Emerson Copeland OMTE-76D Instruction Manual

Application Guidelines
Copeland™Large Outdoor
Refrigeration Units
OMTE-76D to OMTE-152D
OLE-49 & OLTE-82D

AGL_Unit_LOCU_EN_Rev00
About these guidelines..............................................................................................1
1Safety instructions..........................................................................................1
1.1 Icon explanation................................................................................................. 1
1.2 Safety statements............................................................................................... 1
1.3 General instructions............................................................................................ 2
2Product description ........................................................................................3
2.1 General information about Copeland™LOCU refrigeration unit................................. 3
2.2 EU Ecodesign Directive 2009/125/EC.................................................................... 3
2.3 Main product features and dimensions................................................................... 3
2.4 Product nameplate............................................................................................. 5
2.5 Nomenclature.................................................................................................... 5
2.6 Application range............................................................................................... 6
2.6.1 Qualified refrigerants and oils..................................................................... 6
2.6.2 Application limits ...................................................................................... 6
2.6.3 PEDcategory .......................................................................................... 6
2.7 BOM variations.................................................................................................. 6
2.8 P&Idiagrams..................................................................................................... 7
2.8.1 OMTE-76D& OMTE-90Dunits................................................................... 7
2.8.2 OMTE-152D units..................................................................................... 8
2.8.3 OLE-49 units........................................................................................... 9
2.8.4 OLTE-82Dunits......................................................................................10
2.9 Main components description..............................................................................11
2.9.1 Bill ofmaterial 501 –General description....................................................11
2.9.2 Bill ofmaterial 502 –General description....................................................11
2.9.3 Compressor............................................................................................11
2.9.4 Electricalcabinet.....................................................................................12
2.9.5 Condenserfan(s) ....................................................................................12
2.9.6 Housing.................................................................................................12
2.10XCM25D Electronic controller –Features..............................................................13
2.10.1 Description.............................................................................................13
2.10.2 Functionality...........................................................................................13
2.10.3 Modbus Communication...........................................................................14
2.10.4 Main control & safety features ...................................................................14
2.11XCM25D Electronic controller –Programming .......................................................16
2.11.1 Programming the local display...................................................................16
2.11.2 Remote display CCM60............................................................................17
2.11.3 Singlecommands....................................................................................17
2.11.4 Double commands –Entering programming level 1 "Pr1" ..............................18
2.11.5 How to program the parameters (Pr1 and Pr2).............................................18
2.11.6 Entering programming level 2 "Pr2"............................................................18

AGL_Unit_LOCU_EN_Rev00
2.11.7 Fast access menu...................................................................................19
2.12Controller keyboard ...........................................................................................19
2.12.1 How to lock the keyboard..........................................................................19
2.12.2 How to unlock the keyboard......................................................................19
2.13Parameters level 1 –Required settings.................................................................20
2.14Digitaloperation................................................................................................20
2.15Rescue mode (emergency mode)........................................................................21
2.15.1 Functionality...........................................................................................21
2.15.2 PS1 –Setpoint adjustment of low-pressure switch in rescue mode..................22
2.15.3 Fan operation in rescue mode...................................................................22
2.16Heat recovery mode –Optional...........................................................................23
2.17Pumpdown.......................................................................................................23
2.18Reset to factorysettings –Emerson "Hot Key".......................................................24
2.18.1 How to save factory settings or usersettings ...............................................24
2.18.2 Applicable hot key for LOCU units with XCM25D controller............................24
2.18.3 Location of the "Hot Key" plug connection on the XCM25D controller..............24
2.18.4 How to program a "Hot Key" from the controller (upload)...............................24
2.18.5 How to program thecontroller using an Emerson "Hot Key" (download)...........24
2.19Troubleshooting –Alarm history...........................................................................25
2.20Compressor motor protection..............................................................................25
2.21Systempressureprotection.................................................................................25
2.21.1 High-pressure safety switch......................................................................25
2.21.2 Low-pressuresafetyswitch.......................................................................25
2.22Other inputs of the XCM25D controller..................................................................25
2.22.1 Heat recovery mode................................................................................25
2.22.2 Ambient temperaturesensor.....................................................................26
2.22.3 Refrigerant level control –Leak detection device..........................................26
2.22.4 Fan failure –Fan feedback .......................................................................26
2.23Alarmoutput (DO5) of theXCM25D controller........................................................26
3Installation.....................................................................................................27
3.1 Refrigeration unit handling..................................................................................27
3.1.1 Transport and storage..............................................................................27
3.1.2 Weights .................................................................................................27
3.1.3 Lifting....................................................................................................27
3.2 Refrigerationpiping connections..........................................................................28
3.2.1 Refrigeration piping installation..................................................................28
3.2.2 Connection sizes.....................................................................................29
3.2.3 Brazing recommendations ........................................................................30
3.2.4 Brazing procedure...................................................................................31
3.3 Electricalconnection..........................................................................................31
3.3.1 Power supply connections ........................................................................31

