Heat anticipator - Study guides, Class notes & Summaries

HVAC Exam Questions with Correct All A An electric heating unit in a duct system is classified as a - Answer-forced draft convector Radiant heat is transferred by? - Answer-infrared rays The limit switch is used on the electric element assembly to - Answer-open the circuit to the element if the furnace overheats Technician "A" says that a fusible link can be jumped out temporarily to allow the customer to get heat until the next business day. Technician "B" says that if the fuses...

HVAC NATE Heat Pump Exam Questions With Correct Answers Updated 2024/2025 (Graded A+) What is the primary purpose of using flux when soldering copper or brass parts? -Ans Prevent Oxidation The water that results from a defrost cycle of an air to air heat pump(runoff) must? -Ans Drain off and away from the outdoor coil. Why must the runoff be drained off and away from the outdoor coil? -AnsExcessive ice can build up on the bottom of the coil and can reduce capacity. What is the component th...

When a water regulating valve is used to control the head pressure of a water-cooled system, the valve's spring is acting against which pressure to modulate the water flow? - ANSWER Head pressure of the system To prove that the combustion blower motor is operating before ignition, a ______ would be used. - ANSWER Sail switch The difference between system overshoot and system lag is called? - ANSWER Temperature swing The purpose of a heat anticipator is to_____. - ANSWER Reduce the temp...

NATE Air Conditioning and Heat Pump Exam Questions and Answers Updated (GRADED A+) Which of the following factors affects a customers level of comfort? - ANSWER-All of the above A cooling load calculation estimates the sensible heat gain of the structure. The coolingonly system should be within _____% of this calculated value. - ANSWER-+15% The maximum sensible cooling capacity of a heat pump should be within ______% of the calculated sensible heat gain of a structure with a large heating l...

Before working on an electric furnace the tech should - ANSWERReview diagram, remove jewelry, and follow safety procedures. ALL OF THE ABOVE. A GFCI circuit breaker - ANSWERdetects current leaks to groound the conductor in an electric heat element is usually made of - ANSWERNichrome An example of resistive load is - ANSWERcrankcase heater an example of an inductive load is - ANSWERmotor an electric furnace is marked 208/230 single phase 60Hz A tech reads 200 vac at the power suppl...

To control ice build-up on a heat pump outdoor coil in the heating cycle, a ____ is attached to a large diaphragm. - ANSWER Microswitch The heater in the thermostat control circuit in the cooling mode is active when the - ANSWER Cooling contact is open If the suction pressure of a system is 60 psi and the oil pump is 85 psig, what is the net oil pressure? - ANSWER 25 psig What is meant by the term "detent" ? - ANSWER opening or closing of a contact The heat anticipator in the therm...

A fuse is used in an electrical circuit to Protect the circuit wires from an overcurrent condition How are fuses rated In amps with a maximum voltage rating What will an ohmmeter measure when testing an open fuse Infinite resistance What type of sensing element is commonly found in fan and limit controls Bimetal What is used to sense space temperature in electronic temperature controls Thermistors What is known about a liquid-charged remote-type temperature control Its bulb is bot...

Massachusetts oil burner study guide Accurate 100% What determines the gallons per hour of a nozzle - ANSWER Manufacturer ,the bore size, pump pressure or Orphus What is a series circuit - ANSWER an electrical or piping circuit where all of the current or fluid flows through the entire circuit What is a degree day - ANSWER The average temp for the day - 65 What is the flash point of number 2 fuel oil - ANSWER 115 degrees Fahrenheit When does the law require a combustion efficien...

Heat Anticipators correct answers Are wired in series Cooling anticipators correct answers Are wired parallel Low pressure switches detects correct answers a loss of refrigerant Low pressure switches de energizes correct answers the compressor Electronic air cleaners do not correct answers remove odors Electronic air cleaners normally are correct answers 4000 to 8000 dc volts Air handlers above a ceiling have to have correct answers a secondary pan Latent heat correct answer...

1. A gas furnace is to be installed in a garage. The burners and ignition sources must be located ______ above the floor. A: 6 inches B: 12 inches C: 18 inches D: 24 inches - C: 18 inches 2. A good description of how hi-metai fan switch operates the blower motor on a gas furnace is: A: temperature on - time off. B: temperature on - time on. C: temperature on- temperature off. D: time on - time off. - C: temperature on- temperature off 3. Redundant gas valves used on gas furnaces will ...