nHance Programmable Thermostat UDG-4999

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.

Need more help? View support options

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.)

Need more help? View support options

Cause:

Child lock is activated

Solution:

• From the home screen
  
• Press "OK" button twice
• Press button UP and DOWN simultaneously for 3 sec.
• Unlock Child Lock

Need more help? View support options

Cause:

Floor sensor is not connected to terminals C&D, defective or damaged

Solution:

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.

Need more help? View support options

Cause:

Your heat mat or installation between thermostat and heat mat has a fault current to ground

Solution:

The thermostat has cut off the power for your safety. Please contact your local electrician.

Need more help? View support options

Cause:

The connection is incorrect

Solution:

Check the connections between the two units. If the USG is connected incorrectly to the thermostat, the USG won't switch off.

Need more help? View support options

Yes, the floor sensor wire can be extended up to 300 feet with 18 AWG wire.

Need more help? View support options

Solution:

Yes the adaptive function is reset during a factory reset.

Need more help? View support options

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

Need more help? View support options

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.

Need more help? View support options