Thermostat with Power Modules (TH115-AF-12VDC / CT230 series)
This support page provides publications, manuals, videos, support articles, and common support questions for the Master Thermostat product line.
Main Products (6)
Common Support Questions (16)
Publications and Manuals (8)
Videos (2)
Articles (6)
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Main Products
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Common Support Questions
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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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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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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No. The Honeywell CT230 must be controlled by a Honeywell Master Thermostat.
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No. The nJoin power module is not compatible with a Honeywell system.
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To reset the ground fault protection, switch the CT230 OFF and back ON, or cycle the circuit breaker off and on. The TEST light will turn off if the ground fault protection is functioning properly. If the TEST light comes back on, contact Warmly Yours at 1-800-875-5285 and speak to a technical support representative to help further troubleshoot your system.
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Two (2) wires; just the ground and the drive wires.
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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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Three (3) wires; Ground, Drive, and 12 Volt DC.
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The Master Thermostat must operate on 12 VDC and is powered by one of the CT230 linked units.
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Up to ten (10) CT230 linked units can be used in a given system.
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The wire distance between the master thermostat and each CT230 unit must not exceed 500 ft. (150 m). 20-AWG wires are recommended.
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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. Verify that the power module power switches are in the ON position. Test for 12VDC across the 12VDC screw and the GROUND screw at the back of the thermostat. Here is a wiring diagram: https://www.warmlyyours.com/en-US/publications/MASTER-THERMOSTAT-W-POWER-MODULES-WIRING-DIAGRAM-B.pdf
If no power is reaching the thermostat, please test for 12VDC across the 12VDC and GND output at the front of power module base that is supplying power to the thermostat (the faceplate must be installed). If no power is present there, please inspect the circuit breaker in the breaker panel powering the power modules, 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. If power is getting to the power module and there is no 12VDC output to thermostat, the power module will need to be replaced.
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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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The Master Thermostat.
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Publications and Manuals
Technical Specifications
Diagram for converting TH115-12VDC (CT230) setup to nSpiration Thermostat with nJoin (English)Wiring Diagrams
Master Thermostat with Dual Voltage Power Modules Wiring Diagram (English)Master Thermostat with Dual Voltage Power Modules Wiring Diagram (English)
Master Thermostat with Dual Voltage Power Modules Wiring Diagram and Instructions (English)
SmartStat TH115 to TempZone Flex Wiring Diagram (English)
Videos
Product Line Videos
Articles
Circuit Breaker Nuisance Tripping
Honeywell Floor Sensor Ohm Values
Is there a limit to the number of power modules in an OJ system? nJoin
PakTronics PakStat with 1000-ohm sensor (Old WarmlyYours Regulator)
Red light on Thermostat lighted
TH115 Configuration switches
Honeywell Floor Sensor Ohm Values
Is there a limit to the number of power modules in an OJ system? nJoin
PakTronics PakStat with 1000-ohm sensor (Old WarmlyYours Regulator)
Red light on Thermostat lighted
TH115 Configuration switches