Applications

• • Economizers,
• • OEM’s,

• The A/ENT-CTRL and A/DIFF-ENT are enthalpy controllers are used to monitor indoor and outdoor temperature and humidity before converting them into a relay output with the 24 VAC/VDC supply voltage sourced through the relay contacts when reaching its internal trip points. The supply voltage to the A/ENT-CTRL or A/DIFF-ENT is common to both the N/O or N/C contacts of the 10A Form C relay. The A/ENT-CTRL-F1C’s version includes a dry contact closure or switch instead of sourcing the supply voltage through the relay contacts. The A/ENT converts a capacitive type humidity sensor into a linear 2-wire, 4 to 20 mA loop powered output or it can be used in conjunction with the A/DIFF-ENT to determine whether your indoor or outdoor Enthalpy is greater. The A/ENT can be used with your Economizer control to monitor the indoor or outdoor Enthalpy over a range of 0 to 50 BTU’s. Each unit in this series features a conformal coated circuit board and ¬field selectable elevation adjustments. Applications: Economizers, OEM’s \
  
  The Enthalpy Series are covered by ACI's five (5) Year Limited Warranty, which is located in the front of ACI's Sensors & Transmitters catalog or can be found on ACI's web site, which is: www.workaci.com.