OJ Electronics ECD4-1991 Manual
OJ Electronics ECD4-1991 Manual

OJ Electronics ECD4-1991 Manual

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MCS4-10 / MSD4-1999 / MSA4-10
Contents
INTRODUCTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
GENERAL OPERATION . . . . . . . . . . . . . . . . . . . . . . . . . 1
EVENT SETTINGS* . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
USER SETTINGS . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2

INTRODUCTION

ECD4-1991 is an all-in-one thermostat for DIN-rail mounting in an
approved cabinet It covers the needs of a variety of applications
in which maximum comfort and minimum energy consumption are
required, e g electric floor heating, frost protection, ice and snow
melting, cooling, etc The thermostat allows a required temperature
to be set within the range -20 to +80 °C The thermostat can switch
on your heating system at predetermined times on different days
of the week For each day of the week, you can set individual
temperatures for different periods, called events
The thermostat comes with a default schedule suitable for most
homes Unless you change the settings, the thermostat will
operate in compliance with the default schedule
Furthermore, the thermostat features an adaptive function that
automatically changes heating period start times so as to ensure
that the required temperature is reached at the set time After three
days the adaptive function has learned when the heating must be
switched on

GENERAL OPERATION

First time settings

The first time you switch the interrupter ON "I", language, time and
date must be set The menu will automatically guide you through the
process
• Choose your language with the arrows ▲▼ and confirm with OK
• Set the actual hour and press the OK button Then set the
minutes Press OK
• Set the actual date: year, month and day Confirm the settings
with the OK button
The thermostat is now ready for use and will control your heating in
accordance with the pre-programmed event schedule, see Factory
settings
ENGINEER SETTINGS . . . . . . . . . . . . . . . . . . . . . . . . . . 3
1
2
2
2
2
2
3
3
3
3
FACTORY SETTINGS . . . . . . . . . . . . . . . . . . . . . . . . . . 6
ERROR CODES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Power interrupter
The power interrupter button turns the thermostat on when
turned up, and off, when turned down, and the relay disengages
but settings included time and date will remaine
Menu / OK
Menu changes to "OK" in the menus and submenus And is used
to accept your choices and move on to the next menu or sub
menu
Comfort / Manual
in the menus these buttons changes to arrow navigation
arrows ▲▼
Back
When you press back in a menu, you are moved 1 step back in
the menu
Exit
When you press Exit in a menu, you are moved to the main display
screen
© 2024 OJ Electronics A/S
M A N U A L
Thermostat ECD4-1991
8 9 10 11 12 13 14
14:08
Wed
20°C
Comfort Menu Manual
1
2 3 4
5 6 7
Navigation buttons
English
3
3
3
4
4
4
4
4
5
5
5
5
5
6
6
1

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Summary of Contents for OJ Electronics ECD4-1991

  • Page 1: Table Of Contents

    ERROR CODES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 INTRODUCTION ECD4-1991 is an all-in-one thermostat for DIN-rail mounting in an 8 9 10 11 12 13 14...
  • Page 2: Operation Mode

    Exit Press OK again in event menu to go to “Time menu” 5:2 4-event : Monday to Friday with 4 events and Saturday to Sunday with 2 events Typically used if you work from Monday to Friday © 2024 OJ Electronics A/S...
  • Page 3: Energy Monitor

    This displays the termostat software version, CF, sensor must be connected Information Temps Contact Regulator : The thermostat functions as a simple regulator and   no sensors are used The setting is a percentage © 2024 OJ Electronics A/S...
  • Page 4: Open Window

    20 % drops in the time heating is provided relative to 100 % The black area indicates the percentage cut-out time determined by the setpoint Together with the light grey area, the dark grey area indicates the relative amount of operating time when nSb has not been © 2024 OJ Electronics A/S...
  • Page 5: Pipe Protection

    Setpoint = 80% = 8 min ON and 2 min OFF Returns to home screen display Default setpoint = 25% ON When the thermostat is in Error mode, the setpoint can be easily adjusted up or down with the arrows ▲▼ © 2024 OJ Electronics A/S...
  • Page 6: Factory Settings

    Check installations Check that heating cables are not overloaded or that ambient temperature is Internal overheating Thermostat shuts off heating not excessive When internal temperature drops, the thermostat automatically reactivates © 2024 OJ Electronics A/S...
  • Page 7 ECD4-1991 English © 2024 OJ Electronics A/S...
  • Page 8 OJ Electronics A/S Stenager 13B · DK-6400 Sønderborg Tel: +45 73 12 13 14 · Fax: +45 73 12 13 13 oj@ojelectronics.com · www.ojelectronics.com...

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