ONTROL E3122 Owner's Manual

E3122

Universal Controller

Owner’s Manual

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INTRODUCTION

E3122 is an advanced digital controller designed for heating, ventilating, air-conditioning (HVAC)
systems. It can control two different process variables with PI control, cascade, compensation, low and
high limit functions. Thus, it can control two different physical parameters on a single HVAC system
(e.g. temperature and humidity control on a single air handling unit). Or, it can control two different
HVAC systems (e.g. temperature control on two air handling units).

The E3122 must be configured for the particular application that it will be used in. This is easily
achieved using the integral keypad&display or a personel computer. Depending on the installation,
either one or both process controls can be configured. For detailed information on configuration
options, see the “E3122 Engineering Manual”.

BASIC OPERATION

Operating the E3122 is straightforward, efficient and user-friendly. Self-explanatory menu headings
will guide you through the basic functions.

Display

The E3122 can display two lines of alphanumeric text with 16 characters per line.
When the keypad is being used, the display will automatically illuminate for better visibility. If no key is

pressed for a while, the backlight will turn off.

Keypad

In addition to numerical keys, the keypad includes four navigation keys (right, left, up, down) and two
command keys :

Key Function

0 ...... 9 Numerical keys. Use to select menus and change

settings.

Õ

Moves the cursor one character to the left.

Ö

Moves the cursor one character to the right.

×

Moves the cursor or screen up by one line

Ø

Moves the cursor or screen down by one line

9

ACCEPT command key.

8

BACK command key. Displays the previous menu.

Cursor

Whenever a value that you can change is displayed, one of the digits on the screen will be flashing.
This is the cursor.

By pressing any numerical key, you can change the flashing digit. Or, you can press one of the four
navigation keys (left, right, up,down) to move the cursor to the digit you want to change.

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Top Screen

Normally the display will alternately show the measured values of the two main sensors (the sensor
that you adjust the setpoint for).

Temperature

Î

Humidity

Î

Ontrol E 3122

I1 = 16.2 ºC I4 = 62.0 %Rh

This is the top screen. The controller will automatically return to this basic display automatically if no
key is pressed for some time. You can always go back to this top screen by pressing the 8 key
repetitively.

Main Menu

E3122 will guide you to the function that you require by displaying a number of choices and waiting for
you to select one. The choices are organized in “menus” for logical and easy access.

Pressing the 9 key will take you from the top screen to the main menu:

The main menu consists of five items but
only two lines will be visible at a time.

You can scroll through the other items
using the × and Ø keys.

Press a numeric key to select the corresponding menu item. A submenu will be displayed and you can
continue similarly until you find the function or setting that you require.

1.Edit Setpoints

2.View I/O

3.View Process

4.Fix/Unfix I/O

5.Configuration