Emerson EXD-SH2 - User Manual

EXD-SH1, EXD-SH2
Simplified ordering and installation
with kits that include everything
you need in one box.
Multi-Function Control
Superheat control, temperature control, low
pressure switch, freeze protection
EXD-SH2 can control two valves in
independent circuits
For use with Emerson EX and CV series valves
Temperature & Superheat
Controllers & Kits
Simple Installation
Kits include all components needed for setup
in one box
Integrated keyboard with two line display
eliminates need for additional components
Electrical connection via plug-in type screw
terminals
Self adaptive algorithm eliminates need for
setting PID control for individual systems
Easy System Monitoring
Connect via Modbus to monitoring systems
including Emerson’s E2 system controller
(2)
(2)
(2) (2)
(2) Signifies x2 for EXD-SH2K

Emerson EXD-SH2 Specifications

General

Brand	Emerson
Model	EXD-SH2
Category	Controller
Language	English

Summary

Temperature & Superheat Controllers & Kits

Multi-Function Control

Features superheat, temperature, low pressure, and freeze protection for independent circuits.

Simple Installation

Kits include all components for setup, featuring plug-in terminals and a two-line display.

Easy System Monitoring

Connects via Modbus to monitoring systems, including Emerson's E2 system controller.

Specifications and Product Details

General Specifications

Details supply voltage, power consumption, temperature ranges, humidity, mounting, and housing.

Input, Output, and Refrigerants

Lists available analog/digital inputs, outputs, communication types, and compatible refrigerants.

Controllers and Kits

Details available controllers (EXD-SH1, EXD-SH2) and kits with model and item numbers.

Parts and Accessories

Lists associated parts and accessories with model and item numbers.

General Information, Technical Data, and Safety

General Information and Disposal

Covers controller functions, Modbus communication, and environmental disposal instructions.

Technical Data and Dimensions

Provides specifications for power, sensors, outputs, dimensions, and warnings.

Temperature Setting Modes

Illustrates temperature setting in normal and reverse senses for valve control.

Electrical Connection and Safety

Details wiring, safety instructions, and operating conditions for digital inputs.

Wiring Options and Connections

Wiring Configurations Overview

Illustrates various wiring options including UPS, supercaps, and controller connections.

Terminal Pinouts and Functions

Details the function of each terminal on the EXD-SH1/SH2 controller.

Power Supply and Warnings

Covers power supply requirements, transformer recommendations, and safety warnings.

Controller Operation and Parameter Setup

Preparation for Start-up

Guides on system preparation, valve closure, and refrigerant charging procedures.

Parameter Configuration Mode

Explains how to enter and modify controller parameters using the keypad and password.

Display;Keypad Unit Functions

Describes the controller's display, LEDs, buttons, and various operating modes.

Manual Valve Operation

Details how to manually operate valves for service or maintenance purposes.

Parameter Reference Guide

Parameter List (Scrolling Sequence)

Lists all configurable parameters with codes, descriptions, min/max values, and factory settings.

Circuit 1 Parameters

Details specific parameters for control mode, refrigerant, sensors, and valves for circuit 1.

Circuit 2 Parameters

Details specific parameters for control mode, refrigerant, sensors, and valves for circuit 2.

MOP Default Value Table

Provides default saturation temperatures for MOP function based on refrigerant type.

Error Handling and Troubleshooting

Error;Alarm Handling

Explains common error codes, their descriptions, related parameters, and required actions.

Service and Troubleshooting

Addresses common operational symptoms, their causes, and recommended corrective actions.

Upload;Download Key Function

Describes the procedure for using a key to upload or download controller configurations.