Emerson Copeland EazyCool ZXME020E Application Manuallines page 27

2.11 Controller keyboard
2.11.1 How to lock the keyboard
Keep the and keys pressed simultaneously for more than 3 seconds. The "PoF" message
will be displayed and the keyboard will be locked. At this point it is only possible to see the setpoint
or the maximum or minimum temperatures stored. If a key is pressed for more than 3 seconds, the
"PoF" message will be displayed.
2.11.2 How to unlock the keyboard
Keep the and keys pressed simultaneously for more than 3 seconds, till the "Pon" message
is displayed.
2.12 Parameters level 1 – Required settings
The XCM25D is preconfigured to reduce the required settings on job-site to a minimum. In most
cases, it will not be necessary to enter programming level 2 "Pr2". Table 20 gives an overview of
the parameters available in programming level 1 "Pr1".
NOTE: When changing parameters C01 (Cin), C02 (CoU) and C05 (CPb) a reset of the
controller (interruption of power supply) is required.
Parameter Description
Compressor cut-in pressure
C01
setpoint
Compressor cut-out pressure
C02
setpoint
Refrigerant selection for
C07
regulation
C16 Digital compressor setpoint
Proportional band for
C17
compressor regulation
Cycle time for digital
C21
compressor
Minimum capacity for digital
C24
compressor
Maximum capacity for digital
C25
compressor
Low-pressure alarm value (from
D29
S/N 16EZ08855M onwards)
E39 Condenser setpoint
E46 Regulation band of variable fan
N01 Current minute
N02 Current hour
N03
Day of the month
N04 Month
N05 Year
T18 Access to Pr2 level
Table 20: Parameters in programming level Pr1
NOTE: The full list of parameters in programming level "Pr2" can be found in Appendix 5.
22
Factory
Unit
settings
[bar] 4.0
[bar] 2.0
R22, R407A, R407F,
[-] R404A R507, R448A, R449A,
[bar] 3.3
[bar] 2.0
[sec] 10
[%] 20
[%] 100
[bar] 0.5
[°C] 35.0
[°C] 10.0
[-] [-]
[-] [-]
[-] [-]
[-] [-]
[-] [-]
[-] [-]
Comments
Not used for
Digital ZXDE
Not used for
Digital ZXDE
R134a, R407C
Not used for
ZXME & ZXLE
Not used for
ZXME & ZXLE
Not used for
ZXME & ZXLE
Not used for
ZXME & ZXLE
Not used for
ZXME & ZXLE
Password: 3 2 1
C6.1.6/0117-1017/E