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Stulz E2 Series User Manual

Stulz E2 Series
76 pages
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E
2
Series
Microprocessor Controller
For STULZ Perimeter
Precision Air Conditioners
Operation Manual

Table of Contents

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Stulz E2 Series Specifications

General IconGeneral
SeriesE2 Series
ManufacturerStulz
Input Voltage24 V AC/DC
Protection ClassIP20
Humidity Range5 to 95 % RH, non-condensing
Communication ProtocolModbus RTU, BACnet MS/TP
DisplayLCD with backlight
MountingDIN rail
TypeController

Summary

General Information

Forward

Introduction to the STULZ E2 Series Controller and its manufacturer.

Safety Summary

Instructions for understanding safety information within the manual.

Warnings and Cautions

Explanation of warning and caution symbols and statements used in the manual.

Description of STULZ E2 Series Controller

General

Overview of the STULZ E2 Series Controller's capabilities and design.

Features

Lists key features of the STULZ E2 Series Controller.

User Interface Terminals

Details the different types of user interface terminals available.

Controller Models

Describes the different controller models and their I/O modules.

Startup Procedures

Navigating Controller Screens

Explains how to navigate through the controller's display menus.

Password Authorization Levels

Details password protection and authorization levels for accessing menus.

Starting the A/C System

Step-by-step guide for initial start-up of the A/C system.

Setpoint Adjustment

Instructions for adjusting temperature and humidity setpoints.

Saving and Restoring Setpoint Parameters

How to save and restore controller setpoint parameters.

Alarms

Overview of alarm conditions and their handling.

Operation of STULZ E2 Series Controller

General Operation

Describes the controller's role in operating the A/C system.

Temperature/Humidity Sensors

Explains the types and functions of temperature and humidity sensors.

Control Signals

Details how control signals are processed by the controller.

Temperature/Humidity Control

Describes the methods for controlling temperature and humidity.

Operating Configurations

Details various operating modes like Cooling, Heating, etc.

Airflow/Fan Speed Control

Explains how the controller manages airflow and fan speed.

Controller Communication

Discusses communication methods for the controller.

Remote On/Off

How to control the unit remotely using an On/Off switch.

Weekly Timer

How to set up an operating schedule using the weekly timer.

Dual Power Transfer Switching

Details the optional dual power transfer switching feature.

Tandem Compressors Operation

How the controller manages tandem compressor staging for efficiency.

Shadow Units

Information on controlling multiple units as shadow units.

Menu Screens and Controller Settings

Main Menu

Describes accessing the main menu and its available options.

Information Menu

Overview of the Information menu for viewing system status.

Alarm Log

Explains how to view and manage the alarm log.

Control Menu

Access to setpoints, alarm setpoints, clock, and version information.

Service Menu

Access to advanced settings, calibration, and diagnostics.

Economizer Operation

Economizer Information Menu Screens

Displays key operating parameters for economizer mode.

Economizer Service Menu Screens

Screens for setting up and testing economizer operation.

Enabling Economizer Operation

How to enable and configure economizer operation.

Communication With the Controller

Work Groups

Details setting up and managing work groups of multiple A/C units.

Setting Up a Work Group

Step-by-step guide for configuring A/C units into a work group.

BMS Communication

Information on connecting the controller to a Building Management System.

Maintenance and Repairs

General Maintenance

Recommendations for routine maintenance of the controller.

Troubleshooting

Guide for diagnosing and resolving controller problems.

Repair Procedures

General procedures for unit repair and component replacement.

Control I/O Module Signal LED's

Explains the meaning of signal LEDs for diagnostics.

Product Support

Factory Authorized Start Up/Warranty Inspection

Details the importance and process of factory start-up and warranty inspection.

Technical Support

Information on how to contact STULZ Technical Support.

Obtaining Warranty Parts

Procedures for obtaining warranty replacement parts.

Obtaining Spare/Replacement Parts

Guidance on purchasing spare and replacement parts.

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