Cruisers Forum
 


Join CruisersForum Today

Reply
 
Thread Tools Rate Thread Display Modes
Old 22-04-2015, 05:50   #1
Registered User

Join Date: Apr 2015
Posts: 2
Cruise Air Thermostat

when we turn on our cruise air ac the thermostat indicates 91 degrees F and then clicks down to about 10 degrees. As the temp clicks past our ac temp setting of 76 degrees the ac stops cooling but fans run and blows room temp air., compressor stops as indicated by amps going to zero on main electrical panel.
__________________

__________________
rspahr is offline   Reply With Quote
Old 22-04-2015, 06:16   #2
Moderator
 
a64pilot's Avatar

Cruisers Forum Supporter

Join Date: Oct 2013
Location: Albany Ga.
Boat: Island Packet 38
Posts: 17,037
Re: Cruise Air Thermostat

I'm not sure I understand if this is a question, a statement or asking if there is a problem. Let me break down what I think you are saying.

1. You turn on the AC and you get a reading of 91. This indicates incoming air temp of 91 and if the AC is in a warm location is exactly normal.

2. After the fan kicks in, soon the temp displayed shows about 81. This is indicating room temp to be 81 degrees, the ten degree drop may be simply from pulling in cooler air into the ac compartment where the thermostat sensor is., This is completely normal.

3. After hitting the set point of 76 degrees, the compressor stops, but the fan continues to run. Again, correct operation, unlike a house AC, a marine AC's fan runs continously.
I assume this is because of the way the thermostat works, a house AC thermostat measures the temp inside of the room, temp sensor is in the thermostat itself.
But a Marine AC measures the temp of the incoming air into the AC unit, the temp sensor is close to the AC unit, not in the box that you think of and call a thermostat, so the only way to measure the air in the room is to have a constant flow.

If I understand correctly, it sounds as if your AC unit is operating correctly
__________________

__________________
a64pilot is offline   Reply With Quote
Old 22-04-2015, 06:31   #3
Registered User

Join Date: Apr 2015
Posts: 2
Re: Cruise Air Thermostat

Thanks so much for your response Sir. But I miss communicated.
We are in the Bahamas. When the unit is turned on the temp in the boat is about 80 to 85 degrees. The thermostat immediately indicates 91 degrees and then begins quickly clicking down to a reading of 10 degrees in about 30 seconds.
__________________
rspahr is offline   Reply With Quote
Old 22-04-2015, 07:18   #4
Moderator
 
a64pilot's Avatar

Cruisers Forum Supporter

Join Date: Oct 2013
Location: Albany Ga.
Boat: Island Packet 38
Posts: 17,037
Re: Cruise Air Thermostat

The temp sensor that displays that temp is where the AC unit is, I bet money it's 91 degrees in there, but when you turn the unit on it starts pulling in air from the boat that is at a lower temp than 91 so you see the temp drop drastically.
I can only guess that Marine units do not have the temp sensor located in what we mistakenly call the thermostat as it's likely to be mounted in some unusual places and wouldn't be nearly as accurate at reading room temp.

What you describe is from what I can tell completely normal operation.

Two things tough as I assume Marine AC is new to you, first try to make sure the raw water strainer stays clean and clear or it will adversely affect your AC, and secondly keep the air filter and evaporator coil clean and make sure the condensate drain is clear. Some people will spray the evaporator with Lysol when they clean the air filter, to try to keep mold from growing, it seems to help and it's real easy to do.
OK that was four things, sorry
__________________
a64pilot is offline   Reply With Quote
Old 22-04-2015, 07:20   #5
Moderator
 
a64pilot's Avatar

Cruisers Forum Supporter

Join Date: Oct 2013
Location: Albany Ga.
Boat: Island Packet 38
Posts: 17,037
Re: Cruise Air Thermostat

You are saying it's 91 to start with, but then quickly drops 10 degrees to a reading of about 81?
__________________
a64pilot is offline   Reply With Quote
Reply

Tags
cruise

Thread Tools
Display Modes Rate This Thread
Rate This Thread:

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


Similar Threads
Thread Thread Starter Forum Replies Last Post
For Sale or Trade: Cruise Air/Marine Air portable A/C unit coltex Classifieds Archive 3 02-03-2013 20:24
For Sale: Cruise Air Split Type Air Conditioner loowigi Classifieds Archive 1 03-09-2012 06:41
For Sale: Cruise Air Split Type Air Conditioner loowigi Classifieds Archive 1 23-08-2012 01:26
For Sale: Cruise air split type air conditioner loowigi Classifieds Archive 2 13-08-2012 05:28
For Sale: Cruise air split type air conditioner loowigi Classifieds Archive 2 14-07-2012 10:04



Copyright 2002- Social Knowledge, LLC All Rights Reserved.

All times are GMT -7. The time now is 04:46.


Google+
Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2017, vBulletin Solutions, Inc.
Social Knowledge Networks
Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2017, vBulletin Solutions, Inc.

ShowCase vBulletin Plugins by Drive Thru Online, Inc.