In Figure 39-34, what happens when the defrost relay DR is energized?
What will be an ideal response?
DR NO contacts energize the RVS to put the unit into cooling mode. Another DR NO contact energizes the HS1 coil to bring on the strip heat. The DR NC contacts break the circuit to the outdoor fan motor, turning it off.
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?The first service and checkup is recommended at _____ miles after an engine rebuild.
What will be an ideal response?
Labco Scientific sells high-purity chemicals to universities, research laboratories, and pharmaceutical companies. The company wants to invest in new equipment that will reduce shipping costs by better matching the size of the completed products with the size of the shipping container. The new equipment is estimated to cost $450,000 to purchase and install. How much must Labco save each year for 3 years in order to justify the investment at an interest rate of 10% per year?
What will be an ideal response?
For ungrounded systems, equipment grounding conductor connections are required to be made in accordance with which of the following statements?
A. The equipment grounding conductor is bonded to the ungrounded service conductor. B. The equipment grounding conductor is bonded to the grounding electrode conductor. C. The equipment grounding conductor is bonded to the grounded service conductor and the grounding electrode conductor. D. The equipment grounding conductor is routed back to the utility transformer, where it is connected to the neutral.
The clock spring electrical connector:
What will be an ideal response?