OJ Electronics ETN4-1999 User Manual
MCS4-10 / MSD4-1999 / MSA4-10
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All-in-one Thermostat
MANUAL
Thermostat ETN4-1999
67097E 04/16 (HKT)
Languages:
• Suomi, please download the user manual (file no 67306) from www.ojelectronics.com
• English, Deutsch, Русский in this manual
Contents
Introduction ................................................................................ 1
Thermostat operation .............................................................. 1
Temperature setting .................................................................. 1
Settings ...................................................................................... 1
Max. temperature .................................................................... 2
Min. temperature ..................................................................... 2
Max. limit temperature ............................................................. 2
Min. limit temperature .............................................................. 2
Limit function ........................................................................... 2
Frost protection ....................................................................... 2
Night setback / energy-saving function ................................... 2
Measured floor temperature .................................................... 2
Measured room temperature ................................................... 2
English
Application ............................................................................... 2
Scale ........................................................................................ 3
Temperature reading ................................................................ 3
Adjust oset............................................................................. 3
Control method ........................................................................ 3
PWM cycle time ....................................................................... 3
Dierential temperature ........................................................... 3
Relay function .......................................................................... 3
EN50559 .................................................................................. 3
Program version ...................................................................... 3
Child lock .................................................................................. 3
Factory settings ......................................................................... 3
Error messages ......................................................................... 3
Introduction
ETN4-1999 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 -19.5 to +70 °C. The large backlit display
provides a clear view of status, while the three navigation buttons
allow easy menu operation.
ETN4-1999 THERMOSTAT
ON/OFF switch
Left button
Lower temperature
Right button
Raise temperature
Center button
Programming
Thermostat operation
The ON/OFF button is used to turn the thermostat o “0” or on “I”.
When the ON/OFF switch is in position “0”, the relay is deactivated.
All settings are saved.
The thermostat is easily operated using the navigation buttons.
Basic functions like temperature and thermostat settings are simple to perform. Whenever a button is pressed, the backlighting will
come on and stay lit for 30 seconds after a button is last pressed.
Temperature setting
The thermostat has a temperature setting range of -19.5 to +70 °C.
The menu allows limits to be defined for the range within temperature may be set (factory setting = 0-40 °C).
is set using the left- or right-hand button. The temperature setting
flashes on the display. Five seconds after the setting has been made,
the required temperature will be shown on the display continuously.
The required temperature
Settings
To set parameter values, press and hold the centremost button for
three seconds. SCA Hi 40 will appear on the display. Firstly,
SCA will be displayed for 1 second, followed by Hi, and finally 40.
The required value can now be set using the navigation buttons. To
access the next parameter, press the programming button again.
If no button is pressed for 30 seconds, the program returns to the
initial display.
© 2016 OJ Electronics A/S
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ETN4-1999 English
Frost protection
Parameter Shown on display Factory settings
Max. temperature
Min. temperature
Max. limit temperature FLOOR
Min. limit temperature FLOOR
Min. limit temperature Limit function
Frost protection
Night setback
Measured floor
temperature
Measured room
temperature
Application
Scale
Temperature reading
in start display
Adjust oset
Control method
PWM cycle time
Dierential temperature
Relay function
EN50559
Software version
*1
*2
*3
*4
*5
*6
If Regulator (C) is selected under Application, the floor and room sensors are disconnected and heating is controlled on a scale of 0-10, corresponding to 0-100 % of full
power.
*1
*1
*6
: Only available if APp AF is selected under Application.
: Only available if APp Li is selected under Application.
: Only available with external timer.
: With no or disconnected sensor, - - is shown on the display.
: Only available if PWM is ON under Control Method.
: Only available if PWM is OFF under Control Method.
SCA Hi 40
SCA Lo 0
Li Hi 28
Li Lo 15
Li Lo -19,5
*2
dEF 8.0
*3
nSb -5.0
FLo 24.5 (example)
ro 21.5 (example)
APp F (Floor sensor)
A (Room sensor)
Li (Limit function)
AF (Room sensor
C : Regulator
LCd C
dF SP
Adj 24.5 (example)
PWM On
*5
cyc 20
dIF 0.3
rEL no
PLi 0
SU 1.0
with floor temperature limits)
40°C
(0,0/+70°C)
0°C
(-19,5/+60°C)
28 °C
(-19.5/+70 °C + OFF)
15 °C
(-19.5/+70 °C + OFF)
-19,5 °C
(-19.5/+70 °C + OFF)
8 °C
(0/+10 °C)
-5 °C
(-19.5/+30 °C)
*4
*4
F : Floor
C = Celsius
(nU = numerical 0-100 %)
SP = Setpoint
(tP = actual temp.)
