Uponor T-27 Programmable Thermostat Installation And Operation Manual

Uponor T-27 Programmable Thermostat

Copyright and disclaimer

Uponor has prepared this installation and operation manual and all the content is included solely for information purposes. The contents of the manual (including graphics, logos, icons, text, and images) are copyrighted and protected by worldwide copyright laws and treaty provisions. You agree to comply with all copyright laws worldwide in your use of the manual. Modification or use of any of the contents of the manual for any other purpose is a violation of Uponor’s copyright, trademark and other proprietary rights.
The presumption for the manual is that the safety measures have been fully complied with and, further, that Uponor room control system, including any components that are part of such system, covered by the manual:

• Is selected, planned and installed and put into operation by a licensed and competent planner and installer in compliance with current (at the time of installation) installation instructions provided by Uponor as well as in compliance with all applicable building and plumbing codes and other requirements and guidelines;
• has not been (temporarily or continuously) exposed to temperatures, pressure and/or voltages that exceed the limits printed on the products or stated in any instructions supplied by Uponor;
• remain in its originally installed location and is not repaired, replaced or interfered with, without prior written consent of Uponor;
• is connected to potable water supplies or compatible plumbing, heating and/or cooling products approved or specified by Uponor;
• is not connected to or used with non-Uponor products, parts or components except for those approved or specified by Uponor; and
• does not show evidence of tampering, mishandling, insufficient maintenance, improper storage, neglect or accidental damage before installation and being put into operation.

While Uponor has made efforts to ensure that the manual is accurate, Uponor does not guarantee or warrant the accuracy of the information contained herein. Uponor reserves the right to modify the specifications and features described herein, or discontinue manufacture of the Uponor products described at any time without prior notice or obligation. The manual is provided “as is” without warranties of any kind, either expressed or implied. The information should be independently verified before using it in any manner. To the fullest extent permissible, Uponor disclaims all warranties, expressed or implied, including, but not limited to, the implied warranties of merchantability, fitness for particular purpose and non-infringement.
This disclaimer applies to, but is not limited to, the accuracy, reliability or correctness of the manual.
Under no circumstances shall Uponor be liable for any indirect, special, incidental or consequential damages or loss that result from the use of or the inability to use the materials or information in the manual, or any claim attributable to errors, omission or other inaccuracies in the manual, even if Uponor has been advised of the possibility of such damages.
This disclaimer and any provisions in the manual do not limit any statutory rights of consumers.

Preface

This installation and operation manual describes how to install and operate the components of the system.

Safety instructions

Safety measures
Conform to the following measures when installing and operating any Uponor equipment:

• Read and follow the instructions in the installation and operation manual.
• Installation must be performed by a competent person in accordance with local regulations.
• It is prohibited to make changes or modifications not specified in this manual.
• All power supplies must be switched off before starting any wiring work.
• Do not use water to clean Uponor components.
• Do not expose the Uponor components to flammable vapours or gases.
  Uponor cannot accept any responsibility for damage or breakdown that can result from ignoring these instructions.

Power
Warning!
The Uponor system uses 50 Hz, 230 V AC power. In case of an emergency, immediately disconnect the power.

Technical constraints

Caution!
To avoid interference, keep installation/data cables away from power cables of more than 50 V.

Correct disposal of this product (Waste Electrical and Electronic Equipment)

Note
Applicable in the European Union and other European countries with separate collection systems This marking shown on the product or its literature indicates that it should not be disposed of with other household waste at the end of its working life. To prevent possible harm to the environment or human health from uncontrolled waste disposal, please separate this from other types of waste and recycle it responsibly to promote the sustainable reuse of material resources.
Household users should contact either the retailer where they purchased this product, or their local government office, for details of where and how they can take this item for environmentally safe recycling.
Business users should contact their suppliers and check the terms and conditions of the purchase contract. This product should not be mixed with other commercial wastes of disposal.

Uponor Base thermostat display T-27 230V – description

Uponor Base thermostat display T-27 230V (thermostat T-27) comes with a big LCD display and capacitive keys.
The temperature is displayed in large digits for easy readability also from a distance.
The capacitive keys and the front glass make cleaning of the front of the thermostat easy.
A special electronics (triac) ensures that the thermostat is operating completely noiseless and provides highest comfort in all rooms.

