Nortec GS Series - Manual (Page 26)

23 | GS Series Installation
NORTEC SERIES
EXTERNAL CONTROLS WIRING CONNECTIONS
LOW VOLTAGE TERMINAL STRIPS
May 27 2008
NORTEC SERIES
EXTERNAL CONTROLS WIRING CONNECTIONS
LOW VOLTAGE TERMINAL STRIP
WA R N I N G : F a i l u r e t o w i r e t h e c o n t r o l l e r
i n a c c o r d a n c e w i t h t h e w i r i n g d i a g r a m
s u p p l i e d w i t h t h e u n i t c o u l d p e r m a n e n t l y
d a m a g e t h e e l e c t r o n i c s . S u c h e r r o r s w i l l
v o i d t h e u n i t w a r r a n t y.
- www.humidity.com -
EXTERNAL
INTERNAL
3 4 6 5 7
EXTERNAL
INTERNAL
Security Loop
24Vac
Signal
Input
"2”
Signal
Input
"1”
1 2
On/Off Control
Humidistat
Air Proving
Switch
High Limit
Humidistat
Blower
Pack
Other On / Off
Device
NOTE: If no On/Off Control
is used then a field jumper
must be connected across
terminals 1 and 2 in order
for the humidifier to operate.
5
V
d
c
+ +
_ _
+ +
Single Dual
POWER TO CONTROLLER OR
TRANSDUCER BY OTHERS
Both inputs to the
humidifier must be
the same type of
signal
Transducers:
Controllers (Humidistat):
Output signal across
3 - 4 and 3 - 5 increase
on RH rise
To be complete with RH
set point adjustment,
sensor circuit,
sensing element,
power source and
2 wire varying output signal.
RH demand are viewed on
display
Output signal across
3 - 4 and 3 - 5 decrease
on RH rise
To be complete with
sensing element,
power source and
2 wire varying output signal.
RH set point adjustment
is made at unit keypad.
RH set point and % RH
sensed are viewed on display
For all controller and transducer signals by others
8
2
4
V
a
c
Terminal 8 is a 24Vac input.
Upon receiving 24Vac a full tank
blowdown will be initiated
Figure 15: GS Series External Controls and Wiring Connections Low Voltage Terminal Strip