nVent RAYCHEM Green Leaf Programmable Thermostat Instruction Manual

nVent RAYCHEM Green Leaf Programmable Thermostat

Description

The Green Leaf Programmable Thermostat is designed for electrical floor heating. It allows users to set a desired temperature for their floors and comes equipped with a display screen to show current temperature, time and day of the week, and four programmable events.

Mounting and Installation

To mount the thermostat, follow these steps:

1. Turn off the electrical power supply to the heating system.
2. Remove the cover of the in-wall box.
3. Screw the metallic support frame to the in-wall box.
4. Connect the electrical power supply, sensor, and cold lead of the electrical floor heating system to the Green Leaf thermostat according to the electrical diagram.
5. If heating cables exceed 13A for constant wattage or 10A for self-regulating cables, use a contactor with an integrated suppression device.
6. For the earth connection of the floor heating, use a separate earth terminal connection block.
7. Click the Green Leaf thermostat into the metallic support frame.

Using the Thermostat

The Green Leaf thermostat can be used in manual on/off or timer program mode. When using the manual on/off program mode, follow these instructions:

1. When switching on the thermostat for the first time (touching the Green Leaf button for 2 seconds), it will start in MANUAL ON/OFF programme using the floor sensing mode as a standard (see INSTALLER MENU to change the sensing mode).
2. To show the set point temperature, touch either the up or down button. It will blink for 5 seconds.
3. To adjust the temperature, touch the up or down button accordingly.
4. To switch from Manual ON/OFF to Timer Programme, touch the program button once.
5. To switch off the thermostat, touch the Green Leaf button for 2 seconds.

ATTENTION

This appliance can be used by children aged from 8 years and above and persons with reduced physical, sensory or mental capabilities or lack of experience and knowledge if they have been given supervision or instruction concerning use of the appliance in a safe way and understand the hazards involved. Children shall not play with the appliance. Cleaning and user maintenance shall not be made by children without supervision.

The nVent RAYCHEM Green Leaf Thermostat is a Programmable Thermostat designed for Electrical Floor Heating. The thermostat is designed to control your Electrical Floor Heating in order to give you the best possible comfort and the lowest possible energy usage.

The Thermostat can work in 3 different temperature sensing modes:

• Floor Sensing mode

• Room Sensing mode

• Room Sensing mode with floor temperature limiter
  The Thermostat has 2 programs to choose from:

• Manual ON/OFF (Constant Single temperature)

• Timer program (4 timer events/day)
  To change from one program to the other, just touch the intelligent leaf button

MOUNTING AND INSTALLATION

Mounting the Thermostat

The installation of the Green Leaf must be performed by a qualified installer. The Green Leaf is a thermostat with protection class IP21, make sure to comply with all local regulations when installing the thermostat. Green Leaf is intended for flush mounting in a wall box. It should be positioned approximately 1.5 meters above the floor, protected from direct sunlight and draughts. All electrical conduits passing into the wall box that contain cables must also be sealed to protect the thermostat against draughts, e.g. with a piece of insulation in the conduit outlet.

• Step 1: Switch off the power supply

• Step 2 : Detach the metallic support from the Thermostat using a screwdriver

• Step 3 : Screw the metallic support frame to the in-wall box

• Step 4 : Install the floor sensor (mandatory for floor sensing mode or room sensing mode with floor temperature limiter). The floor sensor should be installed in a separate flexible conduit all the way to the end, covering the end of the sensor, for easy replacement and to avoid possible signal disturbance on the sensor. For best control performance, position the floor sensor between two heating cables as close as possible to the top floor surface.
  Do not position the floor sensor tip closer than 3 cm to the heating cable.
  The floor sensor cable can be extended up to 100 m with a separate standard installation cable 2 x 1.5 mm2 (230VAC).

• Step 5 : Connect the electrical power supply, the sensor and the cold lead of the electrical floor heating system to the Green Leaf according to the electrical diagram. If you connect heating cables exceeding 13A for constant wattage or 10A for self-regulating cables you must use a contactor with an integrated suppression device.
  For the earth connection of the floor heating, you must use a separate earth terminal connection block.

• Step 6 : Click the Green Leaf into the metallic support frame.

• Step 7: Switch on the power again

Product specific information
The thermostat is compatible with nVent RAYCHEM QuickNet, T2Blue, T2Green, T2Black and T2Red heating solutions.

T2Red

Self-regulating heating cables have an inrush current when the floor is cold. In order to guarantee the life time of the thermostat, the maximum load of the self-regulating application in nominal conditions is limited to 10A.
A 13A self-regulating load will reduce the life time of the relay contacts and the installation will not be covered by the Total Care Warranty.

USING THE THERMOSTAT

The Display

Display in manual on/off programme
The following icons are visible in the Manual ON/OFF:

Active sensor display

• Floor sensing mode
• Room Sensing mode
• Room Sensing mode with Floor temperature limiter

Heating display
The heating display is flashing when the heating is on.

Temperature
The temperature on the display depends on the selected sensing mode.

