OJ Electronics ECD4-1991 Anleitung

I N S T R U C T I O N S
Type ECD4-1991
67676 11/23 - (LSK)
English ..............................................................1
Français ............................................................2
Deutsch ............................................................3
English
INTRODUCTION
The ECD4-1991 All-in-one is an electronic on/
off thermostat for 1 or 2 NTC sensors located
externally.
An All-in-one thermostat for many application
types:
• Electrical floor heating
• Frost protection
• Ice and snow melting
• Cooling
The thermostat should be DIN rail mounted.
This thermostat can be used as a controller for
electric room heating pursuant to EN15500.
IMPORTANT SAFETY INSTRUCTIONS
Warnings
To avoid electric shock, disconnect
the heating system power supply at
the main panel before carrying out any
work on this thermostat and associated
components.
Installation must be carried out by qualified per-
sonnel in accordance with appropriate statutory
regulations (where required by law).
Installation must comply with national and/or
local electrical codes.
Cautions
This instruction must be observed,
otherwise the liability of the manufac-
turer shall be voided.
Any changes or modifications made
to this thermostat shall void the liabil-
ity of the manufacturer.
Maximum product lifetime is achieved if the
product is not turned off but set at the lowest
possible set point / frost protection when heat is
not required.
Notice
The language used in the original
documentation is English.
Other language versions are a transla-
tion of the original documentation.
The manufacturer cannot be held liable
for any errors in the documentation. The manu-
facturer reserves the right to make alterations
without prior notice.
Content may vary due to alternative software
and/or configurations.
DISPOSAL AND RECYCLING
Environment and recycling
Protect the environment by disposing of the
package in compliance with local regulations for
waste processing.
Polski ................................................................4
Česky ................................................................6
Suomi ................................................................7
Recycling of obsolete appliances
Equipment containing electrical
components must not be disposed
of along with domestic waste.
It must be separately collected to-
gether with electrical and electronic
waste in accordance with current
local regulations.
PRODUCT PROGRAMME
ECD4-1991 Thermostat incl. floor sensor
SENSORS & ACCESSORIES
ETF-944/99-H External room sensor
FIG. 1 - INSTALLATION OF THERMOSTAT
The thermostat should be DIN rail mounted.
To prevent loose cables from the fixed instal-
lation from coming into contact with the
terminal block for the floor sensor, they must be
restrained using cable ties.
Connections
Ensure that the main and load cables are con-
nected
as shown in the figure.
Term. 1: Line (L1) 230 V ±10%, 50/60 Hz
Term. 2: Neutral (L2/N)
Term. 3: Output for control, max. 100mA
Term. 4–5: Load, max. 16 A / 3600 W
Term. 6: Input, night setback (S)*
Term. 7: Input, frost protection (❆)
Term. 8-9: External floor sensor (SELV)
Term. 10-11:External room sensor (SELV)
Term. X: Do not connect
Note: Use a Phillips PH2 or slotted 4x0.8
mm screwdriver. Screws must be tight-
ened to a torque of 0.5 Nm.
FIG. 1A+1B - NIGHT SETBACK / FROST
PROTECTION
The thermostat has 2 inputs for night setback
and frost protection.
Note: Do not use night setback and frost
protection at the same time.
FIG. 2 - MOUNTING OF SENSORS
You can use the thermostat with external sen-
sors for room and/or floor.
The terminals for the sensor contain a safety
extra-low voltage (SELV) circuit, allowing the
sensor to be placed as close to the floor surface
as necessary without the risk of electric shock,
should the sensor cable become damaged.
Sensor cable recommendations
The following recommendations apply to all
temperature sensor cables:
The sensor cable may be extended with addi-
tional two-core cable (max. sensor extension,
see technical specification).
The two wires from the sensor to the thermostat
must be kept separate from high voltage wires/
cables.
Place the sensor cable in a separate conduit or
segregate it from power cables in some other
way.
Never use two vacant wires in a multi-core
cable.
Shielded cable does not connect the shield to
earth (PE).
Mounting of external floor sensor
The floor sensor is used for comfort tempera-
ture regulation in rooms on the basis of floor
temperature.
Insert the cable and sensor into a non-conduc-
© 2023 OJ Electronics A/S
Nederlands .......................................................8
Svenska ............................................................9
tive conduit embedded in the floor.
The end of the conduit must be sealed and
the conduit placed as high as possible in the
concrete layer.
The floor sensor must be centred between
loops of heating cable.
FIG. 3 - Mounting of external room sensor
The room sensor is used for comfort tempera-
ture regulation in rooms based of the room
temperature.
The external room sensor must be mounted on
the wall
approx. 1.4 - 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.
OPERATING THE THERMOSTAT
To turn on the thermostat , push the power
slide button up to On "I". The backlit display will
briefly show the logo and then the home screen.
Settings
Allows settings in the menues "Event and User
and Engineer settings" to be changed.
Press the center Menu button.
Press arrow < > until you see Event, User or
Engineer settings.
Press OK to enter sub menues.
Read the manual for more information.
Programming
See user manual.
FIG. 4 - TROUBLESHOOTING
If a sensor is disconnected or short-circuited,
the heating system is switched off. The sensor
can be checked against the resistance table.
Error codes
E0: Internal sensor error. The thermostat must
be replaced.
E1: External room sensor short-circuited or
disconnected (terminal 10-11).
E2: External floor sensor short-circuited or
disconnected (terminal 8-9).
E5: Thermostat overheated. Heating switced
off. Thermostat will resume heating when
temperatures again are within limits.
Factory reset
Allows factory settings to be restored. Your
personal settings will be deleted from the
thermostat.
Press the center menu button.
Press arrow until you see Engineer settings and
press OK.
Press arrow < > to find Factory reset and press
OK
Read the manual for more information.
MAINTENANCE
The thermostat is maintenance free.
APPROVAL AND STANDARDS
CE marking
OJ electronics hereby declares under sole re-
sponsibility that that the product complies with
the following European Parliament directives:
• LVD - Low voltage : 2014/35/EU
• EMC - Electromagnetic compatibility :
2014/30/EU
• RoHS - Hazardous substances: 2011/65/EU
and amendment annex II: EU/2015/863
• Eco-design frame directive. req. for energy-
related products: 2009/125/EC.
- Regulation EU 2015/1188 req. for local
space heaters.
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