Danfoss ICM 20-C 027H1182 Function Module w/ Top Assembly

Danfoss ICM 20-C (027H1182) Function Module with Top Assembly & O-Rings

The Danfoss ICM 20-C (Code No. 027H1182) is a precision-machined, direct-coupled function insert module engineered for high-pressure industrial refrigeration systems and marine chilling plants. Designed as part of the modular Danfoss ICV Flexline™ series, the ICM 20-C integrates the valve bonnet, internal regulating cone, spindle mechanism, and hermetic magnetic drive interface into a single interchangeable insert.

This specific variant features the Cone C profile, engineered to deliver an expanded flow coefficient with linear and equal-percentage characteristics suited for modulating liquid expansion, high-pressure liquid feed, compressor hot-gas bypass injection, and evaporator suction line pressure control. By utilizing a magnetic coupling drive that interfaces directly with external Danfoss ICAD 600A motor actuators, the ICM eliminates mechanical stem seals, dynamic packing glands, and external leakage paths, ensuring compliance under severe thermal cycling and sub-zero service conditions.

Model Details

• Manufacturer: Danfoss Climate Solutions
• Product Line: ICV Flexline™ / ICM Motor Operated Valves
• Model Type: ICM 20-C
• Manufacturer Part Number (MPN): 027H1182
• EAN / GTIN Barcode: 5702428237642
• Assembly Type: Complete Function Module with Top Cover Bonnet Assembly, Internal Seat, and Elastomer Gaskets

Features

1. Hermetically Sealed Magnetic Coupling: Driven externally through non-magnetic stainless steel bonnet walls by an ICAD actuator magnetic rotor, preventing refrigerant emissions and eliminating shaft seal maintenance.
2. Fast Full-Stroke Actuation: Capable of a 3-second open/close travel time when paired with ICAD stepper technology, enabling emergency shutoff and rapid thermal compensation.
3. Universal Refrigerant Compatibility: Rated for low- and high-density industrial refrigerants including Ammonia (R717), Subcritical CO2 (R744), Halocarbons (R404A, R507, R134a, R448A), and Hydrocarbons.
4. Drop-In Flexline™ Serviceability: Fits seamlessly into any standard ICV 20 cast steel valve housing or ICF 20 valve station without cutting or un-welding pipeline joints.

Compatibility

• Valve Body Enclosures: Fits Danfoss ICV 20 housings (weld connections: DIN, ANSI, SOC, solder) and integrated ICF 20 large valve control blocks (Module Slot 3).
• Electric Actuators: Directly controlled via Danfoss ICAD 600A (Code No. 027H9075 / 027H9120) with 24V DC auxiliary power and 4–20 mA / 0–10 V modulation interfaces.
• Manual Service Tools: Compatible with Danfoss Magnetic Multi-Tool (Code No. 027H0180) for manual seat opening, closing, and servicing when electrical systems are powered down.
• Process Systems: Carrier, Sabroe, York, Mycom/Mayekawa, and GEA marine refrigeration packs, brine chillers, RSW (Refrigerated Sea Water) hold-cooling skids, and industrial blast freezers.

Part Number Cross-References

• Danfoss Module Code: 027H1182 / 027H1182R
• Danfoss Barcode (EAN): 5702428237642
• Associated Actuator Codes: 027H9075 (ICAD 600A with cables), 027H9120 (ICAD 600A terminal block)
• Gasket & O-Ring Overhaul Kit: 027H1190

Frequently Asked Questions

Can I upgrade an existing Danfoss ICS servo valve to an ICM motor valve?

Yes. Because both units share the Danfoss ICV Flexline™ platform, you can convert an analog pilot-operated ICS 20 valve into an electronic modulating ICM 20 motor valve simply by extracting the ICS pilot insert and replacing it with the ICM 20-C (027H1182) function module and an ICAD 600A actuator without replacing the welded pipe body.

Are special tools required to seat the 027H1182 module into the valve body?

The module is engineered for slip-fit insertion into the ICV 20 body. However, care must be taken to guide the internal lower O-ring straight into the machine-bored chamber. The Danfoss 027H0180 multi-tool provides threaded mechanical leverage to safely install or pull stuck inserts during routine vessel dry-dock maintenance.

What refrigerants can this function module handle safely?

The Danfoss ICM 20-C 027H1182 is universally approved for standard industrial refrigerants, including anhydrous ammonia (R717), subcritical carbon dioxide (R744), CFCs, HCFCs, HFCs (R404A, R507A, R134a, R407C), and modern low-GWP hydrofluoroolefins (HFOs like R1234ze).

How do I manually open the valve if the ICAD 600A actuator loses electrical power?

You can remove the ICAD actuator by loosening the three set-screws and placing the magnetic multi-tool (027H0180) directly over the top bonnet stem housing. Rotating the tool counter-clockwise drives the inner magnetic mechanism and lifts the valve cone off its seat to achieve full manual bypass.