VENT PIPES, GAS-POWERED DEVICES, VENTILATION EQUIPMENT, SPECIFICATIONS, PERFORMANCE TESTING, TEST EQUIPMENT, MARKING, INSTRUCTIONS FOR USE
被代替标准
ULC-S636-95
适用范围
1. SCOPE 1.1 Thise requirements cover the design and construction of gas venting systems
intended for negative or positive pressure venting of gas fired appliances
producing flue gases having temperatures as specified in clauses 1.2 and 1.3. 1.2 Class I venting systems are suitable for gas fired appliances producing
flue gas temperatures of more than 135°C but not more than 245°C. 1.3 Class II venting systems are suitable for gas fired appliances producing
flue gas temperatures of 135°C or less. 1.4 Class II venting systems are further classified into four temperature
ratings as follows: A Up to and including 65°C; B Up to and including 90°C; C Up to and including 110°C; and D Up to and including 135°C.