Thermonet Underfloor Heating - Wiring Diagrams

STOCK CODE 5260

THERMONET UNDERFLOOR HEATING STANDARD THERMOSTAT KIT

STANDARD THERMOSTAT KIT

1.0 KIT CONTENTS

2.3 THERMOSTAT MOUNTING/WIRING

Parts included: 1 x Thermostat 1 x Wall plate 2 x Mounting box screws 1 x Floor temperature sensor with 3m flex 1 x Floor temperature sensor conduit kit

Step 1 Unscrew and remove the thermostat front panel. Note: The screw is captive and cannot be removed completely.

Parts you will need: 1 x Single gang flush mounting box For solid walls use - Thermonet stock no. 5275 For drylined walls use - Thermonet stock no. 5276

ALL ELECTRICAL WORK MUST CONFORM TO CURRENT IEE WIRING REGULATIONS AND BE CHECKED OR CARRIED OUT BY A QUALIFIED ELECTRICIAN. ELECTRICAL INSTALLATION WORK IN DWELLINGS IS SUBJECT TO THE BUILDING REGULATIONS PART P.

2.0 INSTALLATION READ THIS DOCUMENT IN CONJUNCTION WITH THE THERMONET INSTALLATION GUIDE. This thermostat is designed to control Thermonet electrical floor heating. The resistive load must not exceed 3680 Watts (NI) @ 230 VAC (16 AMPS).

Step 2 Check to make sure the base of the thermostat covers the single gang wall mounting box entirely. If not, clip the wall plate onto the back of the thermostat body.

For areas exceeding 16 AMPS (Approximately 24m2 Thermonet or 19m2 Thermonet Extra) that require control by a single thermostat, a snubber/contactor must be used. Snubbers/contactors are available from your Thermonet distributor.

TURN OFF THE ELECTRICAL SUPPLY AT THE POWER DISTRIBUTION UNIT TO AVOID RISK OF ELECTRICAL SHOCK.

THE FLOOR TEMPERATURE SENSOR MUST BE PLACED IN CONDUIT TO FACILITATE REMOVAL, IF NECESSARY.

2.1 THERMOSTAT LOCATION The thermostat should be located within the room to be heated, except for bathrooms and wet areas where it should be fitted to an internal wall in an adjacent room. For easy operation, choose a location about 1.3m above the floor. Should a remote location for the thermostat be necessary the system wiring can be extended up to 50m from the installation. Suitable extension wire is available from your Thermonet distributor. 2.2 FLOOR TEMPERATURE SENSOR LOCATION/INSTALLATION Always install the floor temperature sensor in conduit. After laying out the heatmat(s), select a suitable position for the floor sensor.

THE FLOOR TEMPERATURE SENSOR WIRE MUST NOT CROSS OR TOUCH ANY YELLOW HEATMAT WIRES.

Step 3 Connect the 230 VAC supply wires to the thermostat. 230 VAC

WIRE COLOUR

CONNECT TO

LIVE

RED OR BROWN

TERMINAL L1

NEUTRAL

BLUE OR BLACK

TERMINAL N5

EARTH

GREEN & YELLOW OR GREEN

MOUNTING BOX EARTH TERMINAL OR SEPARATE CONNECTOR BLOCK

Sealing cap/ Sensor head

Do not cross or touch yellow wires

To Thermostat

Example of floor sensor location Mark the position of the floor sensor on the floor. Remove the surrounding heatmat(s) and cut a channel in the floor to accommodate the conduit. This will maintain the overall finished floor level. Ensure that the floor is clean before installation of heatmat(s). Using a multimeter, measure the resistance between the two connection wires in the floor temperature sensor flex. For temperatures between 20ºC and 30ºC the resistance should measure between 8K Ohm and 12K Ohm. Check the resistance before and after installation.

Supply/load connections Floor temperature sensor not shown connected.

