Emerson Copeland Scroll ZB KC Series Manual

© 2020 Emerson Climate Technologies, Inc.
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TABLE OF CONTENTS
Safety ..............................Error! Bookmark not defined.
Safety Instructions ....................................................... 3
Safety Icon Explanation ............................................. 3
Instructions Pertaining to Risk of Electrical Shock, Fire,
or Injury to Persons...................................................... 4
Safety Statements........................................................ 4
1. Introduction ................................................ 5
2. Nomenclature ............................................. 5
3. Operating Envelope................................... 5
4. Use of R-513A Refrigerant ........................ 5
5. Accumulators ............................................. 5
6. Crankcase Heaters..................................... 5
7. Discharge Line Thermostat....................... 6
8. Pressure Controls...................................... 6
9. Pump Down Recommendations............... 6
10. IPR Valve..................................................... 6
11. Internal Temperature Protection .............. 7
12. Motor Protection ........................................ 7
13. Oil Types..................................................... 7
14. Oil Charges................................................. 7
15. Oil Management for Rack Applications ... 7
16. Compressor Tubing and Mounting .......... 8
16.1. Mounting for Rack Systems......................... 8
16.2. Condensing Unit Mounting........................... 8
16.3.Tubing Considerations................................. 8
17. Starting Characteristics.............................8
18. Fusite...........................................................8
19. Shell Temperature......................................8
20. Connection Fittings....................................8
21. Three-Phase Rotation Direction................8
22. Brief Power Interruptions ..........................9
23. Deep Vacuum Operation............................9
24. Unbrazing System Components...............9
25. High Potential (Hipot) Testing...................9
26. Copeland Scroll Functional Check...........9
27. New Installation ........................................10
28. Field Service .............................................10
28.1. To disconnect: ............................................10
28.1.1. To reconnect:..............................................10
29. General Guidelines and More Information
10
30. Oil Sight Glass Designs...........................13
30.1. Oil Sight Glass Design Change for 1.5 to 9 HP
Copeland Scroll™ Refrigeration Compressors ..........13
30.2. Available Spare Parts Kit for Sightglass
Replacement: .............................................................14
31. OMB ...........................................................14
TABLE OF FIGURES
Figure 1 - Scroll Tube Brazing................................... 10
Figure 2 - ZB10KCE through ZB57KCE Application
Envelope for R-404A/R-507 (1.3 - 7.5 HP)................11
Figure 3 - ZB10KCE through ZB57KCE Application
Envelope for R-407A/R-407C/R-448A/R-449A (1.3 - 7.5
HP).............................................................................11
Figure 4 - ZB10KCE through ZB57KCE Application
Envelope for R-407F (1.3 - 7.5 HP)...........................12
Figure 5 - ZB15KCE trough 57KCE Application
Envelope for 134a (2-7.5HP).....................................12
Figure 6 - Sight glass design until November 30th, 2014
(14K and earlier) ........................................................ 13
Figure 7 –Sight glass design as of December 1st, 2014
(14K and after)........................................................... 13
Figure 8 - Available OMB adapter Kit ........................14
Figure 9 - OMB Design until November 30th, 2014 (14K
and earlier) .................................................................14
Figure 10 - OMB Design as of December 1st, 2014 and
after (14K and after) ...................................................14
Figure 11 - ZB10KC* through ZB57KC* (1.3-7.5 HP)
Refrigeration Scroll Rack Mounting............................15
Figure 12 - ZB10KC* through ZB57KC* (1.3-7.5 HP)
Refrigeration Scroll Condensing Unit Mounting .........15
Figure 13 - Typical Suction Tubing.............................16
Figure 14 - Motor Terminal (Fusite) Connections for
Single Phase and Three Phase Scrolls......................16
Figure 15 - Control Circuit Wiring Diagram ................17
AE4-1317 R14
July 2020
Application Guidelines for ZB*KC / ZB*KCE Refrigeration
Copeland Scroll™ Compressors ZB10KC* through ZB57KC* (1.3 to 7.5 HP)

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TABLES
Table 1 - Compressor Models and Approved
Refrigerants/Lubricants..............................................18
Table 2 - Charge Limitations...................................... 18
Table 3 - Crankcase Heater....................................... 19
Table 4 - Conduit Ready Heater Terminal Box Kits... 19
Table 5 - Discharge Thermostat Line Kits ................. 19
Table 6 - Pressure Control Settings ...........................20
Table 7 - Check-Valve Type.......................................20
Table 8 - Recommended Oil Charges by Model Family
....................................................................................21
Revision Tracking R14
Pg. 5 –Warning of using R-513A
Pg. 9 –Updated R-134a Envelope to Include R-513A
Pg. 18 –Added R-513A to list of approved refrigerants
Pg. 20 –Added R-513A to list of pressure cut-outs
Revision Tracking R13
Pg. 6 –DLT position and general guideline Text
updated.
Pg. 7 –References to OMB updated to OMB/C in
Section 16
Pg. 13 –Title of Figures 6 and 7 were updated.
Pg. 17 –Title of Figures 15 was updated
Revision Tracking R12
Pg. 1 –ZB10KC* through ZB57KC designation applied
on the Bulletin title and rest of the bulletin.

