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Emerson
VH, DE, VE, DH manual
Models:
VE
DH
VH
DE
1
8
80
80
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80 pages
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Troubleshooting
Error codes
Compressor Replacement
Maintenance
Connecting the Analog Sensors
Main Menu AG-Run Diagnostics
Main Menu AM-Setpoints/Setup
Initial START-UP Procedure
Function Default Range
Cold Start Delay
Page 8
Image 8
vi
Page 7
Page 9
Page 8
Image 8
Page 7
Page 9
Contents
Liebert Deluxe System/3
Page
Table of Contents
Main Menu AG-Run Diagnostics
Alarm Descriptions and Solutions
Temperature Control
System Testing
Figures
Page
System Description
Introduction
Dual Source Cooling Systems
Chilled Water Systems
Glycool Chilled Glycol Cooling Systems
Initial START-UP Procedure
Additional Considerations for Upflow Units
Display the Main Menu-AM Control
Advanced Microprocessor Controls Setup
Basics
Advanced microprocessor AM control menu
Main Menu AM-Status/Alarm Data
Active Alarms
Alarm History Log
Operating Status
Main Menu AM-Setpoints/Setup
Setup System Selection
Default control and alarm setpoints
Analog Sensors
Function Default Range
Setup Operation
Setup functions and factory default values
Show DIP Switches
DIP switch settings
Select Options
Calibrate Sensors
Setup Alarms
Select Control Type
Alarm default time delay
Alarm Default Delay seconds
Humidity Control Method
Standard Alarm Messages
Analog Setup
Run Diagnostics
Set Status Display
Calibrate Actuator
Show Inputs
Change Passwords
Main Menu AM-Date and Time
Test Outputs
Test Control Board
Control Circuit Board
Load Control Features
Main Menu AM-Status Display
DIP Switches
Communications
Nonvolatile Memory
Control Outputs
Monitor functions
View/Change Functions
Advanced Microprocessor with Graphics Control Setup
Advanced microprocessor with graphics control panel
Advanced microprocessor with graphics AG control menu
Main Menu AG-Status Display
Main Menu AG-View/Set Alarms
Display the Main Menu-AG Control
Default Time Delay
Alarm Seconds
Set Up Custom Alarms
Standard Custom Alarm Messages
Setup Water Detect Floor Plan
Installation-LT750 DIP Switch Settings
Main Menu AG-View/Set Control Setpoints
Main Menu AG-Setup System
Main Menu AG-Operating Status
Cold Start Delay
Auto Restart Delay
Default Settings and Ranges
IR Flush Overfill infrared humidifiers only
Calibrate Valve Actuator
Select Control Algorithm
Main Menu AG-Run Diagnostics
Select Humidity Sensing Mode
Show Inputs
Main Menu AG-Plot Graphs
Dehumidification with Normal or Delayed Reheat
Main Menu AG-Date and Time
Main Menu AG-Analog/Digital Inputs
Set Up Digital Inputs
Main Menu AG-View Run Hours Log
Read Digital Inputs
View 24 Hour Run Time History
Control Circuit Board
On/Off Status Time View Only Silence Alarm
Temperature Control
Response by Control TYPE-ADVANCED Microprocessor Controls
Glycool Cooling
Dual Cooling Source
Chilled Water Cooling
Heating Operation Electric Reheat
Humidity Control
Hot Water/Steam Heat
Dehumidification/Humidification Required, in Percent %
Control Types Proportional Control
Humidification Operation System Activation
Dual Cooling Source Dehumidification
Chilled Water Dehumidification
Suggested System Tuning Procedure
Intelligent Control
Load Control Features
Connecting the Analog Sensors
Analog Sensors
Changing factory-set sensor inputs
Additional connections available after unit delivery
Physical Connections
Setup
Water Detection Display
Communications
Calibration
View/Change Functions
Standard Alarms
Alarm Descriptions and Solutions
Change Filter
Compressor Overload
Custom Alarms Only With Advanced Controls
High Temperature
High Temperature and Low Temperature Simultaneously
Humidifier Problem Infrared Humidifiers
Loss of Power
Low Temperature
Loss of Air Flow
Low Humidity
Optional/Custom Alarms
System Testing
Component Operation and MAINTENANCE, Checks and Adjustments
Environmental Control Functions
Proportional Heating/Cooling/ Dehumidification
Fan Safety Switch
Electric Panel
Control Transformer and Fuses
Firestat
Filters
Blower Package
Fan Impellers and Bearings
Belts
Compressor Oil Level
Refrigeration System
Electronic Variable Speed Drive Inverter
Suction Pressure
Discharge Pressure
Suction Superheat
Thermostatic Expansion Valve Operation
Adjustment
Hot Gas Bypass Valve Operation
Outdoor fan/condenser configuration
Air Cooled Condenser
Adjustment Johnson Controls/Penn Johnson valves
Testing Function of Valve
Glycol Solution Maintenance
Water/Glycol Cooled Condensers Shell and Tube Condensers
Electrical Failure
Compressor Replacement
Mechanical Failure
Infrared Humidifier
Compressor Replacement Procedure
Humidifier
Autoflush Infrared Humidifier Cleaning System
Changing Humidifier Lamps
Autoflush Operation
Humidifier lamps
Steam Generating Humidifier
Steam generating humidifier
Controls
Replacing the Canister
Priority Name LED Indication Description
Faults-canister generator humidifier
Humidifier canister part numbers
Circuit Board Adjustments
Steam generating humidifier capacity
Capacity
Hz Models Lbs/hr kg/hr
Voltage AMP Set Pt
Electric Reheat
Unit Rated Rated Values Voltage Capacity
Troubleshooting
Blower troubleshooting
Chilled water troubleshooting
Symptom Possible Cause Check or Remedy
Compressor and refrigeration system troubleshooting
Compressor and refrigeration system troubleshooting
Dehumidification troubleshooting
Glycol pumps troubleshooting
Humidifier-steam generator troubleshooting
Adjustments on
Humidifier-infrared troubleshooting
Reheat troubleshooting
Maintenance Inspection CHECKLIST-MONTHLY
Maintenance Inspection CHECKLIST-SEMIANNUAL
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