Actual temperature
(+/- 10 °C)
On
(OFF)
20 minutes
(10-60 min)
0.3 °C
(0.3/10 °C)
no = normally open
(nc = normally closed)
0 min (0-20 min.)
Max. temperature
The highest temperature to which the thermostat can be set.
Min. temperature
The lowest temperature to which the thermostat can be set.
Max. limit temperature
Allows the highest permissible floor temperature to be set for
wooden and other floor types when control type has been set to
room sensor with floor limit (AF).
Min. limit temperature
Allows the lowest permissible floor temperature to be set for tiled
and other floor types when control type has been set to room sensor with floor limit (AF).
Limit function
If application (APp) is set to limit (Li), the lowest temperature at
which heating is to be provided can be set.
The lowest temperature for frost protection when the function is
activated via an external signal (fig. 4 in instructions).
Example: The setpoint is 25 °C.
Frost protection = 8 °C means temp. setting = 8 °C.
Night setback / energy-saving function
The number of degrees the temperature setting is to be reduced.
The night setback setting must be preceded by a minus sign (-). Is
controlled via an external signal (fig. 3 in instructions).
Example: The setpoint is 25 °C.
Energy-saving function = -5 °C means temp. setting = 20 °C.
Energy-saving function = +3 °C means temp. setting = 28 °C.
Measured floor temperature
Displays actual floor temperature (if a floor sensor is fitted).
Measured room temperature
Displays actual room temperature.
Application
Sets thermostat function. Select the required control type. The
following alternatives exist:
Floor (F): The thermostat controls floor temperature
alone.
A floor sensor must be fitted.
Room (A): The thermostat controls room temperature
alone.
Limit (Li): Limit is an on/o function in which the
required limit is set in Limit low (”Li” ”Lo”)
after selecting the Li option under APp. When
the recorded temperature is above the temperature specified in ”Li” ”Lo”, temperature
is controlled in the usual way towards the
user-specified setpoint. If, on the other hand,
the temperature drops below that specified
in ”Li” ”Lo”, the relay cuts out and ”Lo” appears on the display.
Limit function (APp Li) should be selected if
a limit is required for when heating is permitted to be activated. Only one sensor is used
for the limit function, and this sensor must
be connected to the floor sensor input of the
thermostat.
Room/limit (AF): The thermostat controls room temperature
while respecting min. and max. limits for floor
temperature. A floor sensor must be fitted.
Regulator (C): The thermostat functions as a simple regulator
and no sensors are used. The setting is in per
cent.
”Regulator” mode in combination with
”Night setback”
If both Regulator mode (APp C) and ”Night
setback” are selected, night setback is set in
relative values while frost protection is set in
absolute values in per cent.
The setpoint specifies (in per cent) the time
the unit is to remain active in a PWM cycle,
which is usually 20 min, while setback degree
is specified as a percentage of the setpoint.
The setpoint multiplied by the setback degree
gives the activation degree.
Example: If the setpoint is set to 60 % and
night setback is set to 25 %, the activation
degree will be (0.60 x 0.25 = 0.15) = 15 %.
Graphic example:
2
© 2016 OJ Electronics A/S
ETN4-1999 English
Local
Setpoint
in APP “C”
mode
The black area indicates the percentage cut-
Together with the light grey area, the dark grey
The light grey area is the relative amount of
The default value of setback degree ”night
nSb is inactive as default.
Frost protection ”dEF” has the specified acti-
The diagram should be read as follows:
Furthest to the left is 100 % duration of PWM,
while the vertical lines indicate successive
20 % drops in the time heating is provided
relative to 100 %.
out time determined by the setpoint.
area indicates the relative amount of operating
time when nSb has not been activated, but the
dark grey area cuts out when nSb is activated.
operating time when nSb has been activated
by the above-mentioned values.
setback” (nSb) is 30 %.
vation degree and is unaected by the setback
degree in nSb.
