Network Thermostat RP32HE-Wi-Fi

(Evaluated by UC Berkeley) An advanced thermostat controls residential and small commercial Heating, Ventilation, and Air Conditioning (HVAC) equipment while communicating with other systems, and uses computational capability to provide advanced functionality, such as including additional sensors, the ability to group multiple thermostats, energy reports, and/or notifications.

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Technology Basics Application Guidance Energy & Cost Impacts

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Network Thermostat RP32HE-Wi-Fi

The NT thermostat supports up to two stages for heating and cooling (conventional) and up to 3 stages of heating/2 cooling for heat pumps. NT can support carbon dioxide sensing. The thermostat provides 19 alerts (such as hi/lo temperature alerts). BACnet/IP and Modbus TCP/IP over WiFi.

Hub Highlights:

Optional Carbon Dioxide sensor; remote sensors (including occupancy)
Auxiliary system sensors (door/windows, freezer, SAT) and option for humidity control
Operation even during network outages

Model Number	X5H-WIFI-B (replaced by X7-WIFI-B)
Primary Setting	Commercial
User Interface Options	Web app
Multiple Thermostat Control	Ability to manage multiple thermostats: Efficient equipment restart randomizes equipment starts to minimize multiple units turning on simultaneously when there are multiple thermostats at the location Random restart on power up staggers restart of HVAC system after power outage
Access Restriction	Keypad lockout Commercial lockout with programmable temporary override time and temp adjustment
Notifications/Reports	Email and text alerts include Hi/Lo Temps for Indoor, Outdoor, Supply, Return, and Aux Temps, inefficient equipment runs, change filter notifications, and digital inputs History: sub-metering and run-time reporting.
Available Sensors	Onboard relative humidity Option to add module for Carbon Dioxide Separate remote wireless temperature, relative humidity, outdoor temperature, and occupancy sensors, and auxiliary (door/windows, freezer, SAT)
Demand Response Capable	Can participate in Utility Demand Response programs

Last Edited on: 07/2023

Model	X5H-WIFI-B (replaced by X7-WIFI-B)
Sample Size	1
Thermal sensor accuracy (@68F)	0.0±0.3 °F
Thermal sensor accuracy (@75F)	−0.2±0.5 °F
Impact of surrounding surface temperature on Thermal sensor accuracy	Good
Standby power	1.68 W

Last Edited on: 10/03/24

Data Collection

The technology evaluation team performed a heuristic evaluation of basic thermostat modes of operation (turning on, changing setpoint, reading display) for each of the tested products. In heuristic evaluations assess user interfaces according to guidelines for the design of user-friendly systems.

Sample Size

Estimated Usability

Good: likely good usability in most tasks; Fair: likely fair usability in most tasks.

Fair