Split System Heat Pump Wiring Diagram Quiz

What should be done before servicing the Split System Heat Pump?

• Connect to 24 vac/40va/class 2 circuit

• Disconnect all power

• Use copper conductors only

• Check unit rating plate

Which type of conductors should be used for supply connections?

• Aluminum

• Copper

• Steel

• Plastic

What is the maximum voltage suitable for systems mentioned in the notes?

• 100 volts

• 150 volts

• 200 volts

• 250 volts

For replacement wires, what temperature rating should they be suitable for?

• 60°C

• 75°C

• 90°C

• 105°C

What should be checked for amperities and overcurrent protection?

• Wiring diagram

• Unit rating plate

• Control circuit

• Defrost control board

What is the function of the CCH in the wiring diagram?

• Compressor

• Contactor Coil

• Crankcase Heater

• Control Circuit

Tags

NGSS.HS-PS2-5

What does the abbreviation 'ODT' stand for in the wiring diagram?

• Outdoor Thermostat

• Overcurrent Device

• Output Device

• Outdoor Defrost Timer

What is the rating for closing during defrost?

• 1 Amp Max

• 2 Amp Max

• 3 Amp Max

• 4 Amp Max

What is the delay time provided when 'Y' is off?

• 3 minutes

• 4 minutes

• 5 minutes

• 6 minutes

What happens when DFT is closed and 'Y' is closed?

• Compressor pressure is accumulated

• Defrost cycle starts

• Outdoor fan motor stops

• Control circuit is activated

Tags

NGSS.HS-PS3-4