AprilAire S84NSU Universal 1H/1C or 2H/1C Heat Pump Thermostat
AprilAire S84NSU Universal 1H/1C or 2H/1C Heat Pump Thermostat
Straightforward single-stage universal control for conventional or heat-pump HVAC systems.
The AprilAire S84NSU is a non-communicating universal thermostat supporting 1H/1C conventional or 2H/1C heat-pump systems. Its capacitive-touch interface, color graphical display and real-language setup make it easy to commission without unnecessary connectivity.
The thermostat can operate in programmable or non-programmable mode and can be powered by two AA batteries or an HVAC C-wire.
Key Features
- 1H/1C conventional or 2H/1C heat-pump support.
- Programmable or non-programmable operation.
- All-days, weekday/weekend or 7-day schedule options.
- 1.77-inch color graphical display.
- Capacitive-touch interface.
- Dual powered: two AA batteries or C-wire.
- Progressive Recovery and Heat Blast comfort functions.
- Filter and HVAC service reminders.
- 5-year warranty.
Application & Compatibility
Use the S84NSU when the project needs single-stage universal capability including a 2H/1C heat pump. For multi-stage 2H/2C or 4H/2C heat-pump equipment, move to the S86 family.
Key Specifications
| Model | S84NSU |
|---|---|
| Conventional Stages | 1H/1C |
| Heat Pump Stages | 2H/1C |
| Programming | Programmable or non-programmable |
| Interface | 1.77-in color display / capacitive touch |
| Power | 2 AA batteries or C-wire |
| Connectivity | No Wi-Fi |
| Warranty | 5 years |
Related AprilAire Products
- AprilAire 8084 Wall Cover for S84 Series Thermostats
- AprilAire 8022 3-Wire to 4-Wire Thermostat Adapter
- AprilAire 8051 Flush-Mount Temperature Sensor
- AprilAire 8053 Surface-Mount Temperature Sensor
Frequently Asked Questions
Does the S84NSU work with a heat pump?
Yes. It supports up to 2H/1C heat-pump operation.
Does it require a C-wire?
No. It can operate from two AA batteries or a C-wire.
Which wall cover fits the S84NSU?
Use the AprilAire 8084 S84 Series wall cover.