Vector TRA-F22 A Series User manual

TRA-F22x-A
Doc: 70-00-0958A V1.0, 20221102 © Vector Controls GmbH, Switzerland Page 1-34
Subject to change without notice www.vectorcontrols.com
VECTOR
TRA-F22x-A
Fan coil controller with Modbus RTU
Document sections
Chapter
Page
General Description
1
2
Technical Specifications
2
4
Operation
3
6
Setting up the controller
4
12
Configuration (parameter options)
5
13
Runtime Data
6
31
Additional Information
7
33

TRA-F22x-A
GENERAL DESCRIPTION
Doc: 70-00-0958A V1.0, 20221102 © Vector Controls GmbH, Switzerland Page 2-34
Subject to change without notice www.vectorcontrols.com
VECTOR
1General Description
The TRA-F22x-A is a communicating electronic fan coil controller that controls the room temperature.
It supports motorized valves in 2-pipe and 4-pipe fan coil units (heating or cooling). There is an analog or digital
fan available. The digital fan supports 1- or 3 fan speeds, whereas the analog fan runs continuously variable.
Additional inputs can be used for external temperature sensor, room occupancy (motion) detection and more.
The controller offers the operating modes Comfort, Economy and Protection.
The TRA-F221-A includes a Modbus RTU interface and can easily be integrated into a building automation system.
Typical application includes:
•Fan coil systems
- 2-pipe fan coil (cooling or heating on/off valve)
- 2-pipe fan coil (cooling or heating modulating valve)
- 2-pipe fan coil with 3-position valve (cooling or heating valve)
- 2-pipe fan coil and electric heater
- 4-pipe fan coil (cooling and heating on/off valve)
- 4-pipe fan coil (cooling and heating modulating valve)
•Floor heating systems (on/off, modulating or 3-position valve)
•Chilled/Heated ceilings or chilled beams systems (on/off, modulating or 3-position valve)
1.1 Features
•LCD display with backlight
•Room temperature control via built-in temperature sensor
•2 configurable inputs temperature or digital
•2 analog outputs for modulating valve control or analog fan
•3 digital outputs for 1- or 3-speed fan control or digital valves (on/off or 3-position valve)
•Comfort, Economy and Protection operating mode
•Display of current room temperature or temperature set point in °C or °F
•Display of outdoor temperature received from Modbus master
•Manual or automatic heating / cooling changeover
•Select operating mode via operating mode button on the controller
•Minimum and maximum limitation of room temperature set point
•Floor heating temperature limitation
•Key lock function
•RTU Modbus slave interface (TRA-F221 only)
•Reload default settings for commissioning and control parameters
•110…230 VAC operating voltage
•Flush mount on all 75x75x35mm wall mounting box or larger boxes
•Selection of application via parameter
•No data loos on power fail
1.2 Safety
DANGER! Safety advice
This device is for use as an operating controller. It is not a safety device. Where a device failure could endanger
human life and property, it is the responsibility of the client, installer and system designer to add additional safety
devices to prevent such a device failure. Ignoring specifications and local regulations may cause equipment
damage and endangers life and property. Tampering with the device and misapplication will void the warranty.

