Fridge and inverter, can I do this?
Ok, so I have been reading posts about people who changed out their fridges to residential ones. I too did this a couple years ago and the fridge always worked fine on my modified wave inverter. How...
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You are in luck as I recently installed a 21 cu ft Whirlpool refer here and the 6.5 is the start up amps. I did a test run on battery power (500 AH) with my 1000W PSW inverter and at the start with 13.2V my inverter was drawing 7.5 Amps as the battery voltage dropped the amps increased to 8.3 at 12.4 V. At one point the amps jumped up to 22 and I'm wondering what's going wrong:h ... it was heating the ice tray to harvest the ice. :B So running it's drawing 100 Watts and even times 4 for startup... a 500W inverter would do. I wanted to power my Sat receiver and a DVR too so I went with a 1000W. I installed it's own battery bank mainly to get more charging amps while running the generator. I looked into upgrading my inverter to a 3000W PSW but between the price and the control cable not having enough wires I could add a separate system for less money.
Even figuring a 75% duty cycle (18 hours run time) that's aprox 144 AH/day so almost two days before needing to recharge. I tried setting the inverter to power down when not needed, but it will not power back up so when waiting to go to work it draws 0.7 amp. I left the door open so I could see how many amps it took to start the compressor... 32 very briefly so a 500W PSW inverter would be big enough.
Even figuring a 75% duty cycle (18 hours run time) that's aprox 144 AH/day so almost two days before needing to recharge. I tried setting the inverter to power down when not needed, but it will not power back up so when waiting to go to work it draws 0.7 amp. I left the door open so I could see how many amps it took to start the compressor... 32 very briefly so a 500W PSW inverter would be big enough.
