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Emerson iPro.Genius User Manual

Emerson iPro.Genius
54 pages
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Discharge Air Controller (DAC)
Installation and Operational Manual
FW Version 1.04F05
026-1727 Rev 3

Table of Contents

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Emerson iPro.Genius Specifications

General IconGeneral
ManufacturerEmerson
ModeliPro.Genius
Power Supply24 VDC
Enclosure RatingIP20
CertificationsCE, UL, cUL
Controller TypePLC
Communication ProtocolsModbus TCP/IP, Ethernet/IP
InputsDigital, Analog
OutputsDigital, Analog
Programming LanguageIEC 61131-3 (LD, FBD, ST, IL, SFC)

Summary

Mounting and Powering the DAC Unit

Powering the DAC Controller

Details powering the DAC using 24VAC transformers, including transformer size recommendations and wiring.

The MODBUS Network Configuration

Input and Output Setup for DAC

Understanding DAC Inputs

Details the DAC's ability to use physical or network inputs, including analog and digital sensor connections.

DAC Output Configuration

Describes the DAC's 15 relay outputs and 6 analog outputs for controlling loads and features.

Wiring Connection to Site Supervisor

Software Overview of DAC Functions

Space Temperature Control Strategy

Covers DAC's two active space temperature setpoints (cooling and heating) and how they initiate modes.

Supply Temperature Control Logic

Describes how the DAC determines supply air temperature setpoint based on heating/cooling activity and terminal load.

Fan Control Mechanisms

Covers DAC's support for single-speed or variable-speed (VS) fans, controlled based on application mode (CAV or VAV).

Dehumidification Control Methods

Details the DAC's dehumidification methods using mechanical cool stages or a dedicated device.

Outside Air Control Strategies

Covers the use of the outside air damper for economization, indoor air quality, and make-up air strategies.

Control Temperature Sensor Failure Handling

Details how the DAC compensates for sensor failures and the implications of supply temperature sensor failure.

DAC Sensor Calibration Offsets in E2

Explains how to verify and adjust sensor readings for accuracy using calibration offsets in the E2.

E2 Setup Procedures for DAC Integration

DAC Wiring Diagram and Details

Using the Visograph Interface

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