Emerson Copeland EazyCool Series User manual

CC7.8.15/1019/E Ident number 3272062 –P/N 052-3306-00/Rev00 1/2
Date of last update: Oct-19
Ref: CC7.8.15/1019/E
Application Engineering Europe
LARGE OUTDOOR CONDENSING UNITS – QUICK INSTALLATION GUIDE
1. Install the condensing unit according to Application Guidelines C6.1.9 "Copeland EazyCool™Large Outdoor
Condensing Units".
2. Prefill the unit with refrigerant and set all valves into the operating position.
3. Set up the unit controller (XMC25D) for the required application.
NOTE: The value of parameter D29 must be lower than the value C16-C17/2 (unit switching-off point) to avoid
the low-pressure alarm.
NOTE: The liquid line in OL(T)E units must be insulated to avoid air-moisture condensation and lack of
performance.
The XMC25D controller provides 2 programming levels:
▪Pr1 with direct access
▪Pr2 protected with a password: 321 (intended for experts)
Explanation of LED functionalities:
LED
Mode
Function
On
Compressor 1 enabled
Flashing
Anti-short cycle delay enabled
On
Condensing fans enabled
On
Bar display
Flashing
Programming mode
On
PSI display
Flashing
Programming mode
On
When browsing the service menu
Flashing
In fast access menu
On
When browsing the alarm menu
Flashing
A new alarm occurred
On
An alarm is occurring
On
Digital unloader solenoid On
On
In defrost
On
Evaporator fans - Liquid line solenoid valve On
How to program the "Pr1" parameters:
Access pre-
program level
Press simultaneously for about 3 seconds to access the pre-programming
level. The message rtC (real time clock) is displayed.
Access
program level
or
Press the Up or Down key until the message Par is displayed.
Access Pr1
Press the SET button to enter the program level. First parameter C01 is
displayed.
Select item
or
Select the parameter or submenu using the arrows.
Show value
Press the SET button.
Modify
or
Use the arrows to modify the value.
Confirm and
store
Press the SET button: the value will blink for 3 seconds, then the display
will show the next parameter.
EXIT
Press simultaneously to exit the programming mode, or wait
for 30 seconds (MTO) without pressing any key.

CC7.8.15/1019/E Ident number 3272062 –P/N 052-3306-00/Rev00 2/2
When entering the programming level for the first time the display will show the rtC (real time clock) label.
▪Press to access parameters N01/02/03/04/05 to adjust time & date. For further details see the condensing
unit application guidelines, chapter 2.11 "Parameters level 1 –Required settings".
▪Press or to change from the rtC label to the Parlabel, in order to access the programming level 1.
▪Press : the parameters of programming level 1 can be changed.
The following "Pr1" parameters must be verified before commissioning:
Parameter
Description
Unit
Factory
settings
Comments
C07
Refrigerant selection for
regulation
[-]
R449A
R22, R407A, R407F, R507,
R448A, R449A, R134a,
R407C
C16
Digital compressor setpoint
[bar*]
2.8
0.3 for OLTE/OLE units
C17
Proportional band for
compressor regulation
[bar*]
2.0
1.0 for OLTE/OLE units
C21
Cycle time for digital
compressor
[sec]
10
C24
Minimum capacity for digital
compressor
[%]
10
C25
Maximum capacity for digital
compressor
[%]
100
D29
Low-pressure alarm value
[bar*]
0.8
0.3 for OLTE/OLE units
E39
Condenser setpoint
[°C]
35.0
E46
Regulation band of variable fan
[°C]
20.0
N01
Current minute
[-]
[-]
N02
Current hour
[-]
[-]
N03
Day of the month
[-]
[-]
N04
Month
[-]
[-]
N05
Year
[-]
[-]
T18
Access to Pr2 level
[-]
[-]
Password: 3 2 1
* Pressures are always relative
Adjustable discharge pressure limitation: The controller has dedicated parameters to provide the possibility of
adjustable discharge pressure cut-out.
Parameter
Description
Factory
settings
Recommended
settings
E58
Condenser temperature / Pressure threshold for high
alarm
27
Required value
E61
Condenser temperature / Pressure threshold for
alarm recovery
23
Required value
NOTE: Error L21 can happen during first commissioning. This lockout indicates a wrong phase sequence.
In this case two phases at the power supply terminals must be changed.
NOTE: This guide is for quick installation purposes. For detailed instructions, please refer to Application
Guidelines C6.1.9 "Copeland EazyCool™ Large Outdoor Condensing Units".