CSA ANSI Z21.23a-2003 (R2005)
Addenda 1 to ANSI Z21.23-2000, Gas Appliance Thermostats
Amendment by CSA Group, 01/01/2003
Full Description
Details test and examination criteria for integral gasvalve type and electric type thermostats which are used asintegral parts of gas-burning appliances. It presents minimumlevels for the substantial and durable construction, safe operation and acceptable performance for such thermostats.The standard does not apply to wall-mounted thermostats forcomfort heating control.