US32-NX XBus Communicating Universal GE/HP Thermostat

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  • Product Description

    The US32-NX is a universal gas/electric (2H/2C) and heat pump (3H/2C) communicating thermostat designed for new or replacement commercial and residential applications where there is a need to network, remotely access, monitor and/or control settings on multiple thermostats. The thermostat works with Xbus and StrongMesh wireless systems. This class of thermostats represent the latest in solid-state surface mount electronics and manufacturing techniques incorporated into an extremely low-profile, ultra-slim white ABS plastic case. A direct-wire, easy-to-install subbase mounts directly on a standard vertical outlet box or any drywall surface using hardware provided.

    This thermostat is a direct replacement for the following thermostats:  GE22-NX, HP32-NX, GE11-NX, HP21-NX, MST-1, SST-1 


    • Gas/Electric/Oil (2H/2C) or Heat Pump (3H/2C) Operation
    • Selectable Celsius or Fahrenheit temperature display
    • Beautiful Blue Backlight with adjustable brightness
    • Fan selector for continuous fan operation
    • Built-in short cycle protection & anticipation and droop
    • Front panel lockout with adjustable temporary override timer from 0min to 24 hours; +/-3oF or  +/-5oF adjustment during override
    • Day/Night (Occupied/Unoccupied) button allows setpoint setback for energy savings
    • No battery required (maintains last setpoint/mode of operation following power outages)
    • Lockable access cover
    • Automatic changeover from heat-to-cool and cool-to-heat
    • 2oF (1oC) minimum Heat/Cool separation
    • Selectable minimum on/off time (2 or 4 minutes)
    • Optional remote indoor, outdoor and duct sensing modules
    • Complete control and status via Net/X controller & wireless coordinator

    Technical Specs

    • Specifications:
    • Rated Voltage: 20 to 30Vac, DC 24 nominal
    • Rated A.C. Current: 0.05 to 0.75 Amp continuous per output with surges to 3 Amps maximum
    • Rated D.C. Current: 0.0 to 0.75 Amp continuous per output with surges to 3 Amps maximum
    • Control Range: Heating: 38-88oF in 1o steps (6-30oC in 1o steps)
    • Cooling: 60-108oF in 1o steps (16-40oC in 1steps)
    • Thermostat Measurement Range: 28 - 124oF or 0 - 48oC
    • Control Accuracy: +/- 1oF @ 68oF (0.5oC @ 20oC
    • Minimum Deadband: (between heating and cooling) 2oF or 1oC
    • Dimensions: 4.5" H x 4" W x 7/8" D (114mm x 102mm x 22mm)
    • Equipment Terminations: R-switching voltage, W1-heat-1 or aux/emer heat, W2-heat-2 or aux/emer heat, Y1-compressor 1, Y2-compressor 2, G-fan, O/B-reversing valve
    • Power Terminations: 24V - power, 24V(c) - power common
    • Communication Terminations: StrongMesh Wireless
    • Sensor Terminations: RS+V - sensor power, RS1 - comm(+), RS2 - comm(-)
    • Setback Terminations: CLK1, CLK2 dry contact closure
    • Note: This thermostat contains electronic circuitry that replaces the conventional mechanical anticipator.