14
1.10 Motor-Compressor Selection
When selecting any compressor, proper allowance
should also be made for abnormal conditions that may
result in motor overloading. These conditions might
include high suction temperature during pulldown or
low voltage at compressor motor terminals.
During pulldown, the compressor cannot be subjected to
loading rates higher than the maximum kW shown in the
electrical data tables for more than short periods of
time. Where an extended pulldown period is expected,
the suction pressure must be limited by some positive
means especially in refrigeration applications where
motor overloading is more likely during pulldown
conditions.
1.11 Outdoor Use
All UL recognized 06D and 06E compressors have termi-
nal enclosures with corrosion protection specified that is
suitable for outdoor use equipment as a sole enclosure.
The 06D drawn steel terminal boxes used on 2 cylinder
06D compressors do not require any caulking for sole
outdoor use, and are UL recognized as “Equal Alternate”
to all caulked boxes previously used. Drawn steel boxes
are available only for units requiring zero to two
overloads.
1.12 Code Approvals
The 06D/E, 60 hertz compressors are UL recognized and
CSA approved. Both the UL recognition and the CSA
approval are covered in the UL File shown below, due to
harmonized codes between the United States and
Canada. The compressor certification is under UL 984 in
the U.S. and under CSE Standard C22.2 No. 140.2-96 in
Canada. All 06D/E 50 and 60 hertz compressors manu-
factured in Syracuse are ISO 9002 registered. The 06D/E
code approvals are shown in the following files:
UL File# - SA4936
CSA File# - SA4936
ISO 9002 Certificate #A2899 (Carlyle - Syracuse)
06D and 06E compressors comply with the CE Mark
requirements and will have the CE Mark logo added to
the appropriate compressor nameplates. Effective
May 29, 2002, all pressure equipment marketed and
installed into service within the European Union must
comply with the requirements imposed by the European
Pressure Directive (PED) 97/23/EC. There are certain
exclusions from compliance with this directive. The
mechanical design of Carlyle 06D and 06E semi-hermet-
ic compressors provides for exclusion from the scope of
the PED based on criteria indicated in Article 1,
Paragraph 3.10 of the directive.
1.13 Compressor Wiring Procedures
It is important that 06D and 06E compressors be prop-
erly wired and all electric connections are properly
tightened. Carlyle Bulletins 98T-1 and 03T-1 should be
reviewed and recommendations followed.
In addition most 06D OEM model compressors are sup-
plied with overload relays in the compressor terminal
box for overcurrent protection. All of these overloads
have 1/4" quick connect terminals for customer control
circuit and / or power connections. It is important that
properly sized quick connect terminals be used when
connecting to the overload terminals. Carlyle recom-
mends the 1/4" electrical connectors be selected so they
can withstand a 4 lb pull load before they begin to sepa-
rate. Flag style connectors also generally allow for easier
installation due to the orientation of the overloads in the
terminal box.
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