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Safety Instructions
Copeland Scroll™ compressors are manufactured according to the latest U.S. and European Safety Standards.
Particular emphasis has been placed on the user's safety. Safety icons are explained below and safety instructions
applicable to the products in this bulletin are grouped on Page 4. These instructions should be retained throughout
the lifetime of the compressor. You are strongly advised to follow these safety instructions.
Safety Icon Explanation
DANGER indicates a hazardous situation which, if not avoided, will result in death or serious
injury.
WARNING indicates a hazardous situation which, if not avoided, could result in death or
serious injury.
CAUTION, used with the safety alert symbol, indicates a hazardous situation which, if not
avoided, could result in minor or moderate injury.
NOTICE is used to address practices not related to personal injury.
CAUTION, without the safety alert symbol, is used to address practices not related to
personal injury.
FLAMMABLE, Fire hazard! Sparking in a potentially explosive atmosphere! Explosion
hazard!
WARNING
CAUTION
NOTICE
DANGER
CAUTION

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Instructions Pertaining to Risk of Electrical Shock, Fire, or Injury to Persons
ELECTRICAL SHOCK HAZARD
•Disconnect and lock out power before servicing.
•Discharge all capacitors before servicing.
•Use compressor with grounded system only.
•Molded electrical plug must be used when required.
•Refer to original equipment wiring diagrams.
•Electrical connections must be made by qualified electrical personnel.
•Failure to follow these warnings could result in serious personal injury.
PRESSURIZED SYSTEM HAZARD
•System contains refrigerant and oil under pressure.
•Remove refrigerant from both the high and low compressor side before
removing compressor.
•Never install a system and leave it unattended when it has no charge, a
holding charge, or with the service valves closed without electrically locking
out the system.
•Use only approved refrigerants and refrigeration oils.
•Personal safety equipment must be used.
• Failure to follow these warnings could result in serious personal injury.
BURN HAZARD
•Do not touch the compressor until it has cooled down.
•Ensure that materials and wiring do not touch high temperature areas of the
compressor.
•Use caution when brazing system components.
•Personal safety equipment must be used.
• Failure to follow these warnings could result in serious personal injury or
property damage.
COMPRESSOR HANDLING
•Use the appropriate lifting devices to move compressors.
•Personal safety equipment must be used.
• Failure to follow these warnings could result in personal injury or property
damage.
Safety Statements
•Refrigerant compressors must be employed only for their intended use.
•Only qualified and authorized HVAC or refrigeration personnel are permitted to install commission and
maintain this equipment.
•Electrical connections must be made by qualified electrical personnel.
•All valid standards and codes for installing, servicing, and maintaining electrical and refrigeration equipment
must be observed.
CAUTION
WARNING
WARNING
WARNING

