Description
The Johnson Controls XP-9107-8304 Digital Expansion Module is a small solution. This module works with 24 VAC and draws only 2 VA. It has four binary outputs that are in fact on/off switches. These outputs are mostly relays hence the XP-9107-8304 is suitable for controlling the various HVAC equipment including the pumps, valves and damper systems. The expansion module presented here enables a building automation system to add more control zones, enhancing comfort and energy efficiency in the building. This results in high overall system efficiency due to a low power usage.
