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CAUTION
Overheating! Bearing damage! Do not operate
compressor without refrigerant charge or without it being
connected to the system.
WARNING
Contact with POE!
POE may cause an allergic skin reaction and must
be handled carefully and the proper protective
equipment (gloves, eye protection, etc.) must be
used when handling POE lubricant. POE must not
come into contact with any surface or material that
might be harmed by POE, including without
limitation, certain polymers (e.g. PVC/ CPVC and
polycarbonate). Refer to the Safety Data Sheet
(SDS) for further details.
2. Product Description
These application guidelines deal with vertical single
Copeland
Scroll
compressor
ZB09KAU, ZB10KAU and ZB11KAU.
2.1. Nomenclature
The model designation contains the following technical
information about the standard compressors:
2.2. Application
2.2.1. Qualified refrigerant and oil
Compressors
Qualified refrigerant
Low, Medium Temp Oil
Refer to Emerson Accepted Refrigerant List
for more options or details.
© 2018 Emerson Climate Technologies, Inc.
models
ZB07KAU,
ZB07KAU, ZB09KAU,
ZB10KAU
R-290
POE68B (Hatcol 4467)
93-11
2.2.2. Maximum
Pressures
The Maximum Allowable Operation Pressure are the
pressure values at the high- and low-pressure sides up
to which it is safe to operate the compressor. Safety is
established in compliance with the relevant standards
applicable to the given product
Maximum Allowable Operation
Compressor
High-pressure
ZB07KAU
to ZB11KAU
2.2.3. Application limits
CAUTION
Inadequate lubrication! Compressor breakdown!
The superheat at the compressor suction inlet must
always be sufficient to ensure that no refrigerant
droplets
enter
the
evaporator-expansion
minimum stable superheat of at least 20°F (10 °K) is
required
measured
compressor suction inlet.
Refer to Figure 1 for application envelopes.
2.2.4. Oil level
ZB*KAU compressors have no oil sight glass which
ensures maximum hermeticity to allow operation with
flammable refrigerant, Consequently, it is difficult to get
an indication of the actual oil level in the compressor
during operation. For new applications, OEM's are
required to order a sample compressor equipped with
an external site tube for lab testing to confirm operating
oil levels (see Figure 19 and Figure 20). Refer to
Appendix B
for details about Oil Filling Test for new
applications.
The factory oil filling for all ZB*KAU compressor models
has been optimized to a value of 16 oz (473 mL). This
is a reduced oil filling which makes the compressor
applicable to run in systems with refrigerant charges
below 150 grams. This reduced oil filling is close to the
minimum oil required, Oil Filling Test of Appendix B is
required for application approval. See Figure 2 for
reference.
7
AE4-1431 R1
Allowable
Operation
Pressure
Low-pressure
side
side
406 PSIG
247 PSIG
(28 bar)
(17 bar)
compressor.
For
a
valve
configuration
6"
(152
mm)
from
typical
a
the
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