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1. Introduction
The ZB*KC/ZB*KCE Copeland Scroll™ compressor
represents the latest generation of compliant scroll
technology for the refrigeration industry.
2. Nomenclature
The refrigeration scroll model numbers include the
nominal capacity at standard 60HZ ARI rating conditions
for medium temperature (20/120°F). For additional
information on this product, please refer to the Online
Product Information at Emerson.com/OPI
3. Operating Envelope
The ZB*KC/ZB*KCE refrigeration scroll compressor
models can be used with a variety of refrigerants
depending on the model selected and the lubricant
used. (See Table 1 at the end of this bulletin.)
The ZB*KC and ZB*KCE models are intended for
medium temperature refrigeration type duty. The
approved operating envelopes for these models are
such that they are ideally suited for applications such as
ice machines, bulk milk and FCB/FUB. The models and
operating envelopes are depicted in Figure 2, Figure 3,
Figure 4 and Figure 5 at the end of this bulletin.
4. Use of R-513A Refrigerant
Note: Refrigerant migration of R-513A into the
compressor crankcase could cause low oil viscosity
which could lead to compressor damage.
•When using R-513A it is critical to meet the
following requirements
•Maintain adequate superheat settings with a
minimum superheat of 20°F at the compressor
•No liquid refrigerant migration into the
compressor at any time, especially during
standstill or during or after defrost
•Pump down recommended.
•The use of a crankcase heater is
recommended.
•Retrofit R-513A is only allowed for compressors
which are approved for these refrigerants
5. Accumulators
Due to the scrolls’ inherent ability to handle liquid
refrigerant in flooded start and defrost cycle operation
conditions, accumulators may not be required. An
accumulator is required on single compressor systems
when the charge limitations exceed those values listed
in Table 2. On systems with defrost schemes or
transient operations that allow prolonged uncontrolled
liquid return to the compressor, an accumulator is
required unless a suction header of sufficient volume to
prevent liquid migration to the compressor is used.
Excessive liquid flood back or repeated flooded starts
will dilute the oil in the compressor causing inadequate
lubrication and bearing wear. Proper system design will
minimize liquid flood back, thereby ensuring maximum
compressor life.
In order to assure that liquid refrigerant does not return
to the compressor during the running cycle, attention
must be given to maintaining proper superheat at the
compressor suction inlet. Emerson recommends a
minimum of 20°F (11°C) superheat, measured on the
suction line 6 inches (152mm) from the suction valve, to
prevent liquid refrigerant floodback.
Another method to determine if liquid refrigerant is
returning to the compressor is to accurately measure the
temperature difference between the compressor oil
crankcase and the suction line. During continuous
operation we recommend that this difference be a
minimum of 50°F (27°C). This “crankcase differential
temperature” requirement supersedes the minimum
suction superheat requirement in the last paragraph. To
measure oil temperature through the compressor shell,
place a thermocouple on the bottom center (not the
side) of the compressor shell and insulate from the
ambient.
During rapid system changes, such as defrost or ice
harvest cycles, this temperature difference may drop
rapidly for a short period of time. When the crankcase
temperature difference falls below the recommended
50°F (27°C), our recommendation is the duration should
not exceed a maximum (continuous) time period of two
minutes and should not go lower than a 25°F (14°C)
difference.
Contact your Emerson Climate Technologies
representative regarding any exceptions to the above
requirements.
6. Crankcase Heaters
•Single-phase
No crankcase heaters are required on single-phase
scroll compressors.
•Three-phase - outdoor only
Crankcase heaters are required on three phase
compressors where the system charge exceeds 10
lbs.
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The listed crankcase heaters are intended for use only
when there is limited access (See Table 3). The heaters
are not equipped for use with electrical conduit. Where
applicable, electrical safety codes require lead
protection, a crankcase heater terminal box should be
used. Recommended crankcase heater terminal box
and cover kit numbers are listed in Table 4. If there are
any questions concerning their application, contact to
Emerson, Application Engineering department.
7. Discharge Line Thermostat
Figure 2, Figure 3, Figure 4 and Figure 5 how
saturated suction temperature, maximum condensing
temperature, maximum return gas temperature, and
maximum discharge line temperature. Operation
beyond these limits can cause high compression ratios
or excessive internal compressor temperatures. This
will result in overheating the scroll members, causing
excessive wear resulting in premature compressor
failure.
If the system is designed where operation within these
guidelines cannot be guaranteed, then a discharge line
thermostat is required in the compressor control circuit.
When installed approximately 6-7 inches from the
discharge tube outlet, depending on tubing
configuration. The thermostats have a cut-out setting
that will ensure the external discharge line temperature
does not exceed the 260°F limit. If a Rotalock service
valve is installed on the discharge port connection, the
thermostat should be located approximately 5-6 inches
from the valve braze connection.
Kits have been set up to include the thermostat, retainer,
and installation instructions. These thermostats must be
used with ½” O.D. discharge lines to ensure proper
thermal transfer and temperature control. They work
with either 120 or 240-volt control circuits and are
available with or without an alarm circuit capability. See
Table 5 for a list of discharge line thermostat kit
numbers.
8. Pressure Controls
Both high and low-pressure controls are required on the
following models, (1.3-2 HP) ZB10-14KCE. Only low-
pressure controls are required on the following models,
(2-7.5 HP) ZB15-57KC/E. See Table 6 for set points.
Application Note: There are exceptions to the pressure
settings listed in Table 6. Certain OEMs are approved
for LPC settings below our standard recommendations.
9. Pump Down Recommendations
Table 7 identifies the “ZB” models that incorporate the
low-leak check valve suitable for pump-down
applications. The standard disc is not intended for use
with a pump down.
Typically, the compressors that use the low-leak
discharge check valve are suitable for pump down
applications. This valve prevents system pressures from
equalizing and pump down can be achieved. However,
during laboratory testing, we have observed a potential
short cycling condition on the ZB15 through ZB29
models. This phenomenon can be attributed to several
factors:
1. Location of low-pressure control sensor. If it is
located right at the suction inlet of the compressor,
it will be more sensitive to pressure spikes.
2. Actual low-pressure setting. Refer to our
recommended setting in Table 6. If the differential
pressure setting is too close, this will increase the
possibility of short cycling.
3. Type of Low-pressure control can have an effect on
cycling. The encapsulated non-adjustable type is
more susceptible to causing excessive cycling due
to tolerances.
4. If short cycling cannot be avoided, using a 3-minute
time delay will limit the cycling of the
compressor to an acceptable level.
The ZB10 through ZB14 models will require the
following recommendations for pump down
applications:
5. Install an external check-valve in the discharge line
to prevent back-flow from the high side to low side.
Install check-valve as close to the compressor
discharge fitting as possible to minimize discharge
gas volume.
6. Set low pressure to recommended settings in Table
6.
7. Since these models are single-phase only, add a
time delay relay to prevent reverse rotation. Refer to
Brief Power Interruptions section of this bulletin
for additional information.
10. IPR Valve
Refrigeration scroll compressors (2-7.5 HP) ZB15-
57KC/E have internal pressure relief valves, which open
at a discharge to suction differential pressure of 375 to
450 psi. This action will trip the motor protector and
remove the motor from the line. The ZB10-14KCE
models DO require a high pressure control in addition to
NOTICE
NOTICE