Thermostat features

Main characteristics of the thermostat:

• Mounting
  • on wall
  • on standard European patress box/flush mounting box
• Noiseless switching (triac)
• Can supply up to 5 actuators with power
• Optional: an external temperature sensor can be connected to the thermostat, to measure the room or floor temperature

Software features
Main characteristics of the thermostat software:

• Temperature limitation
• Optional floor sensor connectivity
• Heating/cooling switch
• Regulation modes
  • rt: room temperature
  • rS: external sensor temperature
  • rFt: room temperature with floor temperature limitation
• Comfort/ECO modes
• Demand indication in the display
• Calibration
• Valve exercise – triggers the actuator valve to open for 2 minutes if the actuator has been closed for 3 days (72 hours)
• Factory reset

System compatibility

Note
For more detailed information, product range, and documentation please visit the Uponor website:www.uponor.com.
The thermostat T-27 is compatible with the current Uponor Base control system 230 V, the Uponor Base flexiboard controllers (X-24/ X-25/X-26/X-27), the Uponor Base X-23 wiring box as well as the Uponor Smatrix floor/remote sensor S-1XX.

Installation

Placement of thermostat

• Select an indoor wall and a position 1,3 m to 1,5 m above the floor.
• Ensure that the thermostat is away from direct sunlight.
• Ensure that the thermostat will not be heated through the wall by sunshine.
• Ensure that the thermostat is away from any source of heat, for example, television set, electronic equipment, fireplace, spotlights, and so on.
• Ensure that the thermostat is away from any source of humidity and water splashes (IP30).

Installation procedure

Warning!
The thermostat uses 230 V AC power. Never open and/or separate the front cover from the rear face of the thermostat!
Caution!
Do not push hard on the LCD screen as this may cause irreparable damage.
To install the thermostat, follow these steps:

1. Remove the back plastic cover
   Use a flat screwdriver/tool (width max. 4 mm) to remove the back plastic cover.
   
2. If necessary: cut the back part plastic
   If the thermostat is wall mounted and the cables (or some of them) are placed on the wall, cut the back part plastic.
3. Remove the breakouts
   • Wall mounting with 2 screws: Remove the 2 breakouts for the screws in the back cover.
   • Option ― wall mounting with 1 screw: Remove the breakout of the center hole in the back cover.
4. Attach the back plastic cover to the wall
   • Wall box mounted: Wall box mounted
   • Wall mounted: Attach the back cover to the wall with 1 or 2 screws.
5. Connect the thermostat
   Note
   Read the wiring diagram in the technical data chapter before making any electrical installation!
   Connect the power cables to the backside of the thermostat. The external sensor is optional.
   The cables from the actuators can be connected directly to the thermostat or to a separate connection box.
   For easier wiring, Uponor Base Flexiboard X-24/X-25/X-26/X-27 offers flexible allocation of one or more actuators to the room thermostats via a selector switch during or after installation.
6. Attach the thermostat to the back cover
   Attach the thermostat to the back cover.
   • Attach the thermostat body to the back cover by using the 2 hooks in the upper part as a hinge.
   • Gently press the thermostat down towards the clips at the bottom of the back cover until a clicking sound is heard.
   • The thermostat is attached to the back cover.
7. Remove the thermostat from the wall
   Press the clips at the bottom of the back cover with a flat screwdriver (width max. 4,0 mm) to unlock and remove the thermostat.

Operation

Activate the thermostat

Power on/reset display

The software version is displayed after power on, or after a product reset.

Current mode

After the power has been set on or the thermostat has been reset, the thermostat runs in current mode (Comfort or ECO).
Thermostat key descriptions

Press a key on the thermostat T-27 to initiate an action related to that key.
― and + keys
The keys – and + are used to

• Adjust setpoint temperature
• Move from one parameter to the next/previous one in the settings menu

O (OK) key
The key O (OK) is used to

• Display temperature measure
• Toggle between current status data, and values of available sensors connected to the thermostat
• Enter and exit the settings menu (holding the key for about 3 seconds)
• Confirm a setting

LCD display descriptions

Symbols/icons
The figure shows all possible symbols and characters that can be shown on the display:

Display text
The following table contains an overview of all the display texts with reference to the respective sections where they are described.

Display temperatures (Comfort/ECO)

Follow below instructions to display the temperatures:

1. Press the key ― or + to see the setpoint
2. Press the key O (OK) to display the room temperature and floor temperature (external sensor must be connected and the regulation set to rFt)

Temperature setpoint (Comfort/ECO)
The Comfort/ECO temperature setpoint is continuously monitored.
Follow below instructions to modify the temperature setpoints:

1. Press the key ― or + to see the current temperature setpoint
2. Press the key ― or + again to modify the setting temperature
3. Press the key O (OK) to confirm the temperature setpoint value

Settings

Note
After 1 minute of user inactivity in the settings menu, the thermostat returns automatically to the current mode.

Settings menu overview
The following table contains an overview of all the settings with reference to the respective sections where they are described.

