42 Chapter 5 iCOM Controller
Liebert. PEX+Series Precision Air Conditioner User Manual
C1 ACT, C2 ACT, C3 ACT and C4 ACT correspond to the customer alarms. ‘OPEN’ means normally open, ‘CLOSE’
means normally closed.
Alarm delays setting
The alarm delays are the time after faults occur and before the alarms are triggered. See Figure 5-10 for the menu
format.
Figure 5-10 Alarm delay
The alarm name, delay time, delay enabling and alarm type are displayed from left to right in the list.
The alarm delay can be set to 0 ~ 9999. Unit: second.
The delay enabling determines whether the alarm will be displayed and the alarm menu is entered, Options include
‘Yes’ and ‘No’.
The alarm type can be set to ‘ALM’ (alarm), ‘WRN’ (warning) and ‘MSG’ (message). They determine the alarm degree
of the corresponding event.
The alarm names are listed in Table 5-26.
Table 5-26 Alarm name description
High temperature of sensor A
Low temperature of sensor A
High humidity of sensor A
Compressor 1 high pressure
Compressor 2 high pressure
Compressor 1 low pressure
Compressor 2 low pressure
Compressor 1 pumpdown fails
Compressor 2 pumpdown fails
Digital scroll 1 high temperature
Digital scroll 2 high temperature
High supply air temperature
Conderser pump high water
Low supply air temperature
2/10
S236
S237
S238
S239
S240
S241
FOL
LOA
CF
HRT
LRT
HRH
DEL EN
T
5
3
2
30
30
30
Yes
Yes
Yes
Yes
Yes
Yes
ALM
ALM
WRN
WRN
WRN
WRN
01SET ALARMS