Carrier 17 Start Up & Operation Manual page 5

NIH — Nozzle-In-Head
*Motors beginning with ''E'' and open drive motors (FA-JD) cannot be used with size 51-89 or 421-469 compressors.
†Open-drive motor codes:
UNDERWRITERS'
LABORATORIES
CANADA
ASME
'U' STAMP
MODEL NUMBER NOMENCLATURE
SERIAL NUMBER BREAKDOWN
Fig. 1 — 17/19EX Identification
5
UNDERWRITERS'
LABORATORIES
ARI (Air Conditioning
and Refrigeration
Institute)
PERFORMANCE
CERTIFIED
(60 Hz Only)