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Old 08-23-2013, 08:16 AM   #1
2 Rivet Member
Tdcraw's Avatar
1974 31' Sovereign
Yukon , Oklahoma
Join Date: Jun 2012
Posts: 71
Norcold 641

Does anyone have the Norcold 641? Looking to replace my RM77 that I can't find a new cooling unit for. Like that I can get this in a 3 way but would like some use experience if anyone has any.

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Old 08-23-2013, 08:39 AM   #2
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1994 30' Excella
alexandria , Kentucky
Join Date: Aug 2004
Posts: 1,740
Images: 3
In my previous trailer and present trailer both had the N641 Norcold units. (2 way) So far they have worked as expected. I would purchase another one. I wouldn't bother with the 3 way unless you had a fancy solar system to recharge the batteries.
I have found the efficiency is better after I placed a small battery operated fan on the interior and on days when it gets very hot 90+ degrees I place a small fan in the rear.
The automatic switch over from elec to gas has worked flawlessly.
My only complaint is that the previous owners should have installed the N841 instead.

Steve, Christy, Anna and Phoebe (Border Collie)
1994 Classic 30'11" Excella - rear twin
2009 Dodge 2500, 6 Speed Auto, CTD, Quad Cab, Short Bed
Hensley with adjustable stinger
WBCCI # 3072
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Old 08-23-2013, 09:31 AM   #3
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1974 31' Sovereign
Yukon , Oklahoma
Join Date: Jun 2012
Posts: 71
Thanks. I too thought about the 841 but it looks to be to tall for the space. We are going to pull old one out this weekend and will double check the measurements. The 3 way is for the drive. I know a lot of people do pull with propane on but I don't. I respect that my airstream is nearly 40 and joints may fail. I know my joint are. I also have seen a tire blown out on another airstream and the damage was enough it would have hit my line and it would be damaged.
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