Customer Support Information
Cold Row DX User Manual
CRDX-A-FS-24KW CRDX-G-FS-12KW CRDX-A-FS-12KW CRDX-W-FS-24KW
CRDX-G-FS-24KW CRDX-W-FS-12KW
Trademarks Used in this Manual
Trademarks Used in this Manual
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FCC and IC RFI Statements
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Normas Oficiales Mexicanas Electrical Safety Statement
NOM Statement
Instrucciones de Seguridad
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Table of Contents
Table of Contents
Water-Cooled Systems CRDX-W-FS-12KW, CRDX-W-FS-24KW
Table of Contents
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Table of Contents
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Table of Contents
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Table of Contents
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Chapter 1 Introduction
1. Introduction 1.1 General
1.2 Product Description
Figure 1-1. User interface display
Chapter 1 Introduction
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12-Month Precision A/C Limited Warranty
24-Month Precision A/C Upgraded Limited Warranty
Chapter 1 Introduction
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1.3 Product Warranty
Cold Row Warranty - Compressor
Chapter 1 Introduction
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1.4.2 Safety Summary
1.4 Safety 1.4.1 General
Chapter 1 Introduction
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Never work on electrical equipment unless another person who is familiar with the operation and hazards of the equipment and is competent in administering first aid is nearby
Chapter 1 Introduction
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1.5 General Design
Chapter 1 Introduction
1.5.3.1 Electronic Thermal Expansion Valve
1.5.1 Electrical Compartment
1.5.2 Circuit Breakers/Motor Start Protectors
1.5.3 Compressor
1.6.2 Water Detector
1.5.7 Temperature/Humidity Sensors
1.6.1 Remote Mounted Supply Temperature/Humidity Sensor
1.6 Optional Equipment
2.3 Site Preparation
Chapter 2 Installation
2. Installation 2.1 Receiving the Equipment
2.2 Moving the Equipment
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2.4 Mounting/Placement
Conditioned Space
Chapter 2 Installation
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2.5 Air Distribution
Chapter 2 Installation
Figure 2-2. Typical air distribution
Chapter 2 Installation
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2.6 Optional Equipment Field Installed
2.6.1 Remote Water Detectors
Chapter 2 Installation
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2.6.2 Remote Temperature/Humidity Sensor
Chapter 2 Installation
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2.6.3 Outdoor Condensers
Chapter 2 Installation
Figure 2-7. Typical W/G piping diagram
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Piping Connections
Chapter 2 Installation
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Water-Water/Glycol Supply and Return Piping Connections
Chapter 2 Installation
Figure 2-8. Top access piping
SCHRADER VALVE MALE PIPE THREADS
Chapter 2 Installation
Figure 2-9. Bottom access piping
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2.8 Split Air-Cooled Systems
2.8.1 Refrigerant Piping
Chapter 2 Installation
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2.8.1.1 DX Refrigerant Piping Connections
Chapter 2 Installation
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2.8.1.2 Refrigerant Pipe Sizing
2.8.2 Remote Air-Cooled Condensers
Chapter 2 Installation
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2.9 Utility Connections 2.9.1 Main Power
2.8.3 Condensate Drain Line
Chapter 2 Installation
Figure 2-12. Sample nameplate
Chapter 2 Installation
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2.9.2 Optional Equipment
2.9.1.1 Single-Phase Units 208/230
2.9.1.2 Three-Phase Units
2.9.2.2 Remote Temperature/Humidity Sensor
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2.9.3.2 Glycol-Cooled Systems CRDX-G-FS-12KW, CRDX-G-FS-24KW
2.9.3.3 Remote Condenser CRDX-A-FS-12KW, CRDX-A-FS-24KW
Chapter 2 Installation
Chapter 2 Installation
2.10 System Charging Procedures
2.10.1 Water-Water/Glycol Cooled Systems
2.10.2 Remote Air-Cooled Systems
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2.10.2.1 Estimating Refrigerant Charge
Chapter 2 Installation
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2.10.2.2 Preparing System For Charging
Evacuate the System
Chapter 2 Installation
Chapter 2 Installation
2.10.2.3 Refrigerant Charging Procedures
Fine-Tuning the System Charge
Initial System Charge
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2.10.2.4 -30 F Ambient Applications
Chapter 2 Installation
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2.10.3.2 Saturated Refrigerant Pressure
Chapter 2 Installation
2.11.4 Hot Gas Bypass
2.11 Settings and Adjustments 2.11.1 Water-Water/Glycol Circuit
2.11.2 Low-/High-Pressure Limit Switch
2.11.3 Thermal Expansion Valve
3.3 Microprocessor Controller Programming
Chapter 3 Startup/Commissioning
