Historical
ANSI Z21.40.2A-1997/CGA 2.92A-M97
Addenda 1 to ANSI Z21.40.2-1996/CGA 2.92-M96, Gas-Fired, Work Activated Air-Conditioning and Heat Pump Appliances (Internal Combustion)
first addenda cga 2.92-m96/ansi heatpumps heat z21.40.2-1996 airconditioning pumps air
CSA America, Inc. [csa]