Lennox 10W87 .084 Piston Kit

Description

Lennox 10W87 .084 Piston Kit Overview

The Lennox 10W87 is an OEM replacement piston kit designed to deliver accurate refrigerant metering in compatible Lennox heating and cooling systems. The piston — also known as a fixed-orifice metering device — regulates the flow of liquid refrigerant into the evaporator coil, playing a critical role in maintaining proper system efficiency and capacity. The .084-inch orifice bore diameter is precisely sized to match specific Lennox system configurations, ensuring the correct refrigerant charge reaches the evaporator under design conditions.

Key Features

• OEM Lennox replacement piston kit — ensures proper fit and function
• .084-inch orifice bore diameter for precise refrigerant metering
• Fixed-orifice design provides reliable, low-maintenance refrigerant flow control
• Engineered to match specific Lennox system capacity and refrigerant requirements
• Direct factory replacement — maintains original system performance and efficiency

Application

This piston kit is intended for use in compatible Lennox residential and light commercial HVAC systems where a fixed-orifice metering device is specified. Always verify the correct orifice size against the equipment’s service data or nameplate before installation. Proper piston sizing is essential for achieving rated system efficiency and preventing issues such as refrigerant flooding or starvation.

Installation Notes

• Confirm orifice size matches system requirements before installation
• Install in the designated piston holder or liquid line fitting per Lennox service instructions
• Ensure system is properly recovered and evacuated prior to replacement
• Consult Lennox equipment documentation for compatible models and refrigerant types