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Frequently Asked Questions

Frequently Asked Questions

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Lennox Cooling Systems

Will a new R-410A outdoor unit work with my R-22 indoor unit?

If you purchase an air conditioner or heat pump that uses R-410A, your HVAC technician will need to inspect your indoor unit to see if it meets the performance requirements of the R-410A system. If the indoor unit is older, it will likely need replacing.

Additionally, outdoor cooling units are specifically designed to work with matched indoor units for optimum efficiency and performance. Air conditioners and heat pumps may "work" with other indoor units, but the result is a definite compromise in overall system performance.

Dry-charged units
Occasionally, budget constraints won't allow replacing an entire cooling system. For these situations, Lennox offers dry-charged heat pumps and air conditioners. These units are shipped dry and charged with refrigerant upon installation, so they work seamlessly with existing R-22 indoor units. To assure compatibility, your Lennox Dealer will install the unit to meet all applicable performance requirements.

A dry-charged heat pump or air conditioner allows you to avoid the costs of ongoing repairs to your outdoor unit, while also saving you the expense of replacing fully functional indoor equipment. Dry-charged units come with the additional assurance of a 5-year Limited Warranty for worry-free operation.

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