
How to figure out the Kilowatt Load usage for your floor.
On the new touch screen thermostats, during the startup menu, users will be prompted to enter their KW load usage. A lot of our customers may not know this for a number of reasons (they did not install or order the floor, it may be a replacement and info on the install has been lost, etc.) Here is an easy way to help out and get the KW load they need for this menu step.
Kilowatt load usage can be figured by taking the square footage of the open floor space multiplied by 15 (for tile) or 12 (for carpet and laminate). This gives us the total wattage which we then divide by 1000 to get the Kilowatts.
An example. User has a 100 square foot room that is tiled. The math would look like this: 100 sq feet X 15 watts per square foot = 1500 divided by 1000 = 1.5 KW
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Breaker and wire sizes are selected based on the total amperage of the heating system connected to a single thermostat. This information is on the heating product's installation plan, electrical plan, or UL label. Based on guidelines from the National Electrical Code: loads up to 16 Amps may utilize 12 gauge wire with a 20-Amp breaker, and loads up to 12 Amps - 14 gauge wire with a 15-Amp breaker. Local code and/or other factors may change these guidelines.
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Pressing and holding (2-3 sec) physical power/reset button will turn the unit completely OFF. Same process turns the unit back on.
(nHance and nJoin units will have the button on the front faceplate, nSpire Touch WiFi, nSpire Touch and nTrust will have the button on the right side of the faceplate.)
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Yes, the Touch and Wifi units will keep the time, there is a back up battery that will last quite a long time. No need for resetting the clock in event of power outage.
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To unlock thermostat nSpire from child lock mode: Connect the dots on the touch screen to make the letter "L"
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Floor load is provided on the installation and electrical plan for your system. Kilowatt load usage can be figured by taking the square footage of the open floor space multiplied by 15 (for tile) or 12 (for carpet and laminate). This gives us the total wattage which we then divide by 1000 to get the Kilowatts. An example. User has a 100 square foot room that is tiled. The math would look like this: 100 sq feet X 15 watts per square foot = 1500 divided by 1000 = 1.5 KW
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Floor sensor is not connected to terminals C&D, defective or damaged
Error code "E2" means defective, damaged or not connected floor sensor. Check connections or replace sensor if necessary.
Sensor resistance should be in 8-16k range and can be tested with a digital multimeter in 20k scale.
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My thermostat says "Ground Fault Detected"
Follow the on-screen instruction to reset the GFI with pressing the side button. If the unit continue to trip please contact Tech Support.
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No, supplied voltage should match the voltage of the heating product.
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Childlock is activated
To unlock draw an "L-shape": touch your finger to the top dot, slide to the lower dot and then slide to the right.
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The ground wire in the floor mat must be connected directly to the ground wire of the supply or to the house ground wire.
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The default is 10k. If this is a new installation, that is the answer. In the very rare occasion that this is replacing a 12 year old or older Energy stat (square OJ Microline from before 2010 with red and green sensor wires), choose 12k. If this is a replacement for the other 99% of the other thermostats we sold (Honeywell TH115 and TH111 thermostats), 10 k is the value.
Always start with the default 10k and change later if needed.
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All thermostats are mandated at 42" height for handicap accessibility, most private residences are mounted at 52-60".
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Yes, the floor sensor wire can be extended up to 300 feet with 18 AWG wire.
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Menu > Installer Settings > Sensor Application > Select Floor > Press checkmark to save.
See video here: https://www.warmlyyours.com/en-US/video-media/switching-modes
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Approvals | cULus listed |
Ingress Protection (IPxx) Rating | IP20 |
Warranty | Limited 3-year warranty and lifetime technical support |
Battery | 5-year battery backup of clock and calendar |
Circuits Required | 1 |
Connection | 4 wires, double pole |
Connection Method | Hardwired |
Ground Fault Protection | GFCI, Class A, 5 mA |
Maximum Current | 15A |
Maximum Load (Resistive Only) | 15A |
Maximum Power | 1800 W @ 120 V, 3120 W @ 208 V, 3600 W @ 240 V |
Supply | 120 VAC - 50/60Hz, 240 VAC - 50/60Hz |
Color | White |
Country of Origin (COO) | Malaysia |
Depth | 2in |
Installed Depth | 0.75in |
Length | 5.125″ |
Width | 3.25″ |
Display | Backlit Display |
Display Size | 2″ W x 3″ H (3.5″ Diagonal) |
Languages | English, French, Spanish |
Floor Sensor Compatibility | 10k ohms, 12k ohms and custom |
Included Floor Sensor | 10k ohms, 15' lead |
SKU | UDG4-4999-WY |
UPC (GTIN-12) | 881308051228 |
Do you need support or specifications for a specific model? Identify your model below.