OJ Electronics MCD5-1999 Instruction Manual

67384B 06/16 (HKT)

© 2016 OJ Electronics A/S

MCD5-1999

MCD5-1999

INSTRUCTIONS

• English

GREEN COMFORT

Maximum comfort with low energy consumption

MCD5-1999

BR1017A02

BR1017A01

ILLUSTRATIONS

Pages .................................................................................... 3

INSTRUCTIONS

English .................................................................................. 7

Fig. 1

BR1017A01BR1017A02

Fig. 2

2

© 2016 OJ Electronics A/S © 2016 OJ Electronics A/S

© 2016 OJ Electronics A/S

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MCD5-1999 MCD5-1999

BR1017A05A

653 421

N

L

BR1017A06

Fig. 3

BR1017A03A

Fig. 5

L
N

BR1017A05A

Fig. 4

1.5m

BR1017A03a

653 421

BR1017A05aBR1017A06

Fig. 6

1

3

2

BR1017A04c

4

© 2016 OJ Electronics A/S

© 2016 OJ Electronics A/S

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MCD5-1999

1

NTC 12kΩ @ 25°Celsius

°Celsius

°Fahrenheit

Ohm (Ω)

-10°C 14°F 55076Ω

0°C 32°F 34603Ω

10°C 50°F 22284Ω

20°C 68°F 14675Ω

30°C 86°F 9860Ω

Fig. 7

MCD5-1999

1

2

Instruction
English

Fig. 8

ON

OFF

Fig. 9

6

4

4

Manual

Auto

3

FIG. 1 - CONTENT

• Thermostat

• Sensor

The thermostat is an electronic PWM/PI thermostat for temperature
control by means of an NTC sensor located either externally or

BR1017A14BR1017A07

internally within the thermostat.
The thermostat is for flush mounting in a wall socket. A baseplate
for wall mounting is also available.

BR1017A07

This thermostat can be used as a controller for electric room heating
pursuant to EN50559.

Product programme

OCD5-1999/MCD5-1999 Clock-thermostat with two sensors:

2

Menu

floor sensor and built-in room sensor.

FIG. 2 - WARNING – Important Safety Instructions

Disconnect the power supply before carrying out any installation or
maintenance work on this thermostat and associated components.
The thermostat and associated components should only be installed
by a competent person (i.e. a qualified electrician). Electrical instal­lation must be in accordance with appropriate statutory regulations.

FIG. 3 - THERMOSTAT PLACEMENT
Mounting of sensor

The floor sensor contains a safety extra-low voltage (SELV) circuit,
allowing it to be placed as close to the floor surface as possible
without having to take account of the risk of shock should the sen­sor cable become damaged. The two wires connecting the sensor
to the mounting box must be additionally insulated, e.g. shrink flex.
To prevent loose wires in the fixed installation from coming into
contact with the terminal block for the floor sensor, they must be
restrained using cable ties.

BR1017A17

© 2016 OJ Electronics A/S

© 2016 OJ Electronics A/S© 2015 OJ Electronics A/S

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MCD5-1999 English

It is strongly recommended that the cable and sensor are placed in
a non-conductive installation pipe embedded in the floor. The end
of the pipe must be sealed and the pipe placed as high as possible
in the concrete layer. Alternatively, the sensor can be embedded
directly in the floor. The sensor cable must be led through a sepa­rate conduit or segregated from power cables.
The floor sensor must be centred between loops of heating cable.

The sensor cable may be extended up to 100 m by means of a
separate two-core cable. Two vacant wires in a multi-core cable
used, for example, to supply current to the floor heating cable must
not be used. The switching peaks of such current supply lines may
create interference signals that prevent optimum thermostat func­tion. If a shielded cable is used, the shield must not be connected
to earth (PE). The two-core cable must be placed in a separate
pipe or segregated from power cables in some other way.

Mounting of thermostat with built-in sensor

The room sensor is used for comfort temperature regulation in
rooms. The thermostat should be mounted on the wall approx.

1.6 m above the floor in such a way as to allow free air circulation
around it. Draughts and direct sunlight or other heat sources must
be avoided. No external sensor is connected.

