Chapter1 Overview 1
Liebert. PEX+Series Precision Air Conditioner User Manual
Chapter 1 Overview
The Liebert.PEX+ series precision air conditioner
(“Liebert.PEX+” for short hereafter) is professional equipment, which
should not be accessible to the general public. The Liebert.PEX+ is a medium-large size precision environment control
system, suitable for the environment control of the equipment room or computer room, featuring high reliability, high
sensible heat ratio and large air flow. This chapter introduces the model description, appearance, main components
and optional parts.
1.1 Model Description
The model description of Liebert.PEX+ is shown in Figure 1-1.
Figure 1-1 Model description
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
P
1
0
5
0
D
A
1
3
S
H
S
1
2
E
1
D
0
0
0
P
A
0
0
0
Digit1 Product model
N
Dual Cool Coil,BPHE-2way,CW-3 way,TXV
P
PEX+
P
Dual Cool Coil,BPHE-3way,CW-2 way,TXV
Digit2 Product model
Digit16 Enclosure options
1-2 Number of Modules/Bays
1
Standard Color black orange peel grain coating
Digit3 Cooling Capacity kW
2
White orange peel grain coating
0-9 Nominal Net Cooling Capacity - kW
6
Color Charcoal grey w/Double skin
Digit4 Cooling Capacity kW
Digit17 Mains Switch High Voltage Option
0-9 Nominal Net Cooling Capacity - kW
0
None
Digit5 Cooling Capacity kW
D
Main non-Locking Disconnect
0-9 Nominal Net Cooling Capacity - kW
P
Dual Power Supply Parallel
Digit6 Air Discharge
A
Dual Power Supply Auto Alternate(Interlocking contactor)
U
Upflow
T
Dual Power Supply Auto Alternate(ATS)
D
Downflow
Digit18 Lock Out Low Voltage Option
Digit7 System type
0
None
A
Air cooled
H
Reheat & Humidity Lockout
W
Water cooled
Digit19 Monitoring
D
Dual Cool-Chilled water+Air cooled
0
No Card
H
Dual Cool-Chilled water+Water cooled
7
IS-UNITY Card
Digit8 Fan
C
ICOM DO Card
1
EC plug fan
U
IS-UNITY Card & ICOM DO Card
Digit9 Power Supply
Digit20 Sensors
3
380-415V / 3ph / 50Hz+N
0
None
T
380-415V / 3ph / 60Hz+N
S
Smoke Sensor
Digit10 Cooling System
H
High Temperature
C
Compliant Scroll Single Circuit, R407C
N
Supply Air Temperature Sensor
S
Compliant Scroll Dual Circuit, R407C
F
Smoke & High Temp
E
Digital Scroll Single Circuit, R407C
A
Supply air pressure sensor
D
Digital Scroll Dual Circuit, R407C
L
Water Flow Sensor
4
Compliant Scroll Single Circuit, R410A
X
Other Sensor
6
Compliant Scroll Dual Circuit,R410A
Digit21 Packaging
7
Digital Scroll Single Circuit,R410A
P
Packaging - Standard Cardboard and Wooden Pallet
T
Digital Scroll Dual Circuit,R410A
C
Packaging - Wooden crate Export
Digit11 Humidification
Digit22 Special Requirements
0
None
A
SFA - none
H
Infrared Humidifier
Z
For Internal Use Only(For Australia and New zealand)
S
Electrode humidifier
E
For Export
Digit12 Display
Digit23 Order Identifier
S
Standard Display
0
Standard Static
L
Large Display
1
High ESP 100 Pa
Digit13 Re-Heating
2
High ESP 200 Pa
0
None
3
Other High ESP
1
Electric heating Std 1 Stage
X
SFA Included
2
Electric heating Opt. 2 Stage
Digit24 Order Identifier
Digit14 Air Filter
0
None
2
G4
L
Air cooled-long piping>30m
3
F5
C
Low temp Kits
Digit15 Coil and Valves
B
Low temp Kits+Long piping
S
Standard DX Air cooled coil
，
TXV
X
SFA Included
E
Standard DX Air cooled coil
，
EEV
Digit25 Order Identifier
4
Dual Cool Coil,BPHE-2way,CW 2 way,TXV
0
None
K
Dual Cool Coil,BPHE-3way,CW-3 way,TXV
X
SFA Included
