ECC room thermostat
Electronic room thermostat for heating and heating/cooling with display
TRA 410, TRA 421
P100015830 C
Operating instructions
2/19
P100015830 C
TRA 410, 421
TRA 410, 421
3/19
P100015830 C
Contents
1 Safety instructions 4
1.1 Meaning of the safety instructions 4
2 General information 5
2.1 Introduction 5
2.2 Liability limitation 5
2.3 Intended use 5
3 Operation for the first time 6
3.1 Setting the setpoint temperature 6
3.2 Setting the time and the date 6
3.3 Setting the weekly switching programme 6
4 Functions – settings – parameterisation 8
5 Connection diagrams 9
6 Dimension drawing 10
7 Overview of display 10
8 Description of operation 12
8.1 Description of the operating modes 13
8.2 Description of changing setpoints 14
8.3 Description of service parameters for TRA 421 16
9 Troubleshooting 18
10 Disposal 18
11 Cleaning 18
4/19
P100015830 C
TRA 410, 421
Safety instructions
1 Safety instructions
(
Please follow the information in the operating instructions.
Failure to observe these instructions can cause functional impairments or even
damage the device.
(
Failure to observe the instructions:
SAUTER will not accept any liability for damage caused by the failure to observe
these instructions.
!
The device may only be opened by authorised, qualified personnel when it is disconnected from the power supply.
Only use the device when it is in a technically perfect condition.
Adhere to the ambient conditions specified in the fitting instructions.
1.1 Meaning of the safety instructions
Compulsory note
!
A compulsory note contains important information that must be observed. Non-adherence can have serious consequences.
!
General note
(
A general note contains information that helps you to better understand the topic
described.
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Reference note
¦
This note contains a reference to an external website.
è
This note contains a reference to one or more documents with further information
on this product.
TRA 410, 421
5/19
P100015830 C
General information
2 General information
2.1 Introduction
These operating instructions provide important information about handling
the electronic room thermostat. To allow safe working, all the specified safety
information and activity instructions must be adhered to.
The operating instructions must be read carefully before starting any work.
They are a part of the product and the company operating the system must keep
them where they can be accessed at all times.
2.2 Liability limitation
All of the data and information in these instructions has been assembled based
on the applicable standards and directives, the current state of the technology
and our many years of know how and experience.
The manufacturer will accept no liability for damage resulting from:
• Failure to observe the safety instructions
• Failure to observe the operating instructions
• Improper use
• Use of untrained staff
• Unauthorised modifications
• Technical changes
In all other cases, the obligations agreed to in the supply contract apply, as well
as the General Standard Terms and Conditions and delivery conditions of the
manufacturer, and the statutory regulations in force at the time the contract was
signed.
2.3 Intended use
The room thermostat controls, directly or via a control distributor, the connected
thermal actuators for unit valves in a unitary control system. Depending on the
model, it is suitable for 24 V or 230 V components.
Depending on the model, the device is suitable for
• fixed installation
• recording the actual temperature (room temperature)
• setting the setpoint temperature
• controlling the actual temperature by activating positioning actuators in
heating or heating/cooling mode in an assigned area
• connecting an external sensor
All other uses, changes and modifications are expressly forbidden and lead to
risks for which SAUTER is not liable.
6/19
P100015830 C
TRA 410, 421
Operation for the first time
3 Operation for the rst time
3.1 Setting the setpoint temperature
The setpoint temperature is set by turning the rotary knob to the left or the right.
1. Turn the rotary knob to the left.
 The temperature is decreased.
or
1. Turn the rotary knob to the right.
 The temperature is increased.
Fig.1 Front view of TRT 410, 421
3.2 Setting the time and the date
1. Press the rotary knob once
2. Turn the rotary knob once to the right until the setting level
3. Press the knob again to go to the setpoints
4. Turn until you reach the display
5. Press  hours display flashes - enter setting
6. Press  minutes display flashes - enter setting
7. Press  days display flashes - select day
8. Press  the time and day that you set flash - setting was successful
9. Turn knob until is displayed, then press knob
3.3 Setting the weekly switching programme
1. Press the rotary knob once
2. Turn the rotary knob once to the right until the setting level
3. Press the knob again to go to the setpoints
4. Turn until you reach the display
5. To confirm  press rotary knob.
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