Low voltage thermostats - Study guides, Class notes & Summaries

HVAC Final Exam Electrical For Air Conditioning Questions And Answers 100% Pass When using a low voltage T-stat for heating and cooling, when would there be a jumper between Rh and Rc? Select one: a. When using a single transformer system b. When heating with an oil boiler c. When heating with a gas boiler d. When using a two transformer system - answerA) When Using a single transformer system Digital thermostats usually display temperature, time of day, programming and operating statu...

Nate Ac Service Test Exam Questions With Accurate Solutions. A technician has determined a supply in a flexible duct system is leaking. What should be checked? - answerAll connections inner and outer layers. Electronic air cleaners can operate with internal voltages as high as? - answer5000v Why do some electromechanical type thermostats require connections to both the hot side and common side of the low voltage transfromer - answerDisplay lights must be powered using both sides of the li...

What is the first thing a tech should do when arriving at a no combustion call? - AnswerAsk how many times the customer reset the unit. What is the best long term solution for preventing a clogged nozzle? - Answer- -Remove any underground storage tanks. -Install a quality oil filter. -Cut the suction line 10" above the tank outlet to prevent sludge. Hot water and steam valves are interchangeable. - Answer- False When in the presence of a flame, a cad cell normally reads.. - Answer- 300-10...

NATE Air Conditioning and Heat Pump Exam Questions and Answers Updated (GRADED A+) 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 load. - ANSWER- +25% The combined output of a heatpump and its auxiliary heat should not exceed the calculated heat loss of a home by more than ____%. - ANSWER-15% What amount of auxiliary electronic heat is needed when the output of a heat pump on a design d...

Residential Inspection for Real Estate Agents SAE Exam - Questions and Answers Bricks are laid on the front part of the foundation known as the ________. Wall ties ________ brick is made of sun-dried earth and straw. Adobe The screen at the bottom of the stucco wall, called a ________, must be kept free of debris so the wall can properly drain moisture. Weep Screed Bricks are attached to the sheathing by metal strips called Brick ties According to the TREC Minimum Requirements for Structural S...

HVAC Final Exam Electrical For Air Conditioning 2024 Questions With Complete Solutions!!

UNIT 14 AUTOMATIC CONTROL COMPONENTS AND APPLICATIONS QUESTIONS AND ANSWERS WITH SOLUTIONS 2024 The control voltage that is typically used in split type residential central air conditioning systems is - ANSWER 24 v What device is used to produce the control voltage that is used to power the control circuits of a split type residential central a/c system - ANSWER Step down transformer All of the following are true statements regarding line voltage thermostats and control wiring except? - A...

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...

A technician has determined a supply in a flexible duct system is leaking. What should be checked? - All connections inner and outer layers. Electronic air cleaners can operate with internal voltages as high as? - 5000v Why do some electromechanical type thermostats require connections to both the hot side and common side of the low voltage transfromer - Display lights must be powered using both sides of the line the continuity reading on a functional fuse will be - 0 ohms a compress...

Professional Home Inspector Exam NHIE / TREC Questions and Answers Already Passed Document Content and Description Below Professional Home Inspector Exam NHIE / TREC Questions and Answers Already Passed The inspector is not required to determine ____ ___ of any system or component. -Years of age -Life expecta ncy -Make model Horizontal waste pipe should slope ____ inch per foot 1/4" per foot if < 3 inch pipe. 1/8" per foot if > or = to 3 inch pipe Drip screed Also called weep screed. U...