STANDARD THERMOSTAT KIT

Step 4 Connect each of the heatmat(s) load wires to the thermostat. THERMONET WIRE REFERENCE

CONNECT TO

BROWN

TERMINAL L2

BLUE

TERMINAL N4

EARTH BRAID

TWIST EARTH BRAIDS TOGETHER, SLEEVE AND CONNECT TO MOUNTING BOX EARTH TERMINAL OR SEPARATE CONNECTOR BLOCK

For installations of three or more heatmats, connect the connection wires to a junction box and take single feeds to terminals L2 and N4. Step 5 Connect the floor sensor wires to terminal 6 and terminal 7 (the floor sensor wires are not polarity sensitive). Step 6 The thermostat has been pre-set with a minimum and maximum temperature set point. SET POINT

PRE-SET TEMPERATURE

MINIMUM

5ºC

MAXIMUM

28ºC

The dial set point on the front of the thermostat will not override the pre-set temperature values. Step 7 Push excess wire back into the wall mounting box and secure the thermostat body to the mounting box using the two screws provided. Step 8 Clip the top of the thermostat front panel to the thermostat body and secure with the captive screw. 3.0 OPERATION Use the temperature set point dial on the front of the thermostat to select the desired floor set point temperature. Use the ON/OFF slide button on the front of the thermostat to switch the system ON or OFF. When the floor temperature is less than the dial set point temperature and the slide button is in the ON position, the red heating indicator will be displayed until the floor reaches the set point temperature. In normal use the thermostat is left ON and will automatically maintain the selected floor set point temperature. For holidays or night time economy, use the temperature set point dial to select a lower temperature. Important: When the thermostat is switched OFF, frost protection (indicated by d symbol on temperature set point dial) will not be in operation.

4.0 TECHNICAL ADVICE If you have any questions regarding installation of your thermostat, please contact your distributor or call the Thermonet Advice Line 091 1163 2003 5.0 SPECIFICATION Model: Supply: Load: Power: Approval: Setting range: Maximum default setting: Minimum default setting: Storage: Enclosure class:

5260 230 VAC 50/60Hz 16A maximum (resistive only) 3680W (NI) @ 230 VAC CE 5-28ºC 28ºC 5ºC -20ºC to 50ºC IP20

ALWAYS CONNECT MULTIPLE HEATMATS IN PARALLEL. ALL CONNECTION WIRES MUST RETURN TO THE THERMOSTAT OR A COMMON TERMINATION POINT.

NEVER CUT THE YELLOW HEATING WIRE. HEATING WIRE MUST NEVER BE SHORTENED OR LENGTHENED.

6.0 WARRANTY This product is warranted against material defects and workmanship in normal use for a period of two years from the date of the original purchase from an authorised distributor. During this period, Thermonet will repair or replace with a new or equivalent quality model at Thermonet’s discretion, any product proven defective in normal use. This warranty excludes any cost of removal, installation, accidental damage and transportation. In no event shall Thermonet be liable for consequential or incidental damages resulting from the installation of this product. The defective product and original sales receipt must be returned to the selling distributor or shipped prepaid and insured to: Thermonet Systems UK, Adseal House, Cray Road, SIDCUP DA14 5DP.

ALWAYS FOLLOW THE FLOOR FINISH MANUFACTURER’S GUIDELINES FOR ELECTRICAL UNDERFLOOR HEATING.

TSTKA4/05

THERMONET SYSTEMS (UK) ADVICE LINE 091 1163 2003

STOCK CODE 5265

THERMONET UNDERFLOOR HEATING PROGRAMMABLE THERMOSTAT KIT

7 DAY PROGRAMMBLE THERMOSTAT KIT

1.0 KIT CONTENTS

2.3 THERMOSTAT MOUNTING/WIRING

Parts included: 1 x Thermostat 1 x Wall plate 2 x Mounting box screws 1 x Floor temperature sensor with 3m flex 1 x Floor temperature sensor conduit kit

Step 1 Unscrew and remove the thermostat front panel. Note: The screw is captive and cannot be removed completely.

Parts you will need: 1 x Single gang flush mounting box For solid walls use - Thermonet stock no. 5275 For drylined walls use - Thermonet stock no. 5276


2.0 INSTALLATION READ THIS DOCUMENT IN CONJUNCTION WITH THE THERMONET INSTALLATION GUIDE. This thermostat is designed to control Thermonet electrical floor heating. The resistive load must not exceed 3680 Watts (NI) @ 230 VAC (16 AMPS).

