VTM3000
Digital room thermostat
User and service manual
version 1.2
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1.
Device description
Programmable room thermostat VTM3000 is designed for temperature control
in habitable rooms, offices and similar. VTM3000 is for installation to
installation box KU68. Thermostat is equipped by output relay 230 VAC /16 A.
Thermostat is switching between the set requested comfort and savings
temperature according to defined time program. Keeping the requested
temperature is done by optimal supplying of the heating element to achieve the
requested temperature.
VTM3000 has from production predefined most often time programs for
changes between comfort and savings temperature.
VTM3000 can be configured for following systems:
• Room air temperature (temperature sensor is placed in the thermostat body)
• Floor temperature (external floor temperature can be connected to the
thermostat)
• Room air temperature and maximum floor temperature.
VTM3000 thermostat works in following modes:
• TIMED mode enabled. Thermostat regulates according to set time
programs.
• Freezing protection temperature 5°C activated.
• Regulation disabled.
Time mode can be selected from predefined types:
• DAY – each day the same time program is used.
• WORKING WEEK – Monday till Friday there is the same time program.
For Saturday and Sunday another time program.
• WEEK – each day can have unique time program
Time program can have 4 or 6 changes per day between savings and comfort
temperature.
Thermostat offers also special time modes:
• 24h SAVINGS – whole day the savings temperature mode is enabled
• 24h COMFORT – whole day the comfort temperature mode is enabled
• UN-TIMED – thermostat does not react on time changes and regulates only
according to manually set requested temperature.
• User have possibility lock keys against the unauthorized manipulation.
Service menu is possible be protected by access password.
VTM3000 also records to memory time of heating (time of switched relay).
Thanks to this it is possible to see heating time of present day, yesterday, week
and total usage from thermostat installation.
2.
Device control
For thermostat operation and setting there is LCD display and keyboard on front
panel.
• Pressing button Menu browses the user or service menu parameter list.
• Button
turns OFF / ON regulation according to time mode or activates
freezing protection temperature 5°C.
• Button 24hod activates the all day savings or comfort heating temperature.
• Button OK for confirmation of set values and selected parameters.
• Cursor buttons for set value change.
2.1. User menu structure
User menu offers settings of requested temperature, time program configuration,
date and time etc. It provides also information about usage time of heating
system. User menu can be entered by pressing the key Menu. Via arrow keys it
is possible change set values. Key OK confirms changes and another pressing
of key Menu moves to another parameter.
Important
After setting of user values it is recommended to lock keyboard.
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User menu structure:
Symbol
Meaning
Keyboard lock. OFF – keyboard enabled, On –
keyboard locked. All buttons except the button
Menu are locked.
Requested COMFORT temperature (symbol sun).
By arrow keys the value is changed in step of 0.2°C.
Button OK confirms the set value.
Requested SAVINGS temperature (symbol moon).
By arrow keys the value is changed in step of 0.2°C.
Button OK confirms the set value.
Minimum floor temperature. Only if the floor sensor
is configured.
Setting of first time change to comfort temperature.
Time is set by arrow keys in step of 10 minutes. Key
OK confirms the time and jump to another time
change to savings temperature. Number of changes
(4 or 6) and number of days in the week is defined
by setting in service menu.
Setting of second time change to savings
temperature. Time is set by arrow keys in step of 10
minutes. Key OK confirms the time and jump to
another time change to savings temperature.
Number of changes (4 or 6) and number of days in
the week is defined by setting in service menu.
Setting of third time change to comfort temperature.
Time is set by arrow keys in step of 10 minutes.
Button OK confirms the time and jump to another
time change to savings temperature. Number of
changes (4 or 6) and number of days in the week is
defined by setting in service menu.
Time setting. Time is in 24:00 format. Button OK
confirms set value.
Year setting. Button OK confirms set value.
Month setting. OK confirms set value.
Day setting. Button OK confirms set value.
Show the heating day of present day. Example from
picture: today the total heating time was 3 hours and
52 minutes.
Shows the heating time for last day. Example from
picture: last day the total heating time was 8 hours
and 33 minutes.
Shows the heating time for the last week. Example
from picture: last week the total heating time was 9
hours.
Shows the heating time for the all thermostat usage.
Example from picture: heating was used for 20
hours since the thermostat installation.
