Specifications
E2 RX/BX/CX I&O Manual Table of Contents • xi
11.4.9 Clean/Wash Mode........................................................................................................................................ 11-14
11.4.10 Walk-In Freezer Control............................................................................................................................ 11-15
11.4.11 Fail-Safe Mode........................................................................................................................................... 11-15
11.4.11.1 Recoverable Sensor Failures............................................................................................................................ 11-15
11.4.12 Wiring......................................................................................................................................................... 11-16
11.4.13 Setting Up An Individual Case Controller................................................................................................. 11-16
11.4.14 Associating Case Controllers with Case Circuit Control Applications..................................................... 11-16
11.5 L
OGGING GROUPS ............................................................................................................................................... 11-16
11.5.1 Data Compression........................................................................................................................................ 11-17
11.5.1.1 Clipping.............................................................................................................................................................. 11-17
11.5.1.2 Incompressible Data Types................................................................................................................................ 11-17
11.5.2 Base Log Group ........................................................................................................................................... 11-17
11.5.3 Setting Up Logging ...................................................................................................................................... 11-17
11.5.4 Logging Group Status Screen ...................................................................................................................... 11-18
11.5.5 Log Reports.................................................................................................................................................. 11-18
11.5.5.1 Logging Group Report....................................................................................................................................... 11-19
11.5.5.2 Application Log Report ..................................................................................................................................... 11-19
11.5.5.3 System Log Report ............................................................................................................................................ 11-19
11.6 AIR HANDLING UNITS (AHU)............................................................................................................................. 11-20
11.6.1 Overview ...................................................................................................................................................... 11-20
11.6.2 Temperature Control.................................................................................................................................... 11-20
11.6.3 Alternate Setpoints....................................................................................................................................... 11-20
11.6.4 Fan Control.................................................................................................................................................. 11-20
11.6.4.1 Single-Speed Fans.............................................................................................................................................. 11-20
11.6.4.2 Two-Speed Fans................................................................................................................................................. 11-21
11.6.4.3 Variable-Speed Fans .......................................................................................................................................... 11-21
11.6.5 Economizer Control..................................................................................................................................... 11-21
11.6.5.1 Economization Enable ....................................................................................................................................... 11-21
11.6.5.2 Economization Lockout Features ...................................................................................................................... 11-22
11.6.6 Digital Economizer Control......................................................................................................................... 11-22
11.6.7 Analog Economizer Control......................................................................................................................... 11-22
11.6.8 Dehumidification Control ............................................................................................................................ 11-22
11.6.9 Curtailment .................................................................................................................................................. 11-22
11.6.10 Optimum Start/Stop (OSS) ......................................................................................................................... 11-22
11.6.11 Separate Setpoints...................................................................................................................................... 11-23
11.6.12 AHU Zone Control..................................................................................................................................... 11-23
11.6.13 Hardware Overview................................................................................................................................... 11-23
11.7 Z
ONE CONTROL ................................................................................................................................................... 11-24
11.7.1 Overview ...................................................................................................................................................... 11-24
11.7.2 How Zones Work.......................................................................................................................................... 11-25
11.7.3 Applications That May Be Connected To Zones.......................................................................................... 11-25
11.7.3.1 MultiFlex RTU Board........................................................................................................................................ 11-25
11.7.3.2 MultiFlex RCB Board........................................................................................................................................ 11-25
11.7.3.3 AHUs ................................................................................................................................................................. 11-25
11.7.4 Temperature Control.................................................................................................................................... 11-26
11.7.5 Zone Temperature........................................................................................................................................ 11-26
11.7.6 Economizer Control..................................................................................................................................... 11-26
11.7.7 Economization Enable ................................................................................................................................ 11-26
11.7.8 The Effect of Enabling Economization......................................................................................................... 11-27
11.7.9 Dehumidification Control ............................................................................................................................ 11-27
11.7.10 The Zone Humidity Input ........................................................................................................................... 11-27
11.7.11 The Effect of Enabling Dehumidification................................................................................................... 11-27
11.7.11.1 MultiFlex RTUs and RCBs.............................................................................................................................. 11-27
11.7.11.2 AHUs ............................................................................................................................................................... 11-27
11.7.12 Optimum Start/Stop (OSS) ......................................................................................................................... 11-27