and compatible Broan-NuTone HRV/ERV models

Features durable ODF sweat connections for high-pressure reliability in R-410A applications

persistent faults or physical damage to the assembly usually require a full replacement to ensure safety and code compliance

This SPST cold control is engineered with a laser-welded stainless steel bellows to ensure consistent pressure response and long-term mechanical reliability

Common Questions: Does this kit include the DB1-1 interface module

Siemens Building Technology S55624-H105-A Sensor L99H008 and compatible Broan-NuTone HRV/ERV modelsWhen you're commissioning a high performance system, the Siemens Building Technology S55624 H105 A Sensor is the reliable room operator unit you need for precision environmental control. Known technically as the QMX3. P34, this unit is engineered for seamless integration with Siemens DXR series controllers and broad KNX PL Link or KNX S Mode ecosystems. Featuring a segmented backlit display and tactile touchkeys, it provides clear local feedback and