unit

Electric service; not by Liebert

Field-supplied 24V NEC Class1 wiring to drycooler (glycol-cooled units only)

Heat rejection connection.

Removable

Field-supplied 24V NEC

Access

Class 2 wiring. Wire

Panel

connections from evaporator

 

mod:

 

1.

24V ground

 

2.

24V supply

 

3.

High pressure alarm (optional)

4.

Hot gas bypass

 

connection (only on units with hot gas bypass)

Remote drycooler connection; field-supplied 24V NEC Class 1 wiring (glycol-cooled units only)

Line-voltage electric power supply conduit entrance

Connection terminal for field-supplied earth grounding wire

Low-voltage electric

power supply conduit entrance

Field-supplied 24V NEC Class 1 wiring between glycol condensing unit and drycooler

DPN000228_Rev0

NOTES

1.Refer to specification sheet for full load amp. and wire size amp. ratings.

2.Control voltage wiring must be a minimum of 16 GA (1.6mm) for up to 75' (23m) or not to exceed 1 volt drop in control line.

55

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Image 61
Liebert ITR installation manual Water/Glycol

ITR specifications

The Liebert ITR is an advanced precision cooling unit designed to maintain optimal temperature and humidity levels in mission-critical environments. Engineered for high-performance applications, it is particularly suitable for data centers, telecommunications facilities, and other spaces that require precise climate control to ensure uninterrupted operation of sensitive equipment.

One of the main features of the Liebert ITR is its modular design. This allows for scalability and flexibility, enabling users to customize the system based on their specific cooling needs. The unit can be configured in various sizes and cooling capacities, making it suitable for both small server rooms and large data centers. This adaptability is crucial for organizations that anticipate growth and require an efficient cooling solution that can evolve with their infrastructure.

The Liebert ITR incorporates state-of-the-art technologies to enhance performance and energy efficiency. Among these technologies is the use of a variable speed compressor that adjusts its speed based on the cooling load. This capability not only improves energy efficiency but also significantly reduces operational costs by minimizing electricity consumption when cooling demands fluctuate.

Additionally, the unit features advanced control systems that provide intelligent monitoring and management of temperature and humidity levels. These systems can integrate seamlessly with building management systems (BMS) and can be operated remotely, providing users with real-time insights into the performance of the cooling system. Such connectivity ensures quick identification and resolution of potential issues, thereby reducing downtime and maintaining optimal conditions for critical equipment.

The Liebert ITR utilizes eco-friendly refrigerants, contributing to reduced environmental impact while ensuring compliance with regulatory standards. The unit's design also emphasizes reliability, featuring robust construction and redundant components that enhance longevity and minimize the likelihood of failures.

Furthermore, the Liebert ITR is equipped with advanced filtration systems that maintain air quality by reducing particulate matter and contaminants, ensuring that the atmosphere within data centers is not only cool but also clean—critical for the longevity of sensitive electronic equipment.

Overall, the Liebert ITR is characterized by its innovative design, energy-efficient operation, and comprehensive control capabilities, making it an ideal choice for businesses looking to safeguard their critical infrastructure from overheating and humidity. As climate control becomes increasingly important in the digital age, the Liebert ITR stands out as a reliable solution for maintaining optimal environmental conditions.