UL-1812 › Complete Document History
Standard for Ducted Heat Recovery Ventilators
Complete Current Edition: |
4TH EDITION - Standard for Ducted Heat Recovery Ventilators - May 3, 2013
CHANGE 04/14 - REVISION CHANGE - CODE C - April 17, 2014
CHANGE 06/17 - REVISION CHANGE - CODE C - June 21, 2017
CHANGE 04/21 - REVISION CHANGE - CODE C - April 13, 2021
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Obsolete Revision Information: |
CHANGE 11/12 - REVISION CHANGE - CODE C - Nov. 1, 2012
CHANGE 06/10 - REVISION CHANGE - CODE C - June 11, 2010
3RD EDITION - DUCTED HEAT RECOVERY VENTILATORS - Oct. 29, 2009
CHANGE 03/09 - REVISION CHANGE - CODE D - March 13, 2009
CHANGE 01/06 - REVISION CHANGE - CODE D - Jan. 26, 2006
CHANGE 08/04 - REVISION CHANGE - CODE D - Aug. 13, 2004
2ND EDITION - DUCTED HEAT RECOVERY VENTILATO - April 11, 1995
1990 EDITION - DUCTED HEAT RECOVERY VENTILATO - Jan. 1, 1990
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