System air TControl EASY 3S Manual

Controller for Fan Coil Units
Installation and maintenance manual
TControl EASY 3S

INSTALLATION INSTRUCTION
NOTICE D’INSTALLATION
INSTALLATIONSHANDBUCH
ISTRUZIONI INSTALLAZIONE
INSTRUCCIONES DE INSTALACIÓN
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English
2TControl EASY 3S
CONTENTS
1. APPLICATION.................................................................................................................................................................................... 3
2. TECHNICAL DATA .............................................................................................................................................................................. 3
3. RESPONSIBILITY AND RESIDUAL RISKS ............................................................................................................................................ 4
4. SECURITY ADVICE – CAUTION ........................................................................................................................................................... 4
5. REMARKS TO ROOM SENSORS ......................................................................................................................................................... 5
6. SURFACE AND FLUSH MOUNTING..................................................................................................................................................... 5
7. DIMENSIONS .................................................................................................................................................................................... 5
8. MOUNTING....................................................................................................................................................................................... 5
9. MAINTENANCE INSTRUCTIONS......................................................................................................................................................... 6
10. TERMINAL CONNECTION PLAN....................................................................................................................................................... 6
11. CONFIGURATION ........................................................................................................................................................................... 6
12. COMMISSIONING............................................................................................................................................................................ 8
13. HANDLING...................................................................................................................................................................................... 8
14. FAN STAGE SELECTION ................................................................................................................................................................... 8

English
3TControl EASY 3S
1. APPLICATION
The fan coil room thermostat has been designed for individual control of temperature in commercial, industrial
and residential buildings. It is tailored for two-pipe and four-pipe fan coil with ON/OFF electric valves. It
supports AC fan motor*. With its ush mounted modern design the device combines digital technology with
a large LCD display and additional buttons, which enable the single room controller to be used intuitively.
*The controller can be used with EC fan motor if there is an ECOSPEED card.
2. TECHNICAL DATA
Measuring values temperature
Output switch contact 5x contact NO (2x heating & cooling, 3x fan stages), 250 V ~ max. load 3 A
fan stages switchover pause 0,5 s
Power supply 230 V
Power consumption max. 0,9 W
Measuring range temp +1..+50 °C
Accuracy temperature ±1 K (typ. a 21 °C)
Inputs input for change-over sensor NTC10k, (optional)
Display LCD 35,5x48,5 mm, white background lighting
Enclosure ABS, pure white, scratch resistant acrylic glass
Protection IP20 according to EN 60529
Cable entry rear entry
Connection electrical terminal block, max. 1,5 mm²
Ambient condition -10..+50 °C, max. 85% rH non-condensing
Mounting Wall flush mounted
Mounting Wall flush mounted

English
4TControl EASY 3S
3. RESPONSIBILITY AND RESIDUAL RISKS
4. SECURITY ADVICE – CAUTION
We accept no responsibility for loss/damage due to:
²Installation/uses other than those expressly specied and, in particular, failure to comply with the
safety requirements of established standards and/or instructions specied in this document.
²Use of the Fan control that do not provide adequate protection against electric shocks, water or dust
when assembled use of the Fan control allowing access to dangerous parts without having to use
tools.
²Tampering with and/or modication of the product.
²Installation/use on panels which are not compliant with current standards and regulations
The installation and assembly of electrical equipment should only be performed by authorized
personnel.
The product should only be used for the intended application. Unauthorised modications
are prohibited! The product must not be used in relation with any equipment that in case of
a failure may threaten, directly or indirectly, human health or life or result in danger to human
beings, animals or assets. Ensure all power is disconnected before installing. Do not connect
to live/operating equipment.
This controller is not compatible with electrical heaters.
Notes on Disposal
As a component of a large-scale xed installation, Systemair products are intended to be
used permanently as part of a building or a structure at a pre-dened and dedicated location,
hence the Waste Electrical and Electronic Act (WEEE) is not applicable. However, most of
the products may contain valuable materials that should be recycled and not disposed of as
domestic waste. Please note the relevant regulations for local disposal.
CAUTION! Risk of electric shock due to live components within the enclosure, especially
devices with mains voltage supply (usually between 90..265 V).
Please comply with :
²Local laws, health & safety regulations, technical standards and regulations
²Condition of the device at the time of installation, to ensure safe installation
²This data sheet and installation manual

