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Black Box Black Box Cold Row DX user manual Saturated Refrigerant Pressure, Installation, Page

Models: CRDX-W-FS-12KW Black Box Cold Row DX CRDX-W-FS-24KW CRDX-A-FS-24KW CRDX-A-FS-12KW CRDX-G-FS-12KW CRDX-G-FS-24KW

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2.10.3.2 Saturated Refrigerant Pressure

Chapter 2: Installation

2.10.3Refrigerant Characteristics 2.10.3.1 Pressure/Temperature Settings

The following table is provided to assist with the normal settings of the system for R410A refrigerant. Where applicable, minimum and maximum settings are given along with normal operating pressures.

Table 2-11. R410A refrigerant pressure/temperature settings.

		Normal	Min.	Max.

	Sub-cooling °F	10	5	20

	Superheat °F	15	10	20

	Design Condensing Temp. @ 95°F	125	105	140
	Ambient	125	105	140
	Ambient

	Suction Pressure (psig)	130	105	140

	Fan Cycling Control—Fan On (psig)	440	330	480

	Fan Speed Control (psig)	440	—	—

2.10.3.2 Saturated Refrigerant Pressure

The following refrigerant temperature/pressure table is provided for reference for R410A refrigerant.

Table 2-12. R410A refrigerant pressures.

Temperature (°F)	Pressure (psig)	Temperature (°F)	Pressure (psig)

20	78.4	75	218

22	81.9	80	236

24	85.5	85	255

26	89.2	90	274

28	93.1	95	295

30	97.0	100	318

32	101	105	341

34	105	110	365

36	109	115	391

38	114	120	418

40	118	125	446

42	123	130	477

44	128	135	508

46	133	140	541

48	137	—	—

50	143	—	—

55	155	—	—

60	170	—	—

65	185	—	—

70	201	—	—

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Black Box Black Box Cold Row DX, CRDX-W-FS-12KW, CRDX-A-FS-24KW Saturated Refrigerant Pressure, Installation, Page