Step 2 Check to make sure the base of the thermostat covers the single gang wall mounting box entirely. If not, clip the wall plate onto the back of the thermostat body.

For areas exceeding 16 AMPS (Approximately 24m2 Thermonet or 19m2 Thermonet Extra) that require control by a single thermostat, a snubber/contactor must be used. Snubbers/contactors are available from your Thermonet distributor.


THE FLOOR TEMPERATURE SENSOR MUST BE PLACED IN CONDUIT TO FACILITATE REMOVAL, IF NECESSARY.

2.1 THERMOSTAT LOCATION THE FLOOR TEMPERATURE SENSOR WIRE MUST NOT CROSS OR TOUCH ANY YELLOW HEATMAT WIRES.

The thermostat should be located within the room to be heated, except for bathrooms and wet areas where it should be fitted to an internal wall in an adjacent room. For easy operation, choose a location about 1.3m above the floor. Should a remote location for the thermostat be necessary the system wiring can be extended up to 50m from the installation. Suitable extension wire is available from your Thermonet distributor.

Step 3 Connect the 230 VAC supply wires to the thermostat. 230 VAC

WIRE COLOUR

CONNECT TO

2.2 FLOOR TEMPERATURE SENSOR LOCATION/INSTALLATION

LIVE

RED OR BROWN

TERMINAL L1

Always install the floor temperature sensor in conduit. After laying out the heatmat(s), select a suitable position for the floor sensor.

NEUTRAL

BLUE OR BLACK

TERMINAL N5

EARTH

GREEN & YELLOW OR GREEN

MOUNTING BOX EARTH TERMINAL OR SEPARATE CONNECTOR BLOCK

Sealing cap/ Sensor head

Do not cross or touch yellow wires

To Thermostat

Example of floor sensor location Mark the position of the floor sensor on the floor. Remove the surrounding heatmat(s) and cut a channel in the floor to accommodate the conduit. This will maintain the overall finished floor level. Ensure that the floor is clean before installation of heatmat(s). Using a multimeter, measure the resistance between the two connection wires in the floor temperature sensor flex. For temperatures between 20ºC and 30ºC the resistance should measure between 8K Ohm and 12K Ohm. Check the resistance before and after installation.

Supply/load connections Floor temperature sensor not shown connected.


Step 4 Connect each of the heatmat(s) load wires to the thermostat. THERMONET WIRE REFERENCE

CONNECT TO

BROWN

TERMINAL L2

BLUE

TERMINAL N4

EARTH BRAID

TWIST EARTH BRAIDS TOGETHER, SLEEVE AND CONNECT TO MOUNTING BOX EARTH TERMINAL OR SEPARATE CONNECTOR BLOCK

For installations of three or more heatmats, connect the connection wires to a junction box and take single feeds to terminals L2 and N4. Step 5 Connect the floor sensor wires to terminal 6 and terminal 7. (The floor sensor wires are not polarity sensitive.) Step 6 Configuration of options. The thermostat has two option settings controlled by microswitches on the rear of the front panel. Early start function. This enables the thermostat to calculate the optimum start time to obtain the right temperature at the set time. The factory setting for this feature of ‘OFF’. To enable this function set the microswitch 1 to the up position.

2.4 POWER UP When power is applied for the first time, the display will show all icons before showing the time 0.00, the floor temperature and the manual mode icon . Other information might show up on the display if the installation is defective or does not comply with the instructions. The message LO or HI will appear on the display if the temperature is below 0ºC (32ºF), above 60ºC (140ºF) or if the temperature sensor is defective. Also if the LO message is displayed, the heating indicator will be present on the display and the relay will be closed (current going to load).