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3.3.2 Maximum operatingcurrents for cable selection...........................................31
3.3.3 Electrical protection standard (protectionclass)............................................32
3.4 Location & fixings..............................................................................................32
4Start-up & operation......................................................................................33
4.1 Evacuation.......................................................................................................33
4.2 Charging procedure...........................................................................................33
4.2.1 Refrigerant charging procedure.................................................................33
4.2.2 Charging level in liquid receiver.................................................................34
4.2.3 Oil charging procedure.............................................................................34
4.3 Rotationdirection of scroll compressors................................................................35
4.4 Maximum compressor cycle................................................................................35
4.5 Checksbeforestarting &during operation.............................................................35
4.6 Pressurefluctuations in caseof digital unit ............................................................36
5Maintenance & repair....................................................................................37
5.1 Opening the unit housing....................................................................................37
5.1.1 To open the electricalcabinet....................................................................37
5.1.2 To open thecompressor chamber..............................................................37
5.1.3 To remove the fan safety grid....................................................................38
5.1.4 To access the inner parts of the condenser.................................................38
5.2 Replacing a compressor.....................................................................................38
5.3 Electrical terminations........................................................................................39
5.4 Condenserfins..................................................................................................39
5.5 Routine leak testing...........................................................................................39
5.6 Condenserfans & motors...................................................................................40
6Certification & approval................................................................................41
7Dismantling & disposal.................................................................................41
Appendix 1: Parameter list level 1 (Pr1)...................................................................42
Appendix 2: Alarm menu..........................................................................................43
Appendix 3: Temperature / resistance curve for B7 Sensor (customeroption) .....49
Appendix 4: List of tables and figures.....................................................................50
DISCLAIMER.............................................................................................................52

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About these guidelines
The purpose of these application guidelines is to provide guidance in the applicationof Copeland™
LargeOutdoorRefrigerationunits(orLOCUunits).Theyareintendedtoanswerthequestionsraised
while designing, assembling and operating a systemwith these products.
Besidesthe support they provide, the instructionslisted herein are also critical for the proper and
safe functioning of the refrigeration units. The performance and reliability of the product may be
impacted if the productis not used according to these guidelines oris misused.
These application guidelines cover stationary applications only. For mobile applications, contact
Application Engineering as otherconsiderations mayapply.
1 Safety instructions
Copeland refrigeration units are manufactured according to the latest European safety standards.
Particularemphasis has been placed on the user's safety.
The LOCU refrigeration units are intended for installation in machines and systems in accordance
with the European Machinery Directive MD 2006/42/EC, the Pressure Equipment Directive
PED 2014/68/EU,theLowVoltageDirectiveLVD 2014/35/EUand theElectromagneticCompatibility
Directive EMC 2014/30/EU.They may be putto service only if they havebeen installed in systems
according to instructions and conform to the corresponding provisions of legislation. For relevant
standardspleasereferto the Manufacturer’s Declaration, available at www.climate.emerson.com/en-
gb.
These instructions should be retained throughout the lifetime of both the compressor and the
refrigeration unit.
You are strongly advised to follow these safety instructions.
1.1 Icon explanation
WARNING
This icon indicates instructions to
avoid personal injury and material
damage.
CAUTION
This iconindicatesinstructionstoavoid
property damage and possible
personal injury.
High voltage
This icon indicates operations with a
dangerof electricshock.
IMPORTANT
This iconindicatesinstructionstoavoid
malfunction of the compressor.
Danger ofburning or frost burn
This icon indicates operations with a
danger of burning or frost burn.
NOTE
This word indicates a recommendation
for easieroperation.
Explosion hazard
This icon indicates operations with a
dangerof explosion.
1.2 Safetystatements
▪Refrigerant compressorsand refrigeration units must be employed only for their intended
use. The system has to be labelled according to the applicable standards and legislation.
▪Only qualified and authorized HVACRpersonnelare permitted to install, commission and
maintain this equipment.
▪Electrical connections must be made by qualified electrical personnel.
▪All valid standards for connecting electrical and refrigeration equipment must be
observed.
▪Thenationallegislationandregulationsregardingpersonnel protectionmustbeobserved.
Use personal safety equipment. Safety goggles, gloves,
protectiveclothing,safetybootsand hard hatsshouldbewornwhere
necessary.

