Thermostat SmartStat GFCI 15mA & Sen 120V TH115-F-120GB


Part Number: TH115-F-120GB
This support page provides publications, manuals, specifications, videos, support articles, and common support questions


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Common Support Questions (16)

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Publications and Manuals (14)

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Specifications (15)

Videos (7)

Articles (13)

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Common Support Questions


The breaker and wire sizes are selected based on the total amperage of the WarmlyYours heating system connected to a single thermostat. This information is on the WarmlyYours heating system'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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When the ground fault protection mechanism trips, the TEST light is On (red). To reset the ground fault protection, switch the thermostat to Off and back to On. The TEST light will turn off.

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Warmly Yours recommends running the floor heating system in F (Floor) mode for most homes. This provides the most efficient operation of the floor heating system and the best protection for the floor covering material that has been installed.

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Press the MOD/RET button. Manual is indicated with a hand icon, and Automatic is indicated with a clock icon.

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Set the COMFORT temp of the final period of the day starting at the desired time with the corresponding ECONOMY temp ending at 12:00 pm. Then on the first period of the next day, set the COMFORT temp of the first period at 00:15 am with the corresponding ECONOMY temp ending at the desired time.

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There is no factory reset. To effect a reset, power it off and then back on at the circuit breaker.

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Solution:

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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That is the sound the thermostat makes when the relay is either opened or closed to turn on or off the power to the floor heating elements. See this article for further information.

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These are set with the configuration (dip) switches on the back of the faceplate. See the TH115 Owner's Guide for details or this article for more information.

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Warmly Yours has developed this Quick Programming Guide to simplify operation. The full capabilities can be found in the Owner's Guide, or you can view this video for a great tutorial.

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The manufacturer reversed the wiring pattern between the LOAD side and the LINE side on newly minted controllers, verify that your wiring matches the new wiring schematic stamped on the backplate of the new controller.

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Press and hold the DAY button for 3 seconds. All 7 days will then appear on the screen. Use the HOUR, MIN and PGM buttons to establish the desired schedule.

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All thermostats are mandated at 42" height for handicap accessibility, most private residences are mounted at 52-60".

Please see this video on how to install a WarmlyYours nSpiration Series thermostat: https://www.warmlyyours.com/video-media/wire-nspiration-thermostat-to-electric-floor-heating-roll

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If your thermostat is blank, the first thing to do is to test to see if voltage is present at the rear of the thermostat. If no power is reaching the thermostat, please inspect the circuit breaker powering the thermostat in the breaker panel, and verify that the breaker is a non-GFCI type. If it is a GFCI breaker, replace it with a non-GFCI breaker. If there is power entering the thermostat and it is blank, it will need to be replaced.

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Class A for all new orders, Class B if replacing a Class B unit.

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Warmly Yours controllers incorporate built-in Class A GFCI protection for all new floor heating systems.  Class A GFCI provides personnel protection and trips when ground fault current exceeds 5 mA (milliamps).  Class B GFCI protection is pretty much obsolete, but older systems may still require it.  Warmly Yours controllers with built-in Class B GFCI provide equipment and circuit protection and operates when a fault to ground exceeds 15 mA.

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Publications and Manuals



Specifications


Electrical

Connection Single pole, hot & neutral
Connection Method Hardwired
Ground Fault Protection (GFCI) Class B, 15 mA
Maximum Current 15 A
Maximum Load (Resistive Only) 1800 W - 120 V, 15 A
Supply 120 VAC, 50/60Hz
Voltage 120 V

Logistics

Country of Origin (COO) China

Product Dimensions

Depth 2″
Installed Depth 0.75″
Length 4.875″
Width 2.75″

Thermostat

Has Floor Sensor y

Identifiers

SKU TH115-F-120GB

Warranty / Certifications

Warranty Limited 3-year warranty and lifetime technical support

Videos



Articles



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