mercury-free snap switches

Adjustments are made by removing the cover and turning the internal scales to the desired "water column inches" for both the high and low limits

meaning it opens as temperatures increase to facilitate cooling

The manual reset thermal limit is a safety standard

York 015-04023-000 Piping Kit 318423-701 mercury-free snap switchesThe York 015 04023 000 Piping Kit is a specialized OEM piping retrofit kit engineered to convert legacy 4 pipe refrigeration systems to modern 3 pipe configurations. As a veteran technician, you know the industry shifted away from the 4 pipe Copeland compressor designswhich utilized dedicated discharge, suction, pressure equalization, and oil equalization linesin favor of the more efficient 3 pipe setup. This kit serves as the essential HVAC piping