
AUTOMATIC DAMPER DEVICES FOR USE WITH GAS-FIRED APPLIANCES
出版:Canadian Standards Association

專家解讀視頻
Pertains to the construction, performance, and installation procedures for a newly produced automatic damper device (hereinafter referred to as device) constructed entirely of new, unused parts and materials and designed to control the flow or products of combustion from an individually, automatically operated, gas-fired appliance listed by a nationally recognized testing agency.