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6.2 — Identification
A compressor with smart unloading heads can be identified
by a “Y” in the customer model number note on the com-
pressor nameplate. Additionally, a smart unloading cylinder
head can be identified by a “horizontal line” stamped on
the cylinder head.
Compressors applying a PWM Valve installed in the suc-
tion line of the compressor will not
have a “Y” in the cus-
tomer model number or any marking on the cylinder heads.
The compressor should be a factory standard compressor
with no unloading heads.
Model Family Model Number Change Example
06D semi-hermetic Insert “Y” for 13th digit 06DR3370DA36YA
06E semi-hermetic Insert “Y” for 5th digit 06ERY7530A
Fig. 31 — SMART Controller
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