SKE-XL BACnet Steam Humidifier
Installation Instructions and User Manual
18
Stage 6
– Electrical Control Connections
VAV System
Neptronic® SKE-XL modulating Steam Humidifier can be installed in conjunction
with a VAV system, in this case Neptronic®
SHC80
Duct humidity sensor will act as
a High level duct humidity sensor. Humidity will be controlled by Neptronic®
SHR10
or SHC80
room or duct humidity controller.
(Illus. 19)
Dry Contacts
2 volt free contacts are provided :
Operation (fan) contacts:
One normally connected to common and one normally open contact
These contacts are used to switch a low voltage control, up to 24Vac or Vdc, with a
switching current of no more than 3 A.
(Illus. 20)
1
8
7
5
4
3
2
F
6
9
P D sw itch
H igh Lim it
24 V A C
Interlock *
C O M
N O
N C
A larm
C o n tact
2
4
V
A
C
%
R
H
C
O
M
1 2 3
S H C 8 0
(h ig h lim it)
2
4
V
A
C
%
R
H
C
O
M
1 2 3
S H R 1 0 o r S H C 8 0
1
8
7
5
4
3
2
F
6
9
Common
Normally Open
Normally Closed
