OJ Electronics MCD3-1999 User manual

WWW.OJELECTRONICS.COM

MCD3-1999

User Manual

67869A 03/22 (MTE)

PAGE 2

Table of contents

Table of contents . . . . . . . . . . . . . . . . . . . . . . . . . . 2

Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

Menu overview. . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

Icons . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

Buttons and navigation . . . . . . . . . . . . . . . . . . . . . . . 6

Adjust the heating schedule . . . . . . . . . . . . . . . . . . . . 7

Override the heating schedule . . . . . . . . . . . . . . . . . . . 8

Child Lock . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

Factory reset . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10

Time settings (cLc). . . . . . . . . . . . . . . . . . . . . . .11

Day settings (dAy). . . . . . . . . . . . . . . . . . . . 12

Schedule and events (5chE). . . . . . . . . . . . . . . . . .13

Display settings (Lcd). . . . . . . . . . . . . . . . . . . . . .14

Remote Control (rCt). . . . . . . . . . . . . . . . . . . . . .15

Open Window (OPEn). . . . . . . . . . . . . . . . . . 16

Adaptive start (AdAP). . . . . . . . . . . . . . . . . . 17

Adjust (AdJ). . . . . . . . . . . . . . . . . . . . . . . 18

Software version (-5U). . . . . . . . . . . . . . . . . . 19

Temperature readout (-FtP,-rtP). . . . . . . . . . . . 20

Power limit (P Li ) 1/2 . . . . . . . . . . . . . . . . . . . . . . .21

Power limit (P Li ) 2/2 . . . . . . . . . . . . . . . . . . . . . . .22

Pulse width modulation (PuL5) 1/2 . . . . . . . . . . . . . . .23

Pulse width modulation (PuL5) 2/2 . . . . . . . . . . . . . . .24

Floor temperature limits (FLLo,FLHi). . . . . . . . . . . . .25

Temperature limits (tLLo,tLhi). . . . . . . . . . . . . . . .26

Sensor application (APP). . . . . . . . . . . . . . . . . . . .27

Exiting the menu (donE). . . . . . . . . . . . . . . . . . . . .28

Change of front cover . . . . . . . . . . . . . . . . . . . . . . . .29

Troubleshooting and additional information. . . . . . . . . . . .30

PAGE 3

Introduction

Thank you for buying our MCD3 thermostat.

We hope you will enjoy the ease of use oered by

the well-known user interface and design.

This high-quality thermostat has a minimum impact on

the environment by design and will at the same time

provide you with long-lasting heating comfort.

The thermostat switches on your ﬂoor heating

at preset times each day of the week.

The thermostat is preset with up to four events for

each day of the week. Lowering the temperature

when your home is unoccupied reduces your

energy costs without reducing comfort.

The thermostat comes with preset heating

schedules adjustable to your speciﬁc needs.

A temperature setting range from 0°C to 40°C and an

external override function ensures your comfort and

protects your property.

This thermostat can be used as a controller for electric

room heating pursuant to EN50559.

PAGE 4

Menu overview

Settings Options

CLc (Clock) 00:00 - 23:59

dAY (Day) Mon, TuE, WEd, tHu,

Fri, SAt, Sun

5chE (Schedule) 5-2, 6-1, 1E2, 1E4, 7E4

Lcd1 (Lcd) Set, cLc, --

Lcd2 (Lcd) Set, tP

rCt(Remote

controlled temp.) 5..25°C

OPEn (Open window) On/O

AdAP (Adaptive start) On/O

Adj (Adjust) -9.9..10°C

-5U (Software Version) Readout value

-FtP (Floor temp.) Readout value

-RtP (Room temp.) Readout value

PLi (Power Limit) 0..30

Settings Options

PuL5

(Pulse Width

Modulation)

Aut CYHi: 10..60

CYLo: 10..30

O DiFF: 0.3..10°C

On CYcL: 10..60

FLLo (Floor limit low) 0..40°C

FLHi(Floor limit high) 0..40°C

tLLo (Temp. limit low) 0..40°C

tLHi(Temp. limit high) 0..40°C

APP

(sensor application)

