Nu-calgon 4320-10 Acid Test Kit Poe Oil

Product Description

The NU-CALGON 4320-10 is an acid test kit designed specifically for use with polyol ester (POE) refrigeration oil. Refrigeration systems using POE oil can develop acid contamination over time, particularly following a compressor burnout or when moisture infiltrates the system. This kit gives HVAC-R technicians a fast, field-ready method to measure acid levels in POE oil, helping determine whether an oil change, filter-drier replacement, or acid flush is warranted before a new compressor is installed. It is a single-unit kit intended for professional refrigeration and air conditioning service work.

This kit is suited for use on residential and light commercial refrigeration and air conditioning systems that use POE lubricant, which is standard with HFC and HFO refrigerants including R-410A, R-134a, R-404A, and similar blends. It is commonly used during burnout recovery procedures, system commissioning checks, and preventive maintenance inspections where oil condition must be documented before returning a system to service.

Key Features

• Formulated exclusively for polyol ester (POE) refrigeration oil testing
• Field-portable design supports on-site acid level determination
• Helps technicians confirm oil condition before compressor replacement
• Supports documentation of system cleanliness during burnout remediation
• Single-unit (EA) packaging for individual job use

Compatibility

Designed for use with polyol ester (POE) refrigeration oil as found in HFC and HFO refrigerant systems. Not intended for use with mineral oil or alkylbenzene lubricants.

Installation Notes

This test kit is used by licensed HVAC-R technicians as part of system diagnostics and burnout cleanup procedures. Follow the kit instructions precisely and wear appropriate PPE, including chemical-resistant gloves and eye protection, when handling refrigeration oil samples. Recover system refrigerant and relieve system pressure before extracting an oil sample in accordance with EPA Section 608 requirements and local safety regulations. Dispose of used test materials and contaminated oil per applicable environmental regulations.

Technical Specifications

• Oil Type Compatibility: Polyol ester (POE) only
• Pack Size: 1 EA
• Unit of Measure: EA

Standard Information

• Brand: NU-CALGON
• Manufacturer Part Number: 4320-10