Uponor ETN4 Ecoflex Supra Standard Thermostat Instruction Manual

ETN4 Eco flex Supra Standard Thermostat
Instruction Manual

Upon or Eco flex Supra Standard thermostat ETN4
Installation and operation manual

Upon or Eco flex Supra Standard thermostat ETN4

The Upon or Eco flex Supra Standard thermostat ETN4 is used to control the constant resistant cable of the Upon or Eco flex Supra Standard pipes.
ETN4 is a universal purpose thermostat, which can be used in several applications. In the following basic instructions are given for the use of ETN4 in combination with Eco flex Supra Standard pipes.
1.1 Kit contents
Figure 1

1.2 Installation instructions
Figure 2
Fix the base of the housing to a suitable place with 4 screws. The hole distance should be 198 mm horizontally and 121 mm vertically.
1.3 Connection
Figure 2, 3 and 5

Description for figure 5
Connect the supply cable, heating cable and the sensor cable.
For detailed instructions, see the installation manual for Upon or Eco flex Supra Standard cable set S1, or figure 5 in this document.
1.4 Start-up and use
Figure 4

The thermostat has a big digital display for easy reading of temperature. The programmable control range of the thermostat is -19,5 … +70 °C. With Eco flex Supra Standard pipes, the recommended control range is 0 … +20 °C.

1. Use the power switch (A) to turn the thermostat OFF (position “0”) or ON (position “I”).
   The relay will deactivate, when the switch is in position “0”, which will also save all settings.

2. Use the three function buttons (B), (C) and (D) below the display to select parameter and set desired value.
   • Select parameter with button (D)
   • Set the desired value with buttons (B) [down] and (C) [up] • Whenever a button is pressed, the backlighting will come on and stay lit for 30 seconds after a button is last pressed.

3. To select parameter, push button (D) for 3 seconds. The display will show SCA → Hi → 40.
   The text “SCA” will be displayed first for 1 second, thereafter “Hi” and finally “40” will show on the display.
   After this, the desired settings can be set with the arrow buttons.
   To move to the next parameter, push button (D) again.

1.5 Parameter settings
Parameter descriptions

from the one displayed in the thermostat, the  thermostat can be adjusted to offset the difference.
Application| The application sets the thermostat function by selecting required control type.
The different control types are described in a separate sub-section below.
Control method| Either PWM or ON/OFF control can be selected as control method. ON/OFF is the traditional differential control (e.g. 0,3 °C) for other tasks.
PWM is an advanced control method which calculates the most effective and economical way to heat homes and other buildings.
Differential temperature| The differential temperature can be set when using ON/OFF control.
The higher the differential temperature is, the lower is the number of relay operations.
Frost protection| The lowest temperature for frost protection can be defined when the function is activated via an external signal.
Example: The setpoint is 25 °C.
Frost protection = 8 °C means temperature setting = 8 °C.
Limit function| If the application “Lapp” is set to limit “Li”, the lowest temperature at which heating is turned on can be defined in the limit function.
Max. temperature| Maximum temperature is the highest temperature to which the thermostat can be set.
Max. temperature limit| The maximum temperature limit allows the highest permissible floor temperature to be set for wooden and other floor types, when the control type has been set to room sensor with floor limit “AF”.
Measured floor temperature| Measured floor temperature displays the actual floor temperature when a floor sensor is connected.
Measured room temperature| Measured room temperature displays the actual room
temperature.
Min. temperature| Minimum temperature is the lowest temperature to which the thermostat can be set.
Min. temperature limit| The minimum temperature limit allows the lowest permissible floor temperature to be set for tiled and other  floor types, when the control type has been set to room sensor with floor limit “AF”.
Night setback/ energy-saving
function| The night setback/energy-saving function can be used to define the number of degrees the temperature setting  shall be reduced. The function is controlled via an external signal.
A minus sign “–” must precede the night setback setting.
Example: The setpoint is 25 °C.
Energy-saving function = –5 °C means temperature setting = 20 °C.
Energy-saving function = +3 °C means temperature setting = 28 °C.
PWM cycle time| The function allows cycle time to be set when using PWM control.
Recommended time is at least 20 minutes.
Relay function| When the thermostat used for heating purposes, the relay should be in the position normally open “NO” When  the thermostat used for cooling purposes, the relay should be turned to position normally closed “NC”
Scale| Choose between degrees Celsius and a numerical scale.
If the numerical scale is selected, the temperature is set on a scale from 0,0 to 10,0; where 0,0 corresponds to  minimum temperature (SCA → Lo) and 10,0 corresponds to maximum temperature (SCA → Hi).
Software version| The thermostat displays the software version.
Standard| The thermostat complies with EN 50559 (VDE 0705-559) for electrical floor heating.
This function is not applicable to other heating applications.
Temperature reading| The temperature reading defines which temperature is to be shown on the start display: the setpoint “SP” or the actual, measured temperature.

Application control types

Overview

| Available functions
---|---
Thermo- stat with connect ed sensor| APp → F floor| APp → A room| APp → Li limit| APp → A F room/ floor limit| APp → C regulator
Floor| √| | √| | √
Room| | √| | | √
Room and floor| √| √| √ *)| √| √
Without any sensor connected| | | | | √

*) No room sensor in use

Descriptions

connected floor sensor.
Room| A| The thermostat controls only the room temperature.
Limit| Li| Limit is an on/off function, in which the required limit is set in Limit low (”Li” → ”Lo”) after  selecting the “Li” option under “APp”.
Room/limit| AF| The thermostat controls the room temperature while respecting min. and max. limits for the floor
temperature; requires a connected floor sensor.
Regulator| C| The thermostat is used as a simple regulator without any sensor in use. The setting is defined in
percent (%).

