Electric Heat ESCO - HVAC Excellence Exam Questions & 100% Verified Answers | Latest Update | Already Graded A+

Before working on an electric furnace the tech should : Review diagram, remove jewelry, and follow safety procedures. ALL OF THE ABOVE. A GFCI circuit breaker : detects current leaks to groound the conductor in an electric heat element is usually made of : Nichrome An example of resistive load is : crankcase heater an example of an inductive load is : motor 2 | P a g e an electric furnace is marked 208/230 single phase 60Hz A tech reads 200 vac at the power supply and determines : the voltage is too low voltage imbalance between any leg of 3 phase power supply may not exceed : 2% the limit switch on an electric furnace is a : Automatic reset switch the sequencer timers on electric heater will usually energize the 1st heating element after a time delay of : 1 to 30 sec the amount of btus produced by 1 watt of electricity is : 3.413 btus a tech reads 60 amps with a clamp on amp meter on a forced air furnace. the supply voltage is 230 volts AC, approx how many watts is the furnace using : 13,800 a furnace is using 15,500 watts app