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Amperage of a 36000 BTU Air Conditioner

Calculating the amperage of a 36000 BTU air conditioner allows HVAC technicians to monitor the performance of the installed system and informs the user about the energy consumption of the equipment. This is useful for evaluating purchase options or estimating electricity bills.

The first step is to understand the SEER parameter of the air conditioner, which measures the energy efficiency of the equipment.

Using the SEER parameter, it is possible to estimate the electrical power consumed by the air conditioner.

SEER101112131415
36000 Btu/h3600W3272.7W3000.0W2769.2W2571.4W2400.0W
SEER1617181920
36000 Btu/h2250W2117.6W2000.0W1894.7W1800W

Applying SEER to Determine the Average Consumption of a 24000 BTU/h Air Conditioner

Don’t know the SEER of your equipment?

Use the following table to approximate the SEER value:

Air Conditioner ClassificationSEER Value
A+++Greater than 22
A++20-21
A+18-19
A15-17
B – CLess than 11.5
A/C that are not inverter-basedVery low efficiency

Table 2: SEER Value According to Air Conditioner Classification

For example, for a 36000 BTU/hour air conditioner with a SEER of 15, the expected average consumption is 2400W.

Since SEER is a parameter that measures air conditioner efficiency under various operating conditions (different condensation temperatures), this does not mean the equipment is always consuming 2400W. Over a longer period, where consumption may fluctuate, the average will be close to the calculated value of 2400W.


Amperage Table for a 36000 BTU Air Conditioner vs. Electric Power

Single-Phase Amperage Table

PhasesPH1PH1PH1PH1PH1PH1PH1
W110 V115 V120 V127 V220 V230 V240 V
180022.73 A21.74 A20.83 A19.69 A11.36 A10.87 A10.42 A
185023.36 A22.34 A21.41 A20.23 A11.68 A11.17 A10.71 A
190023.91 A22.96 A21.96 A20.75 A12.05 A11.57 A11.04 A
195024.55 A23.57 A22.50 A21.26 A12.39 A11.87 A11.35 A
200025.19 A24.18 A23.03 A21.77 A12.72 A12.17 A11.67 A
240030.71 A29.52 A28.33 A26.13 A14.55 A14.35 A14.00 A

Three-Phase Amperage Table

PhasePH3PH3PH3PH3PH3PH3
W220 V230 V240 V380 V400 V440 V
18006.57 A6.28 A6.02 A3.80 A3.61 A3.28 A
18506.75 A6.46 A6.19 A3.91 A3.71 A3.38 A
19006.92 A6.65 A6.37 A4.02 A3.81 A3.47 A
19507.10 A6.84 A6.54 A4.13 A3.91 A3.57 A
20007.28 A7.03 A6.72 A4.24 A4.02 A3.67 A
24008.73 A8.43 A8.04 A5.10 A4.82 A4.40 A

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