Erase all saved heating (Clear). Pressing the button
OK confirms erasing the heating profile memory.
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Note
After 1 minute without any action on the keyboard in the user menu,
thermostat turns back to normal operation mode.
2.2. Time mode setting
Assumption for time modes definition is correct setting of used temperature
sensors (AIR, FLOOR), type of time mode (DAY, WORKING WEEK, WEEK)
a number of changes per day (4, 6). Further more thermostat has to be in
TIMED mode, when time changes are accepted.
VTM3000 has predefined time programs and requested comfort and savings
temperatures from production. These values are suitable for most of applications
and are based on experience with movement in residential buildings. All
predefined values can be easily changed and modified.
Default values are:
• Comfort temperature 25°C
• Savings temperature 15°C
• 6 changes per day: (06:00-comfort, 08:00-savings, 12:00-comfort, 14:00savings, 16:30-comfort, 22:30-savings)
• 4 changes per day: (06:00-comfort, 08:00-savings, 16:30-comfort, 22:30savings)
Icon of house with arrow out symbolizes switching to savings temperature
(person leaves house).
Icon of house with arrow in symbolizes switching to comfort temperature
(person comes to house).
2.2.1 Comfort temperature change
Keep pressing the button Menu until screen with
symbol
will appear:
By using cursor keys set requested comfort temperature.
By key OK confirm set temperature.
2.2.2 Savings temperature setting
Press key Menu, until following screen with symbol
will appear.
By using cursor keys set requested savings temperature.
By key OK confirm set temperature.
2.2.3 Time program setting
Press key Menu, until the following screen with symbol
for first time change on comfort temperature
appears.
By cursor key set requested time of change (setting with
stop of 10 minutes). By pressing key OK confirm the time. Second time of
change on savings temperature will appear, symbolized by
. Setting the time
is the same as for first change. Follow the same procedure until all time of
changes are set. Number of changes depends on type of time mode (DAY,
WORKING WEEK, WEEK) and set number of changes per day (4 or 6).
By pressing the key Menu it is possible to escape at any time from setting of
time program and continue in user menu.
2.2.4 Manual temperature change of time program
If keyboard is not locked, it is possible to increase or
decrease requested temperature manually. For changing
the requested temperature use cursor keys ▲ (+) or ▼
(-). Set value confirm by pressing key OK. On the
display the symbol
for manually set temperature
will appear and thermostat starts to show actual temperature again.
Manually set temperature is valid only until next change according time time
program. Manually set temperature cannot be displayed.
2.2.5 Activation of day comfort temperature
If there is request for whole day comfort temperature,
press once the key 24h. Following screen with symbols
and 24h will appear. Confirm it by pressing key OK
and on the main screen will appear symbols
and
24h.
2.2.6 Activation of day savings temperature
If there is request for whole day savings temperature,
press twice the key 24h. Following screens with
symbols and 24h will appear. Confirm it by pressing
the key OK and on the main screen will appear symbols
and 24h.
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2.2.7 Deactivation of day comfort or savings temperature
For deactivation of whole day comfort or savings temperature press once key
24h. Main screen without symbols for whole day comfort or savings
temperature will appear.
2.3. Manual mode
Thermostat VTM3000 allows manual operation without
any time changes in the mode UNTIMED. Thermostat
regulates only according to manually set temperature.
UNTIMED mode can be activated in service menu. On
the device display is shown only current temperature
and information about hearing status.
By arrow keys set the requested temperature and confirm it by pressing button
OK. Thermostat starts to regulate on this temperature without considering the
time programs and modes. Manually set requested temperature cannot be shown
on the display. To switch heating on the requested temperature has to be higher
than current ambient temperature at least about 1°C.
2.4. Service menu structure
Service menu contains settings for system configuration and essential
thermostat behaviour. Entering the service menu is possible by simultaneous
pressing of buttons OK and Menu. Arrow buttons change values. Button OK
confirms set changes. Pressing the button Menu moves to another parameter in
the menu.
Important
Service menu should be entered only by authorized person. Access to
service menu is recommended to be protected by password.
Symbol
Meaning
Maximum floor temperature settings. Only in case
that floor sensor is configured.
Temperature sensor configuration.
F – floor sensor
A – air sensor
FA – floor and air sensor
TIMED/UNTIMED mode. If set value t (timed) = 1,
thermostat uses time programs. If set value t (untimed)
= 0, thermostat ignores time programs and regulates
only according manually set requested temperature. In
this case it behaves as a standard thermostat.
