027H2204
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The Danfoss 027H2204, part of the Danfoss Cables and Accessories series, is a Function Module designed as an Insert Servo component. It features a Kv value of 8 m³/h and a Cv value of 9.3 gal/min, with a net weight of 0.43 kg. The module includes gaskets and O-rings and is compatible with the ICV 25.
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Product Description:
Danfoss is a global manufacturer specializing in refrigeration, air conditioning, heating and motion control solutions. The company provides engineered components and systems designed for industrial automation, mobile machinery and building management.
The 027H2204 function module is a pilot operated ICS main valve. This valve uses pilot valves to control refrigerant flow through modulation or simple on/off actuation. The function module can operate with either a single screwed in pilot valve or an external pilot flow connection. Its function is determined by the type of pilot valve connected. The main valve is normally closed when the pilot valve is closed, and fully opens when the pilot valve is fully open. If the pilot valve is partially open, the ICS valve opens proportionally. The manual operation is possible through a spindle that opens the valve plate. It uses M20 × 60 A2-70 DIN 933 bolts for installation. The valve is capable of being opened under a minimum differential pressure of 0.2 bar (3 psig). The maximum opening pressure differential (MOPD) for solenoid applications varies with coil power: 10 W a.c. supports up to 21 bar (305 psi) while 20 W a.c. allows up to 40 bar (580 psi). This provides operational flexibility under varying load conditions.
The 027H2204 function module provides precise refrigerant control with dependable response to pilot signals. It is engineered to meet system needs where modulating or fixed step control is required. It can be configured with pilot accessories as needed for specific applications. The valve body and pilot interfaces ensure compatibility with standard Danfoss controls. The modulation performance is stable due to the pilot driven actuation that makes it suitable for systems needing pressure or temperature regulation.
Frequently Asked Questions about 027H2204:
Q: How does the 027H2204 function module adapt its flow behavior based on pilot valve response in dynamic systems?
A: The valve opens proportionally to the pilot valve's position, enabling smooth modulation. This ensures accurate control in systems where partial opening is required for pressure or temperature regulation.
Q: What kind of pilot valve setup flexibility does the 027H2204 function module support during configuration?
A: It allows installation with either a screwed-in pilot valve or external pilot flow connection. This design provides broad integration options depending on system layout and control logic.
Q: How does the 027H2204 function module maintain refrigerant control in systems with varying modulation needs?
A: The valve is pilot-operated, allowing both on/off and modulating control based on pilot type. This makes it well-suited for refrigeration loops needing either fixed step or dynamic adjustment.
Q: What manual intervention capability does the 027H2204 function module offer during commissioning or maintenance?
A: It includes a spindle for manual opening of the valve plate. This function enables technicians to bypass automatic control when required for testing or service procedures.
Q: How does the 027H2204 function module perform under different solenoid coil power ratings in high-pressure circuits?
A: Its maximum opening pressure differential varies with coil power, supporting up to 40 bar with higher-wattage coils. This flexibility ensures reliable actuation across a range of system pressures.
