nJoin Power Module with Class A GFCI
Part Number: USG-4000
The nJoin is an intuitive Power Module with built-in GFCI for large electric floor heating applications. The nSpire Touch, nSpire Touch Wifi, nHance and nTrust thermostats can be extended with additional nJoin power modules. Output can be increased by 15 A per nJoin module.
This support page provides publications, manuals, specifications, videos, support articles, and common support questions
The nJoin is an intuitive Power Module with built-in GFCI for large electric floor heating applications. The nSpire Touch, nSpire Touch Wifi, nHance and nTrust thermostats can be extended with additional nJoin power modules. Output can be increased by 15 A per nJoin module.
This support page provides publications, manuals, specifications, videos, support articles, and common support questions
Common Support Questions (10)
Publications and Manuals (11)
Specifications (16)
Videos (2)
Articles (2)
Similar Items (1)
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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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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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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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You can control your slab heating system with any WarmlyYours nSpiration Series thermostat. Depending on the size of your project, you may also need to add a relay or nJoin power module.
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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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Solution:
Yes the adaptive function is reset during a factory reset.
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Check the connections between the thermostat and power module. If the power module is connected incorrectly to the thermostat, the power module won't switch off.
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No. The nJoin power module is not compatible with a Honeywell system.
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This indicates a fault, current to ground. The thermostat has cut off the power for your safety. Please contact your local electrician or WarmlyYours Technical Support.
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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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Publications and Manuals
Installation
nJoin (USG-4000) Installation Instructions (English, French, Spanish)WarmlyYours nSpire Touch WiFi Thermostat Controller Driver Setup For Control4 (English)
WarmlyYours nSpire Touch WiFi Thermostat Controller Integration Notes For Elan Home Automation (English)
Technical Specifications
Diagram for converting TH115-12VDC (CT230) setup to nSpiration Thermostat with nJoin (English)Technical Support
Environ™ Ohm Reading Guide (French)Environ™ Ohm Reading Guide (Spanish)
TempZone™ Single Conductor Ohm Reading Guide (Spanish)
TempZone™ Twin Conductor Ohm Reading Guide (French)
Specifications
Warranty / Certifications
| Approvals | cULus listed |
| Ingress Protection (IPxx) Rating | IP21 |
| Warranty | Limited 3-year warranty and lifetime technical support |
Electrical
| Connection | 4 wires, double pole |
| Connection Method | Hardwired |
| Ground Fault Protection | GFCI, Class A, 5 mA |
| Maximum Current | 15 A |
| Maximum Power | 1800 W @ 120 V, 3120 W @ 208 V, 3600 W @ 240 V |
| Supply | 120 VAC, 208 VAC, 240 VAC (50/60Hz) |
Logistics
| Country of Origin (COO) | Denmark |
Product Dimensions
| Depth | 2″ |
| Installed Depth | 0.8125″ |
| Length | 4.688″ |
| Width | 2.875″ |
Identifiers
| SKU | USG-4000 |
| UPC (GTIN-12) | 881308051259 |
Videos
Item Videos
Product Line Videos
Articles
How far apart can the OJ Power Module be from the thermostat?
Is there a limit to the number of power modules in an OJ system? nJoin
Is there a limit to the number of power modules in an OJ system? nJoin
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