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ICM Controls Low Ambient Head Pressure Controller

Model #: IMC-326HM-2

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Availability: Available


Quick Overview

Ideal for applications such as:
  • Mitsubishi 110VAC Non-Inverter Systems
  • Supermarkets, frozen food storage
  • Computer rooms, cooling tower fans
  • Temperature/humidity-sensitive environments

ICM Controls Low Ambient Head Pressure Controller

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ICM Controls® Low Ambient Head Pressure Controller IMC-326HM-2
*For Mitsubishi use with M-Series Non-Inverter Units only*

ICM head pressure controls operate as temperature-sensitive motor fan speed controls. Head pressure is regulated during low ambient conditions by varying the amount of airflow through the condenser. This helps ensure efficient pressure across the expansion valve, preventing costly downtime and/or loss of valuable perishable goods.

ICM head pressure controls help prevent evaporator freeze-ups, low-pressure cutouts and liquid-slugged compressors in low ambient conditions. They can eliminate overshoots common to on/off pressure switch controls and also control refrigerant circuits. Features include hard start, low temperature cutoff and high temperature bypass. They are ideal for air conditioning and refrigeration applications. All ICM Head Pressure Controls are quality made in the USA.

Product Features:
  • Integral heat pump bypass circuitry allows you to electronically bypass the speed control during heat pump operation
  • Solid state 10 amp load carrying capability
  • Single unit controls up to 3 refrigerant circuits
  • Multiple voltage ranges: see specifications for details
  • Hard start: adjustable from 1-5 seconds; provides full torque to the motor during startup to help ensure proper fan rotation and lubrication of bearings
  • Low speed cutoff field adjustable; user may set the minimum RPM level at which the condenser fan should operate
  • High temperature bypass applies full voltage to the condenser fan under normal conditions
  • Rugged, epoxy-encapsulated package for greater reliability in harsh environmental conditions
  • Integral transformer simplifies installation, reduces cost; direct setup from the line voltage
Manufacturer ICM Controls
Model ICM326HM2
Input/Output Voltage
Input/Output 120 or 208/240 VAC
Frequency 50/60 Hz
Power Consumption 4 VA @ 24 VAC
Type Solid state
Form Triac
Output Current Max 10 A / Min 100 mA
Frequency 50/60 Hz
Voltage Drop 3.0 volts maximum
Leakage Current 5 mA maximum
Dielectric Breakdown: 2,500 volts minimum
Insulation Resistance 100 M
Operating Temperature -40°F to 167°F
Storage Temperature -40°F to 185°F