TRA-F22x-A
GENERAL DESCRIPTION
Doc: 70-00-0958A V1.0, 20221102 © Vector Controls GmbH, Switzerland Page 3-34
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1.3 Types and Ordering
Product Name
Product No.
Description / Type
Size / Length
Weight
Controller
TRA-F220-A
40-10-0274
Fan coil controller standalone
88 x 88 x 41 mm (3.5 x 3.5 x 1.6 inch)
168g
(5.92oz)
TRA-F221-A
40-10-0256
Fan coil controller with Modbus
88 x 88 x 41 mm (3.5 x 3.5 x 1.6 inch)
168g
(5.92oz)
Installation box (optional)
AMB-001
40-51-0009
Flush mounting installation box
80 x 80 x 40 mm (3.2 x 3.2 x 1.6 inch)
40g
(1.41oz)
AMB-005
40-51-0010
Surface mounting installation box
85 x 85 x 37 mm (3.4 x 3.4 x 1.5 inch)
46g
(1.62oz)
Passive temperature sensor with flying lead (NTC 10kΩ at 25 ºC (77 °F))
S-Tn10-2
40-200001
-
2 m (6 ft.) PVC cable
-
S-Tn10-6
40-200142
-
6 m (19 ft.) PVC cable
-
Passive temperature sensor for duct mounting (NTC 10kΩ at 25 ºC (77 °F))
SD-Tn10-12-2
40-200002
12 cm (4.7 inch) probe
2 m (6 ft.) PVC cable
-
SD-Tn10-20-2
40-200003
20 cm (7.8 inch) probe
2 m (6 ft.) PVC cable
-
SDB-Tn10-12-1
40-200124
12 cm (4.7 inch) probe
-
-
SDB-Tn10-20-1
40-200133
20 cm (7.8 inch) probe
-
-
Passive temperature sensor for contact mounting on pipes (NTC 10kΩ at 25 ºC (77 °F))
SC-Tn10-2
40-200095
-
2 m (6 ft.) PVC cable
-
SC-Tn10-6
40-200159
-
6 m (19 ft.) PVC cable
-
Passive temperature sensor for indoor mounting (NTC 10kΩ at 25 ºC (77 °F))
SRA-Tn10
40-200005
Indoor temperature sensor
88 x 88 x 21 mm
(3.5 x 3.5 x 0.8 inch)
-
Passive temperature sensor for outdoor mounting (NTC 10kΩ at 25 ºC (77 °F))
SOD-Tn10-1
40-200108
Outdoor temperature sensor
64 x 64 x 36 mm
(2.5 x 2.5 x 1.4 inch)
-
Additional sensors and accessories can be found on the Vector Controls home page www.vectorcontrols.com.

TRA-F22x-A
TECHNICAL SPECIFICATIONS
Doc: 70-00-0958A V1.0, 20221102 © Vector Controls GmbH, Switzerland Page 4-34
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VECTOR
2Technical Specifications
Power supply
Power requirements
110…250 VAC, 50/60 Hz
Power consumption
Max. 5 VA
Electrical connection
Screw terminals
Wire 0.15…2.05 mm2 (AWG 26…14)
Built-in sensor
Temperature range
Accuracy 0…50°C
0…50°C (32…122°F)
0.5°C (1°F)
Signal inputs
Digital and temperature input
Temperature range
Temperature accuracy
Selectable via parameter
-20…60°C (-4…140°F)
0.5°C (1°F) at 0…50°C (32…122°F)
1.0°C (2°F) at <0°C (<32°F), >50°C (>122°F)
Type & range of temperature sensor
NTC (Sxx-Tn10): -40…140°C (-40…284°F)
Signal outputs
Relays outputs (SPST NO)
Insulation strength
between relays and system electronics
between neighboring contacts
Electronic control type
0…250 VAC, resistive load current 5A, inductive 2A
2500V to EN 60 730-1
2500V to EN 60 730-1
2.B (micro-disconnection)
Analog outputs
Output signal
Resolution
Maximal load
0…10 VDC
10 bit, 9,7 mV
Voltage signal: ≥1kΩ
Temperature
resolution
Displayed temperature
0.1°C (0.5°F)
Set point
0.5°C (1°F)
Network
Hardware interface
Max nodes per network
Max nodes per segment
RS485 in accordance with EIA/TIA 485
247
128 (TRA-F22x-A only)
Conductor wire
Impedance
Shielded Twisted Pair (STP) cable
100 –130 Ω
Galvanic isolation
The communication circuitry is non-isolated
Network topology
According Modbus manual (Modbus over serial line)
Recommended maximum length per chain
1200 m (4000 ft.)
Modbus
Communication standard
Modbus RTU (www.modbus.org)
Default setting
38400 baud rate, even parity, 1 stop bit
Communication speed (baud rate)
2400, 4800, 9600, 19200, 38400, 57600, 115200
Modbus RTU protocol (8 data bits)
no parity –1 or 2 stop bits;
even or odd parity –1 stop bit
Environment
Operation
Climatic conditions
Temperature
Humidity
To IEC 721-3-3
class 3K5
0…50 °C (32…122 °F)
<85 % RH non-condensing
Transport & storage
Climatic conditions
Temperature
Humidity
Mechanical conditions
To IEC 721-3-2 and IEC 721-3-1
class 3K3 and class 1K3
0…50 °C (32…122 °F)
<95 % RH non-condensing
class 2M2
Standards
Safety class
II (IEC 61140)
Degree of protection
IP30 to EN 60529
General
Material
Fire proof PC+ABS plastic (UL94 class V-0)
Dimensions front part (H x W x D)
Dimensions back part (H x W x D)
88 x 88 x 16 mm (3.5 x 3.5 x 0.6 in)
67 x 61 x 25 mm (2.6 x 2.4 x 1.0 in)
Weight (including package)
250 g (8.81 oz)
2.1 Product testing and certification
Declaration of
Conformity
Information on the conformity of our products can be found on our website
www.vectorcontrols.com on the corresponding product page under "Downloads".

