Liebert nteleCool 2 - User Manual

Questions and Answers

W
Willie SimmonsJul 31, 2025
Why is my Liebert nteleCool 2 not cooling?
- N
  Nathan TurnerJul 31, 2025
  If your Liebert Air Conditioner is not cooling, begin by checking the refrigerant charge with gauges to ensure it's at the correct level. Next, inspect the compressor contactor to see if it's pulling in. If there's no voltage at the contactor, consult the wiring diagram to identify the voltage loss and check the enthalpy sensor for the correct setting (full CCW or D). Also, check the thermostat for proper voltage output to the Y terminal during cooling.
D
Deborah GrayAug 8, 2025
What to do if my Liebert Air Conditioner unit cycles on high pressure switch?
- B
  Bruce FowlerAug 8, 2025
  If your Liebert Air Conditioner cycles on the high-pressure switch, it could be due to a loss or restriction of airflow. Check the condenser blower assembly for proper operation and inspect the coil and inlet grille for any dirt or restrictions. Also, inspect the fan cycling control; the switch should make at 240 PSIG ±10 (1655 kPa ±68.9). If supplied, check the settings on the adjustable switch.
A
anna64Aug 15, 2025
What to do if my Liebert nteleCool 2 Air Conditioner unit will not start?
- M
  Michael SingletonAug 16, 2025
  If your Liebert Air Conditioner unit isn't starting, there are several possible causes. First, ensure the unit is receiving power by checking the voltage to the input circuit breaker. If power is present, inspect the control voltage circuit breaker for any shorts and reset it if necessary. Lastly, verify the operation of the external thermostat, as it may be defective or causing the unit to shut off.
P
Philip BennettAug 22, 2025
How to fix a Liebert nteleCool 2 Air Conditioner when the heat does not operate?
- B
  brittany53Aug 22, 2025
  If the heat isn't working on your Liebert Air Conditioner, start by checking the thermostat for proper voltage output to the W terminal. If the thermostat is functioning correctly, inspect the fuseable link for any opens and replace it if necessary. Finally, check the contactor for any opens and replace if needed.

Summary

Liebert InteleCool2 System Introduction

General System Overview

Overview of the Liebert InteleCool2 Environmental Control System for telecommunications.

Standard Features Explained

Details on the scroll compressor, refrigeration system, coils, blower, filter, cabinet, and control interface.

Optional Features and Configurations

Refrigeration System Options

Details on low pressure switch, low pressure bypass timer, T-pack1, and T-pack2 options.

Ancillary Components and Accessories

Describes wall-mounted thermostats, grilles, dual unit control, and Tele2 control systems.

Installation Process

Preparation and Unit Mounting

Covers room prep, location, inspection, and step-by-step unit installation.

Ducting and Piping Connections

Guidelines for ducting, static pressure, and factory piping connections.

Electrical Connections Guide

Instructions for power and control wiring, including safety precautions.

Optional Dampers and Economizers

Adjusting outside air damper and installing/adjusting the economizer.

Installation Completion Checklist

Startup Procedure

Operation Modes

Compressorized Cooling Explained

Explanation of the vapor-compression refrigeration cycle.

Economizer Cooling Functionality

How the economizer uses outside air for cooling under favorable conditions.

Optional Heating Operation

How optional resistance heating operates.

Unit Control Systems Overview

Details on how the unit is controlled via various interfaces.

Standard Control Timers and Protection

Anti-short cycle timer, heater protection, lockout relay, and common alarm functions.

Maintenance Procedures

Filter Maintenance

Guidance on filter inspection, cleaning, and replacement.

Blower Package Inspection

Periodic checks of blower wheels, housings, and motor mountings.

Economizer and Heater Maintenance

Inspection of economizer components and servicing heaters.

Refrigeration System Checks

Monthly inspection of components for proper function and wear.

Discharge Pressure and Expansion Valve

Effects of discharge pressure and how to adjust the thermostatic expansion valve.

Air-Cooled Condenser Cleaning

Cleaning the condenser coil and checking for bent fins.

Compressor Health and Troubleshooting

Troubleshooting compressor issues and preventing failures.

Compressor Failure Diagnosis

Identifying mechanical and electrical compressor failures.

Compressor Replacement Procedure

Procedure for replacing a failed compressor, including safety warnings.

System Pressure Information

Table detailing suction, liquid, and high pressure values.

Technical Specifications

Dimensional Data and Clearances

Table and diagram showing unit dimensions and clearances.

60 Hz Standard Ambient Condenser Technical Data

Table of technical data for 60 Hz standard ambient condenser.

60 Hz Standard Ambient Condenser Data Continued

Continued technical data for 60 Hz standard ambient condenser.

50 Hz Standard Ambient Condenser Technical Data

Table of technical data for 50 Hz standard ambient condenser.

50 Hz Standard Ambient Condenser Data Continued

Continued technical data for 50 Hz standard ambient condenser.

60 Hz High Ambient Condenser Technical Data

Table of technical data for 60 Hz high ambient condenser.

60 Hz High Ambient Condenser Data Continued

Continued technical data for 60 Hz high ambient condenser.

50 Hz High Ambient Condenser Technical Data

Table of technical data for 50 Hz high ambient condenser.

50 Hz High Ambient Condenser Data Continued

Continued technical data for 50 Hz high ambient condenser.

Optional Heater Capacities

Tables showing optional heater capacities for 60 Hz and 50 Hz units.

Electrical Data

Electrical Data (60 Hz)

Tables detailing electrical data (amps) for 60 Hz units.

Electrical Data (50 Hz)

Tables detailing electrical data (amps) for 50 Hz units.

Troubleshooting Common Issues

Maintenance Inspection Checklist

Parts Lists

Refrigeration Parts (1.5-2 Ton)

List of refrigeration system parts for 1.5 and 2 ton models.

Refrigeration Parts (3 Ton)

List of refrigeration system parts for 3 ton models.

Refrigeration Parts (4 Ton)

List of refrigeration system parts for 4 ton models.

Refrigeration Parts (5 Ton)

List of refrigeration system parts for 5 ton models.

Electric Panel Parts (1.5-2 Ton)

List of electric panel parts for 1.5 and 2 ton models.

Electric Panel Parts (3 Ton)

List of electric panel parts for 3 ton models.

Electric Panel Parts (4 Ton)

List of electric panel parts for 4 ton models.

Electric Panel Parts (5 Ton)

List of electric panel parts for 5 ton models.

Motor, Heater, Economizer Parts (1.5-2 Ton)

List of motor, heater, and economizer parts for 1.5/2 ton units.

Motor, Heater, Economizer Parts (3 Ton)

List of motor, heater, and economizer parts for 3 ton units.

Motor, Heater, Economizer Parts (4 Ton)

List of motor, heater, and economizer parts for 4 ton units.

Motor, Heater, Economizer Parts (5 Ton)

List of motor, heater, and economizer parts for 5 ton units.

Liebert nteleCool 2 Specifications

General

Brand	Liebert
Model	nteleCool 2
Category	Air Conditioner
Language	English

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