2 AGL_Unit_LOCU_EN_Rev00
1.3 General instructions
WARNING
Pressurized system! Serious personal injuries and/or system
breakdown!Accidentalsystemstartbeforecompleteset-upmustbeavoided.
Never leave the system unattended without locking it out electrically when it is
on vacuum and has no refrigerant charge, when it has a holding chargeof
nitrogen, or when the compressor service valves are closed.
System breakdown! Personal injuries! Only approved refrigerants and
refrigeration oils mustbe used.
WARNING
High shell temperature! Burning! Do not touch the compressor or piping
until they have cooled down.Ensure that other materials in the area of the
compressor do not come into contact with it. Lock and mark accessible
sections.
CAUTION
Overheating! Bearing damage! Do not operate compressors without
refrigerant charge or without being connected to the system.
CAUTION
Contact with refrigerant oil! Material damage! Polyolesteroil (POE) must
be handled carefully and the proper protective equipment (gloves, eye
protection,etc.) must be used at all times. POE must not come into contact
with any surface or material that it might damage, including without limitation,
certain polymers, eg, PVC/CPVC and polycarbonate.
IMPORTANT
Transit damage! Unit malfunction! Use original packaging. Avoid collisions
and tilting.
IMPORTANT
This appliance is not designed to be accessible to the general public
according to IEC 60335-2-40.
The contractor is responsiblefor the installation of the unit and should check the following points:
▪sufficient liquid sub-cooling in the line to the expansion valve(s) to avoid "flash-gas" in the liquid
line;
▪sufficient amountof oilin the compressor (in case of long piping additional oil must be charged).

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2 Product description
2.1 General information about Copeland™LOCU refrigeration unit
EmersonhasdevelopedtheCopelandLOCUrefrigerationunittomeetthedemandsofthefoodretail
and food service sectors. It is an air-cooledrefrigerationunit that usesthelatestCopeland patented
scroll technologyas the main driver and has electronic protection and diagnostics featuresbuilt in
the high-quality chassis. The combination of large condensers and low-speed fans allows for
particularly quietoperation.
Figure 1: Front view of the CopelandLOCU refrigerationunit
2.2 EU EcodesignDirective2009/125/EC
The European Directive 2009/125/EC with regard to ecodesign requirements for professional
refrigerated storage cabinets, blast cabinets, condensing units and process chillers requires
manufacturers to decrease the energy consumption of their products by establishing minimum
energy efficiencystandards. Copelandrefrigeration units are prepared and optimized to meet the
requirements of the Ecodesign Directive.The integrated variable speed fan and condenser reduce
the noise level and energy consumption significantly. This, combined with Copeland scroll
technology, allows forhigh-efficiency operation.
For the rated coolingcapacity,rated power input and rated COP value please referto Copeland
Select software at www.climate.emerson.com/en-gb.
These guidelinesmeettherequirementsof Regulation2015/1095,Annex V,section2(a),withregard
to product information,namely:
▪(v) ➔See chapter 2.6 "Application range"
▪(vi) ➔See chapters 5.4 "Condenser fins" and 5.5 "Routine leak testing"
▪(vii) ➔See chapters2.10.4 "Main control & safety features" and 4.2 "Charging procedure"
▪(viii)➔See chapter 7 "Dismantling & disposal"
2.3 Main productfeatures and dimensions
Copeland OMTE, OLE & OLTE refrigeration units are released for multiple refrigerants. They are
availableintwo cabinet sizesand areequippedwithoneortwo fans.Dependingonthecompressors
in use they are designed for medium-temperature or low-temperature refrigeration applications.
Refrigeration
unit
Refrigerant
Displacement
@ 100 %
(m³/h)
Cooling
capacity*
(kW)
Power supply
OMTE-76D
R404A, R407A, R407F,
R448A, R449A
R134a
28.7
16.65
3/N/PE~
50 Hz
400/230 VTN-S
OMTE-90D
34.1
18.95
OMTE-152D
57.6
33.90
OLE-49
R404A, R448A, R449A
42.4
8.99
OLTE-82D
70.7
13.50
* Conditions with R448A: ambient temperature: 32 °C; evaporating temperature: -10 °C dew point for OMTE
models and -35 °C dew point for OLE/OLTE models; suction temperature: 20 °C.
Table 1: LOCU technical data