Most important settings for Supra Standard

Parameter| Display text| Factory settings value| Supra Standard setting value
---|---|---|---
Max. temperature| SCA → Hi → 40| 40 °C| Usually 20 °C
Min. temperature| SCA → Lo → 0| 0 °C|
Max. temperature limit| Li → Hi → 28| 28 °C| Desired max. temperature to maintain (<20 °C recommended)
Min. temperature limit| Li → Lo → 15| 15 °C| Desired min. temperature to maintain (>0 °C recommended)
Application| APp → F / A / Li / AF / C| F| F (control using external temperature sensor)
Temperature hysteresis| Dif → 0,3| 0,3 °C| Desired hysteresis for temperature control accuracy

These are the most important parameters for controlling the heating cable of the Eco flex Supra Standard pipes.
Complete list of settings
The complete list of parameters for controlling the heating cable of the Eco flex Supra Standard pipes.

Parameter| Display text| Factory settings value| Supra Standard setting value
---|---|---|---
Max. temperature| SCA → Hi → 70| 70 °C (0,0/+70 °C)| 20 °C
Min. temperature| SCA → Lo → –19,5| –19,5 °C| 0 °C
| | (0/+10 °C)|
Max. temperature limit| Li → Hi → 28| 28 °C|
FLOOR 1)| | (–19,5/+70 °C + OFF)|
Min. temperature limit| Li → Lo → 15| 15 °C|
FLOOR 1)| | (–19,5/+70 °C + OFF)|
Min. temperature limit| Li → Lo → –19,5| –19,5 °C| Not in use, when App = F
Limit function 2)| | (–19,5/+70 °C + OFF)|
Frost protection| dEF → 8,0| 8,0 °C| 0 °C
| | (0/+10 °C)|
Night setback 3)| nSb → –5,0| –5 °C (–19,5/+30 °C)| 0 °C
Measured floor temperature| FLo → 24,0 (example) 4)| | Only display, no setting
Measured room temperature| ro → 21,5 (example) 4)| | Only display, no setting
Application| APp → F / A / Li / AF / C
→ F (Floor sensor)
→ A (Room sensor)
→ Li (Limit function)
→ AF (Room sensor with floor
temperature limits)
→ C (Regulator)| F: Floor| F
Temperature hysteresis| Dif → 0,3| 0,3 °C| 0,3 °C
Scale| LCD → C| C = Celsius
(nub = numerical 0-100 %)| C
Temperature reading in start display| dF → SP| SP = Setpoint| tP
| | (tP = actual temperature)|
Adjust offset| Adj → 24,5 (example)| Actual temperature (+/–10 °C)| No action
Control method| PWM → On| ON| OFF
| | (OFF)|
PWM cycle time 5)| Cyc → 20| 20 minutes (10-60 minutes)| Not in use when PWM = OFF
Differential temperature 6)| Dif → 0,4| 0,4 °C (0,3/10 °C)| 0,3 °C
Relay function| reel → no| no = normally open
(nc = normally closed)| No
EN 50559| Plie → 0| 0 min. (0-20 minutes)| 0
Software version| SU → x.xx| |

Note
Selecting Regulator (C) under Application will disconnect the floor and room sensors, and the heating control will use a scale of 0-10, corresponding to 0-100 % of full
power.

1. Only available if the Application setting is “AF”
2. Only available if the Application setting is “Li”
3. Only available with external timer
4. With no or disconnected sensor, “– –” is shown on the display
5. Only available when the control method PWM is in mode “ON”
6. Only available when the control method PWM is in mode “OFF”

1.6 Troubleshooting
Error codes
If a fault occurs, the thermostat will display one of the following error codes:

Replace the sensor/sensor cable
To continue to operate the system without sensor, set the control type to “Regulator” under “Application”: APp → C regulator
E5| Internal overheating
Thermostat shuts off heating| Check the installations
Check that the heating cables are not overloaded or that ambient temperature is  excessive When the internal temperature drops, the thermostat automatically reactivates

Factory reset
The factory reset allows the factory settings to be restored, and all personal settings will be deleted from the thermostat.
Follow the below steps to reset the thermostat:

1. Press and hold the centermost button (D) for 10 seconds
2. The display is switched off and then on again
3. The application is shown on the display: “APp → F”, followed by the temperature setting

1.7 Technical specifications

20 °C: 14,7 kΩ
Marking| CE, VDE

*) EN 60730-1 Automatic electrical controls for household and similar use — Part 1: General requirements
**) EN 60730-2-9 Automatic electrical controls for household and similar use — Part 2-9: Particular requirements for temperature sensing controls

Usable in all Europe
Declaration of conformity:
We hereby declare under our own responsibility that products dealt with by these instructions are in conformity with the legislations in force below.

1.8 Legislations
The Upon or Eco flex Supra Standard thermostat ETN4 is in conformity with the following directives of the European Parliament:

• Low Voltage Directive 2014/35/EU
  Harmonized standards applicable under Directive 2014/35/EU for Low Voltage (LVD)

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

• RoHS Directive 2011/65/EU
  Harmonized standards applicable under Directive 2011/65/EU (RoHS) for restriction of the use of hazardous substances in electrical and electronic equipment (EEE)

• WEEE Directive
  Harmonized standards applicable under the WEEE Directive for waste of electrical and electronic equipment (EEE)

  www.uponor.com
Upon or GmbH
Industriestraße 56,
D-97437 Hasfarm, Germany
1122086 v1_01_2022_INT
Production: Upon or/ELO
Upon or 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.

References

• PEX Products for Residential & Commercial Applications | Uponor

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