Products Description
| Product Name | Carrier 02XR04055303 Float Valve |
| Model | 02XR04055303 |
| Applicable Industries | Construction and Commercial |
| Application | Refrigeration compressor |
| Packaging | Cardboard Box |
| MOQ | 1 Piece |
Carrier 02XR04055303 Float Valve: Core Functions
1. Automatic Refrigerant Liquid Level Control (Core Function)
The float chamber is connected to the evaporator via a balance line, ensuring synchronized liquid levels. When the liquid level drops, the float sinks; the lever then opens the valve core wider, increasing the refrigerant supply. Conversely, when the liquid level rises, the float rises; the lever then closes the valve core slightly, reducing the refrigerant supply. This dynamic regulation maintains the optimal liquid level, thereby ensuring maximum heat exchange efficiency.
2. Prevention of Liquid Hammer and Dry-Firing
If the liquid level becomes excessively high, the valve automatically reduces or cuts off the refrigerant supply, preventing liquid refrigerant from entering the compressor—which could otherwise cause liquid hammer damage to the rotor or bearings. Conversely, if the liquid level drops too low, the valve automatically increases the refrigerant supply to prevent the evaporator from “dry-firing” (operating without sufficient liquid), thereby avoiding overheating of heat exchange tubes and a decline in cooling capacity.
3. System Pressure Stability and Energy Efficiency
Precise liquid level control ensures that the entire heat exchange surface area of the evaporator is fully utilized. This stabilizes the evaporation pressure and keeps superheat levels controllable, allowing the compressor to operate within its most efficient pressure ratio range. Consequently, the unit’s Coefficient of Performance (COP) improves by 8% to 15%, resulting in reduced energy consumption.
Load-Adaptive Regulation
Under partial-load conditions, the refrigerant circulation volume decreases; the float valve automatically reduces the valve core opening to match the lower refrigerant supply requirements of the reduced load. Under full-load conditions, the valve opens fully to ensure maximum refrigerant flow, providing stable and adaptive performance across the entire operating load range.
Safety Protection and Fault Diagnostics
In the event of a malfunction—such as a stuck float, a leak, or a broken lever—the liquid level will rise or fall abnormally. This triggers the unit’s high/low liquid level alarms and initiates a protective shutdown sequence, preventing major equipment damage and facilitating the rapid identification and localization of the fault.
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Technical parameter
Company Profile
Factory Introduction
| Q1:For refrigeration industry, which brands are your products covering? | A1:We produce filter element replacements for brands like,Bitzer, Carrier, York, McQuay, Trane, etc… |
| Q2:Does the price include freight? | A2:The quotation is usually the factory price. We can recommend the most economical logistics plan and calculate the freight according to your destination and quantity. |
| Q3:How to ensure product quality? | A3:We have a strict quality control process, and we will carry out multiple inspections before the products leave the factory to ensure that they meet the standards. |
| Q4:Why choose us? | A4:Product reliability: We are a professional manufacturer . can offer high-quality products at the most competitive prices. Technical support: We provide technical assistance. Industry experience: We have over 10 years of experience in the refrigeration equipment service field. After-sales service: We offer professional after-sales service. Team collaboration: We have a professional team that can provide you with prompt services and delivery schedules. |
Common Product Faults and Replacement Criteria
1. Unit reports low liquid level or insufficient cooling capacity: Float valve core fails to seal tightly, internal leakage occurs, float ball fills with liquid and sinks, or lever is deformed.
2. Unit reports high liquid level or frequent liquid hammer: Float valve core is stuck in the fully open position, float ball is stuck in the upward position, or the balance line is clogged.
3. Valve body / fittings leak refrigerant or oil: Seals have aged, threads are damaged, the valve body is cracked, or the float ball weld seam is leaking.
4. Liquid level fluctuates significantly or is unstable: Lever is loose, pivot point is worn, float ball lacks sufficient buoyancy, or valve core is worn.
5. Appearance shows deformation, corrosion, or seizing: Prolonged corrosion or vibration has caused valve body deformation, lever breakage, or float ball damage; immediate replacement is required.
