
Date of last update: Feb-20
Application Engineering Europe
COPELAND EAZYCOOL™ ZX CONDENSING UNITS
XCM25D CONTROLLER PARAMETER LIST
Copeland EazyCool™ ZX Condensing Units are equipped with an XCM25D electronic controller from Dixell. The controller design allows the installer to start
and operate the system with minimum effort in terms of controller adjustments. The most important controller settings are described in the application
guidelines and most likely there is no need to change those settings.
In case of special applications additional parameters might have to be adjusted according to those special needs. This document contains the full list of
available parameters in the XCM25D controller. It is not a user’s manual. For questions about how to handle the controller and for functionality description
please refer to the dedicated documentation available at www.climate.emerson.com/en-gb.
Legend
L1 = Parameter in level 1 (without password)
L2 = Parameter in level 2 (with password = 3 2 1)
N.V. = Parameter not accessible
NOTE: When changing parameters C01 (Cin), C02 (CoU) and C05 (CPb) a reset of the controller (interruption of power supply) is required.
Not used (0-NU)
Suction pressure (0-5V)(1-SUP)
Start of scaling for probe 1 (0-5V)
0-5V: -1.5 bar to P1E; -21 PSI to P1E
End of scaling for probe 1 (0-5V)
0-5V: P1i to 99.9 bar; P1i to 999 PSI
0-5V: -12.0 to 12.0 bar; -12.0 to12.0 PSI
Probe P1 reading error delay (P1C = 0-5V)
Not used (0-NU)
Mid-coil temperature (NTC10K)(1-MCT)
Mid-coil pressure (0-5V)(2-MCP)

Start of scaling for probe 2
0-5V: -1.5 bar to P2E; -21 PSI to P2E
NTC10K: -40°C to P2E
End of scaling for probe 2
0-5V: P2i to 99.9 bar; P2i to 999 PSI
NTC10K: P2i to 110°C
0-5V: -12.0 to 12.0 bar; -12.0 to 12.0 PSI
NTC10K: -12°C to 12°C
Probe P2 reading error delay (P2C=0-5V)
Not used (0-NU)
Discharge line temperature (1-DLT)
Discharge line
temperature
Not used (0-NU)
Ambient temperature (NTC10K)(1-AMT)
Thermostat temperature (NTC10K)(2-TMT)
Vapour inlet temperature (NTC10K)(3-UIT)
Vapour outlet temperature (NTC10K)(4-UOT)
Evaporator temperature (NTC10K)(5-EPT)
Liquid temperature (NTC10K)(6-LLT)
Suction line temperature (7-SLT)
Coil temperature (8-COT)
Not used (0-NU)
Ambient temperature (NTC10K)(1-AMT)
Thermostat temperature (NTC10K)(2-TMT)
Vapour inlet temperature (NTC10K)(3-UIT)
Vapour outlet temperature (NTC10K)(4-UOT)
Evaporator temperature (NTC10K)(5-EPT)
Liquid temperature (NTC10K)(6-LLT)
Suction line temperature (7-SLT)
Coil temperature (8-COT)

Not used (0-NU)
Ambient temperature (NTC10K)(1-AMT)
Thermostat temperature (NTC10K)(2-TMT)
Vapour inlet temperature (NTC10K)(3-UIT)
Vapour outlet temperature (NTC10K)(4-UOT)
Evaporator temperature (NTC10K)(5-EPT)
Liquid temperature (NTC10K)(6-LLT)
Suction line temperature (7-SLT)
Coil temperature (8-COT)
Ambient temperature
(NTC10K)
Not used (0-NU)
Ambient temperature (NTC10K)(1-AMT)
Thermostat temperature (NTC10K)(2-TMT)
Vapour inlet temperature (NTC10K)(3-UIT)
Vapour outlet temperature (NTC10K)(4-UOT)
Evaporator temperature (NTC10K)(5-EPT)
Liquid temperature (NTC10K)(6-LLT)
Suction line temperature (7-SLT)
Coil temperature (8-COT)
Delay before activating probe error
Measurement unit for pressure
Bar (0-BAR) – PSI (1-PSI) – KPA (2-TPA)
Measurement unit for temperature
Remote display visualization
P1 (0-P1) - P2 (1-P2) - P3 (2-P3) P4 (3-P4) - P5 (4-P5) - P6 (5-P6) P7 (6-P7) – Per (7-PER) – Aou (8-AOU)
Filter enabling for probe reading
Coefficient for probe reading filter (0 =
max,100 = disable)
Compressor cut-in pressure setpoint
Compressor cut-out pressure setpoint
Minimum setpoint for suction
pressure/temperature

