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Contactor stage 2
Black
Black
Black
Red
Contactor stage 3
Black
Black
Black
Red
Contactor stage 1
Black
Black
Black
Red
Red
Grey
Red
Transformer
24 Vac
Fuse
L1
L2
L3
F
1
2
Terminal connection
Black
1
Black
3
2
Black
Purple
Heating
element
Black
7
Black
9
8
Black
Purple
Heating element
Black
4
SSR
Black
6
5
Black
Purple
Level
sensor PCB
Level
sensor
Drain pump
Purple
Fill valve #1
Purple
Fill valve #2
Purple
High temp limit switch
(Klixon)
No F 24 Vac Input for modulating control(s)
No 1 & 2
No 3
No 4
No 6
3
4
6
7
8
9
No 7
No 8
No 9
SKE-XL Steam Humidifier
Installation Instructions and User Manual
Modulating PCB
Brown
Red
Yellow
Marine
Red
CONTROL
INPUT
4-20mA
Orange
0-10V
White
2-10V
Black
Purple
HUMIDITY
INPUT
4-20mA
Red
2-10V
Yellow
0-10V
Blue
Purple
Blue
Red
Brown
Red
Rocker switch
STEAM
DRAIN
FILL
CHECK
POWER ON
To high limit switch and differential
pressure switch
Control Signal
0-10 Vdc
2-10 Vdc
4-20 mA
common
common
- 4-20 mA
0-10 Vdc
2-10 Vdc
+ 4-20 mA
RH%
Alarm Normally close
Alarm Normally open
Alarm common
28
Wiring diagram
Marine
Purple
Marine
Relay
Red
Red
Purple
Red
A16 A17
A18
A19
Yellow
Red
Display terminal
Flat cable to display PCB
TOP PCB
MODULATING
AUTO
OFF
DRAIN
LED
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