TRA-F22x-A
TECHNICAL SPECIFICATIONS
Doc: 70-00-0958A V1.0, 20221102 © Vector Controls GmbH, Switzerland Page 5-34
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VECTOR
2.2 Dimensions, mm (inch)
For flush mounting, a 75 x 75 x 35 mm (3.0 x 3.0 x 1,4 inch) installation box or larger must be used.
See Ordering for recommended installation boxes (chapter 1.3, page 3).
2.3 Connection diagram
For details see the TRA-F22x-A installation sheet no. 70-000957 (www.vectorcontrols.com).
The wiring for the different predefined TRA-F22x-A applications can be found in chapter 5.6.3, page 19.
A typical connection of the TRA-F22x-A is shown below:
61(2.4)
16(0.6) 25(1.0)
88(3.5)
88(3.5)

TRA-F22x-A
OPERATION
Doc: 70-00-0958A V1.0, 20221102 © Vector Controls GmbH, Switzerland Page 6-34
Subject to change without notice www.vectorcontrols.com
VECTOR
3Operation
Content of chapter
3.1 User interface ____________________________________________________________________________6
3.1.1 Button operation_______________________________________________________________________6
3.2 LCD Display _____________________________________________________________________________7
3.2.1 Operating modes ______________________________________________________________________7
3.2.2 Controlling modes______________________________________________________________________7
3.2.3 Large and small digits___________________________________________________________________8
3.2.4 Alarm messages _______________________________________________________________________8
3.2.5 Error messages________________________________________________________________________8
3.3 Temperature control _______________________________________________________________________8
3.4 Controller operation _______________________________________________________________________9
3.4.1 Operating mode _______________________________________________________________________9
3.4.2 Controlling Mode_______________________________________________________________________9
3.4.3 Temperature control ___________________________________________________________________10
3.4.4 Fan speed ___________________________________________________________________________10
3.4.5 Controller start up ____________________________________________________________________10
3.4.6 Power Failure ________________________________________________________________________11
3.5 View input status (RT1/RT2)________________________________________________________________11
3.1 User interface
3.1.1 Button operation
Symbol
Function
Description
Operating mode
(Return)
Operating mode selection (Comfort Mode, Economy Mode, Protection Mode)
Menu navigation: Return to top menu
Controlling mode
(Return)
Controlling mode selection (Heating Mode, Cooling Mode, Fan Only)
Menu navigation: Return to top menu point
Long press: Switch °C/°F
Down
(-)
Adjust temperature set points and control parameters
Up
(+)
Adjust temperature set points and control parameters
Fan
(Enter, Save)
Change fan mode (auto mode or fan speed)
Menu navigation: Enter menu point
Parameter change: Save parameter
Long press: Display external input status
°C/°F

