4 TWA-SVX01A-EN
Model Number Description
All products are identified by a multiple-
character model number that precisely
identifies a particular type of unit. An
explanation of the alphanumeric
identification code is provided below. Its
use will enable the owner/operator,
installing contractors, and service
engineers to define the operation,
specific components, and other options
for any specific unit.
When ordering replacement parts or
requesting service, be sure to refer to
the specific model number, serial
number, and DL number (if applicable)
stamped on the unit nameplate.
Split System Condensing Unit Model Nomenclature
T W A 0 9 0 A 1 0 0 E A
1 2 3 4 5 6 7 8 9 10 11 12
Digits 1, 2, 3 - Product Type Digit 8 - Electrical Characteristics
TWA = Split System Heat Pump 3 = 208-230/60/3
Outdoor Unit 4 = 460/60/3
W = 575/60/3
Digits 4, 5, 6 - Nominal Gross Cooling Capacity (MBh)
D = 380-415/50/3
90 = 90 MBH
120 = 120 MBH
Digit 9, 10 - Factory - Installed Options
180 = 180 MBH
240 = 240 MBH 00 = Secondary Capacity and/or
Factory installed Options
Digit 7- Major Development Sequence Digit 11- Minor Design Sequence
Digit 12- Service Digit
Model Number Description
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