gas-fired make-up air unit

HVAC

Greenheck Direct Gas-Fired Make-Up Air Units Now Feature R-454B Refrigerant

Direct gas-fired make-up air units from Greenheck now use R-454B, an A2L refrigerant mandated by the Environmental Protection Agency with…
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New Greenheck Video Demonstrates Make-Up Air Start-Up

Greenheck’s latest video demonstrates how to perform a general start-up of a direct gas-fired make-up air unit. The video details…
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