Site Preparation and Installation

Figure 14 Evaporator unit electrical connections

Earth Ground Connection terminal for field-supplied earth grounding wire

High-Volt Power Connections

Electric service connection terminals

Factory-installed disconnect switch

Remote Humidifier Contact Field-Supplied 24V Class 2 wiring to Terminals 11 & 12, located in field wire compartment

 

Optional Condensate Pump Auxilary Float

 

Switch Connection to Terminal TB1-8 and

 

TB1-9.

 

Heat Rejection Connection. Field

 

supplied 24V NEC class 2 wiring.

 

See Note 2.

 

For remote air cooled units from

Customer Remote Alarm Connection. Field-supplied 24V Class 2 wiring

Terminals TB2-1, 2, 3 & 4 in the

Fan/Coil module to Wires 1, 2, 3 & 4

to connection TB1-1, TB1-2 and TB1-3.

in the condensing module:

Remote Control Panel Connection to TB3-1,2,3,4 connected

1. 24V GND

with field-supplied thermostat wire (22ga, shielded/jacketed:

2. 24V Supply

available from Emerson or others). Unit Control Board

3. High Pressure Alarm (OPT)

terminals marked GND, +5V, T-, T+ must be connected to

4. Hot Gas Bypass Connection

corresponding terminals on Remote Control Wall Box

 

Site Monitoring Connection. Terminals TB4-1(+) TB4-2(-) are for connection

 

of a 2 wire, twisted pair, communication cable (available from Emerson

 

or others) to optional Liebert SiteScan

 

Remote Unit Shutdown. Replace existing jumper between Terminals TB1-4 and TB1-5

Common Alarm Connection.

with normally closed switch having a minimum 75 VA rating. Use field-supplied 24V

Field-supplied 24V Class 2 wiring to

Class 1 wire

common alarm connection TB1-6 and TB1-7.

Field-supplied unit disconnect switch

 

when factory unit disconnect switch

Electric service not by Emerson

is not supplied

Entrance for customer

NOTES:

1. Refer to specification sheet for

high-volt connections

full load amp. and wire size amp.

 

 

ratings.

 

2. Control voltage wiring must be a

 

minimum of 16 GA (1.3mm) for up

 

to 75' (23m) or not to exceed 1 volt

 

drop in control line

Electrical entrance for

 

optional condensate

Drycooler/Circulating pump

pump on back of unit

control circuit TB70-71. Optional

 

w/Econ-O-Cycle models. Use

 

field-supplied 24V Class 2 wire.

Entrance for customer low-voltage connections

Field-supplied, field-wired thermostat wire to remote wall box

Entrance for customer low voltage connections

Field-supplied 24V (NEC Class 2 wiring)

to condensing module (if applicable) DPN000221 Rev. 2

25

Liebert® Mini-Mate2™

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Emerson MINI-MATE2 user manual Evaporator unit electrical connections
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MINI-MATE2 specifications

The Emerson MINI-MATE2 is a cutting-edge temperature and pressure monitoring device specifically designed for the needs of the refrigeration and HVAC industries. Known for its reliability and user-friendly interface, this compact unit serves as a key tool for technicians and facility managers looking to optimize system performance while ensuring compliance with safety standards.

One of the main features of the MINI-MATE2 is its advanced digital display, which allows users to easily monitor and interpret temperature and pressure readings in real-time. Its highly responsive sensors ensure accurate data collection, vital for maintaining optimal operating conditions. Moreover, the device supports a wide range of refrigerants, making it versatile for different applications, from walk-in coolers to commercial refrigeration systems.

The MINI-MATE2 utilizes state-of-the-art technology to enhance efficiency and performance. Equipped with Bluetooth connectivity, it allows for wireless communication with mobile devices, enabling technicians to track readings and receive alerts remotely. This feature not only improves convenience but also helps in quick decision-making, ensuring timely interventions when anomalies are detected.

Another significant characteristic is its robust construction. Built to withstand harsh environments, the MINI-MATE2 features a durable casing that protects it from physical impacts and environmental factors. This resilience ensures longevity, making it a cost-effective investment for any facility.

In addition, the MINI-MATE2 is designed with user-friendliness in mind. Its intuitive interface means that even technicians with limited experience can easily navigate its functionalities. Quick setup and straightforward operation allow for rapid adoption and extensive use in a variety of settings.

Finally, the MINI-MATE2 also includes built-in data logging capabilities. Users can record historical data for analysis and reporting purposes, which is essential for performing trend analysis and identifying potential issues before they escalate. By providing a comprehensive overview of system performance, the MINI-MATE2 empowers users to make informed decisions that can lead to improved energy efficiency and reduced operational costs.

Overall, the Emerson MINI-MATE2 is an indispensable tool for modern refrigeration and HVAC applications, combining cutting-edge technology, user-friendly design, and essential features to support efficient system management.
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