Mechanical & Plumbing
Lennox three-phase air conditioners and heat pumps
July 16, 2012 – Lennox has announced its three-phase nitrogen-charge split system air conditioners and heat pumps, offered as replacement units for 3- to 5-ton equipment that currently uses R-22 refrigerant. The products are designed to accommodate temperatures up to 125ºF (or ~51ºC). The units feature a nitrogen-charged, high-efficiency scroll compressor that is grommet-mounted for quiet operation and protected internally against high-temperature motor overload conditions, adds Lennox.