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Geazy Geazy
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Posts: 534
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6 years ago
Across which thermostat subbase terminals should a jumper be placed to check indoor fan operation?
 
  a. R to C
  b. R to Y
  c. R to W
  d. R to G


[Ques. 2] A thermostat terminal labeled W 2 controls _____.
 
  a. a heat pump's compressor
  b. a second stage of heat
  c. a heat pump's reversing valve
  d. the first stage of heat


[Ques. 3] How is a lockout relay in a control circuit reset?
 
  a. Press a button on the relay
  b. Automatically after system pressures equalize
  c. Interrupt control circuit power
  d. Automatically after 2 to 5 minutes


[Ques. 4] The system condition that may cause a compressor motor's overload device to open is a(n) _____.
 
  a. dirty condenser coil
  b. dirty evaporator blower
  c. insulated suction line
  d. frozen evaporator coil


[Ques. 5] Refrigerant migration into the compressor crankcase will not usually occur if the temperature where the
  compressor is located is kept well above the _____.
 
  a. height of the evaporator
  b. height of the condenser
  c. temperature of the thermostat
  d. temperature of system piping and components
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AnnahindranceAnnahindrance
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6 years ago
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Geazy Author
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6 years ago
This calls for a celebration Person Raising Both Hands in Celebration
jasonbourne
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Yesterday
Brilliant ツ
TAT1238
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2 hours ago
Smart ... Thanks!
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