Settings menu number	Name	Description
01	Mod	Heating/cooling modes, Page 11
02	Eco	Comfort/ECO modes, Page 11
03	Setback	ECO mode setback temperature, Page 11
04	rEG	Regulation selection, Page 12
05	FL.H	High limitation of floor temperature, Page 12
06	FL.L	Low limitation of floor temperature, Page 12
07	no	Calibration of internal room sensor, Page 12
08	no	Calibration of external room sensor, Page 13
09	dls	Lock keys and display function, Page 13
10	U1.0	Software version, Page 14
11	Min	Min. value of setting range of the setpoint
12	MAH	Max. value of setting range of the setpoint
13	HYS	Hysteresis value, Page 14
―	rES	Factory reset, Page 14

Enter the settings menu
The settings menu is accessible in both Comfort and ECO modes.
Follow below instructions to enter the settings menu:

1. Press the key O (OK) for 3 seconds
2. Scroll up and down in the menu with the keys ― and +
3. Select the desired menu by pressing the key O (OK)
4. Change the value with the keys ― and +
5. Press the key O (OK) to confirm the settings
6. Press the key O (OK) for 3 seconds to return to the current mode

Heating/cooling modes

Value	Description
Hot	Heating mode (default)
CLd	Cooling mode

Comfort/ECO modes

Values: Comfort/ECO modes

• Value: Description
• CmF: Comfort mode (default)
• Eco:ECO mode

Comfort mode

• Setpoint setting:21 °C
• Step:0,5 °C
• Temperature range:5,0 °C to 35 °C
  If no limit is defined, please see the settings menu

ECO mode

• Setpoint setting:17 °C 0
• Step:5 °C 5
• Temperature range:0 °C to 31 °C
  If no limit is defined, please see the settings menu

ECO mode setback temperature

Description Value

• Default value:4 °C
• Step:0,5 °C
• Values :0 °C to 11 °C

Calculation of ECO setpoint temperature
When the mode is changed from Comfort to ECO, the value displayed as setpoint temperature is:

• Comfort setpoint – ECO setback (in heating)
• Comfort setpoint + ECO setback (in cooling)
  When the mode is changed from ECO to Comfort, the value shown as setpoint temperature is only the setpoint.

Regulation selection

High limitation of floor temperature
Note
This value is displayed only when the setting “rEG” is set to “rFt”.

Description Value

• Default value :26 °C
• Step :0,5 °C
• Values :20 °C (or “FL.L”) to 35 °C

Low limitation of floor temperature
Note
This value is displayed and set only if the parameter “rEG” is set on “rFt”.

Description Value

• Default value :20 °C
• Step :0,5 °C
• Values :10 °C to 30 °C (or “FL.H”)

Calibration of internal room sensor
Note
This menu is only displayed if the parameter “rEG” is set with “rt” or “rFt”.
Note
If the keys ― and + are pressed simultaneously, the sensor calibration is reset. “no” is displayed

Description Value

• Default value No :(0,0 °C)
• Step :0,1 °C
• Values ;-3,0 °C to 3,0 °C

The indicator says “no” (correction value is zero) when the calibration mode is entered for the first time. This means no calibration has been performed yet.
Enter the reading on the thermometer using the keys ― and + (step of 0,1 °C).
The setting is validated with key O (OK).
Calibration of external room sensor
Note
This menu is only displayed if the parameter “rEG” is set with “rS” or “rFt”.
Note
If the keys ― and + are pressed simultaneously, the sensor calibration is reset. “no” is displayed
Description Value

• Default value No :(0,0 °C)
• Step:0,1 °C
• Values :-3,0 °C to 3,0 °C

The indicator says “no” (the correction value is zero) when the calibration mode is entered for the first time. This means no calibration has been performed yet.
Enter the reading on the thermometer using the keys ― and + (step of 0,1 °C).
The setting is validated with key O (OK).

Lock keys and display function

Value Description

• Yes : Activate the lock display and keys
• No: Deactivate the lock display and keys

The “lock keys and display function” is used to lock the thermostat keys and LCD display.

Lock keys and display
Follow the instruction below to activate the lock function of the thermostat display and keys:

1. Press the key O (OK) for 3 seconds
2. Scroll up in the menu with the key + to 09 dls
3. Select the desired menu by pressing the key O (OK)
4. Change the displayed value “no” to “Yes” with the key +
5. Press the key O (OK) to confirm the settings
6. Press the key O (OK) for 3 seconds to return to the current mode
7. The lock icon on the display starts flashing
8. After 5 minutes of inactivity, the lock icon stops flushing and the thermostat is locked

Unlock the keyboard and display
Temporary deactivation of the lock function
Follow the instruction below to temporarily deactivate the lock function of the thermostat display and keys:

1. Press the keys ― and + during 5 seconds. The lock icon starts flashing.
2. Make necessary changes in the setpoint, navigate in the settings menu and change parametres.
3. After 5 minutes of inactivity, the thermostat will automatically be locked again.

