Engineering, 15.04.2020 23:48 donnafranks2003
Troubleshooting Challenge 410A
bumity is 60.7%
Indoor dry bulb temp 80°F Indoor wet bulb temp 70°F
Refrigerant R410A
Outdoor ambient temp 89°F hot
Suction line temp 75°F
Liquid line temp 128ºF
Actual Condensing pressure 485 PSIG (131.1 °F)
Actual Evaporator pressure 144 PSIG (50.33 °F)
Diagnose the problem (Only one)
Low Evaporator Airflow (Low load)
Refrigerant Undercharged
Refrigerant Overcharged
High heat load (High Indoor Temperature or Leak in return duct)
Answers: 2
Engineering, 04.07.2019 18:10
Acompressor receives the shaft work to decrease the pressure of the fluid. a)- true b)- false
Answers: 3
Engineering, 04.07.2019 18:10
Thermal stresses are developed in a metal when its a) initial temperature is changed b) final temperature is changed c) density is changed d) thermal deformation is prevented e) expansion is prevented f) contraction is prevented
Answers: 2
Engineering, 04.07.2019 18:10
The thermal expansion or contraction of a given metal is a function of the f a)-density b)-initial temperature c)- temperature difference d)- linear coefficient of thermal expansion e)- final temperature f)- original length
Answers: 2
Engineering, 04.07.2019 18:10
Manometers are good examples of measuring instruments, nowadays they are not as common as before. a)-capacitive probe gauges b)-gravitational gauges deformation ) gauges d)-digital gauges
Answers: 1
Troubleshooting Challenge 410A
bumity is 60.7%
Indoor dry bulb temp 80°F Indoor wet bulb...
bumity is 60.7%
Indoor dry bulb temp 80°F Indoor wet bulb...
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