Contents

CRDX-A-FS-24KW CRDX-G-FS-12KW CRDX-A-FS-12KW CRDX-W-FS-24KW Cold Row DX User ManualCRDX-G-FS-24KW CRDX-W-FS-12KW Customer Support InformationTrademarks Used in this Manual Trademarks Used in this ManualPage Page FCC and IC RFI StatementsNOM Statement Normas Oficiales Mexicanas Electrical Safety StatementInstrucciones de Seguridad PagePage Table of ContentsTable of Contents Water-Cooled Systems CRDX-W-FS-12KW, CRDX-W-FS-24KW Table of ContentsPage Page Table of ContentsPage Table of ContentsPage Table of Contents1. Introduction 1.1 General Chapter 1 Introduction1.2 Product Description PageFigure 1-1. User interface display Chapter 1 IntroductionPage 24-Month Precision A/C Upgraded Limited Warranty 12-Month Precision A/C Limited WarrantyChapter 1 Introduction PageCold Row Warranty - Compressor 1.3 Product WarrantyChapter 1 Introduction Page1.4 Safety 1.4.1 General 1.4.2 Safety SummaryChapter 1 Introduction PagePage 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 nearbyChapter 1 Introduction Page 1.5 General DesignChapter 1 Introduction 1.5.2 Circuit Breakers/Motor Start Protectors 1.5.1 Electrical Compartment1.5.3 Compressor 1.5.3.1 Electronic Thermal Expansion Valve1.6.1 Remote Mounted Supply Temperature/Humidity Sensor 1.5.7 Temperature/Humidity Sensors1.6 Optional Equipment 1.6.2 Water Detector2. Installation 2.1 Receiving the Equipment Chapter 2 Installation2.2 Moving the Equipment 2.3 Site PreparationConditioned Space 2.4 Mounting/PlacementChapter 2 Installation PagePage 2.5 Air DistributionChapter 2 Installation Figure 2-2. Typical air distribution Chapter 2 InstallationPage 2.6.1 Remote Water Detectors 2.6 Optional Equipment Field InstalledChapter 2 Installation PagePage 2.6.2 Remote Temperature/Humidity SensorChapter 2 Installation Chapter 2 Installation 2.6.3 Outdoor CondensersFigure 2-7. Typical W/G piping diagram PagePage Piping ConnectionsChapter 2 Installation Chapter 2 Installation Water-Water/Glycol Supply and Return Piping ConnectionsFigure 2-8. Top access piping PageFigure 2-9. Bottom access piping Chapter 2 InstallationPage SCHRADER VALVE MALE PIPE THREADS2.8.1 Refrigerant Piping 2.8 Split Air-Cooled SystemsChapter 2 Installation PagePage 2.8.1.1 DX Refrigerant Piping ConnectionsChapter 2 Installation 2.8.2 Remote Air-Cooled Condensers 2.8.1.2 Refrigerant Pipe SizingChapter 2 Installation Page2.8.3 Condensate Drain Line 2.9 Utility Connections 2.9.1 Main PowerChapter 2 Installation PageFigure 2-12. Sample nameplate Chapter 2 InstallationPage 2.9.1.2 Three-Phase Units 2.9.1.1 Single-Phase Units 208/2302.9.2.2 Remote Temperature/Humidity Sensor 2.9.2 Optional Equipment2.9.3.3 Remote Condenser CRDX-A-FS-12KW, CRDX-A-FS-24KW 2.9.3.2 Glycol-Cooled Systems CRDX-G-FS-12KW, CRDX-G-FS-24KWChapter 2 Installation Page2.10.1 Water-Water/Glycol Cooled Systems 2.10 System Charging Procedures2.10.2 Remote Air-Cooled Systems Chapter 2 InstallationPage 2.10.2.1 Estimating Refrigerant ChargeChapter 2 Installation Evacuate the System 2.10.2.2 Preparing System For ChargingChapter 2 Installation PageFine-Tuning the System Charge 2.10.2.3 Refrigerant Charging ProceduresInitial System Charge Chapter 2 InstallationPage 2.10.2.4 -30 F Ambient ApplicationsChapter 2 Installation Page 2.10.3.2 Saturated Refrigerant PressureChapter 2 Installation 2.11.2 Low-/High-Pressure Limit Switch 2.11 Settings and Adjustments 2.11.1 Water-Water/Glycol Circuit2.11.3 Thermal Expansion Valve 2.11.4 Hot Gas Bypass3. Startup/Commissioning 3.1 Initial Operation Chapter 3 Startup/Commissioning3.2 Step-by-Step Startup Instructions 3.3 Microprocessor Controller Programming4.1.1.2 Password Protection 