TRA-F22x-A
OPERATION
Doc: 70-00-0958A V1.0, 20221102 © Vector Controls GmbH, Switzerland Page 7-34
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VECTOR
3.2 LCD Display
1
Controlling Mode (see chapter 3.2.2)
8
Dew point alarm (see chapter 3.2.4)
2
Operating Mode (see chapter 3.2.1)
9
Fan auto mode
3
Temperature set point or parameter setting
active
10
Floor heating
4
Room temperature large digits
11
Electric heater
5
Room temperature small digits
12
Fan speed (low, medium, high)
6
Keys locked
13
Large digits (see chapter 3.2.3)
7
Alarm (see chapter 3.2.4)
14
Small digits (see chapter 3.2.3, 3.2.4, 3.2.5)
, and not used.
3.2.1 Operating modes
Display
Mode
Description
Comfort
(occupied)
The controller maintains the Comfort temperature set point defined with parameter P300.
In Comfort mode, the fan can be set to auto or manual fan speed: Low, medium or high.
Economy
(unoccupied)
Controller maintains the Economy temperature set points defined with parameter P301 and
P302.
Protection
The controller runs in standby. The system is protected against overheating and frost if
enabled with parameter P303 and P304.
3.2.2 Controlling modes
Display
Mode
Description
Heating
Heating mode activates heater for temperatures below set point.
When the heating symbol is blinking, the heating valve is turned on. Also, the electric heater
or floor heating symbols are blinking if the heating valve is turned on.
Cooling
Cooling mode activates cooling equipment for temperatures above the set point.
When the cooling symbol is blinking the cooling valve is turned on.
Fan Only
The bars between the fan symbols show the fan speed.
10
9
2
3
4
5
6
7
8
12
13
14
11
1

TRA-F22x-A
OPERATION
Doc: 70-00-0958A V1.0, 20221102 © Vector Controls GmbH, Switzerland Page 8-34
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3.2.3 Large and small digits
The large digits show the measured room temperature (default setting) or the Comfort temperature set point
(configurable via parameter P101).
The small digits are off (default setting) or show the outdoor temperature from Modbus master (configurable via
parameter P101). Also, alarms and error messages are shown on the small digits.
The room temperature and temperature set point are given in °C or °F (according to parameter P102).
3.2.4 Alarm messages
Alarm messages with alarm symbol are shown on the small digits.
Small Digits
LCD symbol
Alarm condition
ALA1
Alarm
Dew point alarm from input RT1/2 (parameter P500/P502 = 7)
Dew point
ALA2
Alarm
Overheat protection alarm (only in Protection mode)
ALA3
Alarm
Frost protection alarm (only in Protection mode)
ALA4
Alarm
Electric heater overheat alarm
3.2.5 Error messages
Error messages are shown on the small digits.
Small Digits
Error condition
Err1
Built-in temperature sensor error. Sensor is damaged (open or short circuit).
Err2
Temperature sensor RT1/RT2 error. The temperature sensor is not present. Verify wiring or
parameter configuration. -99.9 is shown on large digits.
Err3
Digital input error. RT1/2 is not fully opened or closed (resistor between 2.5kΩand 350kΩ). Verify
wiring or parameter configuration.
Err4
Configuration error: A parameter is set in an invalid combination with another parameter. Err4 and
one of the conflicting parameters are displayed alternating.
Err5
Time error: Set time and acknowledge error.
3.3 Temperature control
The thermostat measures the room temperature via built-in sensor or external room temperature sensor and maintains
the set point temperature by controlling the fan speeds and the heating and/or cooling valve (or the electric heater). The
following control outputs are available:
•on/off valve
•Modulating valve
•3-position valve (only for 2-pipe systems)
The switching differential or proportional band is 2°C for heating mode and 1°C for cooling mode (configurable via
parameters P400 and P401).
The default integral time is 5 minutes (adjustable via parameter P402 with 300 seconds as default value).

