ANSI Z21.23b-2005
Addenda 2 to ANSI Z21.23-2000, Gas Appliance Thermostats
Product Details
Details test and examination criteria for integral gas valve type and electric type thermostats which are used as integral parts of gas-burning appliances. It presents minimum levels for the substantial and durable construction, safe operation and acceptable performance for such thermostats. The standard does not apply to wall-mounted thermostats for comfort heating control.