Standard on-off control of relative humidity with up to 2 stages output for use with most DCA systems. A remote humidity transmitter is required. Humidity reset from room temperature is available with the addition of a remote temperature sensor.

  • Based on the Honeywell T775U2006 Electronic Controller
  • Easy to use graphical interface
  • Accepts humidity transmitter inputs of 0-5 VDC, 0-10 VDC and 4-20 mA
  • Adjustable set points and differentials
  • Up to two independent SPDT relay outputs
  • Configurable minimum on and off times
  • Sensor calibration
  • MPCH-3001: Basic on-off control of humidity
  • MPCH-3002: Automatic reset of relative humidity from room temperature for special applications. Requires a temperature sensor.
  • HT-W-5 Wall mounted humidity transmitter, 5% RH accuracy
  • HT-D-5 Duct mounted humidity transmitter, 5% RH accuracy
  • TS-W-1097 Wall mounted temperature sensor, 1097 ohm
  • TS-D-1097 Duct mounted temperature sensor, 1097 ohm
Unit of Measure

Power Requirements

N/A 24, 120, or 240 VAC, 50/60 Hz
A Separate Earth Ground is Required for Any Power Source

Power Consumption

N/A 8 VA Maximum at 60 Hz 10 VA Maximum at 50 Hz

Operating & Storage Temperature Ambient Rating

N/A -40 ºF to 125 ºF (-40 ºC to 52 ºC) @ 50 Hz -40 ºF to 140 ºF (-40 ºC to 60 ºC) @ 60 Hz

Relative Humidity (Non-Condensing)

N/A 5 to 95 %

Relay Contact Output Ratings (N.O. and N.C.)

N/A 1/2 HP; 4.9 AFL, 29.4 ALR @ 240 VAC 1/2 HP; 9.8 AFL, 58.8 ALR @ 120 VAC 10A @24 VAC (Resistive) 125 VA Pilot Duty @120/240 VAC

Minimum Sensed Temperature Limits

N/A -60 ºF-51 ºC

Maximum Sensed Temperature Limits

N/A 270 ºF132 ºC

Sensed Temperature Accuracy

N/A 1 ºF/C @ Ambient Room Temperature of 77 ºF (25 ºC)

Temperature Setpoint Range

N/A -40 to 248 ºF-40 to 120 ºC


N/A UL 60730-1 For US and Canada, CUL, CE, C-TICK

Time Clock

N/A Two settable time periods per day are standard on all models

Volatile Memory

N/A The date and time settings are retained for 24 hours after the power outage. After a power loss of more than 24 hours, the date and time settings may need to be reentered. All other settings are stored permanently.


N/A Ratings are subject to change without notice