Maximum setpoint for suction
pressure/temperature
Compressor regulation probe selection
NU (0-NU)
Suction pressure probe (1-SUP)
Case temperature (2-CST)
Suction pressure switch (3-dIS)
EXV closing time before compressor off
Refrigerant selection for regulation
R404A (0-404) - R507 (1-507)
R134a (2-134) - R22 (3-R22)
R407C (4-07C) - R407A (5-07A)
R407F (6-07F) - R448A (7-48A)
R449A (8-49A)
NU (0-NU)
Small offset (1-SOF)
Medium offset (2-MOF)
Large offset (3-LOF)
LAO (4-FOF)
Ambient temperature operation setpoint
Pressure/Temperature operation for ambient
differential
0.0 to 9.9 bar; 0.0 PSI to 99.9 PSI
0.0°C to 25.5°C
Ambient temperature recover differential
Ambient temperature threshold for low
ambient operation
Temperature/Pressure to end low ambient
timer and resume normal operation
-40°C to 110°C
-1.5 to 99.9 bar; -21 to 999 PSI
Compressor minimum on time in low ambient
operation
Pressure to end low ambient timer and shut
off the compressor
-1.5 to 99.9 bar; -21.0 to 999 PSI
Digital compressor setpoint
Proportional band for compressor regulation
0.1 to 9.9 bar; 0.1 to 99.9 PSI; 0.1°C to 25.5°C
Band offset for compressor regulation
0 to 9.9 bar; 0 to 99.9 PSI; 0.0°C to 25.5°C

Start-up time: interval time with digital valve
energized before regulation starts
Cycle time for digital compressor
Safety value for PI regulator (in case of probe
error)
Number of active compressor when probe
error
Minimum capacity for digital compressor
Maximum capacity for digital compressor
Time with DGS at PMA before starting another
load
Time with DGS at PMi before switching off
another load
Disable (0-NO) - Enable (1-YES)
Disable (0-NO) - Enable (1-YES)
Disable (0-NO) - Enable (1-YES)
Disable (0-NO) - Enable (1-YES)
Disable (0-NO) - Enable (1-YES)
Disable (0-NO) - Enable (1-YES)
Disable (0-NO) - Enable (1-YES)
Disable (0-NO) - Enable (1-YES)
Disable (0-NO) - Enable (1-YES)
Disable (0-NO) - Enable (1-YES)
Compressor regulation control signal
Pressure (0-PRS) - temperature (1-TMP)
Compressor On time with faulty probe
Compressor Off time with faulty probe
Minimum time between two starts (same
compressor)

Delay between compressor switch-off and
start-up (same compressor)
Delay between two different loads start-up
[0÷99.5] min, resolution 10 sec
Delay between two different loads switch-off
[0÷99.5] min, resolution 10 sec
Minimum time a stage stays switched on
[0÷99.5] min, resolution 10 sec
Maximum time a stage stays switched on
[0.00÷24.00] hours, resolution 10 min
don delay enabled also for the first request
doF delay enable also for the first switching off
Low suction pressure alarm delay
Low suction pressure error signal enabling
Compressor minimum off time for highpressure switch protection
Number of high-pressure switch activations
before compressor lockout
Bump start ambient threshold
Compressor stop time for next bump start
0 hour to 23 hours and 50 minutes
Compressor on time during bump function
Compressor off time during bump function
Number of cycles during bump start
DLT alarm temperature to stop compressor
DLT alarm recover temperature to turn on
compressor
DLT alarm activation delay
Compressor minimum off time for DLT Alarm
Number of DLT alarm activations before
compressor lockout
Time to ignore low DLT sensor error at startup

Compressor minimum off time for lowpressure switch protection
Low-pressure alarm value (from serial number
16EZ08855M onwards)
DLT temperature threshold to trip during cold
start
Suction pressure threshold to trip during cold
start
Allowed number of cycles of DLT temperature
trips during cold start
Allowed number of cycles of low-pressure trips
during cold start
Compressor stop time during cold start
Condenser fan motor modulation type
Not used (0-NU)
Fan cycling (1-CYC)
Modulated fan (2-MOD)
Low setpoint for condenser fan map 1 (for
R404A, R507)
Lower suction pressure point for condenser
fan map 1 (for R404A, R507)
-1.5 bar to HP1; -21 PSI to HP1
High setpoint for condenser fan map 1 (for
R404)
High suction pressure point for condenser fan
map 1 (for R404A, R507)
LP1 to 99.9 bar; LP1 to 999 PSI
Low setpoint for condenser fan map 2 (for
R134)
Lower suction pressure point for condenser
fan map 2 (for R404)
-1.5 bar to HP2; -21 PSI to HP2
High setpoint for condenser fan map 2 (for
R134)
High suction pressure point for condenser fan
map 2 (for R404)
LP2 to 99.9 bar; LP2 to 999 PSI

