Help Calculating Hourly Watt Usage

How do I go about calculating the *estimated* watts this combo would burn running for an hour straight in air conditioning mode?

4A7A4030L1000A American Standard Silver 14 2.5 ton
S8B1B060M3PSABA American Standard blower/furnace

Thanks,
HIT

source https://hvac-talk.com/vbb/threads/2228744-Help-Calculating-Hourly-Watt-Usage?goto=newpost