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Unit
Outer dimensions
length/width/height with
closed cover (mm)
Netweight
(kg)
Gross weight
(kg)
OMTE-76D
1581 / 900 / 1069
345
383
OMTE-90D
348
386
OLE-49
314
352
OMTE-152D
2303 / 900 / 1150
508
566
OLTE-82D
511
569
Table 2: LOCU features
The figures hereaftershowstheoverall physical dimensionsof the LOCU refrigerationunits:
Figure 2: Outer dimensions of models OMTE-76D, OMTE-90D& OLE-49
Figure 3: Outer dimensions of models OMTE-152D& OLTE-82D

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2.4 Product nameplate
The refrigeration unitnameplate showsmodeldesignationand serialnumber, as well as locked rotor
amps, maximum rated current, safetypressures and weight.
The compressor has its own nameplate with all electrical characteristics.
Figure 4: Nameplate LOCUunits
2.5 Nomenclature
The model designation contains the following technical information about Copeland LOCU
refrigeration units:
Figure 5: Nomenclature LOCU units

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2.6 Application range
2.6.1 Qualified refrigerants and oils
Qualified
refrigerants
R404A, R407A,R407F,
R448A, R449A,R134a
R404A, R448A,R449A
Qualified
servicingoils
EmkarateRL 323MAF
MobilEALArctic 22CC
EmkarateRL 323MAF
MobilEAL Arctic 22CC
Unit
OMTE-76D
OMTE-90D
OMTE-152D
OLTE-82D
OLE-49
Oil chargesingle
compressor
3.37
3.37
3.37
3.37
3.37
Pre-chargeoil
separator
3.8
N/A
Total oil charge
10.54
3.37
Table 3: Qualified refrigerants andoils andoil charge in litres
NOTE: OMTE & OLTE units are equippedwith an oil separator. The separator is pre-charged
with 3.8 litres of oil.
2.6.2 Application limits
WARNING
Oil dilution due to low superheat! Compressor breakdown! Low suction
superheat leads to oil dilution. Always operate the system with adequate
superheat to avoid viscosity decrease of the oil. Additional measures in
system design might help to avoid unacceptable lubrication conditions.
For application envelopes,please refer to the compressor application envelopes whichcan be found
inCopeland Select software,available at www.climate.emerson.com/en-gb.
LOCU refrigeration units can be used at ambient temperatures down to -15 °C. The application
envelopes of the units must be respected under all operating conditions. For lower ambient
temperatures please contact your local Application Engineering representative.
2.6.3 PED category
The PED category is assigned according to the Pressure Equipment Directive PED 2014/68/EU.
Requirements apply to the relevantpressure levelsin the refrigeration unit if a defined limit value of
pressure relative to the environmentand relevant internal free volume is exceeded.
The calculation ofthe PED categoryis based on the fluid group (group 1: flammable or group 2:non-
flammable) and on the vessel size. A differentiation must be made between the high- and low-
pressure sides. The highest of the calculation results is considered to determine the PED category.
LOCU refrigeration units are operated with A1 refrigerants (fluid group 2).
Refrigerationunit range
Refrigerant
Fluid group
PED class
OMTE-76D, OMTE-90D
& OMTE-152D
R404A, R407A, R407F,
R448A, R449A, R134a
2
2
OLE-49& OLTE-82D
R404A, R448A, R449A
2
2
Table 4: PED categorybasedon refrigerantused
2.7 BOM variations
The BOM(billof material)numberattheend oftheunitdesignationindicatesthe differentunit layouts
and details. The units covered in these guidelines are available in the following BOMversions:
BOM
Family
Introduction
date
Controller concept
Oil
separator
501
OMTE-76D& OMTE-90D
07/2019
XCM25D
(Emerson -Dixell)
Yes
OMTE-152D & OLTE-82D
01/2019
Yes
OLE-49
12/2020
No
502
OMTE-76D& OMTE-90D
07/2019
Yes
OMTE-152D
01/2019
Yes
Table 5: BOM variations