TO SET THE DAY

SETTING TEMPERATURE

TIME AND DAY OF THE WEEK SETTING

TO SET THE HOUR

COMFORT

TO SET THE MINUTES

ECONOMY

TO SET THE PROGRAMMING

HOLIDAY

TO ERASE A PROGRAM UP AND DOWN TO ADJUST THE TEMPERATURE

TO SELECT THE OPERATING MODE HEATING INDICATOR

PROGRAM NUMBER

PRE-PROGRAMMED SETTINGS

Temperature display ºC/ºF.

2.5 OPERATING MODES

The temperature readout on the display can be either ºC or ºF. The factory setting for this feature is ºC. To change to ºF set the microswitch 2 to the up position. Note: If changed to ºF the comfort and economy settings will need to be reconfigured.

The thermostat has three operating modes.

Step 7 Push excess wire back into the wall mounting box and secure the thermostat body to the mounting box using the two screws provided. Step 8 Clip the top of the thermostat front panel to the thermostat body and secure with the captive screw.

Manual This mode allows you to maintain a constant floor temperature. Automatic This mode allows you to program your own heating schedule for each day of the week. Holiday This mode sets the thermostat to your specified holiday temperature. Regardless of manual or automatic mode, this setting will maintain a constant floor temperature.


NEVER CUT THE YELLOW HEATING WIRE. HEATING WIRE MUST NEVER BE SHORTENED OR LENGTHENED.


2.6 PROGRAMMING TEMPERATURES

Step 2 Programming your daily schedule.

The Thermostat has three pre-set temperature settings.

a) Press the Pgm button to access the programming mode.

SETTING

SYMBOL

PRE-SET TEMPERATURE

COMFORT

28ºC

ECONOMY

18ºC

HOLIDAY

10ºC

a) Comfort temperature. Select the desired temperature using the M L buttons. Press and hold button to confirm. Release button when icon is displayed. b) Economy temperature. Select the desired temperature using the M L buttons. Press and hold button to confirm. Release button when icon is displayed. c) Holiday temperature. Select the desired temperature using the M L buttons. Press and hold button to confirm. Release button when icon is displayed. d) Press Mode button to exit. Approximately 2 seconds after selecting a temperature, the display will change to show floor temperature. It is generally accepted that the maximum surface temperature of the floor finish should be between 27-29ºC.

b) Use the Day button to select the day to be programmed. If the program is the same for each day, press and hold the Day button to select all days of the week. If the program is the same for most of the week press and hold the Day button to select all days of the week and proceed to step 3c. Afterwards return to step 3b and change those days which have a different schedule. c) Use the Pgm button to select program 1, 2, 3 or 4. For each program use the Hour and Min buttons to set the time. d) To erase a program use the Day and Pgm button to select, then press the Clear button to erase. When – – : – – is displayed the program is inactive. e) When programming is complete, press the Mode button to exit. Programming example Comfort setting Mon-Fri 6.15 to 8.30 18.00 to 22.30 Sat-Sun 7.30 to 23.00 1. Press the Pgm button to access the programming mode. 2. Press and hold the Day button to select days of the week.

2.7 PROGRAMMING MANUAL MODE Step 1 Activate manual mode. Press the Mode button to select the manual icon .

3. Use the Hour and Min buttons to set the time 6.15 (program 1 ).

Step 2 Temperature setting. Press the M L buttons to select the temperature or press button to select the comfort temperature or press the button to select the economy temperature.

4. Use the Pgm button to select program 2. Use the Hour and Min buttons to set the time 8.30 (program 2 ).

2.8 PROGRAMMING AUTOMATIC MODE

6. To modify the Saturday schedule, use the Day button to select the SA icon.

The automatic mode allows up to four setting changes for each day of the week. TIME

PROGRAM

SETTING

WAKE-UP TIME

1

COMFORT

LEAVE HOME

2

ECONOMY

RETURN HOME

3

COMFORT

BED TIME

4

ECONOMY

5. Repeat step 4 to enter program 3 4 22.30.

7. Use Pgm button to select program 1 and Min buttons to set the time 7.30.

. Use the Hour

8. Use the Pgm button to select program 2 Clear to erase.

and press

9. Use the Pgm button to select program 3 Clear to erase.

and press

10. Use the Pgm button to select program 4 . Use the Hour and Min buttons to select the time 23.00.

Step 1 Programming the time and day.

