An electric control is shown adapted for use with gas furnaces which controls fan motors, ignition controls and a gas valve based on inputs from a room thermostat, limit switches, a flame probe, a flame roll-out probe, and a condensate sensor. A roll-out detection circuit utilizing flame ...
Test high limit switch Test fan limit control Check flue pipe and make sure it is venting properly Test operation of gas valve Test all safety switches Check amperage draw on blower motor If you have a boiler, we will test the following: Aquastat relay Circulator pump Zone valves Pressure re...
aFor reasons of explosion prevention, plug connections such as on valves, limit switches, etc. must 为爆炸预防、插座连接例如在阀门,限位开关等等的目的。 必需[translate] aphu nu la nguoi giu lua trong nha phu nu la nguoi giu lua trong nha[translate] ...
aDoors opening into these areas must be equipped with limit switches that have a locking function 正在翻译,请等待... [translate] athe fillet diameter, at least two tools will be needed 内圆角直径,至少二个工具将是需要的[translate] a[3]Describe a recent development in the Investment Banking in...
aDoors opening into these areas must be equipped with limit switches that have a locking function 正在翻译,请等待...[translate] aI need one more stamp before my collection will be completed 在我的汇集将完成之前,我更需要一张邮票[translate] ...
aFor reasons of explosion prevention, plug connections such as on valves, limit switches, etc. must 为爆炸预防、插座连接例如在阀门,限位开关等等的目的。 必需[translate] a全域 閉鎖した地域[translate] a他是我个人的朋友 He is the friend of mine[translate] ...