Setpoint
nSb Setback
nSb Activation
degree
Scale
Choose between degrees Celsius and a numerical scale. If the
numerical scale is selected, temperature is set on a scale from 0.0
to 10.0 where 0.0 corresponds to min. temperature (SCA Lo) and
10.0 corresponds to max. temperature (SCA Hi).
Temperature reading
Defines which temperature is to be shown on the start display: the
setpoint (SP) or the actual, measured temperature.
Adjust offset
If the actual temperature (measured using a thermometer) diers
from that displayed by the thermostat, the thermostat can be
adjusted to oset the dierence.
Control method
PWM or ON/OFF control can be selected. PWM is an advanced
control method which calculates the most eective and economical way to heat homes and other buildings. ON/OFF control is
traditional dierential control (e.g. 0.3 °C) for other tasks.
PWM cycle time
Allows cycle time to be set when using PWM control. At least 20
min is recommended.
Differential temperature
Allows temperature dierential to be set when using ON/OFF control. The higher the dierential temperature, the lower the number
of relay operations.
Relay function
When used for heating purposes, the relay should be in normally
open position (NO). If the thermostat is used for cooling purposes,
the relay should be turned to normally closed (NC).
EN50559
This thermostat complies with EN 50559 (VDE 0705-559) for electrical floor heating. The regulation applies to electrical floor heating,
with a maximum floor weight of 4 kN/m². To ensure that hotspots
due to unintentionally covering up the surface are avoided, the
heating function can be time-limited as per EN/DIN.
Note that this function is not applicable to other heating applications such as wall and/or ceiling heating.
If it can be foreseen in advance that unintentional covering up of a
floor might occur, then it is important to assess the correct period
of time for which the floor heating must be time-limited.
The heating can be limited using a set number between 0 - 20
minutes per hour.
Example:
If obstacles could be present that cover up the floor, then the heating might need to be limited by some number of minutes so as to
avoid hotspots in the floor.
If you want the thermostat to heat a maximum of 90 % of the time,
then the thermostat should be limited by 10 %.
Ten percent of one hour is 6 minutes.
Enter 6 min. in the EN50559 menu in order to lower the heating by
10 %.
Equation to calculate number of minutes that could be entered in
the EN50559 menu - when an average heating eect is desired:
Average wanted heating eect pr. m
1-
(
(
Floor heating element eect pr. m
Note! If the result of the equation is negative, then nothing should
be entered.
2
2
∗ 60 min.
)
)
Software version
Displays thermostat software version.
Child lock
Allows thermostats in public and other places to be locked, thus
preventing unauthorised alteration of the settings. Press and hold
the left- and right-hand buttons simultaneously for 10 seconds. A
symbol indicates that the thermostat is locked.
The child lock can be released by pressing the left- and right-hand
buttons simultaneously for 10 seconds.
Factory settings
Allows factory settings to be restored. Your personal settings will
be deleted from the thermostat.
Press and hold the centremost button for 10 seconds. The display
is switched o and then on again. Application is shown on the
display (APp F) followed by the temperature setting.
Error messages
If a fault occurs, the master/thermostat will display one of the following error codes:
Error
Fault Remedy
code
E0 Internal fault. Ther-
mostat defective.
E1 External room
sensor defective
or short-circuited
(terminals 10-11).
E2 External floor sensor
defective or shortcircuited (terminals
8-9).
Replace thermostat.
Replace sensor/sensor cable.
To continue to operate the system
without sensor, set control type to
Regulator under Application
(
APp C).
Replace sensor/sensor cable.
To continue to operate the system
without sensor, set control type to
Regulator under Application
(APp C).
© 2016 OJ Electronics A/S
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3
ETN4-1999 English
Error
Fault Remedy
code
E5 Internal overheating.
Thermostat shuts o
heating.
Check installations. Check that
heating cables are not overloaded
or that ambient temperature is
excessive. When internal temperature drops, the thermostat
automatically reactivates.
VDE Marking
According to the following standards,
EMC+LVD: EN 60730-1
EN 60730-2-9
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
4
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