PLEASE EXPLAIN
Heated driveway?

Commercial snow melting. (E.g. TOYOTA + ELEKTRA).

HYPOCAUST. Made in GREECE and ROME

ONDOL - The Korean invention

American Legend: Architect Frank Lloyd Wright

From STONE COLD to NICE WARM floors in just 2 hours?

New Kitchen Project. (Part 1)

New Kitchen Project. (Part 2)

Radiant heating in one day?

From cold slab floor to comfort and beauty.

How to connect UCCG-9991 programmable thermostat for radiant floor heating?

How to connect MTC-2991 manual thermostat for radiant floor heating?

How to choose the in-floor radiant heat ELEKTRA mat?

Many components of the Great Real Estate. (Part 1).

Many components of the Great Real Estate. (Part 2).

How to connect more than 1 mat?

The problem on the roof

Installing radiant floor heating in just one afternoon.

Cathedral ceilings effect & Medieval Hypocaustum (floor heating)

STEP-BY-STEP INSTALLATION




How to install and connect your MTC electronic thermostat



MTC electronic thermostat w/floor temperature sensor is simple but energy efficient and very easy to use...


MTC 2991 Microline electronic thermostat for radiant electric floor heating.

 

The copy of the istallation manual is availabe for download and printing:

 

Installing Electronic Manual Thermostat w/Floor Sensor

 

  • MTC is single voltage 120V. Power supply Voltage and mat's Voltage have to be the same. 120V only.

 

  • 120V power wires are marked L (Line or Hot) and N(Neutral). 3rd wire is ground - either bare copper or green.

 

  • Whether connecting one or more mats always observe maximum load allowed for the line and the thermostat!. Max. load is 16 A. That's 1800W @ 120V. If the line allows for connecting more load then the contactor has to be used. A need for contactor will generally apply to 200 or more s.f. heated floor coverage

 

  • Our thermostats Contain no Mercury  - a highly poisonous substance present in lethal quantities in many older thermostat models and many still on the market.

 

  • Indoor application only. Outdoodr snowmelting needs special controlls

ONLY ONE OF THE FOLLOWING PICTURES WILL APPLY TO YOUR PARTICULAR INSTALLATION, depending on what is being installed:


Connection of Elektra MG in-floor radiant heating mat with 2 connecting cords, 120V only:

 

When more than one mat is connected - connect color coded wires of the mats together and then to the thermostat like shown above.


Connection of Elektra MD in-floor radiant heating mat with 1 connecting cord, 120V only:

 

When more than one mat is connected - connect color coded wires of the mats together and then to the thermostat like shown above.


Don't forget floor temperature sensor! 

The sensor can be installed directly in the mud but it is better (but harder) to install it in the conduit - allowing easy replacement when sometimes in the future new thermostat models become available. 1.5"-3" away from the heating coil is best. 

 

 

Floor temperature sensing thermostat will be cycling the electricity flow to power the in-floor mat ON and OFF to keep the floor at the preset temperature, thererfore saving energy especially when compared with electrical appliances continuously drawing power. In the typical settings for the programmable thermostat with the adaptive-learning function, an average ON time is only 3-4 hrs for every 24 hrs of usage. 

Radiant electric floor heating being low Wattage and low temperature heating is considered VERY ENERGY EFFICIENT


WHEN INSTALLING THE MAT(S):

 

  • DON'T CUT THE HEATING WIRE!
  • ONLY THE FIBERGLASS MESH CAN BE CUT, NEVER THE HEATING COIL!

 

 

MAINTAIN THE DISTANCE BETWEEN HEATING COILS! 

This is NOT OK:

 

1" IS THE ABSOLUTE MININUM. 2"-3" IS BEST.


Please remember: Electricity can be deadly and wiring done incorrectly can kill and start deadly and destructive fires even when "just replacing one small receptacle". 

YOU ARE DEALING WITH LINE VOLTAGE, not low voltage! 

NEVER EVER attempt to work or even touch the inside of the electrical components without being 100% sure that the power is disconnected!

If you are not an electrcian and if you have the slightest doubt about your wiring ability, please contact a licensed electrician and/or repairman before doing any diagnosis, repairs or installations. The products shown here are deemed SAFE and sound by various testing authorities but the wiring process can only be SAFE when done with safety precautions. Please read manuals and/or ask pros when not sure. Most of the simple installations shown here can be done by yourself or you can have someone qualified do it for you and THEN have the electrician check it and connect it to power.    

  


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