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2.8 P&I diagrams
2.8.1 OMTE-76D & OMTE-90D units
Figure 6: P&I diagram for OMTE-76D & OMTE-90Dmodels
Position
Description
Comments
B1
P1 Suction pressure transducer(AI1)
PPR15
B2
P2 Condensing pressure transducer(AI2)
PPR30
B3
DLT Discharge line temperature sensor(AI3)
NTC 86K
B6
Ambienttemperature sensor(AI6)
NTC 10K
B7
Liquid receiverwith liquidlevel watch
LW4-L120Alco Controls
B11
TT >> DLT Discharge line thermostat130 °C compressor1
B12
TT >> DLT Discharge line thermostat130 °C compressor2
B13
Connection forpressure relief valve
½" NPT
PSL
Mechanical low-pressure switchPS1
PS1-A3AAlco Controls
PSH
High-pressurecut-outdevice
PS3-W6SAlco Controls
E1
Crankcase heatercompressor1
E2
Crankcase heatercompressor2
M1
High-efficiencydigital scroll compressor(ZBD*)
Compressor1
M2
High-efficiency standard scroll compressor(ZB*)
Compressor2
M3
High-efficiencyECfan
FN071-ZIQ
Y1
Digital controlsolenoid valve
1
Condenser
2
Liquid receiver
3
Filter dryer& sight glasscombination
AlcoControls
4
Oil separator
5
Oil equalizationlinesightglass
AlcoControls
Table 6: Legendof the P&I diagram for OMTE-76D& OMTE-90D models

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2.8.2 OMTE-152D units
Figure 7: P&I diagram for OMTE-152Dmodels
Position
Description
Comments
B1
P1 Suction pressuretransducer(AI1)
PPR15
B2
P2 Condensing pressure transducer(AI2)
PPR30
B3
DLT Discharge line temperature sensor(AI3)
NTC 86K
B6
Ambienttemperature sensor(AI6)
NTC 10K
B7
Liquid receiverwith liquidlevel watch
LW4-L120Alco Controls
B11
TT >> DLT Discharge line thermostat130 °C compressor1
B12
TT >> DLT Discharge line thermostat130 °C compressor2
B13
Connection forpressure relief valve
½" NPT
PSL
Mechanical low-pressure switchPS1
PS1-A3AAlco Controls
PSH
High-pressurecut-outdevice compressor1
PS3-W6SAlco Controls
PSH
High-pressurecut-outdevice compressor2
PS3-W6SAlco Controls
E1
Crankcase heatercompressor1
E2
Crankcase heatercompressor2
M1
High-efficiencydigital scroll compressor(ZBD*)
Compressor1
M2
High-efficiency standard scroll compressor(ZB*)
Compressor2
M3
High-efficiencyECfan
FN071-ZIQ
M4
High-efficiencyECfan
FN071-ZIQ
Y1
Digital controlsolenoid valve
Y3
TraxOil active oilmanagementdevicecompressor1
OM3-CCE
Y4
TraxOil active oilmanagementdevicecompressor2
OM3-CCE
1
Condenser
2
Liquid receiver
3
Filter dryer& sight glasscombination
AlcoControls
4
Oil separator
Table 7: Legendof the P&I diagram for OMTE-152Dmodels