RRoom

FFloor

CRegulator

RF Room w. ﬂoor

limits

RE External room

sensor

donE (Done)

Entry

point for

initial

setup

Entry

point for

daily use

settings

Settings for daily use

Settings for installation

Read out values

PAGE 5

Icons

Icon Meaning Icon Meaning

Schedule operation

Open window

Heating is activated

Child lock is engaged

Manual mode

Temperature scale, Celsius

The thermostat is in regulator

mode APP: C

Setpoint

Remote Control

PAGE 6

Buttons and navigation

The front cover can be ﬂipped down.

The on/o switch is located behind the front cover, on the

left side of the front, up = on / down = o.

On the right there are three buttons: A top button ””, a

middle button ” ”and a bottom button ””.

””: The middle button is used to acess the menu and

conﬁrm changes and settings made in the menu.

”” and ””: The up and down buttons are used to

navigate through the menu and change parameters and

settings.

PAGE 7

Example of a 4-event schedule:

Event 1: From 06:00 to 09:00 the thermostat will maintain a

temperature of 25°.

Event 2: From 09:00 to 16:00 the thermostat will maintain a

temperature of 22°.

Event 3: From 16:00 to 23:00 the thermostat will maintain a

temperature of 23°

Event 4: During the night (From 23:00 to 06:00), a temperature

of 20° is maintained.

00:00 06:00 09:00 16:00 23:00

20°

25° 23°

22°

20°

2 431

Adjust the heating schedule

You can adjust the preset schedule to your own needs, by

adjusting the time and setpoint temperature. To change

the heating schedule, see page 13.

Menu structure:

5chE: 5-2, 6-1, 1E4, 7E4, 1E2

REMOTE

Changing the time and setpoint in an event:

• Press ”” and ”” for 3 seconds to enter schedule

and event settings.

• You can now change the time and temperature

setpoint for event 1 in the chosen schedule.

• Use ”” and ”” to change the time and conﬁrm

with ” ”.

• Use ”” and ”” to change the temperature setpoint

and return with ” ”.

Note: Step 3 and 4 will be repeated either 2 or 4 times

for each day, depending on the number of events in the

chosen schedule (see previous page)

PAGE 8

Override the heating schedule

REMOTE

Override heating schedule

Temporary override:During scheduled operation, you

can either use ”” or ”” to override the programmed

setpoint/temperature. This override will hold until next

scheduled event.

During temporary override, a clock ” ”and manual

mode ” ”symbol are shown on the dispay.

Permanet override:Press the ” ”one time to activate

manual override. The thermostat is now in manual

operation and the setpoint temperature can be adjusted

with ”” or ””.

Press ” ” again to exit manual mode and continue with

scheduled operation. During manual mode override, the

manual mode symbol ” ”is shown on the display.

REMOTE

PAGE 9

Child Lock

REMOTE

Child Lock

The child lock can be activated directly if the thermostat

is idle, or if the thermostat‘s backlight is activated, but

never from within the menu.

• Activate the child lock by pressing ””and ””

simultaneously for 8 seconds, until the padlock ” ”

icon is shown on the display.

• The padlock icon indicates that the childlock is

activated.

• Deactivate the child lock by pressing ”” and ””

simultaneously for 8 seconds, until the padlock icon is

no longer shown in the display.

PAGE 10

Factory reset

REMOTE

Factory reset

• Activate the thermostat by pressing any of the three

buttons. The backlight will be lit.

• Press ” ” for 8 seconds until the factory reset menu

appears.

Note: After 3 seconds the thermostat will enter the

settings - Keep pressing ” ”for additional 5 seconds.

• Use ””or ”” to navigate through the options and

conﬁrm with ” ” .

no: The thermostat will not perform a factory reset.

SchE: The thermostat will return all schedule and event

settings to default.

ALL: All settings in the thermostat will be factory

reset.

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