Predefined time mode types.
d1 = day mode
d5:2 = week mode (5 working + 2 free days)
d7= week mode
Number of changes between comfort and savings
temperature during day. There can be 4 or 6 changes
per day.
Method of showing floor sensor temperature. It is
active if the system configuration is only for F – floor
sensor. Value F:0 show temperature in °C. Value F:1
shows temperature in scale 0 – 13.
Delayed start of thermostat operation. Regulation
process will start after set delay elapsing. Time is set
in days and it is recommended to be used only by
installers.
Reset to default factory settings. After confirming by
pressing the button OK all settings will be returned
back to default factory settings.
Password for access to service menu. By arrow keys
choose the number and confirm by key OK. Follow
the same procedure until the four number code is set.
Note
After 1 minute without any action on the keyboard in the service menu,
thermostat turns back to normal operation mode.
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2.5. Time backup
All settings are safely stored at internal nonvolatile memory. Time and date is
backed up by lithium battery of 3 V (type CR2032).
If the symbol
appears on the display, it is necessary to replace the battery.
Important
Battery has to be installed with correct polarity! (+ pole on the top
and – pole on the bottom)
3.
Installation
Thermostat VTM3000 is designed for wall mounting in to the installation box
KU68. Power supply of thermostat is 230 VAC and IP rating IP31. Load (heater)
has to be of resistive type. Maximum allowed current on output terminals (No. 4
and 5) is 16 A at cosφ = 1. If the floor sensor is used, the type of floor sensor
delivered with thermostat has to be installed.
After opening thermostat front cover and unscrewing two screws, it is possible
push out the controlling part from the supply part. On the bottom side of the
control part is DIL switch with following functions:
• FLOORS TILE / WOOD 35°C / 28°C. Maximum predefined floor
temperature 35°C for tile wood – position OFF or maximum predefined
floor temperature 28°C for wooden floor – position ON.
• AIR SENS. Air sensor is enabled – ON, disabled – OFF.
• GMT+1hr at position ON. Adds 1 hour to set time.
• GMT+2hr at position ON. Adds 2 hours to set time.
• GMT+1hr and GMT+2hr at position ON. Adds 3 hours to set time.
By this DIL switch is possible to set some thermostat
features without accessing the service menu. Function
description is on the label placed on the processor. All
parameters of DIL switch can be changed also in service
menu.
Verify sensor settings after the thermostat installation.
Error codes:
E2 – temperature higher than 40°C
E4 – short circuit of floor temperature sensor
E5 – disconnected floor temperature sensor
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4.
Symbols description
There are several symbols, shown on the display, which represents additional
information about device status. Symbols are following international standards
for easy understanding.
Symbol
Meaning
24 hours mode is activated. Whole day is set on comfort
temperature or savings temperature
Keyboard locked
Device is in service mode for parameters setting
Setting of minimal temperature – savings temperature
Setting of maximum temperature – comfort temperature
1st time change on comfort temperature
2nd time change on savings temperature
3rd time change on comfort temperature
4th time change on savings temperature
5th time change on comfort temperature
6th time change on savings temperature
Monday
Tuesday
Wednesday
Thursday
Friday
Saturday
Sunday
Comfort temperature mode
Savings temperature mode
Time setting
Date setting
Manual change of requested temperature
Air temperature
Floor temperature
Heating
Freezing protection temperature activated
Discharged battery warning
5.
Floor sensor temperature scales
In the service menu it is possible set the way of showing the floor sensor
temperature. Setting F:0 shows temperature in °C. Setting F:1 shows
temperature scale in steps 0 – 13.
• 0 (15.6°C and less)
• 8 (32.6°C – 34.8°C)
• 1 (15.8°C – 18.0°C)
• 9 (35.0°C – 37.2°C)
• 2 (18.2°C – 20.4°C)
• 10 (37.4°C – 39.6°C)
• 3 (20.6°C – 22.8°C)
• 11 (39.8°C – 42.0°C)
• 4 (23.0°C – 25.2°C)
• 12 (42.2°C – 44.4°C)
• 5 (25.4°C – 27.6°C)
• 13 (44.6°C and more)
• 6 (27.8°C – 30.0°C)
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