Low setpoint for condenser fan map 3 (for
R22)
Low suction pressure point for condenser fan
map 3 (for R22)
-1.5 bar to HP3; -21PSI to HP3
High setpoint for condenser fan map 3 (for
R22)
High suction pressure point for condenser fan
map 3 (for R22)
LP3 to 99.9 bar; LP3 to 999 PSI
Low setpoint for condenser fan map 4 (for
R407C)
Lower suction pressure point for condenser
fan map 4 (for R404)
-1.5 bar to HP4; -21 PSI to HP4
High setpoint for condenser fan map 4 (for
R407C)
High suction pressure point for condenser fan
map 4 (for R404)
LP4 to 99.9 bar; LP4 to 999 PSI
Low setpoint for condenser fan map 5 (for
R407A)
Low suction pressure point for condenser fan
map 5 (for R407A)
-1.5 bar to HP5; -21 PSI to HP5
High setpoint for condenser fan map 5 (for
R407A)
High suction pressure point for condenser fan
map 5 (for R407A)
LP5 to 99.9 bar; LP5 to 999 PSI
Low setpoint for condenser fan map 6 (for
R407F)
Low suction pressure point for condenser fan
map 6 (for R407F)
-1.5 bar to HP6; -21 PSI to HP6
High setpoint for condenser fan map 6 (for
R407F)
High suction pressure point for condenser fan
map 6 (for R407F)
LP6 to 99.9 bar; LP6 to 999 PSI
Low setpoint for condenser fan map 7 (for
R448A)

Low suction pressure point for condenser fan
map 7 (for R448A)
-1.5 bar to HP7; -21 PSI to HP7
High setpoint for condenser fan map 7 (for
R448A)
High suction pressure point for condenser fan
map 7 (for R448A)
LP7 to 99.9 bar; LP7 to 999 PSI
Low setpoint for condenser fan map 8 (for
R449A)
Low suction pressure point for condenser fan
map 8 (for R449A)
-1.5 bar to HP8; -21 PSI to HP8
High setpoint for condenser fan map 8 (for
R449A)
High suction pressure point for condenser fan
map 8 (for R449A)
LP8 to 99.9 bar; LP8 to 999 PSI
Low setpoint for condenser fan map 9 (for
R410A)
Low suction pressure point for condenser fan
map 9 (for R410A)
-1.5 bar to HP9; -21 PSI to HP9
High setpoint for condenser fan map 9 (for
R410A)
High suction pressure point for condenser fan
map 9 (for R410A)
LP9 to 99.9 bar; LP9 to 999 PSI
Fan setpoint modulation enabling
Condenser temperature setpoint when fan
setpoint modulation is disabled
Minimum condenser temperature setpoint
High ambient fan motor override enabled
High ambient fan motor override differential
High DLT fan motor override enabled
High DLT fan motor override differential

Regulation band of variable fan
Fan full speed duration at fan start-up
Fixed condenser fan setpoint
Fan 1 to fan 2 differential
Fan control with ambient sensor - Min ambient
Fan control with ambient sensor - Max
ambient
Fan speed control with ambient sensor
Condenser temperature/pressure threshold for
high alarm
-40°C to 110°C
-1.5 to 99.9 bar; -21 to 999 PSI
High condenser temperature alarm delay
High condenser temperature alarm with
compressor off
Condenser temperature/pressure threshold for
alarm recovery
-40°C to E58°C
-1.5 to E58 bar; -21 to E58 PSI
Liquid injection setpoint
Max DLT temperature before full open
injection
Min DLT temperature before close injection
Mid-coil limp-along for DLT failure - Mid-coil 1
Mid-coil limp-along for DLT failure - Mid-coil 2
Mid-coil limp-along for DLT failure - Mid-coil 3
Mid-coil limp-along for DLT failure - Mid-coil 4
Mid-coil limp-along for DLT failure - Mid-coil 5