• Floor sensing mode => Actual floor temperature on the display
• Room sensing mode => Actual room temperature on the display
• Room sensing with floor temperature limiter mode => Actual room temperature on the display
  Remark: When touching on thejust touch the intelligent leaf“ ” or “ ”button, the set point temperature appears on the display blinking for 5 seconds

Installer Menu
Touch the M button for 5 seconds to enter the Installer Menu

Display in timer programme
The following icons are visible in the Timer Programme:

Time and day

The actual day is displayed on the screen with the 3 letters (MON-TUE-WED-THU- FRI-SAT-SUN).
The time can be set in 24H or 12AM/PM mode (see INSTALLER MENU).

Event display

The 4 events are displayed with the symbols:

• Event 1
• Event 2
• Event 3
• Event 4

The manual on/off programme

When switching on the thermostat for the first time (touching the Green Leaf button for 2 seconds), it will start in MANUAL ON/ OFF programme using the floor sensing mode as a standard (see INSTALLER MENU to change the sensing mode). You will see the following screen

Touch “ ” or “ ” to show the set point temperature. It will blink for 5 seconds.

1. Touch “ ” to decrease the temperature.
2. Touch “ ” to decrease the temperature.

To switch from Manual ON/OFF to Timer Programme, touch the “ ” button once.
To switch off the thermostat, touch the “ ” button for 2 seconds

The timer programme

The Green Leaf can be programmed with 4 events per day. Different temperatures can be maintained for each event of the day. The days can be programmed independently or per cluster of days.
The default Timer Programme is shown on the graph below. You can easily adapt the program to your needs (see PROGRAMMING THE TIMER PROGRAMME

• Touch the “ ” button to set the clock and day of the week
• Touch the “ ” button for 3 seconds to program the timer programme (see page 14 for more details).
• Touch the “ M ” button for 5 seconds to enter the Installer Menu
• Touch the “ ” button to switch from Timer to Manual ON/OFF mode
• Touch the “ ” button for 2 seconds to put the Thermostat into OFF (standby) mode
• Touch “ ” or “ ” to show the set point temperature. It will blink for 5 seconds
  • Touch “ ” to decrease the temperature.
  • Touch “ ” to decrease the temperature.
    Remark: The adapted temperature is valid until the next timer Event.

SETTING THE CLOCK

• Touch the “ ” button to set the clock and day of the week
• Touch“ ” or “ ”to change the hours
• Touch the “ ” button to validate
• Touch “ ” or “ ”to change the minutes
• Touch the “ ” button to validate
• Touch “ ” or “ ”to change the day of the week
• Touch the “ ” button to validate

Remark : In case of battery drainage after long period of power failure, you might have to re-programme the clock.

PROGRAMMING THE TIMER PROGRAMME

• Touch the “ ” button for 3 seconds to program the Timer Programme
• Touch“ ” or “ ”to choose the day (or the sequence of days) you want to program
• Touch the “ ” button to validate

Day Sequences are

For Event 1

• Touch “ ” or “ ”to change hours of Event 1
• Touch the “ ” button to validate
• Touch“ ” or “ ”to change the minutes of Event 1
• Touch the “ ” button to validate
• Touch“ ” or “ ”to change the temperature for Event 1
• Touch the “ ” button to validate

For Event 2, 3 and 4

• Repeat the actions for Event 1 for Events 2, 3 and 4

Touch the “ ” button, at any time during the programming, to save your changes and return to the Timer Programme.
If needed, you can repeat the complete procedure to program other days or sequences of days.

INSTALLER MENU

Touch the “ ” button for 5 seconds to enter the installer Menu

Room sensing mode with floor temperature limiter

| Floor Sensing mode
2| 12 vs 24 hours display| 12 / 24| 24
3| Motion sensor. When getting close to the thermostat (5cm range)

the display lights up automatically

| ON / OFF| ON
4| Offset for floor sensor calibration| Offset of 0 .. 10°C| 4°C
5| Room sensor calibration| Measured sensor temperature +/- 5°C| Measured sensor temperature
6| Minimum temperature

set point for the Floor Sensor

| Floor sensing mode: 5 .. 15°C Room sensing mode: OFF

Room sensing mode with floor temperature limiter: OFF

| 5°C OFF OFF
7| Maximum temperature

set point for the Floor Sensor

| Floor sensing mode: Minimum temperature set point floor sensor (installer menu 6)

+5°C .. 35°C

Room sensing mode: OFF

Room sensing mode with floor temperature limiter: 10 .. 35°C

| 35°C

OFF 27°C

8| Minimum temperature

set point for the Room Sensor

| Floor sensing mode: OFF Room sensing mode: 5 .. 15°C

Room sensing mode with floor temperature limiter: 5 .. 15°C

| OFF 5°C

5°C

9| Maximum temperature

set point for the Room Sensor

| Floor sensing mode: OFF

Room sensing mode: Minimum temperature set point room sensor (installer menu 8)

+5°C .. 40°C

Room sensing mode with floor temperature limiter: Minimum temperature set point room sensor (installer menu 8)

