4
© 2016 Emerson Climate Technologies, Inc.
AE4-1303 R15
Introduction
The 7 to 15 ton ZR*KC and ZP*KC Copeland
Scroll
™
compressors are designed for a wide variety
of light commercial air-conditioning, heat pump, and
chiller applications. This bulletin describes the operating
characteristics, design features, and application
requirements for these compressors.
For additional information, please refer to the
online product information accessible from the
Emerson Climate Technologies website at
Copeland Scroll compressor are described in
Figure
1
of this bulletin.
The ZR*KC and ZP*KC scrolls outlined in this bulletin
range in size from 84,000 to 190,000 Btu/hr (24.6
to 55.7 kW) and 90,000 to 182,000 Btu/hr (26.4 to
53.3 kW) respectively. These models include all of
the standard 50 and 60 Hertz three phase voltages.
Compressors in this size range include a number of
features outlined in
Table 1
below.
Nomenclature
The model numbers of the Copeland Scroll
compressors include the approximate nominal 60
Hz capacity at standard operating conditions. An
example would be the ZP90KCE-TFD, which has
90,500 But/hr (26.5kW) cooling capacity at the AHRI
high temperature air conditioning rating point when
operated at 60 Hz. Note that the same compressor
will have approximately 5/6 of this capacity or 74,500
Btu/hr (21.8kW) when operated at 50 Hz.
Application Considerations
The following application guidelines should be
considered in the design of a system using ZR*KC and
ZP*KC scroll compressors. Some of this information
is recommended, whereas other guidelines must be
followed. The Application Engineering department will
always welcome suggestions that will help improve
these types of documents.
Operating Envelope
NOTICE
It is essential that the glide of R-407C is carefully
considered when adjusting pressure and
superheat controls.
Figure 2
illustrates the operating envelopes for
the ZR*KC and ZP*KC compressors with R-22/R-
407C/R-134a and R-410A respectively. The operating
envelopes represent operating conditions with 20F°
(11K) superheat in the return gas. The steady-state
operating condition of the compressor must remain
inside the prescribed operating envelope. Excursions
outside of the envelope should be brief and infrequent.
Use of refrigerants other than R-22, R-407C, or R-134a
with ZR*KCE and R-410A with ZP*KCE voids the
compressor UL recognition.
Internal Pressure Relief (IPR) Valve
WARNING
A high pressure control must be used in all
applications.
These models of Copeland Scroll compressors do not
have internal pressure relief valves.
To ensure safe
operation, a high pressure control must be used in
all applications.
Table 1 – Copeland Scroll
™
Family Features
Model
Application
IPR
Valve
Discharge
Temperature
Protection
(ASTP)
Quiet
Shutdown
Discharge
Check
Valve
Motor
Protection
Electrical
Connections
1
A/C
Heat
Pump
ZR84-144KCE-TF*
Yes
Yes
No
Yes
Yes
Yes
Internal
MP, TB
ZR160-190KCE-TE/W*
Yes
Yes
No
Yes
Yes
Yes
Module
TB
ZP90,103,120,137KCE-TF* Yes
Yes
No
Yes
Yes
Yes
Internal
MP, TB
ZP154-182KCE-TE/W*
Yes
Yes
No
Yes
Yes
Yes
Module
TB
*
Last Character In Voltage Code (5 = 200/230-3-60, 200/220-3-50; D = 460-3-60, 380/420-3-50; E = 575-3-60; 7 = 380-3-60)
1
MP = Molded Plug, TB = Terminal Block & Ring Terminals
