Liebert
8 Tons, 50 & 60Hz
user manual
Troubleshooting
Troubleshooting
Install
Alarms
Password
Alarm default time delays
Restart Time Delay
Dimension
Maintenance
Humidifier Problem Alarm
Run Diagnostics
Page 70
Troubleshooting
62
Page 69
Page 71
Image 70
Page 69
Page 71
Contents
Liebert Mini-Mate2
Page
Table of Contents
Microprocessor Control
System Performance Microprocessor Controls
Alarms
System OPERATION, TESTING, and Maintenance
Figures
Table iii Heat rejection matchup 60 Hz
Table iv Heat rejection matchup 50 Hz
Page
Standard Product Features
Optional Equipment
Ancillary Ship Loose Accessories
Room Preparation
Installation Considerations
Input Voltage Entering Fluid Temperature Min
Application limits, evaporator and chilled-water units
Location Considerations
Drycooler Evaporator
Unit weights
System Weights
Equipment Inspection upon receipt
Nylock
Installing the Evaporator or Chilled-Water Units
Locking nut Hex nut
Close Coupled Installations
Nut Clamps are for shipping purposes only
Evaporator external static pressure 60 at 3750 CFM 6371 CMH
Evaporator Air Distribution Filter Box
Connections for Ducted Systems
Hp Motor std Hp Motor opt Turns External Open
Drain installation
Piping Connections and Coolant Requirements Drain Line
Condensate Pump
Humidifier Water Supply Line
General arrangement diagram chilled-water systems
Chilled-Water Piping-Chilled-water Systems Only
Recommended refrigerant line sizes
Refrigerant R-22 Piping
Equivalent Suction Feet Circuit Liquid Line
Ton unit refrigerant charge
Total refrigerant = Units and Lines
Quick Connect Fittings
Line charges field piping
Optional Filter BOX
Power Connections
Electrical Connections, Evaporator or Chilled-Water Unit
Evaporator unit electrical connections
Front of Unit
General Considerations
Ducting
Considerations for Specific Applications
Electrical Connections Condensing Unit
Piping Connections
Control Connections
DPN000248Rev1
Heat rejection connection. Field
Outdoor Air-Cooled Condensing Unit Installation
Electrical Connections
Low voltage
Electric service connection
High voltage
Earth ground connection
Footprint Dimensions
152
11-1/2
292
Condensing Unit Fluid Requirements
Water/Glycol Piping Considerations
Regulating Valve
Indoor water/glycol condensing unit dimensional data
Site Preparation and Installation
Two circuits provided. Single circuit shown
Optional Equipment Piping
Optional free cooling coil 3-way valve on water/glycol units
Optional free cooling coil 3-way valve on air-cooled units
Checklist for Completed Installation
Feature Overview
Wall box
Main Menu Menu
Default setpoints and allowable ranges
Active Alarms
Alarm History
Setpoints
Time
Setup Operation
Restart Time Delay
Date
Humidity Control Method
Show DIP Switch
10.2 C/F Degrees
Lead Compressor
Setup functions, default values and allowable ranges
Change Passwords
Alarm Enable
Calibrate Sensors
Custom Alarms
Alarm Time Delay
Common Alarm Enable
Alarm default time delays
LCD Display Contrast
Equipment Options Switches
Custom Text
Nonvolatile Memory
Test Outputs
Run Diagnostics
Test Inputs
Test Micro
TB3-3 Connection to Terminal #3 Wallbox
TB3-1 TB3-2 TB3-3 TB4-4 Wall Box DIP Switches
TB3-4 Connection to Terminal #4 Wallbox
TB3-2 Connection to Terminal #2 Wallbox
Cooling
Control Type Response Proportional Control
Reheat
Communications
Load Control Features
Dehumidification / Humidification Percent Required
Humidification Operation System Activation
High Head Pressure
Alarms Definitions and Troubleshooting
Custom Alarms
Air-Cooled Systems
High-Water Alarm
Temperature
Humidifier Problem Alarm
Loss of Power
Optional/Custom Alarms
Change Filter
System Testing
Maintenance and Component Operation
Discharge Pressure
Refrigeration System
Suction Pressure
Thermostatic Expansion Valve
Regulating Valves Water/Glycol Condensing Units
Glycol Solution Maintenance
Hot Gas Bypass Optional
Replacement Procedures
Steam Generating Humidifier Operation Procedures
Replacing the Humidifier Canister
Circuit Board Adjustments
Humidifier control board DIP switch settings
Amps
Maintenance Inspection Checklist
Troubleshooting
Display freezes
Symptom Possible Cause Check or Remedy Cooling cycle too
Short
Control pads
Troubleshooting
Troubleshooting
Troubleshooting
Page
Tin
Net
Iti
That
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