| [GMCnet] Roof ac [message #347113] |
Fri, 30 August 2019 13:19  |
glwgmc
Messages: 1014
Registered: June 2004
Karma: 10
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Senior Member |
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Unfortunately it is worse than double depending on the head pressure, state of maintenance, and original design the start up draw can be up to five times the running amps. This is a big issue in the world of bus conversions where the goal is to run one or more ac units off of the house battery bank once converted to lithium battery technology. Sometimes you can and some times you can’t.
Jerry Work
Kerby, OR
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Plus a/c systems take almost double the current at start up so your looking at upwards of 30amps then
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Jerry & Sharon Work
78 Royale
Kerby, OR
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| Re: [GMCnet] Roof ac [message #347114 is a reply to message #347113] |
Fri, 30 August 2019 13:55  |
TR 1
Messages: 348
Registered: August 2015
Location: DFW
Karma: -7
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Senior Member |
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I haven't tried these, and they're not cheap, but the Micro-Air Easy Start soft starter seems like a possible solution...
Saw a video a while back where they started a fairly large marine AC system off an inverter with one of these.....
https://www.microair.net/products/easystart-364-3-ton-single-phase-soft-starter-for-air-conditioners?variant=30176048267
glwgmc wrote on Fri, 30 August 2019 13:19Unfortunately it is worse than double depending on the head pressure, state of maintenance, and original design the start up draw can be up to five times the running amps. This is a big issue in the world of bus conversions where the goal is to run one or more ac units off of the house battery bank once converted to lithium battery technology. Sometimes you can and some times you can't.
Jerry Work
Kerby, OR
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Plus a/c systems take almost double the current at start up so your looking at upwards of 30amps then
---------
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Mark S. '73 Painted Desert,
Manny 1 Ton Front End,
Howell Injection,
Leigh Harrison 4bag and Rear Brakes,
Fort Worth, TX
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| Re: [GMCnet] Roof ac [message #347214 is a reply to message #347113] |
Mon, 02 September 2019 12:32 |
mantaman
Messages: 10
Registered: October 2016
Location: Eau Claire, WI
Karma: 0
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Junior Member |
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I put an easy air soft starter on the original Dometic AC unit and now you can barely tell when the compressor starts. Before when the compressor started you thought it was gonna come right through the roof.
1975 eleganza,
3 stainless steel fuel tanks holds 90 gal.,
Thorley headers and 3" SS exhaust pipe,
6 Wheel disc brakes,
Quad airbag system
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