11.Repeat steps 6-10 for Sunday SU.

a) Set the day using the Day button.

12.Press the Mode button to exit.

b) Set the time using the Hour and Min buttons.

18.00 and program

ALWAYS FOLLOW THE FLOOR FINISH MANUFACTURER’S GUIDELINES FOR ELECTRICAL UNDERFLOOR HEATING.


2.9 TEMPORARY TEMPERATURE BYPASS The temperature setting can be temporarily adjusted when in Automatic mode. Use the M L buttons to set the new temperature, or the or buttons to select the comfort or economy settings. The temperature will be maintained until the beginning of the next programmed schedule. To return to the programmed settings, press the Mode button twice. 2.10 MEMORY BACK-UP In the event of a power failure, an internal circuit will maintain the programming and time settings for two hours. This back-up circuit does not require batteries. 3.0 TECHNICAL ADVICE If you have any questions regarding installation of your thermostat, please contact your distributor or call the Thermonet Advice Line 091 1163 2003 4.0 SPECIFICATION Model: Supply: Load: Power: Approval: Setting range: Comfort default setting: Economy default setting: Holiday default setting: Storage: Enclosure class: Clock protection:

5265 230 VAC 50/60Hz 16A maximum (resistive only) 3680W (NI) @ 230 VAC CE 5-28ºC 28ºC 18ºC 10ºC -20ºC to 50ºC IP20 2 hours

5.0 WARRANTY This product is warranted against material defects and workmanship in normal use for a period of two years from the date of the original purchase from an authorised distributor. During this period, Thermonet will repair or replace with a new or equivalent quality model at Thermonet’s discretion, any product proven defective in normal use. This warranty excludes any cost of removal, installation, accidental damage and transportation. In no event shall Thermonet be liable for consequential or incidental damages resulting from the installation of this product. The defective product and original sales receipt must be returned to the selling distributor or shipped prepaid and insured to: Thermonet Systems UK, Adseal House, Cray Road, SIDCUP DA14 5DP.

TPTSKA4/05


STOCK CODE 5270

THERMONET UNDERFLOOR HEATING THERMONET CONNECTION KIT

THERMONET CONNECTION KIT

1.0 KIT CONTENTS

Step 1 Strip back the brown or blue insulation by 30mm.

Parts include: 2 x Red heatshrink splice connector 1 x Length heatshrink sleeve

Step 2 Fold back the earth braid to reveal the centrecore insulation. Twist the earth braiding together. Step 3 Strip back the centrecore insulation by 10mm. Twist the centrecore wires together.

Equipment you will need: - Crimp tool - Hot air gun - Wire strippers/cutters - Multimeter - Insulation tester

Step 4 Prepare both connection wires to be jointed, as above and slide the length of heat shrink sleeving over one of the wires. Step 5 Insert the centrecore into one end of a red splice connector and crimp using the correct section of the crimp tool. Insert the other centrecore into the opposite end of the connector and crimp as before.

2.0 CONNECTION WIRE JOINT

1

2

3

4

Step 6 Insert the earth braid into one end of a red splice connector and crimp using the correct section of the crimp tool. Insert the other earth braid into the opposite end of the connector and crimp as before. Step 7 Using a hot air gun, shrink the red splice connector insulation. Position the length of heat shrink sleeving centrally over the joint and shrink to seal.

1 Brown or Blue insulation 2 Earth braid 3 Centrecore insulation 4 Centrecore

Step 8 Using a multimeter, check the loop resistance to ensure continuity of the centrecore and of the earth braid.

Extra connection wire is available by the metre through your Thermonet distributor.

Step 9 Using an insulation tester, check the insulation between the centrecore and the earth braid. Remember to disconnect the thermostat and any other electronic controls on the circuit, before using the insulation tester.

It is important that the wire and surrounding area are clean and kept free of dust during the connection process.

Step 10 Mark the location of the joint on the heatmat layout drawing in the Customer Installation File.

Cross section of connection wire

Step 11 When tests are satisfactorily completed, proceed with installation in accordance with the Thermonet Installation Guide.

