Xcm25D Electronic Controller - Programming; Programming The Local Display; Figure 12: Local Display - Emerson Copeland Eazycool OMTE-90D-TFD Application Manuallines

the discharge pipe of the digital compressor. The controller is using the signal from this sensor for
control purposes as well as safety functions.
Adjustable low-pressure alarm: The unit controller features an adjustable low-pressure alarm
managed by the suction pressure sensor. The factory setting of this alarm is the lowest permitted
pressure of the refrigerant with the lowest pressure-vapour properties. If needed the user can modify
this value as per the required application.
▪
OMTE models:
▪
OLTE models:
Adjustable low-pressure switches PS1: In case of controller breakdown, the low-pressure switch
is used for emergency operation (prewired rescue mode components). It must be adjusted depending
on running conditions and potential special requirements. The compressor envelopes published in
Select must always be respected. Further information can be found in chapter 2.13 "Rescue mode
(emergency mode)".
In standard operation mode the low-pressure switch will work for both compressors as a protection
device.
The crankcase heater(s) 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 minimum off time does not apply at initial power up.
Liquid line assembly: filter drier and sight glass/moisture indicator.
XCM25D Electronic controller – Programming
2.9
CAUTION
Low refrigerant charge! Compressor damage! Never energize the
unit/controller without minimum refrigerant system charge. There is a risk of
malfunction of the controller in deep vacuum operation which can cause
compressor damage.
2.9.1

Programming the local display

Figure 12: Local display

LED Mode
On
Flashing
On
On
Flashing
On
Flashing
On
Flashing
On
Flashing
On
C6.1.9/0219/E
0.8 bar rel
0.3 bar rel
Function
Compressor 1 enabled
Anti-short cycle delay enabled
Condensing fans enabled
Bar display
Programming mode
PSI display
Programming mode
When browsing the service menu
In fast access menu
When browsing the alarm menu
A new alarm occurred
An alarm is occurring
13