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a low pressure control, since these models do not have
an IPR valve.
11. Internal Temperature Protection
Refrigeration Scroll compressors (1.3-7.5 HP) ZB10-
57KC/E incorporate a Thermo-disc which is a
temperature-sensitive snap disc device located at the
scroll discharge port. It is designed to open and route
hot discharge gas back to the motor protector thus
removing the compressor from the line.
12. Motor Protection
Conventional inherent internal line break motor
protection is provided.
13. Oil Types
Polyol ester lubricants must be provided if the scroll
compressor is to be used with HFC refrigerants. ZBKC
compressors that are to be used with R22 should be
supplied with mineral oil. See Form 93-11 for a
complete list of all Emerson approved lubricants.
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.
14. Oil Charges
The recommended oil charges for these compressors
are shown in Table 8.
15. Oil Management for Rack Applications
Copeland Scroll refrigeration compressors may be used
on multiple compressor parallel rack applications. This
requires the use of an oil management system to
maintain proper oil level in each compressor crankcase.
The sight glass connection supplied can accommodate
the mounting of the oil control devices.
Unlike semi-hermetic compressors, scroll compressors
do not have an oil pump with accompanying oil pressure
safety controls. Therefore, an external oil level control is
required.
The Emerson OMB/C Oil Level Management Control
combines the functions of level control and timed
compressor shut-off should the level not come back to
normal within a set period of time. This device has been
found to provide excellent performance in field tests on
Copeland Scroll compressors and is recommended for
parallel system applications.
For Technical details about OMB/C Oil Level
Management Control follow these links or scan their QR
code:
- OMB/C Instruction Sheet
https://climate.emerson.com/documents/omb-
c--pa-00388-en-4858298.pdf
- OMB/C & OLC Adapter Kits Installation
Instructions Sheet
https://climate.emerson.com/documents/omb-
adapter-instructions-en-4924792.pdf
See Table 8 order to select appropiate Adapter Kit.
Note: Emerson Climate Technologies' Application
Engineering Department should be contacted for
approved oil management systems.
Immediately after system start-up the oil reservoir level
will fluctuate until equilibrium is reached. It is advisable
to monitor the oil level during this time to assure
sufficient oil is available. This will prevent unnecessary
trips of the oil control system.
Note: If oil management problems are occurring please
refer to AE17-1320 or contact to Emerson, Application
Engineering Department.
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16. Compressor Tubing and Mounting
Compressor mounting must be selected based on
application. Consideration must be given to sound
reduction and tubing reliability. Some tubing geometry
or “shock loops” may be required to reduce vibration
transferred from the compressor to external tubing.
16.1.Mounting for Rack Systems
For ZB10KC* through ZB57KC* (1.3-7.5 HP)
compressors, specially designed rubber grommets are
available for refrigeration scroll compressor
applications. These grommets are formulated from a
durometer material specifically designed for
refrigeration applications. The durometer limits the
compressor motion, thereby minimizing potential
problems of excessive tubing stress. Sufficient isolation
is provided to prevent vibration from being transmitted
to the mounting structure. This mounting arrangement is
recommended for multiple compressor rack
installations. See Figure 11 for a detail of this mounting
system.
The use of standard soft grommets is not recommended
for most refrigeration scroll rack installations. These
softer mounts allow for excessive movement that will
result in tube breakage, unless the entire system is
properly designed.
16.2.Condensing Unit Mounting
For ZB10KC* through ZB57KC* (1.3-7.5 HP)
refrigeration scroll condensing unit applications, soft
mounts are recommended. See Figure 12.
16.3.Tubing Considerations
Proper tube design must be taken into consideration
when designing the tubing connecting the scroll to the
remaining system. The tubing should provide enough
“flexibility” to allow normal starting and stopping of the
compressor without exerting excessive stress on the
tube joints. In addition, it is desirable to design tubing
with a natural frequency away from the normal running
frequency of the compressor. Failure to do this can
result in tube resonance and unacceptable tubing life.
Figure 13 shows examples of acceptable tubing
configurations.
These examples are intended only as guidelines to
depict the need for flexibility in tube designs. In order to
properly determine if a design is appropriate for a given
application, samples should be tested and evaluated for
stress under various conditions of use including voltage,