FIG. 4 - OPENING THE THERMOSTAT

1. Slide the power button down to O “0”.

2. Release the front cover ONLY by inserting a small screwdriver
into the slot at the centre of the bottom side of the front cover to
press and hold the catch securing the front cover.

3. Then carefully pull the front cover away, initially from the lower
part of the thermostat, then from the upper part of the thermo­stat.

MCD5-1999 English

FIG. 6 + 7 - MOUNTING THE THERMOSTAT

1. Mount the thermostat in the wall socket.

2. Fit the frame and carefully press the cover onto the thermostat

- starting with the upper part of the cover, then the lower part of
the cover. Ensure that both the power slide button on the cover
and the power switch pin in the thermostat are down.

3. Click the cover into place by applying light, even pressure.
Warning! Do not apply pressure to the corners of the display
cover or to the display itself.

DO NOT open the thermostat by releasing the four fixing clips on
the back.

FIG. 8 - OPERATING THE THERMOSTAT

There is an ON/OFF switch on the left side of the thermostat: up is
ON - down is OFF.
The resistive touchscreen requires a soft tap with your fingertip to
register the touch.
Installer Wizzard:
The first time the thermostat is connected, push the power slide
button to On “I” The Installer Wizard on the touchscreen will guide
you through the set up of:

1. Region

2. Language

3. Date

4. Time

5. Floor Type

Programming

See user manual.
http://www.ojelectronics.com/OCD5

FIG. 5 - CONNECTIONS

Connect the wires in accordance with the diagram. The wires must
be connected as follows:
Term. 1: Neutral (N)
Term. 2: Live (L)
Term. 3-4: Output, max. 16 A
Term. X: Do not connect
Term. 5-6: External floor sensor

8

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© 2016 OJ Electronics A/S

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MCD5-1999 English

FIG. 9 - TROUBLESHOOTING

If the sensor is disconnected or short-circuited, the heating system
is switched o. The sensor can be checked against the resistance
table.

Error codes

E0: Internal fault. The thermostat must be replaced.
E1: Built-in sensor defective or short-circuited. Replace the ther-

mostat, or use the floor sensor only.

E2: External sensor disconnected, defective or short-circuited.

Reconnect the sensor if disconnected, or replace the sensor.

E5: Internal overheating. Inspect the installation.

CE marking

According to the following standard:
LVD/EMC: EN 60730-2-9

Classification

Protection from electric shock must be assured by appropriate
installation. Appropriate installation must meet the requirements of
Class II (enhanced insulation).

Environment and recycling

Please help us to protect the environment by disposing of the
packaging in accordance with national regulations for waste
processing.

MCD5-1999 English

TECHNICAL DATA

Voltage ........................................................................ 100-240 VAC

Max. pre-fuse .............................................................................16 A

Built-in circuit breaker .................................................. 2-pole, 16 A

Output relay ........................................... make contact - SPST - NO

Output .............................................................................. max. 16 A

Terminal wire size ......................................................... 1.5-2.5 mm2

Control principle .................................................................. PWM/PI

Standby power ........................................................................ 0.5 W

Battery backup ..................................................................... 5 years

Action type .................................................................................. 1.B

Software class .................................................................................A

TB ............................................................................................ 125°C

ELV limits realized ............................................................. SELV 24 V

Pollution degree rating.....................................................................2

Rated impulse voltage ............................................................... 4 kV

Enclosure rating ........................................................................ IP 21

Dimensions .................................................. H/115, W/84, D/40 mm

Build-in depth ........................................................................ 23 mm

Display ...................................... 176x220 pixel TFT - resistive touch

EU registered design .................................................... DM/082270

The thermostat is maintenance free.

Recycling of obsolete appliances

Appliances with this label must not be disposed of
with general household waste. They must be collected
separately and disposed of in compliance with local
regulations.

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© 2016 OJ Electronics A/S

© 2016 OJ Electronics A/S

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MCD5-1999

OJ ELECTRONICS A/S

Stenager 13B · DK-6400 Sønderborg
Tel.: [phone] · Fax [phone]
[e-mail] · www.ojelectronics.com

The trademark is registered and belongs to OJ Electronics A/S · © 2016 OJ Electronics A/S

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© 2015 OJ Electronics A/S