English
5TControl EASY 3S
5. REMARKS TO ROOM SENSORS
Location and Accuracy of Room Sensors
The room sensor should be mounted in a suitable location for measuring accurate room temperature. The
accuracy of the temperature measurement also depends directly on the temperature dynamics of the wall.
It is important, that the back plate is completely ush to the wall so that there is sufcient circulation of
air through the vents in the cover, otherwise, deviations in temperature measurement will occur due to
uncontrolled air circulation. The temperature sensor should not be covered by furniture or other objects.
Mounting next to doors (due to draught) or windows (due to colder outside wall) should be avoided.
6. SURFACE AND FLUSH MOUNTING
The measuring result is inuenced by the thermal characteristics of the wall. A solid concrete wall responds
to thermal uctuations within a room in a much slower than a light-weight structure wall. Room temperature
sensors installed in ush-mounted boxes have a longer response time to thermal variations. In extreme
cases they detect the radiant heat of the wall even if the air temperature in the room is lower for example.
7. DIMENSIONS
Dimensions in mm
8. MOUNTING
1. Make sure the power is disconnected
2. Insert the screwdriver in the plastic teeth of thermostat;
clockwise rotation of the screwdriver will separate front
cover from base plate. Please follow the wiring diagram
to connect the wires.
3. Fix the thermostat base plate to the wall through the
four screw holes with distance between axes of 60 mm.
4. Fasten base plate and front cover. Do not press the panel
in order to protect LCD.

English
Display fan speed
Down/Decrease key
Up/increase key
Sensor error
Set temperature
R
oom temperature
Lock button
Display value
Cooling
Ventilation
Heating
On/off key
Mode key
Fan speed key
Valve open
Fahrenheit
Setting parameter
Celsius
6TControl EASY 3S
9. MAINTENANCE INSTRUCTIONS
It is recommended to clean the touch surface with a damp cloth. Please, do not use aggressive cleaning
agents and do not allow water to run behind the surface.
10. TERMINAL CONNECTION PLAN
11. CONFIGURATION

English
Parameter No.
Value decrease key
Value increase key
Parameter value
Changer No, key
Exit setting key
7TControl EASY 3S
Low
Medium
High
Auto
Display fan speed:
No. Name of parameter Parameter definition Default
1 Temp. correction Range ±10 °C 0
2 Key-lock
0 – unlocked
1 - lock on/off
2 - lock Mode
3 - lock fan speed
4 - lock temp setting
5 - lock all the keystrokes
0
3 not used
4 Temp. upper limit Range: +1..+50 °C 30 °C
5 Temp. lower limit Range: +1..+50 °C 16 °C
6 LCD backlight 0 - without backlight
1 - with backlight 1
7 Fan operation setting 0 – Independent
1 - Dependent 0
8 Fan coil selective 2 – 2-pipe system
4 – 4-pipe system 2
All parameters are stored within an EEPROM ensuring no data loss if the Thermostat is powered off.
Hysteresis: 1 K + 1 minute switching delay

English
Fan High
Fan Med
Fan Low
Fan Stage
8TControl EASY 3S
12. COMMISSIONING
²By pressing the “ ” and “ ” key at the same time for more than 3 s, the units °C or °F can be
selected. Temperature display range is 0..+50 °C or +32..+99 °F. Factory default is °C.
²Select 2-pipe or 4-pipe systems (Parameter 8). In both modes the control sequences, Cooling –
Ventilating – Heating can be selected.
² Using Parameter No.1. the temperature offset can be adjusted. This feature should be used if the
temperature at the mounting place of the Room Thermostat is not accurate compared to the average
room temperature.
²Key lock selection (Parameter 2), LCD backlight (Parameter 6) and set point ranges (Parameter
4 and 5) can be parameterized. Under Fan operation “INDEPENDENT” (parameter 7) the fan runs
permanently according to the selected or automatic selected fan stage; under Fan operation
“DEPENDENT” the fan is tuned off (cyclically) when the valve is closed. If the valve is open, the fan
will run according to the selected or automatic selected fan stage. When the fan stages are changed,
the fan remains in a no-current switcheover pause (0.5 s).
13. HANDLING
²By pressing “ ” or “ ” button the room temperature set point can be adjusted between +16..+30 °C
(+60..+86 °F). See also parameter 4 and 5.
²If an external temperature sensor is used in 2-pipe system to measure the temperature in the pipes,
no change of mode is possible via MODE button. The system recognizes automatically, whether
current mode is cooling or heating. When temperature is <=19 °C cooling is active, when the
temperature is >=30 °C heating is active. The other mode is not available. A time delay between
cooling/heating mode changes is implemented to ensure safe operation and ensures eco-friendly
operation.
²If no external sensor is used, the functions (heating-ventilation-cooling) can be selected using MODE
button. In heating mode the valve will be opened, if temperature is below set point, in cooling mode
it will be opened, if the temperature is above set point.
²When using a 4-pipe system no sensor is necessary. Both functions (heating and cooling) are
available. The function can be selected via MODE button.
²If the NTC room temperature sensor is out of range, thermostat will switch off the fan and close the
valve, fault code “E01” will be shown.
14. FAN STAGE SELECTION
For cooling or heating modes Low Med Hi Auto
For ventilation mode Low Med Hi
Auto mode:

IOM T-CONTROL EASY 01-N-2GB Part number : J581805GB Supersedes : IOM T-CONTROL EASY 01-N-1GB
As part of our ongoing product improvement programme, our products are subject to change without prior notice. Non contractual photos.
Systemair AC SAS
Route de Verneuil
27570 Tillières-sur-Avre
FRANCE
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