+5°C .. 40°C

| OFF 40°C

40°C

10| Adjustable hysteresis| 0.5 .. 2.0°C| 1.0°C
11| Open window function| ON/OFF| ON

Floor sensor calibration

The temperature of the floor surface can differ from the temperature measured by the floor sensor due to the floor construction, the floor type and the position of the floor sensor. In order to calibrate your thermostat to this difference you can use the floor sensor calibration OFFSET in installer Menu 4.
After the temperature on the floor is stabilized, place a thermometer on the floor surface in order to sense the real temperature on the surface (Tsurface). Read the floor sensor temperature (Tsensor) on the thermostat and adjust the OFFSET accordingly to the formula

Room sensor calibration

If the value measured by the room sensor in the thermostat differs from the real room temperature, it is possible to calibrate the room sensor using the installer Menu 5.
After the temperature in the room is stabilized, place a thermometer close to the wall in order to sense the real room temperature. If this value differs from the one shown by the thermostat, adjust Menu 5 using the “ ” or the “ ” until the thermostat shows the same value as the reference thermometer.

TROUBLESHOOTING

In the event of damage or malfunction of one of the temperature sensors, the heating output cuts off (fail safe) and an error code is displayed.

• The floor sensor can be replaced by a new. In the event of malfunction of the room sensor, the entire thermostat must be replaced (Error 3 or Error 4).
• Error 5 occurs if the thermostat is set in Room Sensing Mode and the floor sensor is installed.
• To resolve the error change the sensing mode in Floor sensing or Room sensing with floor temperature limiter. Otherwise, remove the floor sensor to work in room sensing mode. The floor sensor has got the following temperature/resistance values

TECHNICAL SPECIFICATION

Timer programme

Protection class| IP 21
Terminals| Max. 2,5 mm²
Floor sensor with 3 m cable| NTC, 10KΩ / 25°C
Maximum length of floor sensor Cable| 100 m, 2 x 1,5 mm² (230VAC cable type)
 |
Approvals|
 |
Type of action| 1.B. (39)
Control pollution degree| 2 (49)
Rated impulse voltage| 4kV (75)
Temperature for the ball pressure test| 125°C (77)
SELV limits realized| 22 VDC (86)*

• According to the EN 60730-1 table 1|  

Dimensions

België / Belgique
Tel +32 16 21 35 02
Fax +32 16 21 36 04
salesbelux@nVent.com
Bulgaria
Tel +359 5686 6886
Fax +359 5686 6886
salesee@nVent.com
Česká Republica
Tel +420 602 232 969
czechinfo@nVent.com
Danmark
Tel +45 70 11 04 00
salesdk@nVent.com
Deutschland
Tel 0800 1818205
Fax 0800 1818204
salesde@nVent.com
España
Tel +34 911 59 30 60
Fax +34 900 98 32 64
ntm-sales-es@nVent.com
France
Tél 0800 906045
Fax 0800 906003
salesfr@nVent.com
Hrvatska
Tel +385 1 605 01 88
Fax +385 1 605 01 88
salesee@nVent.com
Italia
Tel +39 02 577 61 51
Fax +39 02 577 61 55 28
salesit@nVent.com
Lietuva/Latvija/Eesti
Tel +370 5 2136633
Fax +370 5 2330084
info.baltic@nVent.com
Magyarország
Tel +36 1 253 4617
Fax +36 1 253 7618
saleshu@nVent.com
Nederland
Tel 0800 0224978
Fax 0800 0224993
salesnl@nVent.com
Norge
Tel +47 66 81 79 90
salesno@nVent.com
Österreich
Tel 0800 29 74 10
Fax 0800 29 74 09
salesat@nVent.com
Polska
Tel +48 22 331 29 50
Fax +48 22 331 29 51
salespl@nVent.com
Republic of Kazakhstan
Tel +7 495 926 1885
Fax +7 495 926 18 86
saleskz@nVent.com
Россия
Тел +7 495 926 18 85
Факс +7 495 926 18 86
salesru@nVent.com
Serbia and Montenegro
Tel +381 230 401 770
Fax +381 230 401 770
salesee@nVent.com
Schweiz / Suisse
Tel +41 (41) 766 30 80
Fax +41 (41) 766 30 81
infoBaar@nVent.com
Suomi
Puh 0800 11 67 99
salesfi@nVent.com
Sverige
Tel +46 31 335 58 00
salesse@nVent.com
Türkiye
Tel +90 545 284 09 05
Fax +32 16 21 36 04
salesse@nVent.com
United Kingdom
Tel 0800 969 013
Fax 0800 968 624
salesthermalUK@nVent.com

©2021 nVent. All nVent marks and logos are owned or licensed by nVent Services GmbH or its affiliates. All other trademarks are the property of their respective owners. nVent reserves the right to change specifications without notice. RAYCHEM-IM-EU0637-GreenLeafEU-EN-2110
nVent.com/RAYCHEM

References

• Electrical Heat Tracing | Heat Tracing | nVent RAYCHEM

Read User Manual Online (PDF format)

Read User Manual Online (PDF format)  >>

Download This Manual (PDF format)

Download this manual  >>