OJ Electronics MTD3-1999 Manuale utente
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© 2019 OJ Electronics A/S
Table of Contents
Table of Contents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Menu Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Icons. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
APP: Sensor Application 1/2. . . . . . . . . . . . . . . . . . . . . . . . 6
APP: Sensor Application 2/2. . . . . . . . . . . . . . . . . . . . . . . . 7
SCA: Temperature Scale . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Li: Floor Temperature Limit . . . . . . . . . . . . . . . . . . . . . . . . 9
TP: Temperature Read-out. . . . . . . . . . . . . . . . . . . . . . . . 10
LCD: Display Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
ADJ: Adjust . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
NSB: Night Setback . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
DEF: Frost Protection . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
PWM: Pulse Width Modulation 1/2. . . . . . . . . . . . . . . . . . . 15
PWM: Pulse Width Modulation 2/2. . . . . . . . . . . . . . . . . . . 16
PLI: Power Limit 1/2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
PLI: Power Limit 2/2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
TIME: Time and Event Settings 1/2 . . . . . . . . . . . . . . . . . . 19
TIME: Time and Event Settings 2/2 . . . . . . . . . . . . . . . . . . 20
SW: Software Version . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Done: Exiting the Menu . . . . . . . . . . . . . . . . . . . . . . . . . . 22
Troubleshooting and Additional Information . . . . . . . . . . . . 23
Change of Front Cover . . . . . . . . . . . . . . . . . . . . . . . . . . 24
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© 2019 OJ Electronics A/S
Introduction
Thank you for buying our MTD3 thermostat.
We hope you will enjoy the ease of use oered by
the well-known user interface and design.
This high-quality thermostat is designed to have
minimum impact on the environment and will
at the same time provide you with long-lasting
heating comfort.
The thermostat will switch on your heating system
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 will reduce your
energy costs without reducing comfort.
The thermostat comes with preset heating
schedules suitable for most homes.
The MTD3 thermostat has a temperature setting
range of 0-40°C, a night setback, frost protection
and limit temperatures that ensure your comfort
and protect your property from temperature
excesses.
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 access the menu and
confirm changes and settings made in the menu.
The top and bottom buttons are used to navigate
through the menu and change parameters and
settings.
To access the menu, activate the thermostat by
pushing any of the three buttons.
Then press down the middle button for five seconds.
Note: If you press down the middle button for ten
seconds, the thermostat will perform a factory reset
and all settings will then be reset to factory settings.
This thermostat can be used as a controller for electric
room heating pursuant to EN50559.
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© 2019 OJ Electronics A/S
Menu Overview
Menu Setting Options
APP (APP) APP: A; F; C; AF; AE
5gA (SCA) SChi: SCLo - 40.0°C
SCLo: 0.0°C - SChi
Li (Li) Lihi: LiLo - 40°C
LiLo: 0°C - Lihi
tP (tP) FLo: Actual measured temperature
ro: Actual measured temperature
Lgd (LCd) SCA: C; nu
diS: SP; tP
AdJ (AdJ) Measured temperature +/- 10°C
n5b (nSb) 2.0°C - 8.0°C
dEF (dEF) 5.0°C - 10.0°C
Pvm (PWM)
oFF; on; AUt
oFF: diF: 0,3–10,0
on: CYC: 15–60
AUt: CYHi: 10–60
AUt: CYLo: 10–30
Menu Setting Options
Pli (Pli) 0-30 min
t1me (Time)
ModE: o; 5:2; 6:1; 7:0; 0:7
dAY: Non; tuE; UEd; thu; Fri; SAt; Sun
hour: 0-23
Min: 0-59
5v (SW) None
DonE (Done) Save settings and exit the menu
(Options available may vary depending on version)
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© 2019 OJ Electronics A/S
Icons
Icon Meaning Icon Meaning
Scheduled operation
Night setback
Frost protection mode
Heating is activated
Child lock is engaged
Fahrenheit is chosen as
temperature scale
Celsius is chosen as
temperature scale
The thermostat is in regulator
mode APP: C
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© 2019 OJ Electronics A/S
This option allows you to choose which sensor is used to
control the heating system. If a factory reset is performed,
the thermostat will auto detect an external sensor.
