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H205A1012 Zoom



Basic enthalpy controller used with Honeywell legacy systems.


  • Senses total heat content (temperature and humidity) of outdoor air
  • Mounts in any position in outdoor air duct.
  • Controls amount of outside air brought into system with respect to total heat content (or enthalpy) of outside air.
  • Combines temperature and humidity sensors into a single device.
  • Nylon humidity sensor.
  • Liquid-filled bulb temperature sensing element, mounted on back of control.

Product Specifications

Dimensions (in.) 5 1/4 in. high x 3 1/16 in. wide x 1 3/16 in. deep
Dimensions (mm) 133.3 mm high x 79 mm wide x 30.2 mm deep
Used With W859F
Comments Includes case and cover, mounting plate, adjustable knob and scale
Frequency 50 Hz; 60 Hz
Approvals, Underwriters Laboratories Inc. UL Listed File: E4436, Guide: XAPX2
Operating Humidity Range (% RH) 10 to 80% RH
Contact Ratings 24 Vac-- Terminals 1 and 2: 50VA; Terminals 2 and 3:
100mA minimum to 250mA maximum
Voltage 24 Vac
Operating Temperature Range (F) 53 F to 78F
Operating Temperature Range (C) 12 C to 26 C

Additional Information

Name H205A1012
Documentation N/A
Manufacturer Honeywell
Price $421.88
Discount Price $865.40

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