Need help with age and tonnage of old Carrier A/C's
I have a commercial building with three large 3-phase rooftop Carrier A/C units. I know that the units are old, I was hoping someone could help me determine HOW old the units are, and what is their respective tonnage?
Unit # 1 Serial # J497930, Mod. # 50DD016400EA
Unit # 2 Serial # K408587, Mod. # 50DA008410
Unit # 3 Serial # F496342, Mod. # 50DQ016400
Are these heat pumps, or are they electric heat?
Thank you for any help you can provide.
A-M = Jan-Dec 1969-1979
N-Z = Jan-Dec 1980-1990
the first letter lands those in the 70's, the number following is the exact year. so those were born in 1974. i'm not sure about the model numbers but those things are 33 years old and i'd invest in dynamite.
Serial #'s seem to be covered, model #'s are Pkg AC/Elec heat I think, #1 & #3 are 15 ton rated and #2 is 7.5 ton rated, all are 208 VAC 3-phase.
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Thank you both for your help. This is a wonderful forum and you provide a great service!
Thank you for the link you posted. Unfortunately, I am not able to see what it is! When I click on the link I get a bulletin board message stating "You do not have permission to access this page..." Moderators- some help please?
This is what the link takes you to:
Carrier Unit Tonnage
001 1 ½ Ton
002 2 Ton
003 2 ½ Ton
004 3 Ton
005 4 Ton
006 5 Ton
007 6 Ton
008 7 ½ Ton
009 8 ½ Ton
012 10 Ton
014 12 ½ Ton
016 15 Ton
024 20 Ton
028 25 Ton
030 27 Ton
034 30 Ton
044 40 Ton
054 50 Ton
064 60 Ton
074 70 Ton
084 80 Ton
094 90 Ton
104 100 Ton
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Thank you Oldertech!
Originally Posted by Creia
#1 & #2 are cool only RTU'S with optional electric heat. #3 is a heat pump RTU, although it could have supplemental electric heat strips installed
Thank you superfittertech!