ZD8X26TZ/U Inactivate They provide high or low

They provide high or low limit with alarm or high limit shutdown with manual reset

Wall cover plates must match the brand or series of thermostats they're used with

Versatile Transformer: The AT20 Transformers are Step-Down Transformers used Primarily for Powering 24 VAC Control Systems

and (2) SPDT switched output

This series can be used as part of an existing network or as an isolated building management system Wi-Fi network

ZD8X26TZ/U Inactivate They provide high or lowThis easy to wire damper includes a 24 volt motor used to control circulating air in HVAC systems. The ZD is a power close and spring open damper used when a normally open damper is required. It's typically used with TrueZONE and other electronic zoning systems.