18000 BTU Power Consumption

Calculating how much an 18,000 BTU air conditioner consumes is essential for air conditioning specialists to assess the performance of the installed system. Additionally, the amperage information helps users understand the energy consumption of the equipment, whether to evaluate purchase options or verify electricity bills.

How many watts does a 18000 btu air conditioner use?

The consumption of an air conditioner depends on various factors, including the efficiency of the air conditioner, the thermal load inside the space, the outdoor temperature, and the time that has passed since the equipment was turned on for the first time.

To start, it’s important to know the SEER (Seasonal Energy Efficiency Ratio) parameter of the air conditioning unit, as it measures the equipment’s performance. With the SEER parameter, you can estimate the average electrical power consumed by the air conditioner in watts (W). Note that for non-inverter air conditioners, a SEER value of less than 12 is considered inefficient.

Here’s a table showing the average electrical power consumption based on SEER for a 18000 BTU/h air conditioner:

SEER Average
Power (W)
101800
111636.4
121500
131384.6
141285.7
151200
161125
171058.8
181000
19947.4
20900

How much electricity does a 18,000 btu air conditioner use per hour?

To find the amperage consumption, you can use the power consumption value from the previous table and refer to the following tables based on the type of supply voltage. Here are some sample values:

How many amps does a 18000 btu air conditioner use?

For a single-phase power supply (PH1):

Power (W)110 V115 V120 V127 V220 V230 V240 V
90011.36 A10.87 A10.42 A9.84 A5.68 A5.43 A5.21 A
95011.99 A11.47 A11.00 A10.39 A6.00 A5.74 A5.50 A
100012.63 A12.08 A11.57 A10.94 A6.31 A6.04 A5.79 A

For a three-phase power supply (PH3):

Power (W)220 V230 V240 V380 V400 V440 V
9003.28 A3.14 A3.01 A1.90 A1.81 A1.64 A
9503.47 A3.32 A3.18 A2.01 A1.91 A1.73 A
10003.65 A3.49 A3.35 A2.11 A2.01 A1.82 A

How much power does a 18000 btu air conditioner use?

For example, for an 18,000 BTU/h air conditioner with a SEER of 12, you can expect an average power consumption of 1,500 watts and an average current consumption of approximately 9.47 amperes.

Understanding the amperage and power consumption of your air conditioner can help you make informed decisions about its usage and energy costs.

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