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2.8.3 OLE-49 units
Figure 8: P&I Diagram OLE-49 models
Position
Description
Comments
B1
P1 Suction pressuretransducer(AI1)
PPR15
B2
P2 Condensing pressure transducer(AI2)
PPR30
B3
DLT Discharge line temperature sensor(AI3)
NTC 86K
B4
TT >> DLT Discharge line thermostat130 °C
B5
Liquid receiverwith liquidlevel watch
LW4-L120Alco Controls
B6
Ambienttemperature sensor(AI6)
NTC 10K
B7
Connection forpressure relief valve
½" NPT
PSL
Mechanical low-pressure switchPS1
PS1-A3AAlco Controls
PSH
High-pressurecut-outdevice
PS3-N15Alco Controls
E1
Crankcase heater
LIV
Liquid injectionvalve
AlcoControls
M1
High-efficiencyscrollcompressor(ZF*)
M2
High-efficiencycondenserECfan
FN071-ZIQ
1
Condenser
2
Liquid receiver
3
Filter dryer& sight glasscombination
AlcoControls
Table 8: Legendof the P&I diagram for OLE-49 models

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2.8.4 OLTE-82D units
Figure 9: P&I diagram for OLTE-82Dmodels
Position
Description
Comments
B1
P1 Suction pressuretransducer(AI1)
PPR15
B2
P2 Condensing pressure transducer(AI2)
PPR30
B3
DLT Discharge line temperature sensor(AI3)
NTC 86K
B6
Ambienttemperaturesensor(AI6)
NTC 10K
B7
Liquid receiverwith liquidlevel watch
LW4-L120Alco Controls
B11
TT >> DLT Discharge line thermostat130 °Ccompressor1
B12
TT >> DLT Discharge line thermostat130 °C compressor2
B13
Connection forpressure relief valve
½" NPT
PSL
Mechanical low-pressure switchPS1
PS1-A3AAlco Controls
PSH
High-pressurecut-outdevice compressor
PS3-W6SAlco Controls
E1
Crankcase heatercompressor1
E2
Crankcase heatercompressor2
M1
High-efficiencydigitalscroll compressor(ZFD*)
Compressor1
M2
High-efficiencystandardscroll compressor(ZF*)
Compressor2
M3
High-efficiencyECfan
FN071-ZIQ
M4
High-efficiencyECfan
FN071-ZIQ
Y1
Digital controlsolenoid valve
Y2
Solenoid valveused forliquid injection
Y3
TraxOil active oilmanagementdevicecompressor1
OM3-CCE
Y4
TraxOil active oil managementdevice compressor2
OM3-CCE
1
Condenser
2
Liquid receiver
3
Filter dryer& sight glasscombination
AlcoControls
4
Oil separator
Table 9: Legendof the P&I diagram for OLTE-82Dmodels

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2.9 Main components description
Figure 10: Main components of LOCU units
2.9.1 Bill of material 501 –General description
The standard bill of material for OMTE, OLE & OLTE units is 501. In general, these units have an
air-cooled condenser with 1 or 2 EC fansfor condensing temperature control.
For OMTE and OLTE units, a Tandem set of 2 scrollcompressors (ZB** forOMTE, ZF**for OLTE)
providestherequiredcoolingcapacity.Oneofthecompressorsisalwaysadigitalscroll,whichallows
modulation to very lowpart-load conditions.
The compressors in OLE and OLTE units have LIV technology inside.
All compressors are equipped with a high-efficiencysound shell for best sound performance.
An oil management system with a combined oil separator (including the reservoir) and oil injection
devices secure sufficientcompressor oil levels. Unit models OMTE-76D and OMTE-90D have only
the oil separator with oilreturn into the suction line.
An electronic controller XCM25D will handle suction pressure regulation, fan speed control in
standard and heat recovery conditions, as well as systemsafety. Main safety features provided by
the controller: compressoroil level control (onlyforOMTE-152D),discharge temperature protection,
voltage sensing, refrigerant chargelevel control and high- and low-pressure safety.
2.9.2 Bill of material 502 –General description
The BOM 502 version is only available forOMTE units.This version isprearranged for heat recovery
(HR). Mechanically the unit has connectionsfor external piping in the discharge line. An additional
ball valve between the 2 connection ports allows the manual activation of the heat recovery
functionality.
For heat recovery activation the controller settings have to be adjusted. The controller hardware
remains the same as in the standard unit.
All other featuresand equipment are the same as in version 501.
NOTE: Please refer to section 2.16 "Heat recovery mode–Optional" for more details.
2.9.3 Compressor
Unit
Standard scroll
compressor
Digital scroll
compressor
OMTE-76D-TFD
ZB38KCE-TFD-551
ZBD38KCE-TFD-551
OMTE-90D-TFD
ZB45KCE-TFD-551
ZBD45KCE-TFD-551
OMTE-152D-TFD
ZB76K5E-TFD-567
ZBD76K5E-TFD-567
OLE-49-TFD
ZF49K5E-TFD
OLTE-82D-TFD
ZF41K5E-TFD-567
ZFD41K5E-TFD-567
Table 10:Compressor model overview