BLUE CONNECTION WIRE

STOCK NO 5268

BROWN CONNECTION WIRE

STOCK NO 5269





THERMONET CONNECTION KIT

3.0 HEATING ELEMENT REPAIR 1

4.0 TECHNICAL ADVICE 2

3

4

1 Yellow heat resistant insulation 2 Earth braid 3 Teflon insulation 4 Multistrand heating wire Cross section of heating element The yellow heating element can be repaired at any stage of installation and after completion of floor finishing. It is important that the wire and surrounding floor area are clean and kept free of dust during the repair process. Step 1 Strip back the yellow insulation by 30mm. Step 2 Fold back the earth braid to reveal the Teflon insulation. Twist the earth braiding together. Step 3 Strip back the Teflon insulation by 10mm. Twist the multistrand heating wire together. Step 4 Prepare both the heating elements to be jointed as above and slide the length of heat shrink sleeving over one of the wires. Step 5 Insert the heating wire into one end of a red splice connector and crimp using the correct section of the crimp tool. Insert the other heating wire into the opposite end of the connector and crimp as before. Step 6 Insert the earth braid into one end of a red splice connector and crimp using the correct section of the crimp tool. Insert the other earth braid into the opposite end of the connector and crimp as before. Step 7 Using a hot air gun, shrink the red splice connector insulation. Position the length of heat shrink sleeving centrally over the joint and shrink to seal. Step 8 Using a multimeter, check the loop resistance to ensure continuity of the centrecore and of the earth braid. Step 9 Using an insulation tester, check the insulation between the centrecore and the earth braid. Remember to disconnect the thermostat and any other electronic controls on the circuit, before using the insulation tester. Step 10 Mark the location of the repair on the heatmat layout drawing. Record the new centrecore/centrecore resistance on the copy Warranty Application. Documents can be found in the Customer Installation File. Step 11 When tests are satisfactorily completed, proceed with installation in accordance with the Thermonet Installation Guide.

If you have any questions regarding this product, please contact your distributor or call the Thermonet Advice Line 091 1163 2003.

TCKA4/05


STOCK CODE 5279 / 5280

THERMONET UNDERFLOOR HEATING CONTACTOR INSTALLATION DIAGRAM

LOAD CALCULATION / CONTROL RATING / THERMOSTAT LOCATION

FROM FUSED SUPPLY

N HEATMAT EARTH SCREEN

THERMOSTAT 7 6 N 5 N 4 F.P. 3 L 2 L 1

L 1

A1 CONTACTOR

2

EARTH

SNUBBER

SENSOR SENSOR SUPPLY LOAD SPARE LOAD SUPPLY

HEATMAT

A2

LOAD CALCULATION / CONTROL RATING / THERMOSTAT LOCATION Total heatmat current draw Firstly calculate the total load. The load in watts(W) of each heatmat is shown on the heatmat factory test certificate. To find the total load, add the load of each individual heatmat together. Sum of individual heatmat loads = Total load(W) Calculate the current draw in amps(A) by dividing the total load(W) by the working voltage.

Heatmat control ratings Thermonet® heatmats must be controlled by a Thermonet® thermostat. Thermostats have a maximum current draw rating of 16.0A. If the total current draw exceeds 16.0A and the system has to be controlled by a single thermostat, a contactor/snubber must be used in addition to the thermostat. The rating of the contactor/snubber must always exceed the total current draw of the system.

Total load W = Total current draw A 230 v 25.0A CONTACTOR / SNUBBER

STOCK NO 5279

40.0A CONTACTOR / SNUBBER

STOCK NO 5280


ALL ELECTRICAL WORK MUST CONFORM TO CURRENT IEE WIRING REGULATIONS AND BE CHECKED OR CARRIED OUT BY A QUALIFIED ELECTRICIAN THE ELECTRICAL SUPPLY TO THE INSTALLATION MUST ALWAYS BE PROTECTED BY A RESIDUAL CURRENT DEVICE (RCD). THE TRIPPING CURRENT RATING OF THE RCD MUST NOT EXCEED 30MA