frequency, and load fluctuations, and shipping vibration.
The guidelines above may be helpful; however, testing
should be performed for each system designed.
17. Starting Characteristics
Single-phase scroll compressors are designed with
PSC type motors and therefore will start without the
need of start assist devices in most applications.
However, if low voltage conditions exist at start up,
protector trips can result. Therefore, start assist devices
(start capacitors and relays) are available to maximize
starting characteristics under abnormal conditions.
18. Fusite
Fusite pin orientation for single-phase and three- phase
refrigeration scroll compressors are shown in Figure 14
and inside the terminal box.
19. Shell Temperature
System component failure may cause the top shell and
discharge line to briefly reach temperatures above
300°F. Wiring or other materials, which could be
damaged by these temperatures, should not come in
contact with the shell.
20. Connection Fittings
Scroll compressors are provided with either braze
connections or roto-lock adapters depending on the bill
of material selected (reference AE4-1219 for roto-lock
torque values). Consult your District Sales Manager or
Application Engineer for details.
All ZBKC/E models have copper plated steel suction
and discharge fittings for a more rugged, leak resistant
connection.
See section on New Installation (see Figure 1) for
suggestions on how to properly braze these fittings.
21. Three-Phase Rotation Direction
Scroll compressors are directional dependent: i.e., they
will compress in one rotational direction only. On single-
phase compressors, this is not an issue since they will
only start and run in the proper direction (except as
described in the Labeled Brief Power Interruptions).
Three-phase scrolls, however, will rotate in either
direction depending on the power of the phasing. So
there is a 50/50 chance of connected power being
“backwards.” Contractors should be warned of this.
Appropriate instructions or notices should be provided
by the Original Equipment Manufacturer.
NOTICE
CAUTION
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Verification of proper rotation can be made by observing
that the suction pressure drops and the discharge
pressure rises when the compressor is energized.
Additionally, if operated in reverse the compressor is
noisier and its current draw is substantially reduced
compared to tabulated values.
Although operation of scroll in reverse direction for brief
periods of time is not harmful, continued operation could
result in failure.
All three-phase compressors are wired identically
internally. Once the correct phasing is determined for a
specific system or installation, connecting properly
phased power leads to the same fusite terminals will
maintain the proper rotation.
22. Brief Power Interruptions
Brief power interruptions (less than ½ second) may
result in powered reverse rotation of single-phase
refrigeration scroll compressors. High-pressure
discharge gas expands backward through the scrolls at
power interruption causing the scroll to orbit in the
reverse direction. If power is reapplied while this
reversal is occurring, the compressor may continue to
run noisily in the reverse direction for several minutes
until the compressor internal protector trips. This has no
negative effect on durability. When the protector resets,
the compressor will start and run normally.
Emerson strongly encourages the use of a timer which
can sense brief power interruptions and lock the
compressor out of operation for two minutes. A typical
timer circuit is shown in Figure 15.
No time delay is required on three phase models to
prevent reverse rotation due to power interruptions
23. Deep Vacuum Operation
Do not run a refrigeration scroll compressor in a
vacuum. Failure to heed this advice can result in
permanent damage to the compressor.
A low-pressure control is required for protection against
vacuum operation. See the section on Pressure
Controls for the proper set points. (See Table 6)
Scroll compressors (as with any refrigeration
compressor) should never be used to evacuate
refrigeration or air conditioning systems. See AE24-
1105 for proper system evacuation procedures.
24. Unbrazing System Components
If the refrigerant charge is removed from a scroll unit by
bleeding the high side only, it is sometimes possible for
the scrolls to seal, preventing pressure equalization
through the compressor. This may leave the low side
shell and suction line tubing pressurized. If a brazing
torch is then applied to the low side, the pressurized
refrigerant oil mixture could ignite as it escapes and
contacts the brazing flame. It is important to check both
the high and low sides with manifold gauges before
unbrazing. In the case of an assembly line repair,
remove the refrigerant from both the high and low sides.
Instructions should be provided in appropriate product
