Question

10. A one-family dwelling has six 3-kW electric wall heaters (with individual thermostats) and five room air conditioners. Two air conditioners are rated 10.5 amperes at 230 volts, and the others are rated 7.2 amperes at 115 volts. A service calculation is being performed, using the optional method. How many volt-amperes should be included (after demand factors) for the heating and air conditioning? (Assume heater kW ratings equivalent to kVA.)

Name: 10 a one family dwelling has six 3 kw electric wall heaters with individual thermostats and five room air conditioners two air conditioners are rated 105 amperes at 230 volts and the others 80664
Uploaded: 2023-06-18T14:00:49-08:00
Duration: 3 min 20 s
Channel: Adi S
Description: 10 a one family dwelling has six 3 kw electric wall heaters with individual thermostats and five room air conditioners two air conditioners are rated 105 amperes at 230 volts and the others 80664

          10. A one-family dwelling has six 3-kW electric wall heaters
(with individual thermostats) and five room air conditioners. Two
air conditioners are rated 10.5 amperes at 230 volts, and the
others are rated 7.2 amperes at 115 volts. A service calculation is
being performed, using the optional method. How many volt-amperes
should be included (after demand factors) for the heating and air
conditioning? (Assume heater kW ratings equivalent to kVA.)

Added by Evan S.

University Physics with Modern Physics

Hugh D. Young 14th Edition

Instant Answer

Solved by Expert Adi S

06/18/2023

Step 1

Calculate the total heating load: 6 x 3 kW = 18 kW or 18 kVA (since we assume heater kW ratings equivalent to kVA) Show more…

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10. A one-family dwelling has six 3-kW electric wall heaters (with individual thermostats) and five room air conditioners. Two air conditioners are rated 10.5 amperes at 230 volts, and the others are rated 7.2 amperes at 115 volts. A service calculation is being performed, using the optional method. How many volt-amperes should be included (after demand factors) for the heating and air conditioning? (Assume heater kW ratings equivalent to kVA.)