4.1.1 Features 4.1.1.1 Field ConfigurableChapter 4 E2 Controller 4. E2 Controller 4.1 General4.1.2.1 Function Keys 4.1.2 User Interface Display PanelChapter 4 E2 Controller Page4.1.2.3 Alarms 4.1.2.2 Contrast Adjustment4.1.3 Controller I/O Module Controller I/O Module LayoutPage 4.1.4 BMS InterfaceChapter 4 E2 Controller 4.2.2 Menus 4.2 Navigating Controller Display Screens 4.2.1 Menu SelectionChapter 4 E2 Controller Page4.2.4 Cursor Position in Screens 4.2.3 Display VariablesChapter 4 E2 Controller Page4.2.6.1 Password-Protected Screen 4.2.6 Password Authorization Levels4.2.5 Modifiable Variables Chapter 4 E2 Controller4.2.6.3 Setting the Passwords 4.2.6.2 Wrong Password4.3 System Operation Chapter 4 E2 ControllerPage 4.3.1 Setpoint AdjustmentChapter 4 E2 Controller Figure 4-14. Flashing cursor Chapter 4 E2 ControllerPage 4.3.2.1 Summary Alarm 4.3.2 Alarms4.3.2.2 Customer Alarms 4.3.2.3 Custom Alarms4.4.1.1 On/Off Digital Control 4.4.1 Control SignalsChapter 4 E2 Controller Page4.4.1.2 Proportional/Integral P/I Control 4.4.2.1 Temperature/RH Control4.4.2 Control Methods 4.4.2.2 Dewpoint Control4.4.3.1 Compressor Operation 4.4.3 Operating ConfigurationsChapter 4 E2 Controller Page4.4.3.3 Dehumidifying 4.4.3.2 Water-W/G Operation4.4.4 Airflow/Fan Speed Control Chapter 4 E2 Controller4.4.4.1 Independent Fan Speed Control 4.4.4.3 Temperature Proportionate Speed Control4.4.4.2 Variance from Average Fan Speed Control 4.4.4.4 Manual Speed ControlPage “Control” allows modification of basic control parameters such as setpoints and clock. Level 1 password is needed to enter this menuChapter 4 E2 Controller 4.5.2.4 Temperature Sensors 4.5.2.2 Return Temperature Sensor4.5.2 Information Menu Loop 4.5.2.1 Operating Conditions4.5.2.6 Discharge Pressure 4.5.2.5 Remote Supply Temperature/Humidity Sensor4.5.2.7 Setpoint Values 4.5.2.8 Compressor Status4.5.2.11 Fan Status 4.5.2.10 EHGB Status4.5.2.12 Group Information Menu Screens 4.5.2.13 Software Version/Date4.5.3.1 Alarms 4.5.3 Alarm Log4.5.3.2 Non-Critical Alarms 4.5.3.3 Critical AlarmsTable 4-3. Alarm screen messages 4.5.3.4 Alarm Screen MessagesChapter 4 E2 Controller PagePage 4.5.4 Control Menu LoopChapter 4 E2 Controller Page 4.5.4.1 Setpoint ScreensChapter 4 E2 Controller Page 4.5.4.2 Alarm Setpoint ScreensChapter 4 E2 Controller Page Figure 4-33. Low humidity alarmChapter 4 E2 Controller 4.5.5 Service Menu Loop Dirty Filter Timer4.5.4.3 Clock Screen Chapter 4 E2 ControllerFigure 4-40. Service menu loop selections 4.5.5.1 HumidityChapter 4 E2 Controller PagePage 4.5.5.2 AlarmsChapter 4 E2 Controller Page 4.5.5.3 SensorsChapter 4 E2 Controller Blower Setup Temp Zone Setup4.5.5.4 Blower Chapter 4 E2 ControllerControl, Startup 4.5.5.5 Options Menu LoopChapter 4 E2 Controller PageT/H Offset Scaling Unit TimersChapter 4 E2 Controller PageCustomer Alarm Input Optional Custom SetupChapter 4 E2 Controller PagePage Custom Alarm Setup OptionalChapter 4 E2 Controller Table 4-6. Alarms 17 to Table 4-5. Alarms 9 toChapter 4 E2 Controller PageTable 4-8. Alarms 33 to 40 Sensor failure alarms Table 4-7. Alarms 25 to 32 Sensor failure alarmsChapter 4 E2 Controller PagePage Workgroup ScreensChapter 4 E2 Controller 4.5.5.7 Run Hours 4.5.5.6 Digital InChapter 4 E2 Controller Page4.5.5.8 BMS Communications 4.5.5.9 Save ConfigurationChapter 4 E2 Controller PagePage 4.5.5.10 Factory MenuChapter 4 E2 Controller 4.6 Communication with the Controller 4.6.1 Workgroup SetupChapter 4 E2 Controller Page4.6.2 Configuring a Workgroup 4.6.1.4 Out of Service4.6.1.1 Standby 4.6.1.2 Capacity AssistPage 4.6.2.1 Configure the Terminal AddressChapter 4 E2 Controller 4.6.2.3 