3. Startup/Commissioning 3.1 Initial Operation
3.2 Step-by-Step Startup Instructions
4. E2 Controller 4.1 General
4.1.1 Features 4.1.1.1 Field Configurable
4.1.1.2 Password Protection
Chapter 4 E2 Controller
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4.1.2 User Interface Display Panel
4.1.2.1 Function Keys
Chapter 4 E2 Controller
Controller I/O Module Layout
4.1.2.2 Contrast Adjustment
4.1.2.3 Alarms
4.1.3 Controller I/O Module
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4.1.4 BMS Interface
Chapter 4 E2 Controller
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4.2 Navigating Controller Display Screens 4.2.1 Menu Selection
4.2.2 Menus
Chapter 4 E2 Controller
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4.2.3 Display Variables
4.2.4 Cursor Position in Screens
Chapter 4 E2 Controller
Chapter 4 E2 Controller
4.2.6 Password Authorization Levels
4.2.6.1 Password-Protected Screen
4.2.5 Modifiable Variables
Chapter 4 E2 Controller
4.2.6.2 Wrong Password
4.2.6.3 Setting the Passwords
4.3 System Operation
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4.3.1 Setpoint Adjustment
Chapter 4 E2 Controller
Figure 4-14. Flashing cursor
Chapter 4 E2 Controller
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4.3.2.3 Custom Alarms
4.3.2 Alarms
4.3.2.1 Summary Alarm
4.3.2.2 Customer Alarms
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4.4.1 Control Signals
4.4.1.1 On/Off Digital Control
Chapter 4 E2 Controller
4.4.2.2 Dewpoint Control
4.4.2.1 Temperature/RH Control
4.4.1.2 Proportional/Integral P/I Control
4.4.2 Control Methods
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4.4.3 Operating Configurations
4.4.3.1 Compressor Operation
Chapter 4 E2 Controller
Chapter 4 E2 Controller
4.4.3.2 Water-W/G Operation
4.4.3.3 Dehumidifying
4.4.4 Airflow/Fan Speed Control
4.4.4.4 Manual Speed Control
4.4.4.3 Temperature Proportionate Speed Control
4.4.4.1 Independent Fan Speed Control
4.4.4.2 Variance from Average Fan Speed Control
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“Control” allows modification of basic control parameters such as setpoints and clock. Level 1 password is needed to enter this menu
Chapter 4 E2 Controller
4.5.2.1 Operating Conditions
4.5.2.2 Return Temperature Sensor
4.5.2.4 Temperature Sensors
4.5.2 Information Menu Loop
4.5.2.8 Compressor Status
4.5.2.5 Remote Supply Temperature/Humidity Sensor
4.5.2.6 Discharge Pressure
4.5.2.7 Setpoint Values
4.5.2.13 Software Version/Date
4.5.2.10 EHGB Status
4.5.2.11 Fan Status
4.5.2.12 Group Information Menu Screens
4.5.3.3 Critical Alarms
4.5.3 Alarm Log
4.5.3.1 Alarms
4.5.3.2 Non-Critical Alarms
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4.5.3.4 Alarm Screen Messages
Table 4-3. Alarm screen messages
Chapter 4 E2 Controller
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4.5.4 Control Menu Loop
Chapter 4 E2 Controller
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4.5.4.1 Setpoint Screens
Chapter 4 E2 Controller
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4.5.4.2 Alarm Setpoint Screens
Chapter 4 E2 Controller
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Figure 4-33. Low humidity alarm
Chapter 4 E2 Controller
Chapter 4 E2 Controller
Dirty Filter Timer
4.5.5 Service Menu Loop
4.5.4.3 Clock Screen
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4.5.5.1 Humidity
Figure 4-40. Service menu loop selections
Chapter 4 E2 Controller
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4.5.5.2 Alarms
Chapter 4 E2 Controller
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4.5.5.3 Sensors
Chapter 4 E2 Controller
Chapter 4 E2 Controller
Temp Zone Setup
Blower Setup
4.5.5.4 Blower
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4.5.5.5 Options Menu Loop
Control, Startup
Chapter 4 E2 Controller
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Unit Timers
T/H Offset Scaling
Chapter 4 E2 Controller
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Custom Setup
Customer Alarm Input Optional
Chapter 4 E2 Controller
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Custom Alarm Setup Optional
Chapter 4 E2 Controller
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Table 4-5. Alarms 9 to
Table 4-6. Alarms 17 to
Chapter 4 E2 Controller
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Table 4-7. Alarms 25 to 32 Sensor failure alarms
Table 4-8. Alarms 33 to 40 Sensor failure alarms
Chapter 4 E2 Controller
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Workgroup Screens
Chapter 4 E2 Controller
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4.5.5.6 Digital In
4.5.5.7 Run Hours
Chapter 4 E2 Controller
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4.5.5.9 Save Configuration
4.5.5.8 BMS Communications
Chapter 4 E2 Controller
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4.5.5.10 Factory Menu
Chapter 4 E2 Controller
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4.6.1 Workgroup Setup
4.6 Communication with the Controller
Chapter 4 E2 Controller
4.6.1.2 Capacity Assist
4.6.1.4 Out of Service
4.6.2 Configuring a Workgroup
4.6.1.1 Standby
