| Connection Type | Snap |
| Materials (Body) | ASA Thermoplastic |
| Application | A self-contained control with sensor, setpoint dial and valve actuator in one unit. Not for use inside enclosures or where airflow around sensor is restricted. |
| Used With | V2000, V100 + Danfoss RA2000 valves |
| Dimensions | 3.07 H x 1.95 Dia. |
| Temperature Range (F) | 34 F to 82 F |
| Connection Size (in.) | Danfoss RA |
| Replaces | T2040NA |
| Scale Markings | 0 - * - 1 … 5 |
| Collar Diameter (in.) | 1 3/16 in. |
| Sensor (Integral or Remote) | Integral |
| Setpoint (Integral or Remote) | Integral |
Description
The T3019DAW0NA is a thermostatic radiator actuator from Resideo (Honeywell Home). It is the head that sits on the radiator valve and holds the room at the temperature set on the dial, with no power and no wiring.
The mechanism is a sealed charge that expands as the room warms and pushes the valve closed. Because it is entirely mechanical, it keeps working through a power cut and it never needs a battery — which is why TRVs are still specified on hydronic systems that have every other control electronic.
Connection: this head is built for Danfoss RA valve bodies. It does not fit M30x1.5 bodies, and it does not fit the Resideo V110 or V2040 series. Check the thread on the valve before ordering.
What a working TRV takes: a valve body and a thermostatic head, ordered separately. This listing is the head.
- Brand: Resideo (Honeywell Home)
- Manufacturer Part #: T3019DAW0NA
- Type: Thermostatic radiator actuator
- Sensor: Integral
- Connection: Danfoss RA
- UPC: 5059087016638
- Category: Thermostatic Radiator Controls


