Emerson EXD-SH1 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-SH1 Specifications

General

Brand	Emerson
Model	EXD-SH1
Category	Controller
Language	English

Summary

Temperature & Superheat Controllers & Kits

Multi-Function Control

Superheat control, temperature control, low pressure switch, freeze protection. Controls two valves independently.

Simple Installation

Kits include all components for setup in one box, featuring integrated keyboard, two-line display, and plug-in terminals.

Easy System Monitoring

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

Operating Instructions

Disposal Information

User responsibility to pass waste electrical and electronic equipment to a designated collection point for safe recycling.

Electrical Connection and Wiring

Refer to the electrical wiring diagram for electrical connections. Keep controller and sensor wiring separated from supply power cables.

Safety Instructions

Read instructions thoroughly. Disconnect all voltages before installation/service. Ensure all connections are complete.

Wiring Options Overview

Wiring Diagram Explanation

Explanation of terminal connections for EXD-SH1/SH2 with UPS or Supercap modules, including circuit and component identification.

Electrical Connection Warnings

Use class II transformers, do not ground 24VAC lines, and use individual transformers to avoid interference and grounding issues.

Parameter Configuration and Operation

Preparation for Start-up

Steps for initial system setup, including vacuuming the circuit and charging the system with refrigerant after valve closure.

Parameter Setup Guide

Instructions for setting essential parameters like password, function type, refrigerant, and sensor types before system startup.

Display and Keypad Functions

Description of controller display elements, button functions, and modes for parameter setting and instant value display.

Manual Valve Operation

Procedure for manual valve control for service or maintenance, including setting parameters for manual mode and valve opening.

Parameter List and Settings

Parameter Configuration Table

Comprehensive list of controller parameters, their codes, descriptions, min/max values, and factory settings for EXD-SH1 and EXD-SH2.

MOP Default Value Table

Table showing default MOP saturation temperatures for various refrigerants, aiding in setting the Maximum Operating Pressure function.

Error Handling and Troubleshooting

Control Valve Startup Behavior

Factory settings for control valve startup behavior based on valve type (EX4/EX7/EX8/CV) and timing specifications.

Alarm Code Descriptions

List of alarm codes, their related parameters, alarm relay behavior, required actions, and whether the alarm requires manual resolution.

Service and Troubleshooting Guide

Common symptoms, their potential causes, and recommended actions for troubleshooting controller and system operation issues.