Mid-coil limp-along for DLT failure - Valve
opening 1
Mid-coil limp-along for DLT failure - Valve
opening 2
Mid-coil limp-along for DLT failure - Valve
opening 3
Mid-coil limp-along for DLT failure - Valve
opening 4
Mid-coil limp-along for DLT failure - Valve
opening 5
Ambient limp-along for DLT and mid-coil
failure - Temperature 1
Ambient limp-along for DLT and mid-coil
failure - Temperature 2
Ambient limp-along for DLT and mid-coil
failure - Valve opening 1
Ambient limp-along for DLT and mid-coil
failure - Valve opening 2
EVI EXV initial opening – Ambient 1
EVI EXV initial opening – Ambient 2
EVI EXV initial opening – Ambient 3
EVI EXV initial opening – Ambient 4
EVI EXV initial opening – Valve opening 1
EVI EXV initial opening – Valve opening 2
EVI EXV initial opening – Valve opening 3
EVI EXV initial opening – Valve opening 4
EVI EXV initial opening – Valve opening 5
EVI EXV initial opening with sensor failure
Differential between the vapour inlet and the
vapour outlet temperature for R404A

Differential between the vapour inlet and the
vapour outlet temperature for R507
Differential between the vapour inlet and the
vapour outlet temperature for R134a
Differential between the vapour inlet and the
vapour outlet temperature for R22
Differential between the vapour inlet and the
vapour outlet temperature for R407C
Differential between the vapour inlet and the
vapour outlet temperature for R407A
Differential between the vapour inlet and the
vapour outlet temperature for R407F
Differential between the vapour inlet and the
vapour outlet temperature for R448A
Differential between the vapour inlet and the
vapour outlet temperature for R449A
Differential between the vapour inlet and the
vapour outlet temperature for R410A
Max DLT temperature before changing from
vapour to liquid injection control
Differential before resuming vapour injection
Max open EXV warning time
Delta between setpoint and shortage of
refrigerant error during max open warning
Constant liquid temperature mode enabled for
low ambient EVI injection
Constant liquid temperature setpoint
Constant liquid temperature enable
temperature

Case temperature probe selection
NU (0-NU)
Mid-coil temperature (1-MCT)
Discharge line temperature (2-DLT)
Ambient temperature (3-AMT)
Thermostat temperature (4-TMT)
Evaporator temperature (5-EPT)
Vapour inlet temperature (6-UIT)
Vapour outlet temperature (7-UOT)
Liquid temperature (8-LLT)
Suction line temperature (9-SLT)
Coil temperature (10-COT)
Case temperature setpoint
Case temperature differential
Case temperature low range
Case temperature high range
Case probe failure limp-along on time
Case probe failure limp-along off time
Compressor and fan status when open door
>> no = normal operation; Fn = Fans off;
cP = Compressor off; Fc = Compr. & fans off
no (0-NO)
Fn (1-FAN)
cP (2-CPR)
Fc (3-F-C)
Regulation with open door
Liquid/vapour injection switch based on SH
activation

nu (0-NU)
Mid-coil temperature (1-MCT)
Discharge Line temperature (2-DLT)
Ambient temperature (3-AMT)
Thermostat temperature (4-TMT)
Evaporator temperature (5-EPT)
Vapour inlet temperature (6-UIT)
Vapour outlet temperature (7-UOT)
Liquid temperature (8-LLT)
Suction line temperature (9-SLT)
Coil temperature (10-COT)
Defrost in probe selection
Defrost out probe selection
Threshold percentage to enable intelligent
defrost
Duration to calculate the average difference
between the diP and doP
EL (0-EL)
in (1-IN)
Pulse (2-PLS)
Interval between defrost cycles
Maximum length for defrost
Duration of pulse defrost
Defrost termination temperature
nu (0-NU)
in (1-IN)
rtC (2-rtC)
Intelligent (3-INT)
Display during defrost
dEF = Defrost;
Set = Setpoint case temp;
it = Case temp;
rt = Display in standard operation
dEF (0-DEF)
Set (1-SET)
it (2-IT)
rt (3-RT)
Maximum display delay after defrost

SUN (0-SUN)
MON (1-MON)
TUE (2-TUE)
WED (3-WED)
THU (4-THU)
FRI (5-FRI)
SAT (6-SAT)
nu (7-NU)
Fans operating mode
cn = Parallel to compressor, off during defrost;
on = Fans always on, only off during defrost;
cy = Parallel to compressor, on during defrost;
oy = Fans permanently in operation
cn (0-CN)
on (1-ON)
cy (2-CY)
oy (3-OY);
Temperature differential avoiding short cycles
of fans

Room probe selection for evaporator fan
management
NU (0-NU)
Mid-coil temperature (1-MCT)
Discharge line temperature (2-DLT)
Ambient temperature (3-AMT)
Thermostat temperature (4-TMT)
Maximum case temperature alarm threshold
Minimum case temperature alarm threshold
Case temperature alarm restart differential
Case temperature alarm delay
Exclusion of temperature alarm at start-up
Maximum door open time before alarm
Maximum length for light when door switch is
closed
Use the liquid line solenoid
Voltage and current protection enabled
Maximum continuous current limit
3PE = 0: 0.0 to 70.0 A
3PE = 1: 0.0 to 35.0 A
Voltage/current sensing trip minimum off time
Adjustable current limit before trip
Ignore current sensing duration at start-up
duration
Number of over current trips before lockout
Number of loss of phase trips before lockout