literatures and assembly areas.
25. High Potential (Hipot) Testing
Many of the Copeland brand compressors are
configured with the motor below the compressor. As a
result, when liquid refrigerant is within the compressor
shell the motor can be immersed in liquid refrigerant to
a greater extent than with compressors with the motor
mounted above the compressor. When Copeland brand
compressors are Hipot tested and liquid refrigerant is in
the shell, they can show higher levels of leakage current
than compressors with the motor on top because of the
higher electrical conductivity of liquid refrigerant than
refrigerant vapor and oil. This phenomenon can occur
with any compressor when the motor is immersed in
refrigerant. The level of current leakage does not
present any safety issue. To lower the current leakage
reading the system should be operated for a brief period
of time to redistribute the refrigerant to a more normal
configuration and the system Hipot tested again. See
bulletin AE4-1294 for Megohm testing
recommendations. Under no circumstances should the
Hipot or Megohm test be performed while the
compressor is under a vacuum.
26. Copeland Scroll Functional Check
Refrigeration scroll compressors do not have internal
suction valves. It is not necessary to perform functional
compressor tests to check how low the compressor will
pull suction pressure. This type of test may damage a
scroll compressor. The following diagnostic procedure
should be used to evaluate whether a Copeland Scroll
compressor is functioning properly.
1. Verify proper unit voltage.
2. Normal motor winding continuity and short to
ground checks will determine if the inherent
overload motor protector has opened or if an
internal short to ground has developed. If the
protector has opened, the compressor must cool
sufficiently to reset.
3. With service gauges connected to suction and
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discharge pressure fittings, turn on the compressor.
If suction pressure falls below normal levels, the
system is either low on charge or there is a flow
blockage.
4. A- Single-Phase Compressors
If the suction pressure does not drop and the
discharge pressure does not rise to normal levels
the compressor is faulty.
B- Three-Phase Compressors
If the suction pressure does not drop and the
discharge pressure does not rise, reverse any two
of the compressor power leads and reapply power
to make sure the compressor was not wired to run
in the reverse direction.
The compressor current draw must be compared to
published compressor performance curves at the
compressor operating conditions (pressures and
voltages). Significant deviations (±15%) from published
values may indicate a faulty compressor.
27. New Installation
•The copper-coated steel suction, discharge, and
injection tubes on scroll compressors can be brazed
in approximately the same manner as any copper
tube.
•Recommended brazing material - Any Silfos®
material is recommended, preferably with a
minimum of 5% silver. However, 0% silver is
acceptable.
•Use of a dry nitrogen purge to eliminate possibility
of carbon buildup on internal tube surfaces is
recommended.
•Be sure process tube fitting I.D. and process tube
O.D. are clean prior to assembly.
•Apply heat in Area 1. As tube approaches brazing
temperature, move torch flame to Area 2.
•Heat Area 2 until braze temperature is attained,
moving torch up and down and rotating around tube
as necessary to heat tube evenly. Add braze
material to the joint while moving torch around
circumference.
•After braze material flows around joint, move torch
to heat Area 3. This will draw the braze material
down into the joint. The time spent heating Area 3
should be minimal.
•As with any brazed joint, overheating may be
detrimental to the final result.
Figure 1 - Scroll Tube Brazing
28. Field Service
28.1.To disconnect:
•Recover refrigerant from both the high and low side
of the system. Cut tubing near compressor.
28.1.1. To reconnect:
•Recommended brazing materials - Silfos® with
minimum 5% silver or silver braze material with flux.
•Reinsert tubing fitting.
•Heat tube uniformly in Area 1, moving slowly to Area
2. When joint reaches brazing temperature, apply
brazing material.
•Heat joint uniformly around the circumference to
flow braze material completely around the joint.
•Slowly move torch in Area 3 to draw braze material
into the joint.
Do not overheat joint.
29. General Guidelines and More Information
For general Copeland™compressor information please
log in to Online Product Information at
Emerson.com/OPI, refer to the Application Engineering
bulletins listed below, or contact your Application
Engineer.
AE17-1320
Oil Management for Copeland
Scroll™ Compressors in Parallel
Applications
AE4-1219
Torque Values on Copeland™
Brand Products Recommended
Torque with Lubricated Bolts
AE4-1294
Megohm Values of Copeland®
Compressors
Form 93-11
Refrigerants and lubricants
approved for use in Copeland™
compressors

