To calculate the number of units consumed by an air conditioner in 1 hour, you need to know the power consumption of the unit in watts rather than the current (amperes) and voltage. However, we can calculate the power consumption using the given current and voltage values.
Power (in watts) = Current (in amperes) x Voltage (in volts)
Power = 8 amperes x 220 volts = 1760 watts
Now, to calculate the number of units consumed in 1 hour, you need to convert the power consumption from watts to kilowatt-hours (kWh).
Energy (in kilowatt-hours) = Power (in watts) x Time (in hours) / 1000
Energy = 1760 watts x 1 hour / 1000 = 1.76 kilowatt-hours
Therefore, the 1.5-ton AC will consume approximately 1.76 units in 1 hour of operation.