12 AGL_Unit_LOCU_EN_Rev00
2.9.4 Electrical cabinet
Figure 11: Electrical cabinet
2.9.5 Condenser fan(s)
The condensers of the LOCU refrigeration units are equipped with electronically-commutated (EC)
external rotor motor with integrated EC controller:
▪Integrated motor contactor, active temperature management.
▪Interference emissions EN 61000-6-3.
▪Interference immunity EN 61000-6-2.
▪Protection rating IP20, IP54.
▪Satisfies IE4 (IEC60034-31) efficiency class.
▪Extremely energy-efficient thanksto EC technology.
▪Compact,modular design.
▪Straightforward installation and commissioning.
▪Flexible customer interface, easy to expand.
The fan type on LOCU units is FN071-ZIQ.DG.V7P3.
2.9.6 Housing
Copeland LOCU refrigeration units have the following housing features:
▪Redesigned electrical box, accessible via a hinged cover with two positions (45° & 90°).
▪Easy and service-friendly accesstocompressor compartment.
▪Easy and service-friendly accessto liquid receiver/filterdrier/sight glass area.
▪Easy cleaning of condenser section.
Figure 12: LOCU unit housing

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2.10 XCM25D Electronic controller–Features
The XCM25D controller is designed to be a powerful, flexible controller for use in multiple
applications.It has been developed for condensing units and allows the adjustment of all relevant
parameters by the user.
2.10.1 Description
WARNING
Electrical pins under voltage! Electrical shock hazard! There are unused
fast-on pins(C1 & DO2) on the XCM25D which could be under voltage.They
are covered by insulated fast-on flags in the factory. Handle carefully when
removing insulating flags during service on site.
The controlleris designedforusage in an outdoorrefrigeration unit. It is rated to be used for the
following environment:
▪Outdoor controllerambient temperature for controller operation: -40 to +60 C
▪Ambient temperature for storage: -40 to +80 C
▪Maximum humidity: 90 % at 48 C(non-condensing)
▪Board power: 24 V AC +15 % / -20 %
▪Voltage sensing capabilities: three phase 200-240, 380-460, 575 V AC ± 10 %
The units of measure are selectable.The factory defaultunit is bar (always considered relative) for
pressure and °C for temperature.
Figure 13: XCM25D Electronic controller
2.10.2 Functionality
The controllerallowsforeasycommissioningby thetechnicianwiththefactory settingsatthehighest
program level. It also offers the possibility to make substantial changesto the systemoptimization in
further programming levels. Advanced functionality can also be activated.
The following functionsare covered bythe controller:
▪refrigeration unit control, including tandem management;
▪condenser fan control;
▪voltage and current sensing (compressor protection);
▪digital compressor control;
▪Modbus/Canbus communication.
NOTE: The XCM25D controller includes all the functions necessary for the control of the
LOCU units. For additionalfunctionalities please contact your local ApplicationEngineering
representative.