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Figure 2 - ZB10KCE through ZB57KCE Application Envelope for R-404A/R-507 (1.3 - 7.5 HP)
Figure 3 - ZB10KCE through ZB57KCE Application Envelope for R-407A/R-407C/R-448A/R-449A
(1.3 - 7.5 HP)

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Figure 4 - ZB10KCE through ZB57KCE Application Envelope for R-407F (1.3 - 7.5 HP)
Figure 5 - ZB15KCE trough 57KCE Application Envelope for 134a / 513A (2-7.5HP)

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30. Oil Sight Glass Designs
30.1.Oil Sight Glass Design Change for 1.5 to 9 HP Copeland Scroll™ Refrigeration Compressors
In order to communize design across platforms and improve product quality, Emerson Climate Technologies Inc. has
implemented a new sightglass design on 1.5 –9 HP Copeland Scroll refrigeration compressor. Emerson Climate
Technologies has significant experience with this design, which aligns with other platform designs.
The production implementation of the new design was December 1th, 2014. All compressors with serial numbers
beginning with 14L will have the new sightglass fitting.
Example: Serial Number –14L259554 => December 2014
Figure 6 - Sight glass design until November 30th, 2014 (14K and earlier)
Kit includes: Threaded, PTFE coated, sightglass.
Compressor sightglass connection: conical ¾” – 14 NPTF
Recommended sightglass torque: 80 –100 in-lbs.
Figure 7 –Sight glass design as of December 1st, 2014 (14K and after)
Kit includes: Gasket / sightglass / 1 ¼ “ nut
Compressor sightglass connection: external thread 1 ¼” – 12 UNF.
Recommended sightglass torque: 300 –360 in-lbs.
* The different designs cannot be used interchangeably.

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30.2.Available Spare Parts Kit for Sightglass Replacement:
Sight Glass Replacement Kit: P/N 998-0010-02
Note: Contains both internal and external thread design sightglasses.
New Design: Emerson Flow Controls P/N 066650
(KS30394-2)
Contains:
•1 1/2 “ Nut OMB Adapter
•Gasket
•O-ring
Compressor Sightglass connection: external thread 1
¼” – 12 UNF
Recommended sightglass torque: 960 –1200 in-lbs.
Figure 8 - Available OMB adapter Kit
31. OMB
This external thread design will hold the OMB the same distance away from the compressor as the previous internal
thread design, resulting in no change of the compressor’s footprint.
Figure 9 - OMB Design until November 30th, 2014 (14K and earlier)
Figure 10 - OMB Design as of December 1st, 2014 and after (14K and after)
For additional information please refer to Marketing Bulletin MB2014CC-6

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Figure 11 - ZB10KC* through ZB57KC* (1.3-7.5 HP) Refrigeration Scroll Rack Mounting
Figure 12 - ZB10KC* through ZB57KC* (1.3-7.5 HP) Refrigeration Scroll Condensing Unit Mounting

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Figure 13 - Typical Suction Tubing
NOTES:
1. The above tubing configurations are guidelines to minimize tube stress.
2. Follow similar guidelines for discharge tubing and oil return tubing as needed.
3. If a run of over 20” is required, intermediate clamps may be necessary.
4. Do not hang weights on tubing (e.g. filter drier on suction tubing) except after clamps or close to the header.
5. Tube runs of less than 8” are not recommended.
6. This dimension should be made as short as possible (e.g. 2” or less) but still insuring a proper braze joint.
7. The above tubing recommendations are based on “no elbow joints”. The use of continuous tubing is preferred.
Figure 14 - Motor Terminal (Fusite) Connections for Single Phase and Three Phase Scrolls

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Figure 15 - Control Circuit Wiring Diagram

