Appendix 1 The Structure Chart Of Electric Control Box 85
Liebert.PEX Chilled Water Series Air Conditioner User Manual
5 4 3 2
1
16
A
1214
17
18
11
10
9
8
6
13
15
7
19
20
21
A amplified view
Upflow
5 4 3 2
1
16
A
1214
17
18
11
10
9
8
6
13
15
7
20
21
A amplified view
19
Downflow
Figure 3 Internal structure of three-bay series electrical control box
1——Fan MCB
6——Fuse board
11——N/PE terminal
16——Fan contactor
2——Bus
7——Control board
12——Backup reheat relay
17——Fan overcurrent
protector
3——Electrical heater MCB
8——Control terminal
13——Isolation transformer 18——Main isolation switch
4——Infrared humidifier
MCB
9——Ground current
detector
14——Humidification
contactor
19——Temperature/humidit
y sensor board
5——Control board MCB
10——Power transformer
15——Electrical heating
contactor
20——Main N terminal
21——Main grounding
terminal