14 AGL_Unit_LOCU_EN_Rev00
Figure 14: XCM25D controller functionality overview
2.10.3 Modbus Communication
The XCM25D controller can communicate via Modbus (RS-485) connection to provide all running
data. Additionalcommandscan also be activated through Modbus connection.The Modbus map is
available on request fromthe Application Engineering department at Emerson.
A pre-configured X-Web Supervisor device is also available and allows easy handling and
connectivitywith the XCM25D controller.
Figure 15: Modbus port andtermination jumpers
NOTE: If the XCM25D controller is connected in chain the termination jumpers must be
removed.
2.10.4 Main control & safety features
Suction pressure control: Each unit isequipped with a suction pressure transmitter. The XCM25D
controls the suction pressure by evaluating the inputsignal of the pressure transmitter. The suction
pressure regulation for LOCU units must be defined by the setpoint (C16) and proportional band
(C17). The signal of the suction pressure transmitter is also used foradditional functionalities.
Condensing pressure control: Each unit is equipped with a high-pressure transmitter. The
XCM25Dcontrolsthecondensingpressurebyregulatingthefanspeedcorrespondingtotheambient
temperature. The unit controller regulates the condensing pressure with a constant temperature
difference to the ambient ("floating HP"; factory setting E66 =8 K).
Differentcontrol options are available. As soon as fan modulation is enabled (E01 = "2-Modulated
fan") parameter E38 allows to choose "floating HP" (factory setting) or control of condensing
temperature inside compressor envelope. In this mode, the compressor can run differentminimum
condensing temperatures based on the suction pressure of the compressor. This is the most energy-
efficient way to minimize the condensing temperature as much as possible. However it also means
that the fan is running at full speed more often than in floating HP mode.
Automatic liquid injection on OLE & OLTE models: A mechanical injectionvalve (LIV) allows
liquid refrigerant tobeinjectedintothescrollset ofthecompressorto reducedischargetemperatures
generated when the unit operates at increasing compression ratios. There is a bulb on each
Condenser fan
control
Digital scroll
control
Superheatcontrol
Liquid injection
Alarm
management
Electrical
protection
Monitoring of the discharge
line temperature

AGL_Unit_LOCU_EN_Rev00 15
compressor top cap connected to the injection valve which allows individual regulation for each
compressor. On digital models a solenoid valve (normally closed NC) is energized in parallel to the
digital modulation solenoid valve to avoid injection during part-load conditions.The discharge line
protection is achieved with discharge line thermostats (B11 & B12; Klixon), installed directly on the
discharge pipe.
Compressor phase reversal: Ensures that the compressors keep running in one direction only
(clockwise = right rotation) –necessary foracompliant scrollcompressor to compressand pump
refrigerant.Reset isautomatic once the phase rotation is correct for the compressor.
Motor current overload protection: The motor current overload protection is achieved by
adjustable motor circuit breakers Q02 & Q03.
Fixed high-pressure switch: This is a non-adjustable protection device designed to prevent the
compressor from operating outside of its safe high-pressure range. Resetis automatic.
▪OMTE units: 28.8 barcut-out / 24 bar cut-in.
▪OLE units: 28.8 barcut-out / 24 bar cut-in.
▪OLTE units: 28.8 barcut-out / 24 bar cut-in.
The high-pressure cut-outdevice is in the same safety chain as the discharge line thermostat. The
alarm provided by the XCM25D does notindicate if itis high pressure or high discharge temperature
alarm.
Adjustable high-pressure limitation: The unit controller provides the possibility to stop the unit at
a critical discharge pressure which is lower than the cut-out value of the fixed high-pressure switch.
The high-pressure alarm value can be adjusted with parameter E58.
Discharge temperature protection: Each unit is equipped with discharge line thermostats (DLT).
The DLT’s are in the same safety chain as thehigh-pressure cut-out switchesand have a common
alarm. Each compressor has its own safety chain. In addition, there is a discharge line sensor
installed on the discharge pipe of the digital compressor. The controller is using the signalfromthis
sensor forcontrol purposesas well as safety functions.
Adjustable low-pressure alarm: The unit controller features an adjustable low-pressure alarm
managed by the suction pressure sensor. The factorysetting ofthis alarm is the lowest permitted
pressure of the refrigerant with thelowest pressure-vapourproperties. If needed the user can modify
this valueas pertherequired application.
▪OMTE units: 0.8 bar rel
▪OLE units: 0.3 bar rel
▪OLTE units: 0.3 bar rel
Adjustable low-pressure switch PS1: In case of controller breakdown, the low-pressure switch is
used for emergency operation (pre-wired rescue mode components). It must be adjusted based on
running conditions and possible special requirements. The compressor envelopes published in
Select must always be respected. Further information can be found in section 2.15 "Rescue mode
(emergency mode)".
In standard operation mode the low-pressure switch will work for both compressors as a protection
device.
Each crankcase heater is connected directly to the controller. The crankcase heater will be
energized when the ambient sensor is below a given value (10 °C)and the compressor has been off
for a period of 5 minutes.The minimumoff time doesnot apply at initial power up.
Liquid lineassembly: Composed of a filter dryerand a sight glass/moisture indicator.