Jung TRDA523028 Series, TRDLS923028 Series, TRDA523048 Series, TRDLS923048 Series Operating Instructions Manual
Temperature controller fan coil, 2-/4-pipe
Temperature controller fan coil, 2-pipe
Art. No. : TRDA523028..
Temperature controller fan coil, 2-pipe
Art. No. : TRDLS923028..
Temperature controller fan coil, 4-pipe
Art. No. : TRDA523048..
Temperature controller fan coil, 4-pipe
Art. No. : TRDLS923048..
Operating instructions
1 Safety instructions
Electrical devices may only be mounted and connected by electrically skilled
persons.
Serious injuries, fire or property damage possible. Please read and follow manual fully.
These instructions are an integral part of the product, and must remain with the end
customer.
2 Function
Intended use
- Switching and operating electrical fan coil units with electrothermically actuated
heating/cooling valves
- Measurement and feedback control of the room temperature
- Installation in appliance box according to DIN 49073
Product characteristics
- Connection of one fan coil unit with up to 3 fan stages
- Operating modes for heating, cooling or combined heating/cooling operation
- Variants for 2-pipe or 4-pipe operation
- 8 capacitive sensor buttons
- Internal temperature sensor
- Room temperature controller function
- Preselection of the current energy level through the option of 5 temperature profiles for use
in hotels or similar sites
- Display for indication of temperature (°C or °F), fan level, operating mode/profile
- Menu levels blockable
- 1 status LED (red/green/blue)
- Brightness and contrast adjustable
- Switch-off time of the display illumination up to 120 seconds
- Extension input to the connection of, e.g. hotel card switch (see accessories)
3 Operation
Setpoints for room temperature and fan stage – Profiles
The selection of the current setpoints for room temperature and fan stage is based on so-called
profiles that are specified by the user on site. The following situations are covered, e.g.:
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Figure 1: Temperature setpoints for heating and cooling for the individual profiles
- "Comfort" profile:
The hotel room is occupied, the hotel guest is present. The room temperature is set to a
comfortable value.
- "Comfort–" profile ƕ (if a hotel card switch is installed):
The hotel guest is not present. The setpoints are set to an energy saving level; the values
of the "Comfort" profile can be reached quickly.
As soon as a hotel guest inserts the hotel card into the available hotel card switch, the
controller switches to the "Comfort" profile.
- "Eco" profile Ɣ:
It is night, the controller controls the connected fan coil units and puts them into an energysaving and silent operation.
- "Standby" profile Ɠ:
Currently the room is not in use. The energy level is set such that only minimum heating/air
conditioning costs are incurred by the owner.
- "Building Protection" profile Ɩ:
When the environment raises or lowers the room temperature to a level that could damage
the building, the controller automatically activates the building protection operation. The
setpoint temperatures are permanently set (heating: + 7 °C; cooling: +45 °C).
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Temperature controller fan coil, 2-/4-pipe
Operating elements
Figure 2: View
(1) Temperature setpoint adjustment ‰ƞ / ‰Ɵ
(2) Manual setting of the fan stage şƞ / şƟ
(3) Status LED
(4) Switchover to the Eco Ɣ profile
(5) Fan stage automatic mode ƪ
(6) Switchover to the Standby Ɠ profile
(7) Switchover of the temperature display Celsius/Fahrenheit °C/°F
Operating modes and display icons
The device compares the current room temperature with the setpoint temperature and controls
heating or cooling devices according to the current demand. The setpoint temperature depends
on the currently set profile and can be changed by the user, depending on the setting. The
current operating state is displayed.
Icon Meaning
No icon Comfort profile
ƕ Comfort– profile
Ɣ Eco profile
Ɠ Standby profile
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Ɩ Building Protection profile
Ť Heating
ŵ Cooling
‰ Setpoint temperature
ş Manual fan level
ƪ Automatic fan level
Status LED
The status LED shows the current operating mode of the controller or the actuation of the
sensor buttons or both.
LED colour Profile
Green or off Comfort, comfort–, eco
Red or off Standby, building protection
Green flashing signals actuation of the sensor buttons.
Operating level and menu levels
The current profile with setpoints for room temperature and fan stage is preselected on the
operating level. In addition, for the "Comfort" profile the setpoints can be manually corrected
temporarily.
The menu levels define the setpoints for the individual profiles and further settings for operation.
Operating level
- Increase setpoint temperature: press sensor button ‰ƞ.
- Reduce setpoint temperature: press sensor button ‰Ɵ.
- Increase fan stage: press sensor button şƞ.
- Reduce fan stage: press sensor button şƟ.
- Set automatic fan stage: press sensor button ƪ.
- Switchover to Eco profile: press sensor button Ɣ.
- Switchover to Standby profile: press sensor button Ɠ.
i The profiles Eco and Standby are exited by pressing again the sensor buttons Ɣ or Ɠ.
The follow-on condition depends on whether or not the presence of persons was reported
to the controller.
Operating in the menu
o Increase value: press sensor button ‰ƞ.
o Reduce value: press sensor button ‰Ɵ.
o Select previous menu item: press şƞ sensor button.
o Select next menu item: press şƟ sensor button.
o Exit menu without saving: press sensor button ƪ (ŏ)
o Save settings and exit menu: press °C/°F sensor button (Ŏ)
Open menu level 1
Only for heating and cooling mode with manual switchover. In systems that are intended solely
for heating or cooling menu level 1 is not available.
o Press the sensor buttons ĸƟ and Ɣ between 2 and 4 seconds.
Menu level 1:
- Switchover heating mode/cooling mode
Open menu level 2
o Press the sensor buttons ĸƟ and Ɣ longer than 5 seconds.
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