UL 921 review is complete
UL has completed its file review of standard UL 921 for commercial dishwashers, however, the testing phase of the review has been complicated by the lack of adequate testing facilities in the country. UL and the NAFEM commercial dishwasher stakeholders have agreed upon a solution to this complication. Ventless dishwashers that have been evaluated by UL to the UL 921 Supplement SA4 heat load calculation test requirements for commercial dishwashers provided with self-contained condensing systems are authorized to include the sensible and latent heat load ratings on the dishwasher’s nameplate. This information allows the Authorities Having Jurisdiction (AHJ) to determine the need for ventilation of the product and if the establishment has sufficient HVAC capacity to maintain established room ambient conditions. Dishwashers that have not been evaluated by UL to the UL 921 Supplement SA4 heat load calculation test requirements are not authorized to include this information on the nameplate.