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Identifying your air conditioner

How can I tell which Hoffman or McLean Air Conditioner unit I have?
When was my air conditioner manufactured?

How to read model numbers

Example: G52-1226-G150

G52
12
2
6
G150
1
2
3
4
5

  1. Identifies the family/type of air conditioner and the approximate height (i.e. G52=Global family, apprx. 52 inches high).
  2. This is the air conditioner's capacity in BTU/Hr. at rated conditions (i.e. 12=12,000 BTU/Hr. at 131/131F).
  3. 1=115 Volt, 2=230 Volt, 4=460 Volt.
  4. 6=50/60 HZ or 60 Hz only.
  5. Unique set of numbers for each air conditioner which identifies the accessories on a model (i.e. G150=outdoor model with heat package).


Determining the manufacture date of your Hoffman, McLean air conditioner unit

  • The first two digits of the serial number determine the year of manufacture
  • The two digits immediately following the hyphen in the serial number determine the week of manufacture
  • The example shown below was manufactured in the first week of September in 2010
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