Emerson Copeland EazyCool Series Bedienungsanleitung

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

Compressor 1 enabled

Flashing

Anti-short cycle delay enabled

Condensing fans enabled

Bar display

Flashing

Programming mode

PSI display

Flashing

Programming mode

When browsing the service menu

Flashing

In fast access menu

When browsing the alarm menu

Flashing

A new alarm occurred

An alarm is occurring

Digital unloader solenoid On

In defrost

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

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

Select the parameter or submenu using the arrows.

Show value

Press the SET button.

Modify

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]

C24

Minimum capacity for digital

compressor

[%]

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

Required value

E61

Condenser temperature / Pressure threshold for

alarm recovery

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".

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