40 Chapter 5 iCOM Controller
Liebert.PEX Chilled Water Series Air Conditioner User Manual
Table 5-6 Descriptions of SET ALARMS parameters
Parameters
Default
Setting range
Description
U202
RTN SNSR
Yes
Yes, No
Return air alarm enable
U203
HI TEMP
27°C
1°C ~ 99°C
High return air temperature alarm setpoint
U204
LO TEMP
18°C
1°C ~ 99°C
Low return air temperature alarm setpoint
U205
HI HUM
60%
1% ~ 99%
High return air humidity alarm setpoint
U206
LOW HUM
40%
1% ~ 99%
Low return air humidity alarm setpoint
U207
SENSOR A
No
Yes, No
Sensor A alarm enable
U208
HI TEMPA
50°C
1°C ~ 99°C
High temperature alarm setpoint of sensor A
U209
LO TEMPA
25°C
1°C ~ 99°C
Low temperature alarm setpoint of sensor A
U210
HI HUM A
70%
1% ~ 99%
High humidity alarm setpoint of sensor A
U211
LO HUM A
30%
1% ~ 99%
Low humidity alarm setpoint of sensor A
U213
SUP SNSR
No
Yes, No
Supply air alarm enable
U214
HI SUP T
24°C
1°C ~ 99°C
High supply air temperature alarm setting value
U215
LO SUP T
10°C
1°C ~ 99°C
Low supply air temperature alarm setting value
To browse through the menu, press the enter button to highlight the option, and use the up or down button to
scroll.
Password is required for changing the setpoints. Then, enter the SET ALARMS menu, press the enter button
to highlight the option, use the up or down button to browse the submenu. Press the enter button to enter the
selected parameter. Use the up or down button to change the setpoints, and press the enter button to save the
change, or press the ESC button to quit the change.
5.6.6 SENSOR DATA
You can monitor the data acquired by the sensors through the SENSOR DATA menu. The values are read only,
no setting or change is allowed. The parameters are described in Table 5-7.
Table 5-7 Descriptions of SENSOR DATA parameters
Parameters
Unit
Description
Parameters Unit
Description
U301 TEMP A
°C
Temperature of sensor A
U313 Hi Temp
°C
Daily high temperature
U302 HUM A
%
Relative humidity of
sensor A
U314 Lo Te H
h
Daily low temperature
(hour)
U303 TEMP B
°C
Temperature of sensor B
U314 Lo Te M
m
Daily low temperature
(minute)
U304 HUM B
%
Relative humidity of
sensor B
U314 Lo Te S
s
Daily low temperature
(second)
U305 TEMP C
°C
Temperature of sensor C
U314 Lo Temp
°C
Daily low temperature
U306 HUM C
%
Relative humidity of
sensor C
U315 Hi Hu H
h
Daily high humidity (hour)
U307 FC TEMP
°C
Free cooling
temperature
U315 Hi Hu M
m
Daily high humidity
(minute)
U308 AMB TEMP
°C
Outdoor temperature
U315 Hi Hu S
s
Daily high humidity
(second)
U309 FC STATE
-
Free cooling status
U315 Hi Humi
%
Daily high humidity
U310 DS1 TEMP
°C
Temperature of digital
scroll 1
U316 Lo Hu H
h
Daily low humidity (hour)
U311 DS2 TEMP
°C
Temperature of digital
scroll 2
U316 Lo Hu M
m
Daily low humidity (minute)
U313 Hi Te H
hr
Daily high temperature
(hour)
U316 Lo Hu S
s
Daily low humidity
(second)
U313 Hi Te M
m
Daily high temperature
(minute)
U316 Lo Humi
%
Daily low humidity
U313 Hi Te S
s
Daily high temperature
(second)