Minimum voltage to trip compressor
Maximum voltage to trip compressor
Over or under voltage minimum time
Compressor minimum off time because of
voltage error
Number of compressor trips before lockout
because of voltage
Adjustable under average voltage percentage
Generate warning or shut down compressor
when phase imbalance
0: Generate warning (0-ARN)
1: Unit off(1-Off)
Missing current duration before warning
Minimum high side superheat
Amount of time allowed in an interval to check
for floodback
Interval to check for floodback
Duration of checking anti-floodback alarm
reset condition
Ambient temperature threshold to off
crankcase heater
Compressor minimum off time before turning
the crankcase heater on
Steps for initial regulation
Threshold of low superheating
Threshold of high superheating
Extra % of valve close in case of low
superheating

Steps close/open in case of MOP/LOP
Extra steps of valve close
Regulation of the valve 0: automatic,
1: manual
Automatic (0-AUT)
Manual (1-MAN)
Steps if manual regulation
Proportional band (if 0 the regulation is auto
adaptive)
Interval of updating valve
Filter on the temperature [1-100] sec
Activation delay probe error
% valve in case of probe error
Time at initial steps at the start time

Compressor setpoint hysteresis in energy
saving mode
0.0 to 9.9 bar; 0. to 99.9 PSI;
0.0°C to 25.5°C
Condenser setpoint hysteresis in energy
saving mode
Not used (0-NU)
Suction pressure switch (1-SUS)
Thermostat input (2-DEF)
High-pressure input (3-HP)
Low-pressure input (4-LP)
Door switch (5-DOR)
Energy saving enable (6-ES)
On/Off (7-ONF)
Activation delay for digital input 1
Not used (0-NU)
Suction pressure switch (1-SUS)
Thermostat input (2-DEF)
High-pressure input (3-HP)
Low-pressure input (4-LP)
Door switch (5-DOR)
Energy saving enable (6-ES)
On/Off (7-ONF)
Activation delay for digital input 2

Not used (0-NU)
Suction pressure switch (1-SUS)
Thermostat input (2-DEF)
High-pressure input (3-HP)
Low-pressure input (4-LP)
Door switch (5-DOR)
Energy saving enable (6-ES)
On/Off (7-ONF)
Activation delay for digital input 3
Alarm contact activation in a warning, alarm,
lockout
Warning (0-ARN) - Alarm (1-ALM) Lockout (2-LOC)
Relay output 1 configuration
Not used (0-NU)
DGS compressor (1-DGS)
On-Off compressor (2-CPR)
Condenser fan 1 (3-CF1)
Condenser fan 2 (4-CF2)
Evaporator fan (5-EPF)
Defrost (6-DEF)
Liquid line solenoid (7-LLS)
Crankcase heater (8-HTR)
Alarm (9-ALM)
Light (10-LIG)
Relay output 2 configuration
Relay output 3 configuration
Digital Scroll
compressor
Relay output 4 configuration
Relay output 5 configuration
Triac output 1 configuration
Not used (0-NU)
Digital solenoid (1-DGT)
Wave-form chopper for fan speed (2-PCF)
PWM fan speed (3-PEF)
0-10V (4-UEF)
Triac output 2 configuration
Not used (0-NU)
Digital solenoid (1-DGT)
Wave-form chopper for fan speed (2-PCF)
Wave-form chopper
for fan speed

Not used (0-NU)
Liquid injection EXV (1-LIN)
EVI EXV (2-UIN)
System EXV (3-SHT)
Period time of menu exit without pressing any
key
Time for showing firmware version at start-up
Time for showing program name at start-up
EEPROM map identification

CC7.8.17/0220/E 22/22
DISCLAIMER
1. The contents of this publication are presented for informational purposes only and are not to be construed as warranties or guarantees, express or implied,
regarding the products or services described herein or their use or applicability.
2. Emerson Climate Technologies GmbH and/or its affiliates (collectively "Emerson"), as applicable, reserve the right to modify the design or specifications
of such products at any time without notice.
3. Emerson does not assume responsibility for the selection, use or maintenance of any product. Responsibility for proper selection, use and maintenance
of any Emerson product remains solely with the purchaser or end user.
4. Emerson does not assume responsibility for possible typographic errors contained in this publication.