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RTHD-SVX01L-EN
Model Number
Nameplates
The Optimus™ unit nameplates are applied to the exterior
of the Control Panel. A compressor nameplate is located
on the compressor. When the unit arrives, compare all
nameplate data with ordering, submittal, and shipping
information.
Unit Nameplate
See Figure 1, p. 6 for a typical unit nameplate. The unit
nameplate provides the following information:
• Unit model and size description.
• Unit serial number.
• Identifies unit electrical requirements.
• Lists correct operating charges of R-134a or R-513A
and refrigerant oil.
• Lists unit test pressures.
• Identifies installation, operation and maintenance and
service data literature.
• Lists drawing numbers for unit wiring diagrams.
Model Number Coding System
The model numbers for the unit and the compressor are
composed of numbers and letters that represent features of
the equipment. Shown in the following table is a sample of
typical unit model number and the coding system for each.
Each position, or group of positions, in the model number is
used to represent a feature. For example, in the first table,
position 08 of the unit model number, Unit Voltage,
contains the letter “F”. An F in this position means that the
unit voltage is 460/60/3.
Unit Model Number
An example of a typical unit model number (M/N) is:
RTHD UB1F XG0U AB1A 2LAL B1A2 LALA VXQX EXAA
AXY1 76DC XT52 XXXX XXH
Model number digits are selected and assigned in
accordance with the definitions as listed in “,”.
Compressor Nameplate
The compressor nameplate provides the following
information:
• Compressor model number. See “Compressor Model
Number,” p. 9.
• Compressor electrical characteristics.
• Utilization range.
• Recommended refrigerant.
Figure 1. Typical unit nameplate
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