TRA-F22x-A
OPERATION
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VECTOR
3.4 Controller operation
Enable or disable of economy mode and change of set point, fan speed, controlling mode or any user operation
can be done via parameter settings (see parameter P104 to P108, default is ON and key lock disabled).
3.4.1 Operating mode
The controller operating mode can be switched between Comfort and Economy Mode with the operating mode button
( ).
The controller is switched to Protection Mode by pressing the operating mode button ( ) for 2 seconds.
Confort Mode
Economy Mode
Protection Mode
If Economy mode is disabled (see parameter P103), the controller operating mode is switched between Comfort
and Protection mode with the operating mode button ( ).
Comfort Mode
In Comfort mode, the controller measures the room temperature via built-in sensor or external room temperature sensor
and maintains the temperature of the Comfort set point by controlling the fan speeds and the heating and/or cooling valve
(or the electric heater).
Economy Mode
In Economy mode, the controller measures the room temperature via built-in sensor or external room temperature sensor
and maintains the temperature of the Economy set point by controlling the fan speeds and the heating and/or cooling
valve (or the electric heater).
The temperature of the Economy set point depends on the controller configuration (see parameter P301 and P302).
Protection Mode
In Protection mode, the system is protected against frost (default 5 °C, see parameter P304) and protected against
overheating (default OFF) (see parameter P303).
3.4.2 Controlling Mode
The controlling mode of the controller can be switched between Heating Mode, Cooling Mode and Fan Only by pressing
the controlling mode button ( ).
Heating Mode
Cooling Mode
Fan Only
Depending on the configured application (see parameter P200), cooling or heating can’t be selected as controlling
mode.
Heating Mode
In heating mode, the controller measures the room temperature via built-in sensor or external room temperature sensor
and maintains the requested temperature (according to the Operating Mode Comfort, Economy or manual setting), by
controlling the fan speeds and the heating valve (or the electric heater).
Cooling Mode
In cooling mode, the controller measures the room temperature via built-in sensor or external room temperature sensor
and maintains the requested temperature (according to the Operating Mode Comfort, Economy or manual setting), by
controlling the fan speeds and the cooling valve.

TRA-F22x-A
OPERATION
Doc: 70-00-0958A V1.0, 20221102 © Vector Controls GmbH, Switzerland Page 10-34
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Fan Only
In fan only mode, the fan speed can be set with the up ( ) or down ( ) button.
Heating or cooling is deactivated.
Fan Only (low)
Fan Only (medium)
Fan Only (high)
Note: The graphics shown are with 3-stage fan setting.
3.4.3 Temperature control
The comfort temperature set point can be adjusted in 0.5°C (1°F) steps with the up ( ) and down ( ) button and saved
ether with the operating mode button ( ), the controlling mode button ( ) or the fan button ( ). The Set symbol is
shown on the display while changing the temperature.
Confort mode (example)
Temperature up
Temperature up
If the Economy mode is active, pressing the up ( ) or down ( ) button will change the controller into the
comfort mode.
3.4.4 Fan speed
The fan speed can be changed between auto, low, medium and high fan speed by pressing the fan button ( ).
With analog fan, the fan speed can be changed between auto and 1 to 6.
Fan auto
Fan low
Fan medium
Fan high
3.4.5 Controller start up
Normal start-up
During start-up, the backlight of the display and all LCD segments are shown for two seconds. Then the software version
and revision are shown for two seconds on the small digits (format: 1r0, means version 1 revision 0).
For TRA-F221-A, the Modbus address of the controller is shown for two seconds.
Display test
Software version (example)
Modbus address (example)