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Table 1 - Compressor Models and Approved Refrigerants/Lubricants
Model
HP
Refrigerant
Lubricant
ZB10KCE
1.3
R-404A/ R-507
POE
ZB11KCE
1.5
R-404A/ R-507
POE
ZB13KCE
1.8
R-404A/ R-507
POE
ZB14KCE
2.0
R-404A/ R-507
POE
ZB15KCE
2.0
R-22/ R-404A/ R-507/ R-134a/ R-407A/ R-407C/
R-407F/ R-448A/ R-449A/ R-513A
MO/POE
ZB19KCE
2.5
R-22/ R-404A/ R-507/ R-134a/ R-448A/ R-449A/
R-513A
MO/POE
ZB21KCE
3.0
R-22/ R-404A/ R-507/ R-134a/ R-407A/ R-407C/
R-407F/ R-448A/ R-449A/ R-513A
MO/POE
ZB26KCE
3.5
R-22/ R-404A/ R-507/ R-134a/ R-407A/ R-407C/
R-407F/ R-448A/ R-449A/ R-513A
MO/POE
ZB29KCE
4.0
R22/ R404A/ R507/ R134a/ R407A/ R407C/
R407F/ R-448A/ R-449A/ R-513A
POE
ZB30KCE
4.0
R-22/ R-404A/ R-507/ R-134a/ R-407A/ R-407C/
R-407F/ R-448A/ R-449A/ R-513A
MO/POE
ZB38KCE
5.0
R-22/ R-404A/ R-507/ R-134a/ R-407A/ R-407C/
R-407F/ R-448A/ R-449A/ R-513A
MO/POE
ZB42KCE
5.5
R-22/ R-404A/ R-507/ R-134a/ R-448A/ R-449A/
R-513A
MO/POE
ZB45KCE
6.0
R-22/ R-404A/ R-507/ R-134a/ R-407A/ R-
407C/R-407F/ R-448A/ R-449A/ R-513A
MO/POE
ZB48KCE
6.5
R-22/ R-404A/ R-507/ R-134a/ R-407A/ R-407C/
R-407F/ R-448A/ R-449A/ R-513A
POE
ZB57KCE
7.5
R-22/ R-404A/ R-507/ R-134a/ R-407A/ R-407C/
R-407F/ R-448A/ R-449A/ R-513A
POE
See Emerson Climate Technologies Form 93-11 for a complete list of all Emerson approved lubricants.
Table 2 - Charge Limitations
Model Family
Chrg. Lmts
ZB10,11,13,14KCE
6 lbs
ZB15,19, 21, 26, 29, 30, 38, 45, 48, 57KC/E
10 lbs

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Table 3 - Crankcase Heater
Model
Part No.
Volts
Watts
Length
ZB10,11, 13, 14
018-0052-00
918-0041-01
120
40
21”
ZB10,11, 13, 14
018-0052-01
918-0041-00
240
40
21”
ZB15, 19, 21, 26, 29, 30,
38, 45, 48, 57
018-0057-04
918-0043-00
240
70
48”
ZB15, 19, 21, 26, 29, 30,
38, 45, 48, 57
018-0057-05
918-0043-01
480
70
48”
ZB15, 19, 21, 26, 29, 30,
38, 45, 48, 57
018-0057-06
918-0043-02
575
70
48”
ZB15, 19, 21, 26, 29, 30,
38, 45, 48, 57
018-0057-07
918-0043-07
120
70
48”
Table 4 - Conduit Ready Heater Terminal Box Kits
Model Number
Kit Number
ZB10-ZB14
N/A
ZB15-ZB29
998-7026-00
ZB30-ZB57
998-7024-00
Table 5 - Discharge Thermostat Line Kits
Kit Number
Conduit Lead
Connector
Alarm
Contact
Discharge Line
Diameter
998-0540-00
No
No
½”
998-0548-00
No
Yes
½”
998-7022-02
Yes
No
½”
998-7022-04
Yes
No
5/8”
998-7022-07
ZB48 & ZF25 only
Yes
No
¾”

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Table 6 - Pressure Control Settings
Model
Control
Type
R-404A/R-507
R-134a / R-513A
R-22
R-407A/R-407F/
R-448A/R-449A
R-407C
ZB10/11/
13/14KCE
Low
High
17 PSIG min.
450 PSIG max.
N/A
N/A
N/A
N/A
ZB*KC*
Low
High
17 PSIG min.
450 PSIG max.
4 PSIG min.
263 PSIG max.
37 PSIG min.
382 PSIG max.
8.5 PSIG min.
428 PSIG max.
6.5 PSIG min.
402 PSIG max.
Table 7 - Check-Valve Type
Model Number
Check Valve Type
ZB10KCE
Standard Disc
ZB11KCE
Standard Disc
ZB13KCE
Standard Disc
ZB14KCE
Standard Disc
ZB15KC/E
Spring Loaded Low-Leak
ZB19KC/E
Spring Loaded Low-Leak
ZB21KC/E
Spring Loaded Low-Leak
ZB26KC/E
Spring Loaded Low-Leak
ZB29KC/E
Spring Loaded Low-Leak
ZB30KC/E
Spring Loaded Low-Leak
ZB38KC/E
Spring Loaded Low-Leak
ZB42KC/E
Spring Loaded Low-Leak
ZB45KC/E
Spring Loaded Low-Leak
ZB48KCE
Spring Loaded Low-Leak
ZB57KCE
Spring Loaded Low-Leak