Transformer (TR-series)

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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One thermostat can control multiple heating mats/cables as long as all the heating elements are using less than 15 amps:

TempZone™ will cover aprx. 120 sq. ft. for 120V systems and 240 sq. ft. for 240V systems on one thermostat.

Environ™ will cover aprx. 150 sq. ft. for 120V systems and 300 sq. ft. for 240V systems on one thermostat.

Slab Heat will cover aprx. 90 sq. ft. for 120V systems and 180 sq. ft. for 240V systems on one thermostat.

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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.

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Poor maintenance, overheating, insulation breakdown, and vermin damage are common causes.

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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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If your floor is not heating and your thermostat is functioning properly, test to see if proper voltages are present at the transformer.  If 24 VAC is not being returned by the transformer, then it either needs to be replaced or checked to ensure that the internal secondary circuit breakers have not been tripped and are functioning properly.  Contact Warmly Yours technical support at 1-800-875-5285 for further assistance.

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