Assign the Terminal to the Controller 4.6.2.2 Configure the Controller I/O Board pLAN AddressChapter 4 E2 Controller Page4.6.2.5 Displaying the Network Status and Firmware Version 4.6.2.4 Fault MessagesChapter 4 E2 Controller PagePage 4.6.2.6 Configure WorkgroupsChapter 4 E2 Controller Table 4-12. FactoryGroupsGroups Config Screen 1 parameters Figure 4-76. FactoryGroupsGroups Config Screen 1. See TableChapter 4 E2 Controller PageTable 4-13. FactoryGroupGroup Rotation Screen 2 parameters Chapter 4 E2 ControllerPage Table 4-15. FactoryGroupCapacity Assist Screen 4 parameters Chapter 4 E2 ControllerPage Table 4-18. Group alarms 9 to Table 4-17. Group alarms 1 toChapter 4 E2 Controller PageTable 4-20. Group alarms 25 to Table 4-19. Group alarms 17 toChapter 4 E2 Controller PagePage Table 4-21. Group alarms 33 toChapter 4 E2 Controller Group Setup 4.6.2.7 ServiceOptionsGroup Menu ScreensChapter 4 E2 Controller PageCapacity Assist #2 Capacity AssistGroup Sensors Chapter 4 E2 Controller4.6.2.8 Group Information Menu Screens Group AveragingChapter 4 E2 Controller PageGroup Sensor Values Group AlarmsLead Controller Group Sensors Group Sensor StatusPage 4.7 BMS CommunicationsChapter 4 E2 Controller 4.7.2 BMS Communication 4.7.1 Direct BMS ControlChapter 4 E2 Controller PageTable 4-26. I/O control module signal LEDs 4.8 Troubleshooting the Control I/O Module Signal LEDsChapter 4 E2 Controller PageChapter 4 E2 Controller 4.9 BMS Parameters, VersionPage Table 4-27. BMS parametersPage Chapter 4 E2 ControllerType of unit valid numbers 0 to 6 See Chapter 4 E2 ControllerPage Chapter 4 E2 Controller Variable/Value DescriptionsPage Table 4-30. Variable/Value DescriptionsTable 4-32. Alarm-Packed Bit Variables 4.9.4 Alarm Packed Bit VariablesChapter 4 E2 Controller PageChapter 4 E2 Controller 4.9.5 Sensor Failure Packed Bit VariablesPage Table 4-33. Sensor Failure Packed Bit VariablesChapter 4 E2 Controller 4.9.6 Digital Input Packed Bit VariablesPage Table 4-34. Digital Input Packed Bit VariablesChapter 4 E2 Controller 4.9.7 Digital Output Packed Bit VariablesPage Table 4-35. Digital Output Packed Bit Variables4.9.8 Unsigned Values for HTTP, SNMP/Modbus Holding Registers/Analog Values for BACnet Chapter 4 E2 ControllerPage 5. Maintenance 5.1 Periodic General Maintenance Chapter 5 Maintenance5.1.1.1 Cleanable Filters 5.1.1 FiltersPage Chapter 5 MaintenanceF Fgure 5-1. Cleanable filters 5.1.2 EC Fans 5.1.1.2 Cartridge Filters5.1.3 Coil 5.1.4 Drain Pans5.1.6 A/C System 5.2 TroubleshootingChapter 5 Maintenance PagePage Chapter 5 MaintenanceSymptom Control is erratic Page Chapter 5 Maintenance5.3.1 Water-Water/Glycol System 5.3 Field ServiceLeak Detection/Repair 5.3.2 DX System5.3.3 Refrigeration System Repairs 5.3.3.1 Compressor Failure 5.3.2.3 Refrigerant PipingChapter 5 Maintenance Page5.3.3.3 Burn-Out/Acidic Cleanup Procedure 5.3.3.2 Standard Cleanout Procedure5.3.4 Component Replacement 5.3.4.1 Fan ReplacementPage 5.3.4.2 Condensate Pump ReplacementChapter 5 Maintenance 6. Troubleshooting Chapter 6 Troubleshooting6.2 Obtaining Warranty Parts 6.3 Obtaining Spare/Replacement PartsQuotes are given for specified listed parts for a specific unit Chapter 6 TroubleshootingPage Appendix A Forms A.1 Checklist for Completed Installation of Cold Row DXAppendix A. Forms PageDate Appendix A FormsPage Page Appendix B Glossary Definition of Terms and AcronymsAppendix B. Glossary Definition of Terms and Acronyms VDC Volt, direct current WG Water Glycol Appendix B Glossary Definition of Terms and AcronymsPage Page Page Page About Black Box Black Box Tech Support FREE! Live. 24/7Tech support the way it should be