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60hz or 50hz

60hz or 50hz
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bsadler

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8:23 pm April 3, 2011
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Hi

 

I have recently converted my boat from 110vac/60hz to 230vac/50hz (she was purchased in US but is now in Europe).

 

The a/c units are Dometic Cabinmate VCP-12k and VCP-7k (2 of).

 

The a/c unit are on a separate shore feed from the rest of the boat's systems and are fed via an isolation transfer that can be configured to step the shore power down from 230vac to 110vac.

 

That leaves the question of frequency.

 

I have been told that the units will operate without problem at 50hz but with a 17% reduced capacity. This reduction would be acceptable.

 

Can anyone confirm if this is correct.

 

Thanks

 

Bob
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Steve Pooler

posts 1127

10:24 am April 4, 2011
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Hi Bob~

The information you have posted is the same as we have always been told in the service schools of Cruisair/Marine Air…

The standard US units are 60/50 Hz and will run at 17% reduced capacity (BTU) when on 50 Hz. (motors just run slower)

To regain that 17% of rated capacity a straight 50 Hz unit would be required.

 

I have no 50 Hz experience (always being here in the US) to add much more than that.

 

Steve~ 
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