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ICM

ICM is a manufacturer of controls and components for the HVAC and industrial burner markets, headquartered in the United States. The brand is known for producing replacement and aftermarket controls that are compatible with a wide range of OEM equipment. 3G Electric stocks a selection of ICM products, including time-delay relays, line voltage monitors, ignition transformers, furnace control boards, and temporary construction thermostats. These components are used in applications such as furnace control, boiler burner ignition, voltage monitoring, and temperature regulation in commercial and industrial settings.

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About ICM

ICM is a manufacturer of controls and components for the HVAC and industrial burner markets, headquartered in the United States. The brand is known for producing replacement and aftermarket controls that are compatible with a wide range of OEM equipment. 3G Electric stocks a selection of ICM products, including time-delay relays, line voltage monitors, ignition transformers, furnace control boards, and temporary construction thermostats. These components are used in applications such as furnace control, boiler burner ignition, voltage monitoring, and temperature regulation in commercial and industrial settings.

ICM’s product line covers several key categories. Adjustable time-delay relays, such as the ICM102B and ICM253B, are available in on-delay and off-delay configurations with knob-adjustable timing ranges from 1.5 seconds to 600 seconds, operating on 18 to 240V AC. These relays are surface-mounted and rated for 1 to 1.5 A, suitable for sequencing and blower control in HVAC systems. Line voltage monitors like the ICM492D provide single-phase monitoring with an LCD display and adjustable voltage unbalance detection from 5% to 25%, using SPDT contacts for alarm or shutdown signaling.

Ignition transformers for hot water and steam boiler burners, such as the ICM1501, are designed for oil-fired systems and are compatible with Honeywell R8184G series models. These transformers mount via bracket and have dimensions of 4-7/16 in x 4-1/16 in x 2-5/16 in. Furnace control boards like the ICM288 serve as OEM replacements for Rheem equipment, controlling inducers and operating at 24V AC. Temporary construction thermostats in the ACH series are low-voltage, cylindrical units for heat-only or cool-only applications, with setpoints ranging from 45°F to 65°F and a 9°F differential, operating on 18 to 30V AC.

3G Electric supplies these ICM products globally, providing datasheets and logistics support for procurement specialists and maintenance managers. The components are built to standard industrial specifications, with no proprietary certifications claimed beyond those inherent to the product types. Buyers can expect compatibility with common OEM systems and straightforward installation in existing control panels or burner assemblies.

Common Applications

  • HVAC system sequencing — ICM ICM102B time-delay relay for on-delay control of fans or compressors
  • Boiler burner ignition — ICM ICM1501 ignition transformer for oil-fired hot water and steam boilers
  • Voltage monitoring in industrial panels — ICM ICM492D line voltage monitor for single-phase equipment protection
  • OEM furnace replacement — ICM ICM288 furnace control board for Rheem integrated furnace systems
  • Temporary construction heating — ICM ACH065 low-voltage thermostat for heat-only control in temporary structures
  • Blower off-delay control — ICM ICM253B time-delay relay for fan blower shutdown sequencing

Frequently asked questions

Common questions about ICM from 3G Electric.

What is the operating voltage range for ICM time-delay relays like the ICM102B?

The ICM ICM102B adjustable time-delay relay operates on 18 to 240V AC. It is configured for on-delay operation with a delay range of 1.5 to 600 seconds, adjustable via a knob. The relay has a 1.5 A rating and uses a surface-mount style with 2 pins.

Are ICM ignition transformers like the ICM1501 compatible with specific burner models?

Yes, the ICM1501 ignition transformer is compatible with Honeywell R8184G1161, R8184G1294, and R8184G4066 models. It is designed for oil-fired hot water and steam boiler burners, mounts via bracket, and has overall dimensions of 4-7/16 in x 4-1/16 in x 2-5/16 in.

What does the ICM492D line voltage monitor display and what parameters does it monitor?

The ICM492D line voltage monitor features an LCD display and monitors single-phase line voltage. It has an adjustable percentage voltage unbalance range of 5% to 25% and uses SPDT - NO/NC contacts. The operating voltage is 18V AC to 240V AC.

Can ICM furnace control boards like the ICM288 replace OEM boards from Rheem?

Yes, the ICM288 furnace control board is an OEM replacement compatible with Rheem equipment, specifically replacing part number 62-24084-82. It operates at 24V AC and controls inducers. The board is designed for integrated furnace control applications.

What temperature ranges are available for ICM temporary construction thermostats?

ICM temporary construction thermostats in the ACH series are available in heat-only or cool-only models. Setpoints include 45°F, 55°F, and 65°F, with a 9°F temperature differential. They operate on 18 to 30V AC and have a cylindrical shape with universal mounting direction.

Does 3G Electric supply ICM products?

Yes — 3G Electric (S) Pte. Ltd. supplies ICM products. We stock the ICM catalog and supply genuine factory-original products with full manufacturer warranty and technical support.