Complete deactivation of the lock function
Follow the instruction below to completely deactivate the lock function of the thermostat display and keys:

1. Press the keys ― and + during 5 seconds. The lock icon starts flashing.
2. Press the key O (OK) for 3 seconds
3. Scroll up in the menu with the key + to 09 dls
4. Select the desired menu by pressing the key O (OK)
5. Change the displayed value “Yes” to “No” with the key +
6. Press the key O (OK) to confirm the settings
7. Press the key O (OK) for 3 seconds to return to the current mode
8. The lock icon on the display disappeared and the thermostat is unlocked

Software version

Press and hold the key O (OK) to display the software version and debug information.
The software version is written: Vx.x.
Min. value of setting range of the setpoint temperature

Description Value

• Factory settings value 5,0 °C
• Values 5,0 °C to 15,0 °C

Max. value of a set range of the setpoint temperature
Description Value

• Factory settings value 30,0 °C
• Values 20,0 °C to 37,0 °C

Hysteresis value

Description Value

• Default value 0,3 °C
• Step 0,1 °C
• Values 0,2 °C to 3 °C

Follow the instruction below to set the hysteresis value:

1. Use the keys ― and + to set the hysteresis value
2. Validate the settings with the key O (OK)

Factory reset

Follow the below instructions to reset the thermostat (factory reset):

1. Hold all three keys ― and O (OK) and + for 10 seconds
2. The thermostat is reset with factoring settings

Troubleshooting

Temperature measurement errors

Note
The error can be identified in the regulation settings (04) for respective sensor mode rS/rt/rFt. The thermostat can fail to measure the temperature due to connection problems with the temperature sensor. If the selected mode is “rS”, the display shows “Err”. Change the mode to “rt” to continue working with the internal sensor or replace the external sensor.
Internal sensor (rt)

In “rt” mode, “Err” is displayed and the icon internal sensor is shown.
External sensor (rS)

In “rS” mode, “Err” is displayed and the icon external sensor is shown.
Internal and external sensors (RFT)
rFt – Internal sensor error
If the internal sensor fails, “Err” and the internal + floor sensor icons are shown.

rFt – External sensor error

If the external (floor) sensor fails, the thermostat carries on to measure the temperature with the internal sensor.

• The icon with internal and floor sensors is shown, but the floor sensor flashes.
• Press the key O (OK) and “Err” is shown instead of the floor temperature, and the floor sensor icon flashes.

Technical data

Technical specifications

Description	Description Value
IP	IP IP30 (IP: degree of inaccessibility to active parts of the product and degree of water)
Max. ambient RH (relative humidity)	60 % at 20 °C
Marking	CE, UKCA, EAC
ERP	Class I
Power supply	230 V AC, 50 Hz
Operating temperature	0 °C to +50 °C
Wired control	230 V
Storage temperature	-20 °C to +60 °C
Room temperature sensor (rt)	CTN 10 K at 25 °C
External temperature sensor	CTN 10 K at 25 °C
Thermostat color	Thermostat body RAL 9016 Transparent front glass

Declaration of conformity

Usable in all of Europe
Declaration of conformity
We hereby declare under our own responsibility that the products dealt with by these instructions satisfy all essential demands linked to the information stated in the Safety instruction booklet.
Directive 2014/35/EU (LVD)
Harmonized standards applicable under Directive 2014/35/EU for Low Voltage (LVD):

• EN 60730-1:2017 Safety ― Automatic electrical controls for household and similar use – Part 1: General requirements
• EN 60730-2-9:2013 Safety ― Automatic electrical controls for household and similar use – Part 2-9: Particular requirements for temperature sensing controls

Directive 2014/30/EU (EMC)
Harmonized standards under Directive 2014/30/EU for Electromagnetic compatibility (EMC):

• EN IEC 61000-3-2:2019 ― Electromagnetic compatibility (EMC) – Part 3-2: Limits – Limits for harmonic current emissions (equipment input current 16 A per phase)
• EN IEC 61000-3-3:2013 + AMD1:2017 ― Electromagnetic compatibility (EMC) – Part 3-3: Limits – Limitation of voltage changes, voltage fluctuations and flicker in public low-voltage supply systems, for equipment with rated current =16 A

Dimensions

Wiring diagram

Item Connection Description	Item Connection Description	Item Connection Description
A	L	Power
B	L ouT	out Actuator
C	N	Neutral
D		External sensor
E		External sensor

Menu description

Uponor GmbH
Industriestraße 56, D-97437 Hassfurt, Germany 1120503 v2_08_2021_EN
Production: Uponor/ELO
Uponor reserves the right to make changes, without prior notification, to the specification of incorporated components in line with its policy of continuous improvement and development. www.uponor.com

REFERENCE

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Uponor T-27 Programmable Thermostat Installation And Operation Manual

Uponor T-27 Programmable Thermostat Installation And Operation Manual