Aircon compressor unit

[ian w]

I need to buy a new 6k compressor unit for the split system in my 53 my mid cabin
Where to go?

 

[SKYCHENEY]

How about this used 6k self contained unit? Its cheap. Buy it for the compressor and toss the rest of it.

https://www.ebay.com/itm/1450850639...L7g1UDlI17ZNhh+b6jUdLIdNIN|tkp:Bk9SR-Kxl6ifYg


OR this unit but it's 220v.

https://www.ebay.com/itm/1447449196...XgOH/mrUj9Wduke4kzsQjKjw==|tkp:Bk9SR-Kxl6ifYg

 

[cww]

That brings up a good question. Are the ac's in these boats 220 or are they 120?

 

[jim rosenthal]

Depends on the size boat. My 36C has 117vac units. Larger Hatteras yachts had 240vac units.

 

[SKYCHENEY]

Depends on the size boat. My 36C has 117vac units. Larger Hatteras yachts had 240vac units.

Depends on the size of the compressor too.

Mine are one 6k 120v, one 10k 240v, one 16k 240v, and one 36k 240v.

 

[Bernd1972]

How do I figure out the voltage of these aircons, except for following the wiring? I´m currently rewiring pretty much everything and have yet to start touching the AC systems. Any labels on the units with detailed informations? Old Cruisair but have to assume they´re working. they were during seatrial when I bought the boat. No idea how and where the owner´s technician switched them active back then. Electrics are chaotic and modified to death on my boat, have to clean it all up.

 

[Boatsb]

I'd question the wisdom of rewiring yourself. If your not sure how to check a unit voltage its probably ot a job your able to take on.

I constantly find issues with "updated" systems done by owners and even some "self appointed professionals ". It's amazing more of these boats haven caught fire.

A savior on many of the vessels is the updated dock power requirements and ELCI breakers but once on generator power that protection is gone .

Also keep in mind the inlets, fuses and shore cards age and cause problems too.

 

[bostonhatteras]

How do I figure out the voltage of these aircons, except for following the wiring? I´m currently rewiring pretty much everything and have yet to start touching the AC systems. Any labels on the units with detailed informations? Old Cruisair but have to assume they´re working. they were during seatrial when I bought the boat. No idea how and where the owner´s technician switched them active back then. Electrics are chaotic and modified to death on my boat, have to clean it all up.

Electrical issues are the #1 cause of boat fires. If your boat is 30 amp 125 volt shore power then you can't have 220 volt air conditioning because you don't have two hot legs out of phase which is how 220 v motors operate. A 220 v air conditioner circuit breaker will be a double breaker to disconnect both out of phase hot legs simultaneously. A 110 v unit will have a single circuit breaker.

 

[Pascal]

How do I figure out the voltage of these aircons, except for following the wiring? I´m currently rewiring pretty much everything and have yet to start touching the AC systems. Any labels on the units with detailed informations? Old Cruisair but have to assume they´re working. they were during seatrial when I bought the boat. No idea how and where the owner´s technician switched them active back then. Electrics are chaotic and modified to death on my boat, have to clean it all up.

If you can’t find a label on the evaporator or the condenser, Locate the wires coming from the panel, likely in the control box and check the voltage there. Only way to be sure. On the earlier boats like mine, they were all 120v

Also, the circuit breaker will be single if 120 and double pole if 240. ASSuming nobody got creative at some point and crazy enough to use a single pole breaker for a 240 unit. But who knows …

 

[Scarlett]

Good comments except some of the boats, like mine use double pole breakers on 110 volt circuits as well as 220 volt circuits. Best to try to find the label on the unit, if it is still intact it clearly states the voltage as well as the BTU rating.

 

[rwaldrop13]

Just FYI, I actually yanked the original Crusairs aboard Pau Hana and bought 3 new stand-alones. All 220V, ran new hoses, wiring. Unfortunately MarineAire in Ft Lauderdale had a 50% success rate, since the second unit I bought from them had multiple electrical issues, and never worked. They refused to honor their warranty on a brand new unit. The one from Mermaid Manufacturing here in Fort Myers was trouble-free and actually outperformed the MarineAire unit that did work. I'd still go the new-unit route, biggest challenge I had was a defective unit and legal issues with MarineAire - don't buy from them.