Electric Heat ESCO - HVAC Excellence Exam | 100% Correct Answers | Verified | Latest 2024 Version

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 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 - 13,800a furnace is using 15,500 watts approx Kw - 15.5 Kw a sequencer timer use _____ to close the contact points to the heater element - heated snap-discs or bi-metal strips an electric furnace heating thermostat must - open on rise