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4.6.2.1 Configure the Terminal Address
Chapter 4 E2 Controller
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4.6.2.2 Configure the Controller I/O Board pLAN Address
4.6.2.3 Assign the Terminal to the Controller
Chapter 4 E2 Controller
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4.6.2.4 Fault Messages
4.6.2.5 Displaying the Network Status and Firmware Version
Chapter 4 E2 Controller
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4.6.2.6 Configure Workgroups
Chapter 4 E2 Controller
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Figure 4-76. FactoryGroupsGroups Config Screen 1. See Table
Table 4-12. FactoryGroupsGroups Config Screen 1 parameters
Chapter 4 E2 Controller
Table 4-13. FactoryGroupGroup Rotation Screen 2 parameters
Chapter 4 E2 Controller
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Table 4-15. FactoryGroupCapacity Assist Screen 4 parameters
Chapter 4 E2 Controller
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Table 4-17. Group alarms 1 to
Table 4-18. Group alarms 9 to
Chapter 4 E2 Controller
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Table 4-19. Group alarms 17 to
Table 4-20. Group alarms 25 to
Chapter 4 E2 Controller
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Table 4-21. Group alarms 33 to
Chapter 4 E2 Controller
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4.6.2.7 ServiceOptionsGroup Menu Screens
Group Setup
Chapter 4 E2 Controller
Chapter 4 E2 Controller
Capacity Assist
Capacity Assist #2
Group Sensors
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Group Averaging
4.6.2.8 Group Information Menu Screens
Chapter 4 E2 Controller
Group Sensor Status
Group Alarms
Group Sensor Values
Lead Controller Group Sensors
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4.7 BMS Communications
Chapter 4 E2 Controller
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4.7.1 Direct BMS Control
4.7.2 BMS Communication
Chapter 4 E2 Controller
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4.8 Troubleshooting the Control I/O Module Signal LEDs
Table 4-26. I/O control module signal LEDs
Chapter 4 E2 Controller
Table 4-27. BMS parameters
4.9 BMS Parameters, Version
Chapter 4 E2 Controller
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Chapter 4 E2 Controller
Type of unit valid numbers 0 to 6 See
Chapter 4 E2 Controller
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Table 4-30. Variable/Value Descriptions
Variable/Value Descriptions
Chapter 4 E2 Controller
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4.9.4 Alarm Packed Bit Variables
Table 4-32. Alarm-Packed Bit Variables
Chapter 4 E2 Controller
Table 4-33. Sensor Failure Packed Bit Variables
4.9.5 Sensor Failure Packed Bit Variables
Chapter 4 E2 Controller
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Table 4-34. Digital Input Packed Bit Variables
4.9.6 Digital Input Packed Bit Variables
Chapter 4 E2 Controller
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Table 4-35. Digital Output Packed Bit Variables
4.9.7 Digital Output Packed Bit Variables
Chapter 4 E2 Controller
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4.9.8 Unsigned Values for HTTP, SNMP/Modbus Holding Registers/Analog Values for BACnet
Chapter 4 E2 Controller
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5.1.1 Filters
Chapter 5 Maintenance
5. Maintenance 5.1 Periodic General Maintenance
5.1.1.1 Cleanable Filters
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Chapter 5 Maintenance
F Fgure 5-1. Cleanable filters
5.1.4 Drain Pans
5.1.1.2 Cartridge Filters
5.1.2 EC Fans
5.1.3 Coil
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5.2 Troubleshooting
5.1.6 A/C System
Chapter 5 Maintenance
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Chapter 5 Maintenance
Symptom Control is erratic
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Chapter 5 Maintenance
5.3.2 DX System
5.3 Field Service
5.3.1 Water-Water/Glycol System
Leak Detection/Repair
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5.3.2.3 Refrigerant Piping
5.3.3 Refrigeration System Repairs 5.3.3.1 Compressor Failure
Chapter 5 Maintenance
5.3.4.1 Fan Replacement
5.3.3.2 Standard Cleanout Procedure
5.3.3.3 Burn-Out/Acidic Cleanup Procedure
5.3.4 Component Replacement
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5.3.4.2 Condensate Pump Replacement
Chapter 5 Maintenance
6.3 Obtaining Spare/Replacement Parts
Chapter 6 Troubleshooting
6. Troubleshooting
6.2 Obtaining Warranty Parts
Quotes are given for specified listed parts for a specific unit
Chapter 6 Troubleshooting
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A.1 Checklist for Completed Installation of Cold Row DX
Appendix A Forms
Appendix A. Forms
Date
Appendix A Forms
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Appendix B Glossary Definition of Terms and Acronyms
Appendix B. Glossary Definition of Terms and Acronyms
VDC Volt, direct current WG Water Glycol
Appendix B Glossary Definition of Terms and Acronyms
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