• A: With this setting, the internal room sensor inside
the thermostat, controls the heating system.
• F: With this setting, the external floor sensor controls
the heating system.
• C: With this setting, the thermostat operates as a
regulator and no sensors are used. The setting is a
percentage of the full load in steps of 1%.
Note that Floor Protection is not active when using
the thermostat as a regulator.
• AF: With this setting, the internal room sensor controls
the heating system subject to maximum and
minimum limits for floor temperature.
The maximum temperature limit protects wooden
floors from excessive heat.
The minimum temperature limit prevents the floor
from becoming uncomfortably cold when heating
is not needed, such as in a bathroom. Note that
this function will increase energy consumption.
Floor limit temperatures are set in the “Li : Floor
Temperature Limit” menu.
APP: Sensor Application 1/2
• Access the menu.
• Scroll through the menu until you come to APP.
• Press the middle button to enter the SENSOR
APPLICATION setting.
• Use the top or bottom button to select the appli-
cation that fits your installation.
• Confirm your choice with the middle button.
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© 2019 OJ Electronics A/S
APP: Sensor Application 2/2
• AE: With this setting, an optional external room sensor
(connected to the floor sensor terminals) controls
the heating system.
(Options available may vary depending on version)
Menu structure:
APP: A; F; C; AF; AE
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© 2019 OJ Electronics A/S
SCA: Temperature Scale
This option allows you to set the minimum and maximum
temperatures to which the thermostat can be set.
Operating temperatures:
• SChi: Maximum temperature scale can be set between
minimum temperature (SCLo) and 40°C.
• SCLo: Minimum temperature scale can be set between
0°C and the maximum temperature (SChi).
(If “Sensor Application” is set to “Floor”, a maximum
temperature of 27°C can protect wooden floors from
drying out. For detailed information, please ask your
flooring supplier).
• Access the menu.
• Scroll through the menu until you come to SCA.
• Press the middle button to enter the scale settings.
• Use the top and bottom buttons to set the limit for the
highest temperature the thermostat may use as its
setpoint temperature.
• Confirm your choice with the middle button.
• Use the top or bottom button to set the limit for the
lowest temperature the thermostat may use as its
setpoint temperature.
• Confirm your choice with the middle button.
Menu structure:
SCA:
SChi: 0,0°C - 40.0°C
SCLo: 0,0°C - SChi
(Options available may vary depending on version)
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© 2019 OJ Electronics A/S
Li: Floor Temperature Limit
This option allows you to set the minimum and maximum
limits for the floor temperature.
Floor temperature limits:
Floor temperature limits allow you to set the highest (Lihi)
and lowest (LiLo) permissible floor temperature during
room temperature control with the sensor application AF.
If the floor temperature rises above the maximum
temperature limit, the thermostat will deactivate the
heating system to maintain the temperature below the set
maximum.
If the floor temperature drops below the minimum
temperature limit, the thermostat will activate the heating
system to maintain the temperature above the set
minimum.
Note that this feature is only applicable in sensor
application AF.
• Access the menu.
• Scroll through the menu until you come to Li.
• Press the middle button to enter the Limit settings.
• Use the top and bottom buttons to set the limit for the
highest temperature the thermostat may reach.
• Confirm your choice with the middle button.
• Use the top and bottom buttons to set the limit for the
lowest temperature the thermostat may reach.
• Confirm your choice with the middle button.
Menu structure:
Li:
Lihi: LiLo - 40°C
LiLo: 0°C - Lihi
(Options available may vary depending on version)
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© 2019 OJ Electronics A/S
TP: Temperature Read-out
Depending on which sensors are connected and which
sensor application is chosen, temperatures from the floor
sensor and the internal room sensor can be monitored
here.
Display settings are not applicable if the sensor
application is set to C.
• Access the menu.
• Scroll through the menu until you come to TP.
• Press the middle button to enter the temperature
read-out.
Either the floor sensor temperature, the room sensor
temperature, or both are shown depending on the
sensor application setting
• Use the middle button to skip to the next sensor
type and skip to the menu.
Menu structure:
TP:
FLo: Actual measured floor temperature
ro: Actual measured room temperature
(Options available may vary depending on version)
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